/* roulang page: index */
:root{
  --stage:#0F0E11;
  --carbon:#1A191E;
  --line:#26242B;
  --line-soft:#3A3843;
  --cream:#F5F1E6;
  --white:#FFFFFF;
  --orange:#FF6A2B;
  --orange-dark:#D94E12;
  --lime:#C6F24E;
  --text:#F3F1EC;
  --muted:#A9A7B2;
  --ink:#17161A;
  --ink-muted:#5C5A63;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
  --shadow-dark:inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-light:0 12px 32px rgba(23,22,26,.08);
  --shadow-light-hover:0 18px 44px rgba(23,22,26,.14);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--stage);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.95;
  letter-spacing:0;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--orange)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3;font-weight:800}
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(--lime);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
.mono{font-family:var(--font-mono);letter-spacing:.02em}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(15,14,17,.98);
  border-bottom:1px solid var(--line);transition:height .22s var(--ease);
}
.nav-wrap{position:relative;display:flex;align-items:center;justify-content:space-between;height:76px;transition:height .22s var(--ease)}
.site-header.is-compact .nav-wrap{height:64px}
.nav-group{display:flex;align-items:center;gap:24px}
.nav-group.left{justify-content:flex-start}
.nav-group.right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:14.5px;color:var(--muted);padding:6px 0;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--orange);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--orange);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.brand{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:10px;white-space:nowrap;
}
.brand-mark{
  width:20px;height:20px;border-radius:4px;background:var(--orange);position:relative;overflow:hidden;flex:0 0 20px;
}
.brand-mark::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 38%,var(--lime) 38%,var(--lime) 58%,transparent 58%);
}
.brand-text{font-size:17px;font-weight:800;color:var(--text);letter-spacing:-.01em}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-weight:700;font-size:15px;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--orange);color:#131316}
.btn-primary:hover{background:#ff7c44;color:#131316;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-soft)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px);filter:brightness(.96)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.nav-cta{padding:11px 22px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line-soft);border-radius:var(--r-btn);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;inset:0;background:rgba(15,14,17,.99);z-index:1200;
  padding:24px;display:flex;flex-direction:column;
  transform:translateY(-100%);transition:transform .3s var(--ease);
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line-soft);border-radius:var(--r-btn);font-size:22px;line-height:1;color:var(--text)}
.drawer-body{flex:1;overflow-y:auto;padding:28px 0}
.drawer-item{
  display:flex;align-items:center;gap:16px;font-size:20px;color:var(--text);
  padding:14px 0;border-bottom:1px solid var(--line);
}
.drawer-item .idx{font-family:var(--font-mono);font-size:13px;color:var(--orange);min-width:28px}
.drawer-item.is-active{color:var(--orange)}
.drawer-foot{padding-top:20px;border-top:1px solid var(--line)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:560px;height:86vh;display:flex;align-items:center;
  background:#26242B url('/assets/images/backpic/back-1.png') center/cover no-repeat;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,14,17,.55) 0%,rgba(15,14,17,.78) 48%,rgba(15,14,17,.94) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:620px;padding:96px 0 140px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-family:var(--font-mono);
  color:var(--lime);background:rgba(198,242,78,.14);border-radius:999px;padding:6px 14px;margin-bottom:24px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:block}
.hero h1{font-size:clamp(32px,5vw,60px);line-height:1.15;font-weight:800;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero-sub{font-size:17px;line-height:1.75;color:#D6D3CE;max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-band{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(15,14,17,.72);
}
.hero-band .container{display:flex;flex-wrap:wrap}
.band-item{
  flex:1 1 0;min-width:140px;padding:20px 24px 22px 0;
}
.band-item + .band-item{padding-left:24px;border-left:1px solid rgba(255,255,255,.08)}
.band-num{font-family:var(--font-mono);font-size:22px;font-weight:700;color:var(--orange);display:block;line-height:1.2}
.band-label{font-size:12px;color:var(--muted);letter-spacing:.06em}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-dark{background:var(--stage);border-top:1px solid var(--line)}
.section-light{background:var(--cream);color:var(--ink)}
.section-light .sec-desc,.section-light .card-meta,.section-light .muted{color:var(--ink-muted)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{display:flex;align-items:center;gap:14px;font-size:clamp(24px,2.6vw,30px)}
.sec-title::before{content:"";width:4px;height:26px;background:var(--orange);border-radius:2px;flex:0 0 4px}
.sec-desc{font-size:14px;color:var(--muted);margin:10px 0 0;line-height:1.8}
.sec-link{font-size:14px;color:var(--orange);white-space:nowrap;font-weight:700}
.sec-link:hover{color:var(--orange-dark)}
.sec-index{font-family:var(--font-mono);font-size:13px;color:var(--orange);display:block;margin-bottom:10px;letter-spacing:.1em}

/* ---------- 横滑片库 ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.rail-arrows{display:flex;gap:10px}
.rail-arrow{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line-soft);
  color:var(--text);display:flex;align-items:center;justify-content:center;font-size:16px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.rail-arrow:hover{border-color:var(--orange);color:var(--orange)}
.rail-arrow:active{transform:scale(.96)}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 0 18px;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{flex:0 0 clamp(196px,22vw,268px);scroll-snap-align:start}
.rail-cover{
  position:relative;aspect-ratio:3/4;border-radius:var(--r-md);overflow:hidden;background:#26242B;
  border:1px solid var(--line);transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.rail-card:hover .rail-cover{border-color:var(--orange);transform:translateY(-4px)}
.rail-card:hover .rail-cover img{transform:scale(1.04)}
.badge{
  display:inline-flex;align-items:center;font-size:12px;line-height:1;
  padding:6px 12px;border-radius:999px;font-weight:700;letter-spacing:.02em;
}
.badge-lime{background:rgba(198,242,78,.14);color:var(--lime)}
.badge-orange{background:var(--orange);color:#131316}
.rail-cover .badge{position:absolute;top:12px;left:12px}
.dot-live{
  position:absolute;top:16px;right:16px;width:9px;height:9px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 4px rgba(198,242,78,.16);
}
.rail-foot{padding-top:14px}
.rail-title{
  font-size:15px;font-weight:700;line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rail-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-top:8px}
.rail-progress{height:2px;background:var(--line);border-radius:2px;overflow:hidden;margin-top:12px}
.rail-progress span{display:block;height:100%;width:20%;background:var(--orange);transition:width .18s linear}

/* ---------- 混排栅格 ---------- */
.mix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.mix-card{
  position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--carbon);
  border:1px solid var(--line);box-shadow:var(--shadow-dark);min-height:220px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.mix-card:hover{transform:translateY(-4px);border-color:var(--orange)}
.mix-card.big{grid-column:span 2;grid-row:span 2;min-height:464px}
.mix-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;transition:transform .3s var(--ease),opacity .3s var(--ease)}
.mix-card:hover img{transform:scale(1.05);opacity:.85}
.mix-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,14,17,.15) 0%,rgba(15,14,17,.9) 100%)}
.mix-body{position:relative;z-index:2;padding:20px;height:100%;display:flex;flex-direction:column;justify-content:flex-end}
.mix-num{position:absolute;top:18px;left:20px;z-index:3;font-family:var(--font-mono);font-size:13px;color:var(--lime);letter-spacing:.12em}
.mix-title{font-size:17px;line-height:1.5;font-weight:700}
.mix-card.big .mix-title{font-size:24px;line-height:1.4}
.mix-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-top:10px}
.mix-card.big .mix-meta{margin-top:14px}

/* ---------- 最新信息 ---------- */
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:104px 1fr auto;gap:20px;align-items:center;
  padding:22px 16px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.news-row:hover{background:var(--carbon)}
.news-date{font-family:var(--font-mono);font-size:13px;color:var(--muted)}
.news-title{font-size:18px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14px;color:var(--muted);line-height:1.8;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-arrow{color:var(--line-soft);font-size:18px;transition:color .2s var(--ease),transform .2s var(--ease)}
.news-row:hover .news-arrow{color:var(--orange);transform:translateX(4px)}
.news-cat{margin-bottom:10px}
.hot-box{background:var(--carbon);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-dark)}
.hot-box h3{font-size:17px;margin-bottom:18px}
.hot-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.hot-item:last-child{border-bottom:0;padding-bottom:0}
.hot-item .idx{font-family:var(--font-mono);font-size:13px;color:var(--orange);padding-top:4px}
.hot-item p{margin:0;font-size:14.5px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  border:1px dashed var(--line-soft);border-radius:var(--r-md);padding:56px 24px;text-align:center;background:rgba(26,25,30,.5);
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- 内容卡 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--carbon);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow-dark);transition:transform .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-4px);border-color:var(--orange)}
.card-cover{position:relative;aspect-ratio:16/10;background:#26242B;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover .badge{position:absolute;top:14px;left:14px}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:19px;line-height:1.5}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0}
.card-meta{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-top:auto}
.section-light .card{background:var(--white);border-color:#E4DFD2;box-shadow:var(--shadow-light);color:var(--ink)}
.section-light .card:hover{border-color:var(--orange);box-shadow:var(--shadow-light-hover)}
.section-light .card-text{color:var(--ink-muted)}
.section-light .card-meta{color:var(--ink-muted)}
.section-light .badge-lime{background:rgba(198,242,78,.22);color:#4B6B00}

/* 行列表版式 */
.rowlist{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.rowlist-item{
  display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.rowlist-text h3{font-size:20px;margin-bottom:12px;line-height:1.5}
.rowlist-text p{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0}
.rowlist-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.tagline{
  font-size:12.5px;color:var(--muted);border:1px solid var(--line-soft);border-radius:999px;padding:5px 12px;
}
.rowlist-cover{aspect-ratio:16/9;border-radius:var(--r-sm);overflow:hidden;background:#26242B;border:1px solid var(--line)}
.rowlist-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.rowlist-item:hover .rowlist-cover img{transform:scale(1.04)}

/* 错落卡片 */
.stagger{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.stagger .card:nth-child(4n+1) .card-cover{aspect-ratio:1/1}
.stagger .card:nth-child(4n+3) .card-cover{aspect-ratio:4/5}

/* 锚点筛选带 */
.filter-band{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:36px}
.filter-chip{
  font-size:13.5px;padding:9px 18px;border-radius:999px;border:1px solid var(--line-soft);color:var(--muted);
  transition:all .2s var(--ease);
}
.filter-chip:hover{color:var(--text);border-color:var(--orange)}
.filter-chip.is-active{background:var(--orange);color:#131316;border-color:var(--orange);font-weight:700}

/* ---------- 证据条 ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.trust-item{border-left:2px solid var(--orange);padding-left:18px}
.trust-item strong{display:block;font-family:var(--font-mono);font-size:26px;color:var(--ink);line-height:1.2}
.trust-item span{font-size:13.5px;color:var(--ink-muted);line-height:1.7;display:block;margin-top:8px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  text-align:left;padding:24px 0 24px 0;font-size:17px;font-weight:700;color:var(--text);
  transition:color .2s var(--ease),padding .2s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:-16px;top:26px;width:3px;height:0;background:var(--orange);
  transition:height .24s var(--ease);border-radius:2px;
}
.faq-item.is-open .faq-q{color:var(--cream);padding-left:14px}
.faq-item.is-open .faq-q::before{height:22px}
.faq-icon{font-family:var(--font-mono);font-size:20px;color:var(--orange);line-height:1;flex:0 0 auto}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 0 26px;font-size:15px;color:var(--muted);line-height:1.9;max-width:44em}

/* ---------- CTA ---------- */
.cta-band{background:var(--orange);color:#131316;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.cta-band h2{font-size:clamp(24px,3vw,34px);color:#131316;margin-bottom:14px}
.cta-band p{color:rgba(19,19,22,.78);font-size:15.5px;margin:0}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 240px;height:48px;border-radius:var(--r-btn);border:1px solid rgba(19,19,22,.28);
  background:rgba(255,255,255,.92);padding:0 16px;color:#17161A;
}
.cta-form input::placeholder{color:#8A8894}
.cta-form input:focus{outline:2px solid var(--lime);outline-offset:2px;border-color:transparent}
.cta-form .btn-primary{background:#131316;color:var(--cream)}
.cta-form .btn-primary:hover{background:#26242B;color:var(--cream)}
.cta-note{font-size:13px;color:rgba(19,19,22,.7);margin-top:16px}
.cta-form-msg{font-size:13.5px;margin-top:12px;color:#131316;font-weight:700;display:none}
.cta-form-msg.is-show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--stage);border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:32em}
.footer-index{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.footer-index a{display:flex;gap:12px;font-size:14px;color:var(--muted)}
.footer-index a:hover{color:var(--orange)}
.footer-index .mono{color:var(--orange)}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{display:flex;gap:12px;font-size:14px;color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease)}
.footer-links a:hover{color:var(--orange);transform:translateX(2px)}
.footer-links .mono{color:var(--orange);font-size:13px}
.footer-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.footer-form input{
  flex:1 1 160px;height:48px;border-radius:var(--r-btn);border:1px solid var(--line-soft);
  background:var(--carbon);color:var(--text);padding:0 14px;
}
.footer-form input::placeholder{color:#8A8894}
.footer-form input:focus{outline:2px solid var(--lime);outline-offset:2px}
.footer-note{font-size:12.5px;color:var(--muted);margin-top:12px;line-height:1.7}
.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(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--orange)}

/* ---------- 断点 ---------- */
@media (max-width:1399px){
  .mix-grid{gap:20px}
}
@media (max-width:1199px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .nav-group{display:none}
  .nav-toggle{display:flex}
  .brand{position:static;transform:none;margin:0 auto}
  .nav-wrap{gap:12px}
  .hero{min-height:520px;height:auto;padding-bottom:0}
  .hero-inner{padding:64px 0 120px}
  .mix-grid{grid-template-columns:repeat(2,1fr)}
  .mix-card.big{grid-column:span 2;grid-row:auto;min-height:300px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .band-item{flex:1 1 50%;padding-right:0}
  .band-item + .band-item{padding-left:0;border-left:0}
  .band-item:nth-child(2n){border-left:1px solid rgba(255,255,255,.08);padding-left:24px}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .hero{min-height:0;height:72vh}
  .hero-inner{padding:48px 0 120px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .rail-card{flex:0 0 72vw}
  .rail-arrows{display:none}
  .mix-grid{grid-template-columns:1fr}
  .mix-card.big{grid-column:auto;min-height:260px}
  .grid-3,.grid-2,.stagger{grid-template-columns:1fr}
  .rowlist-item{grid-template-columns:1fr;gap:18px}
  .rowlist-cover{order:-1}
  .news-row{grid-template-columns:1fr;gap:12px;padding:20px 12px}
  .news-arrow{display:none}
  .trust-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .band-item{flex:1 1 100%;padding:16px 0;border-left:0 !important;padding-left:0 !important}
  .band-item + .band-item{border-top:1px solid rgba(255,255,255,.08)}
  .cta-band{padding:56px 0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .rail{scroll-behavior:auto}
  .card:hover,.mix-card:hover,.rail-card:hover .rail-cover{transform:none}
  .card:hover .card-cover img,.mix-card:hover img,.rail-card:hover .rail-cover img{transform:none}
}

/* roulang page: article */
:root{
  --ink:#0F0E11;
  --ink-2:#1A191E;
  --line:#26242B;
  --line-2:#3A3843;
  --paper:#F5F1E6;
  --white:#FFFFFF;
  --brand:#FF6A2B;
  --brand-dark:#D94E12;
  --lime:#C6F24E;
  --text:#F3F1EC;
  --text-dim:#A9A7B2;
  --text-light:#17161A;
  --text-light-dim:#5C5A63;
  --body-text:#E9E6E1;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sp-2:8px;
  --sp-3:12px;
  --sp-4:16px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:48px;
  --sp-8:64px;
  --sp-9:96px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --tr:220ms cubic-bezier(.2,.7,.2,1);
  --shadow-dark:inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-light:0 12px 32px rgba(23,22,26,.08);
  --shadow-light-hover:0 18px 44px rgba(23,22,26,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.95;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
ul,ol{margin:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,14,17,.98);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(0,0,0,.45)}
.nav-wrap{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  height:76px;
  transition:height var(--tr);
}
.site-header.is-scrolled .nav-wrap{height:64px}
.nav-group{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:10px 12px;
  font-size:14px;line-height:1.4;
  color:var(--text-dim);
  transition:color var(--tr);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--tr);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.brand{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:inline-flex;align-items:center;gap:10px;
  font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--text);
  white-space:nowrap;
}
.brand-mark{
  position:relative;display:inline-block;width:20px;height:20px;border-radius:4px;
  background:var(--brand);flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;left:3px;right:3px;top:50%;height:3px;border-radius:2px;
  background:var(--lime);transform:translateY(-50%) rotate(-38deg);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  padding:14px 28px;
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;text-align:center;
  transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.btn-primary{background:var(--brand);color:#131316}
.btn-primary:hover{background:#FF7C46;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,106,43,.28)}
.btn-outline{background:transparent;color:var(--text);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn:active{transform:translateY(1px);filter:brightness(.96)}
.btn-sm{padding:10px 18px;font-size:14px}
.nav-cta{padding:11px 20px;font-size:14px;margin-left:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line-2);align-items:center;justify-content:center;
  transition:border-color var(--tr);
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;
  transition:transform var(--tr);
}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;
  display:flex;flex-direction:column;
  padding:20px 20px 28px;
  background:var(--ink);
  transform:translateY(-102%);
  transition:transform 320ms cubic-bezier(.2,.7,.2,1);
  overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line-2);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--text);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;margin-top:24px}
.drawer-nav a{
  display:flex;align-items:baseline;gap:14px;
  font-size:20px;line-height:2.4;color:var(--text);
  border-bottom:1px solid var(--line);
  transition:color var(--tr),padding-left var(--tr);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand);padding-left:4px}
.drawer-nav .mono{font-size:12px;color:var(--text-dim)}
.drawer-foot{margin-top:auto;padding-top:28px}
.drawer-foot .btn{width:100%}

/* 面包屑与文章头 */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:26px 0 0;font-size:13px;color:var(--text-dim);
}
.crumb a{transition:color var(--tr)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line-2)}
.crumb .current{color:var(--text)}
.article-head{padding:18px 0 30px;border-bottom:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-lime{background:rgba(198,242,78,.14);color:var(--lime)}
.article-head h1{
  margin:16px 0 18px;
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.35;font-weight:800;letter-spacing:-.01em;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:8px 26px;
  font-family:var(--font-mono);font-size:13px;color:var(--text-dim);
}
.meta-row span{display:inline-flex;align-items:center;gap:8px}
.meta-row em{font-style:normal;color:#6F6D79}
.meta-row .dot{width:5px;height:5px;border-radius:50%;background:var(--lime)}

/* 文章主体布局 */
.article-section{padding:36px 0 96px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;
  align-items:start;
}
.entry-cover{
  margin:0 0 40px;
  aspect-ratio:16/9;
  border-radius:var(--r-md);
  overflow:hidden;
  background:#26242B;
  border:1px solid var(--line);
}
.entry-cover img{width:100%;height:100%;object-fit:cover}
.entry-content{
  max-width:44em;
  font-size:16px;line-height:1.95;color:var(--body-text);
}
.entry-content>*:first-child{margin-top:0}
.entry-content p{margin:0 0 1.15em}
.entry-content h2{
  margin:2.4em 0 .8em;padding-left:14px;
  border-left:4px solid var(--brand);
  font-size:24px;line-height:1.4;font-weight:800;color:var(--text);
  letter-spacing:-.01em;
}
.entry-content h3{
  margin:1.8em 0 .6em;
  font-size:19px;line-height:1.5;font-weight:700;color:var(--text);
}
.entry-content h4{margin:1.6em 0 .5em;font-size:17px;font-weight:700;color:var(--text)}
.entry-content a{
  color:var(--brand);
  text-decoration:underline;
  text-decoration-thickness:2px;
  text-underline-offset:3px;
}
.entry-content a:hover{color:#FF8A57}
.entry-content ul,.entry-content ol{padding-left:1.4em;margin:0 0 1.15em}
.entry-content li{margin-bottom:.6em}
.entry-content blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--paper);color:#1F1E23;
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
}
.entry-content blockquote p:last-child{margin-bottom:0}
.entry-content img{border-radius:var(--r-sm);margin:1.6em 0;background:#26242B}
.entry-content figcaption{font-size:13px;color:var(--text-dim);text-align:center;margin-top:-1em}
.entry-content table{
  width:100%;border-collapse:collapse;margin:1.6em 0;
  font-size:15px;border:1px solid var(--line);
}
.entry-content th{
  background:var(--brand);color:#131316;font-weight:700;
  text-align:left;padding:12px 14px;
}
.entry-content td{padding:12px 14px;border-top:1px solid var(--line)}
.entry-content code{
  font-family:var(--font-mono);font-size:14px;
  background:var(--ink-2);border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;
}
.entry-foot{
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
.entry-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--line-2);
  font-size:13px;color:var(--text-dim);
  transition:border-color var(--tr),color var(--tr);
}
.tag:hover{border-color:var(--brand);color:var(--brand)}
.empty-state{
  border:1px dashed var(--line-2);
  border-radius:var(--r-md);
  padding:56px 24px;text-align:center;
  background:var(--ink-2);
}
.empty-state .empty-title{font-size:19px;font-weight:700;color:var(--text);margin-bottom:8px}
.empty-state .empty-desc{font-size:14px;color:var(--text-dim);margin-bottom:24px}

/* 侧栏 */
.entry-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--shadow-dark);
}
.side-title{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:700;color:var(--text);
  margin-bottom:16px;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand)}
.rank-list{display:flex;flex-direction:column}
.rank-list a{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;line-height:1.7;color:var(--text-dim);
  transition:color var(--tr);
}
.rank-list a:last-child{border-bottom:none;padding-bottom:0}
.rank-list a:first-child{padding-top:0}
.rank-list a:hover{color:var(--text)}
.rank-list .mono{font-size:12px;color:var(--brand);flex:0 0 auto;line-height:1.9}
.side-note{font-size:13px;line-height:1.8;color:var(--text-dim);margin-top:14px}

/* 亮底相关推荐 */
.section-paper{
  background:var(--paper);color:var(--text-light);
  padding:88px 0;
  border-top:1px solid var(--line);
}
.section-head{
  display:flex;flex-wrap:wrap;gap:20px;
  align-items:flex-end;justify-content:space-between;
  margin-bottom:36px;
}
.section-head h2{
  font-size:clamp(24px,2.8vw,30px);line-height:1.3;font-weight:800;letter-spacing:-.01em;
}
.section-head .sub{font-size:14px;color:var(--text-light-dim);margin-top:8px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--brand);
  transition:gap var(--tr);
}
.link-more:hover{gap:14px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.content-card{
  display:flex;flex-direction:column;
  background:var(--white);
  border:1px solid rgba(23,22,26,.08);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-light-hover);border-color:var(--brand)}
.content-card .cover{aspect-ratio:16/10;background:#26242B;overflow:hidden}
.content-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.content-card:hover .cover img{transform:scale(1.04)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.card-meta{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12.5px;color:var(--text-light-dim);
}
.card-meta .pill{
  font-family:var(--font-sans);font-size:12px;font-weight:600;
  background:rgba(255,106,43,.12);color:var(--brand-dark);
  padding:3px 10px;border-radius:999px;
}
.card-body h3{font-size:17px;line-height:1.55;font-weight:700;color:var(--text-light)}
.card-body p{font-size:14px;line-height:1.8;color:var(--text-light-dim)}

/* 订阅 CTA */
.cta-band{background:var(--brand);color:#131316;padding:76px 0}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.cta-band h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3;font-weight:800;letter-spacing:-.01em;margin-bottom:14px}
.cta-band p{font-size:15.5px;line-height:1.8;color:rgba(19,19,22,.82);max-width:34em}
.sub-form{display:flex;flex-wrap:wrap;gap:12px}
.sub-form input{
  flex:1 1 240px;height:48px;padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid rgba(19,19,22,.28);
  background:rgba(19,19,22,.9);
  color:var(--text);font-size:15px;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.sub-form input::placeholder{color:#8A8894}
.sub-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px var(--lime)}
.sub-form .btn-primary{background:#131316;color:var(--paper)}
.sub-form .btn-primary:hover{background:#000;box-shadow:0 12px 26px rgba(19,19,22,.3)}
.form-note{font-size:13px;line-height:1.7;color:rgba(19,19,22,.72);margin-top:14px;min-height:20px}

/* 页脚 */
.site-footer{background:var(--ink);border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:var(--text);margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-dim);margin:0 0 20px;max-width:26em}
.footer-index{display:flex;flex-direction:column}
.footer-index a{
  display:flex;align-items:baseline;gap:10px;
  padding:6px 0;font-size:13.5px;color:var(--text-dim);
  transition:color var(--tr),transform var(--tr);
}
.footer-index a:hover{color:var(--brand);transform:translateX(2px)}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin:0 0 16px}
.footer-links{display:flex;flex-direction:column}
.footer-links a{
  display:flex;align-items:baseline;gap:10px;
  padding:8px 0;font-size:14px;color:var(--text-dim);
  transition:color var(--tr),transform var(--tr);
}
.footer-links a:hover{color:var(--brand);transform:translateX(2px)}
.footer-links .mono,.footer-index .mono{font-size:12px;color:#6B6975}
.footer-form{display:flex;gap:10px;flex-wrap:wrap}
.footer-form input{
  flex:1 1 150px;height:48px;padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid var(--line-2);
  background:var(--ink-2);
  color:var(--text);font-size:15px;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.footer-form input::placeholder{color:#8A8894}
.footer-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,242,78,.45)}
.footer-note{font-size:13px;color:var(--text-dim);margin-top:12px;min-height:20px}
.footer-bottom{
  margin-top:56px;padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8A8894;
}

/* 响应式 */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:48px}
  .entry-side{position:static}
  .entry-content{max-width:none}
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .nav-group.left{display:none}
  .nav-group.right .nav-link{display:none}
  .nav-group.right .nav-cta{display:inline-flex;margin-left:0;padding:10px 16px;font-size:13.5px}
  .nav-toggle{display:inline-flex}
  .brand{position:static;transform:none;font-size:14.5px}
  .nav-wrap{height:68px;justify-content:space-between}
  .site-header.is-scrolled .nav-wrap{height:62px}
  .brand-mark{width:18px;height:18px}
  .article-section{padding:28px 0 72px}
  .section-paper{padding:64px 0}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .card-grid{grid-template-columns:1fr;gap:20px}
  .article-head h1{font-size:clamp(24px,6.4vw,32px)}
  .entry-cover{aspect-ratio:4/3;margin-bottom:32px}
  .entry-content h2{font-size:21px}
  .entry-content h3{font-size:18px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .entry-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:519.98px){
  .brand-text{max-width:132px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .btn{padding:13px 22px;font-size:14.5px}
  .article-head{padding:14px 0 24px}
  .meta-row{gap:6px 18px;font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .content-card:hover{transform:none}
  .content-card:hover .cover img{transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#0F0E11;
  --bg-soft:#1A191E;
  --line:#26242B;
  --line-2:#3A3843;
  --paper:#F5F1E6;
  --paper-card:#FFFFFF;
  --brand:#FF6A2B;
  --brand-deep:#D94E12;
  --lime:#C6F24E;
  --tx:#F3F1EC;
  --tx-2:#A9A7B2;
  --tx-dark:#17161A;
  --tx-dark-2:#5C5A63;
  --muted:#8A8894;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
  --r-sm:10px;--r-md:16px;--r-lg:20px;--r-pill:999px;
  --sh-dark:inset 0 1px 0 rgba(255,255,255,.06);
  --sh-light:0 12px 32px rgba(23,22,26,.08);
  --sh-light-h:0 18px 44px rgba(23,22,26,.14);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.95;
  color:var(--tx);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(15,14,17,.98);
  border-bottom:1px solid var(--line);
}
.site-header.shrink{box-shadow:0 10px 30px rgba(0,0,0,.35)}
.nav-wrap{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  height:76px;gap:12px;
  transition:height 220ms var(--ease);
}
.site-header.shrink .nav-wrap{height:64px}
.nav-group{display:flex;align-items:center;gap:clamp(8px,1.05vw,22px);min-width:0}
.nav-group.left{justify-content:flex-start}
.nav-group.right{justify-content:flex-end}
.nav-link{
  position:relative;
  font-size:clamp(12.5px,1.02vw,14px);
  color:var(--tx-2);
  white-space:nowrap;
  padding:6px 0;
  transition:color 200ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform 220ms var(--ease);
}
.nav-link:hover{color:var(--tx)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{transform:scaleX(1)}
.brand{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:10px;
  font-weight:800;letter-spacing:-.01em;
  color:var(--tx);white-space:nowrap;
}
.brand-text{font-size:17px}
.brand-mark{
  width:20px;height:20px;border-radius:4px;background:var(--brand);
  position:relative;flex:0 0 20px;overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;left:-4px;top:8px;width:28px;height:2.5px;
  background:var(--lime);transform:rotate(-45deg);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:700;line-height:1;
  padding:14px 28px;border-radius:var(--r-sm);
  border:1px solid transparent;cursor:pointer;
  transition:transform 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease),color 200ms var(--ease);
}
.btn-primary{background:var(--brand);color:#131316;border-color:var(--brand)}
.btn-primary:hover{background:#ff7d45;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);background:var(--brand-deep)}
.btn-ghost{background:transparent;color:var(--tx);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--brand);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:13px;border-radius:8px}
.btn:disabled,.btn.disabled{opacity:.45;cursor:not-allowed;transform:none}
.nav-cta{padding:11px 20px;font-size:13px;white-space:nowrap}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-2);background:transparent;position:relative;
  cursor:pointer;flex:0 0 44px;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:20px;height:2px;background:var(--tx);border-radius:2px;
  transition:transform 200ms var(--ease),opacity 160ms var(--ease);
  content:"";
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-6px;left:0;transform:none}
.nav-toggle span::after{top:6px;left:0;transform:none}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:1060;
  background:#0F0E11;
  display:flex;flex-direction:column;
  transform:translateY(-102%);
  transition:transform 320ms var(--ease);
  padding:20px 24px 28px;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line-2);
  background:transparent;color:var(--tx);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;padding:20px 0;flex:1}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;
  font-size:20px;line-height:2.4;color:var(--tx);
  border-bottom:1px solid rgba(38,36,43,.7);
  transition:color 180ms var(--ease),padding-left 180ms var(--ease);
}
.drawer-nav a .mono{font-size:13px;color:var(--muted)}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand);padding-left:6px}
.drawer-foot{padding-top:20px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ---------- 区块 ---------- */
.section{padding:96px 0}
.section--dark{background:var(--bg);color:var(--tx);border-top:1px solid var(--line)}
.section--paper{background:var(--paper);color:var(--tx-dark)}
.section--soft{background:var(--bg-soft);border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .h-group{max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.h2{
  position:relative;
  font-size:clamp(24px,2.3vw,30px);
  line-height:1.3;font-weight:800;letter-spacing:-.01em;
  padding-left:16px;
}
.h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  background:var(--brand);border-radius:2px;
}
.section-sub{margin-top:12px;font-size:14px;line-height:1.8;color:var(--tx-2)}
.section--paper .section-sub{color:var(--tx-dark-2)}
.link-more{
  font-size:14px;font-weight:700;color:var(--brand);white-space:nowrap;
  border-bottom:2px solid transparent;transition:border-color 200ms var(--ease)
}
.link-more:hover{border-bottom-color:var(--brand)}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:flex-end;
  padding:72px 0 44px;
  background:
    linear-gradient(to top,rgba(15,14,17,.96) 0%,rgba(15,14,17,.72) 48%,rgba(15,14,17,.34) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat,
    #26242B;
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.crumb a{color:var(--tx-2);transition:color 180ms var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line-2)}
.page-hero h1{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.3;font-weight:800;letter-spacing:-.01em;
  max-width:820px;
}
.page-hero .hero-desc{
  margin-top:14px;max-width:660px;
  font-size:16px;line-height:1.85;color:#D6D3CE;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;
  padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
}
.hero-facts span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--tx-2);
}
.hero-facts .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:0 0 8px}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:8px 0 0;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line-2);background:transparent;
  color:var(--tx-2);font-size:13.5px;font-weight:600;cursor:pointer;
  transition:all 200ms var(--ease);
}
.chip:hover{color:var(--tx);border-color:var(--brand)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#131316}

/* ---------- 卡片栅格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 18px 40px rgba(0,0,0,.42)}
.card-media{position:relative;aspect-ratio:4/5;background:#26242B;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-badge{
  position:absolute;top:12px;left:12px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(198,242,78,.14);color:var(--lime);
  font-size:12px;font-weight:600;backdrop-filter:blur(2px);
}
.card-dot{
  position:absolute;top:16px;right:16px;width:9px;height:9px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 4px rgba(198,242,78,.14);
}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{
  font-size:17px;line-height:1.5;font-weight:700;color:var(--tx);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-text{
  font-size:13.5px;line-height:1.8;color:var(--tx-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--mono);font-size:12px;color:var(--muted);
}
.is-hidden{display:none !important}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step{
  background:var(--paper-card);
  border-radius:var(--r-md);
  padding:28px 24px;
  box-shadow:var(--sh-light);
  border:1px solid rgba(23,22,26,.06);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-light-h)}
.step-no{
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:.08em;
}
.step h3{margin-top:14px;font-size:19px;line-height:1.5;font-weight:700;color:var(--tx-dark)}
.step p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--tx-dark-2)}
.step-tag{
  display:inline-block;margin-top:16px;
  font-size:12px;font-weight:600;color:#131316;background:var(--lime);
  padding:4px 10px;border-radius:6px;
}

/* ---------- 表格 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-soft);
}
table.issue-table{width:100%;border-collapse:collapse}
.issue-table th,.issue-table td{
  padding:18px 20px;text-align:left;font-size:14px;line-height:1.75;
  border-bottom:1px solid var(--line);vertical-align:top;
}
.issue-table thead th{
  background:var(--brand);color:#131316;font-weight:700;font-size:13.5px;
  border-bottom:1px solid var(--brand);white-space:nowrap;
}
.issue-table tbody tr:last-child td{border-bottom:none}
.issue-table tbody tr{transition:background 200ms var(--ease)}
.issue-table tbody tr:hover{background:#1F1E24}
.issue-table td:first-child{color:var(--tx);font-weight:600}
.issue-table td{color:var(--tx-2)}
.issue-table td .mono{color:var(--lime);font-size:12.5px}

/* ---------- 提醒条 ---------- */
.notice{
  display:flex;align-items:flex-start;gap:14px;
  margin-top:28px;padding:20px 24px;
  border:1px dashed var(--line-2);border-radius:var(--r-md);
  background:rgba(26,25,30,.6);
}
.notice .mono{color:var(--lime);font-size:12px;padding-top:4px}
.notice p{font-size:14px;line-height:1.85;color:var(--tx-2)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid rgba(23,22,26,.14)}
.faq-item{border-bottom:1px solid rgba(23,22,26,.14);position:relative}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);opacity:0;transition:opacity 220ms var(--ease);
}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 12px 24px 16px;text-align:left;
  font-family:inherit;font-size:17.5px;font-weight:700;line-height:1.6;
  color:var(--tx-dark);
  transition:color 200ms var(--ease),padding-left 220ms var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-item.open .faq-q{padding-left:24px}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform 240ms var(--ease),opacity 240ms var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 240ms var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{
  padding:0 40px 26px 24px;font-size:15px;line-height:1.95;color:var(--tx-dark-2);
}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand);color:#131316;padding:80px 0}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:800;letter-spacing:-.01em}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(19,19,22,.78)}
.cta-form{display:flex;flex-direction:column;gap:14px}
.cta-row{display:flex;gap:12px}
.cta-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:#17161A;border:1px solid #17161A;color:var(--tx);
  font-size:15px;font-family:inherit;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.cta-form input::placeholder{color:#8A8894}
.cta-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,242,78,.5)}
.cta-form .btn{background:#17161A;color:var(--paper);border-color:#17161A}
.cta-form .btn:hover{background:#000;transform:translateY(-1px)}
.cta-note{font-size:13px;color:rgba(19,19,22,.7)}
.form-msg{font-size:13px;color:#131316;font-weight:600;min-height:18px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg);border-top:1px solid var(--line);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--tx);font-size:17px}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.9;color:var(--tx-2);max-width:32em}
.footer-title{font-size:14px;font-weight:700;color:var(--tx);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{
  display:inline-flex;align-items:center;gap:10px;
  font-size:14px;color:var(--tx-2);
  transition:color 200ms var(--ease),transform 200ms var(--ease);
}
.footer-links a .mono{font-size:12px;color:var(--muted)}
.footer-links a:hover{color:var(--brand);transform:translateX(2px)}
.footer-index{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.footer-index a{
  display:inline-flex;align-items:center;gap:10px;font-size:13.5px;color:var(--tx-2);
  transition:color 200ms var(--ease)
}
.footer-index a:hover{color:var(--brand)}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--bg-soft);border:1px solid var(--line-2);color:var(--tx);
  font-size:14px;font-family:inherit;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.footer-form input::placeholder{color:var(--muted)}
.footer-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,242,78,.35)}
.footer-note{margin-top:10px;font-size:13px;color:var(--lime);min-height:18px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 26px;
  font-size:13px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
  .footer-grid>div:last-child{grid-column:1/-1}
}
@media (max-width:991px){
  .nav-group{display:none}
  .nav-toggle{display:block}
  .brand-text{font-size:15.5px}
  .nav-wrap{height:64px}
  .nav-group.left,.nav-group.right{display:none}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .section{padding:64px 0}
  .page-hero{padding:56px 0 36px;min-height:280px}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .page-hero h1{font-size:26px}
  .hero-actions .btn{width:100%}
  .issue-table th,.issue-table td{padding:14px 14px}
  .table-wrap{overflow-x:auto}
  table.issue-table{min-width:560px}
  .cta-row{flex-direction:column}
  .cta-row .btn{width:100%}
  .faq-q{font-size:16px;padding:20px 8px 20px 14px}
  .faq-a-inner p{padding:0 20px 22px 20px}
}
@media (max-width:519px){
  .page-hero{min-height:240px;padding:44px 0 30px}
  .hero-facts{gap:8px}
  .brand-text{font-size:14.5px}
  .card-media{aspect-ratio:16/11}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .card:hover{transform:none}
  .card:hover .card-media img{transform:none}
}

/* roulang page: category2 */
:root{
  --stage:#0F0E11;
  --coal:#1A191E;
  --line:#26242B;
  --paper:#F5F1E6;
  --paper-2:#FFFFFF;
  --paper-line:#E4DED0;
  --orange:#FF6A2B;
  --orange-dark:#D94E12;
  --lime:#C6F24E;
  --text-dark:#F3F1EC;
  --text-sub:#A9A7B2;
  --ink:#17161A;
  --ink-sub:#5C5A63;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --r-xs:6px;
  --shadow-card:0 12px 32px rgba(23,22,26,.08);
  --shadow-hover:0 18px 44px rgba(23,22,26,.14);
  --ease:220ms cubic-bezier(.2,.7,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.95;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:4px;
}
.mono{font-family:var(--mono);letter-spacing:.02em;}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  padding:14px 28px;
  font-size:15px;
  font-weight:700;
  line-height:1;
  cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--orange);color:#131316;}
.btn-primary:hover{background:#FF7C44;color:#131316;transform:translateY(-1px);}
.btn-primary:active{background:var(--orange-dark);transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--text-dark);border-color:#3A3843;}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-dark{background:#131316;color:var(--paper);}
.btn-dark:hover{background:#232228;transform:translateY(-1px);}
.btn-dark:active{transform:translateY(1px);}
.btn-sm{padding:10px 16px;font-size:13.5px;border-radius:8px;}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(15,14,17,.99);
  border-bottom:1px solid var(--line);
  transition:height var(--ease),background-color var(--ease);
}
.nav-wrap{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:76px;
  transition:height var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:64px;}
.nav-group{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:8px 10px;
  font-size:13.5px;
  font-weight:600;
  color:#C9C6D0;
  border-radius:6px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:10px;
  right:10px;
  bottom:0;
  height:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--text-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--orange);}
.nav-link.active::after{transform:scaleX(1);}
.nav-cta{padding:11px 20px;font-size:13.5px;white-space:nowrap;}
.brand{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:16px;
  letter-spacing:-.01em;
  color:var(--text-dark);
  white-space:nowrap;
}
.brand-mark{
  width:20px;
  height:20px;
  border-radius:4px;
  background:var(--orange);
  position:relative;
  flex:0 0 20px;
  overflow:hidden;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:-6px;
  top:8px;
  width:32px;
  height:4px;
  background:var(--lime);
  transform:rotate(-38deg);
}
.brand:hover{color:var(--text-dark);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid #3A3843;
  border-radius:10px;
  background:transparent;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color var(--ease);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  display:block;
  width:18px;
  height:2px;
  background:var(--text-dark);
  border-radius:2px;
  transition:transform var(--ease);
}
.nav-toggle span{position:relative;}
.nav-toggle span::before,
.nav-toggle span::after{content:"";position:absolute;left:0;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle:hover{border-color:var(--orange);}

/* 移动抽屉 */
.drawer{background:var(--stage);color:var(--text-dark);border-left:1px solid var(--line);width:min(92vw,420px);}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.drawer .offcanvas-header .brand-text{font-weight:800;font-size:16px;}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.8);opacity:.75;}
.drawer .btn-close:hover{opacity:1;}
.drawer .offcanvas-body{display:flex;flex-direction:column;justify-content:space-between;padding:18px 24px 26px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-link{
  display:flex;
  align-items:baseline;
  gap:14px;
  padding:14px 4px;
  font-size:20px;
  line-height:2.4;
  color:#D8D5DF;
  border-bottom:1px solid var(--line);
}
.drawer-link .mono{font-size:13px;color:var(--lime);}
.drawer-link:hover,.drawer-link.active{color:var(--orange);}
.drawer-foot{margin-top:26px;}

/* ============ Hero ============ */
.hero-banner{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:flex-end;
  background:var(--stage);
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-media{
  position:absolute;
  inset:0;
  background-color:#26242B;
  background-image:linear-gradient(180deg,rgba(15,14,17,.55) 0%,rgba(15,14,17,.82) 55%,rgba(15,14,17,.96) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
}
.hero-inner{position:relative;z-index:2;padding-top:96px;padding-bottom:52px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  letter-spacing:.12em;
  color:var(--lime);
  text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--orange);}
.hero-banner h1{
  max-width:820px;
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-dark);
}
.hero-sub{
  margin-top:16px;
  max-width:560px;
  font-size:17px;
  line-height:1.75;
  color:#D6D3CE;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--paper);border-bottom:1px solid var(--paper-line);}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:18px 0;
  font-size:13px;
  color:var(--ink-sub);
}
.crumb a{color:var(--ink-sub);}
.crumb a:hover{color:var(--orange);}
.crumb .sep{color:#B9B2A3;}
.crumb .current{color:var(--ink);font-weight:600;}

/* ============ 通用板块 ============ */
.sec{padding:96px 0;}
.sec-paper{background:var(--paper);}
.sec-stage{background:var(--stage);color:var(--text-dark);}
.sec-stage + .sec-stage{border-top:1px solid var(--line);}
.sec-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:44px;
}
.sec-title{
  position:relative;
  padding-left:18px;
  font-size:clamp(24px,2.4vw,30px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.01em;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:.18em;
  bottom:.18em;
  width:4px;
  border-radius:2px;
  background:var(--orange);
}
.sec-stage .sec-title{color:var(--text-dark);}
.sec-desc{margin-top:12px;padding-left:18px;font-size:14px;line-height:1.8;color:var(--ink-sub);max-width:46em;}
.sec-stage .sec-desc{color:var(--text-sub);}
.sec-more{
  font-size:14px;
  font-weight:700;
  color:var(--ink-sub);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
}
.sec-more:hover{color:var(--orange);border-bottom-color:var(--orange);}
.sec-stage .sec-more{color:var(--text-sub);}
.sec-stage .sec-more:hover{color:var(--orange);}

/* ============ 目录 + 时间轴 分栏 ============ */
.split-grid{
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:36px;
  align-items:start;
}
.toc-card{
  position:sticky;
  top:104px;
  background:var(--paper-2);
  border:1px solid var(--paper-line);
  border-radius:var(--r-md);
  padding:26px 22px;
  box-shadow:var(--shadow-card);
}
.toc-title{
  font-size:13px;
  font-weight:800;
  letter-spacing:.12em;
  color:var(--ink-sub);
  text-transform:uppercase;
  margin-bottom:16px;
}
.toc-list{display:flex;flex-direction:column;}
.toc-item{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:11px 10px 11px 14px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-sub);
  border-left:3px solid transparent;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease),transform var(--ease);
}
.toc-item .mono{font-size:12.5px;color:#A79F8E;}
.toc-item:hover{color:var(--ink);background:#FAF7EE;transform:translateX(2px);}
.toc-item.active{color:var(--orange);border-left-color:var(--orange);background:#FDF6EE;}
.toc-item.active .mono{color:var(--orange);}
.toc-note{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--paper-line);
  font-size:13px;
  line-height:1.8;
  color:var(--ink-sub);
}

.timeline{border-top:1px solid var(--paper-line);}
.tl-item{
  display:grid;
  grid-template-columns:64px minmax(0,1fr) 46px;
  gap:20px;
  align-items:start;
  padding:26px 6px;
  border-bottom:1px solid var(--paper-line);
  transition:background-color var(--ease);
}
.tl-item:hover{background:#FBF8F0;}
.tl-num{
  font-family:var(--mono);
  font-size:15px;
  font-weight:700;
  color:var(--orange);
  padding-top:3px;
}
.tl-title{
  font-size:18px;
  line-height:1.5;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.tl-desc{
  margin-top:8px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--ink-sub);
  max-width:44em;
}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  line-height:1.6;
  background:rgba(198,242,78,.16);
  color:#4A5A12;
  border:1px solid rgba(120,150,30,.28);
}
.tag-orange{background:rgba(255,106,43,.14);color:var(--orange-dark);border-color:rgba(255,106,43,.3);}
.tag-mono{font-family:var(--mono);background:#EFEADE;color:var(--ink-sub);border-color:var(--paper-line);}
.tl-arrow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid var(--paper-line);
  color:var(--ink-sub);
  font-size:16px;
  transition:border-color var(--ease),color var(--ease),transform var(--ease);
}
.tl-item:hover .tl-arrow{border-color:var(--orange);color:var(--orange);transform:translateX(2px);}

/* ============ 指标条 ============ */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--stage);
}
.metric{
  padding:34px 26px;
  border-right:1px solid var(--line);
  transition:background-color var(--ease);
}
.metric:last-child{border-right:0;}
.metric:hover{background:var(--coal);}
.metric-num{
  font-family:var(--mono);
  font-size:26px;
  font-weight:700;
  color:var(--lime);
  letter-spacing:.02em;
}
.metric-num small{font-size:13px;color:var(--text-sub);margin-left:4px;font-weight:600;}
.metric-label{margin-top:8px;font-size:12.5px;line-height:1.7;color:var(--text-sub);}

/* ============ 专题卡 ============ */
.topic-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.topic-card{
  display:flex;
  flex-direction:column;
  background:var(--coal);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.topic-card:hover{transform:translateY(-4px);border-color:var(--orange);}
.topic-cover{
  position:relative;
  aspect-ratio:16/9;
  background:#26242B;
  overflow:hidden;
}
.topic-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 320ms cubic-bezier(.2,.7,.2,1);
}
.topic-card:hover .topic-cover img{transform:scale(1.04);}
.topic-badge{
  position:absolute;
  left:14px;
  top:14px;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  background:rgba(198,242,78,.9);
  color:#1D2405;
}
.topic-body{padding:22px 22px 24px;}
.topic-head{display:flex;align-items:baseline;gap:12px;}
.topic-idx{
  font-family:var(--mono);
  font-size:13px;
  color:var(--orange);
  font-weight:700;
}
.topic-title{
  font-size:19px;
  line-height:1.5;
  font-weight:700;
  color:var(--text-dark);
  letter-spacing:-.01em;
}
.topic-text{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--text-sub);
}
.topic-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--text-sub);
}
.topic-foot .mono{color:#CFCBC0;}
.topic-link{font-size:13px;font-weight:700;color:var(--orange);}
.topic-link:hover{color:#FF8146;}

/* ============ FAQ ============ */
.faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--paper-line);
}
.faq .accordion-item:first-child{border-top:1px solid var(--paper-line);}
.faq .accordion-header{margin:0;}
.faq .accordion-button{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:24px 6px 24px 16px;
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  text-align:left;
  transition:color var(--ease),background-color var(--ease);
}
.faq .accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:22px;
  bottom:22px;
  width:3px;
  border-radius:2px;
  background:var(--orange);
  opacity:0;
  transition:opacity var(--ease);
}
.faq .accordion-button::after{display:none;}
.faq .accordion-button:not(.collapsed){color:var(--orange-dark);}
.faq .accordion-button:not(.collapsed)::before{opacity:1;}
.faq .accordion-button:hover{color:var(--orange);}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:-2px;}
.faq-icon{
  position:relative;
  flex:0 0 20px;
  width:20px;
  height:20px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq .accordion-button:not(.collapsed) .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq .accordion-body{
  padding:0 6px 26px 16px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-sub);
  max-width:46em;
}
.faq .accordion-body a{color:var(--orange-dark);border-bottom:2px solid rgba(255,106,43,.4);}
.faq .accordion-body a:hover{color:var(--orange);}

/* ============ CTA ============ */
.cta-band{
  background:var(--orange);
  color:#131316;
  border-top:1px solid rgba(19,19,22,.12);
  border-bottom:1px solid rgba(19,19,22,.12);
}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,480px);
  gap:48px;
  align-items:center;
  padding:76px 0;
}
.cta-title{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:800;letter-spacing:-.01em;}
.cta-text{margin-top:14px;font-size:15.5px;line-height:1.85;color:rgba(19,19,22,.78);max-width:34em;}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1 1 auto;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid rgba(19,19,22,.24);
  background:rgba(255,255,255,.86);
  color:#131316;
  font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.cta-form input::placeholder{color:#7A7166;}
.cta-form input:focus{
  background:#fff;
  border-color:#131316;
  box-shadow:0 0 0 2px var(--lime);
  outline:none;
}
.cta-note{margin-top:14px;font-size:13px;line-height:1.7;color:rgba(19,19,22,.68);}
.cta-msg{margin-top:10px;font-size:13px;font-weight:700;color:#131316;min-height:20px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--stage);
  color:var(--text-dark);
  border-top:1px solid var(--line);
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--text-dark);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-sub);max-width:30em;}
.footer-title{
  font-size:13px;
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:#CFCBC0;
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:14px;
  color:var(--text-sub);
  transition:color var(--ease),transform var(--ease);
}
.footer-links a .mono{font-size:12px;color:#6F6D7A;}
.footer-links a:hover{color:var(--orange);transform:translateX(2px);}
.footer-index{display:flex;flex-wrap:wrap;gap:16px;margin-top:22px;}
.footer-index a{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  font-size:13.5px;
  color:var(--text-sub);
}
.footer-index a .mono{font-size:12px;color:#6F6D7A;}
.footer-index a:hover{color:var(--orange);}
.footer-form{display:flex;gap:10px;margin-top:6px;}
.footer-form input{
  flex:1 1 auto;
  min-width:0;
  height:48px;
  padding:0 14px;
  border-radius:var(--r-sm);
  border:1px solid #3A3843;
  background:var(--coal);
  color:var(--text-dark);
  font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-form input::placeholder{color:#8A8894;}
.footer-form input:focus{border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,242,78,.35);outline:none;}
.footer-note{margin-top:10px;font-size:13px;color:var(--lime);min-height:18px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:#8A8894;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-link{font-size:12.5px;padding:8px 7px;}
  .nav-cta{font-size:12.5px;padding:10px 14px;}
  .brand{font-size:15px;}
}
@media (max-width:1199px){
  .split-grid{grid-template-columns:250px minmax(0,1fr);gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  .container{padding-left:20px;padding-right:20px;}
  .nav-wrap{height:64px;}
  .site-header.is-scrolled .nav-wrap{height:60px;}
  .nav-group.left{display:none;}
  .nav-group.right .nav-link{display:none;}
  .nav-group.right{gap:0;}
  .nav-toggle{display:inline-flex;order:-1;}
  .brand{font-size:14px;gap:8px;}
  .brand-mark{width:18px;height:18px;flex:0 0 18px;}
  .hero-banner{min-height:300px;}
  .hero-inner{padding-top:76px;padding-bottom:44px;}
  .split-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .toc-card{position:static;}
  .toc-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:6px;scroll-snap-type:x proximity;}
  .toc-item{
    flex:0 0 auto;
    white-space:nowrap;
    border-left:0;
    border-bottom:3px solid transparent;
    padding:8px 12px;
    scroll-snap-align:start;
  }
  .toc-item.active{border-left-color:transparent;border-bottom-color:var(--orange);}
  .toc-note{display:none;}
  .sec{padding:72px 0;}
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric{border-bottom:1px solid var(--line);}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-child(n+3){border-bottom:0;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px;padding:64px 0;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding-left:16px;padding-right:16px;}
  .sec{padding:56px 0;}
  .sec-head{margin-bottom:30px;}
  .topic-grid{grid-template-columns:minmax(0,1fr);}
  .tl-item{grid-template-columns:46px minmax(0,1fr) 36px;gap:14px;padding:22px 2px;}
  .tl-arrow{width:36px;height:36px;font-size:14px;}
  .tl-title{font-size:17px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:34px;padding-bottom:40px;}
  .footer-form{flex-direction:column;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-banner h1{font-size:24px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .metric-strip{grid-template-columns:minmax(0,1fr);}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:nth-child(n+3){border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .sec-title{font-size:22px;}
  .faq .accordion-button{font-size:15.5px;padding:20px 4px 20px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .topic-card:hover{transform:none;}
  .topic-card:hover .topic-cover img{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg:#0F0E11;
  --bg-alt:#1A191E;
  --line:#26242B;
  --line-soft:#3A3843;
  --paper:#F5F1E6;
  --card-light:#FFFFFF;
  --accent:#FF6A2B;
  --accent-dark:#D94E12;
  --lime:#C6F24E;
  --text:#F3F1EC;
  --text-dim:#A9A7B2;
  --ink:#17161A;
  --ink-dim:#5C5A63;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-xs:6px;
  --sh-dark:inset 0 1px 0 rgba(255,255,255,.06);
  --sh-light:0 12px 32px rgba(23,22,26,.08);
  --sh-light-hover:0 18px 44px rgba(23,22,26,.14);
  --ease:220ms cubic-bezier(.2,.7,.2,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.95;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.mono{font-family:var(--font-mono);letter-spacing:.02em}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(15,14,17,.98);
  border-bottom:1px solid var(--line);
  transition:height var(--ease);
}
.site-header .container{max-width:1240px}
.nav-wrap{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:76px;
  transition:height var(--ease);
}
.site-header.is-compact .nav-wrap{height:64px}
.nav-group{display:flex;align-items:center;gap:22px}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-dim);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--accent)}
.nav-link.active::after{transform:scaleX(1)}
.brand{
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  letter-spacing:-.01em;
  color:var(--text);
  white-space:nowrap;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:20px;height:20px;
  border-radius:4px;
  background:var(--accent);
  position:relative;
  flex:0 0 20px;
  overflow:hidden;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,transparent 42%,var(--lime) 42%,var(--lime) 62%,transparent 62%);
}
.nav-cta{font-size:14px;padding:10px 18px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-soft);
  border-radius:var(--r-btn);
  background:transparent;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:18px;height:2px;
  background:var(--text);
  transform:translateX(-50%);
  content:"";
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0}

/* mobile drawer */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:1040;
  background:var(--bg);
  padding:24px;
  display:none;
  flex-direction:column;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{
  width:44px;height:44px;
  border:1px solid var(--line-soft);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--text);
  font-size:20px;
  line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.drawer-nav a{
  display:flex;
  align-items:baseline;
  gap:14px;
  font-size:20px;
  line-height:2.4;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a .mono{font-size:13px;color:var(--text-dim)}
.drawer-nav a.active{color:var(--accent)}
.drawer-foot{margin-top:24px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-weight:700;
  font-size:15px;
  padding:14px 28px;
  cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
}
.btn-primary{background:var(--accent);color:#131316}
.btn-primary:hover{background:#ff7b45;color:#131316;transform:translateY(-1px)}
.btn-primary:active{background:var(--accent-dark);transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-soft);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
}
.badge-lime{background:rgba(198,242,78,.14);color:var(--lime)}
.badge-orange{background:var(--accent);color:#131316}
.dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--lime);
  display:inline-block;
}
.dot-orange{background:var(--accent)}

/* ---------- hero ---------- */
.hero-cat{
  position:relative;
  min-height:420px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  background-color:#26242B;
  transform:scale(1.02);
}
.hero-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(15,14,17,.55) 0%,rgba(15,14,17,.82) 55%,rgba(15,14,17,.97) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:72px;padding-bottom:52px}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-dim);
  margin-bottom:20px;
}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:var(--line-soft)}
.crumb .cur{color:var(--text-dim)}
.hero-cat h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
  margin:16px 0 14px;
  max-width:22em;
}
.hero-sub{
  font-size:17px;
  line-height:1.75;
  color:#D6D3CE;
  max-width:34em;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-facts .num{
  font-family:var(--font-mono);
  font-size:22px;
  font-weight:700;
  color:var(--lime);
  display:block;
  line-height:1.3;
}
.hero-facts .cap{font-size:12px;color:var(--text-dim)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-dark{background:var(--bg);border-top:1px solid var(--line)}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line)}
.section-paper{background:var(--paper);color:var(--ink);border-top:1px solid var(--line)}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.sec-head-left{display:flex;gap:16px;align-items:flex-start}
.sec-bar{width:4px;border-radius:2px;background:var(--accent);align-self:stretch;min-height:52px;flex:0 0 4px}
.sec-num{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--text-dim);
  display:block;
  margin-bottom:4px;
}
.section-paper .sec-num{color:var(--ink-dim)}
.sec-head h2{
  font-size:clamp(23px,2.6vw,29px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.01em;
}
.sec-desc{font-size:14px;color:var(--text-dim);margin-top:8px;max-width:40em;line-height:1.8}
.section-paper .sec-desc{color:var(--ink-dim)}
.sec-link{
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
  white-space:nowrap;
}
.sec-link:hover{border-bottom-color:var(--accent)}

/* ---------- stagger grid ---------- */
.stagger{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.stagger .st-card{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-dark);
  transition:transform var(--ease),border-color var(--ease);
  display:flex;
  flex-direction:column;
}
.stagger .st-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.stagger .st-card.offset{margin-top:56px}
.st-card .cover{
  position:relative;
  background:#26242B;
  overflow:hidden;
}
.st-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.st-card:hover .cover img{transform:scale(1.04)}
.st-card.tall .cover{aspect-ratio:4/5}
.st-card.square .cover{aspect-ratio:1/1}
.st-card .cover .tag{
  position:absolute;
  top:14px;left:14px;
}
.st-card .cover .status{
  position:absolute;
  top:16px;right:16px;
  display:flex;align-items:center;gap:6px;
  font-size:11px;
  color:var(--lime);
  font-family:var(--font-mono);
}
.st-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.st-index{font-family:var(--font-mono);font-size:13px;color:var(--accent)}
.st-body h3{
  font-size:20px;
  font-weight:800;
  line-height:1.5;
  letter-spacing:-.01em;
}
.st-body p{font-size:14px;line-height:1.85;color:var(--text-dim)}
.st-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-dim);
  font-family:var(--font-mono);
}

/* ---------- card grid ---------- */
.card-grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.content-card{
  background:var(--card-light);
  border:1px solid rgba(23,22,26,.07);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-light);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;
  flex-direction:column;
  color:var(--ink);
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--sh-light-hover);border-color:rgba(255,106,43,.5)}
.content-card .cover{
  position:relative;
  aspect-ratio:16/10;
  background:#26242B;
  overflow:hidden;
}
.content-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.content-card:hover .cover img{transform:scale(1.04)}
.content-card .cover .tag{position:absolute;top:12px;left:12px}
.cc-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.cc-body h3{font-size:18px;font-weight:800;line-height:1.5;letter-spacing:-.01em}
.cc-body p{font-size:14px;line-height:1.8;color:var(--ink-dim)}
.cc-meta{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid rgba(23,22,26,.08);
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--ink-dim);
  display:flex;
  justify-content:space-between;
  gap:12px;
}
.content-card .code{
  position:absolute;
  top:12px;right:12px;
  font-family:var(--font-mono);
  font-size:12px;
  color:#131316;
  background:var(--lime);
  border-radius:var(--r-xs);
  padding:3px 8px;
  font-weight:700;
}

/* ---------- row list (60/40) ---------- */
.rowlist{display:grid;gap:20px}
.rowlist-item{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:28px;
  align-items:center;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-dark);
  transition:border-color var(--ease),transform var(--ease);
}
.rowlist-item:hover{border-color:var(--accent);transform:translateY(-2px)}
.rowlist-item .txt{display:flex;flex-direction:column;gap:12px}
.rl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.rl-index{font-family:var(--font-mono);font-size:13px;color:var(--accent)}
.rowlist-item h3{font-size:20px;font-weight:800;line-height:1.45}
.rowlist-item p{font-size:14px;line-height:1.85;color:var(--text-dim)}
.rl-tags{display:flex;gap:8px;flex-wrap:wrap}
.tag-outline{
  border:1px solid var(--line-soft);
  border-radius:999px;
  padding:4px 12px;
  font-size:12px;
  color:var(--text-dim);
}
.rowlist-item .pic{
  aspect-ratio:4/3;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:#26242B;
}
.rowlist-item .pic img{width:100%;height:100%;object-fit:cover}

/* ---------- numbered cards ---------- */
.numlist{display:grid;gap:24px;grid-template-columns:repeat(2,minmax(0,1fr))}
.num-card{
  position:relative;
  background:var(--card-light);
  border-radius:var(--r-md);
  border:1px solid rgba(23,22,26,.07);
  padding:28px 24px 24px;
  box-shadow:var(--sh-light);
  color:var(--ink);
  transition:transform var(--ease),box-shadow var(--ease);
}
.num-card:hover{transform:translateY(-4px);box-shadow:var(--sh-light-hover)}
.num-card .n{
  font-family:var(--font-mono);
  font-size:32px;
  font-weight:700;
  color:var(--accent);
  line-height:1;
  display:block;
  margin-bottom:14px;
}
.num-card h3{font-size:19px;font-weight:800;line-height:1.5;margin-bottom:10px}
.num-card p{font-size:14px;line-height:1.85;color:var(--ink-dim)}
.num-card ul{margin-top:14px;display:grid;gap:8px}
.num-card li{
  font-size:14px;
  color:var(--ink-dim);
  padding-left:18px;
  position:relative;
  line-height:1.8;
}
.num-card li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:2px;
  background:var(--accent);
}

/* ---------- note strip ---------- */
.note-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:40px;
}
.note-item{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-dark);
}
.note-item .k{
  font-family:var(--font-mono);
  font-size:22px;
  font-weight:700;
  color:var(--lime);
  display:block;
  line-height:1.3;
}
.note-item .v{font-size:13px;color:var(--text-dim);margin-top:4px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  background:transparent;
  border:0;
  color:var(--text);
  text-align:left;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 14px 24px 16px;
  font-size:17px;
  font-weight:700;
  line-height:1.6;
  cursor:pointer;
  position:relative;
  transition:color var(--ease),background-color var(--ease);
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  background:var(--accent);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--ease);
}
.faq-q:hover{background:var(--bg-alt)}
.faq-item.is-open .faq-q{color:var(--text)}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-icon{
  font-family:var(--font-mono);
  font-size:20px;
  color:var(--accent);
  flex:0 0 auto;
  line-height:1;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 240ms cubic-bezier(.2,.7,.2,1);
}
.faq-a-inner{
  padding:0 56px 26px 16px;
  font-size:15px;
  line-height:1.95;
  color:var(--text-dim);
  max-width:46em;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:48px;
  align-items:center;
}
.cta-band h2{font-size:clamp(23px,2.8vw,30px);font-weight:800;line-height:1.35;letter-spacing:-.01em}
.cta-band p{font-size:15px;line-height:1.9;color:var(--text-dim);margin-top:14px;max-width:34em}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input[type="email"]{
  flex:1 1 240px;
  height:48px;
  background:var(--bg);
  border:1px solid var(--line-soft);
  border-radius:var(--r-btn);
  color:var(--text);
  padding:0 16px;
}
.cta-form input[type="email"]::placeholder{color:#8A8894}
.cta-form input[type="email"]:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,242,78,.35)}
.cta-form input[type="email"].is-error{border-color:var(--accent)}
.form-msg{font-size:13px;color:var(--text-dim);margin-top:12px;min-height:20px}
.form-msg.ok{color:var(--lime)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-dim);max-width:26em}
.footer-title{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--text)}
.footer-links{display:grid;gap:12px}
.footer-links a,
.footer-index a{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:14px;
  color:var(--text-dim);
  transition:color var(--ease),transform var(--ease);
}
.footer-links a:hover,
.footer-index a:hover{color:var(--accent);transform:translateX(2px)}
.footer-index{display:grid;gap:12px;margin-top:20px}
.footer-index .mono,.footer-links .mono{font-size:12px;color:var(--line-soft)}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.footer-form input[type="email"]{
  flex:1 1 150px;
  height:48px;
  background:var(--bg-alt);
  border:1px solid var(--line-soft);
  border-radius:var(--r-btn);
  color:var(--text);
  padding:0 14px;
}
.footer-form input[type="email"]::placeholder{color:#8A8894}
.footer-form input[type="email"]:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(198,242,78,.3)}
.footer-note{font-size:13px;color:var(--lime);min-height:20px;margin-top:10px}
.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:#8A8894;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .nav-group.left,.nav-group.right{display:none}
  .nav-toggle{display:block}
  .brand{position:static;transform:none;margin:0 auto}
  .nav-wrap{height:64px}
  .section{padding:64px 0}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .hero-cat{min-height:340px}
  .hero-facts{gap:24px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section{padding-top:56px;padding-bottom:56px}
  .hero-inner{padding-top:56px;padding-bottom:40px}
  .hero-cat h1{font-size:28px}
  .stagger{grid-template-columns:1fr;gap:20px}
  .stagger .st-card.offset{margin-top:0}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .numlist{grid-template-columns:1fr}
  .rowlist-item{grid-template-columns:1fr;gap:18px;padding:20px}
  .rowlist-item .pic{order:-1}
  .note-strip{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:16px;padding-right:8px}
  .faq-a-inner{padding-right:24px}
  .sec-head{margin-bottom:28px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .stagger .st-card:hover,
  .content-card:hover,
  .num-card:hover,
  .rowlist-item:hover{transform:none}
  .content-card:hover .cover img,
  .st-card:hover .cover img{transform:none}
}