/* roulang page: index */
:root{
  --bg:#090b10;
  --bg-soft:#10141d;
  --bg-elev:#141924;
  --bg-elev-2:#18202d;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --text:#f4f7ff;
  --muted:#a7b0c0;
  --muted-2:#7d8798;
  --accent:#8b5cf6;
  --accent-2:#22d3ee;
  --accent-3:#34d399;
  --warm:#f59e0b;
  --danger:#fb7185;
  --shadow:0 24px 60px rgba(0,0,0,.35);
  --shadow-soft:0 14px 36px rgba(0,0,0,.22);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --container:1180px;
  --space-1:8px;
  --space-2:12px;
  --space-3:16px;
  --space-4:20px;
  --space-5:28px;
  --space-6:36px;
  --space-7:48px;
  --space-8:72px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(circle at top right, rgba(139,92,246,.14), transparent 30%),
    radial-gradient(circle at left bottom, rgba(34,211,238,.10), transparent 32%),
    linear-gradient(180deg, #090b10 0%, #0b0d12 100%);
  color:var(--text);
  font-family: Inter, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height:1.75;
  overflow-x:hidden;
}
body::before,
body::after{
  content:"";
  position:fixed;
  inset:auto;
  z-index:-1;
  pointer-events:none;
  border-radius:50%;
  filter:blur(28px);
  opacity:.5;
}
body::before{
  width:26rem;
  height:26rem;
  top:-8rem;
  right:-10rem;
  background:radial-gradient(circle, rgba(139,92,246,.18), transparent 68%);
}
body::after{
  width:24rem;
  height:24rem;
  left:-8rem;
  bottom:-10rem;
  background:radial-gradient(circle, rgba(34,211,238,.14), transparent 70%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{
  font:inherit;
}
::selection{
  background:rgba(139,92,246,.35);
  color:#fff;
}
:focus-visible{
  outline:2px solid rgba(34,211,238,.75);
  outline-offset:3px;
}

.container{
  width:min(var(--container), calc(100% - 32px));
  margin:0 auto;
}

.skip-link{
  position:absolute;
  left:-9999px;
  top:auto;
}
.skip-link:focus{
  left:16px;
  top:16px;
  z-index:9999;
  background:#fff;
  color:#000;
  padding:10px 14px;
  border-radius:10px;
}

.site-header{
  position:sticky;
  top:0;
  z-index:200;
  backdrop-filter:blur(14px);
  background:rgba(9,11,16,.78);
  border-bottom:1px solid var(--line);
}
.site-header__inner{
  padding:14px 0 12px;
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:14px;
  background:
    linear-gradient(135deg, rgba(139,92,246,.98), rgba(34,211,238,.84));
  box-shadow:0 12px 26px rgba(139,92,246,.28);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:11px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.20);
}
.brand-name{
  font-weight:800;
  letter-spacing:.3px;
  font-size:1.06rem;
  line-height:1.2;
  white-space:nowrap;
}
.brand-sub{
  display:block;
  margin-top:2px;
  color:var(--muted);
  font-size:.76rem;
  font-weight:500;
}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.header-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:.86rem;
}
.header-badge i{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent-3);
  box-shadow:0 0 0 6px rgba(52,211,153,.12);
}
.header-action{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:999px;
  border:1px solid rgba(139,92,246,.38);
  background:linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.10));
  color:var(--text);
  font-weight:700;
  font-size:.9rem;
  transition:transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
}
.header-action:hover{
  transform:translateY(-1px);
  border-color:rgba(34,211,238,.55);
  box-shadow:0 10px 24px rgba(139,92,246,.12);
}

.chip-nav{
  margin-top:12px;
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:2px;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  scroll-snap-align:start;
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:.92rem;
  transition:transform .22s ease, border-color .22s ease, background .22s ease, color .22s ease, box-shadow .22s ease;
}
.chip:hover{
  transform:translateY(-1px);
  color:var(--text);
  border-color:rgba(255,255,255,.18);
}
.chip.is-active{
  color:#fff;
  border-color:rgba(139,92,246,.58);
  background:linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.12));
  box-shadow:0 10px 24px rgba(139,92,246,.12);
}

main{
  position:relative;
}
.section{
  padding:72px 0 0;
}
.section:last-of-type{
  padding-bottom:72px;
}
.section-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.section-title-wrap{
  max-width:760px;
}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:10px;
  color:#d6dbeb;
  font-size:.86rem;
  font-weight:700;
  text-transform:none;
  letter-spacing:.2px;
}
.section-kicker::before{
  content:"";
  width:10px;
  height:10px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow:0 0 0 6px rgba(139,92,246,.10);
}
.section-title{
  margin:0;
  font-size:clamp(26px, 3.2vw, 40px);
  line-height:1.12;
  letter-spacing:-.02em;
}
.section-desc{
  margin:12px 0 0;
  color:var(--muted);
  font-size:1rem;
  max-width:760px;
}

.hero{
  padding-top:28px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:24px;
  align-items:stretch;
}
.hero-copy,
.hero-visual,
.surface,
.card,
.faq-item,
.form-shell,
.news-card,
.recommend-card,
.matrix-card,
.compare-card,
.review-card{
  background:linear-gradient(180deg, rgba(20,25,36,.96), rgba(14,17,25,.95));
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-soft);
}
.hero-copy{
  padding:30px;
  position:relative;
  overflow:hidden;
}
.hero-copy::after{
  content:"";
  position:absolute;
  width:280px;
  height:280px;
  border-radius:50%;
  right:-120px;
  top:-110px;
  background:radial-gradient(circle, rgba(139,92,246,.20), transparent 65%);
  pointer-events:none;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
  color:#d8def1;
  font-size:.84rem;
  font-weight:700;
}
.hero-badge strong{
  color:var(--accent-2);
}
.hero h1{
  margin:16px 0 0;
  font-size:clamp(34px, 5vw, 58px);
  line-height:1.02;
  letter-spacing:-.04em;
}
.hero-lead{
  margin:16px 0 0;
  color:#c7cfdf;
  font-size:clamp(16px, 1.25vw, 18px);
  max-width:58ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:0 18px;
  border-radius:14px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
  font-weight:800;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg, rgba(139,92,246,.96), rgba(34,211,238,.84));
  box-shadow:0 16px 36px rgba(139,92,246,.18);
}
.btn-primary:hover{
  box-shadow:0 20px 42px rgba(139,92,246,.24);
}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.03);
  border-color:var(--line);
}
.btn-ghost:hover{
  border-color:rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);
}
.hero-proof{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.proof-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 12px;
  border-radius:999px;
  color:#dfe4f3;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  font-size:.88rem;
}
.proof-pill strong{
  color:#fff;
}
.hero-progress{
  margin-top:26px;
  padding:18px;
  border-radius:22px;
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);
}
.hero-progress-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:12px;
}
.hero-progress-title{
  font-weight:800;
  color:#fff;
}
.hero-progress-note{
  color:var(--muted);
  font-size:.88rem;
}
.progress{
  width:100%;
  height:11px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  overflow:hidden;
  position:relative;
}
.progress-fill{
  display:block;
  width:66%;
  height:100%;
  border-radius:inherit;
  background:linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow:0 0 0 1px rgba(255,255,255,.08) inset;
}
.hero-progress-foot{
  display:flex;
  justify-content:space-between;
  gap:14px;
  margin-top:10px;
  color:var(--muted);
  font-size:.88rem;
}
.hero-visual{
  padding:18px;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:14px;
}
.poster-card{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  background:
    linear-gradient(160deg, rgba(139,92,246,.20), rgba(34,211,238,.08)),
    linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  border:1px solid rgba(255,255,255,.10);
  min-height:150px;
  padding:16px;
}
.poster-card::after{
  content:"";
  position:absolute;
  inset:auto -15% -20% auto;
  width:180px;
  height:180px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,255,255,.10), transparent 72%);
  pointer-events:none;
}
.poster-card--large{
  grid-row:span 2;
  min-height:328px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.poster-title{
  font-size:1.02rem;
  font-weight:800;
  letter-spacing:-.01em;
}
.poster-desc{
  color:#d7deee;
  font-size:.9rem;
  max-width:26ch;
}
.poster-figure{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:10px;
  margin-top:16px;
}
.mini-tile{
  min-height:106px;
  border-radius:18px;
  background:rgba(10,12,18,.56);
  border:1px solid rgba(255,255,255,.09);
  padding:12px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.mini-tile strong{
  display:block;
  font-size:1.02rem;
}
.mini-tile span{
  color:var(--muted);
  font-size:.82rem;
}
.hero-metric{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:14px;
  padding:12px 14px;
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.hero-metric label{
  color:var(--muted);
  font-size:.84rem;
}
.hero-metric strong{
  font-size:1.22rem;
  font-weight:900;
}
.progress-card{
  min-height:150px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.progress-card .badge{
  align-self:flex-start;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 11px;
  border-radius:999px;
  color:#fff;
  font-size:.8rem;
  font-weight:800;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.09);
}
.badge--accent{
  background:linear-gradient(135deg, rgba(139,92,246,.24), rgba(34,211,238,.14));
  border-color:rgba(139,92,246,.28);
}
.badge--green{
  background:linear-gradient(135deg, rgba(52,211,153,.18), rgba(52,211,153,.08));
  border-color:rgba(52,211,153,.26);
}
.badge--warm{
  background:linear-gradient(135deg, rgba(245,158,11,.18), rgba(245,158,11,.08));
  border-color:rgba(245,158,11,.26);
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:16px;
}
.stat-card{
  padding:22px;
  position:relative;
  overflow:hidden;
}
.stat-card::before{
  content:"";
  position:absolute;
  inset:auto -20px -30px auto;
  width:120px;
  height:120px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,255,255,.06), transparent 68%);
}
.stat-value{
  display:block;
  font-size:2rem;
  line-height:1;
  font-weight:900;
  letter-spacing:-.03em;
}
.stat-label{
  display:block;
  margin-top:8px;
  color:#e2e7f2;
  font-weight:700;
}
.stat-desc{
  margin-top:8px;
  color:var(--muted);
  font-size:.92rem;
}
.stat-bar{
  margin-top:18px;
  width:100%;
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  overflow:hidden;
}
.stat-bar span{
  display:block;
  height:100%;
  border-radius:inherit;
  background:linear-gradient(90deg, rgba(139,92,246,.95), rgba(34,211,238,.85));
}

.matrix-grid{
  display:grid;
  grid-template-columns:repeat(12, minmax(0,1fr));
  gap:16px;
}
.matrix-card{
  overflow:hidden;
  position:relative;
}
.matrix-card--lead{
  grid-column:span 7;
  grid-row:span 2;
  min-height:420px;
}
.matrix-card--mid{
  grid-column:span 5;
  min-height:202px;
}
.matrix-card--small{
  grid-column:span 4;
  min-height:186px;
}
.card-cover{
  position:relative;
  isolation:isolate;
  height:170px;
  background:
    linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.10)),
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border-bottom:1px solid rgba(255,255,255,.08);
}
.card-cover::before,
.card-cover::after{
  content:"";
  position:absolute;
  border-radius:50%;
  pointer-events:none;
}
.card-cover::before{
  width:180px;
  height:180px;
  background:radial-gradient(circle, rgba(255,255,255,.12), transparent 68%);
  top:-55px;
  right:-40px;
}
.card-cover::after{
  width:120px;
  height:120px;
  background:radial-gradient(circle, rgba(52,211,153,.14), transparent 70%);
  left:-25px;
  bottom:-40px;
}
.cover-label{
  position:absolute;
  left:16px;
  top:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 11px;
  border-radius:999px;
  background:rgba(10,12,18,.55);
  border:1px solid rgba(255,255,255,.10);
  color:#fff;
  font-size:.8rem;
  font-weight:800;
}
.card-body{
  padding:18px;
}
.card-title{
  margin:0;
  font-size:1.18rem;
  line-height:1.25;
  letter-spacing:-.01em;
}
.card-text{
  margin:10px 0 0;
  color:var(--muted);
  font-size:.95rem;
}
.card-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 10px;
  border-radius:999px;
  font-size:.78rem;
  font-weight:800;
  color:#e8ecf8;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.tag--accent{background:rgba(139,92,246,.14);border-color:rgba(139,92,246,.22)}
.tag--green{background:rgba(52,211,153,.12);border-color:rgba(52,211,153,.22)}
.tag--warm{background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.22)}
.card-actions{
  display:flex;
  gap:10px;
  margin-top:16px;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#fff;
  font-weight:800;
  font-size:.92rem;
  transition:color .22s ease, transform .22s ease;
}
.card-link:hover{
  color:#dfe6ff;
  transform:translateX(2px);
}

.recommend-grid{
  display:grid;
  grid-template-columns:repeat(12, minmax(0,1fr));
  gap:16px;
}
.recommend-card{
  overflow:hidden;
}
.recommend-main{
  grid-column:span 7;
  min-height:360px;
  position:relative;
  padding:24px;
  background:
    linear-gradient(150deg, rgba(139,92,246,.20), rgba(34,211,238,.10)),
    linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
}
.recommend-main::after{
  content:"";
  position:absolute;
  inset:auto -80px -120px auto;
  width:260px;
  height:260px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,255,255,.10), transparent 68%);
}
.recommend-side{
  grid-column:span 5;
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:16px;
}
.recommend-side .recommend-card{
  min-height:172px;
  padding:18px;
}
.rank{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:10px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.09);
  font-weight:900;
  color:#fff;
  margin-bottom:12px;
}
.recommend-main .rank{
  background:linear-gradient(135deg, rgba(139,92,246,.26), rgba(34,211,238,.16));
  border-color:rgba(139,92,246,.26);
}
.recommend-grid .card-title{
  font-size:1.25rem;
}
.recommend-list{
  display:grid;
  gap:12px;
  margin-top:18px;
}
.recommend-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:#dfe5f5;
  font-size:.94rem;
}
.recommend-line::before{
  content:"";
  flex:0 0 auto;
  width:10px;
  height:10px;
  margin-top:.5em;
  border-radius:50%;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
}
.recommend-foot{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:20px;
}

.news-layout{
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:16px;
}
.news-list{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:16px;
}
.news-card{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  min-height:100%;
  transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}
.news-card:hover{
  transform:translateY(-3px);
  border-color:rgba(139,92,246,.28);
  box-shadow:0 20px 40px rgba(0,0,0,.25);
}
.news-card__cover{
  aspect-ratio:16/9;
  background:
    linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.10)),
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  position:relative;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.news-card__cover::before{
  content:"";
  position:absolute;
  inset:18px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
}
.news-card__body{
  padding:18px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  color:var(--muted);
  font-size:.82rem;
}
.news-meta time{
  white-space:nowrap;
}
.news-card h3{
  margin:0;
  font-size:1.05rem;
  line-height:1.35;
  letter-spacing:-.01em;
}
.news-card p{
  margin:0;
  color:var(--muted);
  font-size:.93rem;
}
.news-card .card-link{
  margin-top:auto;
}
.news-empty{
  padding:28px;
  border-radius:22px;
  border:1px dashed rgba(255,255,255,.14);
  color:#d4d9e7;
  background:rgba(255,255,255,.03);
}

.news-side{
  display:grid;
  gap:16px;
}
.side-panel{
  padding:22px;
}
.side-panel h3{
  margin:0 0 8px;
  font-size:1.08rem;
}
.side-panel p{
  margin:0;
  color:var(--muted);
  font-size:.95rem;
}
.side-steps{
  display:grid;
  gap:10px;
  margin-top:16px;
}
.side-step{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:12px 14px;
  border-radius:18px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  color:#e7ebf5;
  font-size:.92rem;
}
.side-step strong{
  color:#fff;
}
.side-step .dot{
  width:10px;
  height:10px;
  border-radius:50%;
  margin-top:.45em;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  flex:0 0 auto;
}
.side-cta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:16px;
}

.compare-grid{
  display:grid;
  grid-template-columns:repeat(12, minmax(0,1fr));
  gap:16px;
}
.compare-card{
  padding:22px;
  overflow:hidden;
}
.compare-card--left{
  grid-column:span 5;
}
.compare-card--right{
  grid-column:span 5;
}
.compare-card--summary{
  grid-column:span 2;
  background:
    linear-gradient(180deg, rgba(139,92,246,.12), rgba(255,255,255,.03));
}
.compare-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-bottom:18px;
}
.compare-title{
  margin:0;
  font-size:1.15rem;
}
.compare-score{
  font-size:.86rem;
  color:#fff;
  padding:8px 11px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.09);
}
.metric-stack{
  display:grid;
  gap:14px;
}
.metric-row{
  display:grid;
  gap:8px;
}
.metric-row .metric-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  color:#e8edf8;
  font-size:.92rem;
}
.meter{
  width:100%;
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  overflow:hidden;
}
.meter span{
  display:block;
  height:100%;
  border-radius:inherit;
  background:linear-gradient(90deg, rgba(139,92,246,.95), rgba(34,211,238,.88));
}
.check-list{
  display:grid;
  gap:10px;
  margin:0;
  padding:0;
  list-style:none;
}
.check-item{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:#e9edf8;
  font-size:.94rem;
}
.check-item::before{
  content:"";
  width:18px;
  height:18px;
  margin-top:.2em;
  flex:0 0 auto;
  border-radius:50%;
  background:rgba(52,211,153,.18);
  border:1px solid rgba(52,211,153,.36);
  box-shadow:inset 0 0 0 3px rgba(52,211,153,.10);
}
.summary-spot{
  padding:18px;
  border-radius:22px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  display:grid;
  gap:10px;
  height:100%;
}
.summary-spot strong{
  font-size:2rem;
  line-height:1;
}
.summary-spot span{
  color:var(--muted);
  font-size:.92rem;
}

.reviews-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:16px;
}
.review-card{
  padding:22px;
}
.review-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.avatar{
  width:44px;
  height:44px;
  border-radius:14px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg, rgba(139,92,246,.26), rgba(34,211,238,.14));
  border:1px solid rgba(255,255,255,.10);
  font-weight:900;
}
.review-name{
  font-weight:800;
}
.review-role{
  color:var(--muted);
  font-size:.86rem;
}
.review-quote{
  color:#dfe5f4;
  margin:0;
  font-size:.96rem;
}
.review-foot{
  margin-top:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  color:var(--muted);
  font-size:.86rem;
}
.star-row{
  display:inline-flex;
  gap:4px;
  color:#fbbf24;
}

.faq-list{
  display:grid;
  gap:12px;
}
.faq-item{
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-weight:800;
  color:#f4f7ff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  width:32px;
  height:32px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  color:#fff;
  flex:0 0 auto;
  transition:transform .22s ease, background .22s ease;
}
.faq-item[open] summary::after{
  content:"–";
  background:rgba(139,92,246,.16);
}
.faq-body{
  padding:0 22px 20px;
  color:var(--muted);
  font-size:.95rem;
  border-top:1px solid rgba(255,255,255,.06);
}

.form-shell{
  padding:22px;
}
.contact-grid{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:16px;
  align-items:start;
}
.form{
  display:grid;
  gap:14px;
}
.field{
  display:grid;
  gap:8px;
}
.field label{
  font-size:.9rem;
  color:#e7ecf7;
  font-weight:700;
}
.field input,
.field textarea{
  width:100%;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.03);
  color:var(--text);
  padding:14px 15px;
  transition:border-color .22s ease, box-shadow .22s ease, background .22s ease;
}
.field input::placeholder,
.field textarea::placeholder{
  color:#7f8898;
}
.field input:focus,
.field textarea:focus{
  border-color:rgba(34,211,238,.45);
  box-shadow:0 0 0 4px rgba(34,211,238,.10);
  background:rgba(255,255,255,.04);
}
.field textarea{
  min-height:132px;
  resize:vertical;
}
.form-row{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:14px;
}
.form-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  margin-top:4px;
}
.form-status{
  color:var(--muted);
  font-size:.92rem;
}
.form-status.is-success{
  color:#d2fae6;
}
.form-status.is-error{
  color:#fecdd3;
}
.btn[disabled]{
  opacity:.7;
  cursor:not-allowed;
  transform:none;
}
.help-card{
  padding:22px;
  border-radius:24px;
  background:
    linear-gradient(180deg, rgba(139,92,246,.13), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.09);
  position:relative;
  overflow:hidden;
}
.help-card::after{
  content:"";
  position:absolute;
  inset:auto -60px -90px auto;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,255,255,.09), transparent 70%);
}
.help-card h3{
  margin:0 0 10px;
  font-size:1.12rem;
}
.help-list{
  margin:16px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.help-list li{
  display:flex;
  gap:10px;
  color:#e7ecf8;
  font-size:.94rem;
}
.help-list li::before{
  content:"";
  width:10px;
  height:10px;
  border-radius:50%;
  margin-top:.46em;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  flex:0 0 auto;
}

.site-footer{
  padding:24px 0 36px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr .9fr .8fr;
  gap:18px;
  align-items:start;
}
.footer-brand{
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.footer-copy{
  color:var(--muted);
  margin:10px 0 0;
  font-size:.94rem;
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.footer-link{
  display:inline-flex;
  align-items:center;
  padding:9px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  color:#dfe4f2;
  font-size:.88rem;
  transition:transform .22s ease, border-color .22s ease, background .22s ease;
}
.footer-link:hover{
  transform:translateY(-1px);
  border-color:rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);
}
.footer-note{
  color:var(--muted);
  font-size:.88rem;
  line-height:1.8;
}
.footer-tech{
  color:var(--muted-2);
  font-size:.84rem;
  text-align:right;
}

.surface{
  padding:22px;
}
.surface-title{
  margin:0 0 10px;
  font-size:1.08rem;
}
.surface-text{
  margin:0;
  color:var(--muted);
  font-size:.95rem;
}

.section-spacer{
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent);
  margin-top:16px;
}

/* Hover / active / focus */
.card:hover,
.surface:hover,
.help-card:hover,
.review-card:hover,
.compare-card:hover,
.matrix-card:hover,
.recommend-card:hover,
.stat-card:hover{
  border-color:rgba(255,255,255,.18);
}
.matrix-card,
.recommend-card,
.news-card,
.compare-card,
.review-card,
.stat-card,
.hero-copy,
.hero-visual,
.surface,
.faq-item,
.form-shell,
.help-card{
  transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}
.matrix-card:hover,
.recommend-card:hover,
.news-card:hover,
.compare-card:hover,
.review-card:hover,
.stat-card:hover,
.hero-visual:hover{
  transform:translateY(-2px);
}

.hero-copy .btn:active,
.header-action:active,
.chip:active,
.footer-link:active,
.card-link:active{
  transform:translateY(0);
}

@media (max-width: 1120px){
  .hero-grid,
  .news-layout,
  .contact-grid,
  .footer-grid{
    grid-template-columns:1fr;
  }
  .news-list{
    grid-template-columns:1fr 1fr;
  }
  .compare-card--left,
  .compare-card--right,
  .compare-card--summary{
    grid-column:span 12;
  }
  .reviews-grid{
    grid-template-columns:1fr 1fr;
  }
  .stats-grid{
    grid-template-columns:repeat(2, minmax(0,1fr));
  }
}

@media (max-width: 860px){
  .brand-row{
    align-items:flex-start;
    flex-direction:column;
  }
  .header-tools{
    width:100%;
    justify-content:space-between;
  }
  .hero-visual,
  .recommend-side{
    grid-template-columns:1fr 1fr;
  }
  .matrix-card--lead,
  .matrix-card--mid,
  .matrix-card--small,
  .recommend-main,
  .recommend-side{
    grid-column:span 12;
  }
  .recommend-main{
    min-height:auto;
  }
  .matrix-grid,
  .recommend-grid,
  .compare-grid{
    grid-template-columns:repeat(12, minmax(0,1fr));
  }
  .news-list{
    grid-template-columns:1fr;
  }
  .hero h1{
    font-size:clamp(34px, 8vw, 48px);
  }
}

@media (max-width: 680px){
  .container{
    width:min(var(--container), calc(100% - 24px));
  }
  .site-header__inner{
    padding:12px 0 10px;
  }
  .hero-copy,
  .hero-visual,
  .surface,
  .card,
  .faq-item summary,
  .faq-body,
  .form-shell,
  .help-card,
  .review-card,
  .compare-card,
  .stat-card,
  .matrix-card .card-body{
    padding-left:16px;
    padding-right:16px;
  }
  .hero-copy{
    padding-top:20px;
    padding-bottom:20px;
  }
  .hero-visual{
    grid-template-columns:1fr;
  }
  .poster-card--large{
    min-height:260px;
    grid-row:auto;
  }
  .stats-grid,
  .reviews-grid{
    grid-template-columns:1fr;
  }
  .form-row{
    grid-template-columns:1fr;
  }
  .section{
    padding-top:58px;
  }
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .section-title{
    font-size:clamp(24px, 7vw, 34px);
  }
}

@media (max-width: 520px){
  .header-action{
    width:100%;
  }
  .header-tools{
    gap:8px;
  }
  .chip{
    padding:9px 12px;
    font-size:.86rem;
  }
  .hero-actions .btn,
  .form-actions .btn,
  .side-cta .btn{
    width:100%;
  }
  .hero-proof{
    gap:8px;
  }
  .proof-pill{
    width:100%;
    justify-content:space-between;
  }
  .hero-progress-foot{
    flex-direction:column;
  }
  .card-actions,
  .side-cta{
    flex-direction:column;
  }
  .matrix-card--lead,
  .matrix-card--mid,
  .matrix-card--small{
    min-height:auto;
  }
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation:none !important;
    transition:none !important;
  }
}

/* roulang page: article */
:root{
  --bg:#090b10;
  --bg-soft:#10141d;
  --bg-elev:#141924;
  --bg-elev-2:#18202d;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --text:#f4f7ff;
  --muted:#a7b0c0;
  --muted-2:#7d8798;
  --accent:#8b5cf6;
  --accent-2:#22d3ee;
  --accent-3:#34d399;
  --warm:#f59e0b;
  --danger:#fb7185;
  --shadow:0 24px 60px rgba(0,0,0,.35);
  --shadow-soft:0 14px 36px rgba(0,0,0,.22);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --container:1180px;
  --space-1:8px;
  --space-2:12px;
  --space-3:16px;
  --space-4:20px;
  --space-5:28px;
  --space-6:36px;
  --space-7:48px;
  --space-8:72px;
}
html{scroll-behavior:smooth;color-scheme:dark}
*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;
  background:
    radial-gradient(circle at top right, rgba(139,92,246,.14), transparent 30%),
    radial-gradient(circle at left bottom, rgba(34,211,238,.10), transparent 32%),
    linear-gradient(180deg, #090b10 0%, #0b0d12 100%);
  color:var(--text);
  font-family: Inter, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height:1.78;
  overflow-x:hidden;
}
body::before,
body::after{
  content:"";
  position:fixed;
  inset:auto;
  z-index:-1;
  pointer-events:none;
  border-radius:50%;
  filter:blur(28px);
  opacity:.5;
}
body::before{
  width:26rem;
  height:26rem;
  top:-8rem;
  right:-10rem;
  background:radial-gradient(circle, rgba(139,92,246,.18), transparent 68%);
}
body::after{
  width:24rem;
  height:24rem;
  left:-8rem;
  bottom:-10rem;
  background:radial-gradient(circle, rgba(34,211,238,.14), transparent 70%);
}
::selection{
  background:rgba(139,92,246,.36);
  color:#fff;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{
  font:inherit;
}
button{
  cursor:pointer;
}
.container{
  width:min(var(--container), calc(100% - 32px));
  margin:0 auto;
}
.surface,
.card,
.faq-item,
.form-shell,
.news-card,
.recommend-card,
.matrix-card,
.compare-card,
.review-card,
.article-top,
.article-card,
.rail-card,
.cta-strip,
.empty-shell{
  background:linear-gradient(180deg, rgba(20,25,36,.96), rgba(14,17,25,.95));
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-soft);
}
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  backdrop-filter:blur(14px);
  background:rgba(9,11,16,.78);
  border-bottom:1px solid var(--line);
}
.site-header__inner{
  padding:14px 0 12px;
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:14px;
  background:
    linear-gradient(135deg, rgba(139,92,246,.98), rgba(34,211,238,.84));
  box-shadow:0 12px 26px rgba(139,92,246,.28);
  position:relative;
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:11px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.20);
}
.brand-name{
  font-weight:800;
  letter-spacing:.3px;
  font-size:1.06rem;
  line-height:1.2;
  white-space:nowrap;
}
.brand-sub{
  display:block;
  margin-top:2px;
  color:var(--muted);
  font-size:.76rem;
  font-weight:500;
}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.header-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:.86rem;
}
.header-badge i{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent-3);
  box-shadow:0 0 0 6px rgba(52,211,153,.12);
}
.header-action,
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:42px;
  padding:10px 16px;
  border-radius:999px;
  border:1px solid transparent;
  background:transparent;
  color:var(--text);
  font-weight:700;
  font-size:.92rem;
  transition:transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease, color .22s ease, opacity .22s ease;
}
.header-action{
  border-color:rgba(139,92,246,.38);
  background:linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.10));
}
.header-action:hover,
.btn:hover{
  transform:translateY(-1px);
}
.header-action:hover{
  border-color:rgba(34,211,238,.55);
  box-shadow:0 10px 24px rgba(139,92,246,.12);
}
.header-action:active,
.btn:active{
  transform:translateY(0);
}
.header-action:focus-visible,
.btn:focus-visible,
.chip:focus-visible,
.footer-link:focus-visible,
.article-content a:focus-visible,
.side-link:focus-visible{
  outline:2px solid rgba(34,211,238,.75);
  outline-offset:3px;
}
.btn-primary{
  background:linear-gradient(135deg, rgba(139,92,246,.96), rgba(34,211,238,.92));
  color:#fff;
  box-shadow:0 16px 30px rgba(139,92,246,.20);
}
.btn-primary:hover{
  box-shadow:0 18px 32px rgba(139,92,246,.28);
}
.btn-ghost{
  border-color:var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
}
.chip-nav{
  margin-top:12px;
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:2px;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  scroll-snap-align:start;
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:.92rem;
  transition:transform .22s ease, border-color .22s ease, background .22s ease, color .22s ease, box-shadow .22s ease;
}
.chip:hover{
  transform:translateY(-1px);
  color:var(--text);
  border-color:rgba(255,255,255,.18);
}
.chip.is-active{
  color:#fff;
  border-color:rgba(139,92,246,.58);
  background:linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.12));
  box-shadow:0 10px 24px rgba(139,92,246,.12);
}
main{
  position:relative;
}
.section{
  padding:64px 0 0;
}
.section:last-of-type{
  padding-bottom:72px;
}
.section-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.section-title-wrap{
  max-width:760px;
}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:10px;
  color:#d6dbeb;
  font-size:.86rem;
  font-weight:700;
  letter-spacing:.2px;
}
.section-kicker::before{
  content:"";
  width:10px;
  height:10px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow:0 0 0 6px rgba(139,92,246,.10);
}
.section-title{
  margin:0;
  font-size:clamp(26px, 3.2vw, 40px);
  line-height:1.12;
  letter-spacing:-.02em;
}
.section-desc{
  margin:12px 0 0;
  color:var(--muted);
  font-size:1rem;
  max-width:760px;
}
.article-hero{
  padding-top:28px;
}
.article-top{
  padding:30px;
  position:relative;
  overflow:hidden;
}
.article-top::after{
  content:"";
  position:absolute;
  inset:-1px;
  pointer-events:none;
  border-radius:inherit;
  background:
    linear-gradient(135deg, rgba(139,92,246,.12), transparent 36%),
    linear-gradient(315deg, rgba(34,211,238,.08), transparent 34%);
  mask:linear-gradient(#000, #000) content-box, linear-gradient(#000,#000);
  -webkit-mask:linear-gradient(#000, #000) content-box, linear-gradient(#000,#000);
  padding:1px;
  opacity:.45;
}
.article-top{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:24px;
  align-items:stretch;
}
.article-top__copy{
  min-width:0;
}
.article-title{
  margin:8px 0 0;
  font-size:clamp(30px, 5.2vw, 56px);
  line-height:1.06;
  letter-spacing:-.03em;
  font-weight:850;
}
.article-summary{
  margin:16px 0 0;
  color:var(--muted);
  font-size:1.02rem;
  line-height:1.85;
  max-width:68ch;
}
.article-meta-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.meta-pill,
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:38px;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:.88rem;
}
.meta-pill strong{
  color:#fff;
  font-weight:700;
}
.article-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}
.article-top__panel{
  display:flex;
  min-width:0;
}
.poster-card{
  width:100%;
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:22px;
  border-radius:var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(139,92,246,.20), transparent 34%),
    radial-gradient(circle at bottom left, rgba(34,211,238,.12), transparent 30%),
    linear-gradient(180deg, rgba(24,32,45,.98), rgba(14,17,25,.95));
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.poster-badge,
.article-utility{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:max-content;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid rgba(34,211,238,.22);
  background:rgba(34,211,238,.08);
  color:#d7fbff;
  font-size:.84rem;
  font-weight:700;
}
.poster-stat{
  font-size:1.18rem;
  font-weight:800;
  letter-spacing:.2px;
}
.poster-list,
.check-list,
.summary-list{
  list-style:none;
  padding:0;
  margin:0;
}
.poster-list{
  display:grid;
  gap:12px;
}
.poster-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--muted);
  font-size:.94rem;
}
.poster-list li::before{
  content:"";
  width:10px;
  height:10px;
  margin-top:.45em;
  border-radius:50%;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow:0 0 0 5px rgba(139,92,246,.10);
  flex:0 0 auto;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(300px,.72fr);
  gap:24px;
  align-items:start;
}
.article-card{
  padding:30px;
}
.article-breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  color:var(--muted-2);
  font-size:.88rem;
  margin-bottom:18px;
}
.article-breadcrumb a{
  color:#dbe2f2;
}
.article-content{
  max-width:720px;
  color:var(--text);
  font-size:1.02rem;
  line-height:1.88;
}
.article-content > * + *{
  margin-top:1em;
}
.article-content h2,
.article-content h3,
.article-content h4{
  color:#fff;
  line-height:1.22;
  letter-spacing:-.02em;
  margin:1.4em 0 .6em;
}
.article-content h2{font-size:clamp(1.4rem, 2.2vw, 1.95rem)}
.article-content h3{font-size:clamp(1.15rem, 1.8vw, 1.45rem)}
.article-content p{
  margin:0;
  color:#dfe5f2;
}
.article-content a{
  color:var(--accent-2);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s ease, border-color .2s ease, opacity .2s ease;
}
.article-content a:hover{
  color:#fff;
  border-color:rgba(34,211,238,.42);
}
.article-content strong{
  color:#fff;
}
.article-content em{
  color:#fff;
}
.article-content ul,
.article-content ol{
  padding-left:1.25rem;
  margin:0;
  color:#dfe5f2;
}
.article-content li + li{
  margin-top:.6rem;
}
.article-content blockquote{
  margin:1.4em 0;
  padding:18px 20px;
  border-left:3px solid var(--accent);
  background:rgba(139,92,246,.08);
  border-radius:18px;
  color:#edf1ff;
}
.article-content figure{
  margin:1.4em 0;
}
.article-content img{
  width:100%;
  height:auto;
  border-radius:18px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.article-content figcaption{
  margin-top:.6rem;
  color:var(--muted);
  font-size:.9rem;
}
.article-content hr{
  border:none;
  height:1px;
  margin:1.6em 0;
  background:linear-gradient(90deg, transparent, var(--line-strong), transparent);
}
.article-content code{
  padding:.16em .36em;
  border-radius:7px;
  background:rgba(255,255,255,.06);
  color:#fff;
}
.article-content pre{
  margin:1.4em 0;
  padding:18px;
  overflow:auto;
  border-radius:18px;
  border:1px solid var(--line);
  background:#0b0f16;
  color:#e8eefc;
}
.article-content pre code{
  padding:0;
  background:none;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  display:block;
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:18px;
  margin:1.4em 0;
}
.article-content th,
.article-content td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-content th{
  color:#fff;
  background:rgba(255,255,255,.03);
}
.article-aside{
  position:relative;
}
.aside-sticky{
  position:sticky;
  top:112px;
  display:grid;
  gap:16px;
}
.rail-card{
  padding:22px;
}
.rail-card h2{
  margin:0 0 12px;
  font-size:1.08rem;
  line-height:1.2;
}
.summary-list{
  display:grid;
  gap:10px;
}
.summary-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--muted);
  font-size:.94rem;
}
.summary-list li::before{
  content:"";
  width:8px;
  height:8px;
  margin-top:.53em;
  border-radius:50%;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  flex:0 0 auto;
}
.check-list{
  display:grid;
  gap:12px;
}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--muted);
  font-size:.94rem;
}
.check-list li::before{
  content:"✓";
  color:var(--accent-3);
  font-weight:800;
  margin-top:-1px;
}
.side-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 16px;
  border-radius:16px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  color:var(--text);
  transition:transform .22s ease, border-color .22s ease, background .22s ease;
}
.side-link:hover{
  transform:translateY(-1px);
  border-color:rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);
}
.side-link span{
  color:var(--muted);
  font-size:.85rem;
}
.related-grid,
.recommend-grid{
  display:grid;
  gap:16px;
}
.recommend-grid{
  grid-template-columns:repeat(3, minmax(0, 1fr));
}
.recommend-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  min-height:180px;
  padding:18px;
  transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
  position:relative;
  overflow:hidden;
}
.recommend-card::after{
  content:"";
  position:absolute;
  inset:auto -24px -24px auto;
  width:110px;
  height:110px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(34,211,238,.16), transparent 70%);
  opacity:.65;
  pointer-events:none;
}
.recommend-card:hover{
  transform:translateY(-2px);
  border-color:rgba(139,92,246,.34);
  box-shadow:0 18px 36px rgba(0,0,0,.28);
}
.recommend-card .tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  width:max-content;
  padding:6px 10px;
  border-radius:999px;
  background:rgba(139,92,246,.10);
  border:1px solid rgba(139,92,246,.20);
  color:#e6ddff;
  font-size:.8rem;
  font-weight:700;
}
.recommend-card h3{
  margin:0;
  font-size:1.08rem;
  line-height:1.35;
}
.recommend-card p{
  margin:0;
  color:var(--muted);
  font-size:.92rem;
  line-height:1.7;
}
.recommend-card .more{
  margin-top:auto;
  color:#dff7ff;
  font-size:.9rem;
  font-weight:700;
}
.cta-strip{
  padding:26px;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:18px;
  align-items:center;
}
.cta-copy h2{
  margin:0;
  font-size:clamp(22px, 2.8vw, 30px);
  line-height:1.2;
}
.cta-copy p{
  margin:10px 0 0;
  color:var(--muted);
  max-width:62ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:12px;
}
.empty-shell{
  padding:34px 28px;
}
.empty-state{
  text-align:center;
  display:grid;
  gap:14px;
  place-items:center;
  padding:18px 0 8px;
}
.empty-state h1,
.empty-state h2{
  margin:0;
  font-size:clamp(28px, 4vw, 40px);
  line-height:1.12;
}
.empty-state p{
  margin:0;
  color:var(--muted);
  max-width:42ch;
}
.site-footer{
  position:relative;
  border-top:1px solid var(--line);
  background:rgba(9,11,16,.9);
  padding:28px 0 34px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr .9fr .7fr;
  gap:24px;
  align-items:start;
}
.footer-brand{
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin-bottom:12px;
}
.footer-brand .brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
}
.footer-brand .brand-name{
  white-space:normal;
}
.footer-copy{
  margin:0;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.8;
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.footer-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:10px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  transition:transform .22s ease, border-color .22s ease, color .22s ease, background .22s ease;
}
.footer-link:hover{
  transform:translateY(-1px);
  color:#fff;
  border-color:rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
}
.footer-tech{
  display:grid;
  gap:10px;
  color:var(--muted);
  font-size:.92rem;
  justify-items:start;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:.84rem;
  font-weight:700;
}
.mini-rule{
  height:1px;
  background:linear-gradient(90deg, transparent, var(--line-strong), transparent);
  border:0;
  margin:0;
}
@media (max-width: 1120px){
  .article-layout{
    grid-template-columns:1fr;
  }
  .aside-sticky{
    position:static;
  }
  .footer-grid{
    grid-template-columns:1fr;
  }
}
@media (max-width: 1024px){
  .article-top,
  .cta-strip{
    grid-template-columns:1fr;
  }
  .cta-actions{
    justify-content:flex-start;
  }
  .recommend-grid{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width: 768px){
  .site-header__inner{
    padding:12px 0 10px;
  }
  .brand-row{
    align-items:flex-start;
    flex-direction:column;
  }
  .header-tools{
    width:100%;
    justify-content:flex-start;
  }
  .chip-nav{
    gap:8px;
  }
  .chip{
    padding:9px 12px;
    font-size:.88rem;
  }
  .section{
    padding-top:54px;
  }
  .article-hero{
    padding-top:22px;
  }
  .article-top,
  .article-card,
  .rail-card,
  .cta-strip,
  .empty-shell{
    padding:22px;
  }
  .article-title{
    font-size:clamp(28px, 8vw, 40px);
  }
  .article-summary{
    font-size:.98rem;
  }
  .article-actions{
    gap:10px;
  }
  .article-actions .btn{
    flex:1 1 180px;
  }
  .recommend-grid{
    grid-template-columns:1fr;
  }
  .footer-links{
    gap:8px;
  }
}
@media (max-width: 520px){
  .container{
    width:min(var(--container), calc(100% - 24px));
  }
  .brand-name{
    font-size:1rem;
  }
  .brand-sub{
    white-space:normal;
    line-height:1.45;
  }
  .header-tools{
    flex-direction:column;
    align-items:flex-start;
  }
  .header-action{
    width:100%;
  }
  .article-meta-row{
    flex-direction:column;
    align-items:flex-start;
  }
  .article-actions,
  .cta-actions{
    flex-direction:column;
  }
  .article-actions .btn,
  .cta-actions .btn{
    width:100%;
  }
  .poster-card{
    padding:18px;
  }
  .poster-stat{
    font-size:1.06rem;
  }
  .footer-grid{
    gap:18px;
  }
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}