/* roulang page: index */
:root{
  --mint:#23E0A0;
  --mint-soft:rgba(35,224,160,.12);
  --amber:#FFB13C;
  --amber-soft:rgba(255,177,60,.12);
  --violet:#6C5BFF;
  --bg:#05080E;
  --bg-2:#0A1018;
  --card:rgba(18,28,44,.55);
  --card-solid:#0C1420;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8EEF7;
  --text-2:#9AA9BE;
  --text-3:#64718A;
  --danger:#FF5C6C;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --shadow-1:0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 16px 40px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(35,224,160,.5), 0 8px 28px rgba(35,224,160,.22);
  --glow-hover:0 0 0 1px rgba(35,224,160,.7), 0 8px 36px rgba(35,224,160,.34);
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:Inter,"PingFang SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
.page-body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
::selection{background:rgba(35,224,160,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(5,8,14,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:30px;
  height:72px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:26px;height:26px;
  border:2px solid var(--mint);
  border-radius:9px 3px 9px 3px;
  transform:rotate(45deg);
  box-shadow:0 0 16px rgba(35,224,160,.45);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:5px;
  background:var(--mint);opacity:.55;border-radius:3px;
}
.logo-text{
  font-size:20px;font-weight:800;letter-spacing:-.02em;color:#fff;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:26px;margin-right:auto}
.nav-link{
  position:relative;
  font-size:16px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  transition:color .18s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-2px;
  height:2px;border-radius:2px;
  background:var(--mint);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--mint)}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px}

.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:8px 12px;border-radius:999px;
  border:1px solid transparent;
  transition:all .18s ease;
  cursor:pointer;
}
.mega-trigger::after{content:"▾";font-size:11px;transition:transform .18s ease}
.mega-wrap:hover .mega-trigger,
.mega-wrap:focus-within .mega-trigger{
  color:#fff;border-color:var(--line-strong);background:rgba(255,255,255,.04);
}
.mega-wrap:hover .mega-trigger::after,
.mega-wrap:focus-within .mega-trigger::after{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:640px;
  display:grid;grid-template-columns:1fr 1fr;
  gap:22px;
  padding:22px;
  background:rgba(10,16,24,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .15s ease,transform .15s ease,visibility .15s;
  pointer-events:none;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;
}
.mega-col-title{
  font-size:12px;letter-spacing:.12em;color:var(--text-3);
  text-transform:uppercase;margin-bottom:10px;font-weight:600;
}
.mega-list li{margin-bottom:2px}
.mega-list a{
  display:block;padding:7px 10px;border-radius:9px;
  font-size:14.5px;color:var(--text-2);
  transition:all .16s ease;
}
.mega-list a:hover{background:rgba(35,224,160,.08);color:var(--mint);transform:translateX(2px)}
.mega-entry{
  grid-column:1 / -1;
  display:flex;align-items:center;gap:14px;
  padding:12px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  transition:border-color .18s ease;
}
.mega-entry:hover{border-color:rgba(35,224,160,.45)}
.mega-entry img{width:88px;height:56px;object-fit:cover;border-radius:9px}
.mega-entry strong{display:block;font-size:14.5px;color:#fff;font-weight:600}
.mega-entry span{font-size:12.5px;color:var(--text-3)}

.nav-toggle{display:none}
.burger{
  display:none;
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;
  flex-direction:column;gap:4px;cursor:pointer;
  background:rgba(255,255,255,.03);
}
.burger span{display:block;width:17px;height:2px;background:var(--text);border-radius:2px}
.mobile-drawer{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;
  padding:13px 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:all .18s ease;
  white-space:nowrap;
  line-height:1.2;
}
.btn-primary{
  background:var(--mint);color:#04120C;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  filter:brightness(1.08);
  box-shadow:var(--glow-hover);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.3)}
.btn-ghost{
  background:transparent;color:var(--text);
  border-color:var(--line-strong);
}
.btn-ghost:hover{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.05);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
label:focus-visible{
  outline:2px solid var(--mint);
  outline-offset:3px;
  box-shadow:0 0 0 4px rgba(35,224,160,.18);
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(5,8,14,.97) 22%,rgba(5,8,14,.72) 56%,rgba(5,8,14,.55) 100%),
    linear-gradient(180deg,rgba(5,8,14,.35) 0%,rgba(5,8,14,.9) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;
  gap:56px;align-items:center;
  padding-top:88px;padding-bottom:88px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.1em;font-weight:600;
  color:var(--mint);
  padding:6px 14px;border-radius:999px;
  background:var(--mint-soft);
  border:1px solid rgba(35,224,160,.3);
  margin-bottom:22px;
}
.hero-title{
  font-size:44px;font-weight:800;line-height:1.15;letter-spacing:-.02em;
  color:#fff;max-width:620px;
}
.hero-sub{
  margin-top:20px;
  font-size:16.5px;color:var(--text-2);line-height:1.85;
  max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  margin-top:34px;
}
.hero-points li{
  position:relative;padding-left:20px;
  font-size:14px;color:var(--text-2);
}
.hero-points li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 10px rgba(35,224,160,.7);
}
.scoreboard{
  background:var(--card);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  align-self:end;
}
.scoreboard-head{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);letter-spacing:.06em;
  padding-bottom:14px;margin-bottom:6px;
  border-bottom:1px solid var(--line);
}
.dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 10px var(--mint);
}
.score-row{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:13px 0;
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.score-row:last-of-type{border-bottom:none}
.score-row span{font-size:14px;color:var(--text-2)}
.score-row strong{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:28px;font-weight:800;color:var(--amber);
  letter-spacing:.02em;line-height:1;
}
.score-note{margin-top:14px;font-size:12px;color:var(--text-3)}

/* ---------- section common ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:48px}
.section-title{
  position:relative;
  font-size:28px;font-weight:700;letter-spacing:-.01em;color:#fff;
  padding-left:20px;line-height:1.35;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.16em;
  width:4px;height:1.1em;border-radius:2px;
  background:linear-gradient(180deg,var(--mint),var(--violet));
}
.section-desc{margin-top:14px;font-size:15.5px;color:var(--text-2);padding-left:20px}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;
}
.link-more{
  font-size:14.5px;font-weight:600;color:var(--mint);
  display:inline-flex;align-items:center;gap:6px;
  transition:gap .18s ease;
  white-space:nowrap;
}
.link-more:hover{gap:10px}

/* ---------- steps ---------- */
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid var(--line);
  padding-top:44px;
  position:relative;
}
.step{position:relative;padding:0 28px 0 0}
.step::after{
  content:"";position:absolute;left:52px;right:16px;top:22px;
  height:1px;
  background:linear-gradient(90deg,rgba(35,224,160,.5),rgba(255,255,255,.08));
}
.step:last-child::after{display:none}
.step-num{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(35,224,160,.45);
  background:rgba(35,224,160,.08);
  color:var(--mint);
  font-family:var(--font-num);
  font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;
  margin-bottom:22px;
  position:relative;z-index:2;
}
.step h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8;max-width:290px}

/* ---------- rewards grid ---------- */
.reward-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:1fr;
  gap:24px;
}
.reward-card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--card-solid);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
  box-shadow:var(--shadow-1);
}
.reward-card:hover{border-color:rgba(35,224,160,.45);box-shadow:var(--shadow-2)}
.reward-card .thumb{overflow:hidden;aspect-ratio:4/3}
.reward-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.reward-card:hover .thumb img{transform:scale(1.03)}
.reward-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.reward-card h3{font-size:17px;font-weight:600;color:#fff;line-height:1.45}
.reward-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.badge{
  position:absolute;top:14px;right:14px;
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:var(--amber-soft);color:var(--amber);
  border:1px solid rgba(255,177,60,.32);
}
.reward-card.featured{
  grid-column:span 2;
  grid-row:span 2;
}
.reward-card.featured .thumb{aspect-ratio:16/9}
.reward-card.featured h3{font-size:22px}
.reward-card.featured p{font-size:14.5px;max-width:420px}
.reward-card.featured .reward-body{padding:26px}

/* ---------- mission panel ---------- */
.mission-panel{
  background:var(--card);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--shadow-1);
}
.mission-top{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;margin-bottom:26px;
}
.mission-top h3{font-size:19px;font-weight:600;color:#fff}
.mission-top span{font-size:13px;color:var(--text-3)}
.progress-track{
  height:8px;border-radius:999px;
  background:rgba(255,255,255,.08);
  display:flex;gap:3px;overflow:hidden;
  margin-bottom:28px;
}
.progress-seg{flex:1;border-radius:999px;background:rgba(255,255,255,.07)}
.progress-seg.filled{
  background:var(--mint);
  box-shadow:0 0 12px rgba(35,224,160,.55);
}
.progress-seg.partial{
  background:linear-gradient(90deg,var(--mint) 55%,rgba(255,255,255,.08) 55%);
}
.mission-rows{border-top:1px solid var(--line)}
.mission-row{
  display:grid;grid-template-columns:1.6fr auto auto;
  gap:16px;align-items:center;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.mission-row:last-child{border-bottom:none}
.mission-name{font-size:15px;color:var(--text);font-weight:500}
.mission-name small{display:block;font-size:12.5px;color:var(--text-3);font-weight:400;margin-top:2px}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:var(--mint-soft);color:var(--mint);
  border:1px solid rgba(35,224,160,.3);
  white-space:nowrap;
}
.tag-amber{background:var(--amber-soft);color:var(--amber);border-color:rgba(255,177,60,.3)}
.tag-muted{background:rgba(255,255,255,.05);color:var(--text-2);border-color:var(--line)}
.mission-value{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;color:var(--amber);
  letter-spacing:.02em;min-width:74px;text-align:right;
}

/* ---------- news (cms) ---------- */
.news-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.news-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--card-solid);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:var(--shadow-1);
}
.news-card:hover{
  border-color:rgba(35,224,160,.4);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.news-card h3{
  font-size:18px;font-weight:600;color:#fff;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card h3 a{transition:color .16s ease}
.news-card h3 a:hover{color:var(--mint)}
.news-card p{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.link-arrow{
  display:inline-flex;align-items:center;gap:5px;
  font-size:13.5px;font-weight:600;color:var(--mint);
  transition:gap .18s ease;
}
.link-arrow:hover{gap:9px}
.empty-state{
  grid-column:1 / -1;
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.empty-state strong{display:block;font-size:16px;color:var(--text);margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:20px}

/* ---------- stats & voices ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:34px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  margin-bottom:56px;
}
.stat-item strong{
  display:block;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.02em;
}
.stat-item strong em{color:var(--mint);font-style:normal;font-size:20px;margin-left:2px}
.stat-item span{display:block;margin-top:8px;font-size:13.5px;color:var(--text-3)}
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.voice-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  position:relative;
}
.voice-card::before{
  content:"“";
  position:absolute;top:8px;left:20px;
  font-size:44px;line-height:1;color:rgba(35,224,160,.25);
  font-family:Georgia,serif;
}
.voice-card p{font-size:14.5px;color:var(--text-2);line-height:1.85;position:relative;z-index:1;margin-bottom:18px}
.voice-user{display:flex;align-items:center;gap:12px}
.avatar{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(108,91,255,.16);
  border:1px solid rgba(108,91,255,.35);
  color:#B9B0FF;font-size:14px;font-weight:700;
}
.voice-user strong{display:block;font-size:14px;color:#fff;font-weight:600}
.voice-user span{font-size:12px;color:var(--text-3)}

/* ---------- faq ---------- */
.faq-list{max-width:860px;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:rgba(35,224,160,.35)}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--text);
  cursor:pointer;
  position:relative;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  width:9px;height:9px;
  border-right:2px solid var(--text-2);
  border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);
  transition:transform .2s ease,border-color .2s ease;
  flex-shrink:0;
  margin-right:4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--mint)}
.faq-item summary:hover{color:var(--mint)}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;
  width:3px;border-radius:2px;background:var(--mint);
}
.faq-answer{padding:0 22px 20px 22px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-section{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.35;
}
.cta-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 120% at 50% 30%,rgba(35,224,160,.14) 0%,rgba(5,8,14,.94) 68%);
}
.cta-inner{
  position:relative;z-index:2;
  max-width:660px;margin:0 auto;text-align:center;
  padding:96px 0;
}
.cta-inner h2{font-size:30px;font-weight:700;color:#fff;letter-spacing:-.01em;line-height:1.35}
.cta-inner p{margin-top:16px;font-size:15.5px;color:var(--text-2);line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.cta-note{margin-top:18px;font-size:12.5px;color:var(--text-3)}

/* ---------- form ---------- */
.join-form{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;
  margin-top:34px;text-align:left;
}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.form-field input,
.form-field select{
  height:46px;
  background:#0B1220;
  border:1px solid rgba(255,255,255,.1);
  border-radius:10px;
  padding:0 14px;
  color:var(--text);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field input::placeholder{color:var(--text-3)}
.form-field input:focus,
.form-field select:focus{
  outline:none;
  border-color:var(--mint);
  box-shadow:0 0 0 4px rgba(35,224,160,.16);
}
.form-hint{grid-column:1 / -1;font-size:12px;color:var(--text-3)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding-top:64px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:320px}
.footer-col h4{
  font-size:13px;font-weight:600;color:var(--text);
  letter-spacing:.08em;margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{
  font-size:14px;color:var(--text-2);
  transition:color .16s ease;
  border-bottom:1px solid transparent;
}
.footer-col a:hover{color:#fff;border-bottom-color:var(--mint)}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.9}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
}
.footer-bottom p{font-size:12.5px;color:var(--text-3)}
.footer-bottom p span{color:var(--text-2)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-title{font-size:40px}
  .reward-grid{grid-template-columns:repeat(3,1fr)}
  .reward-card.featured{grid-column:span 2;grid-row:span 1}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .burger{display:flex}
  .mega-wrap{display:none}
  .nav-right{gap:10px}
  .header-inner{height:64px;gap:16px}
  .logo-text{font-size:18px}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:64px;padding-bottom:64px}
  .hero-title{font-size:36px}
  .scoreboard{align-self:stretch;max-width:520px}
  .section{padding:72px 0}
  .reward-grid{grid-template-columns:repeat(2,1fr)}
  .reward-card.featured{grid-column:span 2;grid-row:span 1}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .voice-grid{grid-template-columns:1fr 1fr}
  .voice-card:last-child{grid-column:1 / -1}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:28px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:1 / -1}
  #navToggle:checked ~ .mobile-drawer{
    display:block;
    position:fixed;
    left:0;right:0;top:64px;bottom:0;
    background:var(--bg);
    border-top:1px solid var(--line);
    padding:22px 24px 40px;
    overflow-y:auto;
    z-index:79;
  }
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:15px 4px;
    font-size:16px;color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.active{color:var(--mint)}
  .drawer-link span{font-size:13px;color:var(--text-3)}
  .drawer-cta{margin-top:24px}
  .drawer-title{
    font-size:12px;letter-spacing:.12em;color:var(--text-3);
    margin:26px 0 8px;
  }
}
@media (max-width:767px){
  .container{padding:0 20px}
  .hero-title{font-size:30px;line-height:1.2}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 auto}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .section-desc{font-size:14.5px}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:14px}
  .steps{grid-template-columns:1fr;gap:34px;padding-top:32px}
  .step{padding-right:0;padding-left:0}
  .step::after{
    left:22px;right:auto;top:52px;bottom:-30px;
    width:1px;height:auto;
    background:linear-gradient(180deg,rgba(35,224,160,.45),rgba(255,255,255,.05));
  }
  .step p{max-width:none}
  .reward-grid{grid-template-columns:1fr}
  .reward-card.featured{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .voice-grid{grid-template-columns:1fr}
  .voice-card:last-child{grid-column:auto}
  .stat-band{grid-template-columns:1fr 1fr;gap:22px;padding:26px 0;margin-bottom:40px}
  .stat-item strong{font-size:27px}
  .mission-panel{padding:22px}
  .mission-row{grid-template-columns:1fr auto;gap:10px 12px}
  .mission-value{grid-column:2;grid-row:1;text-align:right;min-width:0}
  .cta-inner{padding:64px 0}
  .cta-inner h2{font-size:24px}
  .join-form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
  .footer-col:last-child{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .hero-title{font-size:26px}
  .hero-points{gap:8px 18px}
  .hero-points li{font-size:13px}
  .score-row strong{font-size:24px}
  .reward-card.featured h3{font-size:19px}
  .footer-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-sm{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#05080E;
  --bg-alt:#0A1018;
  --surface:rgba(18,28,44,.55);
  --surface-solid:#0B1220;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8EEF7;
  --text-soft:#C9D4E4;
  --muted:#9AA9BE;
  --dim:#64718A;
  --primary:#23E0A0;
  --primary-soft:rgba(35,224,160,.12);
  --amber:#FFB13C;
  --violet:#6C5BFF;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-1:0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 16px 40px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(35,224,160,.5),0 8px 28px rgba(35,224,160,.22);
  --glow-hover:0 0 0 1px rgba(35,224,160,.6),0 10px 36px rgba(35,224,160,.34);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:80px 0}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,14,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:11px;flex:none}
.logo-mark{
  width:20px;height:20px;border:2px solid var(--primary);
  border-radius:5px;transform:rotate(45deg);
  box-shadow:0 0 14px rgba(35,224,160,.4);
  flex:none;
}
.logo-text{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 15px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;
  border-radius:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .18s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link.active:hover{color:var(--primary)}

.mega-wrap{position:relative;margin-left:6px}
.mega-trigger{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:999px;
  background:transparent;border:1px solid var(--line-strong);
  color:var(--text);font-size:14px;font-weight:500;cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{
  border-color:rgba(35,224,160,.5);color:var(--primary);background:rgba(35,224,160,.06);
}
.mega-trigger .caret{
  width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg) translateY(-2px);transition:transform .18s ease;
}
.mega-wrap:hover .caret,.mega-wrap:focus-within .caret{transform:rotate(225deg) translateY(-1px)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:640px;max-width:calc(100vw - 40px);
  display:grid;grid-template-columns:1.1fr 1fr;gap:22px;
  padding:22px;
  background:rgba(10,16,24,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:12px;letter-spacing:.08em;color:var(--dim);font-weight:600;margin-bottom:12px}
.mega-col ul{display:flex;flex-direction:column;gap:2px}
.mega-col li a{
  display:block;padding:8px 10px;border-radius:8px;
  font-size:14px;color:var(--muted);transition:background .16s,color .16s;
}
.mega-col li a:hover{background:rgba(255,255,255,.05);color:#fff}
.mega-feature{
  grid-column:1 / -1;display:flex;gap:14px;align-items:center;
  padding:14px;border-radius:12px;border:1px solid var(--line);
  background:rgba(35,224,160,.05);
  transition:border-color .18s ease,transform .18s ease;
}
.mega-feature:hover{border-color:rgba(35,224,160,.45);transform:translateY(-1px)}
.mega-feature img{width:96px;height:64px;object-fit:cover;border-radius:10px;flex:none}
.mega-feature strong{display:block;font-size:14px;color:#fff;font-weight:600}
.mega-feature span{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:2px}
.mobile-toggle{
  display:none;margin-left:auto;
  width:42px;height:42px;border-radius:10px;
  background:transparent;border:1px solid var(--line-strong);
  cursor:pointer;position:relative;
}
.mobile-toggle span,.mobile-toggle span::before,.mobile-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);transition:transform .2s ease,opacity .2s ease;
}
.mobile-toggle span{top:50%;margin-top:-1px}
.mobile-toggle span::before{content:"";left:0;top:-6px;transform:none;width:18px}
.mobile-toggle span::after{content:"";left:0;top:6px;transform:none;width:18px}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(5,8,14,.98);
  padding:14px 0 22px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .m-link{
  display:block;padding:12px 4px;font-size:16px;color:var(--muted);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .m-link:hover,.mobile-drawer .m-link.active{color:var(--primary)}
.mobile-drawer .m-cta{
  margin-top:18px;display:block;text-align:center;
}
@media (max-width:1023px){
  .main-nav,.mega-wrap{display:none}
  .mobile-toggle{display:block}
}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease,color .16s ease;
}
.btn-primary{background:var(--primary);color:#04170F;box-shadow:var(--glow)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--glow-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.3)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:#fff}
.btn-ghost:hover{border-color:rgba(35,224,160,.5);color:var(--primary);transform:translateY(-1px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(35,224,160,.4);padding-bottom:2px;
}
.btn-link .arrow{transition:transform .16s ease}
.btn-link:hover .arrow{transform:translateX(3px)}

/* ============ article hero ============ */
.article-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(5,8,14,.94) 12%,rgba(5,8,14,.72) 58%,rgba(5,8,14,.95) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.article-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(108,91,255,.55),transparent);
}
.article-hero-inner{padding:44px 0 52px;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:20px}
.breadcrumb a{color:var(--muted);transition:color .16s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--text-soft);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.1em;color:var(--amber);
  text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--amber)}
.article-title{
  font-size:40px;line-height:1.18;font-weight:800;letter-spacing:-.02em;
  color:#fff;margin-bottom:20px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(35,224,160,.12);color:var(--primary);
  border:1px solid rgba(35,224,160,.3);
}
.badge-amber{
  background:rgba(255,177,60,.12);color:var(--amber);
  border-color:rgba(255,177,60,.3);
}
.meta-item{font-size:13px;color:var(--dim);font-variant-numeric:tabular-nums}
.meta-dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.2)}
@media (max-width:767px){
  .article-title{font-size:29px}
  .article-hero-inner{padding:30px 0 38px}
  .breadcrumb .current{max-width:180px}
}

/* ============ article layout ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;align-items:start;padding:64px 0 24px;
}
.article-main{min-width:0}
.article-panel{
  background:var(--surface);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:34px 36px 30px;
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:30px;padding:44px 0 16px}
  .article-panel{padding:26px 22px}
}

/* ============ article body typography ============ */
.article-body{font-size:16px;line-height:1.9;color:var(--text-soft)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:#fff;
  margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;color:#fff;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:#fff;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul li{position:relative;padding-left:4px;margin-bottom:9px}
.article-body ul li::marker{color:var(--primary)}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:9px}
.article-body ol li::marker{color:var(--primary);font-variant-numeric:tabular-nums;font-weight:700}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#5CF0BD}
.article-body strong{color:#fff;font-weight:600}
.article-body img{border-radius:var(--radius-img);margin:10px 0 22px;width:100%;height:auto}
.article-body figure{margin:10px 0 22px}
.article-body figure img{margin-bottom:8px}
.article-body figcaption{font-size:12px;color:var(--dim);line-height:1.7;text-align:center}
.article-body blockquote{
  margin:0 0 22px;padding:16px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;
  background:rgba(35,224,160,.06);
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{
  background:var(--bg-alt);border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;font-size:14px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  color:var(--primary);
}
.article-body pre{
  background:var(--bg-alt);border:1px solid var(--line);
  border-radius:12px;padding:16px 18px;overflow-x:auto;
  margin:0 0 22px;
}
.article-body pre code{background:none;border:none;padding:0;color:var(--text-soft)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:14px}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{color:#fff;font-weight:600;background:rgba(255,255,255,.03)}
.article-body td{color:var(--muted)}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}
.article-body .video-wrap{position:relative;padding-top:56.25%;margin:0 0 22px;border-radius:12px;overflow:hidden}
.article-body .video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

.empty-state{
  text-align:center;padding:64px 24px;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  border:1px solid rgba(35,224,160,.35);
  background:rgba(35,224,160,.08);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:24px;font-weight:800;
}
.empty-state h2{font-size:22px;font-weight:700;color:#fff;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px}

/* ============ sidebar ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:20px;
}
.side-card h3{
  font-size:13px;letter-spacing:.08em;color:var(--dim);
  font-weight:600;margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 10px;border-radius:9px;font-size:14px;color:var(--muted);
  transition:background .16s ease,color .16s ease;
}
.side-nav a::after{content:"→";font-size:13px;color:rgba(255,255,255,.22);transition:transform .16s ease,color .16s ease}
.side-nav a:hover{background:rgba(255,255,255,.05);color:#fff}
.side-nav a:hover::after{transform:translateX(2px);color:var(--primary)}
.side-posts{display:flex;flex-direction:column;gap:14px}
.side-post{display:flex;gap:12px;align-items:flex-start}
.side-post img{width:64px;height:48px;object-fit:cover;border-radius:8px;flex:none}
.side-post span{font-size:13px;line-height:1.6;color:var(--text-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .16s ease}
.side-post:hover span{color:var(--primary)}
.side-actions{display:flex;flex-direction:column;gap:10px}
.side-actions .btn{width:100%;font-size:14px;padding:11px 16px}
@media (max-width:1023px){
  .article-side{position:static;top:auto;display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .side-card.wide{grid-column:1 / -1}
}
@media (max-width:639px){
  .article-side{grid-template-columns:1fr}
}

/* ============ related ============ */
.related{padding:64px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-title{
  position:relative;font-size:26px;line-height:1.35;font-weight:700;color:#fff;
  padding-left:16px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:20px;border-radius:2px;background:var(--primary);
}
.section-sub{font-size:14px;color:var(--muted);margin-top:8px;padding-left:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.related-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.related-card:hover{border-color:rgba(35,224,160,.45);transform:translateY(-3px);box-shadow:var(--shadow-2)}
.related-card .thumb{position:relative;overflow:hidden;aspect-ratio:16/10}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.related-card:hover .thumb img{transform:scale(1.03)}
.related-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,8,14,.7) 100%);
}
.related-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-card h3{font-size:17px;line-height:1.5;font-weight:600;color:#fff}
.related-card p{font-size:13px;line-height:1.75;color:var(--muted);flex:1}
@media (max-width:900px){.related-grid{grid-template-columns:1fr 1fr}}
@media (max-width:639px){.related-grid{grid-template-columns:1fr}}

/* ============ faq ============ */
.faq{padding:72px 0 0}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:14px;overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item[open]{border-color:rgba(35,224,160,.42);background:rgba(18,28,44,.72)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:8px;height:8px;flex:none;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .2s ease,border-color .2s ease;
}
.faq-item[open] summary::after{transform:rotate(225deg);border-color:var(--primary)}
.faq-item[open] summary{color:#fff}
.faq-item .faq-body{
  padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--muted);
  border-left:3px solid var(--primary);margin-left:0;
}

/* ============ cta band ============ */
.cta-band{padding:72px 0}
.cta-inner{
  position:relative;overflow:hidden;text-align:center;
  padding:52px 32px;border-radius:20px;
  border:1px solid rgba(35,224,160,.24);
  background:
    radial-gradient(600px 220px at 50% 0%,rgba(35,224,160,.14),transparent 70%),
    rgba(10,16,24,.9);
}
.cta-inner h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;margin-bottom:12px}
.cta-inner p{font-size:15px;color:var(--muted);max-width:620px;margin:0 auto 26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-note{margin-top:18px;font-size:12px;color:var(--dim)}

/* ============ footer ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-alt);
  margin-top:8px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;padding:60px 0 40px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--muted);max-width:340px}
.footer-col h4{
  font-size:13px;font-weight:600;color:#fff;letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:var(--muted);transition:color .16s ease}
.footer-col li a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--primary);text-underline-offset:4px}
.footer-col p{font-size:13px;line-height:1.8;color:var(--dim)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 26px;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:12.5px;color:var(--dim)}
.footer-bottom span{color:var(--muted)}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:48px 0 32px}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#05080E;
  --bg-alt:#0A1018;
  --card:rgba(18,28,44,.55);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8EEF7;
  --muted:#9AA9BE;
  --dim:#64718A;
  --mint:#23E0A0;
  --amber:#FFB13C;
  --violet:#6C5BFF;
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --shadow-1:0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 16px 40px rgba(0,0,0,.55);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,14,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  position:relative;width:26px;height:26px;border:2px solid var(--mint);border-radius:8px;
  transform:rotate(45deg);box-shadow:0 0 14px rgba(35,224,160,.35);
}
.logo-mark::after{content:"";position:absolute;inset:6px;border-radius:3px;background:var(--mint);opacity:.9}
.logo-text{font-size:20px;font-weight:800;letter-spacing:.01em;line-height:1}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:16px;font-weight:500;color:var(--muted);
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--mint);text-shadow:0 0 18px rgba(35,224,160,.42)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.mega{position:relative;flex-shrink:0}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;
  background:transparent;border:1px solid var(--line-strong);border-radius:999px;
  color:var(--muted);font-size:14px;font-weight:500;cursor:pointer;
  transition:color .18s,border-color .18s,background .18s;
}
.mega-trigger:hover{color:#fff;border-color:rgba(35,224,160,.4);background:rgba(35,224,160,.06)}
.mega-trigger:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
.mega-trigger svg{width:12px;height:12px;transition:transform .18s}
.mega:hover .mega-trigger svg,.mega:focus-within .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:640px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:22px;padding:22px;
  background:rgba(11,18,30,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);border-radius:16px;box-shadow:var(--shadow-1);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);font-weight:600;margin-bottom:10px}
.mega-list{display:grid;gap:4px}
.mega-list a{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:8px 10px;border-radius:8px;font-size:14px;color:var(--muted);
  transition:background .16s,color .16s;
}
.mega-list a span{font-size:12px;color:var(--dim)}
.mega-list a:hover,.mega-list a:focus-visible{background:rgba(35,224,160,.08);color:#fff;outline:none}
.mega-card{
  display:block;margin-top:14px;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);position:relative;
}
.mega-card img{width:100%;height:96px;object-fit:cover;transition:transform .3s}
.mega-card span{
  position:absolute;left:0;bottom:0;right:0;padding:8px 12px;font-size:13px;font-weight:600;
  background:linear-gradient(0deg,rgba(5,8,14,.92),rgba(5,8,14,0));
}
.mega-card:hover img{transform:scale(1.04)}
.nav-toggle{
  display:none;width:42px;height:42px;margin-left:auto;
  background:transparent;border:1px solid var(--line-strong);border-radius:10px;
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;transition:.18s}
.nav-toggle:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.mobile-drawer{
  border-top:1px solid var(--line);background:rgba(7,11,18,.98);
  padding:14px 20px 22px;
}
.mobile-drawer ul{display:grid;gap:2px}
.mobile-drawer a{
  display:block;padding:12px 4px;font-size:16px;color:var(--muted);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-drawer a.active{color:var(--mint)}
.mobile-cta{margin-top:16px;width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:12px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;line-height:1.4;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px;box-shadow:0 0 0 4px rgba(35,224,160,.18)}
.btn-primary{
  background:var(--mint);color:#04120C;
  box-shadow:0 0 0 1px rgba(35,224,160,.5),0 8px 28px rgba(35,224,160,.22);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(35,224,160,.62),0 12px 36px rgba(35,224,160,.36)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.25)}
.btn-ghost{background:transparent;color:#fff;border-color:var(--line-strong)}
.btn-ghost:hover{border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.05);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:rgba(255,255,255,.02)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--mint);
  border-bottom:1px solid rgba(35,224,160,.35);padding-bottom:2px;transition:gap .18s,color .18s;
}
.btn-link:hover{gap:10px;color:#5CF0BD}

/* ---------- hero ---------- */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  padding:64px 0 64px;border-bottom:1px solid var(--line);
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;opacity:.5}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(95deg,rgba(5,8,14,.97) 18%,rgba(5,8,14,.78) 58%,rgba(5,8,14,.94) 100%);
}
.hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--dim);margin-bottom:18px}
.crumbs a{color:var(--muted);transition:color .16s}
.crumbs a:hover{color:var(--mint)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:rgba(255,255,255,.2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--amber);background:rgba(255,177,60,.12);border:1px solid rgba(255,177,60,.3);
  margin-bottom:18px;
}
.page-hero h1{
  font-size:42px;font-weight:800;line-height:1.15;letter-spacing:-.02em;max-width:620px;
}
.page-hero h1 .hl{color:var(--mint)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text);max-width:560px}
.hero-desc{margin-top:12px;font-size:15px;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

.score-panel{
  background:var(--card);border:1px solid var(--line-strong);border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  padding:24px;box-shadow:var(--shadow-1);
}
.score-head{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.08em}
.score-head .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 12px rgba(35,224,160,.8)}
.score-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}
.score-row:last-of-type{border-bottom:none}
.score-row span{font-size:14px;color:var(--muted)}
.score-row b{font-size:26px;font-weight:800;color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.1}
.score-bar{margin-top:10px;height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.score-bar i{display:block;height:100%;width:72%;border-radius:999px;background:var(--mint);box-shadow:0 0 12px rgba(35,224,160,.6)}
.score-tip{margin-top:12px;font-size:12px;color:var(--dim);line-height:1.7}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{
  position:relative;padding-left:18px;font-size:28px;font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.2em;width:4px;height:20px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 12px rgba(35,224,160,.5);
}
.section-sub{margin-top:8px;padding-left:18px;font-size:15px;color:var(--muted);max-width:680px}

/* filter */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--muted);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:color .16s,border-color .16s,background .16s;
}
.chip:hover{color:#fff;border-color:rgba(255,255,255,.22)}
.chip.is-active{color:var(--mint);border-color:rgba(35,224,160,.55);background:rgba(35,224,160,.1);box-shadow:0 0 0 1px rgba(35,224,160,.25)}

/* arena cards */
.arena-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.arena-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.arena-card:hover{transform:translateY(-3px);border-color:rgba(35,224,160,.45);box-shadow:var(--shadow-2)}
.arena-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0}
.arena-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.arena-card:hover .arena-media img{transform:scale(1.03)}
.arena-media .badge{position:absolute;top:14px;left:14px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--mint);background:rgba(35,224,160,.12);border:1px solid rgba(35,224,160,.3);
}
.badge-amber{color:var(--amber);background:rgba(255,177,60,.12);border-color:rgba(255,177,60,.3)}
.arena-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.arena-body h3{font-size:18px;font-weight:600;letter-spacing:-.01em}
.arena-body p{font-size:14px;color:var(--muted);line-height:1.8}
.arena-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums;margin-top:2px}
.arena-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:12px}

/* stat strip */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line-strong);border-radius:var(--r-card);overflow:hidden;
  background:var(--card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.stat{padding:30px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat b{display:block;font-size:40px;font-weight:800;line-height:1.1;color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--text);font-weight:600}
.stat em{display:block;margin-top:4px;font-size:12px;color:var(--dim);font-style:normal}

/* flow */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.flow-step{
  position:relative;padding:26px 24px 24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:border-color .18s,transform .18s;
}
.flow-step::before{
  content:"";position:absolute;top:0;left:24px;width:42px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--mint),rgba(35,224,160,0));
}
.flow-step:hover{border-color:rgba(35,224,160,.35);transform:translateY(-2px)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:999px;margin-bottom:14px;
  border:1px solid rgba(35,224,160,.45);color:var(--mint);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.8}

/* faq */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:0 22px;transition:border-color .18s,background .18s;
}
.faq-item:hover{border-color:rgba(255,255,255,.18)}
.faq-item[open]{border-color:rgba(35,224,160,.4);background:rgba(18,28,44,.7)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex-shrink:0;width:8px;height:8px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .18s ease,border-color .18s;
}
.faq-item[open] summary::after{transform:rotate(225deg);border-color:var(--mint)}
.faq-item summary:focus-visible{outline:2px solid var(--mint);outline-offset:4px;border-radius:6px}
.faq-answer{padding:0 0 20px;font-size:15px;color:var(--muted);line-height:1.85;border-top:1px solid var(--line);padding-top:16px}
.faq-item[open] .faq-answer{position:relative;padding-left:14px}
.faq-item[open] .faq-answer::before{
  content:"";position:absolute;left:0;top:18px;bottom:20px;width:3px;border-radius:2px;background:var(--mint);opacity:.8;
}

/* cta */
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  border:1px solid rgba(35,224,160,.25);border-radius:20px;
  padding:56px 32px;
  background:
    radial-gradient(circle at 50% 0%,rgba(35,224,160,.16),rgba(5,8,14,0) 62%),
    var(--bg-alt);
}
.cta-band h2{font-size:28px;font-weight:700;letter-spacing:-.01em}
.cta-band p{margin:12px auto 0;max-width:560px;font-size:15px;color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px}
.cta-note{margin-top:16px;font-size:12px;color:var(--dim)}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg-alt);padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col p{font-size:14px;color:var(--muted);line-height:1.8;transition:color .16s}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--mint);text-underline-offset:4px}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--dim);
}
.footer-bottom span{color:var(--muted)}

/* responsive */
@media (max-width:1180px){
  .mega-panel{width:540px}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .page-hero h1{font-size:34px;max-width:none}
  .score-panel{max-width:520px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .main-nav{gap:0}
  .nav-link{font-size:15px;padding:8px 9px}
}
@media (max-width:900px){
  .main-nav,.mega{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:60px}
  .arena-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:16px}
  .stat-strip{grid-template-columns:1fr}
  .stat{border-right:none;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:none}
  .section{padding:56px 0}
  .cta-band{padding:40px 22px}
  .cta-band h2{font-size:24px}
  .site-footer{padding-top:48px;margin-top:56px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .page-hero{padding:40px 0 44px}
  .page-hero h1{font-size:28px;line-height:1.2}
  .hero-sub{font-size:16px}
  .section-title{font-size:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .stat b{font-size:34px}
  .arena-body{padding:18px}
}
@media (max-width:520px){
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .chip{height:34px;padding:0 13px;font-size:13px}
  .score-panel{padding:18px}
  .arena-foot{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
        --bg:#05080E;
        --bg-alt:#0A1018;
        --card:rgba(18,28,44,0.55);
        --line:rgba(255,255,255,0.08);
        --text:#E8EEF7;
        --muted:#9AA9BE;
        --dim:#64718A;
        --mint:#23E0A0;
        --amber:#FFB13C;
        --violet:#6C5BFF;
        --danger:#FF5C6C;
        --radius-card:16px;
        --radius-img:12px;
        --radius-btn:12px;
        --shadow-rest:0 8px 24px rgba(0,0,0,.45);
        --shadow-hover:0 16px 40px rgba(0,0,0,.55);
        --glow:0 0 0 1px rgba(35,224,160,.5), 0 8px 28px rgba(35,224,160,.22);
        --glow-strong:0 0 0 1px rgba(35,224,160,.65), 0 12px 36px rgba(35,224,160,.34);
        --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
        --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
        margin:0;
        background:var(--bg);
        color:var(--text);
        font-family:var(--font-cn);
        font-size:16px;
        line-height:1.85;
        -webkit-font-smoothing:antialiased;
        -moz-osx-font-smoothing:grayscale;
    }
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none;transition:color .18s ease}
    a:hover{color:#fff}
    button{font-family:inherit}
    h1,h2,h3,h4,p,ul,ol,figure{margin:0}
    ul,ol{padding:0;list-style:none}
    :focus-visible{outline:2px solid var(--mint);outline-offset:3px;box-shadow:0 0 0 4px rgba(35,224,160,.18)}

    .container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

    /* ============ 顶部导航 ============ */
    .site-header{
        position:sticky;top:0;z-index:80;
        background:rgba(5,8,14,.78);
        backdrop-filter:blur(12px);
        -webkit-backdrop-filter:blur(12px);
        border-bottom:1px solid var(--line);
    }
    .header-inner{
        display:flex;align-items:center;justify-content:space-between;
        gap:24px;height:72px;
    }
    .logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
    .logo-mark{
        width:20px;height:20px;border:2px solid var(--mint);border-radius:6px;
        transform:rotate(45deg);
        box-shadow:0 0 14px rgba(35,224,160,.45);
        position:relative;
    }
    .logo-mark::after{
        content:"";position:absolute;inset:4px;border-radius:2px;
        background:linear-gradient(135deg,var(--mint),rgba(108,91,255,.7));
    }
    .logo-text{font-size:20px;font-weight:800;letter-spacing:-.02em;line-height:1}
    .main-nav{display:flex;align-items:center;gap:4px}
    .nav-link{
        position:relative;display:inline-block;
        padding:10px 16px;border-radius:999px;
        font-size:16px;font-weight:500;color:var(--muted);
        transition:color .18s ease,background-color .18s ease;
    }
    .nav-link::after{
        content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
        background:var(--mint);border-radius:2px;
        transform:scaleX(0);transform-origin:left;
        transition:transform .2s ease;
    }
    .nav-link:hover{color:#fff;background:rgba(255,255,255,.04)}
    .nav-link:hover::after{transform:scaleX(1)}
    .nav-link.active{color:var(--mint);background:rgba(35,224,160,.08)}
    .nav-link.active::after{transform:scaleX(1)}
    .nav-toggle{
        display:none;align-items:center;justify-content:center;
        width:44px;height:44px;border-radius:12px;
        background:rgba(255,255,255,.05);
        border:1px solid var(--line);color:var(--text);
        cursor:pointer;transition:background-color .18s ease,border-color .18s ease;
    }
    .nav-toggle:hover{background:rgba(255,255,255,.09);border-color:rgba(35,224,160,.4)}
    .nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
    .nav-toggle span::before,.nav-toggle span::after{
        content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
    }
    .nav-toggle span::before{top:-6px}
    .nav-toggle span::after{top:6px}
    .nav-drawer{
        display:none;
        border-top:1px solid var(--line);
        background:rgba(5,8,14,.96);
        padding:14px 0 22px;
    }
    .nav-drawer.open{display:block}
    .nav-drawer .nav-link{
        display:block;width:100%;padding:14px 4px;border-radius:10px;
        font-size:17px;
    }
    .nav-drawer .nav-link::after{left:4px;right:auto;width:28px;bottom:8px}

    /* ============ 通用组件 ============ */
    .btn{
        display:inline-flex;align-items:center;justify-content:center;gap:8px;
        padding:13px 26px;border-radius:var(--radius-btn);
        font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
        border:1px solid transparent;cursor:pointer;
        transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
    }
    .btn-primary{
        background:var(--mint);color:#04140F;box-shadow:var(--glow);
    }
    .btn-primary:hover{background:#38f0b2;color:#04140F;box-shadow:var(--glow-strong);transform:translateY(-1px)}
    .btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.28)}
    .btn-ghost{
        background:transparent;color:#fff;border-color:rgba(255,255,255,.16);
    }
    .btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.32);transform:translateY(-1px)}
    .btn-ghost:active{transform:translateY(0)}
    .btn-sm{padding:9px 18px;font-size:14px;border-radius:999px}

    .badge{
        display:inline-flex;align-items:center;gap:6px;
        height:24px;padding:0 11px;border-radius:999px;
        font-size:12px;font-weight:600;letter-spacing:.02em;
        background:rgba(35,224,160,.12);color:var(--mint);
        border:1px solid rgba(35,224,160,.3);
    }
    .badge-amber{background:rgba(255,177,60,.12);color:var(--amber);border-color:rgba(255,177,60,.3)}
    .badge-violet{background:rgba(108,91,255,.14);color:#A99CFF;border-color:rgba(108,91,255,.34)}

    .section{padding:96px 0}
    .section-alt{background:var(--bg-alt)}
    .section-head{margin-bottom:44px;max-width:760px}
    .eyebrow{
        display:inline-flex;align-items:center;gap:8px;
        font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
        color:var(--mint);margin-bottom:14px;
    }
    .eyebrow::before{content:"";width:18px;height:2px;background:var(--mint);border-radius:2px}
    .section-head h2{
        position:relative;padding-left:20px;
        font-size:28px;font-weight:700;line-height:1.35;letter-spacing:-.01em;
    }
    .section-head h2::before{
        content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
        background:linear-gradient(180deg,var(--mint),var(--violet));
    }
    .section-head p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.85}

    /* ============ 面包屑 ============ */
    .breadcrumb{padding:26px 0 0}
    .breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim)}
    .breadcrumb li{display:flex;align-items:center;gap:8px}
    .breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.18)}
    .breadcrumb a{color:var(--muted)}
    .breadcrumb a:hover{color:var(--mint)}
    .breadcrumb [aria-current]{color:var(--text)}

    /* ============ Hero ============ */
    .cat-hero{
        position:relative;overflow:hidden;
        padding:64px 0 88px;
        border-bottom:1px solid var(--line);
    }
    .cat-hero-bg{
        position:absolute;inset:0;
        background-image:url("/assets/images/backpic/back-2.png");
        background-size:cover;background-position:center right;
        opacity:.5;
    }
    .cat-hero::before{
        content:"";position:absolute;inset:0;
        background:
            linear-gradient(90deg,#05080E 8%,rgba(5,8,14,.86) 46%,rgba(5,8,14,.42) 78%,rgba(5,8,14,.82) 100%);
    }
    .cat-hero .container{position:relative;z-index:2}
    .cat-hero-inner{max-width:720px}
    .cat-hero h1{
        font-size:42px;font-weight:800;line-height:1.15;letter-spacing:-.02em;
        margin-bottom:20px;
    }
    .cat-hero h1 em{font-style:normal;color:var(--mint)}
    .cat-hero .lead{
        font-size:16px;color:var(--muted);line-height:1.85;max-width:620px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
    .hero-meta{
        display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:36px;
        padding-top:26px;border-top:1px solid var(--line);
    }
    .hero-meta-item{display:flex;flex-direction:column;gap:2px}
    .hero-meta-item strong{
        font-family:var(--font-num);font-variant-numeric:tabular-nums;
        font-size:24px;font-weight:700;color:var(--amber);letter-spacing:.02em;line-height:1.2;
    }
    .hero-meta-item span{font-size:12px;color:var(--dim);letter-spacing:.04em}

    /* ============ 编号步骤 ============ */
    .steps-wrap{
        display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
        gap:56px;align-items:start;
    }
    .steps{position:relative}
    .steps::before{
        content:"";position:absolute;left:27px;top:22px;bottom:34px;width:2px;
        background:linear-gradient(180deg,rgba(35,224,160,.6),rgba(108,91,255,.3) 62%,rgba(255,255,255,0));
    }
    .step{
        position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);
        gap:24px;padding-bottom:42px;
    }
    .step:last-child{padding-bottom:0}
    .step-num{
        position:relative;z-index:2;
        display:flex;align-items:center;justify-content:center;
        width:56px;height:56px;border-radius:16px;
        font-family:var(--font-num);font-variant-numeric:tabular-nums;
        font-size:20px;font-weight:700;letter-spacing:.02em;
        color:var(--mint);
        background:rgba(18,28,44,.9);
        border:1px solid rgba(35,224,160,.34);
        box-shadow:0 0 0 6px rgba(5,8,14,.9);
        transition:border-color .2s ease,box-shadow .2s ease,color .2s ease;
    }
    .step:hover .step-num{
        border-color:rgba(35,224,160,.7);
        box-shadow:0 0 0 6px rgba(5,8,14,.9),0 0 22px rgba(35,224,160,.3);
    }
    .step-body{padding-top:4px}
    .step-body h3{
        font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px;
        letter-spacing:-.01em;
    }
    .step-body p{font-size:15px;color:var(--muted);line-height:1.85}
    .step-body p+p{margin-top:8px}
    .step-body .step-tag{margin-left:10px;vertical-align:2px}

    /* ============ 侧栏图卡 ============ */
    .side-card{
        background:var(--card);
        border:1px solid var(--line);
        border-radius:var(--radius-card);
        backdrop-filter:blur(12px);
        -webkit-backdrop-filter:blur(12px);
        box-shadow:var(--shadow-rest);
        overflow:hidden;
        position:sticky;top:96px;
    }
    .side-card figure{margin:0}
    .side-card img{
        width:100%;aspect-ratio:4/3;object-fit:cover;
        border-radius:0;
    }
    .side-card-body{padding:22px 24px 26px}
    .side-card-body h3{font-size:17px;font-weight:600;margin:12px 0 8px}
    .side-card-body p{font-size:14px;color:var(--muted);line-height:1.8}
    .side-list{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
    .side-list li{
        display:flex;gap:10px;align-items:flex-start;
        font-size:14px;color:var(--muted);padding:7px 0;
    }
    .side-list li::before{
        content:"";flex:0 0 6px;width:6px;height:6px;margin-top:9px;border-radius:2px;
        background:var(--mint);
    }

    /* ============ 关键动作卡片 ============ */
    .key-grid{
        display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
    }
    .key-card{
        position:relative;
        background:var(--card);
        border:1px solid var(--line);
        border-radius:var(--radius-card);
        padding:26px 24px;
        backdrop-filter:blur(10px);
        -webkit-backdrop-filter:blur(10px);
        transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
    }
    .key-card:hover{
        border-color:rgba(35,224,160,.42);
        transform:translateY(-3px);
        box-shadow:var(--shadow-hover);
    }
    .key-card h3{font-size:17px;font-weight:600;margin:14px 0 8px}
    .key-card p{font-size:14px;color:var(--muted);line-height:1.8}
    .key-icon{
        display:flex;align-items:center;justify-content:center;
        width:42px;height:42px;border-radius:12px;
        border:1px solid rgba(35,224,160,.34);
        background:rgba(35,224,160,.1);
        color:var(--mint);font-size:17px;
    }

    /* ============ FAQ ============ */
    .faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
    .faq-item{
        background:var(--card);
        border:1px solid var(--line);
        border-radius:var(--radius-card);
        backdrop-filter:blur(10px);
        -webkit-backdrop-filter:blur(10px);
        overflow:hidden;
        transition:border-color .2s ease;
    }
    .faq-item:hover{border-color:rgba(255,255,255,.16)}
    .faq-item[open]{border-color:rgba(35,224,160,.4)}
    .faq-item summary{
        display:flex;align-items:center;justify-content:space-between;gap:20px;
        padding:20px 24px;cursor:pointer;list-style:none;
        font-size:16px;font-weight:600;line-height:1.6;
        transition:color .18s ease;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:hover{color:var(--mint)}
    .faq-item summary .faq-arrow{
        flex:0 0 auto;width:22px;height:22px;position:relative;
        transition:transform .2s ease,color .2s ease;color:var(--dim);
    }
    .faq-item summary .faq-arrow::before,
    .faq-item summary .faq-arrow::after{
        content:"";position:absolute;top:10px;left:4px;width:14px;height:2px;
        background:currentColor;border-radius:2px;
    }
    .faq-item summary .faq-arrow::before{transform:rotate(45deg);left:1px}
    .faq-item summary .faq-arrow::after{transform:rotate(-45deg);left:8px}
    .faq-item[open] summary .faq-arrow{transform:rotate(180deg);color:var(--mint)}
    .faq-answer{
        padding:0 24px 22px 24px;
        border-left:3px solid var(--mint);
        margin-left:0;
        font-size:15px;line-height:1.85;color:var(--muted);
    }
    .faq-answer p+p{margin-top:10px}

    /* ============ 提示条 ============ */
    .notice{
        display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;align-items:flex-start;
        padding:26px 28px;
        border:1px solid rgba(255,177,60,.28);
        border-left:4px solid var(--amber);
        border-radius:var(--radius-card);
        background:rgba(255,177,60,.06);
    }
    .notice-icon{
        display:flex;align-items:center;justify-content:center;
        width:40px;height:40px;border-radius:12px;
        background:rgba(255,177,60,.14);color:var(--amber);
        font-family:var(--font-num);font-weight:700;font-size:18px;
    }
    .notice h3{font-size:17px;font-weight:600;margin-bottom:8px;color:var(--text)}
    .notice p{font-size:14px;color:var(--muted);line-height:1.85}
    .notice ul{margin-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px}
    .notice li{
        display:flex;gap:8px;align-items:flex-start;
        font-size:14px;color:var(--muted);
    }
    .notice li::before{
        content:"";flex:0 0 6px;width:6px;height:6px;margin-top:9px;border-radius:50%;
        background:var(--amber);
    }

    /* ============ CTA ============ */
    .cta-band{
        position:relative;overflow:hidden;
        padding:96px 0;
        border-top:1px solid var(--line);
        background:
            radial-gradient(720px 320px at 50% 0%,rgba(35,224,160,.14),transparent 70%),
            radial-gradient(560px 280px at 80% 100%,rgba(108,91,255,.14),transparent 70%),
            var(--bg);
    }
    .cta-inner{max-width:720px;margin:0 auto;text-align:center}
    .cta-inner h2{
        font-size:30px;font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-bottom:16px;
    }
    .cta-inner p{font-size:15px;color:var(--muted);line-height:1.85}
    .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
    .cta-note{margin-top:20px;font-size:12px;color:var(--dim);line-height:1.8}

    /* ============ 页脚 ============ */
    .site-footer{
        border-top:1px solid var(--line);
        background:var(--bg-alt);
        padding:72px 0 0;
    }
    .footer-grid{
        display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:40px;
        padding-bottom:52px;
    }
    .footer-brand .logo{margin-bottom:18px}
    .footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:380px}
    .footer-col h4{
        font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;color:var(--text);
    }
    .footer-col ul{display:flex;flex-direction:column;gap:11px}
    .footer-col li a{font-size:14px;color:var(--muted)}
    .footer-col li a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--mint)}
    .footer-col p{font-size:13px;color:var(--dim);line-height:1.85}
    .footer-bottom{
        display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
        padding:22px 0 28px;border-top:1px solid var(--line);
        font-size:13px;color:var(--dim);
    }
    .footer-bottom span{color:var(--muted)}

    /* ============ 响应式 ============ */
    @media (max-width:1279px){
        .cat-hero h1{font-size:38px}
        .steps-wrap{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px}
    }
    @media (max-width:1023px){
        .container{padding:0 24px}
        .main-nav{display:none}
        .nav-toggle{display:inline-flex}
        .cat-hero{padding:52px 0 68px}
        .cat-hero h1{font-size:34px}
        .section{padding:76px 0}
        .steps-wrap{grid-template-columns:minmax(0,1fr);gap:36px}
        .side-card{position:static}
        .key-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
        .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
        .footer-brand{grid-column:1 / -1}
        .cta-inner h2{font-size:26px}
    }
    @media (max-width:767px){
        .container{padding:0 20px}
        .header-inner{height:60px}
        .logo-text{font-size:18px}
        .cat-hero{padding:42px 0 56px}
        .cat-hero h1{font-size:28px;line-height:1.25}
        .cat-hero .lead{font-size:15px}
        .hero-actions{gap:10px}
        .hero-actions .btn{width:100%}
        .hero-meta{gap:16px 22px}
        .section{padding:56px 0}
        .section-head{margin-bottom:32px}
        .section-head h2{font-size:22px;padding-left:16px}
        .step{grid-template-columns:44px minmax(0,1fr);gap:16px;padding-bottom:32px}
        .steps::before{left:21px}
        .step-num{width:44px;height:44px;border-radius:12px;font-size:16px}
        .step-body h3{font-size:17px}
        .key-grid{grid-template-columns:minmax(0,1fr)}
        .faq-item summary{padding:17px 18px;font-size:15px}
        .faq-answer{padding:0 18px 20px 18px;font-size:14px}
        .notice{grid-template-columns:minmax(0,1fr);padding:22px 20px;gap:14px}
        .notice ul{grid-template-columns:minmax(0,1fr)}
        .cta-band{padding:64px 0}
        .cta-actions .btn{width:100%}
        .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;padding-bottom:38px}
        .site-footer{padding-top:52px}
        .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    }
    @media (prefers-reduced-motion:reduce){
        *,*::before,*::after{transition:none!important;animation:none!important}
        html{scroll-behavior:auto}
    }

/* roulang page: category2 */
:root{
  --bg:#05080E;
  --bg-2:#0A1018;
  --card:rgba(18,28,44,.55);
  --card-solid:#0E1725;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --mint:#23E0A0;
  --mint-soft:rgba(35,224,160,.12);
  --amber:#FFB13C;
  --amber-soft:rgba(255,177,60,.12);
  --violet:#6C5BFF;
  --text:#E8EEF7;
  --muted:#9AA9BE;
  --dim:#64718A;
  --danger:#FF5C6C;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.45);
  --sh-2:0 16px 40px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(35,224,160,.5),0 8px 28px rgba(35,224,160,.22);
  --glow-lg:0 0 0 1px rgba(35,224,160,.6),0 12px 36px rgba(35,224,160,.32);
  --container:1240px;
  --ease:160ms cubic-bezier(.4,0,.2,1);
}
html{
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",Inter,system-ui,-apple-system,sans-serif;
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:96px;
}
html body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
*,*::before,*::after{box-sizing:border-box}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,14,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{
  width:24px;height:24px;border:2px solid var(--mint);border-radius:7px;
  transform:rotate(45deg);position:relative;
  box-shadow:0 0 14px rgba(35,224,160,.35);
}
.logo-mark::after{content:"";position:absolute;inset:5px;background:var(--mint);border-radius:2px;opacity:.85}
.logo-text{font-size:20px;font-weight:800;letter-spacing:-.01em;line-height:1}
.main-nav{display:flex;align-items:center;gap:24px}
.nav-link{
  position:relative;display:inline-block;
  color:var(--muted);font-size:17px;font-weight:500;
  padding:6px 0;line-height:1.5;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:#fff}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link.active{color:var(--mint);text-shadow:0 0 18px rgba(35,224,160,.4)}
.nav-link.active::after{transform:scaleX(1)}

.mega-wrap{margin-left:auto;position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-strong);
  color:var(--text);border-radius:999px;
  padding:8px 16px;font-size:15px;cursor:pointer;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{
  color:#fff;border-color:rgba(35,224,160,.5);background:rgba(35,224,160,.08);
}
.mega-trigger i{font-size:11px;color:var(--mint);transition:transform var(--ease)}
.mega-wrap:hover .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:640px;padding:20px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:20px;
  background:rgba(10,16,24,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);
  border-radius:12px;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 140ms ease,transform 140ms ease,visibility 140ms;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h5{
  margin:0 0 10px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dim);font-weight:600;
}
.mega-col ul li+li{margin-top:4px}
.mega-col ul a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 10px;border-radius:8px;color:var(--muted);font-size:15px;
  transition:background var(--ease),color var(--ease);
}
.mega-col ul a:hover{background:rgba(35,224,160,.08);color:#fff}
.mega-col ul a span{font-size:12px;color:var(--dim)}
.mega-card{
  margin-top:14px;grid-column:1/-1;display:flex;gap:14px;align-items:center;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:rgba(255,255,255,.02);transition:border-color var(--ease);
}
.mega-card:hover{border-color:rgba(35,224,160,.45)}
.mega-card img{width:96px;height:64px;object-fit:cover;border-radius:0}
.mega-card div{padding:8px 12px 8px 0}
.mega-card strong{display:block;font-size:15px;font-weight:600;color:var(--text)}
.mega-card small{display:block;font-size:12px;color:var(--dim);margin-top:2px}

.nav-toggle{
  display:none;margin-left:auto;
  width:42px;height:42px;border-radius:12px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-strong);color:var(--text);
  font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(35,224,160,.5);color:var(--mint)}
.mobile-menu{display:none}
.mobile-menu .nav-link{display:block;padding:12px 4px;font-size:16px}
.mobile-menu .nav-link::after{display:none}
.mobile-cta{margin-top:14px;display:block}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--mint);color:#04120C;box-shadow:var(--glow)}
.btn-primary:hover{background:#31eba9;box-shadow:var(--glow-lg);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35)}
.btn-ghost{
  background:transparent;color:var(--text);
  border-color:var(--line-strong);
}
.btn-ghost:hover{border-color:rgba(35,224,160,.55);color:#fff;background:rgba(35,224,160,.07);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--mint);font-size:14px;font-weight:600;
  transition:color var(--ease);
}
.link-arrow i{transition:transform var(--ease)}
.link-arrow:hover i{transform:translateX(2px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);color:var(--muted);
}
.badge-mint{background:var(--mint-soft);color:var(--mint);border-color:rgba(35,224,160,.3)}
.badge-amber{background:var(--amber-soft);color:var(--amber);border-color:rgba(255,177,60,.3)}
.badge-violet{background:rgba(108,91,255,.12);color:#A79CFF;border-color:rgba(108,91,255,.32)}
.badge-live{background:rgba(35,224,160,.14);color:var(--mint);border-color:rgba(35,224,160,.34)}
.badge-live::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 8px var(--mint);
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;opacity:.55;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#05080E 22%,rgba(5,8,14,.86) 52%,rgba(5,8,14,.52) 100%),
             linear-gradient(180deg,rgba(5,8,14,.5),rgba(5,8,14,.95));
}
.hero-inner{position:relative;padding:44px 0 76px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim)}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--dim)}
.breadcrumb a{color:var(--muted);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--mint)}
.breadcrumb li[aria-current]{color:var(--text)}
.eyebrow{
  margin-top:34px;display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--mint);
  padding:6px 14px;border-radius:999px;
  background:rgba(35,224,160,.09);border:1px solid rgba(35,224,160,.26);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}
.hero h1{
  margin-top:22px;max-width:760px;
  font-size:42px;line-height:1.16;font-weight:800;letter-spacing:-.02em;
}
.hero h1 .hl{
  background:linear-gradient(180deg,#FFFFFF 30%,#23E0A0 130%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:20px;max-width:560px;
  font-size:17px;line-height:1.8;color:var(--muted);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.hero-tags li{
  font-size:13px;color:var(--muted);
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.hero-tags li i{color:var(--amber);margin-right:6px;font-size:12px}

/* ---------- stat strip ---------- */
.stat-strip{border-bottom:1px solid var(--line);background:var(--bg-2)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:30px 32px}
.stat{position:relative;padding-left:18px}
.stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:rgba(35,224,160,.5)}
.stat-num{
  display:block;font-size:30px;font-weight:800;line-height:1.2;color:var(--text);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--amber);margin-left:4px}
.stat-label{display:block;margin-top:4px;font-size:13px;color:var(--dim)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px}
.section-title{
  position:relative;padding-left:16px;
  font-size:28px;font-weight:700;line-height:1.32;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--mint),rgba(35,224,160,.2));
}
.section-desc{margin-top:10px;padding-left:16px;max-width:620px;color:var(--muted);font-size:15px}

/* ---------- split layout ---------- */
.split-84{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:32px;align-items:start}
.stream{display:flex;flex-direction:column;gap:16px}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:6px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;
  font-size:14px;color:var(--muted);cursor:pointer;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.chip:hover{color:#fff;border-color:var(--line-strong)}
.chip.is-on{color:var(--mint);border-color:rgba(35,224,160,.5);background:rgba(35,224,160,.1)}

.match-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:18px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.match-card:hover{border-color:rgba(35,224,160,.5);transform:translateY(-2px);box-shadow:var(--sh-2)}
.match-thumb{
  flex:0 0 160px;width:160px;height:100px;
  border-radius:var(--r-img);overflow:hidden;background:var(--bg-2);
}
.match-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease}
.match-card:hover .match-thumb img{transform:scale(1.04)}
.match-body{flex:1 1 auto;min-width:0}
.match-top{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.match-score{
  margin-left:auto;font-size:15px;font-weight:700;color:var(--amber);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.match-title{
  display:block;margin-top:10px;
  font-size:18px;font-weight:600;line-height:1.5;color:var(--text);
  transition:color var(--ease);
}
.match-card:hover .match-title{color:var(--mint)}
.match-desc{
  margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.match-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:12px;font-size:12.5px;color:var(--dim);
}
.match-meta i{color:var(--dim);margin-right:5px}
.match-meta .link-arrow{margin-left:auto;font-size:13px}

/* ---------- sticky panel ---------- */
.panel-card{
  position:sticky;top:96px;
  padding:22px;border-radius:var(--r-card);
  background:rgba(14,23,37,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);
  box-shadow:var(--sh-1);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.panel-head h3{font-size:17px;font-weight:700}
.panel-nums{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.panel-num{
  padding:12px 10px;border-radius:12px;text-align:center;
  background:rgba(255,255,255,.035);border:1px solid var(--line);
}
.panel-num b{
  display:block;font-size:22px;font-weight:800;line-height:1.2;color:var(--mint);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.panel-num span{display:block;margin-top:2px;font-size:11.5px;color:var(--dim)}
.panel-block{margin-top:20px}
.panel-block .row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.panel-block .row b{color:var(--text);font-variant-numeric:tabular-nums}
.progress-track{
  position:relative;height:8px;margin-top:10px;border-radius:999px;
  background:rgba(255,255,255,.08);overflow:hidden;
}
.progress-fill{
  height:100%;border-radius:999px;
  background:linear-gradient(90deg,rgba(35,224,160,.5),var(--mint));
  box-shadow:0 0 12px rgba(35,224,160,.5);
}
.progress-track::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,transparent 0 calc(20% - 2px),rgba(5,8,14,.92) calc(20% - 2px) 20%);
}
.next-match{
  margin-top:20px;padding:14px;border-radius:12px;
  background:rgba(255,177,60,.07);border:1px solid rgba(255,177,60,.28);
}
.next-match .label{font-size:12px;color:var(--amber);letter-spacing:.06em}
.next-match strong{display:block;margin-top:4px;font-size:15px;font-weight:600}
.next-match small{display:block;margin-top:2px;font-size:12.5px;color:var(--dim);font-variant-numeric:tabular-nums}
.panel-card .btn{margin-top:18px}
.panel-note{margin-top:12px;font-size:12px;color:var(--dim);line-height:1.7}

/* ---------- timeline ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:6px;right:6px;top:17px;height:1px;
  background:linear-gradient(90deg,rgba(35,224,160,.7),rgba(108,91,255,.45),rgba(255,255,255,.05));
}
.tl-step{position:relative;padding-top:48px}
.tl-dot{
  position:absolute;top:0;left:0;
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--mint);
  background:rgba(10,16,24,.96);border:1px solid rgba(35,224,160,.45);
  box-shadow:0 0 0 6px rgba(5,8,14,.9);
  font-variant-numeric:tabular-nums;
}
.tl-step h3{font-size:18px;font-weight:600}
.tl-step p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- who list ---------- */
.who-wrap{display:grid;grid-template-columns:0.9fr 1.5fr;gap:48px;align-items:start}
.who-list{border-top:1px solid var(--line)}
.who-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.who-item .idx{
  font-size:14px;font-weight:700;color:var(--amber);
  font-variant-numeric:tabular-nums;letter-spacing:.08em;
  padding-top:2px;flex:0 0 34px;
}
.who-item h3{font-size:17px;font-weight:600}
.who-item p{margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px}
.faq details{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--card);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:0 20px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq details:hover{border-color:var(--line-strong)}
.faq details[open]{
  border-color:rgba(35,224,160,.38);
  box-shadow:inset 3px 0 0 var(--mint);
}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .chev{color:var(--mint);font-size:13px;transition:transform var(--ease)}
.faq details[open] summary .chev{transform:rotate(180deg)}
.faq .faq-a{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:60px 32px;border-radius:24px;text-align:center;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(620px 260px at 50% 0%,rgba(35,224,160,.16),transparent 72%),
    radial-gradient(420px 240px at 85% 110%,rgba(108,91,255,.14),transparent 70%),
    rgba(14,23,37,.6);
}
.cta-band h2{position:relative;font-size:30px;font-weight:800;letter-spacing:-.01em;line-height:1.3}
.cta-band p{position:relative;margin-top:12px;font-size:15.5px;color:var(--muted)}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}
.cta-note{position:relative;margin-top:16px;font-size:12.5px;color:var(--dim)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--muted);max-width:340px}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text);
  margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul li+li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:color var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--mint)}
.footer-col p{font-size:13.5px;line-height:1.85;color:var(--dim)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);
}
.footer-bottom span{color:var(--muted)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .split-84{grid-template-columns:minmax(0,1fr) 300px;gap:26px}
}
@media (max-width:1023px){
  .container{padding:0 26px}
  .split-84{grid-template-columns:1fr}
  .panel-card{position:static;top:auto}
  .who-wrap{grid-template-columns:1fr;gap:26px}
  .stat-grid{grid-template-columns:repeat(2,1fr);padding:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero h1{font-size:34px}
  .section{padding:72px 0}
  .timeline{grid-template-columns:1fr;gap:0}
  .timeline::before{left:17px;right:auto;top:8px;bottom:8px;width:1px;height:auto;background:linear-gradient(180deg,rgba(35,224,160,.7),rgba(255,255,255,.05))}
  .tl-step{padding-top:0;padding-left:60px;padding-bottom:26px}
  .tl-dot{top:0;left:0}
}
@media (max-width:900px){
  .main-nav{display:none}
  .mega-wrap{display:none}
  .nav-toggle{display:inline-flex}
  .site-header.open .mobile-menu{
    display:block;position:absolute;left:0;right:0;top:100%;
    background:rgba(6,10,17,.98);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    padding:14px 26px 26px;
    max-height:calc(100vh - 72px);overflow-y:auto;
    box-shadow:var(--sh-2);
  }
  .mobile-menu .divider{height:1px;background:var(--line);margin:10px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:60px;gap:16px}
  .logo-text{font-size:18px}
  .hero-inner{padding:30px 0 56px}
  .hero h1{font-size:29px;line-height:1.22;margin-top:18px}
  .hero-sub{font-size:15.5px;margin-top:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .eyebrow{margin-top:26px}
  .section{padding:56px 0}
  .section-title{font-size:23px}
  .section-head{margin-bottom:26px}
  .match-card{flex-direction:column;gap:14px}
  .match-thumb{width:100%;height:172px;flex:none}
  .match-score{margin-left:0}
  .match-meta{gap:12px}
  .match-meta .link-arrow{margin-left:0;width:100%}
  .stat-num{font-size:25px}
  .cta-band{padding:40px 20px;border-radius:18px}
  .cta-band h2{font-size:23px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .panel-nums{grid-template-columns:repeat(3,1fr);gap:8px}
  .panel-num b{font-size:19px}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr;gap:18px;padding:22px 20px}
  .hero-tags li{font-size:12px}
  .match-thumb{height:150px}
  .who-item{flex-direction:column;gap:6px}
  .who-item .idx{padding-top:0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
    --bg:#05080E;
    --bg-alt:#0A1018;
    --card:rgba(18,28,44,.55);
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.16);
    --text:#E8EEF7;
    --muted:#9AA9BE;
    --dim:#64718A;
    --mint:#23E0A0;
    --amber:#FFB13C;
    --violet:#6C5BFF;
    --danger:#FF5C6C;
    --r-card:16px;
    --r-img:12px;
    --r-btn:12px;
    --shadow-1:0 8px 24px rgba(0,0,0,.45);
    --shadow-2:0 16px 40px rgba(0,0,0,.55);
    --glow:0 0 0 1px rgba(35,224,160,.5), 0 8px 28px rgba(35,224,160,.22);
    --glow-hover:0 0 0 1px rgba(35,224,160,.65), 0 12px 36px rgba(35,224,160,.3);
    --container:1240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",Inter,system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background:
      radial-gradient(circle at 82% -8%, rgba(35,224,160,.10), transparent 46%),
      radial-gradient(circle at 8% 12%, rgba(108,91,255,.10), transparent 42%);
    pointer-events:none;
    z-index:0;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  button{font-family:inherit;}
  :focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1;}
  .num{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(5,8,14,.78);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;gap:28px;height:72px;}
  .logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
  .logo-mark{
    width:26px;height:26px;display:block;position:relative;
    border:2px solid var(--mint);border-radius:8px;
    transform:rotate(45deg);
    box-shadow:0 0 14px rgba(35,224,160,.28);
  }
  .logo-mark::after{
    content:"";position:absolute;inset:6px;border-radius:3px;
    background:linear-gradient(135deg,var(--mint),rgba(35,224,160,.25));
  }
  .logo-text{font-size:20px;font-weight:800;letter-spacing:-.02em;color:#fff;}
  .main-nav{display:flex;align-items:center;gap:26px;flex:1 1 auto;}
  .nav-link{
    position:relative;font-size:16px;font-weight:500;color:var(--muted);
    padding:6px 0;transition:color .18s ease;white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
    background:var(--mint);border-radius:2px;transform:scaleX(0);transform-origin:left;
    transition:transform .18s ease;
  }
  .nav-link:hover{color:#fff;}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--mint);}
  .nav-link.active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(35,224,160,.5);}
  .header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:10px;
    border:1px solid var(--line-strong);background:transparent;color:var(--text);
    font-size:17px;cursor:pointer;transition:border-color .18s ease,background .18s ease;
  }
  .nav-toggle:hover{border-color:rgba(35,224,160,.5);background:rgba(35,224,160,.08);}
  .mobile-drawer{
    display:none;border-top:1px solid var(--line);
    background:rgba(8,13,22,.98);
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer .container{padding-top:14px;padding-bottom:22px;}
  .mobile-drawer a{
    display:block;padding:12px 4px;font-size:16px;color:var(--muted);
    border-bottom:1px solid var(--line);transition:color .18s ease;
  }
  .mobile-drawer a:hover,.mobile-drawer a.active{color:var(--mint);}
  .mobile-drawer .btn{margin-top:16px;width:100%;border-bottom:none;}

  /* ============ Buttons ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:600;line-height:1;
    padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
    cursor:pointer;transition:transform .16s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .btn i{font-size:13px;}
  .btn-primary{background:var(--mint);color:#04120C;box-shadow:var(--glow);}
  .btn-primary:hover{background:#2ff0af;box-shadow:var(--glow-hover);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.28);}
  .btn-ghost{background:transparent;color:#fff;border-color:var(--line-strong);}
  .btn-ghost:hover{border-color:rgba(35,224,160,.55);color:var(--mint);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-sm{padding:10px 18px;font-size:14px;}
  .btn-xs{padding:8px 14px;font-size:13px;border-radius:9px;}
  .btn-block{width:100%;}

  /* ============ Badges & tags ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;
    border-radius:999px;font-size:12px;font-weight:600;line-height:1;
    background:rgba(35,224,160,.12);color:var(--mint);
    border:1px solid rgba(35,224,160,.3);
  }
  .badge-amber{background:rgba(255,177,60,.12);color:var(--amber);border-color:rgba(255,177,60,.32);}
  .badge-violet{background:rgba(108,91,255,.14);color:#A79CFF;border-color:rgba(108,91,255,.34);}
  .tag{
    display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
    border-radius:999px;font-size:12px;font-weight:600;line-height:1;
    border:1px solid var(--line-strong);color:var(--muted);background:rgba(255,255,255,.03);
  }
  .tag-done{color:var(--mint);border-color:rgba(35,224,160,.32);background:rgba(35,224,160,.1);}
  .tag-run{color:var(--amber);border-color:rgba(255,177,60,.32);background:rgba(255,177,60,.1);}
  .tag-lock{color:var(--dim);border-color:rgba(255,255,255,.1);background:rgba(255,255,255,.03);}

  /* ============ Section ============ */
  .section{padding:96px 0;position:relative;}
  .section-alt{background:var(--bg-alt);}
  .section-head{max-width:760px;margin-bottom:40px;}
  .section-title{
    font-size:28px;font-weight:700;letter-spacing:-.01em;line-height:1.3;
    display:flex;align-items:center;gap:14px;
  }
  .section-title::before{
    content:"";width:4px;height:20px;border-radius:2px;background:var(--mint);
    box-shadow:0 0 12px rgba(35,224,160,.5);flex:0 0 auto;
  }
  .section-sub{margin-top:14px;color:var(--muted);font-size:15.5px;}
  .section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
  .link-more{
    font-size:14px;font-weight:600;color:var(--mint);
    display:inline-flex;align-items:center;gap:6px;transition:gap .18s ease,color .18s ease;
  }
  .link-more:hover{gap:10px;color:#5cf2c0;}

  /* ============ Hero ============ */
  .hero{
    position:relative;overflow:hidden;
    border-bottom:1px solid var(--line);
    background-image:linear-gradient(90deg,#05080E 18%,rgba(5,8,14,.72) 52%,rgba(5,8,14,.35) 100%),
      url("/assets/images/backpic/back-1.webp");
    background-size:cover;
    background-position:center;
  }
  .hero-inner{
    display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
    padding:86px 0 84px;
  }
  .hero-copy{max-width:600px;}
  .hero-eyebrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
  .hero h1{
    font-size:42px;font-weight:800;line-height:1.15;letter-spacing:-.02em;color:#fff;
  }
  .hero h1 em{font-style:normal;color:var(--mint);}
  .hero-lead{margin-top:18px;font-size:16.5px;color:var(--muted);max-width:520px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-note{
    margin-top:18px;font-size:12.5px;color:var(--dim);
    display:flex;align-items:center;gap:8px;
  }
  .scoreboard{
    border-radius:var(--r-card);border:1px solid var(--line-strong);
    background:var(--card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
    box-shadow:var(--shadow-1);padding:22px 24px;
  }
  .scoreboard-head{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:6px;
  }
  .scoreboard-head span:first-child{font-size:13px;color:var(--muted);letter-spacing:.06em;}
  .scoreboard-row{
    display:flex;align-items:baseline;justify-content:space-between;gap:16px;
    padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.07);
  }
  .scoreboard-row:last-child{border-bottom:none;padding-bottom:2px;}
  .scoreboard-label{font-size:14px;color:var(--muted);}
  .scoreboard-value{font-size:24px;font-weight:800;color:var(--amber);}
  .scoreboard-value.mint{color:var(--mint);}
  .scoreboard-unit{font-size:12px;color:var(--dim);margin-left:4px;font-weight:500;}

  /* ============ Stats strip ============ */
  .stats-strip{
    display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
    padding:26px 28px;border-radius:var(--r-card);
    border:1px solid var(--line);background:var(--bg-alt);
  }
  .stat-item{display:flex;flex-direction:column;gap:6px;}
  .stat-num{font-size:32px;font-weight:800;color:var(--mint);line-height:1.1;}
  .stat-num.amber{color:var(--amber);}
  .stat-num.violet{color:#A79CFF;}
  .stat-label{font-size:13.5px;color:var(--muted);}

  /* ============ Tier grid ============ */
  .tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .tier-card{
    position:relative;border-radius:var(--r-card);padding:24px;
    border:1px solid var(--line);background:var(--card);
    backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    box-shadow:var(--shadow-1);
    transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
    display:flex;flex-direction:column;gap:12px;
  }
  .tier-card:hover{
    border-color:rgba(35,224,160,.5);transform:translateY(-3px);box-shadow:var(--shadow-2);
  }
  .tier-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .tier-badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;font-weight:700;line-height:1;
    background:rgba(255,177,60,.12);color:var(--amber);border:1px solid rgba(255,177,60,.32);
  }
  .tier-index{font-size:12px;color:var(--dim);letter-spacing:.08em;}
  .tier-card h3{font-size:18px;font-weight:600;color:#fff;}
  .tier-value{
    display:flex;align-items:baseline;gap:6px;font-size:30px;font-weight:800;
    color:var(--mint);line-height:1.1;
  }
  .tier-value small{font-size:13px;font-weight:500;color:var(--dim);}
  .tier-desc{font-size:14.5px;color:var(--muted);}
  .tier-foot{
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
  }
  .tier-cond{font-size:12.5px;color:var(--dim);}

  /* ============ Task rows ============ */
  .panel{
    border-radius:var(--r-card);border:1px solid var(--line);
    background:var(--card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    box-shadow:var(--shadow-1);overflow:hidden;
  }
  .panel-head{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:20px 24px;border-bottom:1px solid var(--line);
  }
  .panel-head h3{font-size:17px;font-weight:600;}
  .panel-head .hint{font-size:12.5px;color:var(--dim);}
  .task-list{display:block;}
  .task-row{
    display:grid;grid-template-columns:1.5fr 1.05fr auto auto;align-items:center;gap:22px;
    padding:20px 24px;border-bottom:1px solid var(--line);
    transition:background .18s ease;
  }
  .task-row:last-child{border-bottom:none;}
  .task-row:hover{background:rgba(35,224,160,.04);}
  .task-title{display:block;font-size:15.5px;font-weight:600;color:#fff;}
  .task-meta{display:block;font-size:12.5px;color:var(--dim);margin-top:3px;}
  .task-progress{display:flex;align-items:center;gap:12px;}
  .bar{
    position:relative;flex:1 1 auto;height:8px;border-radius:999px;
    background:rgba(255,255,255,.08);overflow:hidden;min-width:80px;
  }
  .bar span{
    display:block;height:100%;border-radius:999px;
    background:linear-gradient(90deg,rgba(35,224,160,.75),var(--mint));
    box-shadow:0 0 10px rgba(35,224,160,.55);
    transition:width .3s ease;
  }
  .bar span.amber{background:linear-gradient(90deg,rgba(255,177,60,.75),var(--amber));box-shadow:0 0 10px rgba(255,177,60,.5);}
  .p-100{width:100%;}
  .p-80{width:80%;}
  .p-60{width:60%;}
  .p-45{width:45%;}
  .p-20{width:20%;}
  .p-0{width:0;}
  .task-num{font-size:13px;color:var(--muted);flex:0 0 auto;min-width:52px;text-align:right;}

  /* ============ Steps ============ */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;}
  .step{
    position:relative;padding:26px 24px 24px;border-radius:var(--r-card);
    border:1px solid var(--line);background:var(--bg-alt);
    transition:border-color .2s ease,transform .2s ease;
  }
  .step:hover{border-color:rgba(35,224,160,.45);transform:translateY(-2px);}
  .step-no{
    width:38px;height:38px;border-radius:999px;display:flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:800;color:var(--mint);
    border:1px solid rgba(35,224,160,.45);background:rgba(35,224,160,.1);
    margin-bottom:16px;
  }
  .step h3{font-size:17px;font-weight:600;color:#fff;margin-bottom:8px;}
  .step p{font-size:14.5px;color:var(--muted);}

  /* ============ Feature / split ============ */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
  .split-img{
    border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--shadow-1);
  }
  .split-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .3s ease;}
  .split-img:hover img{transform:scale(1.03);}
  .feature-list{display:grid;gap:14px;margin-top:22px;}
  .feature-list li{
    display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--muted);
    padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.02);
    transition:border-color .18s ease,background .18s ease;
  }
  .feature-list li:hover{border-color:rgba(35,224,160,.35);background:rgba(35,224,160,.05);}
  .feature-list i{color:var(--mint);margin-top:6px;font-size:13px;}
  .feature-list strong{color:#fff;font-weight:600;}

  /* ============ FAQ ============ */
  .faq-list{display:grid;gap:14px;max-width:900px;}
  .faq-item{
    border-radius:var(--r-card);border:1px solid var(--line);
    background:var(--card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    overflow:hidden;transition:border-color .18s ease;
  }
  .faq-item:hover{border-color:rgba(255,255,255,.16);}
  .faq-item[open]{border-color:rgba(35,224,160,.4);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 24px;font-size:16px;font-weight:600;color:#fff;position:relative;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
    background:var(--mint);opacity:0;transition:opacity .18s ease;
  }
  .faq-item[open] summary::before{opacity:1;}
  .faq-item summary i{color:var(--muted);font-size:13px;transition:transform .2s ease,color .2s ease;}
  .faq-item[open] summary i{transform:rotate(180deg);color:var(--mint);}
  .faq-answer{padding:0 24px 20px;font-size:15px;color:var(--muted);line-height:1.85;}

  /* ============ Tip bar ============ */
  .tip-bar{
    margin-top:36px;display:flex;gap:16px;align-items:flex-start;
    padding:20px 22px;border-radius:var(--r-card);
    border:1px solid var(--line);border-left:3px solid var(--amber);
    background:rgba(255,177,60,.06);
  }
  .tip-bar i{color:var(--amber);font-size:16px;margin-top:5px;}
  .tip-bar p{font-size:14px;color:var(--muted);}
  .tip-bar strong{color:#fff;font-weight:600;}

  /* ============ CTA ============ */
  .cta-section{padding:96px 0;position:relative;overflow:hidden;}
  .cta-section::before{
    content:"";position:absolute;left:50%;top:50%;width:760px;height:420px;transform:translate(-50%,-50%);
    background:radial-gradient(ellipse at center,rgba(35,224,160,.14),transparent 68%);
    pointer-events:none;
  }
  .cta-box{
    position:relative;max-width:760px;margin:0 auto;text-align:center;
    border-radius:24px;border:1px solid var(--line-strong);
    background:rgba(18,28,44,.5);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
    padding:52px 40px;box-shadow:var(--shadow-1);
  }
  .cta-box h2{font-size:30px;font-weight:700;letter-spacing:-.01em;color:#fff;}
  .cta-box p{margin-top:14px;color:var(--muted);font-size:15.5px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}
  .cta-note{margin-top:16px;font-size:12.5px;color:var(--dim);}

  /* ============ Footer ============ */
  .site-footer{border-top:1px solid var(--line);background:#04070C;position:relative;z-index:1;}
  .footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;
    padding:64px 0 40px;
  }
  .footer-brand .logo{margin-bottom:16px;}
  .footer-brand p{font-size:14px;color:var(--muted);max-width:340px;}
  .footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{font-size:14px;color:var(--muted);transition:color .18s ease;}
  .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--mint);}
  .footer-col p{font-size:13.5px;color:var(--dim);line-height:1.8;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
    padding:20px 0 28px;border-top:1px solid var(--line);
  }
  .footer-bottom p{font-size:12.5px;color:var(--dim);}
  .footer-bottom span{color:var(--muted);}

  /* ============ Responsive ============ */
  @media (max-width:1279px){
    .hero-inner{grid-template-columns:8fr 4fr;gap:36px;}
    .hero h1{font-size:38px;}
  }
  @media (max-width:1023px){
    .container{padding:0 24px;}
    .main-nav{display:none;}
    .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
    .hero-inner{grid-template-columns:1fr;padding:64px 0 60px;}
    .hero-copy{max-width:100%;}
    .hero h1{font-size:34px;}
    .tier-grid{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:1fr;}
    .split{grid-template-columns:1fr;gap:32px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
    .section{padding:72px 0;}
  }
  @media (max-width:767px){
    body{font-size:15.5px;}
    .container{padding:0 20px;}
    .header-inner{height:60px;gap:14px;}
    .logo-text{font-size:18px;}
    .header-actions .btn{display:none;}
    .hero h1{font-size:29px;}
    .hero-lead{font-size:15px;}
    .hero-actions .btn{flex:1 1 auto;}
    .section{padding:56px 0;}
    .section-title{font-size:23px;}
    .tier-grid{grid-template-columns:1fr;}
    .stats-strip{grid-template-columns:1fr;gap:18px;padding:22px;}
    .stat-num{font-size:28px;}
    .task-row{grid-template-columns:1fr;gap:14px;padding:18px 20px;}
    .task-progress{width:100%;}
    .task-row .btn{width:100%;}
    .task-row .tag{align-self:flex-start;}
    .panel-head{padding:18px 20px;}
    .faq-item summary{padding:16px 18px;font-size:15px;}
    .faq-answer{padding:0 18px 18px;font-size:14.5px;}
    .cta-box{padding:38px 22px;}
    .cta-box h2{font-size:24px;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }