/* roulang page: index */
:root{
  --bg:#090d16;
  --bg-soft:#0d1321;
  --panel:#11192a;
  --panel-2:#151f33;
  --panel-3:#1b2540;
  --line:#2a3550;
  --line-soft:rgba(255,255,255,.08);
  --text:#f3f6ff;
  --muted:#a8b2c8;
  --faint:#6f7893;
  --accent:#71efc0;
  --accent-2:#ffbf61;
  --accent-3:#9a85ff;
  --danger:#ff6f8e;
  --shadow:0 14px 0 rgba(0,0,0,.22);
  --shadow-soft:0 18px 34px rgba(0,0,0,.28);
  --radius:18px;
  --radius-lg:24px;
  --radius-sm:14px;
  --space:clamp(1rem,2.2vw,1.4rem);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(145,120,255,.16), transparent 24%),
    radial-gradient(circle at 90% 8%, rgba(113,239,192,.15), transparent 22%),
    radial-gradient(circle at 85% 92%, rgba(255,191,97,.12), transparent 20%),
    linear-gradient(180deg, #060913 0%, #090d16 36%, #070b12 100%);
  min-height:100vh;
  overflow-x:hidden;
}
body::before,
body::after{
  content:"";
  position:fixed;
  inset:auto;
  pointer-events:none;
  z-index:0;
}
body::before{
  top:0;left:0;right:0;height:100%;
  background:
    linear-gradient(transparent 95%, rgba(255,255,255,.04) 96%),
    linear-gradient(90deg, transparent 95%, rgba(255,255,255,.04) 96%);
  background-size:100% 38px, 38px 100%;
  opacity:.18;
}
body::after{
  width:34rem;height:34rem;
  right:-12rem;bottom:-8rem;
  background: radial-gradient(circle, rgba(113,239,192,.16), transparent 58%);
  filter: blur(12px);
}
a{color:inherit;text-decoration:none;transition:all .18s ease}
a:hover{color:inherit}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
::selection{background:rgba(113,239,192,.28);color:var(--text)}
:focus-visible{
  outline:2px solid rgba(113,239,192,.85);
  outline-offset:3px;
}
.grid-container,
.container{
  max-width:76rem;
  padding-left:clamp(1rem,2.4vw,1.4rem);
  padding-right:clamp(1rem,2.4vw,1.4rem);
}
.page-shell{position:relative;z-index:1}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:blur(16px);
  background:rgba(7,10,17,.82);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-bar{
  display:flex;
  align-items:center;
  gap:.9rem;
  padding:.95rem 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:.8rem;
  min-width:0;
  flex:0 0 auto;
}
.brand-mark{
  width:2.9rem;
  height:2.9rem;
  display:grid;
  place-items:center;
  padding:.22rem;
  border-radius:16px;
  background:
    linear-gradient(145deg, rgba(113,239,192,1), rgba(255,191,97,1));
  color:#09121c;
  font-size:.74rem;
  font-weight:900;
  letter-spacing:.05em;
  box-shadow:0 12px 24px rgba(0,0,0,.28);
}
.brand-text{
  min-width:0;
}
.brand-text strong{
  display:block;
  font-size:1.04rem;
  line-height:1.2;
  letter-spacing:.02em;
}
.brand-text small{
  display:block;
  color:var(--muted);
  margin-top:.16rem;
  font-size:.83rem;
}
.chip-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:.55rem;
  flex:1 1 auto;
  overflow-x:auto;
  padding:.3rem .2rem .4rem;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
}
.chip-nav::-webkit-scrollbar{display:none}
.nav-chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.35rem;
  padding:.7rem 1rem;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.09);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  font-weight:700;
  font-size:.92rem;
  letter-spacing:.01em;
  scroll-snap-align:start;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.nav-chip:hover,
.nav-chip:focus-visible{
  transform:translateY(-1px);
  color:var(--text);
  border-color:rgba(113,239,192,.36);
  box-shadow:0 0 0 3px rgba(113,239,192,.1);
}
.nav-chip.is-active{
  color:#081017;
  background:linear-gradient(135deg, rgba(113,239,192,1), rgba(255,191,97,1));
  border-color:transparent;
  box-shadow:0 10px 24px rgba(113,239,192,.16);
}
.button,
.button:link,
.button:visited{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.4rem;
  min-height:2.95rem;
  padding:.82rem 1.2rem;
  border-radius:14px;
  border:1px solid transparent;
  font-weight:800;
  letter-spacing:.01em;
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease, background .18s ease, border-color .18s ease;
  box-shadow:var(--shadow);
}
.button:hover,
.button:focus-visible{
  transform:translateY(-2px);
  filter:brightness(1.05);
}
.primary-cta{
  background:linear-gradient(135deg, #71efc0 0%, #ffbf61 100%);
  color:#09121c;
}
.primary-cta:hover,
.primary-cta:focus-visible{
  box-shadow:0 14px 0 rgba(0,0,0,.18), 0 0 26px rgba(113,239,192,.16);
}
.secondary-cta{
  background:rgba(255,255,255,.04);
  color:var(--text);
  border-color:rgba(255,255,255,.1);
  box-shadow:0 10px 0 rgba(0,0,0,.18);
}
.secondary-cta:hover,
.secondary-cta:focus-visible{
  background:rgba(255,255,255,.07);
  border-color:rgba(113,239,192,.24);
}
.ghost-cta{
  background:transparent;
  color:var(--accent);
  border-color:rgba(113,239,192,.22);
  box-shadow:none;
}
.ghost-cta:hover,
.ghost-cta:focus-visible{
  background:rgba(113,239,192,.08);
}
main{position:relative;z-index:1;padding-bottom:2rem}
.section-block{
  padding:clamp(2.2rem,4vw,4.1rem) 0;
}
.hero-block{
  padding-top:clamp(1.3rem,2.6vw,2.2rem);
}
.hero-shell,
.panel-shell,
.cta-box,
.section-card,
.faq-item{
  position:relative;
  background:linear-gradient(180deg, rgba(16,23,38,.96), rgba(11,16,28,.96));
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
  overflow:hidden;
}
.hero-shell::before,
.panel-shell::before,
.cta-box::before,
.section-card::before,
.faq-item::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at top right, rgba(113,239,192,.09), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255,191,97,.08), transparent 24%);
  pointer-events:none;
}
.pixel-frame{
  position:relative;
}
.pixel-frame::after{
  content:"";
  position:absolute;
  inset:12px;
  border-radius:calc(var(--radius-lg) - 6px);
  border:1px solid rgba(255,255,255,.05);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  padding:clamp(1.1rem,2vw,1.7rem);
}
.hero-copy,
.hero-stage,
.hero-side{
  position:relative;
  z-index:1;
}
.eyebrow,
.kicker,
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.42rem .75rem;
  border-radius:999px;
  border:1px solid rgba(113,239,192,.22);
  background:rgba(113,239,192,.08);
  color:var(--accent);
  font-size:.82rem;
  font-weight:800;
  letter-spacing:.03em;
}
.eyebrow.alt{
  border-color:rgba(255,191,97,.2);
  background:rgba(255,191,97,.1);
  color:var(--accent-2);
}
.hero-copy h1,
.page-title{
  margin:.9rem 0 .9rem;
  font-size:clamp(2.2rem,4vw,4rem);
  line-height:1.05;
  letter-spacing:.01em;
  font-weight:900;
}
.hero-copy p,
.section-copy,
.page-lead{
  margin:0;
  color:var(--muted);
  line-height:1.8;
  font-size:1.02rem;
}
.button-row{
  display:flex;
  flex-wrap:wrap;
  gap:.75rem;
  margin-top:1.2rem;
}
.button-row .button{
  min-width:10.5rem;
}
.stat-row{
  display:flex;
  flex-wrap:wrap;
  gap:.7rem;
  margin-top:1.1rem;
}
.stat-chip{
  display:flex;
  align-items:center;
  gap:.52rem;
  padding:.76rem .92rem;
  border-radius:14px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.stat-chip strong{
  font-size:1rem;
  color:var(--text);
}
.stat-chip span{
  color:var(--muted);
  font-size:.88rem;
}
.stage-board,
.side-board,
.cta-board,
.list-board{
  height:100%;
  position:relative;
  z-index:1;
  padding:1rem;
}
.board-head,
.section-head{
  display:flex;
  flex-direction:column;
  gap:.45rem;
}
.board-head{
  margin-bottom:1rem;
}
.board-head h2,
.section-head h2{
  margin:0;
  font-size:clamp(1.4rem,2.4vw,2.1rem);
  line-height:1.12;
  font-weight:900;
}
.board-head p,
.section-head p{
  margin:0;
  color:var(--muted);
  line-height:1.75;
  max-width:62ch;
}
.stage-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:.82rem;
}
.stage-tile,
.mini-card,
.topic-card,
.step-card,
.link-card,
.info-card,
.update-card,
.note-card{
  background:linear-gradient(180deg, rgba(22,31,50,.96), rgba(14,20,32,.96));
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-sm);
  box-shadow:0 8px 0 rgba(0,0,0,.18);
}
.stage-tile{
  min-height:7.4rem;
  padding:1rem;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:.7rem;
  transition:transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.stage-tile:hover{
  transform:translateY(-2px);
  border-color:rgba(113,239,192,.28);
  box-shadow:0 10px 0 rgba(0,0,0,.16), 0 0 24px rgba(113,239,192,.09);
}
.tile-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:2rem;
  height:2rem;
  border-radius:10px;
  background:rgba(113,239,192,.14);
  color:var(--accent);
  font-size:.82rem;
  font-weight:900;
  letter-spacing:.04em;
}
.stage-tile strong,
.step-card h3,
.topic-card h3,
.link-card h3,
.info-card h3,
.update-card h3{
  display:block;
  margin:0;
  font-size:1.02rem;
  line-height:1.32;
  font-weight:800;
}
.stage-tile span,
.step-card p,
.topic-card p,
.link-card p,
.info-card p,
.update-card p,
.note-card p{
  color:var(--muted);
  margin:0;
  line-height:1.7;
  font-size:.93rem;
}
.progress-bar{
  width:100%;
  height:.55rem;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  overflow:hidden;
}
.progress-bar span{
  display:block;
  height:100%;
  border-radius:inherit;
  background:linear-gradient(90deg, var(--accent), var(--accent-2));
}
.side-stack{
  display:grid;
  gap:.82rem;
}
.mini-card{
  padding:1rem;
}
.mini-card ul,
.check-list,
.link-list,
.update-list{
  list-style:none;
  padding:0;
  margin:0;
}
.check-list li,
.update-list li{
  position:relative;
  padding-left:1.25rem;
  color:var(--muted);
  line-height:1.75;
}
.check-list li::before,
.update-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.68rem;
  width:.58rem;
  height:.58rem;
  border-radius:999px;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow:0 0 0 4px rgba(113,239,192,.08);
}
.side-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:.65rem;
}
.side-stats .mini-card{
  text-align:center;
  padding:.88rem .7rem;
}
.side-stats strong{
  display:block;
  font-size:1.25rem;
  line-height:1.1;
  font-weight:900;
}
.side-stats span{
  color:var(--muted);
  font-size:.84rem;
}
.section-head-wrap{
  display:flex;
  flex-direction:column;
  gap:.75rem;
  margin-bottom:1.2rem;
}
.section-head-wrap .section-head p{
  max-width:58ch;
}
.step-grid,
.topic-grid,
.card-grid,
.faq-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1rem;
}
.step-card,
.topic-card,
.link-card,
.info-card,
.update-card{
  padding:1rem;
  transition:transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.step-card:hover,
.topic-card:hover,
.link-card:hover,
.info-card:hover,
.update-card:hover{
  transform:translateY(-2px);
  border-color:rgba(113,239,192,.25);
}
.step-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:2.15rem;
  height:2.15rem;
  border-radius:12px;
  background:rgba(255,191,97,.12);
  color:var(--accent-2);
  font-weight:900;
  margin-bottom:.85rem;
}
.step-card h3,
.topic-card h3,
.link-card h3{
  margin-bottom:.45rem;
}
.step-card p,
.topic-card p,
.link-card p{
  margin-bottom:.9rem;
}
.card-meta{
  display:flex;
  flex-wrap:wrap;
  gap:.45rem;
  align-items:center;
  justify-content:flex-start;
  margin-top:auto;
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  padding:.34rem .62rem;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  font-size:.76rem;
  font-weight:700;
}
.badge-soft.active{
  background:rgba(113,239,192,.1);
  border-color:rgba(113,239,192,.24);
  color:var(--accent);
}
.card-action{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.55rem .9rem;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-weight:800;
  box-shadow:0 8px 0 rgba(0,0,0,.14);
}
.card-action:hover,
.card-action:focus-visible{
  background:rgba(113,239,192,.08);
  border-color:rgba(113,239,192,.24);
}
.link-card{
  display:flex;
  flex-direction:column;
  gap:.55rem;
}
.link-card .link-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.75rem;
}
.link-card .link-top .badge-soft{
  flex:0 0 auto;
}
.link-card .link-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.75rem;
  margin-top:auto;
}
.link-card .link-title{
  margin:0;
}
.link-card .link-note{
  color:var(--faint);
  font-size:.82rem;
}
.focus-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1rem;
}
.focus-card{
  padding:1rem;
  border-radius:var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(20,28,44,.96), rgba(12,17,28,.96));
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 8px 0 rgba(0,0,0,.18);
}
.focus-card h3{
  margin:.6rem 0 .45rem;
}
.focus-card p{
  margin:0;
  color:var(--muted);
  line-height:1.7;
}
.focus-card .focus-chip{
  display:inline-flex;
  align-items:center;
  padding:.32rem .58rem;
  border-radius:999px;
  background:rgba(145,120,255,.12);
  color:#c9bfff;
  font-size:.76rem;
  font-weight:800;
}
.news-grid{
  display:grid;
  grid-template-columns:1.35fr .95fr;
  gap:1rem;
}
.news-rail{
  padding:1rem;
}
.news-rail .news-item{
  display:grid;
  gap:.25rem;
  padding:.95rem 0;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.news-rail .news-item:first-child{
  padding-top:0;
}
.news-rail .news-item:last-child{
  border-bottom:none;
  padding-bottom:0;
}
.news-title{
  font-size:1rem;
  font-weight:800;
  line-height:1.5;
}
.news-title:hover,
.news-title:focus-visible{
  color:var(--accent);
}
.news-note{
  color:var(--faint);
  font-size:.84rem;
}
.news-side{
  padding:1rem;
}
.news-side .side-stats{
  margin-top:.9rem;
}
.news-side .mini-card{
  background:rgba(255,255,255,.03);
}
.faq-grid{
  grid-template-columns:repeat(2,minmax(0,1fr));
}
.faq-item{
  padding:0;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:1rem 1.05rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.8rem;
  font-weight:800;
  line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:1.8rem;
  height:1.8rem;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:rgba(255,255,255,.05);
  color:var(--accent);
  font-weight:900;
}
.faq-item[open] summary::after{
  content:"–";
  background:rgba(113,239,192,.12);
}
.faq-item .faq-body{
  padding:0 1.05rem 1rem;
  color:var(--muted);
  line-height:1.78;
}
.cta-box{
  padding:clamp(1.2rem,2.4vw,1.7rem);
}
.cta-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:1rem;
  align-items:center;
}
.cta-copy h2{
  margin:.15rem 0 .65rem;
  font-size:clamp(1.45rem,2.6vw,2.2rem);
  line-height:1.12;
  font-weight:900;
}
.cta-copy p{
  margin:0;
  color:var(--muted);
  line-height:1.8;
  max-width:58ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:.7rem;
}
.cta-actions .button{
  min-width:10.2rem;
}
.form-row{
  display:flex;
  gap:.7rem;
  flex-wrap:wrap;
  margin-top:1rem;
}
.form-row input,
.form-row textarea,
.form-row select{
  flex:1 1 16rem;
  min-height:3rem;
  padding:.85rem 1rem;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.1);
  background:#0c1422;
  color:var(--text);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}
.form-row input::placeholder,
.form-row textarea::placeholder{
  color:#7d879e;
}
.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus{
  border-color:rgba(113,239,192,.42);
  outline:none;
  box-shadow:0 0 0 3px rgba(113,239,192,.12);
}
.site-footer{
  position:relative;
  z-index:1;
  padding:1.4rem 0 2rem;
}
.footer-shell{
  padding:1rem 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.15fr .9fr .85fr;
  gap:1rem;
  align-items:start;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:.65rem;
  font-weight:900;
  margin-bottom:.7rem;
}
.footer-copy{
  color:var(--muted);
  line-height:1.8;
  margin:0;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:.5rem;
}
.footer-links a{
  color:var(--muted);
  font-weight:700;
}
.footer-links a:hover,
.footer-links a:focus-visible{
  color:var(--accent);
}
.footer-note{
  color:var(--faint);
  line-height:1.8;
  margin:0;
  font-size:.92rem;
}
.hero-lede{
  display:grid;
  gap:.65rem;
}
.hero-belt{
  display:flex;
  flex-wrap:wrap;
  gap:.55rem;
  margin-top:1rem;
}
.hero-belt .badge-soft{
  background:rgba(255,255,255,.04);
}
.board-divider{
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
  margin:1rem 0;
}
.list-shell{
  display:grid;
  gap:1rem;
}
.list-shell .step-card{
  min-height:100%;
}
.topic-board{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:1rem;
}
.topic-board .panel-shell{
  padding:1rem;
}
.topic-board .topic-stack{
  display:grid;
  gap:.82rem;
}
.topic-board .topic-stack .topic-card{
  padding:1rem;
}
.topic-grid-two{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1rem;
}
.note-card{
  padding:1rem;
}
.note-card ul{
  margin:0;
  padding-left:1.15rem;
  color:var(--muted);
  line-height:1.8;
}
.note-card li + li{
  margin-top:.35rem;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:.55rem;
}
.tag-row .tag-pill{
  background:rgba(255,255,255,.04);
  color:var(--muted);
  border-color:rgba(255,255,255,.09);
}
.tag-row .tag-pill.is-active{
  background:rgba(113,239,192,.1);
  color:var(--accent);
  border-color:rgba(113,239,192,.26);
}
.detail-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:1rem;
}
.detail-grid .panel-shell{
  padding:1rem;
}
.detail-grid .mini-card{
  padding:1rem;
}
@media (max-width: 64em){
  .header-bar{
    flex-wrap:wrap;
    gap:.7rem;
  }
  .chip-nav{
    order:3;
    width:100%;
    justify-content:flex-start;
    padding-top:.15rem;
  }
  .primary-cta{
    order:2;
    margin-left:auto;
  }
  .hero-grid,
  .cta-grid,
  .news-grid,
  .topic-board,
  .detail-grid,
  .footer-grid{
    grid-template-columns:1fr;
  }
  .step-grid,
  .topic-grid,
  .focus-grid,
  .card-grid,
  .faq-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}
@media (max-width: 48em){
  .hero-copy h1,
  .page-title{
    font-size:clamp(1.9rem,7vw,2.7rem);
  }
  .button-row,
  .cta-actions,
  .form-row{
    flex-direction:column;
    align-items:stretch;
  }
  .button-row .button,
  .cta-actions .button{
    width:100%;
    min-width:0;
  }
  .stat-row,
  .hero-belt,
  .tag-row{
    gap:.5rem;
  }
  .stage-grid,
  .step-grid,
  .topic-grid,
  .focus-grid,
  .card-grid,
  .faq-grid{
    grid-template-columns:1fr;
  }
  .side-stats{
    grid-template-columns:1fr;
  }
  .nav-chip{
    padding:.66rem .9rem;
  }
  .hero-shell,
  .cta-box,
  .panel-shell,
  .section-card,
  .faq-item{
    border-radius:20px;
  }
}
@media (max-width: 32.5em){
  .header-bar{
    align-items:flex-start;
  }
  .brand{
    flex:1 1 auto;
  }
  .primary-cta{
    width:100%;
  }
  .button,
  .card-action{
    width:100%;
  }
  .news-rail .news-item,
  .focus-card,
  .step-card,
  .topic-card,
  .link-card,
  .info-card,
  .update-card,
  .mini-card,
  .note-card{
    padding:.9rem;
  }
}

/* roulang page: category2 */
:root{
      --bg:#0b0f14;
      --bg-2:#0f141b;
      --panel:#111823;
      --panel-2:#161f2c;
      --panel-3:#1b2533;
      --line:#2b3647;
      --line-2:#3a4760;
      --text:#f2f6fb;
      --muted:#9ba7b8;
      --soft:#7f8b9d;
      --accent:#35d2c3;
      --accent-2:#f4b84a;
      --accent-3:#b286ff;
      --accent-4:#ff8b5c;
      --success:#7ddc8a;
      --warning:#f6d365;
      --danger:#ff6b6b;
      --shadow:0 10px 0 rgba(0,0,0,.22), 0 22px 36px rgba(0,0,0,.28);
      --shadow-soft:0 10px 22px rgba(0,0,0,.22);
      --radius:18px;
      --radius-sm:14px;
      --radius-xs:10px;
      --space-xl:clamp(4rem,6vw,6.5rem);
      --space-lg:clamp(2.25rem,4vw,3.5rem);
      --space-md:clamp(1.2rem,2vw,1.8rem);
      --space-sm:.9rem;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Segoe UI",sans-serif;
      line-height:1.65;
      background:
        radial-gradient(circle at 12% 10%, rgba(53,210,195,.16), transparent 24%),
        radial-gradient(circle at 88% 0%, rgba(178,134,255,.14), transparent 22%),
        radial-gradient(circle at 85% 90%, rgba(244,184,74,.12), transparent 18%),
        linear-gradient(180deg, #0a0e13 0%, #0b1016 45%, #0a0e13 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.26), rgba(0,0,0,.05) 50%, rgba(0,0,0,.26));
      opacity:.22;
      z-index:-1;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color .2s ease, transform .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, opacity .2s ease;
    }
    img{max-width:100%; display:block}
    button, .button, input, summary{
      font:inherit;
    }
    button, .button{
      border-radius:999px;
    }
    .grid-container{
      width:min(var(--container), calc(100% - 2rem));
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      background:rgba(10,14,20,.96);
      border-bottom:1px solid rgba(255,255,255,.08);
      box-shadow:0 8px 24px rgba(0,0,0,.14);
    }
    .header-bar{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:1rem;
      padding:.85rem 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:.8rem;
      min-width:max-content;
      flex:0 0 auto;
    }
    .brand-mark,
    .footer-brand .brand-mark{
      width:2.6rem;
      height:2.6rem;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(145deg, rgba(53,210,195,.2), rgba(178,134,255,.18));
      border:1px solid rgba(255,255,255,.14);
      color:var(--text);
      font-size:.82rem;
      letter-spacing:.08em;
      box-shadow:var(--shadow-soft);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:.35rem;
      border:1px solid rgba(255,255,255,.12);
      border-radius:10px;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      gap:.12rem;
      line-height:1.2;
    }
    .brand-text strong{
      font-size:1.02rem;
      letter-spacing:.02em;
      font-weight:800;
    }
    .brand-text small{
      color:var(--muted);
      font-size:.8rem;
    }
    .chip-nav{
      display:flex;
      align-items:center;
      gap:.55rem;
      flex:1 1 auto;
      justify-content:center;
      overflow-x:auto;
      scrollbar-width:none;
      padding:.1rem .2rem;
      margin:0 .25rem;
    }
    .chip-nav::-webkit-scrollbar{display:none}
    .nav-chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:.56rem 1rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.11);
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
      color:var(--muted);
      white-space:nowrap;
      font-size:.94rem;
      letter-spacing:.01em;
      box-shadow:inset 0 -1px 0 rgba(255,255,255,.03);
    }
    .nav-chip:hover,
    .nav-chip:focus{
      color:var(--text);
      border-color:rgba(53,210,195,.45);
      transform:translateY(-1px);
      box-shadow:0 0 0 1px rgba(53,210,195,.14), 0 10px 18px rgba(0,0,0,.18);
      outline:none;
    }
    .nav-chip.is-active{
      color:#081014;
      border-color:transparent;
      background:linear-gradient(135deg, var(--accent), #9cf1e8);
      box-shadow:0 0 0 1px rgba(255,255,255,.05), 0 14px 18px rgba(53,210,195,.2);
      font-weight:700;
    }
    .primary-cta{
      flex:0 0 auto;
      min-height:44px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.45rem;
      padding:.72rem 1.08rem;
      border-radius:999px;
      border:1px solid rgba(244,184,74,.55);
      background:linear-gradient(135deg, rgba(244,184,74,.98), rgba(255,164,97,.92));
      color:#201303;
      font-weight:800;
      letter-spacing:.01em;
      box-shadow:0 10px 22px rgba(244,184,74,.14);
    }
    .primary-cta:hover,
    .primary-cta:focus{
      transform:translateY(-1px);
      color:#140c03;
      box-shadow:0 0 0 1px rgba(244,184,74,.2), 0 16px 26px rgba(244,184,74,.2);
      outline:none;
    }
    .secondary-cta,
    .ghost-cta{
      min-height:44px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.45rem;
      padding:.72rem 1.02rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.03);
      color:var(--text);
      font-weight:700;
    }
    .secondary-cta:hover,
    .secondary-cta:focus,
    .ghost-cta:hover,
    .ghost-cta:focus{
      border-color:rgba(53,210,195,.44);
      background:rgba(53,210,195,.08);
      transform:translateY(-1px);
      outline:none;
    }
    .page-wrap{
      position:relative;
      padding-bottom:3rem;
    }
    .page-section{
      padding:var(--space-lg) 0;
    }
    .hero-panel,
    .panel,
    .info-panel,
    .faq-panel,
    .cta-panel,
    .task-card,
    .entry-card,
    .sample-card,
    .highlight-card,
    .compare-card{
      background:linear-gradient(180deg, rgba(22,31,44,.98), rgba(15,20,29,.98));
      border:1px solid rgba(255,255,255,.08);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .hero-panel{
      padding:clamp(1.2rem,3vw,1.8rem);
    }
    .hero-panel::before,
    .panel::before,
    .info-panel::before,
    .faq-panel::before,
    .cta-panel::before,
    .task-card::before,
    .entry-card::before,
    .sample-card::before,
    .highlight-card::before,
    .compare-card::before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(90deg, rgba(255,255,255,.045) 0, rgba(255,255,255,0) 20%),
        linear-gradient(180deg, rgba(255,255,255,.04), transparent 18%);
      opacity:.55;
    }
    .hero-topline{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      flex-wrap:wrap;
      margin-bottom:1rem;
    }
    .flash-strip{
      display:inline-flex;
      align-items:center;
      gap:.65rem;
      padding:.62rem .9rem;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.09);
      color:var(--muted);
      font-size:.92rem;
    }
    .flash-dot{
      width:.6rem;
      height:.6rem;
      border-radius:50%;
      background:var(--warning);
      box-shadow:0 0 0 .35rem rgba(246,211,101,.12);
      flex:0 0 auto;
    }
    .countdown{
      color:var(--text);
      font-weight:800;
      letter-spacing:.04em;
    }
    .hero-layout{
      display:grid;
      grid-template-columns:minmax(0, 1.1fr) minmax(0, .9fr);
      gap:1.1rem;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:100%;
      padding:.3rem .1rem .2rem;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.36rem .72rem;
      border-radius:999px;
      background:rgba(53,210,195,.08);
      border:1px solid rgba(53,210,195,.22);
      color:#aaf4eb;
      font-size:.83rem;
      letter-spacing:.08em;
      text-transform:uppercase;
      width:max-content;
    }
    h1,h2,h3,h4,p{margin:0}
    .hero-copy h1{
      margin-top:.85rem;
      font-size:clamp(2rem,5vw,3.8rem);
      line-height:1.06;
      letter-spacing:-.02em;
    }
    .hero-copy .lead{
      margin-top:1rem;
      color:var(--muted);
      font-size:1.03rem;
      max-width:48rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:.75rem;
      margin-top:1.25rem;
    }
    .metric-row{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:.75rem;
      margin-top:1.25rem;
    }
    .metric{
      padding:.85rem .9rem;
      border-radius:var(--radius-sm);
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      min-height:88px;
    }
    .metric strong{
      display:block;
      font-size:1.5rem;
      line-height:1;
      color:var(--text);
      margin-bottom:.35rem;
      letter-spacing:-.02em;
    }
    .metric span{
      color:var(--muted);
      font-size:.88rem;
    }
    .hero-card{
      padding:1.15rem;
      display:flex;
      flex-direction:column;
      gap:.95rem;
      min-height:100%;
      background:
        linear-gradient(150deg, rgba(21,29,42,.98), rgba(14,20,29,.98)),
        radial-gradient(circle at top right, rgba(53,210,195,.12), transparent 38%);
    }
    .hero-card-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:1rem;
    }
    .task-badge{
      display:inline-flex;
      align-items:center;
      gap:.4rem;
      padding:.38rem .65rem;
      border-radius:999px;
      border:1px solid rgba(244,184,74,.24);
      color:#ffe7a8;
      background:rgba(244,184,74,.08);
      font-size:.83rem;
    }
    .hero-card h3{
      font-size:1.28rem;
      line-height:1.2;
      margin-top:.25rem;
    }
    .hero-card p{
      color:var(--muted);
      font-size:.94rem;
    }
    .task-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:.7rem;
    }
    .task-list li{
      display:flex;
      gap:.65rem;
      align-items:flex-start;
      padding:.72rem .78rem;
      border-radius:var(--radius-sm);
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.07);
      color:#dfe7f0;
    }
    .task-list li::before{
      content:"";
      width:.7rem;
      height:.7rem;
      margin-top:.35rem;
      border-radius:2px;
      background:linear-gradient(180deg, var(--accent), #9cf1e8);
      box-shadow:0 0 0 .25rem rgba(53,210,195,.12);
      flex:0 0 auto;
    }
    .card-action{
      margin-top:auto;
      display:flex;
      gap:.6rem;
      flex-wrap:wrap;
    }
    .micro-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:.65rem;
    }
    .micro{
      padding:.75rem .8rem;
      border-radius:var(--radius-sm);
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.025);
    }
    .micro b{
      display:block;
      font-size:1rem;
      margin-bottom:.18rem;
    }
    .micro span{
      color:var(--muted);
      font-size:.84rem;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:1rem;
      margin-bottom:1rem;
      flex-wrap:wrap;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      color:#aaf4eb;
      font-size:.85rem;
      letter-spacing:.08em;
      text-transform:uppercase;
      margin-bottom:.35rem;
    }
    .section-title{
      font-size:clamp(1.4rem, 2.6vw, 2rem);
      line-height:1.15;
    }
    .section-lead{
      max-width:48rem;
      color:var(--muted);
      margin-top:.55rem;
    }
    .chip-row{
      display:flex;
      flex-wrap:wrap;
      gap:.55rem;
      overflow-x:auto;
      padding-bottom:.15rem;
      scrollbar-width:none;
    }
    .chip-row::-webkit-scrollbar{display:none}
    .chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:.55rem .9rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.03);
      color:var(--muted);
      font-size:.9rem;
      white-space:nowrap;
    }
    .chip.is-active{
      color:#091014;
      background:linear-gradient(135deg, rgba(53,210,195,1), rgba(154,240,230,1));
      border-color:transparent;
      font-weight:800;
    }
    .step-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:1rem;
    }
    .task-card,
    .entry-card,
    .sample-card,
    .highlight-card,
    .compare-card{
      padding:1.05rem;
      min-height:100%;
    }
    .step-index{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:2.1rem;
      height:2.1rem;
      border-radius:10px;
      color:#0a1014;
      font-weight:900;
      background:linear-gradient(135deg, var(--accent-2), #ffe18c);
      box-shadow:0 8px 18px rgba(244,184,74,.14);
      margin-bottom:.85rem;
    }
    .task-card h3,
    .entry-card h3,
    .sample-card h3,
    .highlight-card h3,
    .compare-card h3{
      font-size:1.08rem;
      line-height:1.25;
      margin-bottom:.45rem;
    }
    .task-card p,
    .entry-card p,
    .sample-card p,
    .highlight-card p,
    .compare-card p{
      color:var(--muted);
      font-size:.93rem;
    }
    .card-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:.8rem;
      margin-top:1rem;
      flex-wrap:wrap;
    }
    .mini-link{
      color:#bfeee7;
      font-size:.92rem;
      font-weight:700;
    }
    .mini-link:hover{color:#ffffff}
    .panel{
      padding:1rem;
    }
    .panel-title{
      display:flex;
      align-items:center;
      gap:.55rem;
      margin-bottom:.8rem;
      font-size:1.06rem;
      font-weight:800;
    }
    .panel-title .dot{
      width:.7rem;
      height:.7rem;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 .35rem rgba(53,210,195,.12);
    }
    .info-panel{
      padding:1.2rem;
      position:sticky;
      top:106px;
    }
    .info-panel p{
      color:var(--muted);
      margin-top:.7rem;
    }
    .info-list{
      list-style:none;
      padding:0;
      margin:1rem 0 0;
      display:grid;
      gap:.7rem;
    }
    .info-list li{
      display:flex;
      gap:.6rem;
      align-items:flex-start;
      color:#d7e0ea;
      padding:.7rem .75rem;
      border-radius:var(--radius-sm);
      border:1px solid rgba(255,255,255,.07);
      background:rgba(255,255,255,.025);
    }
    .info-list li::before{
      content:"";
      width:.55rem;
      height:.55rem;
      border-radius:2px;
      background:linear-gradient(180deg, var(--accent-3), #d5c2ff);
      margin-top:.43rem;
      flex:0 0 auto;
    }
    .info-actions{
      margin-top:1rem;
      display:flex;
      flex-wrap:wrap;
      gap:.6rem;
    }
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:1rem;
    }
    .entry-card{
      display:flex;
      flex-direction:column;
    }
    .entry-card .label{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      width:max-content;
      padding:.32rem .55rem;
      border-radius:999px;
      background:rgba(53,210,195,.08);
      border:1px solid rgba(53,210,195,.18);
      color:#aaf4eb;
      font-size:.8rem;
      margin-bottom:.8rem;
    }
    .entry-card .label.alt{
      background:rgba(244,184,74,.08);
      border-color:rgba(244,184,74,.2);
      color:#ffe1aa;
    }
    .entry-card ul{
      margin:.85rem 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:.45rem;
    }
    .entry-card li{
      color:#d8e2ec;
      font-size:.92rem;
      display:flex;
      gap:.45rem;
      align-items:flex-start;
    }
    .entry-card li::before{
      content:"▸";
      color:var(--accent);
      flex:0 0 auto;
    }
    .entry-card .card-action{
      margin-top:1.15rem;
    }
    .comparison-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:1rem;
    }
    .compare-card{
      background:
        linear-gradient(180deg, rgba(20,28,40,.98), rgba(15,20,28,.98));
    }
    .compare-card .badge-line{
      display:flex;
      flex-wrap:wrap;
      gap:.5rem;
      margin-bottom:.85rem;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:.35rem .58rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      color:var(--muted);
      font-size:.8rem;
    }
    .tag.hot{
      border-color:rgba(244,184,74,.18);
      background:rgba(244,184,74,.08);
      color:#ffe1aa;
    }
    .tag.good{
      border-color:rgba(53,210,195,.2);
      background:rgba(53,210,195,.08);
      color:#aaf4eb;
    }
    .compare-card .bullet-list{
      margin:1rem 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:.55rem;
    }
    .compare-card .bullet-list li{
      color:#d9e2ec;
      display:flex;
      gap:.55rem;
      align-items:flex-start;
      font-size:.92rem;
    }
    .compare-card .bullet-list li::before{
      content:"";
      width:.5rem;
      height:.5rem;
      border-radius:2px;
      margin-top:.43rem;
      background:linear-gradient(180deg, var(--accent-2), #ffe08a);
      flex:0 0 auto;
    }
    .faq-panel{
      padding:1.15rem;
    }
    .faq-list{
      display:grid;
      gap:.8rem;
      margin-top:1rem;
    }
    details{
      border-radius:var(--radius-sm);
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      overflow:hidden;
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:1rem 1rem 1rem 1.05rem;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      font-weight:700;
      color:var(--text);
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      color:#aaf4eb;
      font-size:1.2rem;
      line-height:1;
      flex:0 0 auto;
    }
    details[open] summary::after{content:"–"}
    details .faq-body{
      padding:0 1.05rem 1rem 1.05rem;
      color:var(--muted);
    }
    .cta-panel{
      padding:1.25rem;
      background:
        radial-gradient(circle at top right, rgba(244,184,74,.15), transparent 34%),
        linear-gradient(180deg, rgba(22,31,44,.98), rgba(13,18,27,.98));
    }
    .cta-shell{
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
      gap:1rem;
      align-items:center;
    }
    .cta-panel h2{
      font-size:clamp(1.4rem,2.7vw,2rem);
      line-height:1.15;
    }
    .cta-panel p{
      color:var(--muted);
      margin-top:.6rem;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:.7rem;
      margin-top:1rem;
    }
    .cta-note{
      margin-top:.85rem;
      color:#c9d3df;
      font-size:.92rem;
    }
    .cta-side{
      padding:1rem;
      border-radius:var(--radius-sm);
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.025);
    }
    .cta-side .line{
      display:flex;
      justify-content:space-between;
      gap:1rem;
      padding:.65rem 0;
      border-bottom:1px solid rgba(255,255,255,.08);
      color:#d9e3ee;
      font-size:.94rem;
    }
    .cta-side .line:last-child{border-bottom:none}
    .cta-side .line span:last-child{color:var(--muted)}
    .site-footer{
      margin-top:var(--space-lg);
      padding:1.4rem 0 2rem;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(10,14,20,.6), rgba(9,12,18,.96));
    }
    .footer-shell{
      padding-top:.4rem;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .9fr;
      gap:1rem;
      align-items:start;
    }
    .footer-brand{
      display:inline-flex;
      align-items:center;
      gap:.8rem;
      margin-bottom:.75rem;
    }
    .footer-copy{
      color:var(--muted);
      max-width:24rem;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:.65rem;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:.45rem .78rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      color:#dbe4ee;
      font-size:.92rem;
    }
    .footer-links a:hover,
    .footer-links a:focus{
      border-color:rgba(53,210,195,.4);
      color:#ffffff;
      background:rgba(53,210,195,.08);
      transform:translateY(-1px);
      outline:none;
    }
    .footer-note{
      color:var(--muted);
      line-height:1.7;
    }
    .small-note{
      color:var(--soft);
      font-size:.88rem;
    }
    .focus-ring:focus{
      outline:2px solid rgba(53,210,195,.58);
      outline-offset:2px;
    }
    @media (max-width: 1024px){
      .hero-layout,
      .cta-shell,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .info-panel{
        position:relative;
        top:auto;
      }
      .step-grid,
      .entry-grid,
      .comparison-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .metric-row{
        grid-template-columns:repeat(3,minmax(0,1fr));
      }
    }
    @media (max-width: 768px){
      .header-bar{
        flex-wrap:wrap;
        gap:.75rem;
      }
      .chip-nav{
        order:3;
        width:100%;
        justify-content:flex-start;
        padding-bottom:.15rem;
      }
      .primary-cta{
        margin-left:auto;
      }
      .hero-copy h1{
        font-size:clamp(1.8rem,9vw,2.8rem);
      }
      .metric-row,
      .step-grid,
      .entry-grid,
      .comparison-grid{
        grid-template-columns:1fr;
      }
      .hero-panel,
      .panel,
      .info-panel,
      .faq-panel,
      .cta-panel{
        border-radius:16px;
      }
      .section-head{
        align-items:flex-start;
      }
      .brand-text small{
        max-width:14rem;
      }
    }
    @media (max-width: 520px){
      .grid-container{
        width:min(var(--container), calc(100% - 1rem));
      }
      .header-bar{
        min-height:auto;
      }
      .brand{
        width:100%;
      }
      .primary-cta{
        width:100%;
      }
      .hero-actions,
      .cta-actions,
      .info-actions,
      .card-action{
        width:100%;
      }
      .hero-actions .button,
      .cta-actions .button,
      .info-actions .button,
      .card-action .button{
        width:100%;
      }
      .flash-strip{
        width:100%;
        justify-content:space-between;
      }
      .hero-card,
      .task-card,
      .entry-card,
      .sample-card,
      .highlight-card,
      .compare-card{
        padding:.95rem;
      }
      summary{
        padding:.9rem .95rem;
      }
      .faq-panel,
      .cta-panel{
        padding:1rem;
      }
    }

/* roulang page: category1 */
:root{
    --bg:#090d16;
    --bg-soft:#0f1522;
    --panel:#131a28;
    --panel-2:#182132;
    --line:rgba(255,255,255,.10);
    --line-strong:rgba(255,255,255,.16);
    --text:#f4f7fb;
    --muted:#9aa7ba;
    --muted-2:#748196;
    --accent:#7cf1cf;
    --accent-2:#ffbc6e;
    --accent-3:#9f8bff;
    --accent-4:#ffd84a;
    --success:#8cf1a7;
    --danger:#ff8e7d;
    --shadow:0 16px 36px rgba(0,0,0,.34);
    --shadow-soft:0 10px 0 rgba(0,0,0,.18);
    --radius:22px;
    --radius-sm:16px;
    --radius-xs:12px;
    --space-lg:clamp(1.25rem,2.5vw,2rem);
    --space-md:clamp(1rem,2vw,1.4rem);
    --space-sm:.85rem;
    --transition:180ms ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    color:var(--text);
    background:
        radial-gradient(circle at 15% 15%, rgba(159,139,255,.14), transparent 28%),
        radial-gradient(circle at 80% 10%, rgba(124,241,207,.14), transparent 26%),
        radial-gradient(circle at 85% 82%, rgba(255,188,110,.10), transparent 24%),
        linear-gradient(180deg, #080b12 0%, #0a0f18 46%, #090d16 100%);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    line-height:1.7;
    overflow-x:hidden;
}
body::before,
body::after{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:-1;
}
body::before{
    background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:72px 72px;
    opacity:.16;
    mask-image:linear-gradient(180deg, rgba(0,0,0,.8), transparent 98%);
}
body::after{
    background:
        radial-gradient(circle at 50% 0%, rgba(124,241,207,.09), transparent 40%),
        radial-gradient(circle at 50% 100%, rgba(255,188,110,.06), transparent 36%);
    opacity:.9;
}
::selection{background:rgba(124,241,207,.26);color:#fff}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.16;letter-spacing:.01em}
.grid-container{
    max-width:1200px;
    padding-left:clamp(1rem,2vw,1.35rem);
    padding-right:clamp(1rem,2vw,1.35rem);
}
.site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(7,10,16,.80);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
}
.header-bar{
    display:flex;
    align-items:center;
    gap:.95rem;
    padding:.95rem 0;
}
.brand{
    display:flex;
    align-items:center;
    gap:.78rem;
    min-width:0;
    flex:0 0 auto;
}
.brand-mark{
    width:2.8rem;
    height:2.8rem;
    border-radius:16px;
    display:grid;
    place-items:center;
    color:#081019;
    font-weight:900;
    letter-spacing:.06em;
    background:linear-gradient(145deg, var(--accent), var(--accent-2));
    border:1px solid rgba(255,255,255,.22);
    box-shadow:0 0 0 1px rgba(255,255,255,.05) inset, 0 10px 24px rgba(0,0,0,.35);
}
.brand-text strong{
    display:block;
    font-size:1.02rem;
    line-height:1.2;
}
.brand-text small{
    display:block;
    color:var(--muted);
    margin-top:.14rem;
    font-size:.82rem;
}
.chip-nav{
    display:flex;
    align-items:center;
    gap:.65rem;
    flex:1 1 auto;
    overflow-x:auto;
    padding-bottom:.08rem;
    scrollbar-width:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.nav-chip{
    flex:0 0 auto;
    white-space:nowrap;
    padding:.78rem 1rem;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    color:var(--muted);
    font-weight:700;
    letter-spacing:.01em;
    transition:transform var(--transition), border-color var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
}
.nav-chip:hover{
    transform:translateY(-1px);
    color:var(--text);
    border-color:rgba(124,241,207,.36);
    background:rgba(124,241,207,.08);
    box-shadow:0 0 0 1px rgba(124,241,207,.08) inset;
}
.nav-chip.is-active{
    color:var(--text);
    border-color:rgba(124,241,207,.42);
    background:linear-gradient(145deg, rgba(124,241,207,.18), rgba(159,139,255,.15));
    box-shadow:0 0 0 1px rgba(124,241,207,.10) inset;
}
.primary-cta,
.button,
.play-button,
.card-button{
    transition:transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition), filter var(--transition);
}
.primary-cta{
    flex:0 0 auto;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:.86rem 1.12rem;
    border-radius:14px;
    background:linear-gradient(145deg, var(--accent), var(--accent-2));
    color:#07111a;
    font-weight:900;
    border:1px solid rgba(255,255,255,.08);
    box-shadow:0 10px 26px rgba(0,0,0,.24);
}
.primary-cta:hover{
    transform:translateY(-1px);
    filter:brightness(1.04);
    box-shadow:0 14px 30px rgba(0,0,0,.30);
}
.primary-cta:focus-visible,
.button:focus-visible,
.nav-chip:focus-visible,
.play-button:focus-visible,
.card-button:focus-visible,
.mini-chip:focus-visible,
details summary:focus-visible{
    outline:2px solid rgba(124,241,207,.9);
    outline-offset:2px;
}
.page-main{padding-bottom:2rem}
.hero-section{
    padding:1.35rem 0 .9rem;
}
.hero-shell,
.section-shell,
.cta-shell,
.note-card,
.task-card,
.sample-card,
.faq-item,
.filter-shell{
    position:relative;
    overflow:hidden;
    border:1px solid var(--line);
    background:linear-gradient(180deg, rgba(19,26,40,.95), rgba(12,16,26,.96));
    box-shadow:var(--shadow);
}
.hero-shell{
    border-radius:28px;
}
.hero-shell::before,
.section-shell::before,
.cta-shell::before{
    content:"";
    position:absolute;
    inset:0;
    background:
        radial-gradient(circle at 12% 12%, rgba(124,241,207,.14), transparent 24%),
        radial-gradient(circle at 86% 14%, rgba(255,188,110,.11), transparent 20%),
        linear-gradient(125deg, rgba(255,255,255,.03), transparent 34%);
    pointer-events:none;
}
.hero-grid{
    padding:clamp(1.2rem,2.1vw,2rem);
    align-items:stretch;
}
.hero-copy{
    display:flex;
    flex-direction:column;
    justify-content:center;
    min-height:100%;
    padding-right:.2rem;
}
.hero-kicker,
.eyebrow{
    color:var(--accent);
    font-size:.76rem;
    font-weight:800;
    letter-spacing:.18em;
    text-transform:uppercase;
}
.hero h1{
    margin:.55rem 0 .8rem;
    font-size:clamp(2.1rem,4.8vw,4.2rem);
    line-height:1.02;
}
.hero-lead{
    max-width:36rem;
    color:#d5ddee;
    font-size:1.04rem;
}
.hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:.8rem;
    margin:1.25rem 0 1rem;
}
.button{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:.45rem;
    padding:.88rem 1.15rem;
    border-radius:14px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    color:var(--text);
    font-weight:800;
    line-height:1;
    box-shadow:0 6px 18px rgba(0,0,0,.18);
}
.button:hover{
    transform:translateY(-1px);
    border-color:rgba(124,241,207,.34);
    background:rgba(124,241,207,.08);
}
.button.primary{
    background:linear-gradient(145deg, var(--accent), var(--accent-2));
    color:#071019;
    border-color:transparent;
    box-shadow:0 10px 24px rgba(0,0,0,.24);
}
.button.primary:hover{
    filter:brightness(1.04);
    box-shadow:0 14px 30px rgba(0,0,0,.32);
}
.hero-tags{
    display:flex;
    flex-wrap:wrap;
    gap:.55rem;
}
.tag,
.badge,
.mini-chip{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:.25rem;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    color:var(--muted);
    font-size:.86rem;
    font-weight:700;
}
.tag{
    padding:.38rem .72rem;
}
.mini-chip{
    padding:.58rem .86rem;
}
.mini-chip:hover{
    transform:translateY(-1px);
    color:var(--text);
    border-color:rgba(124,241,207,.33);
    background:rgba(124,241,207,.08);
}
.mini-chip.is-active{
    color:var(--text);
    background:linear-gradient(145deg, rgba(124,241,207,.18), rgba(159,139,255,.16));
    border-color:rgba(124,241,207,.34);
}
.video-stage{
    height:100%;
    min-height:100%;
    border-radius:24px;
    border:1px solid rgba(124,241,207,.18);
    background:
        linear-gradient(180deg, rgba(23,32,48,.95), rgba(9,12,19,.98)),
        radial-gradient(circle at center, rgba(124,241,207,.10), transparent 40%);
    padding:1rem;
    box-shadow:0 0 0 1px rgba(255,255,255,.03) inset;
}
.stage-ribbon{
    display:inline-flex;
    align-items:center;
    padding:.32rem .68rem;
    border-radius:999px;
    background:rgba(124,241,207,.11);
    border:1px solid rgba(124,241,207,.24);
    color:var(--accent);
    font-size:.8rem;
    font-weight:800;
    letter-spacing:.08em;
    margin-bottom:.8rem;
}
.video-frame{
    position:relative;
    min-height:340px;
    border-radius:20px;
    border:1px solid rgba(255,255,255,.09);
    background:
        radial-gradient(circle at 20% 18%, rgba(159,139,255,.18), transparent 24%),
        radial-gradient(circle at 80% 15%, rgba(255,188,110,.15), transparent 20%),
        linear-gradient(140deg, rgba(25,32,48,.88), rgba(9,13,20,.96));
    overflow:hidden;
    padding:1rem;
    box-shadow:var(--shadow-soft);
}
.video-frame::before{
    content:"";
    position:absolute;
    inset:0;
    background:
        linear-gradient(180deg, rgba(255,255,255,.02), transparent 28%),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:100% 100%, 28px 28px;
    opacity:.36;
    pointer-events:none;
}
.video-frame::after{
    content:"";
    position:absolute;
    inset:auto 0 0 0;
    height:44%;
    background:linear-gradient(180deg, transparent, rgba(0,0,0,.30));
    pointer-events:none;
}
.play-button{
    position:absolute;
    left:50%;
    top:48%;
    transform:translate(-50%,-50%);
    width:4.9rem;
    height:4.9rem;
    border-radius:50%;
    border:1px solid rgba(255,255,255,.24);
    background:rgba(7,11,18,.78);
    color:#fff;
    font-size:1.15rem;
    font-weight:900;
    z-index:2;
    box-shadow:0 0 0 .45rem rgba(124,241,207,.12), 0 16px 32px rgba(0,0,0,.34);
}
.play-button:hover{
    transform:translate(-50%,-52%);
    box-shadow:0 0 0 .5rem rgba(124,241,207,.15), 0 18px 36px rgba(0,0,0,.38);
}
.frame-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.8rem;
    margin-bottom:1rem;
    position:relative;
    z-index:1;
}
.frame-title{
    font-weight:900;
    font-size:1rem;
}
.frame-status{
    display:inline-flex;
    align-items:center;
    padding:.28rem .64rem;
    border-radius:999px;
    color:#071019;
    background:linear-gradient(145deg, var(--accent), var(--accent-4));
    font-size:.78rem;
    font-weight:900;
}
.preview-stack{
    display:flex;
    flex-direction:column;
    gap:.68rem;
    position:relative;
    z-index:1;
}
.preview-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.8rem;
    padding:.78rem .92rem;
    border-radius:15px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.07);
    color:var(--text);
}
.preview-row span:last-child{
    color:var(--accent);
    font-weight:800;
}
.frame-footer{
    position:absolute;
    left:1rem;
    right:1rem;
    bottom:1rem;
    z-index:1;
}
.meter{
    height:10px;
    border-radius:999px;
    background:rgba(255,255,255,.08);
    overflow:hidden;
    border:1px solid rgba(255,255,255,.06);
}
.meter span{
    display:block;
    height:100%;
    border-radius:inherit;
    background:linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
    box-shadow:0 0 18px rgba(124,241,207,.22);
}
.meter-label{
    margin-top:.55rem;
    color:var(--muted);
    font-size:.88rem;
}
.filter-section{
    padding:.7rem 0 .25rem;
}
.filter-shell{
    border-radius:20px;
    padding:.9rem 1rem;
    background:rgba(15,20,31,.72);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:.8rem;
}
.filter-shell::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:2px;
    background:linear-gradient(90deg, transparent, rgba(124,241,207,.5), rgba(255,188,110,.45), transparent);
    opacity:.8;
}
.filter-label{
    color:var(--muted);
    font-size:.92rem;
    font-weight:800;
    letter-spacing:.08em;
}
.chip-row{
    display:flex;
    flex-wrap:wrap;
    gap:.55rem;
}
.content-section{
    padding:1rem 0 .25rem;
}
.section-shell,
.cta-shell{
    border-radius:26px;
    padding:clamp(1.1rem,2.1vw,1.8rem);
}
.section-shell{
    background:
        linear-gradient(180deg, rgba(18,25,39,.95), rgba(11,15,24,.97));
}
.section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:1rem;
    margin-bottom:1rem;
}
.section-head h2{
    font-size:clamp(1.4rem,2.5vw,2rem);
    margin-top:.25rem;
}
.section-summary{
    max-width:32rem;
    color:var(--muted);
    font-size:.96rem;
}
.steps-grid,
.proof-grid,
.card-grid,
.faq-grid{
    display:grid;
    gap:1rem;
}
.steps-grid{
    grid-template-columns:repeat(3,minmax(0,1fr));
}
.proof-layout{
    display:grid;
    grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);
    gap:1rem;
    align-items:start;
}
.proof-grid{
    grid-template-columns:repeat(3,minmax(0,1fr));
}
.task-card,
.sample-card,
.note-card,
.faq-item{
    border-radius:20px;
    padding:1rem;
    background:
        linear-gradient(180deg, rgba(22,29,44,.98), rgba(14,18,28,.98));
    border:1px solid rgba(255,255,255,.08);
    box-shadow:0 10px 0 rgba(0,0,0,.16);
}
.task-card:hover,
.sample-card:hover,
.note-card:hover{
    transform:translateY(-2px);
    border-color:rgba(124,241,207,.26);
}
.task-card{
    display:flex;
    flex-direction:column;
    min-height:100%;
}
.card-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.6rem;
    margin-bottom:.75rem;
}
.card-index{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:2.45rem;
    height:2.45rem;
    border-radius:14px;
    background:linear-gradient(145deg, rgba(124,241,207,.16), rgba(159,139,255,.16));
    border:1px solid rgba(124,241,207,.18);
    color:var(--accent);
    font-weight:900;
    letter-spacing:.08em;
}
.badge{
    padding:.35rem .68rem;
    color:#dce6f7;
    font-size:.78rem;
}
.task-card h3,
.sample-card h3,
.note-card h3{
    font-size:1.02rem;
    margin-bottom:.55rem;
}
.task-card p,
.sample-card p,
.note-card p,
.info-list li,
.faq-item p{
    color:#d2dae7;
    font-size:.95rem;
}
.card-button{
    align-self:flex-start;
    margin-top:auto;
    margin-top:1rem;
    padding:.76rem 1rem;
    border-radius:12px;
    font-size:.9rem;
}
.card-button.secondary{
    background:rgba(255,255,255,.05);
    color:var(--text);
}
.card-button.secondary:hover{
    background:rgba(124,241,207,.08);
}
.card-foot{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.8rem;
    margin-top:.9rem;
    color:var(--muted);
    font-size:.84rem;
}
.sample-card{
    min-height:100%;
}
.sample-metric{
    font-size:2rem;
    font-weight:900;
    line-height:1;
    margin-bottom:.6rem;
    color:var(--accent);
}
.sample-tagline{
    color:var(--muted);
    font-size:.84rem;
    margin-top:.7rem;
}
.note-card{
    background:
        radial-gradient(circle at 20% 18%, rgba(124,241,207,.12), transparent 24%),
        linear-gradient(180deg, rgba(20,28,42,.98), rgba(11,15,24,.98));
}
.note-card .note-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.8rem;
    margin-bottom:.8rem;
}
.info-list{
    display:grid;
    gap:.72rem;
}
.info-list li{
    position:relative;
    padding-left:1rem;
}
.info-list li::before{
    content:"";
    position:absolute;
    left:0;
    top:.72rem;
    width:.42rem;
    height:.42rem;
    border-radius:50%;
    background:linear-gradient(145deg, var(--accent), var(--accent-2));
    box-shadow:0 0 0 .22rem rgba(124,241,207,.08);
}
.catalog-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:1rem;
    margin-bottom:1rem;
}
.catalog-tools{
    display:flex;
    flex-wrap:wrap;
    gap:.55rem;
    margin-bottom:1rem;
}
.card-grid{
    grid-template-columns:repeat(3,minmax(0,1fr));
}
.entry-card{
    display:flex;
    flex-direction:column;
    min-height:100%;
}
.entry-card .entry-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.6rem;
    margin-bottom:.72rem;
}
.entry-card .entry-top .state{
    display:inline-flex;
    align-items:center;
    padding:.34rem .66rem;
    border-radius:999px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    color:var(--accent-2);
    font-size:.78rem;
    font-weight:800;
}
.entry-card h3{
    font-size:1.02rem;
    margin-bottom:.5rem;
}
.entry-card p{
    color:var(--muted);
}
.entry-meta{
    display:flex;
    flex-wrap:wrap;
    gap:.45rem;
    margin-top:.9rem;
}
.entry-chip{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:.3rem .62rem;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.09);
    background:rgba(255,255,255,.03);
    color:#d6deec;
    font-size:.78rem;
}
.entry-card .card-button{
    width:fit-content;
}
.faq-grid{
    grid-template-columns:minmax(0,1fr);
}
.faq-item{
    padding:0;
    overflow:hidden;
}
.faq-item + .faq-item{margin-top:.85rem}
.faq-item summary{
    list-style:none;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:.8rem;
    padding:1rem 1.1rem;
    font-weight:800;
    color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
    content:"+";
    width:2rem;
    height:2rem;
    flex:0 0 auto;
    display:grid;
    place-items:center;
    border-radius:12px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    color:var(--accent);
    font-size:1.1rem;
    transition:transform var(--transition), background var(--transition);
}
.faq-item[open] summary::after{
    content:"–";
    background:rgba(124,241,207,.10);
}
.faq-item .faq-body{
    padding:0 1.1rem 1rem;
    color:var(--muted);
}
.cta-shell{
    margin-top:1rem;
    background:
        radial-gradient(circle at 16% 16%, rgba(124,241,207,.14), transparent 22%),
        radial-gradient(circle at 84% 10%, rgba(255,188,110,.16), transparent 20%),
        linear-gradient(145deg, rgba(20,28,42,.98), rgba(11,15,24,.98));
}
.cta-grid{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:1rem;
    flex-wrap:wrap;
}
.cta-copy h2{
    font-size:clamp(1.4rem,2.6vw,2.1rem);
    margin-bottom:.45rem;
}
.cta-copy p{
    color:var(--muted);
    max-width:44rem;
}
.cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:.7rem;
}
.cta-actions .button{
    min-width:9.6rem;
}
.site-footer{
    margin-top:1rem;
    padding:1.1rem 0 1.5rem;
}
.footer-shell{
    border-radius:22px;
    border:1px solid var(--line);
    background:rgba(12,16,25,.92);
    box-shadow:var(--shadow);
    padding:1rem;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.35fr .9fr .9fr;
    gap:1rem;
}
.footer-brand{
    display:inline-flex;
    align-items:center;
    gap:.85rem;
    margin-bottom:.65rem;
    font-weight:900;
}
.footer-copy,
.footer-note{
    color:var(--muted);
    font-size:.92rem;
}
.footer-links{
    display:grid;
    gap:.5rem;
}
.footer-links a{
    display:inline-flex;
    width:fit-content;
    color:#dbe4f1;
}
.footer-links a:hover{
    color:var(--accent);
}
.footer-note{
    margin-top:.2rem;
}
.subtle-divider{
    height:1px;
    background:linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent);
    margin:1rem 0;
}
@media (max-width: 1024px){
    .steps-grid,
    .proof-grid,
    .card-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
    }
    .proof-layout{
        grid-template-columns:1fr;
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
    }
}
@media (max-width: 768px){
    .header-bar{
        flex-wrap:wrap;
        align-items:flex-start;
    }
    .brand{
        width:100%;
    }
    .chip-nav{
        order:3;
        width:100%;
        padding-bottom:.1rem;
    }
    .primary-cta{
        order:2;
        width:100%;
    }
    .hero-grid{
        padding:1rem;
    }
    .hero-shell,
    .section-shell,
    .cta-shell,
    .footer-shell{
        border-radius:20px;
    }
    .hero h1{
        font-size:clamp(1.95rem,8vw,3rem);
    }
    .hero-lead{
        font-size:1rem;
    }
    .video-frame{
        min-height:300px;
    }
    .section-head,
    .catalog-head,
    .cta-grid{
        flex-direction:column;
        align-items:flex-start;
    }
    .steps-grid,
    .proof-grid,
    .card-grid,
    .footer-grid{
        grid-template-columns:1fr;
    }
    .cta-actions .button,
    .button{
        width:100%;
    }
}
@media (max-width: 520px){
    .grid-container{
        padding-left:.85rem;
        padding-right:.85rem;
    }
    .hero-section{
        padding-top:1rem;
    }
    .hero-actions,
    .hero-tags,
    .chip-row,
    .catalog-tools{
        gap:.5rem;
    }
    .tag,
    .mini-chip,
    .nav-chip{
        font-size:.84rem;
    }
    .video-frame{
        min-height:270px;
        padding:.85rem;
    }
    .play-button{
        width:4.3rem;
        height:4.3rem;
    }
    .preview-row{
        padding:.72rem .82rem;
    }
    .task-card,
    .sample-card,
    .note-card,
    .faq-item{
        padding:.92rem;
    }
    .faq-item summary{
        padding:.92rem .95rem;
    }
    .faq-item .faq-body{
        padding:0 .95rem .95rem;
    }
}