/* roulang page: index */
:root{
  --bg:#0e0f12;
  --bg-2:#15171c;
  --bg-3:#1d2027;
  --card:#191c22;
  --card-2:#21252d;
  --text:#f4f1ea;
  --muted:#a9afbb;
  --muted-2:#7d8593;
  --border:rgba(255,255,255,.10);
  --border-2:rgba(255,255,255,.16);
  --shadow:0 20px 50px rgba(0,0,0,.35);
  --shadow-soft:0 12px 28px rgba(0,0,0,.22);
  --radius:22px;
  --radius-sm:14px;
  --radius-lg:30px;
  --primary:#ef5a38;
  --primary-2:#f28b2d;
  --accent:#c9352d;
  --accent-2:#ffb35c;
  --good:#45c48b;
  --line:#2a2f39;
  --container:1280px;
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(circle at 14% 12%, rgba(239,90,56,.15), transparent 24%),
    radial-gradient(circle at 84% 16%, rgba(242,139,45,.12), transparent 22%),
    radial-gradient(circle at 50% 100%, rgba(201,53,45,.10), transparent 28%),
    linear-gradient(180deg, #0e0f12 0%, #111319 45%, #0e0f12 100%);
  color:var(--text);
  font-family: system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  line-height:1.7;
  letter-spacing:.2px;
  overflow-x:hidden;
}
a{
  color:inherit;
  text-decoration:none;
  transition:color .22s ease, opacity .22s ease, transform .22s ease, border-color .22s ease, background-color .22s ease, box-shadow .22s ease;
}
img{max-width:100%;display:block}
button,input,select,textarea{
  font:inherit;
}
::selection{background:rgba(239,90,56,.28);color:#fff}
.container-wide{
  max-width:var(--container);
  margin:0 auto;
  padding:0 1rem;
}
.section{
  padding:5.5rem 0;
  position:relative;
}
.section.tight{padding:4rem 0}
.section-head{
  margin-bottom:1.5rem;
}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  font-size:.82rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent-2);
  margin-bottom:.85rem;
}
.section-kicker::before{
  content:"";
  width:34px;
  height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent-2));
  border-radius:99px;
}
.section-title{
  margin:0;
  font-size:clamp(1.8rem, 2.3vw, 3rem);
  line-height:1.18;
  font-weight:900;
  letter-spacing:.02em;
}
.section-subtitle{
  margin:.75rem 0 0;
  max-width:72ch;
  color:var(--muted);
  font-size:1rem;
}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(10,11,14,.84);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header::after{
  content:"";
  position:absolute;
  inset:auto 0 0;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(239,90,56,.45), transparent);
}
.header-inner{
  min-height:86px;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:1rem;
}
.nav-group{
  display:flex;
  align-items:center;
  gap:.9rem;
  flex-wrap:wrap;
}
.nav-group.right{
  justify-content:flex-end;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:.55rem .95rem;
  border-radius:999px;
  color:var(--muted);
  border:1px solid transparent;
  font-weight:700;
  font-size:.96rem;
  letter-spacing:.02em;
}
.nav-link:hover,
.nav-link:focus-visible{
  color:#fff;
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.08);
  transform:translateY(-1px);
  outline:none;
}
.nav-link.is-active{
  color:#fff;
  background:linear-gradient(180deg, rgba(239,90,56,.22), rgba(239,90,56,.10));
  border-color:rgba(239,90,56,.35);
  box-shadow:0 0 0 1px rgba(239,90,56,.12) inset;
}
.brand-wrap{
  display:flex;
  justify-content:center;
  align-items:center;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:.75rem;
  font-weight:900;
  letter-spacing:.04em;
  font-size:1.08rem;
  padding:.52rem 1rem;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.1);
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  box-shadow:var(--shadow-soft);
  white-space:nowrap;
}
.brand-mark{
  width:14px;
  height:14px;
  border-radius:50%;
  background:radial-gradient(circle at 35% 35%, #ffd7a3 0%, #ff9d57 28%, #ef5a38 58%, #a71f18 100%);
  box-shadow:0 0 18px rgba(239,90,56,.45);
}
.mobile-toggle{
  display:none;
  align-items:center;
  justify-content:space-between;
  min-height:64px;
  padding:0 .25rem;
}
.mobile-title{
  font-weight:900;
  letter-spacing:.03em;
  font-size:1rem;
}
.mobile-btn{
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.mobile-btn:focus-visible{
  outline:2px solid rgba(239,90,56,.55);
  outline-offset:2px;
}
.mobile-nav{
  display:none;
  padding:0 0 1rem;
}
.mobile-nav.is-open{
  display:block;
}
.mobile-nav .nav-group{
  flex-direction:column;
  align-items:stretch;
  gap:.5rem;
}
.mobile-nav .nav-link{
  width:100%;
  justify-content:flex-start;
  padding:.85rem 1rem;
}
.hero{
  padding:3.5rem 0 2rem;
}
.hero-shell{
  position:relative;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-lg);
  background:
    linear-gradient(140deg, rgba(255,255,255,.05), rgba(255,255,255,.02)),
    linear-gradient(180deg, rgba(25,28,34,.95), rgba(16,18,24,.94));
  box-shadow:var(--shadow);
}
.hero-shell::before,
.hero-shell::after{
  content:"";
  position:absolute;
  inset:auto;
  pointer-events:none;
}
.hero-shell::before{
  right:-12%;
  top:-18%;
  width:360px;
  height:360px;
  background:radial-gradient(circle, rgba(239,90,56,.24), transparent 64%);
  filter:blur(12px);
}
.hero-shell::after{
  left:-10%;
  bottom:-22%;
  width:320px;
  height:320px;
  background:radial-gradient(circle, rgba(242,139,45,.16), transparent 66%);
  filter:blur(10px);
}
.hero-grid{
  position:relative;
  z-index:1;
  padding:clamp(1.4rem, 3vw, 2.4rem);
}
.hero-copy{
  padding:1rem 0;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
  margin-bottom:1.1rem;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.45rem .8rem;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  color:#f7f4ee;
  border:1px solid rgba(255,255,255,.08);
  font-size:.86rem;
  line-height:1;
}
.badge strong{
  color:var(--accent-2);
  font-weight:800;
}
.hero-title{
  margin:0;
  font-size:clamp(2rem, 4.5vw, 4.35rem);
  line-height:1.08;
  font-weight:900;
  letter-spacing:.01em;
}
.hero-title .accent{
  color:#fff;
  background:linear-gradient(90deg, #fff, #ffd4b4 40%, #ff9f66 70%, #fff);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin:1rem 0 1.25rem;
  max-width:58ch;
  color:#d4d8df;
  font-size:1.05rem;
}
.hero-actions{
  display:flex;
  gap:.85rem;
  flex-wrap:wrap;
  margin:1.2rem 0 1rem;
}
.action-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:.88rem 1.2rem;
  border-radius:999px;
  font-weight:800;
  letter-spacing:.02em;
  border:1px solid transparent;
}
.action-btn.primary{
  background:linear-gradient(135deg, var(--primary), var(--primary-2));
  color:#fff;
  box-shadow:0 16px 30px rgba(239,90,56,.24);
}
.action-btn.primary:hover,
.action-btn.primary:focus-visible{
  transform:translateY(-2px);
  box-shadow:0 20px 34px rgba(239,90,56,.30);
  outline:none;
}
.action-btn.ghost{
  color:#f3efe8;
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.1);
}
.action-btn.ghost:hover,
.action-btn.ghost:focus-visible{
  background:rgba(255,255,255,.07);
  border-color:rgba(255,255,255,.15);
  transform:translateY(-2px);
  outline:none;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:.65rem;
  color:var(--muted);
  margin-top:1rem;
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.5rem .75rem;
  border-radius:999px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.06);
  font-size:.88rem;
}
.hero-panel{
  position:relative;
  padding:1rem;
}
.panel-card{
  border-radius:26px;
  border:1px solid rgba(255,255,255,.09);
  background:linear-gradient(180deg, rgba(34,38,46,.95), rgba(20,23,29,.96));
  box-shadow:var(--shadow-soft);
  padding:1rem;
}
.panel-title{
  margin:0 0 .8rem;
  font-size:1rem;
  font-weight:900;
  letter-spacing:.02em;
}
.matrix{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:.75rem;
}
.matrix-card{
  position:relative;
  overflow:hidden;
  border-radius:18px;
  padding:.95rem .9rem 1rem;
  border:1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)),
    linear-gradient(180deg, rgba(27,31,38,.98), rgba(20,22,28,.98));
  min-height:98px;
}
.matrix-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg, transparent 0%, transparent 55%, rgba(239,90,56,.14) 100%);
  opacity:.6;
}
.matrix-card strong,
.matrix-card span{
  position:relative;
  z-index:1;
}
.matrix-card strong{
  display:block;
  font-size:1.15rem;
  color:#fff;
  margin-bottom:.18rem;
}
.matrix-card span{
  color:var(--muted);
  font-size:.9rem;
}
.panel-stack{
  margin-top:.9rem;
  display:grid;
  gap:.7rem;
}
.panel-line{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:.85rem .95rem;
  border-radius:18px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.06);
}
.panel-line .left{
  display:flex;
  flex-direction:column;
  gap:.1rem;
}
.panel-line .left strong{
  font-size:.95rem;
}
.panel-line .left span{
  font-size:.88rem;
  color:var(--muted);
}
.panel-line .right{
  font-weight:800;
  color:var(--accent-2);
  white-space:nowrap;
}
.trust-strip{
  margin-top:1rem;
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:.8rem;
}
.trust-item{
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.07);
  padding:.95rem 1rem;
  display:flex;
  gap:.8rem;
  align-items:flex-start;
}
.trust-icon{
  flex:0 0 auto;
  width:40px;
  height:40px;
  border-radius:14px;
  display:grid;
  place-items:center;
  background:linear-gradient(180deg, rgba(239,90,56,.22), rgba(239,90,56,.06));
  border:1px solid rgba(239,90,56,.24);
  box-shadow:0 0 0 1px rgba(239,90,56,.08) inset;
}
.trust-icon svg{
  width:20px;
  height:20px;
  fill:#ffd0c0;
}
.trust-item strong{
  display:block;
  font-size:.98rem;
  margin-bottom:.15rem;
}
.trust-item p{
  margin:0;
  color:var(--muted);
  font-size:.9rem;
  line-height:1.55;
}
.rail-section{
  overflow:hidden;
}
.rail-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:1rem;
}
.rail-actions{
  display:flex;
  gap:.55rem;
}
.rail-btn{
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.04);
  color:#fff;
  display:grid;
  place-items:center;
  cursor:pointer;
}
.rail-btn:hover,
.rail-btn:focus-visible{
  border-color:rgba(239,90,56,.35);
  background:rgba(239,90,56,.10);
  transform:translateY(-1px);
  outline:none;
}
.rail{
  display:flex;
  gap:1rem;
  overflow-x:auto;
  padding-bottom:.6rem;
  scroll-snap-type:x proximity;
  scrollbar-width:thin;
  scrollbar-color:rgba(239,90,56,.45) rgba(255,255,255,.05);
}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:99px}
.rail::-webkit-scrollbar-thumb{background:rgba(239,90,56,.45);border-radius:99px}
.rail-card{
  position:relative;
  flex:0 0 auto;
  width:min(360px, 82vw);
  min-height:260px;
  border-radius:24px;
  overflow:hidden;
  background:linear-gradient(180deg, rgba(26,29,36,.98), rgba(17,19,24,.98));
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow-soft);
  scroll-snap-align:start;
  transform:translateZ(0);
}
.rail-card:hover{
  transform:translateY(-4px) scale(1.025);
  box-shadow:0 24px 52px rgba(0,0,0,.44);
  border-color:rgba(239,90,56,.26);
}
.cover{
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 20% 18%, rgba(255,179,92,.24), transparent 26%),
    radial-gradient(circle at 82% 22%, rgba(239,90,56,.24), transparent 22%),
    linear-gradient(135deg, rgba(255,255,255,.05), rgba(255,255,255,.01)),
    linear-gradient(180deg, #232731, #15171c);
  transform:scale(1);
  transition:transform .28s ease;
}
.rail-card:hover .cover{
  transform:scale(1.04);
}
.cover::before,
.cover::after{
  content:"";
  position:absolute;
  inset:auto;
  border-radius:50%;
  background:rgba(255,255,255,.04);
}
.cover::before{
  width:120px;height:120px;left:-18px;top:14px;
}
.cover::after{
  width:200px;height:200px;right:-60px;bottom:-80px;
}
.card-overlay{
  position:absolute;
  inset:auto 0 0;
  padding:1.1rem 1.1rem 1rem;
  background:linear-gradient(180deg, transparent, rgba(8,9,12,.55) 18%, rgba(8,9,12,.92) 100%);
}
.card-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:42px;
  height:28px;
  padding:0 .65rem;
  border-radius:999px;
  background:rgba(239,90,56,.18);
  color:#ffd9ce;
  border:1px solid rgba(239,90,56,.26);
  font-weight:900;
  font-size:.82rem;
  margin-bottom:.65rem;
}
.card-title{
  margin:0 0 .35rem;
  font-size:1.2rem;
  line-height:1.22;
  font-weight:900;
}
.card-copy{
  margin:0 0 .8rem;
  color:#d4d8df;
  font-size:.95rem;
  line-height:1.6;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:.45rem;
  margin-bottom:.85rem;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:.3rem .62rem;
  border-radius:999px;
  background:rgba(255,255,255,.07);
  color:#e9edf2;
  border:1px solid rgba(255,255,255,.08);
  font-size:.76rem;
}
.tag.hot{
  background:rgba(239,90,56,.15);
  border-color:rgba(239,90,56,.24);
  color:#ffd7ca;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  color:#fff;
  font-weight:800;
  font-size:.92rem;
}
.card-link::after{
  content:"→";
  transition:transform .22s ease;
}
.card-link:hover::after,
.card-link:focus-visible::after{
  transform:translateX(3px);
}
.grid-card{
  height:100%;
  border-radius:24px;
  border:1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02)),
    linear-gradient(180deg, rgba(25,28,34,.98), rgba(19,22,27,.98));
  box-shadow:var(--shadow-soft);
  padding:1.15rem;
  transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.grid-card:hover{
  transform:translateY(-4px);
  box-shadow:0 24px 48px rgba(0,0,0,.4);
  border-color:rgba(239,90,56,.22);
}
.grid-card h3{
  margin:.2rem 0 .55rem;
  font-size:1.2rem;
  font-weight:900;
  line-height:1.25;
}
.grid-card p{
  margin:0;
  color:var(--muted);
  font-size:.95rem;
}
.grid-card .card-link{
  margin-top:1rem;
}
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
  margin:0 0 1rem;
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:.55rem .9rem;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  color:#eef1f5;
  font-size:.88rem;
  font-weight:700;
}
.filter-chip.active,
.filter-chip:hover,
.filter-chip:focus-visible{
  border-color:rgba(239,90,56,.32);
  background:rgba(239,90,56,.12);
  transform:translateY(-1px);
  outline:none;
}
.metric-board{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1rem;
}
.metric{
  border-radius:24px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(31,35,43,.95), rgba(19,21,26,.96));
  padding:1.1rem 1.1rem 1rem;
  box-shadow:var(--shadow-soft);
}
.metric-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.8rem;
  margin-bottom:.9rem;
}
.metric-top strong{
  font-size:1rem;
  font-weight:900;
}
.metric-top span{
  font-size:.85rem;
  color:var(--accent-2);
}
.metric-num{
  font-size:2rem;
  line-height:1;
  font-weight:900;
  margin:0 0 .5rem;
}
.metric-note{
  color:var(--muted);
  margin:0;
  font-size:.95rem;
}
.bar{
  margin-top:1rem;
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  overflow:hidden;
}
.bar span{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg, var(--primary), var(--primary-2));
}
.case-wall{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:1rem;
}
.case-card{
  border-radius:24px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(25,28,34,.98), rgba(18,20,25,.98));
  padding:1.1rem;
  box-shadow:var(--shadow-soft);
  position:relative;
  overflow:hidden;
}
.case-card::before{
  content:"";
  position:absolute;
  inset:auto -8% -10% auto;
  width:140px;
  height:140px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(239,90,56,.18), transparent 68%);
}
.case-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:.8rem;
}
.case-id{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  padding:0 .72rem;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  font-weight:900;
}
.case-card h3{
  margin:.15rem 0 .55rem;
  font-size:1.12rem;
  line-height:1.3;
  font-weight:900;
}
.case-card p{
  margin:0 0 .85rem;
  color:var(--muted);
  font-size:.95rem;
}
.compare{
  display:grid;
  gap:.6rem;
}
.compare-row{
  display:grid;
  grid-template-columns:72px 1fr;
  gap:.75rem;
  align-items:center;
}
.compare-row span{
  color:var(--muted);
  font-size:.88rem;
}
.compare-bar{
  height:10px;
  border-radius:999px;
  overflow:hidden;
  background:rgba(255,255,255,.05);
}
.compare-bar em{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg, rgba(201,53,45,.92), rgba(242,139,45,.92));
}
.price-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1rem;
}
.price-card{
  position:relative;
  border-radius:26px;
  border:1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(180deg, rgba(26,29,36,.98), rgba(19,21,26,.98));
  padding:1.25rem;
  box-shadow:var(--shadow-soft);
}
.price-card.recommended{
  border-color:rgba(239,90,56,.34);
  box-shadow:0 24px 52px rgba(239,90,56,.12), var(--shadow-soft);
}
.price-badge{
  display:inline-flex;
  align-items:center;
  gap:.3rem;
  padding:.35rem .65rem;
  border-radius:999px;
  font-size:.8rem;
  font-weight:800;
  color:#ffd8cf;
  border:1px solid rgba(239,90,56,.28);
  background:rgba(239,90,56,.14);
  margin-bottom:.9rem;
}
.price-card h3{
  margin:.1rem 0 .55rem;
  font-size:1.25rem;
  font-weight:900;
}
.price-value{
  margin:0 0 .8rem;
  font-size:2rem;
  line-height:1;
  font-weight:900;
  color:#fff;
}
.price-card .sub{
  margin:0 0 1rem;
  color:var(--muted);
}
.price-list{
  list-style:none;
  margin:0 0 1.1rem;
  padding:0;
  display:grid;
  gap:.65rem;
}
.price-list li{
  position:relative;
  padding-left:1.35rem;
  color:#e4e8ee;
}
.price-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.6em;
  width:.56rem;
  height:.56rem;
  border-radius:50%;
  background:linear-gradient(180deg, var(--primary), var(--primary-2));
}
.faq-wrap{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:1rem;
  align-items:start;
}
.faq-panel{
  border-radius:26px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(24,27,33,.98), rgba(16,18,23,.98));
  padding:1rem;
  box-shadow:var(--shadow-soft);
}
.accordion,
.accordion-title,
.accordion-content{
  border:0;
  background:none;
}
.accordion-item{
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  border-radius:18px;
  overflow:hidden;
  margin-bottom:.7rem;
}
.accordion-title{
  color:#fff;
  font-size:1rem;
  font-weight:800;
  padding:1rem 1rem 1rem 3rem;
  line-height:1.5;
  position:relative;
}
.accordion-title::before{
  content:"+";
  position:absolute;
  left:1rem;
  top:50%;
  transform:translateY(-50%);
  width:1.5rem;
  height:1.5rem;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:rgba(239,90,56,.16);
  color:#ffd7ca;
  border:1px solid rgba(239,90,56,.24);
  font-weight:900;
}
.accordion-title:hover,
.accordion-title:focus-visible{
  background:rgba(255,255,255,.03);
  outline:none;
}
.accordion-content{
  padding:0 1rem 1rem 3rem;
  color:var(--muted);
  line-height:1.75;
}
.accordion-item.is-active{
  border-color:rgba(239,90,56,.28);
  box-shadow:0 0 0 1px rgba(239,90,56,.08) inset;
}
.accordion-item.is-active .accordion-title::before{
  content:"−";
  background:rgba(239,90,56,.22);
}
.side-note{
  border-radius:26px;
  border:1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(180deg, rgba(239,90,56,.10), rgba(255,255,255,.03)),
    linear-gradient(180deg, rgba(28,31,38,.98), rgba(17,19,24,.98));
  padding:1.25rem;
  box-shadow:var(--shadow-soft);
  position:sticky;
  top:106px;
}
.side-note h3{
  margin:0 0 .55rem;
  font-size:1.2rem;
  font-weight:900;
}
.side-note p{
  margin:0 0 1rem;
  color:#dde2ea;
}
.mini-check{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:.7rem;
}
.mini-check li{
  padding-left:1.4rem;
  position:relative;
  color:#eef1f5;
}
.mini-check li::before{
  content:"";
  position:absolute;
  left:0;
  top:.55em;
  width:.62rem;
  height:.62rem;
  border-radius:50%;
  background:linear-gradient(180deg, var(--good), #2da86d);
}
.cta-bar{
  border-radius:30px;
  border:1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(135deg, rgba(239,90,56,.18), rgba(242,139,45,.10) 36%, rgba(255,255,255,.02) 100%),
    linear-gradient(180deg, rgba(24,26,32,.98), rgba(15,17,22,.98));
  box-shadow:var(--shadow);
  padding:1.25rem;
  overflow:hidden;
  position:relative;
}
.cta-bar::after{
  content:"";
  position:absolute;
  inset:auto -6% -42% auto;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(242,139,45,.18), transparent 68%);
}
.cta-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:1rem;
  align-items:center;
}
.cta-title{
  margin:0 0 .5rem;
  font-size:1.55rem;
  font-weight:900;
  line-height:1.25;
}
.cta-text{
  margin:0;
  color:#ebeff5;
}
.form-box{
  position:relative;
  z-index:1;
  border-radius:24px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(10,12,16,.42);
  padding:1rem;
}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:.8rem;
}
.field{
  display:grid;
  gap:.4rem;
}
.field.full{
  grid-column:1 / -1;
}
.field label{
  font-size:.88rem;
  color:#d8dee8;
  font-weight:700;
}
.field input,
.field textarea{
  width:100%;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.04);
  color:#fff;
  padding:.85rem .95rem;
  outline:none;
  box-shadow:none;
}
.field input::placeholder,
.field textarea::placeholder{
  color:#8d95a2;
}
.field input:focus,
.field textarea:focus{
  border-color:rgba(239,90,56,.36);
  box-shadow:0 0 0 3px rgba(239,90,56,.14);
}
.form-actions{
  display:flex;
  flex-wrap:wrap;
  gap:.75rem;
  margin-top:1rem;
}
.form-hint{
  margin:.85rem 0 0;
  color:var(--muted);
  font-size:.88rem;
}
.site-footer{
  padding:2.5rem 0 2.2rem;
  border-top:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(12,13,17,.2), rgba(12,13,17,.88));
}
.footer-top{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:1rem;
  align-items:start;
}
.footer-brand{
  display:flex;
  flex-direction:column;
  gap:.85rem;
}
.footer-brand .brand{
  width:fit-content;
}
.footer-text{
  margin:0;
  color:var(--muted);
  max-width:60ch;
}
.footer-links{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1rem;
}
.footer-block{
  border-radius:22px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  padding:1rem;
}
.footer-block h4{
  margin:0 0 .7rem;
  font-size:1rem;
  font-weight:900;
}
.footer-block a{
  display:inline-flex;
  margin:.2rem .55rem .2rem 0;
  color:#e8ecf2;
  padding:.35rem .68rem;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
}
.footer-block a:hover,
.footer-block a:focus-visible{
  border-color:rgba(239,90,56,.32);
  background:rgba(239,90,56,.10);
  outline:none;
}
.footer-bottom{
  margin-top:1rem;
  padding-top:1rem;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
  color:var(--muted-2);
  font-size:.9rem;
}
.mobile-anchor{
  display:none;
}
@media (max-width: 1023px){
  .header-inner{
    grid-template-columns:1fr;
    gap:.8rem;
    padding:.4rem 0 .8rem;
  }
  .nav-group.left,
  .nav-group.right{
    justify-content:center;
  }
  .trust-strip,
  .metric-board,
  .case-wall,
  .price-grid,
  .footer-top,
  .cta-grid,
  .faq-wrap{
    grid-template-columns:1fr;
  }
  .side-note{
    position:relative;
    top:auto;
  }
}
@media (max-width: 639px){
  .desktop-header{
    display:none;
  }
  .mobile-toggle{
    display:flex;
  }
  .mobile-nav{
    display:none;
  }
  .hero{
    padding:1.4rem 0 1rem;
  }
  .section{
    padding:3.6rem 0;
  }
  .section-title{
    font-size:clamp(1.45rem, 7vw, 2rem);
  }
  .hero-title{
    font-size:clamp(1.75rem, 9vw, 2.55rem);
  }
  .hero-lead{
    font-size:.98rem;
  }
  .matrix{
    grid-template-columns:1fr 1fr;
  }
  .form-grid{
    grid-template-columns:1fr;
  }
  .field.full{
    grid-column:auto;
  }
  .footer-links{
    grid-template-columns:1fr;
  }
}

/* roulang page: category1 */
:root {
      --color-primary: #0e0f12;
      --color-primary-2: #15171c;
      --color-secondary: #242832;
      --color-accent: #d94832;
      --color-accent-2: #f19a3e;
      --color-bg: #0e0f12;
      --color-card: #181b22;
      --color-card-2: #20242d;
      --color-text: #f4efe8;
      --color-muted: #b8b2a9;
      --color-soft: #7f8794;
      --color-border: rgba(238, 229, 214, 0.14);
      --color-border-strong: rgba(241, 154, 62, 0.4);
      --shadow: 0 22px 70px rgba(0, 0, 0, 0.38);
      --shadow-glow: 0 18px 46px rgba(217, 72, 50, 0.22);
      --radius-lg: 28px;
      --radius-md: 20px;
      --radius-sm: 14px;
      --container: 1240px;
      --section-space: 86px;
      --header-height: 78px;
      --font-main: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      font-size: 16px;
      line-height: 1.7;
      color: var(--color-text);
      background:
        radial-gradient(circle at 78% 7%, rgba(217, 72, 50, 0.22), transparent 34%),
        radial-gradient(circle at 15% 22%, rgba(241, 154, 62, 0.12), transparent 28%),
        linear-gradient(180deg, #0e0f12 0%, #14161b 42%, #0e0f12 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 64px 64px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,0.62), transparent 72%);
      z-index: -1;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 220ms ease, border-color 220ms ease, background 220ms ease, transform 220ms ease;
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(241, 154, 62, 0.7);
      outline-offset: 3px;
    }

    .container-wide {
      width: min(calc(100% - 40px), var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      min-height: var(--header-height);
      background: rgba(14, 15, 18, 0.86);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--color-border);
      box-shadow: 0 14px 34px rgba(0, 0, 0, 0.2);
    }

    .header-inner {
      min-height: var(--header-height);
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 28px;
    }

    .nav-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-group.left {
      justify-content: flex-end;
    }

    .nav-group.right {
      justify-content: flex-start;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      color: var(--color-muted);
      font-weight: 700;
      letter-spacing: 0.02em;
      border: 1px solid transparent;
      border-radius: 999px;
    }

    .nav-link:hover,
    .nav-link.is-active {
      color: var(--color-text);
      background: rgba(217, 72, 50, 0.12);
      border-color: rgba(217, 72, 50, 0.34);
      transform: translateY(-1px);
    }

    .nav-link.is-active::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 5px;
      height: 2px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
    }

    .brand-wrap {
      display: flex;
      justify-content: center;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-height: 48px;
      padding: 8px 16px;
      color: var(--color-text);
      font-weight: 900;
      letter-spacing: 0.01em;
      border: 1px solid rgba(241, 154, 62, 0.28);
      border-radius: 999px;
      background: linear-gradient(135deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.03), 0 12px 28px rgba(0,0,0,0.22);
    }

    .brand:hover {
      border-color: rgba(241, 154, 62, 0.56);
      transform: translateY(-1px);
    }

    .brand-mark {
      width: 18px;
      height: 18px;
      display: inline-block;
      border-radius: 50%;
      background:
        linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
      box-shadow: 0 0 0 5px rgba(217,72,50,0.13), 0 0 22px rgba(241,154,62,0.45);
    }

    .mobile-toggle {
      min-height: 66px;
      align-items: center;
      justify-content: space-between;
    }

    .mobile-btn {
      width: 44px;
      height: 44px;
      color: var(--color-text);
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: 14px;
    }

    .mobile-btn:hover {
      border-color: var(--color-border-strong);
      background: rgba(217,72,50,0.12);
    }

    .mobile-title {
      font-weight: 900;
      letter-spacing: 0.01em;
      color: var(--color-text);
    }

    .mobile-nav {
      display: none;
      padding: 0 0 18px;
    }

    .mobile-nav.is-open {
      display: block;
    }

    .mobile-nav .nav-group {
      display: grid;
      gap: 10px;
    }

    .mobile-nav .nav-link {
      justify-content: flex-start;
      width: 100%;
      border-color: var(--color-border);
      background: rgba(255,255,255,0.04);
    }

    .section {
      padding: var(--section-space) 0;
      position: relative;
    }

    .section.compact {
      padding-top: 58px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 28px;
    }

    .section-kicker,
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-accent-2);
      font-weight: 900;
      letter-spacing: 0.08em;
      font-size: 13px;
      text-transform: uppercase;
    }

    .section-kicker::before,
    .eyebrow::before {
      content: "";
      width: 28px;
      height: 3px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
    }

    h1,
    h2,
    h3,
    h4,
    p {
      margin-top: 0;
    }

    h1 {
      margin-bottom: 18px;
      font-size: clamp(2rem, 5vw, 3.45rem);
      line-height: 1.12;
      font-weight: 900;
      letter-spacing: -0.04em;
    }

    h2 {
      margin-bottom: 12px;
      font-size: clamp(1.65rem, 3vw, 2.25rem);
      line-height: 1.18;
      font-weight: 900;
      letter-spacing: -0.03em;
    }

    h3 {
      margin-bottom: 10px;
      font-size: 1.25rem;
      line-height: 1.25;
      font-weight: 900;
    }

    p {
      color: var(--color-muted);
    }

    .lead {
      max-width: 680px;
      font-size: 1.08rem;
      color: #d8d1c7;
    }

    .hero-category {
      padding: 72px 0 62px;
      overflow: hidden;
    }

    .hero-panel {
      position: relative;
      padding: 34px;
      min-height: 560px;
      border: 1px solid var(--color-border);
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(32,36,45,0.96), rgba(18,20,25,0.96)),
        radial-gradient(circle at 80% 20%, rgba(241,154,62,0.2), transparent 32%);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      right: -90px;
      top: 70px;
      width: 420px;
      height: 420px;
      border: 1px solid rgba(241,154,62,0.2);
      border-radius: 50%;
      background:
        repeating-linear-gradient(135deg, rgba(241,154,62,0.08) 0 6px, transparent 6px 16px);
      opacity: 0.7;
      transform: rotate(-12deg);
    }

    .hero-copy {
      position: relative;
      z-index: 2;
      padding: 28px 0 24px;
    }

    .hero-actions,
    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 999px;
      font-weight: 900;
      letter-spacing: 0.01em;
      border: 1px solid transparent;
      transition: transform 240ms ease, box-shadow 240ms ease, background 240ms ease, border-color 240ms ease;
    }

    .btn-primary {
      color: #160b08;
      background: linear-gradient(135deg, var(--color-accent-2), var(--color-accent));
      box-shadow: 0 16px 34px rgba(217,72,50,0.24);
    }

    .btn-primary:hover {
      color: #120907;
      filter: brightness(1.08);
      transform: translateY(-2px);
      box-shadow: 0 20px 42px rgba(217,72,50,0.34);
    }

    .btn-secondary {
      color: var(--color-text);
      background: rgba(255,255,255,0.055);
      border-color: var(--color-border);
    }

    .btn-secondary:hover {
      color: var(--color-text);
      border-color: var(--color-border-strong);
      background: rgba(241,154,62,0.1);
      transform: translateY(-2px);
    }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 26px;
    }

    .tag,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 11px;
      color: #f6ead9;
      font-size: 13px;
      font-weight: 800;
      border-radius: 999px;
      border: 1px solid rgba(241,154,62,0.26);
      background: rgba(241,154,62,0.08);
    }

    .badge.dark {
      color: var(--color-muted);
      border-color: var(--color-border);
      background: rgba(255,255,255,0.045);
    }

    .dp-cover {
      position: relative;
      z-index: 2;
      min-height: 492px;
      border-radius: 30px;
      transform: translate(22px, 18px) rotate(-2deg);
      border: 1px solid rgba(241,154,62,0.28);
      background:
        linear-gradient(145deg, rgba(217,72,50,0.16), transparent 34%),
        linear-gradient(315deg, rgba(241,154,62,0.18), transparent 28%),
        #111318;
      box-shadow: 0 34px 90px rgba(0,0,0,0.42);
      overflow: hidden;
    }

    .dp-cover::before {
      content: "";
      position: absolute;
      inset: 22px;
      border-radius: 24px;
      background:
        linear-gradient(90deg, transparent 0 20%, rgba(255,255,255,0.06) 20% 21%, transparent 21% 40%, rgba(255,255,255,0.05) 40% 41%, transparent 41%),
        repeating-linear-gradient(135deg, rgba(255,255,255,0.055) 0 2px, transparent 2px 13px);
      opacity: 0.7;
    }

    .spec-board {
      position: absolute;
      inset: auto 24px 24px 24px;
      display: grid;
      gap: 12px;
      z-index: 3;
    }

    .spec-item {
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      border: 1px solid var(--color-border);
      background: rgba(14,15,18,0.78);
      backdrop-filter: blur(12px);
    }

    .spec-num {
      width: 34px;
      height: 34px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #180d08;
      font-weight: 950;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--color-accent-2), var(--color-accent));
    }

    .spec-item strong {
      display: block;
      line-height: 1.25;
    }

    .spec-item span {
      color: var(--color-muted);
      font-size: 13px;
    }

    .meter {
      width: 74px;
      height: 7px;
      border-radius: 99px;
      background: rgba(255,255,255,0.12);
      overflow: hidden;
    }

    .meter i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
    }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      padding: 14px;
      border: 1px solid var(--color-border);
      border-radius: 22px;
      background: rgba(255,255,255,0.04);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
    }

    .filter-button {
      margin: 0;
      padding: 10px 15px;
      color: var(--color-muted);
      font-weight: 900;
      border: 1px solid var(--color-border);
      border-radius: 999px;
      background: rgba(14,15,18,0.55);
    }

    .filter-button:hover,
    .filter-button.is-active {
      color: #170c08;
      border-color: transparent;
      background: linear-gradient(135deg, var(--color-accent-2), var(--color-accent));
    }

    .rail-wrap {
      position: relative;
    }

    .rail-actions {
      display: flex;
      gap: 10px;
      flex-shrink: 0;
    }

    .rail-btn {
      width: 42px;
      height: 42px;
      color: var(--color-text);
      border: 1px solid var(--color-border);
      border-radius: 14px;
      background: rgba(255,255,255,0.055);
    }

    .rail-btn:hover {
      background: rgba(217,72,50,0.18);
      border-color: var(--color-border-strong);
      transform: translateY(-2px);
    }

    .horizontal-rail {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: minmax(300px, 360px);
      gap: 20px;
      overflow-x: auto;
      padding: 10px 2px 20px;
      scroll-snap-type: x proximity;
      scrollbar-width: thin;
      scrollbar-color: rgba(241,154,62,0.55) rgba(255,255,255,0.08);
    }

    .horizontal-rail::-webkit-scrollbar {
      height: 8px;
    }

    .horizontal-rail::-webkit-scrollbar-track {
      background: rgba(255,255,255,0.06);
      border-radius: 99px;
    }

    .horizontal-rail::-webkit-scrollbar-thumb {
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
      border-radius: 99px;
    }

    .cover-card {
      position: relative;
      min-height: 330px;
      padding: 22px;
      scroll-snap-align: start;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(155deg, rgba(217,72,50,0.18), transparent 36%),
        linear-gradient(25deg, rgba(241,154,62,0.13), transparent 28%),
        var(--color-card);
      box-shadow: 0 16px 42px rgba(0,0,0,0.25);
      overflow: hidden;
      transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
    }

    .cover-card::before {
      content: "";
      position: absolute;
      inset: 18px 18px auto auto;
      width: 90px;
      height: 90px;
      border-radius: 50%;
      border: 1px solid rgba(241,154,62,0.22);
      background: repeating-linear-gradient(135deg, rgba(241,154,62,0.11) 0 4px, transparent 4px 12px);
      transition: transform 260ms ease;
    }

    .cover-card:hover {
      transform: scale(1.025) translateY(-4px);
      border-color: var(--color-border-strong);
      box-shadow: var(--shadow-glow);
    }

    .cover-card:hover::before {
      transform: scale(1.12) rotate(8deg);
    }

    .card-code {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 34px;
      color: #170c08;
      font-weight: 950;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--color-accent-2), var(--color-accent));
    }

    .dark-info {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      padding: 18px;
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 22px;
      background: rgba(9,10,13,0.82);
      backdrop-filter: blur(14px);
    }

    .dark-info p {
      margin-bottom: 12px;
      font-size: 14px;
    }

    .mini-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-accent-2);
      font-weight: 900;
      font-size: 14px;
    }

    .mini-link:hover {
      color: #ffd09a;
      transform: translateX(2px);
    }

    .feature-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
      gap: 24px;
      align-items: stretch;
    }

    .recommend-card {
      min-height: 500px;
      padding: 28px;
      border: 1px solid var(--color-border-strong);
      border-radius: 32px;
      background:
        linear-gradient(150deg, rgba(217,72,50,0.24), transparent 42%),
        linear-gradient(330deg, rgba(241,154,62,0.18), transparent 36%),
        var(--color-card);
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .recommend-card::after {
      content: "";
      position: absolute;
      right: -70px;
      bottom: -90px;
      width: 290px;
      height: 290px;
      border-radius: 50%;
      background: rgba(241,154,62,0.11);
      border: 1px solid rgba(241,154,62,0.24);
    }

    .recommend-card .dark-info {
      left: 24px;
      right: 24px;
      bottom: 24px;
      z-index: 2;
    }

    .mini-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .mini-card {
      min-height: 240px;
      padding: 20px;
      border: 1px solid var(--color-border);
      border-radius: 24px;
      background:
        linear-gradient(145deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)),
        var(--color-card);
      position: relative;
      overflow: hidden;
      transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
    }

    .mini-card:hover {
      transform: scale(1.025) translateY(-4px);
      border-color: var(--color-border-strong);
      box-shadow: var(--shadow-glow);
    }

    .mini-card .tag {
      margin-bottom: 32px;
    }

    .mini-card p {
      margin-bottom: 0;
      font-size: 14px;
    }

    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
    }

    .step-card,
    .case-card,
    .price-card,
    .contact-card {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      background: linear-gradient(145deg, rgba(255,255,255,0.055), rgba(255,255,255,0.018));
      box-shadow: 0 14px 38px rgba(0,0,0,0.18);
    }

    .step-card {
      padding: 24px;
      position: relative;
      overflow: hidden;
    }

    .step-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 24px;
      right: 24px;
      height: 3px;
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
      border-radius: 0 0 99px 99px;
    }

    .step-index {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      color: #170b07;
      font-weight: 950;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--color-accent-2), var(--color-accent));
    }

    .scenario-board {
      display: grid;
      grid-template-columns: 0.8fr 1.2fr;
      gap: 22px;
      align-items: stretch;
    }

    .scenario-panel {
      padding: 26px;
      border: 1px solid var(--color-border);
      border-radius: 30px;
      background: var(--color-card);
    }

    .scenario-list {
      display: grid;
      gap: 12px;
      margin-top: 22px;
    }

    .scenario-list li {
      list-style: none;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 13px 15px;
      border: 1px solid var(--color-border);
      border-radius: 16px;
      background: rgba(255,255,255,0.04);
      color: var(--color-muted);
    }

    .scenario-list strong {
      color: var(--color-text);
    }

    .case-wall {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .case-card {
      padding: 22px;
      transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
    }

    .case-card:hover {
      transform: translateY(-4px);
      border-color: var(--color-border-strong);
      box-shadow: var(--shadow-glow);
    }

    .case-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 18px;
    }

    .case-id {
      color: var(--color-accent-2);
      font-weight: 950;
      letter-spacing: 0.08em;
    }

    .bar-row {
      display: grid;
      gap: 9px;
      margin-top: 18px;
    }

    .bar-line {
      height: 8px;
      border-radius: 99px;
      background: rgba(255,255,255,0.1);
      overflow: hidden;
    }

    .bar-line span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
    }

    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .price-card {
      padding: 26px;
      position: relative;
      overflow: hidden;
      transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
    }

    .price-card.is-featured {
      border-color: var(--color-border-strong);
      background:
        linear-gradient(145deg, rgba(217,72,50,0.18), rgba(255,255,255,0.025)),
        var(--color-card);
    }

    .price-card:hover {
      transform: translateY(-4px);
      border-color: var(--color-border-strong);
      box-shadow: var(--shadow-glow);
    }

    .price-value {
      margin: 18px 0;
      color: var(--color-text);
      font-size: 1.8rem;
      font-weight: 950;
      letter-spacing: -0.04em;
    }

    .check-list {
      display: grid;
      gap: 10px;
      margin: 18px 0 24px;
      padding: 0;
    }

    .check-list li {
      list-style: none;
      display: flex;
      gap: 10px;
      color: var(--color-muted);
    }

    .check-list li::before {
      content: "✓";
      width: 22px;
      height: 22px;
      flex: 0 0 22px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #170b07;
      font-size: 12px;
      font-weight: 950;
      border-radius: 50%;
      background: var(--color-accent-2);
      margin-top: 2px;
    }

    .accordion {
      background: transparent;
    }

    .accordion-item {
      margin-bottom: 12px;
      border: 1px solid var(--color-border);
      border-radius: 20px;
      background: rgba(255,255,255,0.045);
      overflow: hidden;
    }

    .accordion-title {
      padding: 18px 22px;
      color: var(--color-text);
      font-size: 1rem;
      font-weight: 900;
      border: 0;
      background: transparent;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      color: var(--color-accent-2);
      background: rgba(217,72,50,0.09);
    }

    .accordion-title::before {
      color: var(--color-accent-2);
      font-size: 1.3rem;
      margin-top: -0.75rem;
    }

    .accordion-content {
      padding: 0 22px 20px;
      color: var(--color-muted);
      border: 0;
      background: transparent;
      border-left: 3px solid var(--color-accent);
    }

    .contact-strip {
      padding: 34px;
      border: 1px solid rgba(241,154,62,0.34);
      border-radius: 32px;
      background:
        linear-gradient(120deg, rgba(217,72,50,0.22), transparent 32%),
        linear-gradient(300deg, rgba(241,154,62,0.18), transparent 28%),
        #171a21;
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .contact-strip::after {
      content: "";
      position: absolute;
      right: -38px;
      top: -60px;
      width: 170px;
      height: 280px;
      background: linear-gradient(180deg, var(--color-accent-2), var(--color-accent));
      opacity: 0.26;
      transform: skewX(-18deg);
    }

    .contact-form {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      margin-top: 20px;
      position: relative;
      z-index: 2;
    }

    .form-field.full {
      grid-column: 1 / -1;
    }

    .form-field label {
      display: block;
      margin-bottom: 7px;
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 800;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      min-height: 48px;
      margin: 0;
      color: var(--color-text);
      border: 1px solid var(--color-border);
      border-radius: 15px;
      background: rgba(14,15,18,0.72);
      box-shadow: none;
    }

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      border-color: var(--color-border-strong);
      background: rgba(14,15,18,0.9);
      box-shadow: 0 0 0 4px rgba(241,154,62,0.1);
    }

    .form-field textarea {
      min-height: 98px;
      resize: vertical;
    }

    .site-footer {
      padding: 54px 0 26px;
      color: var(--color-muted);
      background: #090a0d;
      border-top: 1px solid var(--color-border);
    }

    .footer-top {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 48px;
      align-items: start;
      padding-bottom: 34px;
    }

    .footer-text {
      max-width: 560px;
      margin-top: 18px;
      margin-bottom: 0;
      color: var(--color-muted);
    }

    .footer-links {
      display: flex;
      gap: 54px;
    }

    .footer-block {
      display: grid;
      gap: 9px;
      min-width: 126px;
    }

    .footer-block h4 {
      margin-bottom: 5px;
      color: var(--color-text);
      font-size: 1rem;
      font-weight: 900;
    }

    .footer-block a {
      color: var(--color-muted);
      font-weight: 700;
    }

    .footer-block a:hover {
      color: var(--color-accent-2);
      transform: translateX(2px);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 22px;
      padding-top: 22px;
      border-top: 1px solid var(--color-border);
      color: var(--color-soft);
      font-size: 14px;
    }

    @media (max-width: 1023px) {
      :root {
        --section-space: 64px;
      }

      .desktop-header {
        display: none;
      }

      .mobile-toggle {
        display: flex !important;
      }

      .hero-panel {
        padding: 24px;
      }

      .dp-cover {
        min-height: 430px;
        transform: none;
        margin-top: 22px;
      }

      .feature-layout,
      .scenario-board {
        grid-template-columns: 1fr;
      }

      .step-grid,
      .price-grid,
      .case-wall {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      .footer-links {
        justify-content: space-between;
      }
    }

    @media (min-width: 1024px) {
      .mobile-toggle {
        display: none !important;
      }
    }

    @media (max-width: 640px) {
      .container-wide {
        width: min(calc(100% - 28px), var(--container));
      }

      .hero-category {
        padding: 42px 0 34px;
      }

      .hero-panel,
      .contact-strip {
        padding: 20px;
        border-radius: 24px;
      }

      .hero-copy {
        padding-top: 8px;
      }

      .hero-actions,
      .cta-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .btn {
        width: 100%;
      }

      .section-head {
        display: grid;
        gap: 16px;
      }

      .rail-actions {
        justify-content: flex-start;
      }

      .horizontal-rail {
        grid-auto-columns: 82vw;
        gap: 16px;
      }

      .feature-layout,
      .mini-grid,
      .step-grid,
      .price-grid,
      .case-wall,
      .contact-form {
        grid-template-columns: 1fr;
      }

      .recommend-card {
        min-height: 430px;
      }

      .dp-cover {
        min-height: 410px;
      }

      .spec-board {
        inset: auto 14px 14px 14px;
      }

      .spec-item {
        grid-template-columns: auto 1fr;
      }

      .meter {
        grid-column: 2;
        width: 100%;
      }

      .filter-bar {
        overflow-x: auto;
        flex-wrap: nowrap;
      }

      .filter-button {
        white-space: nowrap;
      }

      .footer-links,
      .footer-bottom {
        flex-direction: column;
      }

      h1 {
        letter-spacing: -0.03em;
      }
    }