/* roulang page: index */
:root{
  --ink:#101311;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --muted:#6B6F68;
  --line:#D9D6CC;
  --acid:#C8FF4D;
  --acid-ink:#1C2A0E;
  --clay:#E46F45;
  --clay-soft:#FBE9E1;
  --ok:#2E7D5B;
  --error:#B42318;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --shadow-soft:0 8px 30px rgba(16,19,17,.06);
  --shadow-lift:0 14px 40px rgba(16,19,17,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--acid);outline-offset:3px;border-radius:6px}

/* ---------- layout ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:40px}
.section-head .lead{max-width:560px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--acid);box-shadow:0 0 0 3px rgba(200,255,77,.28)}
h2{font-size:clamp(28px,3.4vw,44px);line-height:1.16;letter-spacing:-.02em;font-weight:800}
h3{font-size:22px;line-height:1.3;letter-spacing:-.01em;font-weight:700}
.sub{color:var(--muted);font-size:16px;line-height:1.85;margin-top:14px}

/* ---------- buttons / tags ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.btn .arw{transition:transform .18s}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--acid);color:var(--acid-ink);border-color:var(--acid)}
.btn-primary:hover{background:var(--ink);color:var(--acid);border-color:var(--acid)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-onink{background:var(--acid);color:var(--acid-ink);border-color:var(--acid)}
.btn-onink:hover{background:transparent;color:var(--acid);border-color:var(--acid)}
.btn-line-light{background:transparent;color:var(--paper);border-color:rgba(247,245,239,.4)}
.btn-line-light:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:var(--paper);
  color:var(--muted);font-size:13px;white-space:nowrap;transition:.18s;
}
.tag.active,.tag:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
  border-radius:999px;background:var(--clay-soft);color:#9A4526;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-acid{background:rgba(200,255,77,.35);color:var(--acid-ink)}
.textlink{color:var(--ink);font-weight:600;border-bottom:2px solid var(--acid);padding-bottom:2px;transition:.18s}
.textlink:hover{color:#4E6B12;border-bottom-color:var(--ink)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(247,245,239,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:32px;height:72px}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:17px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.logo .mark{position:relative}
.logo .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;
  background:var(--acid);border-radius:2px;
}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  font-size:15px;font-weight:500;color:var(--ink);transition:color .18s;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:18px;height:2px;width:0;
  background:var(--acid);transition:width .18s;
}
.nav-link:hover::after,.nav-link.active::after{width:24px}
.nav-link:hover{color:#2C3312}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:999px;border:1px solid var(--ink);background:transparent;
  font-size:14px;font-weight:600;cursor:pointer;transition:.18s;
}
.mega-btn:hover{background:var(--ink);color:var(--paper)}
.mega-btn .chev{transition:transform .18s}
.mega-wrap:hover .mega-btn .chev,.mega-wrap:focus-within .mega-btn .chev{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:min(860px,calc(100vw - 48px));
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);box-shadow:var(--shadow-soft);
  padding:24px;display:grid;grid-template-columns:1.05fr 1fr .9fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s,transform .18s,visibility .18s;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:none}
.mega-col h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.mega-col ul{display:grid;gap:8px}
.mega-col a{font-size:14px;color:var(--ink);transition:.18s}
.mega-col a:hover{color:#4E6B12;padding-left:4px}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:var(--paper);transition:.18s;
}
.mega-card:hover{transform:translateY(-3px);border-color:var(--ink)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card .mc-body{padding:12px 14px}
.mega-card strong{display:block;font-size:14px;line-height:1.45}
.mega-card span{font-size:12px;color:var(--muted)}

.nav-toggle{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.nav-burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;
}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;
}
.nav-burger span{position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}
.mobile-drawer{
  position:fixed;top:72px;right:0;width:86%;max-width:360px;height:calc(100vh - 72px);
  background:var(--paper);border-left:1px solid var(--line);
  padding:24px;transform:translateX(102%);transition:transform .24s;
  z-index:65;overflow-y:auto;
}
#navToggle:checked ~ .mobile-drawer{transform:none}
.drawer-mask{
  position:fixed;inset:72px 0 0;background:rgba(16,19,17,.42);
  opacity:0;visibility:hidden;transition:.24s;z-index:60;
}
#navToggle:checked ~ .drawer-mask{opacity:1;visibility:visible}
.drawer-nav{display:grid;gap:4px;margin-bottom:24px}
.drawer-nav a{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer-group{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:12px;background:var(--surface)}
.drawer-group summary{font-size:14px;font-weight:600;cursor:pointer;list-style:none}
.drawer-group summary::-webkit-details-marker{display:none}
.drawer-group ul{margin-top:12px;display:grid;gap:10px}
.drawer-group a{font-size:14px;color:var(--muted)}
.drawer-group a:hover{color:var(--ink)}

/* ---------- hero ---------- */
.hero{
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
  padding:72px 0 64px;min-height:640px;
}
.hero-copy h1{
  font-size:clamp(38px,5.2vw,64px);line-height:1.1;letter-spacing:-.03em;font-weight:800;
}
.hero-copy h1 .hl{
  position:relative;white-space:nowrap;
  background:linear-gradient(transparent 62%,rgba(200,255,77,.75) 62%);
}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.85;color:#3C423A;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;
  border:1px solid var(--line);border-radius:999px;background:var(--surface);
  font-size:13px;color:#3C423A;
}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--acid);display:block}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:3/4;object-fit:cover;
  border-radius:var(--radius-lg);border:1px solid var(--line);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  background:rgba(16,19,17,.10);pointer-events:none;
}
.hero-badge{
  position:absolute;left:-18px;bottom:32px;z-index:2;
  background:var(--acid);color:var(--acid-ink);
  padding:14px 18px;border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);max-width:220px;
}
.hero-badge strong{display:block;font-size:20px;line-height:1.2;font-weight:800}
.hero-badge span{font-size:12px;color:#3A4A20;letter-spacing:.04em}

/* ---------- stats ---------- */
.stats{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--surface);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:32px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat strong{display:block;font-size:clamp(28px,3vw,40px);font-weight:800;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.1}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- matrix ---------- */
.matrix-scroll{overflow-x:auto;padding-bottom:4px}
.matrix{
  display:grid;grid-template-columns:1.35fr repeat(4,1fr);
  min-width:880px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
}
.matrix > div{
  padding:16px 18px;font-size:14px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;min-height:62px;
}
.matrix .mx-head{background:var(--paper);font-weight:700;font-size:15px;flex-direction:column;align-items:flex-start;justify-content:center;gap:4px}
.matrix .mx-head small{font-weight:500;font-size:12px;color:var(--muted)}
.matrix .mx-label{font-weight:600;color:#2A3028}
.matrix .is-rec{background:rgba(200,255,77,.16)}
.matrix .mx-foot{background:var(--surface);border-bottom:0;padding:18px}
.matrix .mx-foot.mx-head{background:var(--paper)}
.matrix .mx-rec-label{color:#4E6B12}
.mini-note{font-size:13px;color:var(--muted);margin-top:16px}

/* ---------- ladder ---------- */
.ladder{display:grid;gap:16px}
.ladder-item{
  display:grid;grid-template-columns:120px 1fr auto;gap:28px;align-items:center;
  padding:28px 32px;border-radius:var(--radius-md);border:1px solid var(--line);
  background:var(--surface);transition:transform .18s,border-color .18s,box-shadow .18s;
}
.ladder-item:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:var(--shadow-soft)}
.ladder-item.tone-d{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.ladder-item.tone-d .ladder-desc,.ladder-item.tone-d .ladder-tags span{color:rgba(247,245,239,.72)}
.ladder-item.tone-a{background:rgba(200,255,77,.22);border-color:#B7E85F}
.ladder-num{font-size:44px;font-weight:800;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums;color:inherit;opacity:.55}
.ladder-main strong{display:block;font-size:20px;font-weight:700;line-height:1.4}
.ladder-desc{display:block;font-size:14px;color:var(--muted);margin-top:4px}
.ladder-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.ladder-tags span{
  font-size:12px;color:var(--muted);border:1px solid var(--line);
  border-radius:999px;padding:3px 10px;background:rgba(255,255,255,.6);
}
.ladder-item.tone-d .ladder-tags span{border-color:rgba(247,245,239,.28);background:rgba(255,255,255,.08)}
.ladder-go{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  border-bottom:2px solid var(--acid);padding-bottom:2px;white-space:nowrap;
}
.ladder-go:hover{gap:10px}

/* ---------- preview ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.preview-card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;background:var(--surface);transition:transform .18s,border-color .18s,box-shadow .18s;
}
.preview-card:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:var(--shadow-soft)}
.preview-card.offset{margin-top:40px}
.preview-media{position:relative}
.preview-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s}
.preview-card:hover .preview-media img{transform:scale(1.02)}
.lock{
  position:absolute;top:14px;right:14px;z-index:2;
  background:var(--ink);color:var(--acid);font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;
}
.preview-body{padding:22px 24px 26px}
.preview-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.preview-body p{font-size:15px;color:var(--muted);margin-top:10px;line-height:1.8}
.preview-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:28px;flex-wrap:wrap}

/* ---------- news ---------- */
.news-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.news-aside .filters{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.news-aside .note{font-size:14px;color:var(--muted);margin-top:20px;max-width:340px}
.news-list{display:grid;gap:16px}
.news-item{
  display:grid;grid-template-columns:118px 1fr 32px;gap:18px;align-items:center;
  padding:16px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:var(--surface);transition:transform .18s,border-color .18s,box-shadow .18s;
}
.news-item:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:var(--shadow-soft)}
.news-item img{width:118px;aspect-ratio:4/3;object-fit:cover;border-radius:10px}
.news-body{min-width:0}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:6px;flex-wrap:wrap}
.news-body strong{display:block;font-size:16px;line-height:1.5;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-arrow{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line);
  transition:.18s;font-size:14px;
}
.news-item:hover .news-arrow{background:var(--acid);border-color:var(--acid);color:var(--acid-ink);transform:translateX(3px)}
.news-empty{
  border:1px dashed #BDB9AC;border-radius:var(--radius-md);
  background:var(--surface);padding:40px 28px;text-align:center;
}
.news-empty strong{display:block;font-size:16px;margin-bottom:8px}
.news-empty p{color:var(--muted);font-size:14px;margin-bottom:18px}
.news-foot{margin-top:22px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);padding:6px 0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 0;cursor:pointer;font-size:17px;font-weight:600;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-arrow{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  font-size:16px;font-weight:500;transition:transform .2s,background .2s;color:var(--muted);
}
.faq-item[open] .faq-arrow{transform:rotate(45deg);background:var(--acid);border-color:var(--acid);color:var(--acid-ink)}
.faq-item p{padding:0 0 20px;font-size:15px;color:var(--muted);line-height:1.85;max-width:640px}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink);color:var(--paper);
  border-radius:var(--radius-lg);padding:56px;
  display:grid;grid-template-columns:1fr 520px;gap:56px;align-items:start;
}
.cta-band h2{color:var(--paper)}
.cta-band .lead{color:rgba(247,245,239,.72);font-size:16px;margin-top:16px;max-width:440px}
.cta-facts{display:grid;gap:10px;margin-top:28px}
.cta-facts li{display:flex;gap:10px;font-size:14px;color:rgba(247,245,239,.78)}
.cta-facts li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:8px;border-radius:50%;background:var(--acid)}
.form-card{background:rgba(255,255,255,.04);border:1px solid rgba(247,245,239,.16);border-radius:var(--radius-md);padding:24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:rgba(247,245,239,.7);margin-bottom:6px}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:15px;
  transition:border-color .18s,box-shadow .18s;
}
.field input::placeholder{color:#9B9F96}
.field input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(200,255,77,.55)}
.field input:disabled{background:#EFEDE6;color:#9B9F96;cursor:not-allowed}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(247,245,239,.72);margin:14px 0 18px}
.checkline input{width:18px;height:18px;margin-top:3px;accent-color:#C8FF4D}
.form-hint{font-size:12px;color:rgba(247,245,239,.55);margin-top:12px;line-height:1.7}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .flogo{font-size:18px;font-weight:800;letter-spacing:-.02em}
.footer-brand p{font-size:14px;color:rgba(247,245,239,.62);margin-top:14px;max-width:320px;line-height:1.8}
.footer-col h4{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:rgba(247,245,239,.5);margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(247,245,239,.82);transition:color .18s}
.footer-col a:hover{color:var(--acid)}
.footer-bottom{
  border-top:1px solid rgba(247,245,239,.14);padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,245,239,.55);
}

/* ---------- motion ---------- */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hero-copy h1{animation:rise .3s ease-out both}
.hero-sub{animation:rise .3s ease-out .06s both}
.hero-actions,.hero-chips{animation:rise .3s ease-out .12s both}
.stats-grid{animation:rise .4s ease-out .16s both}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .hero{gap:40px}
  .cta-band{grid-template-columns:1fr 440px;gap:40px;padding:48px}
}
@media (max-width:1024px){
  .nav-main,.mega-wrap{display:none}
  .nav-burger{display:inline-flex}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .hero{grid-template-columns:1fr;min-height:auto;padding:48px 0 40px;gap:32px}
  .hero-media img{aspect-ratio:16/11}
  .hero-badge{left:16px;bottom:16px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:0;border-top:1px solid var(--line);padding:24px}
  .stat:nth-child(odd){border-right:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
  .news-wrap,.faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .section-head{flex-direction:column;align-items:flex-start;gap:20px}
  .ladder-item{grid-template-columns:80px 1fr;padding:24px}
  .ladder-go{grid-column:2;justify-self:start}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .preview-grid{grid-template-columns:1fr}
  .preview-card.offset{margin-top:0}
  .ladder-item{grid-template-columns:60px 1fr;gap:16px}
  .ladder-num{font-size:34px}
  .news-item{grid-template-columns:96px 1fr;gap:14px}
  .news-item img{width:96px}
  .news-arrow{display:none}
  .cta-band{padding:28px;border-radius:var(--radius-md)}
  .matrix-scroll{margin:0 -20px;padding:0 20px 4px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero-copy h1{font-size:34px}
  .hero-copy h1 .hl{white-space:normal}
  .hero-actions .btn{width:100%}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-right:0;border-top:1px solid var(--line)}
  .stat:first-child{border-top:0}
  .footer-grid{grid-template-columns:1fr}
  .section-head h2{font-size:26px}
  .ladder-item{grid-template-columns:1fr;gap:8px}
  .ladder-go{grid-column:1}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink:#101311;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --muted:#6B6F68;
  --line:#D9D6CC;
  --acid:#C8FF4D;
  --acid-ink:#1C2A0E;
  --clay:#E46F45;
  --clay-soft:#FBE9E1;
  --ok:#2E7D5B;
  --error:#B42318;
  --soft:#F1EEE4;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --shadow-soft:0 8px 30px rgba(16,19,17,.06);
  --shadow-mid:0 14px 40px rgba(16,19,17,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  font-feature-settings:"tnum" 1;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.2}
p{margin:0}
:focus-visible{outline:2px solid var(--acid);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;transition:background .18s,color .18s,border-color .18s,transform .18s;
  white-space:nowrap;
}
.btn .arw{transition:transform .18s}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--acid);color:var(--acid-ink);border-color:var(--acid)}
.btn-primary:hover{background:var(--ink);color:var(--acid);border-color:var(--acid)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:2px;transition:color .18s,border-color .18s}
.text-link:hover{color:var(--acid-ink);border-color:var(--acid)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  background:var(--soft);color:#4A4E46;border:1px solid var(--line);
}
.badge-acid{background:var(--acid);color:var(--acid-ink);border-color:transparent}
.badge-clay{background:var(--clay-soft);color:#8C3E20;border-color:#F2D3C4}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(247,245,239,.94);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-toggle{position:absolute;width:1px;height:1px;opacity:0;left:-9999px}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.logo{
  display:inline-flex;align-items:baseline;gap:1px;font-size:19px;font-weight:800;
  letter-spacing:-.02em;white-space:nowrap;color:var(--ink);
}
.logo .mark{background:linear-gradient(transparent 64%,var(--acid) 64%);padding:0 1px}
.nav-main{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:#2C302B;padding:6px 0;
  transition:color .18s;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--acid);transform:scaleX(0);transform-origin:left;transition:transform .18s;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{font-weight:700;color:var(--ink)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.mega-wrap{position:relative}
.mega-btn{
  display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 16px;
  border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface);
  font-size:14px;font-weight:600;cursor:pointer;transition:background .18s,color .18s,border-color .18s;
}
.mega-btn .chev{font-size:11px;transition:transform .18s}
.mega-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.mega-wrap:hover .mega-btn,.mega-wrap:focus-within .mega-btn{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.mega-wrap:hover .chev,.mega-wrap:focus-within .chev{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;
  width:min(860px,calc(100vw - 48px));
  display:grid;grid-template-columns:1fr 1fr 252px;gap:24px;
  padding:24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);box-shadow:var(--shadow-mid);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s,transform .2s,visibility .2s;z-index:130;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:none}
.mega-col h4{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--muted);margin-bottom:14px}
.mega-col ul{list-style:none;display:grid;gap:4px}
.mega-col li a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14.5px;color:#2C302B;
  transition:background .16s,color .16s;
}
.mega-col li a:hover{background:var(--paper);color:var(--ink);}
.mega-col li a:hover::before{content:"› ";color:var(--clay)}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:var(--paper);transition:transform .18s,box-shadow .18s,border-color .18s;
}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card .mc-body{padding:12px 14px}
.mega-card strong{display:block;font-size:14.5px;margin-bottom:4px}
.mega-card span{font-size:12.5px;color:var(--muted);line-height:1.6;display:block}
.mega-card:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:var(--shadow-soft)}
.nav-burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);cursor:pointer;transition:border-color .18s}
.nav-burger:hover{border-color:var(--ink)}
.nav-burger span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}
.mobile-drawer{display:none}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);padding:26px 0 0;
}
.breadcrumb a{color:var(--muted);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px;transition:color .16s}
.breadcrumb a:hover{color:var(--ink);text-decoration-color:var(--acid)}
.breadcrumb .sep{opacity:.55}
.crumb-current{color:var(--ink);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article layout ---------- */
.article-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;
  align-items:start;padding:32px 0 96px;
}
.article-main{min-width:0;max-width:780px}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line)}
.article-head h1{
  font-size:clamp(30px,3.6vw,44px);font-weight:800;line-height:1.22;
  margin:16px 0 0;letter-spacing:-.025em;word-break:break-word;
}
.article-lead{margin-top:16px;font-size:17px;line-height:1.85;color:#3B3F38}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13.5px;color:var(--muted)}
.article-meta .dot{opacity:.5}
.article-hero{margin:28px 0 0;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.article-hero img{width:100%;aspect-ratio:21/9;object-fit:cover}

/* ---------- article body ---------- */
.article-body{padding:34px 0 6px;font-size:17px;line-height:1.85;color:#1B1F1B;word-break:break-word}
.article-body > * + *{margin-top:20px}
.article-body h2{
  font-size:clamp(23px,2.3vw,29px);font-weight:800;line-height:1.34;letter-spacing:-.02em;
  margin-top:46px;display:flex;align-items:flex-start;gap:12px;
}
.article-body h2::before{content:"";flex:0 0 4px;width:4px;height:1.05em;margin-top:.2em;background:var(--acid);border-radius:2px}
.article-body h3{font-size:20px;font-weight:700;line-height:1.45;margin-top:32px}
.article-body h4{font-size:17px;font-weight:700;margin-top:24px}
.article-body p{font-size:17px;line-height:1.85}
.article-body a{color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--muted);transition:color .16s,text-decoration-color .16s}
.article-body a:hover{color:var(--acid-ink);text-decoration-color:var(--acid);text-decoration-thickness:2px}
.article-body strong{font-weight:700}
.article-body ul,.article-body ol{padding-left:22px}
.article-body li{margin-top:10px;line-height:1.8}
.article-body li::marker{color:var(--clay)}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;background:var(--soft);
  border-left:3px solid var(--acid);border-radius:0 12px 12px 0;color:#33372F;
}
.article-body blockquote p{font-size:16.5px;line-height:1.8;margin:0}
.article-body img{border-radius:12px;border:1px solid var(--line);margin-top:26px}
.article-body figcaption,.article-body .figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin-top:26px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;line-height:1.65}
.article-body th{background:var(--soft);font-weight:700}
.article-body code{background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- article end blocks ---------- */
.article-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:48px;padding:24px 26px;background:var(--ink);color:var(--paper);border-radius:var(--radius-md);
}
.article-cta .cta-copy strong{display:block;font-size:18px;color:var(--acid);margin-bottom:6px;letter-spacing:-.01em}
.article-cta .cta-copy span{font-size:13.5px;color:#B6BAB0;line-height:1.7}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px}
.tag-row .tag-label{font-size:13px;color:var(--muted);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:#3B3F38;background:var(--surface);
  border:1px solid var(--line);transition:background .16s,border-color .16s,color .16s;
}
.tag:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.back-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:26px}

/* ---------- related ---------- */
.section-block{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:20px}
.section-head h2{font-size:clamp(22px,2.2vw,28px);font-weight:800}
.section-head .sub{font-size:13.5px;color:var(--muted)}
.related-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:20px;align-items:start}
.related-side{display:flex;flex-direction:column;gap:20px}
.rcard{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:transform .18s,border-color .18s,box-shadow .18s;
}
.rcard:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:var(--shadow-soft)}
.rcard img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s}
.rcard:hover img{transform:scale(1.02)}
.rcard-body{padding:18px 20px 20px}
.rcard-body .badge{margin-bottom:10px}
.rcard h3{font-size:18px;font-weight:700;line-height:1.42;letter-spacing:-.01em}
.rcard p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-top:8px}
.rcard-sm{display:grid;grid-template-columns:104px minmax(0,1fr);align-items:stretch}
.rcard-sm img{height:100%;aspect-ratio:auto;min-height:96px}
.rcard-sm .rcard-body{padding:14px 16px}
.rcard-sm h3{font-size:15px;line-height:1.45}
.rcard-sm p{display:none}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:20px}
.side-card h3{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--muted);margin-bottom:14px}
.side-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.side-list li{position:relative;padding-left:16px;font-size:14px;line-height:1.62;color:#33372F}
.side-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--acid)}
.side-facts{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:var(--muted)}
.side-facts div{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding-bottom:9px}
.side-facts div:last-child{border-bottom:0;padding-bottom:0}
.side-facts b{color:var(--ink);font-weight:700}
.side-cta{background:var(--ink);border-radius:var(--radius-md);padding:22px;color:var(--paper)}
.side-cta strong{display:block;font-size:15.5px;color:var(--acid);margin-bottom:8px;line-height:1.4}
.side-cta p{font-size:13px;color:#B6BAB0;line-height:1.7;margin-bottom:16px}

/* ---------- empty state ---------- */
.empty-wrap{padding:64px 0 96px}
.empty-box{
  max-width:640px;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--radius-lg);padding:44px 36px;box-shadow:var(--shadow-soft);
}
.empty-box h1{font-size:clamp(26px,3vw,34px);font-weight:800}
.empty-box p{margin-top:14px;font-size:15.5px;color:var(--muted);line-height:1.85}
.empty-box .btn{margin-top:26px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#E9E7DF;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.flogo{font-size:19px;font-weight:800;color:var(--paper);letter-spacing:-.02em;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9ADA3;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:700;color:var(--paper);margin-bottom:14px;letter-spacing:0}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#A9ADA3;transition:color .18s}
.footer-col a:hover{color:var(--acid)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid #262A26;padding:20px 0 28px;font-size:13px;color:#8B8F86;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-main,.mega-wrap{display:none}
  .header-inner{height:64px;gap:16px}
  .nav-burger{display:flex}
  .mobile-drawer{display:block;max-height:0;overflow:hidden;transition:max-height .3s ease;border-top:1px solid transparent;background:var(--surface)}
  .nav-toggle:checked ~ .mobile-drawer{max-height:78vh;overflow-y:auto;border-top-color:var(--line)}
  .drawer-nav{display:flex;flex-direction:column;padding:8px 24px}
  .drawer-nav a{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}
  .drawer-nav a.active{color:var(--ink);border-left:3px solid var(--acid);padding-left:10px;margin-left:-13px}
  .drawer-group{border-top:1px solid var(--line);padding:0 24px}
  .drawer-group summary{list-style:none;cursor:pointer;min-height:48px;display:flex;align-items:center;justify-content:space-between;font-size:15px;font-weight:600}
  .drawer-group summary::-webkit-details-marker{display:none}
  .drawer-group summary::after{content:"＋";color:var(--muted)}
  .drawer-group[open] summary::after{content:"－"}
  .drawer-group ul{list-style:none;padding:0 0 12px}
  .drawer-group li a{display:block;padding:10px 0;font-size:14px;color:var(--muted)}
  .mega-panel{display:none}
  .article-wrap{grid-template-columns:minmax(0,1fr);gap:44px;padding-bottom:72px}
  .article-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .side-cta{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .logo{font-size:17px}
  .breadcrumb{padding-top:20px}
  .article-wrap{padding-top:24px;gap:36px}
  .article-head h1{font-size:clamp(26px,6.4vw,34px)}
  .article-lead{font-size:16px}
  .article-body{font-size:16.5px;padding-top:26px}
  .article-body p{font-size:16.5px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .article-cta{padding:20px}
  .article-cta .btn{width:100%}
  .section-block{margin-top:44px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{height:60px}
  .logo{font-size:15.5px}
  .crumb-current{white-space:normal;max-width:100%}
  .article-meta{gap:8px;font-size:12.5px}
  .rcard-sm{grid-template-columns:88px minmax(0,1fr)}
  .empty-box{padding:32px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .tag{height:28px;font-size:12.5px;padding:0 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .rcard:hover,.mega-card:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#101311;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --muted:#6B6F68;
  --line:#D9D6CC;
  --acid:#C8FF4D;
  --acid-ink:#1C2A0E;
  --clay:#E46F45;
  --clay-soft:#FBE9E1;
  --ok:#2E7D5B;
  --error:#B42318;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --shadow-soft:0 8px 30px rgba(16,19,17,.06);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.02em;line-height:1.2}
::selection{background:var(--acid);color:var(--acid-ink)}
a:focus-visible,button:focus-visible,summary:focus-visible,label:focus-visible{
  outline:2px solid var(--acid);
  outline-offset:2px;
  border-radius:6px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.nav-toggle{
  position:absolute;
  width:1px;height:1px;
  opacity:0;
  pointer-events:none;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:baseline;
  gap:3px;
  font-size:18px;
  font-weight:600;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo .mark{
  font-weight:800;
  letter-spacing:-.03em;
  position:relative;
}
.logo .mark::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:5px;
  background:var(--acid);
  border-radius:3px;
  z-index:-1;
}
.logo:hover .mark::after{background:var(--clay-soft)}

.nav-main{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:12px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  font-size:15px;
  font-weight:500;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:4px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--acid);
  transition:width .18s ease;
}
.nav-link:hover::after{width:24px}
.nav-link.active::after{width:24px}
.nav-link.active{font-weight:600}

.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.mega-wrap{position:relative}
.mega-btn{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:40px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--surface);
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.mega-btn:hover{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.mega-btn .chev{font-size:11px;line-height:1;transition:transform .18s ease}
.mega-wrap:hover .chev,.mega-wrap:focus-within .chev{transform:rotate(180deg)}

.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:min(860px,calc(100vw - 48px));
  display:grid;
  grid-template-columns:1fr 1fr 214px;
  gap:24px;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  z-index:90;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-col h4{
  margin:0 0 12px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--muted);
}
.mega-col li{margin-bottom:2px}
.mega-col a{
  display:block;
  padding:7px 10px;
  margin-left:-10px;
  border-radius:8px;
  font-size:14px;
  color:var(--ink);
  transition:background .16s ease,color .16s ease;
}
.mega-col a:hover{background:var(--paper);color:var(--ink)}
.mega-card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  background:var(--paper);
  transition:border-color .18s ease,transform .18s ease;
}
.mega-card:hover{border-color:var(--ink);transform:translateY(-3px)}
.mega-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.mc-body{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:12px 14px 14px;
}
.mc-body strong{font-size:14px;font-weight:700}
.mc-body span{font-size:12px;color:var(--muted);line-height:1.6}

.nav-burger{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  cursor:pointer;
}
.nav-burger span{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
}
.nav-burger span::before,
.nav-burger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}

.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  width:min(360px,86vw);
  height:100dvh;
  padding:84px 24px 36px;
  background:var(--surface);
  border-left:1px solid var(--line);
  box-shadow:-18px 0 44px rgba(16,19,17,.14);
  transform:translateX(103%);
  transition:transform .26s ease;
  overflow-y:auto;
  z-index:95;
}
#navToggle:checked ~ .mobile-drawer{transform:translateX(0)}
.drawer-close{
  position:absolute;
  top:20px;
  right:20px;
  width:40px;
  height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  font-size:16px;
  cursor:pointer;
  transition:background .18s ease,color .18s ease;
}
.drawer-close:hover{background:var(--ink);color:var(--paper)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:18px}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 12px;
  border-radius:10px;
  font-size:16px;
  font-weight:500;
  transition:background .16s ease,color .16s ease;
}
.drawer-nav a:hover{background:var(--paper)}
.drawer-nav a.active{background:var(--ink);color:var(--paper)}
.drawer-group{
  border-top:1px solid var(--line);
  padding-top:14px;
}
.drawer-group summary{
  cursor:pointer;
  min-height:44px;
  display:flex;
  align-items:center;
  font-size:15px;
  font-weight:600;
  list-style:none;
}
.drawer-group summary::-webkit-details-marker{display:none}
.drawer-group summary::after{
  content:"+";
  margin-left:auto;
  font-size:18px;
  color:var(--muted);
}
.drawer-group[open] summary::after{content:"−"}
.drawer-group a{
  display:block;
  padding:10px 12px;
  border-radius:8px;
  font-size:14px;
  color:var(--muted);
}
.drawer-group a:hover{background:var(--paper);color:var(--ink)}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:22px 0 0;
  font-size:13px;
  color:var(--muted);
}
.crumbs a{transition:color .16s ease}
.crumbs a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{color:var(--line)}
.crumbs .current{color:var(--ink);font-weight:600}

/* ============ 分类首屏 ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  margin-top:20px;
  padding:56px;
  border-radius:var(--radius-lg);
  color:var(--paper);
  background:#101311 url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(102deg,rgba(16,19,17,.95) 0%,rgba(16,19,17,.88) 46%,rgba(16,19,17,.58) 100%);
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-130px;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,77,.26),rgba(200,255,77,0) 68%);
  pointer-events:none;
}
.cat-hero > *{position:relative;z-index:1}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(200,255,77,.16);
  color:var(--acid);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
.cat-hero h1{
  margin-top:16px;
  max-width:780px;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.16;
  letter-spacing:-.02em;
  font-weight:800;
}
.cat-hero .lead{
  margin-top:18px;
  max-width:640px;
  font-size:16px;
  line-height:1.85;
  color:rgba(247,245,239,.78);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-facts{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  max-width:620px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid rgba(247,245,239,.18);
}
.hero-facts strong{
  display:block;
  font-size:26px;
  font-weight:700;
  line-height:1.2;
  color:var(--acid);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
}
.hero-facts span{
  display:block;
  margin-top:2px;
  font-size:13px;
  color:rgba(247,245,239,.66);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn .arw{transition:transform .18s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{
  background:var(--acid);
  color:var(--acid-ink);
  border-color:var(--acid);
}
.btn-primary:hover{
  background:var(--ink);
  color:var(--acid);
  border-color:var(--acid);
}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-ghost.on-dark{
  color:var(--paper);
  border-color:rgba(247,245,239,.45);
}
.btn-ghost.on-dark:hover{
  background:var(--paper);
  color:var(--ink);
  border-color:var(--paper);
}

/* ============ 筛选标签 ============ */
.filter-bar{
  display:flex;
  gap:10px;
  margin-top:28px;
  padding-bottom:6px;
  overflow-x:auto;
  scrollbar-width:thin;
}
.filter-bar::-webkit-scrollbar{height:4px}
.filter-bar::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.chip{
  display:inline-flex;
  align-items:center;
  flex:none;
  height:38px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--surface);
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.chip:hover{border-color:var(--ink)}
.chip.is-on{
  background:var(--ink);
  color:var(--paper);
  border-color:var(--ink);
}

/* ============ 主体：索引 + 卡片 ============ */
.cat-body{
  display:grid;
  grid-template-columns:256px minmax(0,1fr);
  gap:32px;
  padding-top:32px;
  align-items:start;
}
.cat-index{
  position:sticky;
  top:92px;
  padding:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
}
.idx-title{
  margin-bottom:12px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--muted);
}
.idx-list{display:flex;flex-direction:column;gap:2px}
.idx-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:40px;
  padding:0 10px;
  border-radius:8px;
  font-size:14px;
  transition:background .16s ease,color .16s ease;
}
.idx-list a:hover{background:var(--paper)}
.idx-list a.is-on{background:var(--ink);color:var(--paper)}
.idx-list .num{
  font-size:12px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
}
.idx-list a.is-on .num{color:rgba(247,245,239,.62)}
.idx-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.idx-note strong{
  display:block;
  margin-bottom:6px;
  font-size:13px;
  font-weight:700;
}
.idx-note p{
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}

.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.app-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.app-card:hover{
  transform:translateY(-4px);
  border-color:var(--ink);
  box-shadow:var(--shadow-soft);
}
.app-cover{
  position:relative;
  display:block;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--paper);
}
.app-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .25s ease;
}
.app-card:hover .app-cover img{transform:scale(1.02)}
.app-badge{
  position:absolute;
  left:12px;
  top:12px;
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(247,245,239,.94);
  color:var(--ink);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.app-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
  padding:20px 22px 22px;
}
.app-title{
  font-size:21px;
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.3;
}
.app-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}
.app-facts{
  display:flex;
  flex-wrap:wrap;
  gap:6px 14px;
  margin-top:2px;
  font-size:12.5px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
}
.app-facts li{position:relative}
.app-facts li + li::before{
  content:"";
  position:absolute;
  left:-8px;
  top:50%;
  width:1px;
  height:11px;
  background:var(--line);
  transform:translateY(-50%);
}
.app-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:auto;
  padding-top:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.app-link .arw{transition:transform .18s ease;display:inline-block}
.app-card:hover .app-link .arw{transform:translateX(4px)}

/* ============ 会员 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:40px;
  align-items:center;
  margin-top:80px;
  padding:48px;
  border-radius:var(--radius-lg);
  background:var(--ink);
  color:var(--paper);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-120px;
  bottom:-180px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,77,.18),rgba(200,255,77,0) 70%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{
  font-size:clamp(26px,3vw,36px);
  line-height:1.24;
  margin-bottom:14px;
}
.cta-band p{
  font-size:15px;
  line-height:1.85;
  color:rgba(247,245,239,.72);
  max-width:52ch;
}
.cta-side{display:flex;flex-direction:column;gap:16px}
.cta-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.cta-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:rgba(247,245,239,.84);
  line-height:1.7;
}
.cta-list li::before{
  content:"";
  flex:none;
  width:6px;
  height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--acid);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:64px 0 28px;
  background:var(--ink);
  color:var(--paper);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.flogo{
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(247,245,239,.66);
  max-width:38ch;
}
.footer-col h4{
  margin-bottom:14px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:rgba(247,245,239,.5);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  font-size:14px;
  color:rgba(247,245,239,.78);
  transition:color .16s ease;
}
.footer-col a:hover{color:var(--acid)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:16px;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(247,245,239,.14);
  font-size:13px;
  color:rgba(247,245,239,.5);
}

/* ============ 动效 ============ */
@keyframes riseIn{
  from{opacity:0;transform:translateY(14px)}
  to{opacity:1;transform:none}
}
.cat-hero h1{animation:riseIn .5s ease .04s both}
.cat-hero .lead{animation:riseIn .5s ease .12s both}
.hero-actions{animation:riseIn .5s ease .2s both}
.hero-facts{animation:riseIn .5s ease .28s both}

@media (prefers-reduced-motion:reduce){
  *{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-main,.mega-wrap{display:none}
  .nav-burger{display:flex}
  .cat-hero{padding:40px}
  .cat-body{grid-template-columns:1fr;gap:24px}
  .cat-index{position:static}
  .idx-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .idx-list a{
    min-height:36px;
    padding:0 14px;
    border:1px solid var(--line);
    border-radius:999px;
    font-size:13px;
  }
  .idx-list .num{margin-left:6px}
  .idx-note{margin-top:16px}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:820px){
  .card-grid{grid-template-columns:1fr}
}

@media (max-width:768px){
  .container{padding:0 20px}
  .cat-hero{padding:32px 24px}
  .cat-hero .lead{font-size:15px}
  .hero-facts{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
  .hero-facts strong{font-size:22px}
  .hero-facts span{font-size:12px}
  .hero-actions .btn{flex:1 1 auto}
  .cta-band{padding:32px 24px;margin-top:64px;gap:28px}
  .site-footer{margin-top:72px;padding-top:48px}
  .footer-brand p{max-width:none}
}

@media (max-width:520px){
  body{font-size:16px}
  .cat-hero h1{font-size:30px}
  .hero-facts{grid-template-columns:1fr 1fr;gap:12px 16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .app-body{padding:18px}
  .app-title{font-size:19px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px}
  .footer-bottom{justify-content:flex-start;text-align:left}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --ink:#101311;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --muted:#6B6F68;
  --line:#D9D6CC;
  --acid:#C8FF4D;
  --acid-ink:#1C2A0E;
  --clay:#E46F45;
  --clay-soft:#FBE9E1;
  --ok:#2E7D5B;
  --error:#B42318;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --shadow-soft:0 8px 30px rgba(16,19,17,.06);
  --shadow-hover:0 14px 40px rgba(16,19,17,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.78;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.15}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--acid);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn .arw{transition:transform .18s ease;display:inline-block}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--acid);color:var(--acid-ink);border-color:var(--acid)}
.btn-primary:hover{background:var(--ink);color:var(--acid);border-color:var(--acid)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-light{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn-light:hover{background:var(--acid);color:var(--acid-ink);border-color:var(--acid)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;border-bottom:1px solid var(--ink);padding-bottom:2px;transition:color .18s,border-color .18s}
.link-arrow:hover{color:var(--clay);border-color:var(--clay)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,239,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(6px);
}
.nav-toggle{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.header-inner{display:flex;align-items:center;gap:32px;min-height:72px}
.logo{
  font-size:18px;font-weight:700;letter-spacing:-.02em;display:inline-flex;align-items:baseline;gap:2px;
  white-space:nowrap;
}
.logo .mark{position:relative;font-weight:800}
.logo .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:3px;
  background:var(--acid);
}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;padding:8px 0;color:var(--ink);
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--acid);
  transition:width .18s ease;
}
.nav-link:hover::after,.nav-link:focus-visible::after{width:24px}
.nav-link.active::after{width:24px}
.nav-link.active{font-weight:700}
.header-right{margin-left:auto;display:flex;align-items:center;gap:14px}

/* Mega 面板 */
.mega-wrap{position:relative}
.mega-btn{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 16px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  font-size:14px;font-weight:600;transition:border-color .18s,background .18s,color .18s;
}
.mega-btn:hover,.mega-wrap:focus-within .mega-btn{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.mega-btn .chev{font-size:11px;line-height:1;transition:transform .18s}
.mega-wrap:hover .mega-btn .chev,.mega-wrap:focus-within .mega-btn .chev{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:min(860px,calc(100vw - 48px));
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 240px;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  z-index:90;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:700;margin-bottom:12px;text-transform:uppercase}
.mega-col ul li+li{margin-top:2px}
.mega-col ul a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14.5px;color:var(--ink);
  transition:background .16s,color .16s;
}
.mega-col ul a:hover{background:var(--paper);color:var(--acid-ink);box-shadow:inset 3px 0 0 var(--acid)}
.mega-card{
  display:flex;flex-direction:column;gap:12px;padding:12px;border:1px solid var(--line);
  border-radius:12px;background:var(--paper);transition:border-color .18s,transform .18s;
}
.mega-card:hover{border-color:var(--ink);transform:translateY(-2px)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:8px}
.mc-body strong{display:block;font-size:15px}
.mc-body span{display:block;font-size:13px;color:var(--muted);margin-top:2px}

/* 汉堡与抽屉 */
.nav-burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  align-items:center;justify-content:center;background:var(--surface);cursor:pointer;
}
.nav-burger span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:background .18s}
.nav-burger span::before,.nav-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .18s;
}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}
.mobile-drawer{display:none}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0 20px}
.drawer-nav > a{
  display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:16px;font-weight:600;
  border-bottom:1px solid var(--line);
}
.drawer-nav > a.is-active{color:var(--clay)}
.drawer-nav details{border-bottom:1px solid var(--line)}
.drawer-nav summary{
  display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:16px;font-weight:600;cursor:pointer;
  list-style:none;
}
.drawer-nav summary::-webkit-details-marker{display:none}
.drawer-nav summary::after{content:"▾";margin-left:auto;font-size:12px;color:var(--muted)}
.drawer-nav details[open] summary::after{transform:rotate(180deg)}
.drawer-nav details a{display:block;padding:10px 14px;font-size:15px;color:var(--muted)}
.drawer-nav details a:hover{color:var(--ink)}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--line)}
.crumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.crumb .current{color:var(--ink);font-weight:600}

/* ---------- Hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:44px 0 72px}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.10;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 320px at 12% 8%,rgba(200,255,77,.35),transparent 68%),
    radial-gradient(520px 300px at 92% 92%,rgba(228,111,69,.18),transparent 70%);
}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--acid-ink);background:var(--acid);border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(32px,4.2vw,54px);
  line-height:1.14;font-weight:800;letter-spacing:-.025em;
  max-width:15em;
}
.cat-hero h1 .hl{position:relative;white-space:nowrap}
.cat-hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.28em;border-radius:4px;
  background:var(--acid);z-index:-1;
}
.lede{margin-top:20px;font-size:17px;line-height:1.85;color:#33372f;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:0;margin-top:36px;border-top:1px solid var(--line);padding-top:18px;
}
.hero-facts li{padding-right:26px;margin-right:26px;border-right:1px solid var(--line);min-width:96px}
.hero-facts li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-facts strong{display:block;font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1.2}
.hero-facts span{display:block;font-size:13px;color:var(--muted);margin-top:2px}

.cat-hero-media{position:relative;min-height:440px}
.stack{
  position:absolute;margin:0;overflow:hidden;border-radius:var(--radius-md);
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-soft);
}
.stack img{width:100%;height:100%;object-fit:cover}
.stack-a{top:0;left:0;width:70%;aspect-ratio:4/3;z-index:1}
.stack-b{bottom:0;right:0;width:58%;aspect-ratio:4/3;z-index:2;border-color:var(--ink)}
.stack-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  background:var(--acid);color:var(--acid-ink);font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:999px;
}
.stack-b .stack-tag{left:auto;right:14px;top:auto;bottom:14px;background:var(--ink);color:var(--acid)}

/* ---------- 筛选标签 ---------- */
.filter-bar{padding:8px 0 0}
.filter-inner{
  display:flex;gap:10px;overflow-x:auto;padding:14px 0 22px;
  border-bottom:1px solid var(--line);scrollbar-width:thin;
}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;background:var(--surface);
  font-size:14px;font-weight:500;color:var(--ink);
  transition:background .16s,color .16s,border-color .16s;
}
.chip:hover{border-color:var(--ink)}
.chip.is-on{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:clamp(26px,3vw,38px);font-weight:800}
.section-head p{margin-top:10px;font-size:15.5px;color:var(--muted);max-width:44em}
.count-note{font-size:13.5px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:var(--surface)}

/* ---------- 纵向游戏列表 ---------- */
.game-list{border-top:1px solid var(--line)}
.game-row{
  display:grid;grid-template-columns:300px 1fr 36px;gap:28px;align-items:center;
  padding:26px 10px;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.game-row:hover{background:var(--surface)}
.row-media{
  aspect-ratio:16/10;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--paper);
}
.row-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.game-row:hover .row-media img{transform:scale(1.02)}
.badge{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.02em;
  padding:4px 11px;border-radius:999px;background:var(--clay-soft);color:#8A3D1D;
}
.badge.alt{background:#EAF6DC;color:#33520D}
.badge.dark{background:var(--ink);color:var(--acid)}
.row-body h3{font-size:22px;font-weight:700;margin:10px 0 8px}
.row-body h3 a:hover{color:var(--clay)}
.row-body p{font-size:15.5px;color:#3a3e37;line-height:1.8;max-width:52em}
.row-facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.row-facts li{
  font-size:13px;color:var(--muted);background:var(--paper);
  border:1px solid var(--line);border-radius:999px;padding:3px 11px;
}
.game-row:hover .row-facts li{background:var(--surface)}
.row-arrow{font-size:22px;color:var(--muted);transition:transform .18s ease,color .18s ease;text-align:center}
.game-row:hover .row-arrow{transform:translateX(4px);color:var(--ink)}

/* ---------- 编辑精选 ---------- */
.picks{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.pick-big{
  position:relative;display:block;overflow:hidden;border-radius:var(--radius-md);
  border:1px solid var(--line);background:var(--ink);min-height:340px;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.pick-big img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;transition:transform .3s ease}
.pick-big:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.pick-big:hover img{transform:scale(1.03)}
.pick-big .pb-body{
  position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;
  min-height:340px;padding:28px;
  background:linear-gradient(180deg,rgba(16,19,17,0) 26%,rgba(16,19,17,.88) 100%);
  color:var(--paper);
}
.pick-big .pb-body h3{font-size:26px;color:var(--paper);margin:12px 0 8px}
.pick-big .pb-body p{font-size:15px;color:rgba(247,245,239,.82);max-width:34em}
.pick-big .pb-body .link-arrow{color:var(--paper);border-color:rgba(247,245,239,.6);margin-top:18px;align-self:flex-start}
.pick-big:hover .link-arrow{color:var(--acid);border-color:var(--acid)}
.pick-text{
  display:flex;flex-direction:column;justify-content:center;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:32px;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.pick-text:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.pick-text h3{font-size:24px;font-weight:800}
.pick-text p{font-size:15.5px;color:#3a3e37}
.pick-text ul{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.pick-text ul li{position:relative;padding-left:18px;font-size:14.5px;color:var(--muted)}
.pick-text ul li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--acid)}

/* ---------- 会员权益提示 ---------- */
.benefits{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.benefit{
  border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;background:var(--paper);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.benefit:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:var(--shadow-soft)}
.benefit .num{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--clay)}
.benefit h3{font-size:20px;font-weight:700;margin:10px 0 8px}
.benefit p{font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.faq-side h2{font-size:clamp(26px,3vw,38px);font-weight:800}
.faq-side p{margin-top:14px;font-size:15.5px;color:var(--muted);max-width:30em}
.faq-side .link-arrow{margin-top:22px}
.faq-list details{
  border-bottom:1px solid var(--line);padding:4px 0;
}
.faq-list details:first-child{border-top:1px solid var(--line)}
.faq-list summary{
  display:flex;align-items:center;gap:16px;min-height:60px;padding:12px 2px;
  font-size:16.5px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"▾";margin-left:auto;color:var(--muted);font-size:13px;
  transition:transform .2s ease,color .2s ease;
}
.faq-list details[open] summary::after{transform:rotate(180deg);color:var(--ink)}
.faq-list summary:hover{color:var(--clay)}
.faq-list .ans{padding:0 2px 20px;font-size:15.5px;line-height:1.85;color:#3a3e37;max-width:46em}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:var(--paper);padding:64px 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;opacity:.08;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.cta-band h2{font-size:clamp(26px,3.2vw,40px);font-weight:800;color:var(--acid);line-height:1.2;max-width:16em}
.cta-band p{margin-top:16px;font-size:15.5px;color:rgba(247,245,239,.82);max-width:36em}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-note{font-size:13.5px;color:rgba(247,245,239,.66);line-height:1.8}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .flogo{font-size:19px;font-weight:800;margin-bottom:14px;letter-spacing:-.02em}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(247,245,239,.7);max-width:30em}
.footer-col h4{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:rgba(247,245,239,.55);margin-bottom:16px;font-weight:700}
.footer-col ul li+li{margin-top:10px}
.footer-col a{font-size:14.5px;color:rgba(247,245,239,.85);transition:color .16s}
.footer-col a:hover{color:var(--acid)}
.footer-bottom{
  border-top:1px solid rgba(247,245,239,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:22px 0 28px;font-size:13px;color:rgba(247,245,239,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 20px}
  .nav-main{display:none}
  .mega-wrap{display:none}
  .nav-burger{display:inline-flex}
  .mobile-drawer{display:block;max-height:0;overflow:hidden;transition:max-height .3s ease;background:var(--paper);border-top:1px solid transparent}
  .nav-toggle:checked ~ .mobile-drawer{max-height:80vh;overflow-y:auto;border-top-color:var(--line)}
  .nav-toggle:checked ~ .header-inner .nav-burger span{background:transparent}
  .nav-toggle:checked ~ .header-inner .nav-burger span::before{transform:translateY(6px) rotate(45deg)}
  .nav-toggle:checked ~ .header-inner .nav-burger span::after{transform:translateY(-6px) rotate(-45deg)}
  .cat-hero-inner{grid-template-columns:1fr;gap:36px}
  .cat-hero-media{min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .stack{position:static;width:auto;aspect-ratio:4/3}
  .stack-b{border-color:var(--line)}
  .game-row{grid-template-columns:240px 1fr;gap:22px}
  .row-arrow{display:none}
  .picks{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .benefit-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:56px 0}
  .cat-hero{padding:28px 0 52px}
  .cat-hero h1{font-size:clamp(28px,7.6vw,38px)}
  .lede{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-facts{margin-top:28px}
  .hero-facts li{padding-right:16px;margin-right:16px;min-width:0;flex:1 1 40%;border-right:0;margin-bottom:14px}
  .hero-facts strong{font-size:22px}
  .game-row{grid-template-columns:1fr;gap:16px;padding:22px 6px}
  .row-media{aspect-ratio:16/9}
  .row-body h3{font-size:19.5px}
  .benefit-grid{grid-template-columns:1fr}
  .pick-text{padding:24px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .cat-hero-media{grid-template-columns:1fr}
  .stack-b{display:none}
  .section-head{margin-bottom:24px}
  .filter-inner{padding:12px 0 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;font-size:12.5px}
  .cta-band{padding:48px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}