/* roulang page: index */
:root{
  --bg:#0B0D0C;
  --surface:#141816;
  --surface-2:#1B211E;
  --deep:#080A09;
  --primary:#C9F24D;
  --primary-dark:#9FD41F;
  --accent:#FF5C36;
  --text:#F4F2EA;
  --text-2:#A8B0A6;
  --text-3:#6E7A6E;
  --line:rgba(255,255,255,.08);
  --line-glow:rgba(201,242,77,.35);
  --line-nav:rgba(201,242,77,.18);
  --r-sm:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh:0 8px 24px rgba(0,0,0,.35);
  --sh-h:0 16px 40px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:#0B0D0C;
  --bs-body-color:#F4F2EA;
  --bs-primary:#C9F24D;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:992px){.container-x{padding:0 32px}}
@media(min-width:1200px){.container-x{max-width:1200px}}

.section{padding:clamp(56px,7vw,104px) 0}
.section-tight{padding:clamp(40px,5vw,72px) 0}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1050;
  background:rgba(11,13,12,.96);
  border-bottom:1px solid var(--line-nav);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(8,10,9,.99);border-bottom-color:rgba(201,242,77,.42);box-shadow:0 10px 30px rgba(0,0,0,.55)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px rgba(201,242,77,.75);flex-shrink:0}
.brand-name{font-size:19px;font-weight:900;letter-spacing:-.02em;color:var(--primary);font-variant-numeric:tabular-nums}
.brand-tail{font-size:13px;font-weight:600;color:var(--text-2);letter-spacing:.02em}
@media(max-width:575px){.brand-tail{display:none}}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link-x{position:relative;font-size:15px;font-weight:600;color:var(--text-2);padding:6px 2px;transition:color .2s ease}
.nav-link-x::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-3px;height:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(201,242,77,.7);
  transition:left .24s var(--ease),right .24s var(--ease);
}
.nav-link-x:hover{color:var(--text)}
.nav-link-x.active{color:var(--primary);text-shadow:0 0 14px rgba(201,242,77,.35)}
.nav-link-x.active::after{left:0;right:0}
.header-cta{flex-shrink:0}
.nav-cta{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:transparent;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:var(--line-glow)}
.nav-toggle span{width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:991px){
  .header-inner{height:56px}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:56px;left:0;right:0;bottom:0;z-index:1045;
    background:var(--deep);flex-direction:column;align-items:stretch;gap:0;
    padding:24px 20px 48px;transform:translateX(100%);
    transition:transform .3s var(--ease);overflow-y:auto;
  }
  .nav-links.open{transform:none}
  .nav-link-x{font-size:20px;padding:16px 0 16px 16px;border-left:2px solid transparent;color:var(--text)}
  .nav-link-x::after{display:none}
  .nav-link-x.active{border-left-color:var(--primary);background:linear-gradient(90deg,rgba(201,242,77,.10),transparent 70%)}
  .nav-cta{display:inline-flex;justify-content:center;margin-top:20px}
}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);border:1px solid transparent;
  background:var(--primary);color:#0B0D0C;font-size:15px;font-weight:700;letter-spacing:.01em;
  cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s ease,background .2s ease,filter .2s ease;
}
.btn-main:hover{background:var(--primary-dark);color:#0B0D0C;transform:translateY(-2px);box-shadow:0 0 22px rgba(201,242,77,.5)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--primary);color:var(--primary);
  font-size:15px;font-weight:700;cursor:pointer;
  transition:background .2s ease,transform .2s var(--ease),box-shadow .2s ease;
}
.btn-ghost:hover{background:rgba(201,242,77,.12);color:var(--primary);transform:translateY(-2px);box-shadow:0 0 18px rgba(201,242,77,.22)}
.btn-line{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid transparent;padding-bottom:2px;transition:color .2s ease,border-color .2s ease;
}
.btn-line:hover{color:var(--primary);border-bottom-color:var(--primary)}
.btn-main:disabled,.btn-ghost:disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed}

/* ---------- 徽章 / 标签 ---------- */
.badge-x{
  display:inline-block;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700;
  color:var(--primary);background:rgba(201,242,77,.12);border:1px solid var(--line-glow);
  letter-spacing:.02em;line-height:1.6;
}
.badge-accent{color:var(--accent);background:rgba(255,92,54,.12);border-color:rgba(255,92,54,.4)}

/* ---------- 标题 ---------- */
.h1-x{font-size:clamp(34px,5vw,62px);font-weight:900;line-height:1.08;letter-spacing:-.02em}
.h2-x{font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.2;letter-spacing:-.015em}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .sub{font-size:14px;color:var(--text-2);margin-top:10px;max-width:620px;line-height:1.7}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--primary);text-transform:uppercase;margin-bottom:14px;font-variant-numeric:tabular-nums}
@media(max-width:767px){.section-head{flex-direction:column;align-items:flex-start;margin-bottom:28px}}

/* ---------- Hero ---------- */
.hero{position:relative;padding:clamp(46px,6vw,86px) 0 clamp(56px,7vw,100px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-copy{max-width:640px}
.hero-copy .h1-x{margin-bottom:20px}
.hero-sub{font-size:17px;line-height:1.7;color:var(--text-2);max-width:520px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;align-items:stretch;border-top:1px solid var(--line);padding-top:22px}
.hero-stat{padding-right:28px;margin-right:28px;border-right:1px solid var(--line)}
.hero-stat:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-stat b{display:block;font-size:20px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.hero-stat span{font-size:13px;color:var(--text-3)}
@media(max-width:575px){
  .hero-stats{flex-direction:column;gap:14px}
  .hero-stat{border-right:0;padding-right:0;margin-right:0;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:0}
  .hero-stat:last-child{border-bottom:0;padding-bottom:0}
}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-glow);box-shadow:var(--sh)}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,0) 42%,rgba(11,13,12,.82) 100%),
             linear-gradient(90deg,rgba(11,13,12,.5) 0%,rgba(11,13,12,0) 60%);
}
.hero-visual-cap{
  position:absolute;left:22px;bottom:18px;z-index:2;
  font-size:13px;font-weight:700;color:var(--text);letter-spacing:.02em;
}
.hero-glow-line{height:2px;width:120px;background:var(--primary);box-shadow:0 0 16px rgba(201,242,77,.7);transition:width .35s var(--ease)}
.hero:hover .hero-glow-line{width:100%}
@media(max-width:991px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:767px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual img{aspect-ratio:16/10}
}

/* ---------- 合集目录 ---------- */
.toc-grid{display:grid;grid-template-columns:270px 1fr;gap:56px;align-items:start}
.toc-side .h2-x{margin-bottom:14px}
.toc-side p{font-size:14px;color:var(--text-2);line-height:1.75}
.toc-side .toc-tip{margin-top:22px;font-size:13px;color:var(--text-3);border-left:3px solid var(--primary);padding-left:12px}
.toc-item a{display:flex;align-items:center;gap:24px;min-height:72px;padding:10px 0;border-bottom:1px solid var(--line);transition:transform .3s var(--ease)}
.toc-item:first-child a{border-top:1px solid var(--line)}
.toc-item a:hover{transform:translateX(6px)}
.toc-num{font-size:28px;font-weight:800;color:var(--text-3);min-width:56px;font-variant-numeric:tabular-nums;letter-spacing:-.02em;transition:color .25s ease}
.toc-item a:hover .toc-num{color:var(--primary);text-shadow:0 0 16px rgba(201,242,77,.5)}
.toc-title{flex:1;font-size:17px;font-weight:700;color:var(--text);line-height:1.45}
.toc-arrow{font-size:16px;color:var(--text-3);transition:color .25s ease,transform .25s ease}
.toc-item a:hover .toc-arrow{color:var(--primary);transform:translateX(4px)}
@media(max-width:991px){.toc-grid{grid-template-columns:1fr;gap:28px}}
@media(max-width:575px){.toc-num{font-size:14px;min-width:34px}.toc-title{font-size:15px}}

/* ---------- 卡片 ---------- */
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s ease,box-shadow .3s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-glow);box-shadow:var(--sh-h)}
.post-card-media{display:block;overflow:hidden;background:var(--surface-2)}
.post-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover .post-card-media img{transform:scale(1.04)}
.post-card-body{padding:22px;display:flex;flex-direction:column;flex:1;gap:12px}
.post-card-title{font-size:19px;font-weight:800;line-height:1.4;letter-spacing:-.01em}
.post-card-title a{color:var(--text)}
.post-card-title a:hover{color:var(--primary)}
.post-card-excerpt{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.post-card-foot time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.read-link{font-size:13px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:5px}
.read-link span{transition:transform .25s var(--ease)}
.post-card:hover .read-link span{transform:translateX(4px)}
.card-wide .post-card-media img{aspect-ratio:16/10}
.card-wide .post-card-title{font-size:22px}
.card-tall .post-card-media img{aspect-ratio:4/3}
.card-tall .post-card-title{font-size:24px}

.feat-row-1{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.feat-row-2{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px;align-items:start}
@media(max-width:991px){
  .feat-row-1{grid-template-columns:1fr 1fr}
  .feat-row-2{grid-template-columns:repeat(2,1fr)}
  .card-tall .post-card-title{font-size:20px}
}
@media(max-width:575px){
  .feat-row-1{grid-template-columns:1fr}
  .feat-row-2{grid-template-columns:1fr}
  .card-wide .post-card-title,.card-tall .post-card-title{font-size:19px}
}

/* ---------- 专题封面 ---------- */
.spotlight-inner{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:clamp(32px,5vw,64px);
}
.spotlight-inner::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,10,9,.94) 0%,rgba(8,10,9,.78) 48%,rgba(8,10,9,.5) 100%)}
.spotlight-copy{position:relative;z-index:2;max-width:620px}
.spotlight-copy h2{font-size:clamp(24px,3vw,38px);font-weight:900;line-height:1.18;letter-spacing:-.02em;margin:16px 0 14px}
.spotlight-copy p{font-size:15px;line-height:1.8;color:var(--text-2)}
.spotlight-play{
  position:relative;z-index:2;flex-shrink:0;width:76px;height:76px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;font-size:22px;
  color:var(--primary);border:1px solid var(--line-glow);background:rgba(201,242,77,.08);
  box-shadow:0 0 26px rgba(201,242,77,.24);
  transition:transform .25s var(--ease),box-shadow .25s ease,background .25s ease;
}
.spotlight-play:hover{transform:scale(1.06);background:rgba(201,242,77,.16);box-shadow:0 0 40px rgba(201,242,77,.45);color:var(--primary)}
@media(max-width:767px){.spotlight-inner{flex-direction:column;align-items:flex-start}.spotlight-play{width:60px;height:60px;font-size:18px}}

/* ---------- 最新信息（CMS 区） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:991px){.news-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media(max-width:575px){.news-grid{grid-template-columns:1fr;gap:16px}}
.news-item{
  display:flex;flex-direction:column;gap:12px;padding:24px 22px 20px;
  background:var(--surface);border:1px solid var(--line);border-left:2px solid rgba(201,242,77,.28);
  border-radius:var(--r-sm);transition:transform .3s var(--ease),border-color .3s ease,box-shadow .3s ease;
}
.news-item:hover{transform:translateY(-4px);border-color:var(--line-glow);border-left-color:var(--primary);box-shadow:var(--sh-h)}
.news-title{font-size:17px;font-weight:800;line-height:1.5}
.news-title a{color:var(--text)}
.news-title a:hover{color:var(--primary)}
.news-excerpt{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.news-cat{color:var(--primary);font-weight:700}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--r-sm);background:rgba(255,255,255,.02);
}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:20px}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rec-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:transform .3s var(--ease),border-color .3s ease}
.rec-card:hover{transform:translateY(-4px);border-color:var(--line-glow)}
.rec-card img{aspect-ratio:16/10;width:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rec-card:hover img{transform:scale(1.04)}
.rec-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px}
.rec-body h3{font-size:15px;font-weight:700;line-height:1.5;color:var(--text)}
.rec-body time{font-size:13px;color:var(--text-3)}
@media(max-width:991px){.rec-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:575px){.rec-grid{grid-template-columns:1fr}}

/* ---------- 收藏 / 分享 ---------- */
.share-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px clamp(22px,4vw,40px);
}
.share-bar h3{font-size:20px;font-weight:800;letter-spacing:-.01em;margin-bottom:6px}
.share-bar p{font-size:14px;color:var(--text-2)}
.share-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.icon-row{display:flex;gap:10px;margin-top:12px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:14px;font-weight:700;background:transparent;
  transition:border-color .25s ease,color .25s ease,box-shadow .25s ease,transform .25s var(--ease);
}
.icon-btn:hover{border-color:var(--line-glow);color:var(--primary);box-shadow:0 0 18px rgba(201,242,77,.32);transform:translateY(-2px)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:700;line-height:1.6;
  padding:22px 48px 22px 0;box-shadow:none;border:0;
}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent;box-shadow:none}
.accordion-button:focus{box-shadow:none;border:0}
.accordion-button::after{
  background-image:none;content:"";position:absolute;right:6px;top:50%;
  width:9px;height:9px;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:translateY(-70%) rotate(45deg);transition:transform .24s var(--ease),border-color .24s ease;
}
.accordion-button:not(.collapsed)::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--primary)}
.accordion-body{padding:0 60px 24px 0;font-size:15px;line-height:1.75;color:var(--text-2)}
.accordion-body strong{color:var(--text)}
.accordion-collapse{border-left:3px solid transparent;transition:border-color .25s ease}
.accordion-collapse.show,.accordion-collapse.collapsing{border-left-color:var(--primary)}
@media(max-width:575px){.accordion-body{padding-right:20px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);border-top:1px solid var(--line-nav);padding:clamp(48px,6vw,80px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-name{font-size:18px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-2);margin-top:16px;max-width:330px}
.footer-col h4{font-size:14px;font-weight:800;color:var(--text);letter-spacing:.06em;margin-bottom:18px}
.footer-col li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);line-height:1.7}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:clamp(40px,5vw,60px);border-top:1px solid var(--line);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom a{font-size:13px;color:var(--text-3)}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: article */
:root{
  --bg:#0B0D0C;
  --bg-deep:#080A09;
  --surface:#141816;
  --surface-2:#1B211E;
  --brand:#C9F24D;
  --brand-deep:#9FD41F;
  --accent:#FF5C36;
  --text:#F4F2EA;
  --muted:#A8B0A6;
  --faint:#6E7A6E;
  --line:rgba(255,255,255,.08);
  --line-brand:rgba(201,242,77,.35);
  --glow:0 0 0 1px rgba(201,242,77,.5),0 0 18px rgba(201,242,77,.28);
  --shadow-s:0 8px 24px rgba(0,0,0,.35);
  --shadow-l:0 16px 40px rgba(0,0,0,.5);
  --r-s:16px;
  --r-l:20px;
  --r-pill:999px;
  --gap:24px;
  --bs-body-bg:transparent;
  --bs-body-color:#F4F2EA;
  --bs-primary:#C9F24D;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-link-color:#C9F24D;
  --bs-link-hover-color:#9FD41F;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--brand)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(201,242,77,.28);color:#fff}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:992px){.container-x{padding:0 32px}}

/* ============ 阅读进度 ============ */
.read-progress{position:fixed;top:0;left:0;right:0;height:2px;background:transparent;z-index:220;display:none}
.read-progress span{display:block;height:100%;width:0;background:var(--brand);box-shadow:0 0 12px rgba(201,242,77,.6);transition:width .1s linear}
@media(min-width:992px){.read-progress{display:block}}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(201,242,77,.18);
  transition:background-color .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{background:rgba(8,10,9,.96);box-shadow:0 10px 30px rgba(0,0,0,.45);border-bottom-color:rgba(201,242,77,.42)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
@media(max-width:991px){.header-inner{height:56px}}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-dot{width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 14px rgba(201,242,77,.75);flex:none}
.brand-name{color:var(--brand);font-size:19px;font-weight:900}
.brand-tail{color:var(--text);font-size:15px;font-weight:600;opacity:.86}
@media(max-width:575px){.brand-tail{display:none}.brand-name{font-size:18px}}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link-x{
  position:relative;display:inline-flex;align-items:center;
  height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--muted);
}
.nav-link-x::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-1px;height:2px;
  background:var(--brand);border-radius:2px;transition:left .24s ease,right .24s ease;
}
.nav-link-x:hover{color:var(--text)}
.nav-link-x.active{color:var(--brand);text-shadow:0 0 14px rgba(201,242,77,.35)}
.nav-link-x.active::after{left:14px;right:14px}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--brand);color:#0B0D0C;font-weight:700;font-size:15px;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease;
}
.btn-main:hover{background:#D6FA63;color:#0B0D0C;transform:translateY(-2px);box-shadow:0 0 22px rgba(201,242,77,.45)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  border:1px solid var(--line-brand);color:var(--brand);font-weight:700;font-size:15px;background:transparent;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{background:rgba(201,242,77,.12);color:var(--brand);transform:translateY(-2px);box-shadow:var(--glow)}
.btn-link-x{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.28);padding-bottom:2px;
}
.btn-link-x:hover{color:var(--brand);border-bottom-color:var(--brand)}
.header-cta{margin-left:14px;height:42px;font-size:14px}
.nav-cta{display:none}
.nav-toggle{display:none;width:44px;height:44px;margin-left:auto;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:12px;border:1px solid var(--line)}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:991px){
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .nav-cta{display:inline-flex;margin-top:26px;width:100%}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
    background:#0F1211;border-left:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:84px 26px 36px;margin-left:0;
    transform:translateX(102%);transition:transform .34s cubic-bezier(.2,.7,.3,1);
    z-index:110;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link-x{height:auto;font-size:20px;font-weight:700;padding:14px 0 14px 14px;border-left:2px solid transparent;border-radius:0;color:var(--text)}
  .nav-link-x::after{display:none}
  .nav-link-x.active{color:var(--brand);border-left-color:var(--brand);background:rgba(201,242,77,.05)}
}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0}
.breadcrumb-x{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb-x a{color:var(--muted)}
.breadcrumb-x a:hover{color:var(--brand)}
.breadcrumb-x .sep{color:var(--faint)}
.breadcrumb-x .current{color:var(--brand);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-head{padding:26px 0 40px;border-bottom:1px solid var(--line)}
.article-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand);
  border:1px solid var(--line-brand);background:rgba(201,242,77,.12);
  padding:6px 12px;border-radius:6px;
}
.article-head h1{
  margin-top:20px;
  font-size:clamp(30px,4.2vw,52px);
  font-weight:900;letter-spacing:-.02em;line-height:1.12;
  max-width:880px;
}
.head-rule{width:120px;height:2px;background:var(--brand);border-radius:2px;margin:24px 0;transition:width .4s ease}
.article-head:hover .head-rule{width:200px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--muted)}
.meta-row .divider{width:1px;height:12px;background:var(--line)}
.meta-row .meta-strong{color:var(--text);font-weight:600}

/* ============ 文章布局 ============ */
.article-section{padding:clamp(40px,5vw,72px) 0 clamp(56px,7vw,104px)}
.article-layout{display:block}
.article-main{max-width:780px;margin:0 auto;min-width:0}
@media(min-width:1200px){
  .article-layout{display:flex;justify-content:center;gap:64px}
  .article-main{margin:0;flex:1 1 780px;max-width:780px}
  .article-side{display:block;width:260px;flex:none}
}
.article-side{display:none}
.side-card{
  position:sticky;top:92px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-s);
  padding:22px 20px;box-shadow:var(--shadow-s);
}
.side-card h2{font-size:13px;letter-spacing:.14em;color:var(--faint);font-weight:700;text-transform:uppercase}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto}
.toc-link{
  display:block;font-size:14px;line-height:1.6;color:var(--muted);
  padding:9px 10px 9px 12px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.toc-link:hover{color:var(--text);background:rgba(255,255,255,.03);transform:translateX(4px)}
.toc-link.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(201,242,77,.06)}

/* ============ 正文排版 ============ */
.article-body{font-size:17px;line-height:1.9;color:#E7E5DC}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;margin:48px 0 16px;padding-left:14px;
  font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.3;color:var(--text);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;background:var(--brand);border-radius:2px;box-shadow:0 0 12px rgba(201,242,77,.55)}
.article-body h3{margin:32px 0 12px;font-size:20px;font-weight:700;color:var(--text)}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:700;color:var(--text)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(201,242,77,.4)}
.article-body a:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep)}
.article-body strong{color:#fff;font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;
  border-left:3px solid var(--brand);border-radius:0 14px 14px 0;
  background:rgba(255,255,255,.03);color:var(--muted);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.8}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand)}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc,decimal-leading-zero);position:absolute;left:0;top:0;
  font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.02em;
}
.article-body img{border-radius:14px;border:1px solid var(--line);margin:24px 0 10px;width:100%}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:8px}
.article-body pre{
  background:var(--surface-2);border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#D9E4C6;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;color:#DCF29A}
.article-body pre code{background:none;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body thead th{background:var(--surface-2);color:var(--brand);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-body tbody tr:last-child td{border-bottom:0}

/* ============ 空态 ============ */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-s);
  padding:48px 28px;text-align:center;box-shadow:var(--shadow-s);
}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;border:1px solid var(--line-brand);display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:22px;background:rgba(201,242,77,.08)}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ============ 标签与分享 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.badge-x{
  display:inline-flex;align-items:center;
  padding:8px 10px;border-radius:6px;font-size:12px;font-weight:600;
  color:var(--brand);border:1px solid var(--line-brand);background:rgba(201,242,77,.12);
}
.badge-x.plain{color:var(--muted);border-color:var(--line);background:rgba(255,255,255,.04)}

.share-bar{
  margin-top:28px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-s);
  padding:20px 22px;display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;
}
.share-bar .share-text{font-size:15px;color:var(--muted)}
.share-bar .share-text strong{color:var(--text);font-weight:700}
.share-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.icon-round{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:15px;transition:border-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.icon-round:hover{color:var(--brand);border-color:var(--line-brand);box-shadow:0 0 16px rgba(201,242,77,.28);transform:translateY(-2px)}
.btn-mini{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;background:var(--brand);color:#0B0D0C;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.btn-mini:hover{background:#D6FA63;color:#0B0D0C;transform:translateY(-2px);box-shadow:0 0 20px rgba(201,242,77,.42)}
.btn-mini.ghost{background:transparent;color:var(--brand);border:1px solid var(--line-brand)}
.btn-mini.ghost:hover{background:rgba(201,242,77,.12);color:var(--brand)}

/* ============ 相关推荐 ============ */
.related-block{margin-top:clamp(48px,6vw,88px)}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.block-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.01em}
.block-head .block-sub{font-size:14px;color:var(--muted);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:991px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:575px){.related-grid{grid-template-columns:1fr}}
.card-x{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-s);overflow:hidden;
  box-shadow:var(--shadow-s);transition:transform .3s cubic-bezier(.2,.7,.3,1),border-color .3s ease,box-shadow .3s ease;
  height:100%;
}
.card-x:hover{transform:translateY(-4px);border-color:var(--line-brand);box-shadow:var(--shadow-l)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1)}
.card-x:hover .card-media img{transform:scale(1.04)}
.card-body{padding:18px 18px 16px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:10px;border-top:1px solid var(--line);font-size:13px;color:var(--faint)}
.card-foot .read{color:var(--brand);font-weight:700}

/* ============ CTA 横条 ============ */
.cta-strip{
  margin-top:clamp(48px,6vw,88px);
  background:linear-gradient(90deg,rgba(201,242,77,.10),rgba(255,92,54,.06) 65%,transparent);
  border:1px solid var(--line-brand);border-radius:var(--r-l);
  padding:clamp(26px,3.4vw,40px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
.cta-strip h2{font-size:clamp(20px,2.4vw,28px);font-weight:800;line-height:1.35}
.cta-strip p{font-size:15px;color:var(--muted);margin-top:8px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid rgba(201,242,77,.22);padding:clamp(48px,6vw,80px) 0 26px;margin-top:clamp(56px,7vw,104px)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr}}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--muted);max-width:340px}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--muted)}
.footer-col li a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--faint);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#0B0D0C;
  --bg-deep:#080A09;
  --surface:#141816;
  --surface-2:#1B211E;
  --primary:#C9F24D;
  --primary-deep:#9FD41F;
  --accent:#FF5C36;
  --text:#F4F2EA;
  --text-2:#A8B0A6;
  --text-3:#6E7A6E;
  --line:rgba(255,255,255,.08);
  --line-neon:rgba(201,242,77,.35);
  --glow:0 0 0 1px rgba(201,242,77,.5),0 0 18px rgba(201,242,77,.28);
  --r-sm:16px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:#C9F24D;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-link-color:#C9F24D;
  --bs-link-hover-color:#9FD41F;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -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(--primary)}
button,input{font-family:inherit}
::selection{background:rgba(201,242,77,.3);color:#0B0D0C}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container-x{max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:992px){.container-x{padding:0 32px}}

h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.2;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(201,242,77,.18);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(8,10,9,.97);
  border-bottom-color:rgba(201,242,77,.42);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
@media(max-width:991px){.header-inner{height:56px}}
.brand{display:flex;align-items:center;gap:8px;font-weight:900;letter-spacing:-.02em;flex-shrink:0}
.brand-dot{width:10px;height:10px;border-radius:3px;background:var(--primary);box-shadow:0 0 12px rgba(201,242,77,.7);flex-shrink:0}
.brand-name{color:var(--primary);font-size:19px}
.brand-tail{color:var(--text);font-size:15px;font-weight:700}
@media(max-width:520px){.brand-tail{display:none}}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link-x{
  position:relative;display:inline-flex;align-items:center;
  height:44px;padding:0 16px;font-size:15px;font-weight:600;
  color:var(--text-2);border-radius:10px;
}
.nav-link-x::after{
  content:"";position:absolute;left:50%;bottom:6px;width:0;height:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(201,242,77,.8);
  transform:translateX(-50%);transition:width .24s ease;
}
.nav-link-x:hover{color:var(--text)}
.nav-link-x:hover::after{width:26px}
.nav-link-x.active{color:var(--primary);text-shadow:0 0 14px rgba(201,242,77,.45)}
.nav-link-x.active::after{width:34px}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;border-radius:var(--r-pill);
  background:var(--primary);color:#0B0D0C;font-size:15px;font-weight:700;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-main:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 22px rgba(201,242,77,.5);color:#0B0D0C}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--primary);color:var(--primary);
  font-size:15px;font-weight:700;cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{background:rgba(201,242,77,.12);transform:translateY(-2px);color:var(--primary)}
.btn-text{color:var(--text-2);font-weight:700;border-bottom:1px solid var(--line);padding-bottom:2px}
.btn-text:hover{color:var(--primary);border-bottom-color:var(--primary)}
.nav-cta{margin-left:12px;height:42px;padding:0 20px;font-size:14px}
.header-cta{display:none;margin-left:auto}
@media(max-width:991px){.header-cta{display:none}}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  background:transparent;border:1px solid var(--line);border-radius:12px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:991px){
  .nav-links{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--bg-deep);padding:24px 20px 40px;
    transform:translateX(102%);transition:transform .32s var(--ease);
    overflow-y:auto;border-top:1px solid var(--line);
  }
  .nav-links.open{transform:none}
  .nav-link-x{font-size:20px;height:auto;padding:16px 0 16px 16px;border-left:3px solid transparent;border-radius:0}
  .nav-link-x::after{display:none}
  .nav-link-x.active{border-left-color:var(--primary);background:rgba(201,242,77,.06)}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:clamp(56px,7vw,104px) 0 clamp(40px,5vw,72px);
  background-image:linear-gradient(90deg,rgba(11,13,12,.96) 0%,rgba(11,13,12,.82) 48%,rgba(11,13,12,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;background-repeat:no-repeat;
  border-bottom:1px solid var(--line);
}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:20px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb span.now{color:var(--primary)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:6px;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--primary);border:1px solid var(--line-neon);background:rgba(201,242,77,.12);
}
.cat-hero h1{
  font-size:clamp(32px,4.6vw,56px);
  font-weight:900;letter-spacing:-.025em;line-height:1.1;
  margin:22px 0 18px;max-width:16em;
}
.cat-hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:34em;line-height:1.85}
.hero-meta{display:flex;flex-wrap:wrap;gap:0;margin-top:32px;border-top:1px solid var(--line);max-width:620px}
.hero-meta div{
  flex:1 1 0;min-width:130px;padding:18px 18px 0 0;border-right:1px solid var(--line);
}
.hero-meta div:last-child{border-right:0}
.hero-meta b{display:block;font-size:24px;font-weight:900;color:var(--primary);letter-spacing:-.02em}
.hero-meta i{font-style:normal;font-size:13px;color:var(--text-3)}
.hero-line{width:120px;height:2px;background:var(--primary);box-shadow:0 0 14px rgba(201,242,77,.7);margin-top:36px;transition:width .35s var(--ease)}
.cat-hero:hover .hero-line{width:220px}

/* ---------- tabs ---------- */
.tab-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.tab-x{
  display:inline-flex;align-items:center;height:44px;padding:0 22px;
  border-radius:var(--r-pill);font-size:14px;font-weight:700;
  color:var(--text-2);border:1px solid var(--line);background:transparent;
  transition:all .2s ease;
}
.tab-x:hover{color:var(--primary);border-color:var(--line-neon)}
.tab-x.is-current{background:var(--primary);border-color:var(--primary);color:#0B0D0C;box-shadow:0 0 20px rgba(201,242,77,.35)}

/* ---------- sections ---------- */
.sec{padding:clamp(56px,7vw,104px) 0}
.sec-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:clamp(28px,4vw,48px);flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:800}
.sec-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:44em}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--primary);text-transform:uppercase;margin-bottom:12px}

/* ---------- numbered directory ---------- */
.dir-list{border-top:1px solid var(--line)}
.dir-item{
  display:flex;align-items:center;gap:20px;
  padding:22px 4px;min-height:72px;border-bottom:1px solid var(--line);
  transition:transform .3s var(--ease),background .3s ease;
}
.dir-item:hover{transform:translateX(6px);background:rgba(255,255,255,.02)}
.dir-num{font-size:28px;font-weight:900;color:var(--text-3);min-width:56px;letter-spacing:-.03em;transition:color .3s ease}
.dir-item:hover .dir-num{color:var(--primary)}
.dir-body{flex:1;min-width:0}
.dir-body h3{font-size:17px;font-weight:700}
.dir-body p{font-size:14px;color:var(--text-3);margin-top:6px;line-height:1.7}
.dir-arrow{color:var(--text-3);font-size:16px;transition:color .3s ease,transform .3s ease}
.dir-item:hover .dir-arrow{color:var(--primary);transform:translateX(4px)}
@media(max-width:575px){
  .dir-num{font-size:16px;min-width:34px}
  .dir-item{gap:12px;padding:18px 2px}
}

/* ---------- cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media(max-width:991px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:575px){.grid-2,.grid-3{grid-template-columns:1fr;gap:18px}}
.stagger-grid > *:nth-child(even){margin-top:56px}
@media(max-width:767px){.stagger-grid > *:nth-child(even){margin-top:0}}

.card-x{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .3s var(--ease),border-color .3s ease,box-shadow .3s ease;
}
.card-x:hover{transform:translateY(-4px);border-color:var(--line-neon);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card-x:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(11,13,12,.6) 100%)}
.card-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:8px 10px;border-radius:6px;font-size:12px;font-weight:700;
  color:var(--primary);border:1px solid var(--line-neon);background:rgba(11,13,12,.78);
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;font-weight:700;line-height:1.45}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.card-foot .go{color:var(--primary);font-weight:700}
.card-foot .go i{transition:transform .3s ease;margin-left:4px}
.card-x:hover .card-foot .go i{transform:translateX(4px)}

/* feature card */
.feature-card{
  display:grid;grid-template-columns:7fr 5fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);
  transition:border-color .3s ease,box-shadow .3s ease;
}
.feature-card:hover{border-color:var(--line-neon);box-shadow:var(--shadow-hover)}
.feature-media{position:relative;min-height:340px;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 40%,rgba(20,24,22,.85) 100%)}
.feature-body{padding:clamp(28px,3.4vw,44px);display:flex;flex-direction:column;gap:18px;justify-content:center}
.feature-body h3{font-size:clamp(22px,2.2vw,28px);font-weight:800}
.feature-body p{font-size:15px;color:var(--text-2);line-height:1.85}
.feature-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag-x{padding:6px 12px;border-radius:6px;font-size:12px;font-weight:700;color:var(--text-2);border:1px solid var(--line);background:var(--surface-2)}
@media(max-width:991px){
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:240px}
  .feature-media::after{background:linear-gradient(180deg,transparent 45%,rgba(20,24,22,.85) 100%)}
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
@media(max-width:991px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:575px){.steps{grid-template-columns:1fr}}
.step-x{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:26px 22px;position:relative;overflow:hidden;
  transition:border-color .3s ease,transform .3s var(--ease);
}
.step-x:hover{border-color:var(--line-neon);transform:translateY(-4px)}
.step-x .idx{font-size:13px;font-weight:800;color:var(--primary);letter-spacing:.14em}
.step-x h3{font-size:17px;font-weight:700;margin:14px 0 10px}
.step-x p{font-size:14px;color:var(--text-2);line-height:1.8}
.step-x::after{content:"";position:absolute;left:22px;top:0;width:34px;height:2px;background:var(--primary);box-shadow:0 0 12px rgba(201,242,77,.6)}

/* ---------- faq ---------- */
.faq{max-width:900px}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq .accordion-button{
  background:transparent;border:0;box-shadow:none;
  color:var(--text);font-size:16px;font-weight:700;
  padding:22px 44px;position:relative;
}
.faq .accordion-button:not(.collapsed){color:var(--primary);background:rgba(201,242,77,.04)}
.faq .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--primary);border-radius:2px;box-shadow:0 0 12px rgba(201,242,77,.6);
}
.faq .accordion-button::after{
  content:"";position:absolute;right:20px;top:50%;
  width:9px;height:9px;margin-top:-6px;background:none;
  border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);transition:transform .24s ease,border-color .24s ease;
}
.faq .accordion-button:not(.collapsed)::after{border-color:var(--primary);transform:rotate(-135deg);margin-top:-2px}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.faq .accordion-body{padding:4px 44px 26px;color:var(--text-2);font-size:15px;line-height:1.85}
@media(max-width:575px){
  .faq .accordion-button{padding:18px 36px 18px 16px}
  .faq .accordion-body{padding:2px 16px 22px}
}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(90deg,rgba(201,242,77,.09) 0%,rgba(20,24,22,.9) 40%,rgba(11,13,12,.98) 100%),var(--surface);
  border:1px solid var(--line-neon);border-radius:var(--r-lg);
  padding:clamp(28px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:12px;max-width:40em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid rgba(201,242,77,.2);padding:clamp(48px,6vw,80px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;margin-top:18px;max-width:34em}
.footer-col h4{font-size:15px;font-weight:800;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important;transition-duration:.01ms !important}
}

/* roulang page: category2 */
:root{
  --bg:#0B0D0C;
  --bg-deep:#080A09;
  --surface:#141816;
  --surface-2:#1B211E;
  --main:#C9F24D;
  --main-dark:#9FD41F;
  --accent:#FF5C36;
  --text:#F4F2EA;
  --text-2:#A8B0A6;
  --text-3:#6E7A6E;
  --border:rgba(255,255,255,.08);
  --border-main:rgba(201,242,77,.35);
  --glow:0 0 0 1px rgba(201,242,77,.5),0 0 18px rgba(201,242,77,.28);
  --sh:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 16px 40px rgba(0,0,0,.5);
  --r-sm:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:72px;--sp-9:96px;
  --bs-body-bg:#0B0D0C;
  --bs-body-color:#F4F2EA;
  --bs-primary:#C9F24D;
  --bs-primary-rgb:201,242,77;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-link-color:#C9F24D;
  --bs-link-hover-color:#9FD41F;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--main);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;}
::selection{background:rgba(201,242,77,.3);color:#fff;}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:992px){.container-x{padding-left:32px;padding-right:32px;}}
@media(min-width:992px) and (max-width:1199px){.container-x{max-width:1140px;}}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(11,13,12,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(201,242,77,.18);
  transition:background-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(8,10,9,.96);box-shadow:0 10px 30px rgba(0,0,0,.55);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;white-space:nowrap;}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--main);box-shadow:0 0 12px rgba(201,242,77,.85);flex:none;}
.brand-name{color:var(--main);font-size:19px;letter-spacing:-.03em;line-height:1;}
.brand-tail{color:var(--text-2);font-size:13px;font-weight:600;line-height:1;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link-x{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 14px;min-height:40px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);font-weight:600;white-space:nowrap;
}
.nav-link-x:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link-x.active{color:var(--main);text-shadow:0 0 14px rgba(201,242,77,.45);}
.nav-link-x.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--main);border-radius:2px;box-shadow:0 0 10px rgba(201,242,77,.8);
  transform-origin:center;animation:navLine .24s ease both;
}
@keyframes navLine{from{transform:scaleX(0);}to{transform:scaleX(1);}}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;border-radius:var(--r-pill);
  background:var(--main);color:#0B0D0C;font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background-color .2s ease,color .2s ease;
}
.btn-main:hover{color:#0B0D0C;background:var(--main);filter:brightness(1.06);box-shadow:0 0 22px rgba(201,242,77,.45);transform:translateY(-2px);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--border-main);color:var(--main);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{color:var(--main);background:rgba(201,242,77,.12);transform:translateY(-2px);}
.header-cta{height:40px;padding:0 20px;font-size:14px;flex:none;}
.nav-cta{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:12px;
  background:var(--surface);cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;flex:none;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 分类首屏 ============ */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border);}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.34;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,13,12,.97) 0%,rgba(11,13,12,.86) 46%,rgba(11,13,12,.42) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding-top:clamp(56px,7vw,104px);padding-bottom:clamp(40px,5vw,72px);}
.cat-hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;}
@media(min-width:768px){.cat-hero-grid{grid-template-columns:1fr 1fr;gap:44px;}}
@media(min-width:992px){.cat-hero-grid{grid-template-columns:7fr 5fr;gap:56px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid var(--border-main);background:rgba(201,242,77,.1);
  color:var(--main);font-size:12px;font-weight:700;letter-spacing:.06em;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--main);box-shadow:0 0 10px rgba(201,242,77,.9);}
.cat-hero h1{
  margin-top:24px;
  font-size:clamp(34px,5vw,62px);font-weight:900;line-height:1.08;letter-spacing:-.02em;
}
.cat-hero h1 em{font-style:normal;color:var(--main);}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:560px;}
.hero-note{margin-top:12px;font-size:14px;color:var(--text-3);}
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.tab-x{
  display:inline-flex;align-items:center;min-height:44px;
  padding:0 22px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:rgba(255,255,255,.02);
  color:var(--text-2);font-size:14px;font-weight:700;
  transition:all .2s ease;
}
.tab-x:hover{color:var(--text);border-color:var(--border-main);}
.tab-x.active{background:var(--main);border-color:var(--main);color:#0B0D0C;box-shadow:0 0 20px rgba(201,242,77,.32);}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border-main);box-shadow:var(--sh);}
.hero-media img{width:100%;height:clamp(240px,38vw,400px);object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,13,12,.88) 0%,rgba(11,13,12,.12) 58%,rgba(11,13,12,0) 100%);
}
.hero-media-cap{
  position:absolute;left:20px;bottom:18px;z-index:2;
  font-size:13px;font-weight:700;color:var(--text);
  display:inline-flex;align-items:center;gap:8px;
}
.hero-media-cap::before{content:"";width:14px;height:2px;background:var(--main);border-radius:2px;box-shadow:0 0 10px rgba(201,242,77,.8);}
.hero-line{position:relative;height:2px;width:120px;background:var(--main);border-radius:2px;box-shadow:0 0 16px rgba(201,242,77,.6);transition:width .4s cubic-bezier(.2,.7,.3,1);margin-top:36px;}
.cat-hero:hover .hero-line{width:260px;}

/* ============ 板块通用 ============ */
.section{padding-top:clamp(56px,7vw,104px);padding-bottom:clamp(56px,7vw,104px);}
.section-line{border-top:1px solid var(--border);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.2;}
.section-title span{color:var(--main);}
.section-desc{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--text-2);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-more:hover{color:var(--main);border-bottom-color:var(--main);}
.link-more svg{width:14px;height:14px;flex:none;transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(4px);}

.badge-x{
  display:inline-flex;align-items:center;
  padding:6px 10px;border-radius:6px;
  border:1px solid var(--border-main);background:rgba(201,242,77,.12);
  color:var(--main);font-size:12px;font-weight:700;letter-spacing:.02em;line-height:1.2;
}
.badge-hot{border-color:rgba(255,92,54,.45);background:rgba(255,92,54,.14);color:var(--accent);}
.card-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
.meta-sep{width:1px;height:12px;background:var(--border);display:inline-block;}

/* ============ 特色大卡 ============ */
.feature-card{
  display:grid;grid-template-columns:1fr;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease,border-color .3s ease;
}
@media(min-width:768px){.feature-card{grid-template-columns:1.05fr .95fr;}}
@media(min-width:992px){.feature-card{grid-template-columns:7fr 5fr;}}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--border-main);}
.feature-media{display:block;overflow:hidden;background:var(--surface-2);}
.feature-media img{width:100%;height:100%;min-height:260px;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1);}
.feature-card:hover .feature-media img{transform:scale(1.04);}
.feature-body{padding:clamp(24px,3vw,40px);display:flex;flex-direction:column;justify-content:center;gap:16px;}
.feature-body h2{font-size:clamp(22px,2.4vw,30px);line-height:1.28;}
.feature-body p{font-size:15px;color:var(--text-2);line-height:1.85;}
.point-list{display:grid;gap:8px;}
.point-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.75;}
.point-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;background:var(--main);border-radius:2px;box-shadow:0 0 8px rgba(201,242,77,.6);}

/* ============ 时间轴 + 侧栏 ============ */
.cat-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:44px;}
@media(min-width:1200px){.cat-layout{grid-template-columns:minmax(0,1fr) 336px;gap:56px;}}
.timeline{position:relative;display:grid;gap:0;}
.tl-item{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding-bottom:24px;}
.tl-item:last-child{padding-bottom:0;}
.tl-rail{position:relative;display:flex;justify-content:center;}
.tl-rail::before{content:"";position:absolute;top:40px;bottom:-24px;width:1px;background:linear-gradient(to bottom,rgba(201,242,77,.28),rgba(255,255,255,.06));}
.tl-item:last-child .tl-rail::before{display:none;}
.tl-num{
  position:relative;z-index:2;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--surface-2);border:1px solid var(--border);
  font-size:13px;font-weight:800;color:var(--text-3);
  transition:color .25s ease,border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.tl-item:hover .tl-num{color:var(--main);border-color:var(--border-main);box-shadow:0 0 16px rgba(201,242,77,.28);transform:scale(1.05);}
.tl-body{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);
  padding:24px 26px;display:flex;flex-direction:column;gap:12px;
  transition:transform .3s cubic-bezier(.2,.7,.3,1),border-color .3s ease,box-shadow .3s ease,background-color .3s ease;
}
.tl-item:hover .tl-body{transform:translateX(6px);border-color:var(--border-main);background:var(--surface-2);box-shadow:var(--sh);}
.tl-body h3{font-size:19px;line-height:1.45;}
.tl-body p{font-size:15px;color:var(--text-2);line-height:1.85;}
.tl-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:4px;}
.tl-tags{display:flex;gap:8px;flex-wrap:wrap;}
.tag-mini{padding:4px 10px;border-radius:var(--r-pill);border:1px solid var(--border);background:rgba(255,255,255,.03);font-size:12px;color:var(--text-3);}

.cat-side{display:none;}
@media(min-width:1200px){
  .cat-side{display:block;position:sticky;top:88px;align-self:start;display:grid;gap:20px;}
}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);padding:22px;}
.side-card h4{font-size:15px;letter-spacing:.02em;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h4::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--main);box-shadow:0 0 10px rgba(201,242,77,.7);}
.side-list{display:grid;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 0;font-size:14px;color:var(--text-2);border-bottom:1px solid var(--border);
}
.side-list li:last-child a{border-bottom:0;}
.side-list a:hover{color:var(--main);}
.side-list a svg{width:13px;height:13px;flex:none;opacity:.6;}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--border);}
.stat-row:last-child{border-bottom:0;}
.stat-label{font-size:13px;color:var(--text-3);}
.stat-value{font-size:15px;font-weight:800;color:var(--main);letter-spacing:-.01em;}

/* ============ FAQ ============ */
.faq-wrap{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0 24px 0;background:transparent;border:0;text-align:left;
  color:var(--text);font-size:16px;font-weight:700;line-height:1.6;cursor:pointer;
  position:relative;transition:color .2s ease,padding-left .2s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;
  background:var(--main);box-shadow:0 0 12px rgba(201,242,77,.6);
  opacity:0;transition:opacity .2s ease;
}
.faq-item.open .faq-q{color:var(--main);padding-left:16px;}
.faq-item.open .faq-q::before{opacity:1;}
.faq-ico{
  position:relative;width:22px;height:22px;flex:none;border-radius:50%;
  border:1px solid var(--border-main);transition:transform .24s ease,background-color .24s ease;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--main);border-radius:1px;
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:10px;height:2px;}
.faq-ico::after{width:2px;height:10px;transition:opacity .2s ease;}
.faq-item.open .faq-ico{transform:rotate(180deg);background:rgba(201,242,77,.12);}
.faq-item.open .faq-ico::after{opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-in{overflow:hidden;}
.faq-a p{padding:0 0 26px 16px;font-size:15px;line-height:1.75;color:var(--text-2);max-width:760px;}

/* ============ CTA ============ */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:clamp(28px,4vw,44px);position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(to bottom,var(--main),rgba(201,242,77,0));
}
.cta-text h3{font-size:clamp(20px,2.2vw,26px);line-height:1.35;}
.cta-text p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid rgba(201,242,77,.18);margin-top:clamp(56px,7vw,104px);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding:clamp(44px,6vw,72px) 0 40px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px 32px;}}
@media(min-width:992px){.footer-grid{grid-template-columns:2.2fr 1fr 1fr 1.3fr;gap:48px;}}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:360px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:grid;gap:12px;}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--text-2);}
.footer-col li a:hover{color:var(--main);}
.footer-bottom{
  border-top:1px solid var(--border);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:991.98px){
  .nav-links{
    position:fixed;top:64px;right:0;bottom:0;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:0;
    padding:20px 20px 40px;
    background:rgba(8,10,9,.98);
    border-left:1px solid var(--border);
    transform:translateX(101%);
    transition:transform .3s cubic-bezier(.2,.7,.3,1);
    overflow-y:auto;z-index:999;
  }
  .nav-links.open{transform:translateX(0);box-shadow:-20px 0 60px rgba(0,0,0,.6);}
  .nav-link-x{
    font-size:20px;font-weight:700;padding:16px 0 16px 16px;
    border-radius:0;border-left:2px solid transparent;border-bottom:1px solid var(--border);
    min-height:58px;
  }
  .nav-link-x.active{border-left-color:var(--main);background:rgba(201,242,77,.06);}
  .nav-link-x.active::after{display:none;}
  .nav-cta{
    display:inline-flex;margin-top:24px;width:100%;height:48px;
  }
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  body.nav-open{overflow:hidden;}
}
@media (max-width:767.98px){
  .header-inner{height:56px;}
  .nav-links{top:56px;}
  .brand-tail{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .tl-item{grid-template-columns:36px minmax(0,1fr);gap:12px;}
  .tl-num{width:32px;height:32px;font-size:12px;}
  .tl-rail::before{top:34px;}
  .tl-body{padding:20px;border-radius:14px;}
  .feature-body{padding:22px;}
  .faq-q{font-size:15px;padding:20px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto;}
}
@media (max-width:575.98px){
  .cat-hero h1{font-size:32px;}
  .hero-line{margin-top:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}