/* roulang page: index */
:root{
  --navy:#1a1f3d;
  --navy-deep:#101430;
  --navy-soft:#232a52;
  --navy-line:#2f3765;
  --gold:#ffb400;
  --gold-light:#ffd45e;
  --gold-deep:#e09a00;
  --cyan:#35d6d0;
  --bg:#f5f6fb;
  --bg-alt:#ffffff;
  --text:#1b2036;
  --muted:#6b7391;
  --muted-2:#8b93ad;
  --line:#e3e6f1;
  --radius:12px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-sm:0 2px 10px rgba(26,31,61,.06);
  --shadow-md:0 14px 34px rgba(26,31,61,.10);
  --shadow-gold:0 10px 26px rgba(255,180,0,.30);
  --container:1180px;
  --t:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--gold-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(255,180,0,.65);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(16,20,48,.96);
  border-bottom:1px solid rgba(255,255,255,.07);
  backdrop-filter:blur(10px);
  box-shadow:0 6px 24px rgba(10,13,32,.28);
}
.site-nav{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
}
.brand-mark{
  width:40px;height:40px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold) 45%,#e08a00);
  display:grid;
  place-items:center;
  font-weight:800;
  font-size:17px;
  color:#241a00;
  box-shadow:var(--shadow-gold);
  letter-spacing:-.5px;
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}
.brand-name{
  font-size:17px;
  font-weight:800;
  color:#fff;
  letter-spacing:.3px;
}
.brand-sub{
  font-size:11px;
  color:var(--gold-light);
  letter-spacing:1.6px;
  text-transform:uppercase;
  opacity:.9;
}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:42px;height:38px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:13px;
  letter-spacing:1px;
}
.nav-body{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex:1;
  gap:20px;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:wrap;
}
.nav-list a{
  display:block;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  font-size:14.5px;
  color:rgba(255,255,255,.76);
  font-weight:500;
  transition:background var(--t),color var(--t);
}
.nav-list a:hover{
  color:#fff;
  background:rgba(255,255,255,.09);
}
.nav-list a.active{
  color:var(--navy-deep);
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  font-weight:700;
  box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-cta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.btn-line,.btn-gold{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  font-size:14.5px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-line{
  color:#fff;
  border-color:rgba(255,255,255,.28);
  background:rgba(255,255,255,.04);
}
.btn-line:hover{
  border-color:var(--gold);
  color:var(--gold-light);
  transform:translateY(-1px);
}
.btn-gold{
  color:#241a00;
  background:linear-gradient(135deg,var(--gold-light),var(--gold) 55%,var(--gold-deep));
  box-shadow:var(--shadow-gold);
}
.btn-gold:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(255,180,0,.42);
  color:#1a1200;
}
.btn-gold:active,.btn-line:active{transform:translateY(0)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:radial-gradient(900px 520px at 12% -10%,rgba(53,214,208,.18),transparent 62%),
             radial-gradient(760px 480px at 92% 8%,rgba(255,180,0,.20),transparent 60%),
             linear-gradient(160deg,#151a38 0%,#1a1f3d 52%,#0f1330 100%);
  color:#fff;
  padding:64px 0 0;
}
.hero-photo{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.20;
  mix-blend-mode:luminosity;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(16,20,48,.35) 0%,rgba(16,20,48,.86) 78%,#0f1330 100%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.35fr .9fr;
  gap:48px;
  align-items:start;
  padding-bottom:52px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,180,0,.14);
  border:1px solid rgba(255,180,0,.34);
  color:var(--gold-light);
  font-size:12.5px;
  letter-spacing:1.2px;
  font-weight:600;
}
.hero h1{
  margin-top:20px;
  font-size:clamp(28px,3.5vw,46px);
  line-height:1.26;
  font-weight:800;
  letter-spacing:-.4px;
}
.hero h1 em{
  font-style:normal;
  color:var(--gold);
  text-shadow:0 6px 26px rgba(255,180,0,.35);
}
.hero-lead{
  margin-top:20px;
  max-width:640px;
  color:rgba(255,255,255,.80);
  font-size:15.5px;
  line-height:1.95;
}
.sub-form{
  margin-top:26px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  max-width:520px;
}
.sub-form input{
  flex:1 1 220px;
  min-width:0;
  padding:12px 18px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:14.5px;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{
  outline:none;
  border-color:var(--gold);
  background:rgba(255,255,255,.13);
}
.sub-note{
  margin-top:10px;
  font-size:12.5px;
  color:rgba(255,255,255,.52);
}
.form-msg{
  display:none;
  margin-top:8px;
  font-size:13px;
  color:var(--gold-light);
}
.form-msg.is-on{display:block}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  margin-top:34px;
  max-width:660px;
}
.hero-stats .stat{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius);
  padding:14px 12px;
  text-align:center;
}
.hero-stats b{
  display:block;
  font-size:22px;
  color:var(--gold-light);
  font-weight:800;
  letter-spacing:-.5px;
}
.hero-stats span{
  display:block;
  margin-top:3px;
  font-size:12px;
  color:rgba(255,255,255,.62);
  letter-spacing:.4px;
}

/* roadmap card */
.roadmap-card{
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius-lg);
  padding:24px 22px;
  backdrop-filter:blur(6px);
  box-shadow:0 22px 50px rgba(5,8,24,.38);
}
.roadmap-card h2{
  font-size:15px;
  letter-spacing:1.4px;
  color:var(--gold-light);
  font-weight:700;
  margin-bottom:6px;
}
.roadmap-card .rc-sub{
  font-size:12.5px;
  color:rgba(255,255,255,.55);
  margin-bottom:18px;
}
.roadmap{
  position:relative;
  padding-left:20px;
}
.roadmap::before{
  content:"";
  position:absolute;
  left:5px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--gold),rgba(255,180,0,.05));
}
.roadmap li{
  position:relative;
  padding-bottom:16px;
}
.roadmap li:last-child{padding-bottom:0}
.roadmap li::before{
  content:"";
  position:absolute;
  left:-19px;
  top:7px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--navy-soft);
  border:2px solid rgba(255,255,255,.35);
}
.roadmap li.done::before{background:var(--gold);border-color:var(--gold)}
.roadmap li.current::before{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 0 4px rgba(53,214,208,.20)}
.roadmap .rv{
  font-size:11.5px;
  letter-spacing:1.2px;
  color:var(--muted-2);
  color:rgba(255,255,255,.48);
}
.roadmap .rt{
  font-size:14px;
  color:#fff;
  font-weight:600;
  line-height:1.5;
}
.roadmap .rd{
  font-size:12.5px;
  color:rgba(255,255,255,.58);
  margin-top:2px;
}
.version-strip{
  position:relative;
  z-index:2;
  border-top:1px solid rgba(255,255,255,.09);
  background:rgba(9,12,32,.55);
}
.version-strip .vs-inner{
  display:flex;
  align-items:center;
  gap:26px;
  flex-wrap:wrap;
  padding:14px 0;
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.version-strip strong{color:var(--gold-light);font-weight:700}
.version-strip .dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.25)}

/* ---------- generic section ---------- */
.section{padding:76px 0}
.section.alt{background:var(--bg-alt)}
.section.deep{background:linear-gradient(165deg,#171c3b,#101430 70%);color:#fff}
.section-head{max-width:760px;margin-bottom:42px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tag-label{
  display:inline-block;
  padding:5px 13px;
  border-radius:var(--radius-pill);
  background:rgba(255,180,0,.14);
  color:#a06a00;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:1px;
  margin-bottom:14px;
}
.section.deep .tag-label{
  background:rgba(255,180,0,.16);
  color:var(--gold-light);
}
.section h2{
  font-size:clamp(23px,2.4vw,32px);
  font-weight:800;
  line-height:1.34;
  letter-spacing:-.4px;
}
.section-head p{
  margin-top:14px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.95;
}
.section.deep .section-head p{color:rgba(255,255,255,.72)}
.section.deep h2{color:#fff}

/* ---------- cards / grids ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  height:100%;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(255,180,0,.45);
}
.card h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:9px;
  line-height:1.5;
}
.card p{
  color:var(--muted);
  font-size:14.5px;
  line-height:1.85;
}
.card .num{
  display:inline-grid;
  place-items:center;
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  color:#241a00;
  font-weight:800;
  font-size:15px;
  margin-bottom:14px;
}
.deep .card{
  background:rgba(255,255,255,.05);
  border-color:rgba(255,255,255,.12);
  box-shadow:none;
}
.deep .card p{color:rgba(255,255,255,.70)}
.deep .card h3{color:#fff}

/* stats band */
.stats-band{
  margin-top:-36px;
  position:relative;
  z-index:5;
}
.stats-band .inner{
  background:var(--bg-alt);
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow-md);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stats-band .cell{
  padding:26px 20px;
  border-right:1px solid var(--line);
  text-align:center;
}
.stats-band .cell:last-child{border-right:none}
.stats-band b{
  display:block;
  font-size:27px;
  font-weight:800;
  color:var(--navy);
  letter-spacing:-.6px;
}
.stats-band b i{font-style:normal;color:var(--gold-deep);font-size:18px;margin-left:2px}
.stats-band span{
  display:block;
  margin-top:5px;
  font-size:13px;
  color:var(--muted);
}

/* problem list */
.point-list{margin-top:6px}
.point-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
}
.point-list li:last-child{border-bottom:none}
.point-list .mk{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:8px;
  background:rgba(255,180,0,.16);
  color:#a06a00;
  display:grid;
  place-items:center;
  font-size:13px;
  font-weight:800;
  margin-top:3px;
}
.point-list strong{display:block;font-size:15.5px;margin-bottom:3px}
.point-list p{color:var(--muted);font-size:14px;line-height:1.8}

/* media split */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:46px;
  align-items:center;
}
.split-media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  border:1px solid var(--line);
  background:var(--navy);
}
.split-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.split-media:hover img{transform:scale(1.03)}
.split-body h2{margin-bottom:14px}
.split-body p{color:var(--muted);font-size:15px;line-height:1.95}
.mini-facts{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
  margin-top:22px;
}
.mini-facts div{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:13px 15px;
}
.mini-facts b{display:block;font-size:18px;color:var(--navy);font-weight:800}
.mini-facts span{font-size:12.5px;color:var(--muted)}

/* steps */
.step-card{
  position:relative;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px 24px;
  box-shadow:var(--shadow-sm);
  height:100%;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.step-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(255,180,0,.45);
}
.step-card .step-no{
  position:absolute;
  top:-14px;
  left:24px;
  padding:3px 13px;
  border-radius:var(--radius-pill);
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  color:#241a00;
  font-size:12.5px;
  font-weight:800;
  letter-spacing:1px;
  box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.step-card h3{font-size:17px;margin:10px 0 9px;font-weight:700}
.step-card p{color:var(--muted);font-size:14.5px;line-height:1.85}
.step-card .hint{
  margin-top:14px;
  font-size:12.5px;
  color:#a06a00;
  background:rgba(255,180,0,.13);
  border-radius:8px;
  padding:7px 11px;
  display:inline-block;
}

/* score breakdown */
.score-panel{
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:44px;
  align-items:center;
}
.score-media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 24px 56px rgba(4,7,22,.5);
}
.bars li{margin-bottom:20px}
.bars .bar-top{
  display:flex;
  justify-content:space-between;
  font-size:14px;
  color:rgba(255,255,255,.82);
  margin-bottom:8px;
}
.bars .bar-top b{color:var(--gold-light);font-weight:800}
.bar-track{
  height:10px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.10);
  overflow:hidden;
}
.bar-fill{
  height:100%;
  border-radius:var(--radius-pill);
  background:linear-gradient(90deg,var(--gold-light),var(--gold));
}
.bar-fill.cyan{background:linear-gradient(90deg,#6ff0ea,var(--cyan))}
.total-line{
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.total-line b{font-size:34px;color:var(--gold);font-weight:800;letter-spacing:-1px}
.total-line span{font-size:13px;color:rgba(255,255,255,.6)}

/* stuck points */
.stuck-card{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-left:4px solid rgba(255,180,0,.75);
  border-radius:var(--radius);
  padding:22px 22px 20px;
  box-shadow:var(--shadow-sm);
  height:100%;
  transition:transform var(--t),box-shadow var(--t);
}
.stuck-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.stuck-card h3{
  font-size:16.5px;
  font-weight:700;
  margin-bottom:8px;
  display:flex;
  gap:9px;
  align-items:center;
}
.stuck-card h3::before{
  content:"";
  width:8px;height:8px;
  border-radius:50%;
  background:var(--gold);
  flex:0 0 auto;
}
.stuck-card p{color:var(--muted);font-size:14px;line-height:1.85}
.stuck-card .fix{
  margin-top:12px;
  font-size:13px;
  color:var(--navy);
  background:var(--bg);
  border-radius:8px;
  padding:8px 12px;
}

/* timeline */
.timeline{
  position:relative;
  margin-top:10px;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:10px;
  bottom:10px;
  width:2px;
  background:linear-gradient(180deg,var(--gold),rgba(255,180,0,.12));
}
.timeline li{
  position:relative;
  padding:0 0 28px 0;
}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{
  content:"";
  position:absolute;
  left:-32px;
  top:8px;
  width:12px;height:12px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--gold);
  box-shadow:0 0 0 4px rgba(255,180,0,.14);
}
.timeline h3{
  font-size:16.5px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.timeline h3 span{
  font-size:11.5px;
  font-weight:700;
  letter-spacing:1px;
  color:#a06a00;
  background:rgba(255,180,0,.15);
  border-radius:var(--radius-pill);
  padding:2px 10px;
}
.timeline p{
  margin-top:5px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.85;
}

/* channel wall */
.channel-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  height:100%;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.channel-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-md);
  border-color:rgba(255,180,0,.5);
}
.channel-card .thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--navy);
}
.channel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.channel-card:hover .thumb img{transform:scale(1.05)}
.channel-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.channel-card h3{font-size:18px;font-weight:800;margin-bottom:8px}
.channel-card p{color:var(--muted);font-size:14px;line-height:1.85;flex:1}
.channel-card .go{
  margin-top:16px;
  font-size:13.5px;
  font-weight:700;
  color:var(--gold-deep);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.channel-card:hover .go{color:var(--gold-deep)}
.channel-card .go::after{content:"→";transition:transform var(--t)}
.channel-card:hover .go::after{transform:translateX(4px)}

/* changelog */
.log-list{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.log-item{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:22px;
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.log-item:last-child{border-bottom:none}
.log-item:hover{background:rgba(255,180,0,.045)}
.log-item .ver{
  font-weight:800;
  color:var(--navy);
  font-size:15px;
  letter-spacing:.4px;
}
.log-item .ver i{
  display:block;
  font-style:normal;
  font-size:12px;
  color:var(--muted-2);
  font-weight:500;
  letter-spacing:0;
  margin-top:2px;
}
.log-item h3{font-size:15.5px;font-weight:700;margin-bottom:4px}
.log-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* voices */
.voice-card{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  height:100%;
  position:relative;
  transition:transform var(--t),box-shadow var(--t);
}
.voice-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.voice-card::before{
  content:"“";
  position:absolute;
  top:6px;right:20px;
  font-size:56px;
  line-height:1;
  color:rgba(255,180,0,.28);
  font-family:Georgia,serif;
}
.voice-card p{font-size:15px;line-height:1.9;color:var(--text)}
.voice-user{
  margin-top:18px;
  display:flex;
  align-items:center;
  gap:11px;
}
.voice-user .av{
  width:38px;height:38px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--navy-soft),var(--navy));
  color:var(--gold-light);
  display:grid;
  place-items:center;
  font-weight:800;
  font-size:14px;
}
.voice-user b{display:block;font-size:14px}
.voice-user span{display:block;font-size:12.5px;color:var(--muted-2)}

/* posts */
.posts-layout{
  display:grid;
  grid-template-columns:1.55fr .95fr;
  gap:34px;
  align-items:start;
}
.post-list{display:grid;gap:16px}
.post-card{
  display:block;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-md);
  border-color:rgba(255,180,0,.5);
  color:inherit;
}
.post-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:12.5px;
  color:var(--muted-2);
  margin-bottom:9px;
  flex-wrap:wrap;
}
.post-meta .tag{
  padding:2px 11px;
  border-radius:var(--radius-pill);
  background:rgba(255,180,0,.15);
  color:#a06a00;
  font-weight:700;
  font-size:12px;
}
.post-card h3{
  font-size:17px;
  font-weight:700;
  line-height:1.55;
  margin-bottom:7px;
  transition:color var(--t);
}
.post-card:hover h3{color:var(--gold-deep)}
.post-card p{
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-more{
  display:inline-block;
  margin-top:12px;
  font-size:13px;
  font-weight:700;
  color:var(--gold-deep);
}
.side-box{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px 22px;
  box-shadow:var(--shadow-sm);
}
.side-box h3{
  font-size:15px;
  font-weight:800;
  letter-spacing:1px;
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.side-item{
  display:block;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  transition:padding-left var(--t);
}
.side-item:last-child{border-bottom:none}
.side-item:hover{padding-left:6px;color:inherit}
.side-item b{
  display:block;
  font-size:14.5px;
  font-weight:700;
  line-height:1.6;
  transition:color var(--t);
}
.side-item:hover b{color:var(--gold-deep)}
.side-item span{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  color:var(--muted-2);
}
.empty-note{
  padding:26px 24px;
  background:var(--bg-alt);
  border:1px dashed var(--line);
  border-radius:var(--radius);
  color:var(--muted);
  font-size:14px;
}

/* cta */
.cta-band{
  position:relative;
  overflow:hidden;
  background:radial-gradient(700px 380px at 88% 0%,rgba(255,180,0,.22),transparent 62%),
             linear-gradient(150deg,#1a1f3d,#101430 78%);
  color:#fff;
  padding:74px 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:1.4fr .8fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:800;
  line-height:1.36;
  letter-spacing:-.4px;
}
.cta-band p{
  margin-top:16px;
  color:rgba(255,255,255,.74);
  font-size:15.5px;
  line-height:1.95;
  max-width:660px;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:flex-start;
}
.cta-actions .btn-gold,.cta-actions .btn-line{padding:13px 28px;font-size:15px}
.cta-tip{font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.7}

/* footer */
.site-footer{
  background:#0b0e22;
  color:rgba(255,255,255,.62);
  padding:56px 0 26px;
  border-top:1px solid rgba(255,255,255,.07);
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:44px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  max-width:420px;
  color:rgba(255,255,255,.55);
}
.footer-col h4{
  font-size:14px;
  color:#fff;
  font-weight:700;
  letter-spacing:1px;
  margin-bottom:16px;
}
.footer-col li{margin-bottom:10px}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.60);
}
.footer-col a:hover{color:var(--gold-light)}
.footer-bottom{
  padding-top:22px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(255,255,255,.42);
}
.footer-bottom .dom{color:rgba(255,255,255,.55);letter-spacing:.4px}

/* responsive */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .roadmap-card{max-width:560px}
  .split,.score-panel,.posts-layout,.cta-inner{grid-template-columns:1fr;gap:30px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-band .inner{grid-template-columns:repeat(2,1fr)}
  .stats-band .cell:nth-child(2){border-right:none}
  .stats-band .cell:nth-child(1),.stats-band .cell:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .nav-toggle{display:block}
  .nav-body{
    position:absolute;
    left:0;right:0;
    top:72px;
    background:#101430;
    border-bottom:1px solid rgba(255,255,255,.10);
    padding:18px 20px 22px;
    flex-direction:column;
    align-items:flex-start;
    gap:16px;
    box-shadow:0 20px 40px rgba(5,8,24,.45);
  }
  .nav-body.collapse:not(.show){display:none}
  .nav-body.collapse.show{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;width:100%;gap:4px}
  .nav-list a{padding:11px 14px;font-size:15px}
  .nav-cta{width:100%;flex-wrap:wrap}
  .nav-cta .btn-line,.nav-cta .btn-gold{flex:1 1 auto}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .hero{padding-top:44px}
  .hero-lead{font-size:15px}
  .stats-band{margin-top:-24px}
  .log-item{grid-template-columns:1fr;gap:6px;padding:18px 20px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .cta-actions{flex-direction:row;flex-wrap:wrap;align-items:center}
  .cta-tip{width:100%}
}
@media (max-width:520px){
  .brand-name{font-size:15px}
  .brand-sub{font-size:10px;letter-spacing:1.2px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:10px}
  .hero-stats b{font-size:19px}
  .stats-band .inner{grid-template-columns:1fr}
  .stats-band .cell{border-right:none;border-bottom:1px solid var(--line);padding:20px}
  .stats-band .cell:last-child{border-bottom:none}
  .section h2{font-size:22px}
  .sub-form input{flex:1 1 100%}
  .sub-form .btn-gold{width:100%}
  .mini-facts{grid-template-columns:1fr}
  .timeline{padding-left:28px}
  .total-line b{font-size:28px}
}

/* roulang page: article */
:root{
 --navy:#1a1f3d;
 --navy-deep:#101430;
 --navy-soft:#232a52;
 --navy-line:#2f3765;
 --gold:#ffb400;
 --gold-light:#ffd45e;
 --gold-deep:#e09a00;
 --cyan:#35d6d0;
 --bg:#f5f6fb;
 --bg-alt:#ffffff;
 --text:#1b2036;
 --muted:#6b7391;
 --muted-2:#8b93ad;
 --line:#e3e6f1;
 --radius:12px;
 --radius-lg:18px;
 --radius-pill:999px;
 --shadow-sm:0 2px 10px rgba(26,31,61,.06);
 --shadow-md:0 14px 34px rgba(26,31,61,.10);
 --shadow-gold:0 10px 26px rgba(255,180,0,.30);
 --container:1180px;
 --t:.22s ease;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--gold-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.2px;color:var(--text)}
p{margin:0 0 1em}
ul,ol{margin:0}
.container{
 width:100%;
 max-width:var(--container);
 margin:0 auto;
 padding-left:20px;
 padding-right:20px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;
 top:0;
 z-index:60;
 background:rgba(16,20,48,.96);
 border-bottom:1px solid rgba(255,255,255,.07);
 backdrop-filter:blur(10px);
 box-shadow:0 6px 24px rgba(10,13,32,.28);
}
.site-nav{
 display:flex;
 align-items:center;
 gap:28px;
 min-height:72px;
}
.brand{
 display:flex;
 align-items:center;
 gap:11px;
 flex-shrink:0;
}
.brand-mark{
 width:40px;height:40px;
 border-radius:11px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 45%,#e08a00);
 display:grid;
 place-items:center;
 font-weight:800;
 font-size:17px;
 color:#241a00;
 box-shadow:var(--shadow-gold);
 letter-spacing:-.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:.3px}
.brand-sub{font-size:11px;color:var(--gold-light);letter-spacing:1.6px;text-transform:uppercase;opacity:.9}
.nav-toggle{
 display:none;
 margin-left:auto;
 width:auto;
 padding:0 14px;
 height:38px;
 border-radius:10px;
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.06);
 color:#fff;
 font-size:13px;
 letter-spacing:1px;
 cursor:pointer;
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold-light)}
.site-nav .nav-body{
 display:flex;
 align-items:center;
 justify-content:space-between;
 flex:1;
 gap:20px;
}
.nav-list{
 display:flex;
 align-items:center;
 gap:6px;
 flex-wrap:wrap;
 list-style:none;
 padding:0;
 margin:0;
}
.nav-list a{
 display:block;
 padding:9px 14px;
 border-radius:var(--radius-pill);
 font-size:14.5px;
 color:rgba(255,255,255,.76);
 font-weight:500;
 transition:background var(--t),color var(--t);
}
.nav-list a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-list a.active{
 color:var(--navy-deep);
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 font-weight:700;
 box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line,.btn-gold{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 padding:10px 20px;
 border-radius:var(--radius-pill);
 font-size:14.5px;
 font-weight:700;
 border:1px solid transparent;
 cursor:pointer;
 transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
 white-space:nowrap;
}
.btn-line{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.04)}
.btn-line:hover{border-color:var(--gold);color:var(--gold-light);transform:translateY(-1px)}
.btn-gold{
 color:#241a00;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 55%,var(--gold-deep));
 box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);color:#1a1200}
.btn-gold:active,.btn-line:active{transform:translateY(0)}
.btn-gold:focus-visible,.btn-line:focus-visible,.nav-list a:focus-visible,.brand:focus-visible{
 outline:2px solid var(--gold-light);outline-offset:3px;
}
/* ---------- article hero ---------- */
.article-hero{
 position:relative;
 overflow:hidden;
 color:#fff;
 padding:44px 0 56px;
 background:
 radial-gradient(700px 400px at 8% -20%,rgba(53,214,208,.20),transparent 62%),
 radial-gradient(660px 420px at 94% 0%,rgba(255,180,0,.22),transparent 60%),
 linear-gradient(155deg,#151a38 0%,#1a1f3d 55%,#0f1330 100%);
}
.article-hero::after{
 content:"";
 position:absolute;
 left:0;right:0;bottom:0;
 height:1px;
 background:linear-gradient(90deg,transparent,rgba(255,180,0,.5),transparent);
}
.crumb{
 display:flex;
 align-items:center;
 gap:10px;
 flex-wrap:wrap;
 font-size:13px;
 color:rgba(255,255,255,.58);
}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:var(--gold-light)}
.crumb .sep{opacity:.45}
.article-hero h1{
 margin:18px 0 0;
 font-size:clamp(24px,3.1vw,38px);
 line-height:1.35;
 color:#fff;
 max-width:880px;
}
.article-meta{
 display:flex;
 flex-wrap:wrap;
 gap:8px 22px;
 margin-top:20px;
 font-size:13.5px;
 color:rgba(255,255,255,.66);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta b{color:rgba(255,255,255,.9);font-weight:600}
.dot-gold{width:6px;height:6px;border-radius:50%;background:var(--gold);display:inline-block}
.tag-gold{
 display:inline-flex;
 align-items:center;
 padding:5px 14px;
 border-radius:var(--radius-pill);
 background:rgba(255,180,0,.16);
 border:1px solid rgba(255,180,0,.38);
 color:var(--gold-light);
 font-size:12.5px;
 font-weight:700;
 letter-spacing:.8px;
}
/* ---------- layout ---------- */
.article-shell{padding:44px 0 20px}
.article-grid{
 display:grid;
 grid-template-columns:minmax(0,1fr) 320px;
 gap:36px;
 align-items:start;
}
.article-main{min-width:0}
.panel{
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);
 padding:30px 32px;
}
.panel + .panel{margin-top:22px}
.cover{
 border-radius:var(--radius);
 overflow:hidden;
 margin-bottom:26px;
 box-shadow:var(--shadow-sm);
 border:1px solid var(--line);
}
.cover img{width:100%;object-fit:cover;aspect-ratio:16/9}
.article-content{
 max-width:720px;
 font-size:16.5px;
 line-height:1.95;
 color:#2b3150;
}
.article-content > *:first-child{margin-top:0}
.article-content h2{
 font-size:22px;
 margin:36px 0 14px;
 padding-left:13px;
 border-left:4px solid var(--gold);
 line-height:1.45;
 color:var(--navy);
}
.article-content h3{
 font-size:18px;
 margin:26px 0 10px;
 color:var(--navy-soft);
}
.article-content h4{font-size:16px;margin:20px 0 8px;color:var(--navy-soft)}
.article-content p{margin:0 0 17px}
.article-content ul,.article-content ol{padding-left:22px;margin:0 0 18px}
.article-content li{margin-bottom:9px}
.article-content a{color:var(--gold-deep);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--navy)}
.article-content img{border-radius:var(--radius);margin:20px 0;box-shadow:var(--shadow-sm)}
.article-content blockquote{
 margin:22px 0;
 padding:16px 22px;
 background:#f7f8fe;
 border-left:4px solid var(--gold);
 border-radius:0 var(--radius) var(--radius) 0;
 color:var(--muted);
 font-size:15.5px;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 13px;text-align:left}
.article-content th{background:#f2f4fb;font-weight:700;color:var(--navy-soft)}
.article-content code{background:#f1f3fb;padding:2px 6px;border-radius:6px;font-size:14px}
.article-empty{
 text-align:center;
 padding:52px 20px;
 border:1px dashed var(--line);
 border-radius:var(--radius);
 background:#fafbff;
}
.article-empty h2{font-size:22px;margin-bottom:10px;color:var(--navy)}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px}
/* ---------- side ---------- */
.side-card{
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);
 padding:24px 22px;
 margin-bottom:20px;
}
.side-card h3{
 display:flex;
 align-items:center;
 gap:9px;
 font-size:15.5px;
 color:var(--navy);
 margin-bottom:16px;
}
.side-card h3::before{
 content:"";
 width:4px;height:16px;border-radius:3px;
 background:linear-gradient(180deg,var(--gold-light),var(--gold-deep));
}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{
 position:relative;
 padding-left:18px;
 font-size:14px;
 line-height:1.75;
 color:var(--muted);
 margin-bottom:13px;
}
.side-list li:last-child{margin-bottom:0}
.side-list li::before{
 content:"";
 position:absolute;
 left:0;top:9px;
 width:6px;height:6px;
 border-radius:2px;
 background:var(--gold);
}
.side-dark{
 background:linear-gradient(160deg,var(--navy-soft),var(--navy-deep));
 border-color:var(--navy-line);
 color:#fff;
}
.side-dark h3{color:#fff}
.side-dark h3::before{background:linear-gradient(180deg,var(--cyan),var(--gold))}
.side-dark p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.8;margin-bottom:16px}
.side-form{display:flex;flex-direction:column;gap:10px}
.side-form input{
 width:100%;
 padding:11px 16px;
 border-radius:var(--radius-pill);
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.08);
 color:#fff;
 font-size:14px;
}
.side-form input::placeholder{color:rgba(255,255,255,.48)}
.side-form input:focus{outline:none;border-color:var(--gold);background:rgba(255,255,255,.14)}
.side-form .btn-gold{width:100%}
.form-msg{display:none;margin-top:10px;font-size:13px;color:var(--gold-light)}
.form-msg.is-on{display:block}
/* ---------- data cells ---------- */
.data-grid{
 display:grid;
 grid-template-columns:repeat(auto-fit,minmax(148px,1fr));
 gap:14px;
 margin-top:22px;
}
.data-cell{
 background:#fafbff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:18px 14px;
 text-align:center;
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.data-cell:hover{
 transform:translateY(-3px);
 box-shadow:var(--shadow-md);
 border-color:rgba(255,180,0,.45);
}
.data-cell b{display:block;font-size:23px;color:var(--navy);letter-spacing:-.6px;line-height:1.3}
.data-cell b i{font-style:normal;font-size:13.5px;color:var(--gold-deep);margin-left:2px}
.data-cell span{display:block;margin-top:7px;font-size:13px;color:var(--muted)}
/* ---------- section ---------- */
.section-block{padding:56px 0}
.section-block.alt{
 background:var(--bg-alt);
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.sec-head{max-width:720px;margin-bottom:30px}
.kicker{
 display:inline-flex;
 align-items:center;
 gap:8px;
 font-size:12.5px;
 font-weight:700;
 letter-spacing:1.4px;
 color:var(--gold-deep);
 text-transform:uppercase;
}
.kicker::before{
 content:"";
 width:18px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--gold),transparent);
}
.sec-head h2{font-size:clamp(21px,2.4vw,28px);margin:12px 0 12px;line-height:1.4}
.sec-head p{color:var(--muted);font-size:15px;line-height:1.85;margin:0}
.split{
 display:grid;
 grid-template-columns:1.05fr .95fr;
 gap:32px;
 align-items:center;
}
.split-figure{
 border-radius:var(--radius-lg);
 overflow:hidden;
 border:1px solid var(--line);
 box-shadow:var(--shadow-md);
}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-text h3{font-size:19px;margin-bottom:12px;color:var(--navy)}
.split-text p{font-size:15px;color:var(--muted);line-height:1.9}
.tick-list{list-style:none;padding:0;margin:0}
.tick-list li{
 position:relative;
 padding-left:26px;
 font-size:14.5px;
 color:#39405f;
 line-height:1.8;
 margin-bottom:11px;
}
.tick-list li::before{
 content:"";
 position:absolute;
 left:0;top:8px;
 width:13px;height:13px;
 border-radius:4px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 2px 6px rgba(255,180,0,.4);
}
.tick-list li b{color:var(--navy)}
/* ---------- channel matrix ---------- */
.channel-grid{
 display:grid;
 grid-template-columns:repeat(3,1fr);
 gap:20px;
}
.channel-card{
 display:flex;
 flex-direction:column;
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:26px 24px;
 box-shadow:var(--shadow-sm);
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.channel-card:hover{
 transform:translateY(-5px);
 box-shadow:var(--shadow-md);
 border-color:rgba(255,180,0,.55);
 color:inherit;
}
.channel-card .num{
 font-size:12px;
 font-weight:800;
 letter-spacing:2px;
 color:var(--gold-deep);
}
.channel-card h3{font-size:18.5px;margin:10px 0 10px;color:var(--navy)}
.channel-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 16px;flex:1}
.channel-card .more{font-size:13.5px;font-weight:700;color:var(--gold-deep);display:inline-flex;align-items:center;gap:6px}
.channel-card .more::after{content:"›";font-size:17px;line-height:1}
/* ---------- faq ---------- */
.faq-grid{display:grid;gap:14px;max-width:940px}
.faq-item{
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-left:4px solid var(--gold);
 border-radius:var(--radius);
 padding:20px 24px;
 box-shadow:var(--shadow-sm);
 transition:box-shadow var(--t),transform var(--t);
}
.faq-item:hover{box-shadow:var(--shadow-md);transform:translateX(2px)}
.faq-item h3{font-size:16px;color:var(--navy);margin-bottom:9px}
.faq-item p{font-size:14.5px;color:var(--muted);line-height:1.85;margin:0}
/* ---------- cta ---------- */
.cta-band{
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:28px;
 flex-wrap:wrap;
 padding:40px 36px;
 border-radius:var(--radius-lg);
 color:#fff;
 background:
 radial-gradient(520px 280px at 88% 0%,rgba(255,180,0,.28),transparent 62%),
 radial-gradient(420px 260px at 4% 100%,rgba(53,214,208,.22),transparent 60%),
 linear-gradient(140deg,#1a1f3d,#101430);
 box-shadow:var(--shadow-md);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.3vw,26px);margin-bottom:10px;line-height:1.4}
.cta-band p{color:rgba(255,255,255,.74);font-size:14.5px;margin:0;max-width:560px;line-height:1.85}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
/* ---------- footer ---------- */
.site-footer{
 background:linear-gradient(170deg,#151a38,#0e1230);
 color:rgba(255,255,255,.72);
 padding:56px 0 26px;
 margin-top:64px;
 border-top:1px solid rgba(255,180,0,.22);
}
.footer-top{
 display:grid;
 grid-template-columns:1.5fr .8fr .9fr;
 gap:44px;
 padding-bottom:34px;
 border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:420px;margin:0}
.footer-col h4{
 font-size:14px;
 color:#fff;
 margin-bottom:16px;
 letter-spacing:.6px;
}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-col a:hover{color:var(--gold-light)}
.footer-bottom{
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:14px;
 flex-wrap:wrap;
 padding-top:22px;
 font-size:13px;
 color:rgba(255,255,255,.46);
}
.footer-bottom .dom{color:rgba(255,180,0,.7);letter-spacing:.5px}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .article-grid{grid-template-columns:minmax(0,1fr) 290px;gap:26px}
 .panel{padding:26px 24px}
 .split{grid-template-columns:1fr;gap:24px}
 .channel-grid{grid-template-columns:1fr 1fr}
 .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991.98px){
 .site-nav{flex-wrap:wrap;gap:12px;padding:12px 0}
 .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
 .site-nav .nav-body{
  display:none;
  flex-direction:column;
  align-items:stretch;
  width:100%;
  gap:12px;
  padding:12px 0 6px;
  border-top:1px solid rgba(255,255,255,.1);
 }
 .site-nav .nav-body.show{display:flex}
 .nav-list{flex-direction:column;align-items:stretch;gap:4px;width:100%}
 .nav-list a{padding:11px 14px}
 .nav-cta{flex-direction:column;align-items:stretch;width:100%}
 .nav-cta .btn-line,.nav-cta .btn-gold{width:100%}
}
@media (max-width:900px){
 .article-grid{grid-template-columns:1fr}
 .article-hero{padding:32px 0 40px}
}
@media (max-width:768px){
 .article-shell{padding:30px 0 10px}
 .panel{padding:22px 18px;border-radius:var(--radius)}
 .section-block{padding:42px 0}
 .channel-grid{grid-template-columns:1fr}
 .cta-band{padding:30px 22px}
 .footer-top{grid-template-columns:1fr 1fr;gap:28px}
 .footer-brand{grid-column:1 / -1}
 .article-content{font-size:16px}
 .data-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
 .brand-name{font-size:15px}
 .brand-sub{font-size:10px;letter-spacing:1.1px}
 .brand-mark{width:36px;height:36px;font-size:15px}
 .article-hero h1{font-size:23px}
 .article-meta{font-size:12.5px;gap:6px 14px}
 .panel{padding:20px 15px}
 .footer-top{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start}
 .data-grid{grid-template-columns:1fr}
 .faq-item{padding:17px 18px}
 .cta-actions{width:100%}
 .cta-actions .btn-gold,.cta-actions .btn-line{width:100%}
}

/* roulang page: category1 */
:root{
 --navy:#1a1f3d;
 --navy-deep:#101430;
 --navy-soft:#232a52;
 --navy-line:#2f3765;
 --gold:#ffb400;
 --gold-light:#ffd45e;
 --gold-deep:#e09a00;
 --cyan:#35d6d0;
 --bg:#f5f6fb;
 --bg-alt:#ffffff;
 --text:#1b2036;
 --muted:#6b7391;
 --muted-2:#8b93ad;
 --line:#e3e6f1;
 --radius:12px;
 --radius-lg:18px;
 --radius-pill:999px;
 --shadow-sm:0 2px 10px rgba(26,31,61,.06);
 --shadow-md:0 14px 34px rgba(26,31,61,.10);
 --shadow-gold:0 10px 26px rgba(255,180,0,.30);
 --container:1180px;
 --t:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--gold-deep)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{
 outline:2px solid var(--gold);
 outline-offset:2px;
}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--navy);letter-spacing:-.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{
 width:100%;
 max-width:var(--container);
 margin:0 auto;
 padding-left:20px;
 padding-right:20px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;
 top:0;
 z-index:60;
 background:rgba(16,20,48,.96);
 border-bottom:1px solid rgba(255,255,255,.07);
 backdrop-filter:blur(10px);
 box-shadow:0 6px 24px rgba(10,13,32,.28);
}
.site-nav{
 display:flex;
 align-items:center;
 gap:28px;
 min-height:72px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:40px;height:40px;
 border-radius:11px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 45%,#e08a00);
 display:grid;
 place-items:center;
 font-weight:800;
 font-size:17px;
 color:#241a00;
 box-shadow:var(--shadow-gold);
 letter-spacing:-.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:.3px}
.brand-sub{font-size:11px;color:var(--gold-light);letter-spacing:1.6px;text-transform:uppercase;opacity:.9}
.nav-toggle{
 display:none;
 margin-left:auto;
 width:46px;height:38px;
 border-radius:10px;
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.06);
 color:#fff;
 font-size:13px;
 letter-spacing:1px;
}
.site-nav .nav-body{display:flex;align-items:center;justify-content:space-between;flex:1;gap:20px}
.nav-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-list a{
 display:block;
 padding:9px 14px;
 border-radius:var(--radius-pill);
 font-size:14.5px;
 color:rgba(255,255,255,.76);
 font-weight:500;
 transition:background var(--t),color var(--t);
}
.nav-list a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-list a.active{
 color:var(--navy-deep);
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 font-weight:700;
 box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line,.btn-gold{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 padding:10px 20px;
 border-radius:var(--radius-pill);
 font-size:14.5px;
 font-weight:700;
 border:1px solid transparent;
 cursor:pointer;
 transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
 white-space:nowrap;
}
.btn-line{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.04)}
.btn-line:hover{border-color:var(--gold);color:var(--gold-light);transform:translateY(-1px)}
.btn-gold{
 color:#241a00;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 55%,var(--gold-deep));
 box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);color:#1a1200}
.btn-gold:active,.btn-line:active{transform:translateY(0)}
.btn-gold-lg{padding:14px 30px;font-size:16px}
/* ---------- category hero ---------- */
.cat-hero{
 position:relative;
 overflow:hidden;
 color:#fff;
 padding:0 0 66px;
 background:
 radial-gradient(880px 520px at 8% -12%,rgba(53,214,208,.20),transparent 60%),
 radial-gradient(760px 500px at 94% 4%,rgba(255,180,0,.22),transparent 62%),
 linear-gradient(160deg,#151a38 0%,#1a1f3d 54%,#0f1330 100%);
}
.cat-hero-bg{
 position:absolute;
 inset:0;
 width:100%;
 height:100%;
 object-fit:cover;
 opacity:.16;
 mix-blend-mode:luminosity;
}
.cat-hero::after{
 content:"";
 position:absolute;
 inset:0;
 background:linear-gradient(180deg,rgba(16,20,48,.34) 0%,rgba(16,20,48,.88) 76%,#0f1330 100%);
 pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.crumb{
 display:flex;
 align-items:center;
 gap:9px;
 padding:24px 0 0;
 font-size:13px;
 color:rgba(255,255,255,.55);
}
.crumb a{color:rgba(255,255,255,.7)}
.crumb a:hover{color:var(--gold-light)}
.crumb span.sep{opacity:.45}
.cat-hero-grid{
 display:grid;
 grid-template-columns:1.22fr .78fr;
 gap:46px;
 align-items:start;
 padding-top:26px;
}
.eyebrow{
 display:inline-flex;
 align-items:center;
 gap:8px;
 padding:6px 14px;
 border-radius:var(--radius-pill);
 background:rgba(255,180,0,.14);
 border:1px solid rgba(255,180,0,.34);
 color:var(--gold-light);
 font-size:12.5px;
 letter-spacing:1.2px;
 font-weight:600;
}
.cat-hero h1{
 margin-top:20px;
 font-size:clamp(27px,3.3vw,42px);
 line-height:1.32;
 color:#fff;
 font-weight:800;
 letter-spacing:-.4px;
}
.cat-hero h1 em{font-style:normal;color:var(--gold);text-shadow:0 6px 26px rgba(255,180,0,.35)}
.cat-lead{
 margin-top:20px;
 max-width:620px;
 color:rgba(255,255,255,.80);
 font-size:15.5px;
 line-height:1.95;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
 display:inline-flex;
 align-items:center;
 padding:7px 15px;
 border-radius:var(--radius-pill);
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.13);
 font-size:13px;
 color:rgba(255,255,255,.82);
}
.hero-pain{
 margin-top:26px;
 padding:16px 20px;
 border-left:3px solid var(--gold);
 border-radius:0 var(--radius) var(--radius) 0;
 background:rgba(255,255,255,.06);
 font-size:14.5px;
 color:rgba(255,255,255,.86);
 max-width:620px;
}
/* ---------- quiz card ---------- */
.quiz-card{
 background:#fff;
 border-radius:var(--radius-lg);
 box-shadow:0 22px 54px rgba(6,9,26,.38);
 padding:26px 24px 24px;
 color:var(--text);
 margin-top:8px;
}
.quiz-title{font-size:19px;color:var(--navy);font-weight:800;line-height:1.5}
.quiz-sub{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.75}
.quiz-field{margin-top:16px}
.quiz-field label{
 display:block;
 font-size:12.5px;
 font-weight:700;
 letter-spacing:.6px;
 color:var(--muted);
 margin-bottom:7px;
}
.quiz-field select,.quiz-field input{
 width:100%;
 padding:12px 15px;
 border-radius:var(--radius);
 border:1px solid var(--line);
 background:#fbfcff;
 font-size:14.5px;
 color:var(--text);
 transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.quiz-field select:focus,.quiz-field input:focus{
 border-color:var(--gold);
 background:#fff;
 box-shadow:0 0 0 4px rgba(255,180,0,.14);
 outline:none;
}
.quiz-card .btn-gold{width:100%;margin-top:18px;padding:13px 20px}
.form-msg{display:none;margin-top:12px;font-size:13px;color:var(--gold-deep);line-height:1.7}
.form-msg.is-on{display:block}
/* ---------- sections ---------- */
.sec{padding:66px 0}
.sec-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-dark{
 background:linear-gradient(150deg,#151a38,#1a1f3d 58%,#0f1330);
 color:#fff;
}
.sec-dark h2,.sec-dark h3{color:#fff}
.sec-dark .sec-sub{color:rgba(255,255,255,.72)}
.sec-head{max-width:760px}
.sec-head.row-head{
 display:flex;
 align-items:flex-end;
 justify-content:space-between;
 gap:32px;
 max-width:none;
 flex-wrap:wrap;
}
.sec-kicker{
 display:inline-block;
 font-size:12.5px;
 font-weight:700;
 letter-spacing:2px;
 color:var(--gold-deep);
 text-transform:uppercase;
 margin-bottom:12px;
}
.sec-dark .sec-kicker{color:var(--gold-light)}
.sec-title{font-size:clamp(22px,2.4vw,30px);line-height:1.42}
.sec-sub{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.9;max-width:760px}
.sec-body{margin-top:38px}
/* ---------- score breakdown ---------- */
.split{
 display:grid;
 grid-template-columns:1fr 1.05fr;
 gap:48px;
 align-items:start;
}
.split-note{
 margin-top:20px;
 padding:18px 20px;
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 font-size:14.5px;
 color:var(--muted);
 line-height:1.85;
}
.split-note b{color:var(--navy)}
.score-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.score-card{
 background:#fff;
 border:1px solid var(--line);
 border-left:4px solid var(--gold);
 border-radius:var(--radius);
 padding:18px 20px;
 box-shadow:var(--shadow-sm);
 transition:transform var(--t),box-shadow var(--t);
}
.score-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.score-card b{display:block;font-size:27px;line-height:1.2;color:var(--navy);font-weight:800}
.score-card span{display:block;margin-top:4px;font-size:13.5px;color:var(--muted)}
.score-card small{display:block;margin-top:10px;font-size:12.5px;color:var(--muted-2);line-height:1.7}
.score-total{
 grid-column:1 / -1;
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:16px;
 padding:18px 22px;
 border-radius:var(--radius);
 background:linear-gradient(135deg,rgba(255,180,0,.14),rgba(53,214,208,.12));
 border:1px solid rgba(255,180,0,.36);
}
.score-total b{font-size:26px;color:var(--navy)}
.score-total span{font-size:13.5px;color:var(--muted);font-weight:600}
/* ---------- route cards ---------- */
.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.route-card{
 display:flex;
 flex-direction:column;
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 overflow:hidden;
 box-shadow:var(--shadow-sm);
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.route-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5)}
.route-thumb{position:relative;overflow:hidden}
.route-thumb img{width:100%;height:176px;object-fit:cover;transition:transform .4s ease}
.route-card:hover .route-thumb img{transform:scale(1.05)}
.route-thumb .badge-rank{
 position:absolute;
 top:14px;left:14px;
 padding:5px 12px;
 border-radius:var(--radius-pill);
 background:rgba(16,20,48,.86);
 color:var(--gold-light);
 font-size:12px;
 font-weight:700;
 letter-spacing:.6px;
}
.route-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.route-body h3{font-size:18px;line-height:1.5}
.route-body p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85}
.route-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.route-tags span{
 padding:4px 11px;
 border-radius:var(--radius-pill);
 background:rgba(26,31,61,.06);
 color:var(--navy-soft);
 font-size:12px;
 font-weight:600;
}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{
 position:relative;
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:26px 24px 24px;
 box-shadow:var(--shadow-sm);
 transition:transform var(--t),box-shadow var(--t);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step::before{
 counter-increment:step;
 content:"0" counter(step);
 display:block;
 font-size:34px;
 font-weight:800;
 line-height:1;
 color:rgba(26,31,61,.10);
 margin-bottom:14px;
}
.step h3{font-size:17.5px}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.85}
.step .step-kpi{
 display:inline-block;
 margin-top:16px;
 padding:5px 13px;
 border-radius:var(--radius-pill);
 background:rgba(255,180,0,.14);
 color:var(--gold-deep);
 font-size:12.5px;
 font-weight:700;
}
/* ---------- tiers ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tier{
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:22px 20px;
 box-shadow:var(--shadow-sm);
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.tier:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(53,214,208,.55)}
.tier .tier-top{
 display:inline-block;
 padding:4px 12px;
 border-radius:var(--radius-pill);
 background:rgba(26,31,61,.07);
 color:var(--navy-soft);
 font-size:12px;
 font-weight:700;
 letter-spacing:.5px;
}
.tier h3{margin-top:14px;font-size:17px}
.tier .tier-q{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8}
.tier .tier-fix{
 margin-top:14px;
 padding-top:14px;
 border-top:1px dashed var(--line);
 font-size:13.5px;
 color:var(--navy-soft);
 line-height:1.8;
}
.tier .tier-fix strong{color:var(--gold-deep)}
/* ---------- breakpoints block ---------- */
.bp-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:center}
.bp-figure{
 position:relative;
 border-radius:var(--radius-lg);
 overflow:hidden;
 box-shadow:var(--shadow-md);
}
.bp-figure img{width:100%;height:340px;object-fit:cover}
.bp-figure .bp-cap{
 position:absolute;
 left:18px;right:18px;bottom:18px;
 padding:12px 16px;
 border-radius:var(--radius);
 background:rgba(16,20,48,.78);
 backdrop-filter:blur(6px);
 color:#fff;
 font-size:13px;
 line-height:1.7;
}
.bp-list li{
 display:flex;
 gap:16px;
 padding:18px 20px;
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 margin-bottom:14px;
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.bp-list li:hover{transform:translateX(4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5)}
.bp-idx{
 flex-shrink:0;
 width:34px;height:34px;
 border-radius:10px;
 display:grid;place-items:center;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 color:#241a00;
 font-weight:800;
 font-size:14px;
}
.bp-list h3{font-size:16px}
.bp-list p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.8}
/* ---------- faq ---------- */
.faq-item{
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 margin-bottom:14px;
 overflow:hidden;
 transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:rgba(255,180,0,.45);box-shadow:var(--shadow-md)}
.faq-item summary{
 list-style:none;
 cursor:pointer;
 position:relative;
 padding:18px 54px 18px 22px;
 font-weight:700;
 font-size:16px;
 color:var(--navy);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";
 position:absolute;
 right:22px;top:50%;
 transform:translateY(-50%);
 font-size:21px;
 font-weight:700;
 color:var(--gold-deep);
 line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-item[open]{border-color:rgba(255,180,0,.55)}
.faq-body{padding:0 22px 20px;font-size:14.8px;color:var(--muted);line-height:1.9}
/* ---------- cms posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 overflow:hidden;
 box-shadow:var(--shadow-sm);
 display:flex;
 flex-direction:column;
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5)}
.post-thumb{display:block;overflow:hidden}
.post-thumb img{width:100%;height:158px;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-cat{
 align-self:flex-start;
 padding:4px 12px;
 border-radius:var(--radius-pill);
 background:rgba(255,180,0,.16);
 color:var(--gold-deep);
 font-size:12px;
 font-weight:700;
}
.post-body h3{margin-top:12px;font-size:16.5px;line-height:1.6}
.post-body h3 a:hover{color:var(--gold-deep)}
.post-body p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8}
.post-meta{
 margin-top:16px;
 padding-top:14px;
 border-top:1px dashed var(--line);
 display:flex;
 align-items:center;
 justify-content:space-between;
 font-size:12.5px;
 color:var(--muted-2);
}
.post-meta .go{color:var(--navy-soft);font-weight:700}
.post-card:hover .post-meta .go{color:var(--gold-deep)}
.empty-note{
 padding:26px 24px;
 border-radius:var(--radius);
 border:1px dashed var(--line);
 background:#fff;
 color:var(--muted);
 font-size:14.5px;
 text-align:center;
}
/* ---------- cta band ---------- */
.cta-band{
 background:
 radial-gradient(560px 320px at 12% 0%,rgba(53,214,208,.22),transparent 62%),
 linear-gradient(135deg,#1a1f3d,#0f1330);
 color:#fff;
 border-radius:var(--radius-lg);
 padding:44px 46px;
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:32px;
 box-shadow:var(--shadow-md);
 flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.2vw,27px);line-height:1.45}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.74);font-size:14.8px;line-height:1.85;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
/* ---------- footer ---------- */
.site-footer{
 background:var(--navy-deep);
 color:rgba(255,255,255,.72);
 padding:56px 0 0;
 margin-top:0;
}
.footer-top{
 display:grid;
 grid-template-columns:1.5fr .8fr .9fr;
 gap:40px;
 padding-bottom:38px;
 border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:420px}
.site-footer .brand-name{color:#fff}
.footer-col h4{
 color:#fff;
 font-size:15px;
 margin-bottom:16px;
 letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col ul a:hover{color:var(--gold-light)}
.footer-bottom{
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:18px;
 padding:22px 0;
 font-size:13px;
 color:rgba(255,255,255,.5);
 flex-wrap:wrap;
}
.footer-bottom .dom{letter-spacing:.4px}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .cat-hero-grid{grid-template-columns:1fr;gap:34px}
 .split{grid-template-columns:1fr;gap:34px}
 .route-grid{grid-template-columns:repeat(2,1fr)}
 .post-grid{grid-template-columns:repeat(2,1fr)}
 .tier-grid{grid-template-columns:repeat(2,1fr)}
 .steps{grid-template-columns:1fr}
 .bp-wrap{grid-template-columns:1fr}
 .bp-figure img{height:300px}
 .footer-top{grid-template-columns:1fr 1fr;gap:32px}
 .footer-brand{grid-column:1 / -1}
}
@media (max-width:991.98px){
 .nav-toggle{display:grid;place-items:center}
 .site-nav{flex-wrap:wrap;padding:12px 0}
 .site-nav .nav-body{
  flex-direction:column;
  align-items:stretch;
  gap:14px;
  flex:1 0 100%;
  padding:12px 0 6px;
 }
 .site-nav .nav-body.collapse:not(.show){display:none}
 .site-nav .nav-body.collapse.show{display:flex}
 .nav-list{flex-direction:column;align-items:stretch;gap:4px}
 .nav-list a{padding:11px 14px;border-radius:10px}
 .nav-cta{flex-wrap:wrap}
 .nav-cta .btn-line,.nav-cta .btn-gold{flex:1 1 150px}
}
@media (max-width:768px){
 .sec{padding:50px 0}
 .cat-hero{padding-bottom:50px}
 .quiz-card{padding:22px 20px}
 .route-grid{grid-template-columns:1fr}
 .post-grid{grid-template-columns:1fr}
 .score-grid{grid-template-columns:1fr}
 .score-total{flex-direction:column;align-items:flex-start;gap:6px}
 .cta-band{padding:32px 24px}
 .cta-actions{width:100%}
 .cta-actions .btn-gold,.cta-actions .btn-line{flex:1 1 auto}
 .footer-top{grid-template-columns:1fr;gap:28px}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
 .bp-figure img{height:250px}
}
@media (max-width:520px){
 .tier-grid{grid-template-columns:1fr}
 .brand-name{font-size:15px}
 .brand-sub{font-size:10px;letter-spacing:1px}
 .cat-hero h1{font-size:25px}
 .sec-title{font-size:21px}
 .hero-tags span{font-size:12px;padding:6px 12px}
 .bp-list li{padding:16px}
 .faq-item summary{font-size:15px;padding:16px 48px 16px 18px}
}

/* roulang page: category2 */
:root{
 --navy:#1a1f3d;
 --navy-deep:#101430;
 --navy-soft:#232a52;
 --navy-line:#2f3765;
 --gold:#ffb400;
 --gold-light:#ffd45e;
 --gold-deep:#e09a00;
 --cyan:#35d6d0;
 --bg:#f5f6fb;
 --bg-alt:#ffffff;
 --text:#1b2036;
 --muted:#6b7391;
 --muted-2:#8b93ad;
 --line:#e3e6f1;
 --radius:12px;
 --radius-lg:18px;
 --radius-pill:999px;
 --shadow-sm:0 2px 10px rgba(26,31,61,.06);
 --shadow-md:0 14px 34px rgba(26,31,61,.10);
 --shadow-gold:0 10px 26px rgba(255,180,0,.30);
 --container:1180px;
 --t:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--gold-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:800;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{
 width:100%;
 max-width:var(--container);
 margin:0 auto;
 padding-left:20px;
 padding-right:20px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;
 top:0;
 z-index:60;
 background:rgba(16,20,48,.96);
 border-bottom:1px solid rgba(255,255,255,.07);
 backdrop-filter:blur(10px);
 box-shadow:0 6px 24px rgba(10,13,32,.28);
}
.site-nav{
 display:flex;
 align-items:center;
 gap:28px;
 min-height:72px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:40px;height:40px;
 border-radius:11px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 45%,#e08a00);
 display:grid;place-items:center;
 font-weight:800;font-size:17px;color:#241a00;
 box-shadow:var(--shadow-gold);
 letter-spacing:-.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:.3px}
.brand-sub{font-size:11px;color:var(--gold-light);letter-spacing:1.6px;text-transform:uppercase;opacity:.9}
.nav-toggle{
 display:none;
 margin-left:auto;
 width:56px;height:38px;
 border-radius:10px;
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.06);
 color:#fff;
 font-size:13px;
 letter-spacing:1px;
}
.nav-body{display:flex;align-items:center;justify-content:space-between;flex:1;gap:20px}
.nav-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-list a{
 display:block;
 padding:9px 14px;
 border-radius:var(--radius-pill);
 font-size:14.5px;
 color:rgba(255,255,255,.76);
 font-weight:500;
 transition:background var(--t),color var(--t);
}
.nav-list a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-list a.active{
 color:var(--navy-deep);
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 font-weight:700;
 box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line,.btn-gold{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:10px 20px;border-radius:var(--radius-pill);
 font-size:14.5px;font-weight:700;
 border:1px solid transparent;cursor:pointer;
 transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
 white-space:nowrap;
}
.btn-line{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.04)}
.btn-line:hover{border-color:var(--gold);color:var(--gold-light);transform:translateY(-1px)}
.btn-gold{
 color:#241a00;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 55%,var(--gold-deep));
 box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);color:#1a1200}
.btn-gold:active,.btn-line:active{transform:translateY(0)}
.btn-gold:focus-visible,.btn-line:focus-visible,.nav-list a:focus-visible,a:focus-visible{
 outline:2px solid var(--gold);outline-offset:3px
}
/* ---------- hero ---------- */
.page-hero{
 position:relative;
 overflow:hidden;
 background:
  radial-gradient(900px 520px at 10% -12%,rgba(53,214,208,.18),transparent 62%),
  radial-gradient(760px 480px at 92% 6%,rgba(255,180,0,.20),transparent 60%),
  linear-gradient(160deg,#151a38 0%,#1a1f3d 52%,#0f1330 100%);
 color:#fff;
 padding:58px 0 62px;
}
.page-hero .hero-photo{
 position:absolute;inset:0;width:100%;height:100%;
 object-fit:cover;opacity:.18;mix-blend-mode:luminosity;
}
.page-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:linear-gradient(180deg,rgba(16,20,48,.30) 0%,rgba(16,20,48,.88) 76%,#0f1330 100%);
}
.hero-inner{
 position:relative;z-index:2;
 display:grid;grid-template-columns:1.32fr .88fr;gap:46px;align-items:start;
}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:var(--radius-pill);
 background:rgba(255,180,0,.14);
 border:1px solid rgba(255,180,0,.34);
 color:var(--gold-light);
 font-size:12.5px;letter-spacing:1.2px;font-weight:600;
}
.breadcrumb-line{
 margin-bottom:18px;
 font-size:13px;color:rgba(255,255,255,.55);
 display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.breadcrumb-line a{color:rgba(255,255,255,.72)}
.breadcrumb-line a:hover{color:var(--gold-light)}
.page-hero h1{
 margin-top:18px;
 font-size:clamp(27px,3.3vw,42px);
 line-height:1.28;
 font-weight:800;
 letter-spacing:-.4px;
}
.page-hero h1 em{font-style:normal;color:var(--gold);text-shadow:0 6px 26px rgba(255,180,0,.35)}
.hero-lead{
 margin-top:20px;max-width:620px;
 color:rgba(255,255,255,.80);
 font-size:15.5px;line-height:1.95;
}
.hero-actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.hero-tags{margin-top:26px;display:flex;gap:8px;flex-wrap:wrap}
.tag-chip{
 padding:6px 13px;border-radius:var(--radius-pill);
 font-size:12.5px;color:rgba(255,255,255,.78);
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.13);
}
.hero-panel{
 background:rgba(255,255,255,.055);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-lg);
 padding:22px;
 backdrop-filter:blur(6px);
 box-shadow:0 22px 48px rgba(6,9,26,.42);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.panel-tag{
 font-size:11.5px;letter-spacing:1.4px;
 color:var(--gold-light);
 border:1px solid rgba(255,180,0,.35);
 background:rgba(255,180,0,.12);
 padding:3px 10px;border-radius:var(--radius-pill);
}
.panel-head h2{font-size:15px;color:#fff;font-weight:700}
.panel-stats{display:grid;grid-template-columns:1fr;gap:10px}
.panel-stats li{
 display:flex;align-items:baseline;justify-content:space-between;gap:14px;
 padding:11px 14px;border-radius:10px;
 background:rgba(255,255,255,.05);
 border:1px solid rgba(255,255,255,.08);
}
.panel-stats b{font-size:20px;color:var(--gold);font-weight:800;letter-spacing:-.5px}
.panel-stats span{font-size:12.5px;color:rgba(255,255,255,.66);text-align:right}
.panel-img{margin-top:16px;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.panel-img img{width:100%;height:150px;object-fit:cover;opacity:.92}
/* ---------- sections ---------- */
.section{padding:66px 0}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.dark{
 background:linear-gradient(150deg,#171c3a 0%,#101430 100%);
 color:#fff;
}
.kicker{
 display:inline-block;
 font-size:12.5px;font-weight:700;letter-spacing:1.6px;
 color:var(--gold-deep);
 margin-bottom:12px;
}
.section.dark .kicker{color:var(--gold-light)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(22px,2.5vw,31px);color:#12172e}
.section.dark .section-head h2{color:#fff}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.9}
.section.dark .section-head p{color:rgba(255,255,255,.72)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
/* cards */
.trick-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
 height:100%;
}
.trick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.45)}
.trick-num{
 display:inline-grid;place-items:center;
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(135deg,rgba(255,180,0,.20),rgba(255,180,0,.08));
 color:var(--gold-deep);font-weight:800;font-size:14px;
 margin-bottom:14px;
}
.trick-card h3{font-size:16.5px;color:#151a33;margin-bottom:10px}
.trick-card p{font-size:14px;color:var(--muted);line-height:1.85}
/* steps */
.step-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step-card{
 position:relative;
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:26px 22px 22px;
 box-shadow:var(--shadow-sm);
}
.step-card .step-idx{
 font-size:34px;font-weight:800;letter-spacing:-1.5px;
 color:rgba(26,31,61,.12);line-height:1;
}
.step-card h3{font-size:17px;color:#151a33;margin:8px 0 10px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.85}
.step-card .step-meta{
 display:inline-block;margin-top:14px;
 font-size:12px;font-weight:700;color:var(--gold-deep);
 background:rgba(255,180,0,.12);
 border-radius:var(--radius-pill);
 padding:4px 12px;
}
/* split feature */
.split{display:grid;grid-template-columns:1.02fr 1fr;gap:40px;align-items:center}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line);position:relative}
.split-media img{width:100%;height:100%;min-height:320px;object-fit:cover}
.split-media .media-badge{
 position:absolute;left:16px;bottom:16px;
 background:rgba(16,20,48,.86);
 color:var(--gold-light);
 font-size:12.5px;font-weight:700;
 padding:6px 13px;border-radius:var(--radius-pill);
 border:1px solid rgba(255,180,0,.35);
}
.split-text h2{font-size:clamp(21px,2.3vw,28px);color:#12172e;margin-bottom:16px}
.split-text p{color:var(--muted);font-size:15px;line-height:1.95;margin-bottom:14px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{
 position:relative;padding-left:28px;
 font-size:14.5px;color:#2a3050;line-height:1.8;
}
.check-list li::before{
 content:"";
 position:absolute;left:0;top:8px;
 width:14px;height:14px;border-radius:4px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 3px 8px rgba(255,180,0,.35);
}
/* compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);
}
.compare-col.bad{border-top:4px solid #d8dcea}
.compare-col.good{border-top:4px solid var(--gold)}
.compare-col h3{font-size:16px;margin-bottom:16px;color:#151a33}
.compare-col.bad h3{color:#565f80}
.compare-col ul{display:grid;gap:14px}
.compare-col li{font-size:14.2px;color:var(--muted);line-height:1.8;padding-left:18px;position:relative}
.compare-col li::before{
 content:"";position:absolute;left:0;top:10px;
 width:7px;height:7px;border-radius:50%;
 background:var(--muted-2);
}
.compare-col.good li::before{background:var(--gold)}
.compare-col li b{color:#1b2036}
/* scene cards */
.scene-card{
 background:rgba(255,255,255,.055);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius);padding:24px 22px;height:100%;
 transition:transform var(--t),border-color var(--t),background var(--t);
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.55);background:rgba(255,255,255,.08)}
.scene-card h3{font-size:16.5px;color:#fff;margin-bottom:10px}
.scene-card p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.85}
.scene-card .scene-tag{
 display:inline-block;margin-top:14px;font-size:12px;
 color:var(--cyan);border:1px solid rgba(53,214,208,.38);
 padding:3px 11px;border-radius:var(--radius-pill);
}
/* review */
.review-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:start}
.review-list{display:grid;gap:14px}
.review-list li{
 display:flex;gap:16px;align-items:flex-start;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:16px 18px;box-shadow:var(--shadow-sm);
 transition:border-color var(--t),box-shadow var(--t);
}
.review-list li:hover{border-color:rgba(255,180,0,.5);box-shadow:var(--shadow-md)}
.review-list .rv-idx{
 flex-shrink:0;width:30px;height:30px;border-radius:9px;
 display:grid;place-items:center;
 background:rgba(26,31,61,.06);color:var(--navy);
 font-size:13px;font-weight:800;
}
.review-list strong{display:block;font-size:14.5px;color:#1b2036;margin-bottom:4px}
.review-list span{font-size:13.5px;color:var(--muted);line-height:1.75}
.review-side{
 background:linear-gradient(150deg,#1a1f3d,#101430);
 border-radius:var(--radius-lg);
 padding:26px 24px;color:#fff;
 box-shadow:var(--shadow-md);
}
.review-side h3{font-size:16px;color:#fff;margin-bottom:18px}
.mini-stats{display:grid;gap:12px}
.mini-stats li{
 display:flex;justify-content:space-between;align-items:center;
 border-bottom:1px dashed rgba(255,255,255,.14);
 padding-bottom:11px;font-size:13.5px;color:rgba(255,255,255,.72);
}
.mini-stats li:last-child{border-bottom:0;padding-bottom:0}
.mini-stats b{color:var(--gold);font-size:17px;font-weight:800}
.review-side .side-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.6);line-height:1.8}
/* faq */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;
 transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:rgba(255,180,0,.5);box-shadow:var(--shadow-md)}
.faq-item summary{
 cursor:pointer;list-style:none;
 padding:18px 22px;
 font-size:15.5px;font-weight:700;color:#151a33;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";flex-shrink:0;
 width:26px;height:26px;border-radius:50%;
 display:grid;place-items:center;
 background:rgba(255,180,0,.14);color:var(--gold-deep);
 font-size:16px;font-weight:700;
 transition:transform var(--t),background var(--t);
}
.faq-item[open] summary::after{content:"−";background:rgba(255,180,0,.24);transform:rotate(180deg)}
.faq-item summary:hover{color:var(--gold-deep)}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.95}
/* cta */
.cta-band{
 background:linear-gradient(135deg,#1a1f3d 0%,#232a52 55%,#101430 100%);
 border-radius:var(--radius-lg);
 padding:44px 40px;
 color:#fff;
 display:grid;grid-template-columns:1.4fr .8fr;
 gap:32px;align-items:center;
 box-shadow:0 26px 60px rgba(16,20,48,.28);
 position:relative;overflow:hidden;
}
.cta-band::before{
 content:"";position:absolute;right:-70px;top:-70px;
 width:260px;height:260px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,180,0,.30),transparent 66%);
}
.cta-band h2{font-size:clamp(21px,2.3vw,28px);color:#fff;margin-bottom:12px;position:relative}
.cta-band p{font-size:14.8px;color:rgba(255,255,255,.76);line-height:1.9;position:relative;max-width:600px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;position:relative}
/* footer */
.site-footer{
 background:#0d1130;
 color:rgba(255,255,255,.72);
 padding:56px 0 26px;
 border-top:1px solid rgba(255,255,255,.07);
}
.footer-top{
 display:grid;grid-template-columns:1.6fr .7fr .8fr;gap:40px;
 padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand p{margin-top:16px;font-size:13.8px;line-height:1.9;color:rgba(255,255,255,.58);max-width:420px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:13.8px;color:rgba(255,255,255,.62)}
.footer-col a:hover{color:var(--gold-light)}
.footer-bottom{
 padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:12.8px;color:rgba(255,255,255,.46);
}
.footer-bottom .dom{color:rgba(255,255,255,.36);letter-spacing:.4px}
/* responsive */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:34px}
 .hero-panel{max-width:560px}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .step-list{grid-template-columns:1fr;gap:18px}
 .split{grid-template-columns:1fr;gap:28px}
 .split-media img{min-height:260px}
 .review-wrap{grid-template-columns:1fr;gap:26px}
 .cta-band{grid-template-columns:1fr;padding:34px 26px}
 .cta-actions{justify-content:flex-start}
 .footer-top{grid-template-columns:1fr 1fr;gap:30px}
 .footer-brand{grid-column:1 / -1}
}
@media (max-width:860px){
 .site-nav{flex-wrap:wrap;min-height:auto;padding:10px 0;gap:14px}
 .brand{order:1}
 .nav-toggle{display:inline-flex;align-items:center;justify-content:center;order:2}
 .nav-body{order:3;flex-basis:100%;flex-direction:column;align-items:stretch;gap:14px;padding:8px 0 14px}
 .nav-list{flex-direction:column;align-items:stretch;gap:4px;width:100%}
 .nav-list a{padding:11px 14px;border-radius:10px;background:rgba(255,255,255,.04)}
 .nav-cta{width:100%;flex-wrap:wrap}
 .nav-cta .btn-line,.nav-cta .btn-gold{flex:1 1 140px}
}
@media (max-width:768px){
 .section{padding:48px 0}
 .page-hero{padding:42px 0 48px}
 .grid-2,.grid-3,.compare{grid-template-columns:1fr}
 .grid-4{grid-template-columns:1fr}
 .hero-lead{font-size:14.8px}
 .section-head{margin-bottom:28px}
 .footer-top{grid-template-columns:1fr}
}
@media (max-width:520px){
 .container{padding-left:16px;padding-right:16px}
 .page-hero h1{font-size:25px}
 .hero-actions .btn-gold,.hero-actions .btn-line{width:100%}
 .cta-band{padding:28px 20px}
 .faq-item summary{padding:15px 16px;font-size:14.5px}
 .faq-body{padding:0 16px 18px}
 .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category3 */
:root{
 --navy:#1a1f3d;
 --navy-deep:#101430;
 --navy-soft:#232a52;
 --navy-line:#2f3765;
 --gold:#ffb400;
 --gold-light:#ffd45e;
 --gold-deep:#e09a00;
 --cyan:#35d6d0;
 --bg:#f5f6fb;
 --bg-alt:#ffffff;
 --text:#1b2036;
 --muted:#6b7391;
 --muted-2:#8b93ad;
 --line:#e3e6f1;
 --radius:12px;
 --radius-lg:18px;
 --radius-pill:999px;
 --shadow-sm:0 2px 10px rgba(26,31,61,.06);
 --shadow-md:0 14px 34px rgba(26,31,61,.10);
 --shadow-gold:0 10px 26px rgba(255,180,0,.30);
 --container:1180px;
 --t:.22s ease;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--gold-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.2px;color:var(--navy)}
p{margin:0}
ul{margin:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.container{
 width:100%;
 max-width:var(--container);
 margin:0 auto;
 padding-left:20px;
 padding-right:20px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;
 top:0;
 z-index:60;
 background:rgba(16,20,48,.96);
 border-bottom:1px solid rgba(255,255,255,.07);
 backdrop-filter:blur(10px);
 box-shadow:0 6px 24px rgba(10,13,32,.28);
}
.site-nav{
 display:flex;
 align-items:center;
 gap:28px;
 min-height:72px;
}
.brand{
 display:flex;
 align-items:center;
 gap:11px;
 flex-shrink:0;
}
.brand-mark{
 width:40px;height:40px;
 border-radius:11px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 45%,#e08a00);
 display:grid;
 place-items:center;
 font-weight:800;
 font-size:17px;
 color:#241a00;
 box-shadow:var(--shadow-gold);
 letter-spacing:-.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:.3px}
.brand-sub{font-size:11px;color:var(--gold-light);letter-spacing:1.6px;text-transform:uppercase;opacity:.9}
.nav-toggle{
 display:none;
 margin-left:auto;
 width:auto;
 padding:0 16px;
 height:38px;
 border-radius:10px;
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.06);
 color:#fff;
 font-size:13px;
 letter-spacing:1px;
}
.nav-body{display:flex;align-items:center;justify-content:space-between;flex:1;gap:20px}
.nav-list{
 display:flex;
 align-items:center;
 gap:6px;
 flex-wrap:wrap;
 list-style:none;
 margin:0;
 padding:0;
}
.nav-list a{
 display:block;
 padding:9px 14px;
 border-radius:var(--radius-pill);
 font-size:14.5px;
 color:rgba(255,255,255,.76);
 font-weight:500;
 transition:background var(--t),color var(--t);
}
.nav-list a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-list a.active{
 color:var(--navy-deep);
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 font-weight:700;
 box-shadow:0 6px 16px rgba(255,180,0,.28);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-line,.btn-gold{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 padding:10px 20px;
 border-radius:var(--radius-pill);
 font-size:14.5px;
 font-weight:700;
 border:1px solid transparent;
 cursor:pointer;
 transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
 white-space:nowrap;
}
.btn-line{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.04)}
.btn-line:hover{border-color:var(--gold);color:var(--gold-light);transform:translateY(-1px)}
.btn-gold{
 color:#241a00;
 background:linear-gradient(135deg,var(--gold-light),var(--gold) 55%,var(--gold-deep));
 box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,180,0,.42);color:#1a1200}
.btn-gold:active,.btn-line:active{transform:translateY(0)}
/* ---------- category hero ---------- */
.cat-hero{
 position:relative;
 overflow:hidden;
 background:radial-gradient(880px 500px at 10% -12%,rgba(53,214,208,.18),transparent 62%),
            radial-gradient(760px 470px at 92% 6%,rgba(255,180,0,.20),transparent 60%),
            linear-gradient(160deg,#151a38 0%,#1a1f3d 52%,#0f1330 100%);
 color:#fff;
 padding:40px 0 54px;
}
.cat-hero-photo{
 position:absolute;
 inset:0;
 width:100%;height:100%;
 object-fit:cover;
 opacity:.18;
 mix-blend-mode:luminosity;
}
.cat-hero::after{
 content:"";
 position:absolute;
 inset:0;
 background:linear-gradient(180deg,rgba(16,20,48,.42) 0%,rgba(16,20,48,.86) 76%,#0f1330 100%);
 pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2}
.crumb{
 display:flex;
 align-items:center;
 gap:9px;
 font-size:13px;
 color:rgba(255,255,255,.62);
 margin-bottom:26px;
 flex-wrap:wrap;
}
.crumb a:hover{color:var(--gold-light)}
.crumb span[aria-current]{color:var(--gold-light)}
.eyebrow{
 display:inline-flex;
 align-items:center;
 gap:8px;
 padding:6px 14px;
 border-radius:var(--radius-pill);
 background:rgba(255,180,0,.14);
 border:1px solid rgba(255,180,0,.34);
 color:var(--gold-light);
 font-size:12.5px;
 letter-spacing:1.2px;
 font-weight:600;
}
.cat-hero h1{
 margin-top:20px;
 font-size:clamp(27px,3.4vw,44px);
 line-height:1.28;
 color:#fff;
 max-width:19em;
}
.cat-hero h1 em{font-style:normal;color:var(--gold);text-shadow:0 6px 26px rgba(255,180,0,.35)}
.cat-lead{
 margin-top:20px;
 max-width:720px;
 color:rgba(255,255,255,.80);
 font-size:15.5px;
 line-height:1.95;
}
.cat-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.cat-stats{
 list-style:none;
 display:grid;
 grid-template-columns:repeat(4,1fr);
 gap:14px;
 margin-top:34px;
 padding:0;
 max-width:760px;
}
.cat-stats li{
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.10);
 border-radius:var(--radius);
 padding:14px 12px;
 text-align:center;
}
.cat-stats b{
 display:block;
 font-size:21px;
 color:var(--gold);
 font-weight:800;
 letter-spacing:-.3px;
}
.cat-stats span{display:block;font-size:12.5px;color:rgba(255,255,255,.62);margin-top:2px}
/* ---------- section base ---------- */
.sec{padding:72px 0}
.sec-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:38px}
.tag{
 display:inline-block;
 padding:5px 13px;
 border-radius:var(--radius-pill);
 background:rgba(255,180,0,.14);
 border:1px solid rgba(255,180,0,.35);
 color:#9a6700;
 font-size:12.5px;
 font-weight:700;
 letter-spacing:.8px;
}
.sec-head h2{margin:14px 0 12px;font-size:clamp(22px,2.4vw,32px);line-height:1.35}
.sec-head p{color:var(--muted);font-size:15.5px;line-height:1.9}
/* ---------- timeline ---------- */
.timeline{display:grid;gap:18px}
.tl-item{
 display:grid;
 grid-template-columns:104px 1fr;
 gap:24px;
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:26px 28px;
 box-shadow:var(--shadow-sm);
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.55)}
.tl-badge{
 align-self:flex-start;
 display:inline-flex;
 align-items:center;
 justify-content:center;
 padding:8px 12px;
 border-radius:10px;
 background:linear-gradient(135deg,var(--navy-soft),var(--navy));
 color:var(--gold-light);
 font-weight:800;
 font-size:14px;
 letter-spacing:.6px;
 border:1px solid var(--navy-line);
}
.tl-item h3{font-size:18.5px;margin-bottom:8px}
.tl-item p{color:var(--muted);font-size:14.8px;line-height:1.9}
.tl-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:7px}
.tl-list li{
 position:relative;
 padding-left:18px;
 font-size:14px;
 color:var(--text);
 line-height:1.8;
}
.tl-list li::before{
 content:"";
 position:absolute;
 left:0;top:.7em;
 width:7px;height:7px;
 border-radius:50%;
 background:var(--gold);
 box-shadow:0 0 0 3px rgba(255,180,0,.16);
}
/* ---------- impact grid ---------- */
.impact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.impact-card{
 background:linear-gradient(160deg,var(--navy-soft),var(--navy) 70%,var(--navy-deep));
 color:rgba(255,255,255,.78);
 border:1px solid var(--navy-line);
 border-radius:var(--radius-lg);
 padding:26px 22px;
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.impact-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(16,20,48,.28);border-color:rgba(255,180,0,.5)}
.impact-card b{display:block;font-size:29px;font-weight:800;color:var(--gold);letter-spacing:-.5px}
.impact-card strong{display:block;margin-top:8px;font-size:15px;color:#fff;font-weight:700}
.impact-card span{display:block;margin-top:10px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62)}
/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.split-media{position:relative}
.split-media img{border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media .media-tip{
 position:absolute;
 left:18px;bottom:18px;
 background:rgba(16,20,48,.86);
 color:var(--gold-light);
 font-size:12.5px;
 letter-spacing:.6px;
 padding:7px 14px;
 border-radius:var(--radius-pill);
 border:1px solid rgba(255,180,0,.4);
 backdrop-filter:blur(6px);
}
.split-body h2{font-size:clamp(21px,2.3vw,30px);line-height:1.36;margin-bottom:16px}
.split-body p{color:var(--muted);font-size:15.3px;line-height:1.95}
.feature-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:14px}
.feature-list li{
 display:grid;
 grid-template-columns:34px 1fr;
 gap:13px;
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:14px 16px;
 box-shadow:var(--shadow-sm);
 transition:border-color var(--t),transform var(--t);
}
.feature-list li:hover{border-color:rgba(255,180,0,.55);transform:translateX(3px)}
.feature-list i{
 display:grid;
 place-items:center;
 width:34px;height:34px;
 border-radius:10px;
 background:rgba(255,180,0,.14);
 color:var(--gold-deep);
 font-style:normal;
 font-weight:800;
 font-size:14px;
}
.feature-list strong{display:block;font-size:15px;color:var(--navy)}
.feature-list span{display:block;font-size:13.6px;color:var(--muted);line-height:1.8;margin-top:2px}
/* ---------- observation cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.obs-card{
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 overflow:hidden;
 box-shadow:var(--shadow-sm);
 display:flex;
 flex-direction:column;
 transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.obs-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.5)}
.obs-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.obs-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.obs-body .chip{
 align-self:flex-start;
 padding:3px 11px;
 border-radius:var(--radius-pill);
 background:rgba(53,214,208,.14);
 color:#0f8c88;
 font-size:12px;
 font-weight:700;
 letter-spacing:.5px;
}
.obs-body h3{font-size:16.5px;line-height:1.55}
.obs-body p{font-size:14.2px;color:var(--muted);line-height:1.85}
.obs-body .meta{margin-top:auto;font-size:12.5px;color:var(--muted-2);letter-spacing:.4px}
/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:880px}
.faq details{
 background:var(--bg-alt);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 overflow:hidden;
 transition:border-color var(--t),box-shadow var(--t);
}
.faq details:hover{border-color:rgba(255,180,0,.5)}
.faq details[open]{box-shadow:var(--shadow-md);border-color:rgba(255,180,0,.55)}
.faq summary{
 cursor:pointer;
 padding:17px 22px;
 font-weight:700;
 font-size:15.5px;
 color:var(--navy);
 list-style:none;
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";
 font-size:20px;
 font-weight:700;
 color:var(--gold-deep);
 line-height:1;
 transition:transform var(--t);
}
.faq details[open] summary::after{content:"−"}
.faq .ans{padding:14px 22px 20px;color:var(--muted);font-size:14.6px;line-height:1.95;border-top:1px solid var(--line)}
/* ---------- cta band ---------- */
.cta-band{
 position:relative;
 overflow:hidden;
 background:radial-gradient(600px 300px at 88% -20%,rgba(255,180,0,.22),transparent 65%),
            linear-gradient(135deg,#151a38,#1a1f3d 55%,#101430);
 color:#fff;
 border-radius:var(--radius-lg);
 padding:44px 46px;
 display:grid;
 grid-template-columns:1.05fr .95fr;
 gap:38px;
 align-items:center;
 box-shadow:var(--shadow-md);
 border:1px solid var(--navy-line);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.2vw,28px);line-height:1.4}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.72);font-size:14.8px;line-height:1.95}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{
 flex:1 1 200px;
 min-width:0;
 padding:12px 18px;
 border-radius:var(--radius-pill);
 border:1px solid rgba(255,255,255,.22);
 background:rgba(255,255,255,.08);
 color:#fff;
 font-size:14.5px;
}
.sub-form input::placeholder{color:rgba(255,255,255,.5)}
.sub-form input:focus{outline:none;border-color:var(--gold);background:rgba(255,255,255,.13)}
.form-msg{display:none;margin-top:10px;font-size:13px;color:var(--gold-light)}
.form-msg.is-on{display:block}
.form-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.5)}
/* ---------- footer ---------- */
.site-footer{
 background:var(--navy-deep);
 color:rgba(255,255,255,.72);
 padding:56px 0 0;
 border-top:1px solid rgba(255,255,255,.08);
}
.footer-top{
 display:grid;
 grid-template-columns:1.5fr .6fr .85fr;
 gap:38px;
 padding-bottom:36px;
 border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.95;color:rgba(255,255,255,.58);max-width:34em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.4px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
 display:flex;
 justify-content:space-between;
 align-items:center;
 gap:14px;
 flex-wrap:wrap;
 padding:22px 0 26px;
 font-size:13px;
 color:rgba(255,255,255,.45);
}
.footer-bottom .dom{letter-spacing:.4px}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .cat-hero{padding:32px 0 46px}
 .cat-stats{grid-template-columns:repeat(2,1fr)}
 .sec{padding:58px 0}
 .impact-grid{grid-template-columns:repeat(2,1fr)}
 .card-grid{grid-template-columns:repeat(2,1fr)}
 .split{grid-template-columns:1fr;gap:30px}
 .cta-band{grid-template-columns:1fr;padding:34px;gap:26px}
 .footer-top{grid-template-columns:1fr 1fr;gap:30px}
 .footer-brand{grid-column:1/-1}
}
@media (max-width:860px){
 .site-nav{flex-wrap:wrap;min-height:64px;padding:10px 0;gap:0}
 .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
 .nav-body{flex-basis:100%;flex-direction:column;align-items:stretch;gap:14px;padding-top:14px}
 .nav-list{flex-direction:column;align-items:stretch;gap:4px}
 .nav-list a{padding:11px 14px}
 .nav-cta{justify-content:flex-start;padding-bottom:15px}
 .brand-name{font-size:16px}
}
@media (max-width:768px){
 .tl-item{grid-template-columns:1fr;gap:14px;padding:22px}
 .card-grid{grid-template-columns:1fr}
 .cat-lead{font-size:14.8px}
 .sec-head h2{font-size:22px}
}
@media (max-width:520px){
 .cat-stats{grid-template-columns:1fr 1fr;gap:10px}
 .cat-stats b{font-size:18px}
 .impact-grid{grid-template-columns:1fr}
 .sec{padding:46px 0}
 .container{padding-left:16px;padding-right:16px}
 .cat-actions .btn-gold,.cat-actions .btn-line{width:100%}
 .cta-band{padding:26px 20px;border-radius:var(--radius)}
 .footer-top{grid-template-columns:1fr}
 .footer-brand{grid-column:auto}
 .footer-bottom{font-size:12.5px}
 .obs-body{padding:18px 18px 22px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}