/* roulang page: index */
:root{
  --bg:#0B0A12;
  --bg-deep:#08070E;
  --panel:#16141F;
  --float:#1E1B2A;
  --line:#2A2738;
  --line-hover:rgba(47,227,214,.55);
  --cyan:#2FE3D6;
  --magenta:#FF3C7D;
  --amber:#FFC24B;
  --text:#F2F0F7;
  --text-2:#A8A3B8;
  --text-3:#6E6A80;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.6);
  --sec-gap:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  padding-top:66px;
}
body::before{
  content:"";position:fixed;top:0;left:0;right:0;height:2px;z-index:2000;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--magenta) 100%);
}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;margin:0;color:var(--text)}
p{margin:0 0 1.15em}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;display:block}
ul,ol{padding-left:1.2em}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.container{max-width:1320px;padding-left:20px;padding-right:20px;margin:0 auto}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:2px;left:0;right:0;z-index:1500;height:64px;
  background:rgba(11,10,18,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);font-weight:800;font-size:17px;letter-spacing:-.01em}
.logo:hover{text-decoration:none;color:var(--text)}
.logo-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--magenta));
  color:#0B0A12;font-size:15px;font-weight:800;
}
.logo-text b{color:var(--cyan);font-weight:800}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:14px}
.main-nav a{
  position:relative;display:inline-block;padding:8px 14px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color .2s ease-out,background .2s ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--cyan);opacity:0;transition:opacity .2s ease-out;
}
.main-nav a:hover{color:#fff;text-decoration:none;background:rgba(47,227,214,.06)}
.main-nav a:hover::after{opacity:1}
.main-nav a.active{color:var(--text)}
.main-nav a.active::after{opacity:1;box-shadow:0 0 12px rgba(47,227,214,.7)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:700;padding:10px 20px;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.btn-main{background:var(--cyan);color:#08131A;border-color:var(--cyan)}
.btn-main:hover{background:#4AEAE0;color:#08131A;text-decoration:none;box-shadow:0 0 22px rgba(47,227,214,.5);transform:translateY(-1px)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{color:#fff;border-color:var(--line-hover);text-decoration:none;box-shadow:0 0 18px rgba(47,227,214,.22)}
.btn-sm{padding:8px 15px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text);font-size:18px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--line-hover);color:var(--cyan)}
.mobile-drawer{background:var(--bg-deep);border-bottom:1px solid var(--line)}
.mobile-drawer a{
  display:block;height:44px;line-height:44px;padding:0 22px;color:var(--text-2);font-size:16px;border-bottom:1px solid rgba(42,39,56,.6);
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--cyan);text-decoration:none;background:rgba(47,227,214,.06)}
.drawer-actions{display:flex;gap:10px;padding:16px 22px}
.drawer-actions .btn-main,.drawer-actions .btn-ghost{flex:1}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:72vh;display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(11,10,18,.97) 0%,rgba(11,10,18,.86) 42%,rgba(11,10,18,.24) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.hero-inner{padding:72px 0 66px;max-width:56%}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.chip{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;
  padding:4px 12px;letter-spacing:.02em;line-height:1.7;
}
.chip-outline{border:1px solid var(--line);color:var(--text-2);background:rgba(30,27,42,.7)}
.chip-cyan{border:1px solid var(--line-hover);color:var(--cyan);background:rgba(47,227,214,.08)}
.chip-magenta{background:var(--magenta);color:#fff;border:1px solid var(--magenta)}
.chip-amber{border:1px solid rgba(255,194,75,.45);color:var(--amber);background:rgba(255,194,75,.08)}
.hero h1{
  font-size:42px;line-height:1.28;margin:0 0 16px;
}
.hero h1 span{color:var(--cyan)}
.hero-sub{font-size:18px;color:var(--text-2);margin-bottom:26px;max-width:520px;line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap}
.hero-stat b{display:block;font-size:28px;font-weight:800;color:var(--amber);line-height:1.2}
.hero-stat span{font-size:13px;color:var(--text-3)}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-gap) 0}
.section-alt{background:var(--bg-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;flex-wrap:wrap}
.sec-head h2{font-size:28px;margin-bottom:8px}
.sec-head .sec-note{font-size:14px;color:var(--text-3);margin:0}
.sec-head h2::before{
  content:"";display:block;width:44px;height:3px;border-radius:2px;margin-bottom:14px;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
}
.text-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:var(--cyan)}
.text-link i{transition:transform .2s ease-out}
.text-link:hover{text-decoration:none}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 横滑片库 ---------- */
.track-wrap{position:relative}
.scroll-track{
  display:flex;gap:16px;overflow-x:auto;padding:6px 2px 22px;
  scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
}
.scroll-track::-webkit-scrollbar{display:none}
.poster-card{flex:0 0 200px;width:200px;scroll-snap-align:start}
.poster{
  position:relative;aspect-ratio:2/3;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.poster img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.poster:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.poster:hover img{transform:scale(1.05)}
.poster-badge{position:absolute;top:10px;left:10px;z-index:2}
.poster-cap{
  position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;
  background:linear-gradient(180deg,rgba(11,10,18,0) 0%,rgba(11,10,18,.92) 78%);
  font-size:14px;font-weight:700;color:#fff;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.poster-sub{margin-top:8px;font-size:12px;color:var(--text-3)}
.track-btn{
  position:absolute;top:38%;width:42px;height:42px;border-radius:50%;z-index:5;
  background:rgba(22,20,31,.92);border:1px solid var(--line);color:var(--text);
  display:grid;place-items:center;cursor:pointer;
  transition:border-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
}
.track-btn:hover{border-color:var(--line-hover);color:var(--cyan);box-shadow:0 0 16px rgba(47,227,214,.35)}
.track-prev{left:-12px}
.track-next{right:-12px}
.track-wrap::before,.track-wrap::after{
  content:"";position:absolute;top:0;bottom:22px;width:44px;pointer-events:none;z-index:3;
}
.track-wrap::before{left:0;background:linear-gradient(90deg,var(--bg),rgba(11,10,18,0))}
.track-wrap::after{right:0;background:linear-gradient(270deg,var(--bg),rgba(11,10,18,0))}
.section-alt .track-wrap::before{background:linear-gradient(90deg,var(--bg-deep),rgba(8,7,14,0))}
.section-alt .track-wrap::after{background:linear-gradient(270deg,var(--bg-deep),rgba(8,7,14,0))}

/* ---------- 推荐网格 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.media-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);height:100%;position:relative;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.media-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.media-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--float)}
.media-thumb img{width:100%;height:100%;object-fit:cover}
.media-thumb .corner{
  position:absolute;right:10px;bottom:10px;font-size:13px;font-weight:800;color:var(--amber);
  background:rgba(11,10,18,.82);border-radius:8px;padding:2px 9px;
}
.media-body{padding:18px 18px 20px}
.media-body h3{font-size:18px;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.media-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.media-card a.stretched{position:absolute;inset:0;z-index:4}
.media-card:hover h3{color:var(--cyan)}

/* ---------- 分区 A：左大图 + 右列表 ---------- */
.split-a{display:grid;grid-template-columns:1.15fr 1fr;gap:34px;align-items:start}
.feature-box{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--panel);box-shadow:var(--shadow);
}
.feature-visual{position:relative;aspect-ratio:16/10;overflow:hidden}
.feature-visual img{width:100%;height:100%;object-fit:cover}
.feature-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,10,18,0) 40%,rgba(11,10,18,.92) 100%)}
.feature-cap{position:absolute;left:22px;right:22px;bottom:18px;z-index:2}
.feature-cap h3{font-size:22px;margin-bottom:6px}
.feature-cap p{font-size:14px;color:var(--text-2);margin:0}
.feature-list{display:flex;flex-direction:column;gap:14px}
.list-item{
  display:flex;gap:16px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 18px;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.list-item:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--shadow)}
.list-index{
  flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(47,227,214,.1);color:var(--cyan);font-weight:800;font-size:14px;
}
.list-item h4{font-size:17px;margin-bottom:6px}
.list-item p{font-size:14px;color:var(--text-3);margin:0;line-height:1.75}

/* ---------- 分区 B：Tab + 宽卡 ---------- */
.tab-bar{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-bottom:26px;padding-bottom:2px}
.tab-bar button{
  background:transparent;border:0;border-bottom:2px solid transparent;color:var(--text-3);
  font-size:15px;font-weight:700;padding:10px 16px;cursor:pointer;transition:color .2s ease-out,border-color .2s ease-out;
}
.tab-bar button:hover{color:var(--text)}
.tab-bar button.active{color:var(--text);border-bottom-color:var(--cyan);box-shadow:0 6px 14px -8px rgba(47,227,214,.9)}
.wide-card{
  display:grid;grid-template-columns:190px 1fr;gap:0;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;height:100%;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.wide-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.wide-cover{position:relative;overflow:hidden;background:var(--float)}
.wide-cover img{width:100%;height:100%;object-fit:cover}
.wide-body{padding:20px 22px}
.wide-body h3{font-size:19px;margin-bottom:10px}
.wide-body p{font-size:14.5px;color:var(--text-2);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 资讯列表（CMS） ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow);color:var(--text);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-hover);text-decoration:none;color:var(--text)}
.news-card h3{font-size:18px;line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{color:var(--cyan)}
.news-card .news-sum{
  font-size:14.5px;color:var(--text-2);margin-bottom:18px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.news-foot .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;background:var(--panel);
}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:14px;display:block}
.empty-state p{color:var(--text-2);margin-bottom:20px}

/* ---------- 数据/口碑 ---------- */
.proof{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.proof-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;height:100%;
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.proof-card:hover{border-color:var(--line-hover);transform:translateY(-3px)}
.proof-card b{display:block;font-size:30px;font-weight:800;color:var(--cyan);line-height:1.25}
.proof-card span{font-size:13.5px;color:var(--text-2)}
.quote-card{background:var(--float);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;height:100%}
.quote-card p{font-size:15px;color:var(--text-2);line-height:1.85}
.quote-who{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.quote-avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--magenta));display:grid;place-items:center;color:#0B0A12;font-weight:800;font-size:14px}
.stars{color:var(--amber);font-size:13px;letter-spacing:2px}

/* ---------- FAQ ---------- */
.accordion-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card)!important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:700;
  padding:20px 22px;line-height:1.6;box-shadow:none!important;border-left:2px solid transparent;
}
.accordion-button:not(.collapsed){
  color:var(--cyan);background:rgba(47,227,214,.06);border-left-color:var(--cyan);
}
.accordion-button::after{display:none}
.accordion-button .faq-sign{margin-left:auto;font-size:18px;color:var(--text-3);transition:color .2s ease-out}
.accordion-button:not(.collapsed) .faq-sign{color:var(--cyan)}
.accordion-body{padding:4px 22px 24px;color:var(--text-2);font-size:15.5px;line-height:1.9}
.accordion-body a{color:var(--cyan)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(135deg,#0B0A12 0%,rgba(255,60,125,.14) 100%);
  padding:56px 48px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;
  opacity:.16;
}
.cta-inner{position:relative;z-index:2;max-width:640px}
.cta-inner h2{font-size:28px;margin-bottom:14px}
.cta-inner p{color:var(--text-2);margin-bottom:26px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;max-width:520px}
.cta-form input[type="text"],.cta-form input[type="email"]{
  flex:1 1 240px;min-width:0;background:#0F0E17;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text);padding:12px 16px;font-size:15px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,227,214,.18)}
.form-hint{font-size:13px;color:var(--text-3);margin-top:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 0;margin-top:var(--sec-gap)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--cyan);text-decoration:none}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--cyan)}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .container{max-width:1180px}
}
@media (max-width:1199px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .proof{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:38px}
}
@media (max-width:991px){
  :root{--sec-gap:64px}
  .main-nav{display:none}
  .header-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero-inner{max-width:78%}
  .hero h1{font-size:34px}
  .split-a{grid-template-columns:1fr;gap:26px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:44px 32px}
}
@media (max-width:767px){
  :root{--sec-gap:48px}
  body{font-size:16px}
  .container{padding-left:16px;padding-right:16px}
  .hero{min-height:auto;background-image:linear-gradient(180deg,rgba(11,10,18,.82) 0%,rgba(11,10,18,.97) 62%,var(--bg) 100%),url('/assets/images/backpic/back-1.webp');background-position:center top}
  .hero-inner{max-width:100%;padding:52px 0 46px;text-align:left}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-cta{gap:12px}
  .hero-cta .btn-main,.hero-cta .btn-ghost{flex:1 1 100%}
  .hero-stats{gap:26px}
  .hero-stat b{font-size:24px}
  .sec-head h2{font-size:22px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .proof{grid-template-columns:1fr}
  .poster-card{flex:0 0 148px;width:148px}
  .wide-card{grid-template-columns:1fr}
  .wide-cover{aspect-ratio:16/9}
  .track-btn{display:none}
  .track-wrap::before,.track-wrap::after{width:22px}
  .cta-form{flex-direction:column}
  .cta-form button{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .accordion-button{font-size:16px;padding:16px 18px}
}
@media (max-width:520px){
  .hero h1{font-size:25px}
  .hero-stats{gap:20px}
  .proof-card b{font-size:26px}
}

/* roulang page: article */
:root{
  --bg:#0B0A12;
  --bg-deep:#08070E;
  --panel:#16141F;
  --panel-2:#1E1B2A;
  --line:#2A2738;
  --line-hover:rgba(47,227,214,.55);
  --primary:#2FE3D6;
  --primary-deep:#07131A;
  --accent:#FF3C7D;
  --gold:#FFC24B;
  --text-1:#F2F0F7;
  --text-2:#A8A3B8;
  --text-3:#6E6A80;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.6);
  --shell:1320px;
  --sec-gap:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;line-height:1.32;margin:0;color:var(--text-1)}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.15em;padding-left:22px}
button{font-family:inherit}
.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}

/* ============ 顶栏导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,10,18,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#0B0A12;font-weight:800;font-size:16px;letter-spacing:0;
}
.logo-text{font-size:17px;font-weight:800;color:var(--text-1);white-space:nowrap}
.logo-text b{color:var(--primary);font-weight:800}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.main-nav a{
  position:relative;padding:0 14px;line-height:64px;font-size:15px;color:var(--text-2);white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:13px;height:2px;
  background:var(--primary);opacity:0;transition:opacity .2s ease;border-radius:2px;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{opacity:.55}
.main-nav a.active{color:var(--text-1)}
.main-nav a.active::after{opacity:1;box-shadow:0 0 12px rgba(47,227,214,.7)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);font-size:15px;font-weight:700;
  padding:11px 22px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  line-height:1.2;
}
.btn-primary{background:var(--primary);color:var(--primary-deep)}
.btn-primary:hover{background:#4FEEE2;box-shadow:0 0 20px rgba(47,227,214,.35);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:#fff;box-shadow:0 0 18px rgba(47,227,214,.2);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:700}
.link-more i{transition:transform .2s ease}
.link-more:hover i{transform:translateX(3px)}
.nav-toggle{
  display:none;margin-left:auto;background:transparent;border:1px solid var(--line);
  color:var(--text-1);width:42px;height:38px;border-radius:10px;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,10,18,.72);opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;z-index:1040;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:1050;
  background:var(--panel);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s ease;padding:20px 22px 32px;
  overflow-y:auto;
}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{background:transparent;border:1px solid var(--line);color:var(--text-1);width:36px;height:36px;border-radius:10px;cursor:pointer}
.drawer-close:hover{border-color:var(--primary);color:var(--primary)}
.drawer a{display:flex;align-items:center;height:44px;color:var(--text-2);font-size:16px;border-bottom:1px solid var(--line)}
.drawer a:hover{color:#fff}
.drawer a.active{color:var(--primary)}
.drawer .btn{width:100%;margin-top:18px}

/* ============ 文章头部 ============ */
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13.5px;color:var(--text-3);padding:26px 0 0;
}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#3B374B}
.crumbs .now{color:var(--text-2);max-width:min(60%,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{padding:22px 0 34px;border-bottom:1px solid var(--line);position:relative}
.article-head::after{
  content:"";position:absolute;left:0;bottom:-1px;width:120px;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.article-head h1{
  font-size:42px;line-height:1.28;margin:0 0 16px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13.5px;color:var(--text-3)}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(255,60,125,.14);color:var(--accent);border:1px solid rgba(255,60,125,.35);
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item i{color:var(--primary);font-size:12px}

/* ============ 正文 ============ */
.article-layout{padding:46px 0 0}
.article-wrap{max-width:780px;margin:0 auto}
.article-body{font-size:17px;line-height:1.9;color:#DED9EA}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:28px;margin:48px 0 20px;color:var(--text-1);
  padding-left:14px;border-left:3px solid var(--primary);line-height:1.4;
}
.article-body h3{font-size:20px;margin:32px 0 12px;color:var(--text-1)}
.article-body h4{font-size:18px;margin:26px 0 10px;color:var(--text-1)}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:24px}
.article-body li{margin-bottom:.5em}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(47,227,214,.4)}
.article-body a:hover{text-decoration-color:var(--primary)}
.article-body img{border-radius:var(--radius-sm);margin:24px 0}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--panel);
  border-left:3px solid var(--primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--panel-2);color:var(--text-1);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body code{background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--primary)}

.empty-state{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow);
}
.empty-state i{font-size:34px;color:var(--primary);margin-bottom:16px;display:block}
.empty-state h2{font-size:24px;margin:0 0 12px}
.empty-state p{color:var(--text-2);max-width:440px;margin:0 auto 24px}

/* ============ 板块通用 ============ */
.section{padding-top:var(--sec-gap)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:28px}
.section-desc{font-size:14px;color:var(--text-3);margin:8px 0 0}

/* ============ 相关推荐 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.rel-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.rel-cover img{width:100%;height:100%;object-fit:cover}
.rel-body{padding:18px 20px 22px}
.rel-body h3{font-size:18px;line-height:1.5;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body p{
  font-size:14.5px;color:var(--text-2);margin:0 0 14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);
}
.tag-hot{background:rgba(255,60,125,.14);border-color:rgba(255,60,125,.35);color:var(--accent)}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}

.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:var(--line-hover)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--primary);font-size:22px;font-weight:400;line-height:1;flex:0 0 auto;
}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{border-bottom:1px solid var(--line)}
.faq-body{padding:16px 22px 20px;color:var(--text-2);font-size:15.5px;line-height:1.9;border-left:2px solid var(--primary)}
.faq-body p:last-child{margin-bottom:0}

/* ============ CTA ============ */
.cta-band{
  margin-top:var(--sec-gap);
  background:linear-gradient(135deg,#0B0A12 0%,rgba(255,60,125,.12) 100%),var(--panel);
  border:1px solid var(--line);border-radius:20px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:28px;margin:0 0 12px}
.cta-band p{color:var(--text-2);margin:0;max-width:560px;font-size:15.5px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;min-width:min(100%,380px)}
.cta-form input{
  flex:1 1 200px;background:#0F0D16;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--text-1);padding:12px 16px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,227,214,.16)}
.form-label{display:block;font-size:14px;color:var(--text-3);margin-bottom:8px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);margin-top:var(--sec-gap);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-3);font-size:14.5px;line-height:1.8;max-width:340px;margin:0}
.footer-col h4{font-size:15px;margin:0 0 16px;color:var(--text-1)}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--text-2);font-size:14.5px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--text-3);font-size:13.5px;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sec-gap:64px}
  .article-head h1{font-size:36px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .main-nav,.header-actions{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .article-head h1{font-size:32px}
  .article-body h2{font-size:24px}
  .cta-band{padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  :root{--sec-gap:48px}
  body{font-size:16px}
  .container{padding:0 16px}
  .article-head h1{font-size:28px}
  .crumbs{padding-top:18px}
  .article-head{padding:16px 0 26px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px;margin:36px 0 16px}
  .article-body h3{font-size:18px;margin:26px 0 10px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .rel-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head h2{font-size:22px}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-form{width:100%}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .article-head h1{font-size:25px}
  .meta-row{font-size:12.5px}
  .back-row .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg:#0B0A12;
  --bg-deep:#08070E;
  --panel:#16141F;
  --panel-2:#1E1B2A;
  --line:#2A2738;
  --line-hi:rgba(47,227,214,.55);
  --text:#F2F0F7;
  --text-2:#A8A3B8;
  --text-3:#6E6A80;
  --cyan:#2FE3D6;
  --cyan-soft:rgba(47,227,214,.12);
  --magenta:#FF3C7D;
  --amber:#FFC24B;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hi:0 14px 34px rgba(0,0,0,.6);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease)}
button,input{font:inherit}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;line-height:1.35;margin:0;color:var(--text)}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1320px;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(11,10,18,.92);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:"";display:block;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--cyan),#1fb9c4);
  color:#06110F;font-weight:800;font-size:18px;letter-spacing:-.02em;
  box-shadow:0 0 18px rgba(47,227,214,.35);
}
.logo-text{font-size:16px;font-weight:700;color:var(--text);white-space:nowrap}
.logo-text b{font-weight:800;color:var(--cyan)}
.main-nav{display:flex;align-items:center;margin-left:auto;height:64px}
.main-nav a{
  position:relative;height:64px;display:inline-flex;align-items:center;
  padding:0 14px;color:var(--text-2);font-size:15px;font-weight:500;
  transition:color var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--ease);box-shadow:0 0 12px rgba(47,227,214,.7);
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--text);font-weight:700}
.main-nav a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--cyan);color:#06110F}
.btn-primary:hover{background:#4febdf;box-shadow:0 0 18px rgba(47,227,214,.45)}
.btn-ghost{background:transparent;color:var(--text-2);border-color:var(--line)}
.btn-ghost:hover{color:#fff;border-color:var(--line-hi);box-shadow:0 0 16px rgba(47,227,214,.18)}
.btn-lg{height:50px;padding:0 26px;font-size:16px;border-radius:12px}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;
  color:var(--text);cursor:pointer;transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--line-hi);color:var(--cyan)}
.drawer-mask{
  position:fixed;inset:0;z-index:1050;background:rgba(11,10,18,.72);
  opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(84vw,340px);height:100%;
  background:var(--panel);border-left:1px solid var(--line);
  padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease-out;
}
.drawer-mask.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:36px;height:36px;border-radius:10px;background:transparent;
  border:1px solid var(--line);color:var(--text-2);cursor:pointer;
}
.drawer-close:hover{color:var(--cyan);border-color:var(--line-hi)}
.drawer-panel a.drawer-link{
  display:flex;align-items:center;height:44px;color:var(--text-2);font-size:15.5px;
  border-bottom:1px solid rgba(42,39,56,.7);
}
.drawer-panel a.drawer-link:hover{color:var(--cyan)}
.drawer-panel a.drawer-link.active{color:var(--text);font-weight:700}
.drawer-panel .btn{width:100%;margin-top:18px}

/* ============ 横幅 ============ */
.page-banner{
  position:relative;min-height:36vh;display:flex;align-items:flex-end;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,10,18,.97) 0%,rgba(11,10,18,.78) 55%,rgba(11,10,18,.4) 100%);
}
.page-banner .container{position:relative;z-index:2;padding-top:76px;padding-bottom:34px}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:var(--line-hi)}
.crumb .now{color:var(--text-2)}
.page-title{font-size:clamp(28px,4vw,42px);line-height:1.28;margin:0 0 16px;max-width:820px}
.page-title em{font-style:normal;color:var(--cyan)}
.banner-sub{color:var(--text-2);font-size:16.5px;max-width:660px;margin-bottom:20px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--text-2);
  background:transparent;cursor:pointer;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.chip:hover{color:#fff;border-color:var(--line-hi)}
.chip.active{background:var(--cyan);color:#06110F;border-color:var(--cyan);font-weight:700}
.chip.tag{background:rgba(255,60,125,.12);border-color:rgba(255,60,125,.4);color:#FF7FAA;cursor:default}
.chip.tag:hover{border-color:rgba(255,60,125,.6);color:#FF9FBE}
.chip.amber{background:rgba(255,194,75,.12);border-color:rgba(255,194,75,.38);color:var(--amber);cursor:default}

/* ============ 通用板块 ============ */
.section{padding:88px 0;border-top:1px solid var(--line)}
.section.alt{background:var(--panel)}
.section:first-of-type{border-top:0}
.section-head{margin-bottom:40px;max-width:760px}
.section-head .eyebrow{
  font-size:12px;letter-spacing:.16em;color:var(--cyan);font-weight:700;
  display:inline-block;margin-bottom:12px;text-transform:uppercase;
}
.section-head h2{font-size:clamp(22px,3vw,28px);margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:16px;margin:0}
.divider-line{height:1px;background:var(--line);margin:0}

/* ============ 筛选 + 内容网格 ============ */
.browse{padding:64px 0 88px}
.filter-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;position:sticky;top:88px;
}
.filter-group{margin-bottom:22px}
.filter-group:last-of-type{margin-bottom:0}
.filter-group h3{
  font-size:12px;letter-spacing:.14em;color:var(--text-3);font-weight:700;
  margin:0 0 12px;
}
.filter-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);line-height:1.75;
}
.result-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-bottom:24px;flex-wrap:wrap;
}
.result-bar h2{font-size:20px}
.result-bar span{font-size:13.5px;color:var(--text-3)}
.content-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.content-card:hover{
  transform:translateY(-4px);border-color:var(--line-hi);
  box-shadow:var(--shadow-hi);
}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#000}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.content-card:hover .card-cover img{transform:scale(1.05)}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,10,18,0) 45%,rgba(11,10,18,.75) 100%);
}
.card-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;padding:4px 10px;border-radius:999px;
  background:rgba(255,60,125,.9);color:#fff;font-weight:700;
  box-shadow:0 4px 14px rgba(255,60,125,.35);
}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.5;margin:0}
.card-body p{
  margin:0;font-size:14.5px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;
  gap:10px;font-size:12.5px;color:var(--text-3);border-top:1px solid rgba(42,39,56,.75);
}
.card-meta .score{color:var(--amber);font-weight:700;font-variant-numeric:tabular-nums}
.pager{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:44px;flex-wrap:wrap}
.pager a,.pager .current{
  min-width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--text-2);font-variant-numeric:tabular-nums;
  padding:0 14px;transition:all var(--ease);
}
.pager a:hover{border-color:var(--line-hi);color:#fff}
.pager .current{background:var(--cyan);color:#06110F;border-color:var(--cyan);font-weight:700}

/* ============ 属性面板 ============ */
.stat-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;height:100%;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.stat-panel:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--shadow-hi)}
.stat-icon{
  width:44px;height:44px;border-radius:12px;display:inline-flex;
  align-items:center;justify-content:center;font-size:18px;
  background:var(--cyan-soft);color:var(--cyan);margin-bottom:16px;
  border:1px solid rgba(47,227,214,.28);
}
.stat-panel h3{font-size:18px;margin-bottom:10px}
.stat-panel p{font-size:15px;color:var(--text-2);margin:0}
.stat-panel .stat-value{
  font-size:26px;font-weight:800;color:var(--amber);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:28px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(47,227,214,.08));
}
.timeline-item{position:relative;padding:0 0 30px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-28px;top:8px;width:14px;height:14px;border-radius:999px;
  background:var(--bg);border:2px solid var(--cyan);
  box-shadow:0 0 12px rgba(47,227,214,.6);
}
.timeline-item h3{font-size:18px;margin-bottom:8px}
.timeline-item p{font-size:15px;color:var(--text-2);margin:0}
.timeline-item .step-no{
  font-size:12px;color:var(--cyan);font-weight:700;letter-spacing:.14em;
  display:block;margin-bottom:6px;font-variant-numeric:tabular-nums;
}

/* ============ 设备对照 ============ */
.device-card{
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;height:100%;transition:border-color var(--ease),transform var(--ease);
}
.device-card:hover{border-color:var(--line-hi);transform:translateY(-4px)}
.device-card h3{font-size:20px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.device-card h3 i{color:var(--cyan)}
.device-card ul{display:flex;flex-direction:column;gap:12px}
.device-card li{
  font-size:15px;color:var(--text-2);padding-left:18px;position:relative;line-height:1.8;
}
.device-card li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:999px;
  background:var(--cyan);
}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:14px;overflow:hidden;
  transition:border-color var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--cyan);
  opacity:0;transition:opacity var(--ease);box-shadow:0 0 12px rgba(47,227,214,.7);
}
.faq-item.open::before{opacity:1}
.faq-item.open{border-color:var(--line-hi)}
.faq-q{
  width:100%;background:transparent;border:0;color:var(--text);text-align:left;
  padding:20px 22px;font-size:17px;font-weight:700;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  line-height:1.6;
}
.faq-q:hover{color:var(--cyan)}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;color:var(--cyan);margin-top:2px;
  transition:transform var(--ease),border-color var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:var(--line-hi)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a-inner{
  padding:0 22px 22px;font-size:15.5px;color:var(--text-2);line-height:1.85;
}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(135deg,#0B0A12 0%,rgba(255,60,125,.12) 100%),var(--panel);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:56px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
}
.cta-band h2{font-size:clamp(22px,3vw,28px);margin-bottom:14px}
.cta-band p{color:var(--text-2);font-size:16px;max-width:620px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;max-width:640px}
.field{flex:1 1 260px;display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;color:var(--text-3)}
.field input{
  height:50px;padding:0 16px;border-radius:12px;
  background:rgba(11,10,18,.7);border:1px solid var(--line);color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,227,214,.18);
}
.cta-form .btn{align-self:flex-end}
.form-hint{margin-top:14px;font-size:14px;color:var(--cyan);display:none}
.form-hint.show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--text-3);line-height:1.85;max-width:340px;margin:0}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14.5px;color:var(--text-3)}
.footer-col a:hover{color:var(--cyan)}
.footer-col li span{font-size:14.5px;color:var(--text-3)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:24px;font-size:13.5px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section{padding:72px 0}
  .filter-panel{position:static}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container{padding-left:16px;padding-right:16px}
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .page-banner{min-height:52vh}
  .page-banner .container{padding-top:56px;padding-bottom:28px}
  .page-banner::after{background:linear-gradient(180deg,rgba(11,10,18,.78) 0%,rgba(11,10,18,.95) 100%)}
  .browse{padding:44px 0 64px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .cta-band{padding:28px;border-radius:16px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%;align-self:stretch}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:16px;padding:18px 16px}
  .faq-a-inner{padding:0 16px 18px;font-size:15px}
  .timeline{padding-left:24px}
  .timeline-item::before{left:-24px}
}
@media (max-width:575.98px){
  .page-title{font-size:26px}
  .card-body{padding:14px}
  .stat-panel,.device-card{padding:20px}
  .pager a,.pager .current{min-width:38px;height:38px;font-size:13px}
}

/* roulang page: category2 */
:root{
  --bg:#0B0A12;
  --bg-deep:#08070E;
  --panel:#16141F;
  --panel-2:#1E1B2A;
  --line:#2A2738;
  --line-hover:rgba(47,227,214,.55);
  --accent:#2FE3D6;
  --magenta:#FF3C7D;
  --amber:#FFC24B;
  --text-1:#F2F0F7;
  --text-2:#A8A3B8;
  --text-3:#6E6A80;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:0 14px 34px rgba(0,0,0,.6);
  --container:1320px;
  --gap-section:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;margin:0;color:var(--text-1)}
h1{font-size:42px;line-height:1.3;margin-bottom:16px}
h2{font-size:28px;line-height:1.35;margin:48px 0 20px}
h3{font-size:20px;line-height:1.45;margin:32px 0 12px}
p{margin:0 0 1.15em;color:var(--text-2)}
ul{margin:0;padding-left:1.2em}
.num{font-variant-numeric:tabular-nums}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(11,10,18,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.neon-line{
  height:2px;
  background:linear-gradient(90deg,var(--accent),var(--magenta));
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--magenta));
  color:#0B0A12;
  font-weight:800;
  font-size:17px;
  box-shadow:0 0 18px rgba(47,227,214,.35);
}
.logo-text{
  font-size:16.5px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.logo-text b{color:var(--accent);font-weight:800}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1;
}
.main-nav a{
  position:relative;
  padding:10px 14px;
  font-size:15.5px;
  color:var(--text-2);
  border-radius:8px;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--text-1)}
.main-nav a.active::after{
  transform:scaleX(1);
  box-shadow:0 0 12px rgba(47,227,214,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);
  color:#08131A;
  box-shadow:0 6px 18px rgba(47,227,214,.22);
}
.btn-primary:hover{
  background:#4AEEE2;
  color:#08131A;
  box-shadow:0 8px 26px rgba(47,227,214,.42);
  transform:translateY(-1px);
}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-2);
}
.btn-ghost:hover{
  border-color:var(--accent);
  color:var(--text-1);
  box-shadow:0 0 16px rgba(47,227,214,.25);
}
.btn-magenta{
  background:linear-gradient(135deg,var(--magenta),#C51F5C);
  color:#fff;
}
.btn-magenta:hover{
  color:#fff;
  box-shadow:0 10px 26px rgba(255,60,125,.38);
  transform:translateY(-1px);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  font-size:14.5px;
  font-weight:700;
}
.text-link i{transition:transform .2s ease}
.text-link:hover i{transform:translateX(3px)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  background:transparent;
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text-1);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent)}
.drawer-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(11,10,18,.72);
  z-index:1100;
}
.drawer-mask.open{display:block}
.drawer{
  position:fixed;
  top:0;right:0;
  width:280px;
  height:100%;
  background:var(--panel);
  border-left:1px solid var(--line);
  z-index:1200;
  padding:24px 20px;
  transform:translateX(102%);
  transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer h4{font-size:13px;color:var(--text-3);letter-spacing:.12em;margin-bottom:14px;font-weight:700}
.drawer a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-2);
  font-size:15.5px;
  border:1px solid transparent;
}
.drawer a:hover,.drawer a.active{
  color:var(--text-1);
  background:var(--panel-2);
  border-color:var(--line-hover);
}
.drawer-close{
  background:transparent;
  border:1px solid var(--line);
  color:var(--text-1);
  width:38px;height:38px;
  border-radius:10px;
  margin-bottom:18px;
  cursor:pointer;
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 48px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(11,10,18,.96) 0%,rgba(11,10,18,.86) 45%,rgba(30,27,42,.72) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  left:0;top:0;
  width:4px;height:100%;
  background:linear-gradient(180deg,var(--accent),var(--magenta));
}
.breadcrumb-nav{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb-nav a{color:var(--text-2)}
.breadcrumb-nav span.sep{color:var(--text-3)}
.breadcrumb-nav .current{color:var(--text-1)}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--accent);
  border:1px solid rgba(47,227,214,.4);
  border-radius:var(--radius-pill);
  padding:4px 12px;
  margin-bottom:18px;
}
.page-hero h1{max-width:20ch}
.hero-sub{
  max-width:66ch;
  font-size:17px;
  color:var(--text-2);
  margin-bottom:24px;
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  padding:4px 10px;
  border-radius:var(--radius-pill);
  background:rgba(255,60,125,.12);
  color:#FF7BA6;
  border:1px solid rgba(255,60,125,.3);
  white-space:nowrap;
}
.chip-line{
  background:transparent;
  color:var(--text-2);
  border:1px solid var(--line);
}
.chip-amber{
  background:rgba(255,194,75,.12);
  color:var(--amber);
  border:1px solid rgba(255,194,75,.3);
}

/* ---------- sections ---------- */
.section{padding:var(--gap-section) 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{margin:0}
.section-desc{
  font-size:14.5px;
  color:var(--text-3);
  margin:8px 0 0;
  max-width:70ch;
}
.panel-block{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px;
}

/* stats */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 20px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.stat-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-hover);
  box-shadow:var(--shadow-lg);
}
.stat-card i{
  font-size:18px;
  color:var(--accent);
  margin-bottom:14px;
  display:block;
}
.stat-value{
  font-size:30px;
  font-weight:800;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-value small{font-size:14px;color:var(--text-2);font-weight:600;margin-left:4px}
.stat-label{font-size:14.5px;color:var(--text-2);margin-top:6px}

/* tabs */
.tab-bar{
  display:flex;
  gap:4px;
  overflow-x:auto;
  border-bottom:1px solid var(--line);
  margin-bottom:32px;
  scrollbar-width:none;
}
.tab-bar::-webkit-scrollbar{display:none}
.tab-btn{
  position:relative;
  background:none;
  border:0;
  padding:14px 18px;
  font-size:15.5px;
  color:var(--text-2);
  cursor:pointer;
  white-space:nowrap;
  transition:color .2s ease;
  font-family:inherit;
}
.tab-btn:hover{color:var(--text-1)}
.tab-btn.active{color:var(--text-1);font-weight:700}
.tab-btn.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:-1px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(47,227,214,.7);
}
.tab-btn .count{
  font-size:12px;
  color:var(--text-3);
  margin-left:6px;
  font-variant-numeric:tabular-nums;
}

/* long cards */
.long-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.long-card{
  display:grid;
  grid-template-columns:176px 1fr;
  gap:18px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.long-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-hover);
  box-shadow:var(--shadow-lg);
}
.lc-cover{
  border-radius:var(--radius-sm);
  overflow:hidden;
  position:relative;
  background:var(--panel-2);
  min-height:132px;
}
.lc-cover img{
  width:100%;height:100%;
  object-fit:cover;
  aspect-ratio:4/3;
}
.lc-body{min-width:0}
.lc-tags{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.lc-meta{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.lc-body h3{
  font-size:17.5px;
  margin:0 0 8px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.lc-body p{
  font-size:14.5px;
  line-height:1.75;
  margin:0 0 14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.long-card.is-hidden{display:none}
.load-more-wrap{
  display:flex;
  justify-content:center;
  margin-top:40px;
}
#loadMoreBtn:disabled{
  opacity:.55;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}

/* timeline */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  position:relative;
}
.tl-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 22px;
  position:relative;
  transition:border-color .2s ease,transform .2s ease;
}
.tl-item:hover{border-color:var(--line-hover);transform:translateY(-4px)}
.tl-index{
  font-size:13px;
  font-weight:800;
  color:var(--accent);
  letter-spacing:.1em;
  border:1px solid rgba(47,227,214,.35);
  border-radius:var(--radius-pill);
  padding:2px 10px;
  display:inline-block;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.tl-item h3{font-size:17px;margin:0 0 8px}
.tl-item p{font-size:14.5px;margin:0;line-height:1.75}

/* FAQ */
.faq-list{
  display:grid;
  gap:14px;
  max-width:900px;
}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item.open{border-color:var(--line-hover)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  background:none;
  border:0;
  padding:20px 24px;
  color:var(--text-1);
  font-size:16.5px;
  font-weight:700;
  cursor:pointer;
  font-family:inherit;
  line-height:1.6;
}
.faq-q .plus{
  flex-shrink:0;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:8px;
  border:1px solid var(--line);
  color:var(--accent);
  font-size:15px;
  transition:transform .25s ease,border-color .25s ease;
}
.faq-item.open .faq-q .plus{transform:rotate(180deg);border-color:var(--accent)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
  border-left:2px solid transparent;
}
.faq-item.open .faq-a{border-left-color:var(--accent)}
.faq-a p{
  padding:0 24px 22px 24px;
  margin:0;
  font-size:15px;
  line-height:1.85;
}

/* CTA */
.cta-band{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:48px 40px;
  background:linear-gradient(135deg,rgba(11,10,18,.98) 0%,rgba(255,60,125,.12) 100%);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{margin:0 0 10px}
.cta-band p{margin:0;max-width:56ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* footer */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  margin-top:var(--gap-section);
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:38px;
  padding-bottom:40px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--text-3);max-width:38ch;margin:0}
.footer-col h4{
  font-size:14px;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:var(--text-3)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  :root{--gap-section:64px}
  h1{font-size:36px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:992px){
  .main-nav{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:block}
  .header-inner{justify-content:space-between}
  .long-list{grid-template-columns:1fr}
  .long-card{grid-template-columns:200px 1fr}
  .panel-block{padding:26px}
}
@media (max-width:768px){
  :root{--gap-section:48px}
  body{font-size:16px}
  h1{font-size:28px}
  h2{font-size:22px;margin:32px 0 16px}
  h3{font-size:18px}
  .container{padding:0 16px}
  .page-hero{padding:36px 0 32px}
  .page-hero h1{max-width:none}
  .hero-sub{font-size:15.5px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-value{font-size:24px}
  .long-card{grid-template-columns:1fr;padding:14px}
  .lc-cover img{aspect-ratio:16/9}
  .timeline{grid-template-columns:1fr}
  .cta-band{padding:30px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;justify-content:center}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1/-1}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{padding:11px 16px;font-size:14.5px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}