/* roulang page: index */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1220;
  --bg-2:#101A2B;
  --brand:#12E0B8;
  --brand-2:#0FA6D8;
  --accent:#FFA23A;
  --line:#2C3A4E;
  --steel:#2B4C7E;
  --text-1:#E8F1F5;
  --text-2:#93A6B5;
  --text-3:#5F7284;
  --glass:rgba(255,255,255,.04);
  --glass-strong:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.10);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-sm:0 4px 12px rgba(0,0,0,.30);
  --sh-md:0 12px 28px rgba(0,0,0,.40);
  --sh-lg:0 18px 40px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(18,224,184,.28);
  --glow-accent:0 0 24px rgba(255,162,58,.26);
  --sec-gap:112px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 10% -8%, rgba(18,224,184,.10), transparent 62%),
    radial-gradient(820px 480px at 98% 6%, rgba(255,162,58,.09), transparent 60%),
    linear-gradient(180deg,#070C14 0%,#0B1220 48%,#101A2B 100%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:58px 58px;
  opacity:.06;
}
main,header.site-nav,footer.site-footer{position:relative;z-index:1;}
img{max-width:100%;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;color:var(--text-1);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(18,224,184,.28);color:#fff;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 通用按钮 ---------- */
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;
  border:0;border-radius:var(--r-sm);
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04131A;font-size:15px;font-weight:700;letter-spacing:.02em;
  cursor:pointer;
  box-shadow:0 8px 22px rgba(15,166,216,.22);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-solid:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:var(--glow),0 12px 28px rgba(0,0,0,.36);color:#04131A;}
.btn-solid:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;
  border-radius:999px;
  border:1px solid var(--glass-line);
  background:var(--glass);
  color:var(--text-1);font-size:15px;font-weight:600;
  backdrop-filter:blur(14px) saturate(140%);
  cursor:pointer;
  transition:border-color .22s ease,color .22s ease,transform .22s ease,background .22s ease;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);background:rgba(18,224,184,.06);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;min-height:44px;
}
.btn-link-arrow span{transition:transform .22s ease;}
.btn-link-arrow:hover span{transform:translateX(4px);}

/* ---------- 玻璃与卡片基础 ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-md);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-lg), inset 0 1px 0 rgba(255,255,255,.08);
}
.badge-pill{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(18,224,184,.12);
  color:var(--brand);
  border:1px solid rgba(18,224,184,.28);
}
.badge-pill.is-accent{
  background:rgba(255,162,58,.12);
  color:var(--accent);
  border-color:rgba(255,162,58,.32);
}

/* ---------- 导航 ---------- */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:72px;
  background:rgba(7,12,20,.34);
  border-bottom:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(16px) saturate(150%);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease,height .25s ease;
}
.site-nav .nav-inner{
  height:100%;display:flex;align-items:center;gap:24px;
}
.nav-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:18px;height:18px;flex:0 0 auto;
  transform:rotate(45deg);
  border:1.5px solid var(--brand);
  border-radius:4px;
  box-shadow:0 0 14px rgba(18,224,184,.55), inset 0 0 8px rgba(18,224,184,.30);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:4px;border-radius:2px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  opacity:.85;
}
.logo-text{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:14px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--text-2);
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 10px rgba(18,224,184,.65);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--glass-line);
  background:var(--glass);
  color:var(--text-2);cursor:pointer;
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.nav-search:hover{color:var(--brand);border-color:rgba(18,224,184,.5);background:rgba(18,224,184,.06);}
.nav-cta{min-height:44px;padding:0 20px;font-size:14px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04131A;font-weight:700;display:inline-flex;align-items:center;box-shadow:0 6px 18px rgba(15,166,216,.24);transition:transform .22s ease,filter .22s ease;}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.06);color:#04131A;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--glass-line);background:var(--glass);
  padding:0;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.site-nav.is-open .nav-toggle span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.site-nav.is-open .nav-toggle span:nth-child(2){opacity:0;}
.site-nav.is-open .nav-toggle span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}
.site-nav.nav-sticky{
  height:64px;
  background:rgba(7,12,20,.90);
  border-bottom-color:rgba(18,224,184,.24);
  box-shadow:0 12px 34px rgba(0,0,0,.48);
}
.nav-drawer{
  display:none;
  border-top:1px solid var(--glass-line);
  background:rgba(8,14,24,.97);
  backdrop-filter:blur(18px) saturate(150%);
  padding:12px 0 20px;
}
.nav-drawer a{
  display:flex;align-items:center;min-height:48px;
  padding:0 24px;font-size:15px;font-weight:600;color:var(--text-1);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.nav-drawer a.active{color:var(--brand);}

/* ---------- Hero ---------- */
.kv-hero{
  position:relative;
  margin-top:0;
  padding:150px 0 84px;
  overflow:hidden;
  isolation:isolate;
}
.kv-hero__bg{
  position:absolute;inset:0;z-index:-1;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.42;
}
.kv-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,12,20,.72) 0%,rgba(7,12,20,.80) 55%,rgba(7,12,20,.96) 100%);
}
.kv-hero__scan{
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,224,184,.7),transparent);
  animation:scan 4.6s linear infinite;
  pointer-events:none;
}
@keyframes scan{
  0%{transform:translateY(0);opacity:0;}
  12%{opacity:.8;}
  88%{opacity:.8;}
  100%{transform:translateY(620px);opacity:0;}
}
.kv-hero__grid{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:56px;align-items:center;
}
.kv-hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:20px;
}
.kv-hero__eyebrow::before{
  content:"";width:26px;height:1px;background:var(--brand);box-shadow:0 0 8px rgba(18,224,184,.8);
}
.kv-hero h1{
  font-size:clamp(30px,5vw,52px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.kv-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.kv-hero__sub{
  font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px;
}
.kv-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.kv-hero__stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--glass-line);
  border-bottom:1px solid var(--glass-line);
  padding:18px 0;
}
.kv-hero__stat{padding:0 18px;border-left:1px solid rgba(255,255,255,.07);}
.kv-hero__stat:first-child{border-left:0;padding-left:0;}
.kv-hero__stat b{display:block;font-size:24px;font-weight:800;color:var(--brand);line-height:1.2;}
.kv-hero__stat span{font-size:13px;color:var(--text-3);}
.kv-hero__visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--sh-lg);}
.kv-hero__visual img{width:100%;height:380px;object-fit:cover;}
.kv-hero__visual figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:20px 22px;
  background:linear-gradient(180deg,transparent,rgba(7,12,20,.94));
  font-size:14px;color:var(--text-2);
}

/* ---------- 板块通用 ---------- */
.sec{padding:var(--sec-gap) 0;}
.sec-head{margin-bottom:44px;}
.sec-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700;margin-bottom:14px;}
.sec-head p{color:var(--text-2);max-width:720px;font-size:16px;}
.sec-head--center{text-align:center;}
.sec-head--center p{margin:0 auto;}

/* ---------- 介绍区 ---------- */
.sec-intro__grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.hud-card{
  position:relative;
  padding:28px 26px 26px 34px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-md), inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.hud-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  box-shadow:0 0 14px rgba(18,224,184,.6);
}
.hud-card:nth-child(2n){transform:translateY(26px);}
.hud-card:nth-child(2n):hover{transform:translateY(22px);}
.hud-card:hover{border-color:rgba(18,224,184,.35);box-shadow:var(--sh-lg), 0 0 0 1px rgba(18,224,184,.12);}
.hud-card__no{
  position:absolute;top:16px;right:18px;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--brand);opacity:.72;
  padding:2px 8px;border-radius:4px;
  background:rgba(18,224,184,.10);
}
.hud-card h3{font-size:20px;margin-bottom:10px;}
.hud-card p{font-size:15px;color:var(--text-2);}
.hud-card ul{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 权益横向卡列 ---------- */
.sec-reward__rail{
  display:flex;gap:20px;overflow-x:auto;
  padding:6px 24px 26px;
  margin:0 -24px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
}
.sec-reward__rail::-webkit-scrollbar{display:none;}
.reward-card{
  flex:0 0 calc((100% - 60px) / 3.5);
  scroll-snap-align:start;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-md);
  transition:transform .25s ease,border-color .25s ease;
}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(18,224,184,.34);}
.reward-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.reward-card__media img{width:100%;height:100%;object-fit:cover;}
.reward-card__tag{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,162,58,.16);color:var(--accent);
  border:1px solid rgba(255,162,58,.38);
  backdrop-filter:blur(8px);
}
.reward-card__body{padding:20px 22px 24px;}
.reward-card__body h3{font-size:18px;margin-bottom:8px;}
.reward-card__body p{font-size:14px;color:var(--text-2);}

/* ---------- 任务进度 ---------- */
.sec-quest__panel{
  display:grid;grid-template-columns:minmax(0,1fr) 208px;
  gap:44px;align-items:center;
  padding:40px 40px 44px;
  border-radius:var(--r-lg);
  background:var(--glass-strong);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-lg), inset 0 1px 0 rgba(255,255,255,.08);
}
.quest-bar{margin-bottom:34px;}
.quest-bar__meta{display:flex;justify-content:space-between;font-size:14px;color:var(--text-2);margin-bottom:10px;}
.quest-bar__meta b{color:var(--accent);font-weight:700;}
.bar-track{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.bar-fill{
  height:100%;width:68%;border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 16px rgba(18,224,184,.55);
}
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(18,224,184,.6),rgba(44,58,78,.4));
}
.timeline li{position:relative;padding:0 0 26px 0;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-26px;top:8px;
  width:12px;height:12px;border-radius:50%;
  background:var(--text-3);border:2px solid var(--bg-1);
}
.timeline li.done::before{background:var(--brand);box-shadow:0 0 12px rgba(18,224,184,.8);}
.timeline li.now::before{background:var(--accent);box-shadow:0 0 12px rgba(255,162,58,.8);}
.timeline h4{font-size:16px;font-weight:700;margin-bottom:4px;}
.timeline p{font-size:14px;color:var(--text-2);}
.quest-ring{display:flex;flex-direction:column;align-items:center;gap:14px;}
.ring{
  width:120px;height:120px;border-radius:50%;
  background:conic-gradient(var(--brand) 0turn, var(--brand-2) .68turn, rgba(255,255,255,.08) .68turn 1turn);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--glow);
}
.ring__inner{
  width:92px;height:92px;border-radius:50%;
  background:#0A111C;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.ring__inner b{font-size:24px;font-weight:800;color:var(--text-1);line-height:1.1;}
.ring__inner span{font-size:12px;color:var(--text-3);}
.quest-ring p{font-size:13px;color:var(--text-2);text-align:center;}

/* ---------- CTA 条 ---------- */
.sec-cta__box{
  position:relative;
  text-align:center;
  padding:56px 32px;
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(18,224,184,.10),rgba(15,166,216,.06) 55%,rgba(255,162,58,.08));
  border:1px solid rgba(18,224,184,.34);
  box-shadow:var(--glow), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
}
.sec-cta__box h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:14px;}
.sec-cta__box p{color:var(--text-2);max-width:640px;margin:0 auto 28px;}

/* ---------- 最新信息 ---------- */
.filter-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.filter-pills span{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:999px;font-size:14px;font-weight:600;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--glass-line);
}
.filter-pills span.on{
  color:var(--brand);border-color:rgba(18,224,184,.42);
  background:rgba(18,224,184,.10);
}
.cms-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.info-card{
  height:100%;display:flex;flex-direction:column;
  border-radius:var(--r-md);overflow:hidden;
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-md), inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(18,224,184,.32);box-shadow:var(--sh-lg);}
.info-card__media{display:block;aspect-ratio:16/9;overflow:hidden;}
.info-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.info-card:hover .info-card__media img{transform:scale(1.04);}
.info-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.info-card__title{font-size:18px;line-height:1.4;}
.info-card__title a{color:var(--text-1);}
.info-card__title a:hover{color:var(--brand);}
.info-card__desc{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card__meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
  padding-top:14px;border-top:1px solid rgba(255,255,255,.07);
}
.empty-state{
  min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  text-align:center;
  border-radius:var(--r-md);
  border:1px dashed rgba(255,255,255,.16);
  background:var(--glass);
  padding:34px 20px;
}
.empty-state svg{opacity:.6;}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-sm);
}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:16px;font-weight:600;
  padding:20px 56px 20px 22px;
  box-shadow:none;
  border:0;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:rgba(18,224,184,.05);}
.faq-acc .accordion-button::after{
  content:"";position:absolute;right:22px;
  width:16px;height:16px;
  background:none;
  border-right:1.6px solid var(--text-2);
  border-bottom:1.6px solid var(--text-2);
  transform:rotate(45deg);
  transition:transform .28s ease,border-color .28s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
  border-color:var(--brand);
}
.faq-acc .accordion-button:focus{box-shadow:none;border:0;}
.faq-acc .accordion-body{
  padding:0 22px 22px;
  color:var(--text-2);font-size:15px;line-height:1.85;
  border-top:1px solid rgba(255,255,255,.06);
  padding-top:18px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  border-top:1px solid rgba(18,224,184,.22);
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(7,12,20,.98));
  box-shadow:0 -14px 40px rgba(0,0,0,.42);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;padding:64px 0 42px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text{font-size:16px;}
.site-footer h4{font-size:14px;letter-spacing:.06em;color:var(--text-1);margin-bottom:16px;font-weight:700;}
.site-footer p{font-size:14px;color:var(--text-2);}
.site-footer li{margin-bottom:10px;}
.site-footer a{font-size:14px;color:var(--text-2);}
.site-footer a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding:20px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec-gap:96px;}
  .kv-hero__grid{gap:40px;}
}
@media (max-width:991px){
  :root{--sec-gap:76px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .site-nav.is-open .nav-drawer{display:block;}
  .site-nav.is-open{background:rgba(8,14,24,.97);height:auto;padding-bottom:0;}
  .site-nav.is-open .nav-inner{height:64px;}
  .kv-hero{padding:118px 0 66px;}
  .kv-hero__grid{grid-template-columns:minmax(0,1fr);}
  .kv-hero__visual img{height:300px;}
  .sec-intro__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hud-card:nth-child(2n){transform:none;}
  .hud-card:nth-child(2n):hover{transform:translateY(-4px);}
  .sec-quest__panel{grid-template-columns:minmax(0,1fr);gap:34px;}
  .quest-ring{flex-direction:row;justify-content:flex-start;gap:20px;}
  .cms-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .reward-card{flex:0 0 calc((100% - 40px) / 2.2);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:52px 0 34px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  :root{--sec-gap:60px;}
  .site-nav{height:60px;}
  .logo-text{font-size:15px;}
  .kv-hero{padding:104px 0 56px;}
  .kv-hero__stats{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:16px;}
  .kv-hero__stat:nth-child(3){border-left:0;padding-left:0;}
  .kv-hero__stat{padding:0 12px;}
  .sec-intro__grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .sec-quest__panel{padding:28px 22px 32px;}
  .sec-cta__box{padding:40px 20px;}
  .cms-list{grid-template-columns:minmax(0,1fr);}
  .reward-card{flex:0 0 78%;}
  .sec-reward__rail{margin:0 -16px;padding:4px 16px 22px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .faq-acc .accordion-button{font-size:15px;padding:18px 52px 18px 20px;}
}
@media (max-width:520px){
  .kv-hero__actions{flex-direction:column;align-items:stretch;}
  .kv-hero__actions .btn-solid,.kv-hero__actions .btn-ghost{width:100%;}
  .ring{width:104px;height:104px;}
  .ring__inner{width:80px;height:80px;}
  .quest-ring{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --bg-0:#070C14;--bg-1:#0B1220;--bg-2:#101A2B;
  --brand:#12E0B8;--brand-2:#0FA6D8;--accent:#FFA23A;
  --line:#2C3A4E;--steel:#2B4C7E;
  --text-1:#E8F1F5;--text-2:#93A6B5;--text-3:#5F7284;
  --glass:rgba(255,255,255,0.04);
  --glass-line:rgba(255,255,255,0.10);
  --r-lg:20px;--r-md:16px;--r-sm:12px;
  --sh-sm:0 4px 12px rgba(0,0,0,.30);
  --sh-md:0 12px 28px rgba(0,0,0,.40);
  --sh-glow:0 0 24px rgba(18,224,184,.28);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.8;
  color:var(--text-1);
  background:
    radial-gradient(900px 520px at 88% -6%,rgba(18,224,184,.10),transparent 62%),
    radial-gradient(760px 460px at 4% 22%,rgba(255,162,58,.09),transparent 60%),
    linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 46%,var(--bg-2) 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
}
img{max-width:100%;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);font-weight:700;line-height:1.28;}
p{margin:0 0 16px;}
ul,ol{margin:0 0 16px;padding-left:1.15em;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.2px;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease,filter .25s ease;
}
.btn-main{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#05201C;box-shadow:0 10px 26px rgba(15,166,216,.22);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-glow);filter:brightness(1.06);color:#05201C;}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--glass-line);color:var(--text-1);
  backdrop-filter:blur(12px) saturate(140%);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;min-height:44px;}
.btn-link-arrow span.ar{transition:transform .2s ease;display:inline-block;}
.btn-link-arrow:hover span.ar{transform:translateX(4px);}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.6;
  background:rgba(18,224,184,.12);color:var(--brand);border:1px solid rgba(18,224,184,.32);
}
.badge-accent{background:rgba(255,162,58,.13);color:var(--accent);border-color:rgba(255,162,58,.34);}

/* ---------- nav ---------- */
.site-nav{
  position:absolute;top:0;left:0;right:0;z-index:60;height:72px;
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(7,12,20,.62),rgba(7,12,20,.16));
  border-bottom:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(140%);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease,height .25s ease,position .25s ease;
}
.site-nav.nav-sticky{
  position:fixed;height:68px;
  background:rgba(8,14,24,.92);
  border-bottom:1px solid rgba(18,224,184,.22);
  box-shadow:0 14px 34px rgba(0,0,0,.55);
}
.nav-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:20px;height:20px;flex:0 0 20px;
  border:1.5px solid var(--brand);border-radius:4px;
  transform:rotate(45deg);
  box-shadow:0 0 14px rgba(18,224,184,.45),inset 0 0 8px rgba(18,224,184,.35);
  background:rgba(18,224,184,.10);
}
.logo-text{font-size:18px;font-weight:800;letter-spacing:.6px;color:var(--text-1);}
.brand:hover .logo-text{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1 1 auto;}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:10px;min-height:44px;display:inline-flex;align-items:center;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;box-shadow:0 0 10px rgba(18,224,184,.7);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-icon{
  width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--glass-line);background:rgba(255,255,255,.04);color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.nav-icon:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.nav-icon svg{width:18px;height:18px;}
.nav-cta{min-height:44px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-line);
  background:rgba(255,255,255,.05);color:var(--text-1);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}
.nav-drawer{
  display:none;position:fixed;left:16px;right:16px;top:76px;z-index:59;
  padding:12px;border-radius:var(--r-lg);
  background:rgba(9,15,26,.96);border:1px solid var(--glass-line);
  box-shadow:var(--sh-md);backdrop-filter:blur(16px) saturate(140%);
}
.nav-drawer.open{display:block;}
.nav-drawer a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;font-size:15px;color:var(--text-2);}
.nav-drawer a:hover,.nav-drawer a.active{background:rgba(18,224,184,.10);color:var(--brand);}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  padding:104px 0 0;
}
.breadcrumb-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
}
.breadcrumb-inner a{color:var(--text-2);}
.breadcrumb-inner a:hover{color:var(--brand);}
.breadcrumb-inner .sep{opacity:.6;}

/* ---------- article hero ---------- */
.article-hero{margin-top:22px;}
.article-hero-inner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-md);
  min-height:220px;max-height:240px;
  display:flex;align-items:center;
  background:
    linear-gradient(100deg,rgba(7,12,20,.90) 0%,rgba(7,12,20,.74) 52%,rgba(7,12,20,.58) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.article-hero-inner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,224,184,.65),transparent);
}
.article-hero-body{position:relative;z-index:2;padding:28px;width:100%;}
.article-hero-body h1{
  font-size:clamp(26px,3.6vw,40px);font-weight:800;line-height:1.25;
  margin:14px 0 12px;max-width:820px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--text-2);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;}

/* ---------- layout ---------- */
.article-layout{padding:56px 0 96px;}
.row-gap{--bs-gutter-x:32px;}
.panel{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-md);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 18px 40px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
}

/* ---------- article body ---------- */
.article-card{padding:32px;border-radius:var(--r-lg);}
.article-body{max-width:72ch;color:#D5E3EA;font-size:16px;line-height:1.9;}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(22px,2.6vw,28px);margin:40px 0 16px;padding-left:14px;position:relative;line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));box-shadow:0 0 14px rgba(18,224,184,.6);
}
.article-body h3{font-size:20px;margin:30px 0 12px;color:var(--text-1);}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--text-1);}
.article-body p{margin:0 0 18px;color:#CBDAE2;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.3em;}
.article-body li{margin-bottom:10px;color:#CBDAE2;}
.article-body li::marker{color:var(--brand);}
.article-body a{color:var(--brand);border-bottom:1px dashed rgba(18,224,184,.45);}
.article-body a:hover{color:var(--brand-2);}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--accent);
  background:rgba(255,162,58,.07);border-radius:12px;color:#E4D9C7;
}
.article-body img{border-radius:var(--r-md);border:1px solid var(--glass-line);margin:22px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:rgba(18,224,184,.08);color:var(--brand);font-weight:600;}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(18,224,184,.5),transparent);margin:32px 0;}
.article-body strong{color:#fff;}
.divider-line{height:1px;background:linear-gradient(90deg,transparent,rgba(44,58,78,.9),transparent);margin:28px 0;}

/* ---------- empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  min-height:240px;text-align:center;padding:36px 20px;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(18,224,184,.4);background:rgba(18,224,184,.08);color:var(--brand);
}
.empty-state .empty-icon svg{width:26px;height:26px;}
.empty-state p{color:var(--text-2);margin:0;}

/* ---------- sidebar ---------- */
.side-reco{padding:26px;border-radius:var(--r-lg);}
.side-reco h2{font-size:18px;margin-bottom:6px;}
.side-reco .side-sub{font-size:13px;color:var(--text-3);margin-bottom:18px;}
.side-list{list-style:none;margin:0 0 20px;padding:0;}
.side-list li{padding:12px 0;border-bottom:1px dashed rgba(44,58,78,.8);}
.side-list li:last-child{border-bottom:0;}
.side-list a{display:block;font-size:15px;color:var(--text-1);font-weight:500;margin-bottom:4px;}
.side-list a:hover{color:var(--brand);}
.side-list span{font-size:13px;color:var(--text-3);}
.side-facts{display:grid;gap:10px;margin:0 0 20px;}
.side-fact{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.035);border:1px solid var(--glass-line);
  font-size:13px;color:var(--text-2);
}
.side-fact b{color:var(--text-1);font-weight:700;}

/* ---------- related ---------- */
.sec-related{padding:0 0 96px;}
.sec-head{margin-bottom:30px;}
.sec-head .eyebrow{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand);text-transform:uppercase;}
.sec-head h2{font-size:clamp(24px,3.2vw,34px);margin-top:10px;}
.sec-head p{color:var(--text-2);font-size:15px;margin:10px 0 0;max-width:640px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 18px 40px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(18,224,184,.3);box-shadow:var(--sh-md);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A101C;border-bottom:1px solid var(--glass-line);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17px;line-height:1.45;}
.rel-body p{font-size:14px;color:var(--text-2);margin:0;}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-top:auto;}

/* ---------- cta ---------- */
.sec-cta{padding:0 0 96px;}
.cta-box{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid rgba(18,224,184,.35);
  background:linear-gradient(135deg,rgba(18,224,184,.10),rgba(15,166,216,.06) 55%,rgba(255,162,58,.07));
  box-shadow:0 18px 40px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
  padding:46px 32px;text-align:center;
}
.cta-box h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px;}
.cta-box p{color:var(--text-2);max-width:640px;margin:0 auto 24px;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:0;padding:64px 0 28px;
  border-top:1px solid transparent;
  background:linear-gradient(180deg,rgba(7,12,20,.2),rgba(7,12,20,.85));
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,224,184,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-mark{width:18px;height:18px;flex:0 0 18px;}
.footer-brand .logo-text{font-size:17px;font-weight:800;}
.site-footer p{font-size:14px;color:var(--text-2);max-width:340px;margin:0;}
.site-footer h4{font-size:14px;color:var(--text-1);margin-bottom:14px;letter-spacing:.4px;}
.site-footer ul{list-style:none;margin:0;padding:0;}
.site-footer li{margin-bottom:10px;}
.site-footer li a{font-size:14px;color:var(--text-2);}
.site-footer li a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(44,58,78,.7);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{max-width:1040px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .breadcrumb-bar{padding-top:96px;}
  .article-hero-inner{min-height:200px;max-height:none;}
  .article-card{padding:26px 22px;}
  .article-layout{padding:44px 0 72px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .sec-related,.sec-cta{padding-bottom:72px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:767.98px){
  .site-nav{height:60px;}
  .site-nav.nav-sticky{height:60px;}
  .nav-inner{padding:0 16px;gap:12px;}
  .logo-text{font-size:16px;}
  .container{padding:0 16px;}
  .breadcrumb-bar{padding-top:84px;}
  .article-hero-body{padding:22px 18px;}
  .article-hero-inner{min-height:auto;}
  .article-meta{gap:8px 14px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-box{padding:34px 20px;}
  .site-footer{padding:48px 0 22px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .article-card{padding:22px 16px;}
  .side-reco{padding:20px 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1220;
  --bg-2:#101A2B;
  --brand:#12E0B8;
  --brand-2:#0FA6D8;
  --accent:#FFA23A;
  --steel:#2B4C7E;
  --line:#2C3A4E;
  --text-1:#E8F1F5;
  --text-2:#93A6B5;
  --text-3:#5F7284;
  --glass:rgba(255,255,255,.04);
  --glass-line:rgba(255,255,255,.10);
  --glass-hi:inset 0 1px 0 rgba(255,255,255,.08);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-sm:0 4px 12px rgba(0,0,0,.30);
  --sh-md:0 12px 28px rgba(0,0,0,.40);
  --sh-lg:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 24px rgba(18,224,184,.28);
  --nav-h:72px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(920px 460px at 10% -10%, rgba(18,224,184,.10), transparent 62%),
    radial-gradient(760px 420px at 94% 4%, rgba(255,162,58,.09), transparent 60%),
    linear-gradient(180deg,#070C14 0%,#0B1220 46%,#070C14 100%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.34;
}
img{max-width:100%;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand);}
button,input{font-family:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:.2px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(18,224,184,.28);color:#04120E;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
main{position:relative;z-index:1;}
section{position:relative;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  transition:box-shadow .25s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(180deg,rgba(7,12,20,.74) 0%,rgba(7,12,20,.34) 66%,rgba(7,12,20,0) 100%);
  backdrop-filter:blur(10px) saturate(130%);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.nav-sticky::after{
  background:rgba(7,12,20,.9);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(18,224,184,.24);
  box-shadow:0 14px 32px rgba(0,0,0,.48);
}
.site-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:var(--nav-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  min-height:44px;
  color:var(--text-1);
  font-size:19px;
  font-weight:800;
  letter-spacing:.4px;
}
.brand:hover{color:var(--text-1);}
.logo-mark{
  width:18px;height:18px;
  border:2px solid var(--brand);
  border-radius:3px;
  transform:rotate(45deg);
  box-shadow:0 0 14px rgba(18,224,184,.62), inset 0 0 8px rgba(18,224,184,.36);
  flex:0 0 auto;
}
.brand .logo-text{white-space:nowrap;}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(18,224,184,.7);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{transform:scaleX(1);}
.nav-tools{
  display:flex;
  align-items:center;
  gap:12px;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);
  color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(18,224,184,.5);}
.icon-btn:active{transform:scale(.96);}
.icon-btn svg{width:19px;height:19px;}

/* 按钮 */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 28px;
  border:0;
  border-radius:999px;
  font-size:16px;
  font-weight:700;
  color:#04211B;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 26px rgba(18,224,184,.22);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-glow),0 14px 30px rgba(0,0,0,.4);filter:brightness(1.06);color:#04211B;}
.btn-main:active{transform:translateY(1px);}
.btn-main.sm{min-height:44px;padding:0 22px;font-size:15px;}
.btn-glass{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:999px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);
  color:var(--text-1);
  font-size:16px;
  font-weight:600;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-glass:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.35);}
.btn-glass:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
  padding:0 4px;
  color:var(--brand);
  font-weight:600;
  font-size:15px;
}
.btn-ghost .arrow{transition:transform .22s ease;}
.btn-ghost:hover .arrow{transform:translateX(4px);}

.nav-burger{display:none;}
.nav-drawer{
  display:none;
  position:fixed;
  top:var(--nav-h);left:0;right:0;
  z-index:1025;
  padding:16px 24px 24px;
  background:rgba(7,12,20,.96);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(18,224,184,.2);
  box-shadow:0 20px 42px rgba(0,0,0,.55);
}
.nav-drawer.open{display:block;}
.nav-drawer .nav-link{
  display:block;
  width:100%;
  padding:14px 16px;
  font-size:16px;
  border:1px solid transparent;
}
.nav-drawer .nav-link.active{
  border-color:rgba(18,224,184,.32);
  background:rgba(18,224,184,.08);
  color:var(--brand);
}
.nav-drawer .nav-link::after{display:none;}
.nav-drawer .btn-main{margin-top:14px;width:100%;}

/* ============ 分类页小 KV ============ */
.cat-a-hero{
  position:relative;
  padding:calc(var(--nav-h) + 54px) 0 56px;
  min-height:280px;
  overflow:hidden;
  isolation:isolate;
}
.cat-a-hero-bg{
  position:absolute;
  inset:0;
  z-index:-2;
}
.cat-a-hero-bg img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 32%;
}
.cat-a-hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg,rgba(7,12,20,.72) 0%,rgba(9,15,26,.66) 55%,rgba(7,12,20,.94) 100%),
    radial-gradient(640px 320px at 18% 40%, rgba(18,224,184,.16), transparent 70%),
    radial-gradient(520px 300px at 86% 20%, rgba(255,162,58,.10), transparent 70%);
}
.cat-a-hero .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:18px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(18,224,184,.3);
  background:rgba(18,224,184,.10);
  color:var(--brand);
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.4px;
}
.cat-a-hero .eyebrow .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(18,224,184,.9);
}
.cat-a-hero h1{
  font-size:clamp(30px,5vw,48px);
  line-height:1.18;
  font-weight:800;
  max-width:840px;
  margin-bottom:18px;
}
.cat-a-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cat-a-hero .lead{
  max-width:640px;
  font-size:16.5px;
  color:var(--text-2);
  margin-bottom:28px;
}
.cat-a-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.cat-a-hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  margin-top:32px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13.5px;
  color:var(--text-3);
}
.cat-a-hero-meta strong{
  display:block;
  font-size:20px;
  font-weight:700;
  color:var(--text-1);
  font-variant-numeric:tabular-nums;
}

/* 面包屑 */
.breadcrumb-bar{
  position:relative;
  z-index:1;
  padding:18px 0;
  border-bottom:1px solid rgba(255,255,255,.06);
  background:rgba(8,13,22,.6);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.breadcrumb-bar ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0;
  padding:0;
  list-style:none;
  font-size:13.5px;
  color:var(--text-3);
}
.breadcrumb-bar li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb-bar li+li::before{content:"/";color:var(--text-3);}
.breadcrumb-bar a{color:var(--text-2);}
.breadcrumb-bar .current{color:var(--brand);}

/* ============ 通用板块 ============ */
.sec{padding:72px 0;}
.sec-tight{padding:56px 0;}
.sec-head{max-width:720px;margin-bottom:38px;}
.sec-head h2{
  font-size:clamp(24px,3.2vw,34px);
  line-height:1.25;
  margin-bottom:14px;
}
.sec-head p{color:var(--text-2);font-size:16px;}
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(18,224,184,.28);
  background:rgba(18,224,184,.10);
  color:var(--brand);
  font-size:12.5px;
  font-weight:600;
}
.tag-pill.accent{
  border-color:rgba(255,162,58,.34);
  background:rgba(255,162,58,.12);
  color:var(--accent);
}
.glass-card{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-lg),var(--glass-hi);
  padding:28px;
}

/* 分类说明卡 */
.cat-a-intro .intro-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:34px;
  align-items:center;
}
.cat-a-intro h2{font-size:clamp(22px,2.6vw,30px);margin:14px 0 16px;}
.cat-a-intro p{color:var(--text-2);font-size:15.8px;}
.cat-a-intro .intro-list{margin-top:20px;display:grid;gap:12px;}
.cat-a-intro .intro-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text-2);
}
.cat-a-intro .intro-list li::before{
  content:"";
  flex:0 0 auto;
  width:7px;height:7px;
  margin-top:11px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(18,224,184,.8);
}
.cat-a-intro .intro-figure{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  aspect-ratio:16/11;
  box-shadow:var(--sh-md);
}
.cat-a-intro .intro-figure img{
  width:100%;height:100%;object-fit:cover;
}
.cat-a-intro .intro-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,20,.06),rgba(7,12,20,.62));
}
.cat-a-intro .figure-badge{
  position:absolute;
  left:16px;bottom:16px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(7,12,20,.72);
  border:1px solid rgba(18,224,184,.34);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  backdrop-filter:blur(8px);
}

/* 要点竖线列表 */
.cat-a-points{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.cat-a-point{
  position:relative;
  padding:24px 26px 24px 34px;
  border-radius:var(--r-md);
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.035);
  backdrop-filter:blur(12px) saturate(135%);
  -webkit-backdrop-filter:blur(12px) saturate(135%);
  box-shadow:var(--sh-md),var(--glass-hi);
  transition:transform .22s ease,border-color .22s ease;
}
.cat-a-point::before{
  content:"";
  position:absolute;
  left:0;top:20px;bottom:20px;
  width:3px;
  border-radius:999px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  box-shadow:0 0 16px rgba(18,224,184,.55);
}
.cat-a-point:hover{
  transform:translateY(-4px);
  border-color:rgba(18,224,184,.34);
}
.cat-a-point .num{
  display:block;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.cat-a-point h3{font-size:19px;margin-bottom:10px;}
.cat-a-point p{font-size:15px;color:var(--text-2);}

/* 查询表单 */
.cat-a-query .query-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:center;
}
.cat-a-query h2{font-size:clamp(22px,2.6vw,30px);margin:14px 0 16px;}
.cat-a-query p{color:var(--text-2);font-size:15.6px;}
.query-form{
  display:grid;
  gap:14px;
  padding:24px;
  border-radius:var(--r-md);
  border:1px solid var(--glass-line);
  background:rgba(11,18,32,.6);
  box-shadow:var(--sh-md);
}
.query-form label{
  display:block;
  font-size:13.5px;
  color:var(--text-2);
  margin-bottom:8px;
}
.query-form .form-row{display:grid;gap:6px;}
.query-form input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.query-form input::placeholder{color:var(--text-3);}
.query-form input:focus{
  outline:none;
  border-color:var(--brand);
  background:rgba(18,224,184,.06);
  box-shadow:0 0 0 3px rgba(18,224,184,.16);
}
.query-form .hint{
  font-size:13px;
  color:var(--text-3);
  margin:0;
}
.query-form .btn-main{width:100%;}

/* FAQ */
.cat-a-faq .accordion-item{
  border:1px solid var(--glass-line);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.035);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-sm),var(--glass-hi);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease,transform .22s ease;
}
.cat-a-faq .accordion-item:hover{border-color:rgba(18,224,184,.28);}
.cat-a-faq .accordion-button{
  width:100%;
  padding:20px 56px 20px 24px;
  background:transparent;
  border:0;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  text-align:left;
  box-shadow:none !important;
  position:relative;
}
.cat-a-faq .accordion-button:not(.collapsed){
  color:var(--brand);
  background:rgba(18,224,184,.06);
}
.cat-a-faq .accordion-button::after{
  content:"";
  position:absolute;
  right:22px;
  top:50%;
  width:16px;height:16px;
  margin:0;
  transform:translateY(-50%) rotate(0deg);
  background:
    linear-gradient(var(--brand),var(--brand)) center/100% 2px no-repeat,
    linear-gradient(var(--brand),var(--brand)) center/2px 100% no-repeat;
  transition:transform .3s ease;
}
.cat-a-faq .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
}
.cat-a-faq .accordion-body{
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
}

/* 相关入口 */
.cat-a-related .rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-md);
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.035);
  overflow:hidden;
  backdrop-filter:blur(12px) saturate(135%);
  -webkit-backdrop-filter:blur(12px) saturate(135%);
  box-shadow:var(--sh-md),var(--glass-hi);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,224,184,.34);
  box-shadow:var(--sh-md),0 0 22px rgba(18,224,184,.18);
}
.rel-card .rel-figure{
  aspect-ratio:16/9;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.rel-card .rel-figure img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.rel-card:hover .rel-figure img{transform:scale(1.05);}
.rel-card .rel-body{padding:20px 22px 24px;}
.rel-card h3{font-size:18px;margin:12px 0 10px;}
.rel-card p{font-size:14.6px;color:var(--text-2);margin-bottom:14px;}

/* CTA 条 */
.cat-a-cta .cta-box{
  position:relative;
  text-align:center;
  padding:52px 32px;
  border-radius:var(--r-lg);
  border:1px solid rgba(18,224,184,.28);
  background:
    radial-gradient(560px 260px at 50% 0%, rgba(18,224,184,.14), transparent 70%),
    rgba(255,255,255,.035);
  box-shadow:0 0 34px rgba(18,224,184,.16), var(--sh-lg), var(--glass-hi);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.cat-a-cta h2{
  font-size:clamp(22px,2.8vw,30px);
  margin-bottom:14px;
}
.cat-a-cta p{
  max-width:620px;
  margin:0 auto 26px;
  color:var(--text-2);
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:40px;
  padding:64px 0 26px;
  background:rgba(7,12,20,.72);
  border-top:1px solid rgba(18,224,184,.22);
  box-shadow:0 -1px 22px rgba(18,224,184,.12);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
  font-size:18px;
  font-weight:800;
  color:var(--text-1);
}
.site-footer p{
  color:var(--text-2);
  font-size:14.5px;
  max-width:340px;
}
.site-footer h4{
  font-size:14px;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:.6px;
}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{
  font-size:14px;
  color:var(--text-2);
}
.site-footer ul a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13.5px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:1000px;}
  .cat-a-related .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:991px){
  :root{--nav-h:64px;}
  .sec{padding:64px 0;}
  .sec-tight{padding:52px 0;}
  .nav-links{display:none;}
  .nav-burger{display:inline-flex;}
  .cat-a-intro .intro-grid{grid-template-columns:1fr;gap:26px;}
  .cat-a-points{grid-template-columns:1fr;}
  .cat-a-query .query-grid{grid-template-columns:1fr;gap:24px;}
  .cat-a-related .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--nav-h:60px;}
  .container{padding-left:16px;padding-right:16px;}
  .sec{padding:56px 0;}
  .cat-a-hero{padding:calc(var(--nav-h) + 40px) 0 44px;}
  .cat-a-hero-actions .btn-main,
  .cat-a-hero-actions .btn-glass{width:100%;}
  .glass-card{padding:22px;}
  .cat-a-related .rel-grid{grid-template-columns:1fr;}
  .cat-a-cta .cta-box{padding:38px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .nav-tools .btn-main{display:none;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .brand{font-size:17px;}
  .cat-a-hero h1{font-size:28px;}
  .cat-a-hero-meta{gap:14px 20px;}
  .cat-a-hero-meta strong{font-size:18px;}
  .cat-a-point{padding:20px 20px 20px 28px;}
  .cat-a-faq .accordion-button{font-size:16px;padding:18px 50px 18px 18px;}
  .cat-a-faq .accordion-body{padding:0 18px 20px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1220;
  --bg-2:#101A2B;
  --brand:#12E0B8;
  --brand-2:#0FA6D8;
  --accent:#FFA23A;
  --line:#2C3A4E;
  --steel:#2B4C7E;
  --text-1:#E8F1F5;
  --text-2:#93A6B5;
  --text-3:#5F7284;
  --glass:rgba(255,255,255,.04);
  --glass-2:rgba(255,255,255,.07);
  --glass-line:rgba(255,255,255,.10);
  --brand-soft:rgba(18,224,184,.12);
  --accent-soft:rgba(255,162,58,.14);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-sm:0 4px 12px rgba(0,0,0,.30);
  --sh-md:0 12px 28px rgba(0,0,0,.40);
  --sh-glass:0 18px 40px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(18,224,184,.28);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --sec-y:110px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(18,224,184,.10), transparent 62%),
    radial-gradient(760px 480px at 92% 6%, rgba(255,162,58,.08), transparent 60%),
    linear-gradient(180deg,var(--bg-0) 0%, var(--bg-1) 46%, var(--bg-0) 100%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:68px 68px;
  opacity:.55;
  mask-image:radial-gradient(circle at 50% 20%, #000 40%, transparent 88%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%, #000 40%, transparent 88%);
}
img{max-width:100%;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover,a:focus{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.2px;}
p{margin:0 0 14px;color:var(--text-2);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px !important;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.nums{font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-nav{
  position:absolute;
  top:0;left:0;right:0;
  z-index:60;
  height:72px;
  display:flex;
  align-items:center;
  background:rgba(9,15,25,.42);
  border-bottom:1px solid rgba(255,255,255,.07);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease,height .25s ease;
}
.site-nav.nav-sticky{
  position:fixed;
  background:rgba(7,12,20,.94);
  border-bottom-color:rgba(18,224,184,.28);
  box-shadow:0 14px 34px rgba(0,0,0,.55), 0 1px 0 rgba(18,224,184,.16) inset;
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:var(--text-1);
  white-space:nowrap;
}
.brand:hover{color:var(--text-1);}
.logo-mark{
  width:16px;height:16px;
  border:2px solid var(--brand);
  border-radius:4px;
  transform:rotate(45deg);
  box-shadow:var(--glow);
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin:0 auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-sm);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
  box-shadow:0 0 12px rgba(18,224,184,.55);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--glass-line);
  border-radius:var(--r-sm);
  color:var(--text-2);
  cursor:pointer;
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(18,224,184,.45);background:rgba(18,224,184,.08);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--glass-line);
  border-radius:var(--r-sm);
  color:var(--text-1);
  cursor:pointer;
}
.mobile-panel{
  display:none;
  position:absolute;
  top:100%;left:0;right:0;
  padding:14px 24px 20px;
  background:rgba(7,12,20,.97);
  border-bottom:1px solid rgba(18,224,184,.24);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 22px 40px rgba(0,0,0,.55);
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 12px;
  border-radius:var(--r-sm);
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-panel a.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease,filter .25s ease;
}
.btn-brand{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04211C;
  box-shadow:0 8px 22px rgba(18,224,184,.22);
}
.btn-brand:hover,.btn-brand:focus{
  color:#04211C;
  transform:translateY(-2px);
  box-shadow:var(--glow),0 12px 26px rgba(0,0,0,.4);
  filter:brightness(1.06);
}
.btn-brand:active{transform:translateY(1px);}
.btn-glass{
  background:rgba(255,255,255,.05);
  border-color:var(--glass-line);
  color:var(--text-1);
  backdrop-filter:blur(10px);
}
.btn-glass:hover,.btn-glass:focus{
  color:var(--brand);
  border-color:rgba(18,224,184,.55);
  background:rgba(18,224,184,.08);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  border:none;
  padding:0;
  min-height:44px;
  color:var(--text-2);
  border-radius:8px;
}
.btn-ghost i{transition:transform .25s ease;}
.btn-ghost:hover{color:var(--brand);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-nav{padding:0 20px;min-height:44px;font-size:14px;}

/* ============ 通用 ============ */
main{position:relative;z-index:1;}
.sec{padding:var(--sec-y) 0;}
.sec-tight{padding:72px 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  margin-bottom:16px;
  font-size:13px;
  letter-spacing:.6px;
  color:var(--brand);
  background:var(--brand-soft);
  border:1px solid rgba(18,224,184,.28);
  border-radius:999px;
}
.sec-label.accent{
  color:var(--accent);
  background:var(--accent-soft);
  border-color:rgba(255,162,58,.30);
}
.sec-title{font-size:clamp(24px,3.2vw,34px);margin-bottom:14px;}
.sec-desc{font-size:16px;color:var(--text-2);margin:0;}
.glass-card{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}

/* ============ 分类页 Hero ============ */
.cat-b-hero{
  position:relative;
  min-height:290px;
  display:flex;
  align-items:flex-end;
  padding:118px 0 46px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-b-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center 34%;
  transform:scale(1.02);
}
.cat-b-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(7,12,20,.86) 0%, rgba(7,12,20,.72) 46%, rgba(7,12,20,.95) 100%);
}
.cat-b-hero .container{position:relative;z-index:2;}
.cat-b-hero h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.2;
  margin:16px 0 12px;
  max-width:860px;
}
.cat-b-hero p{
  max-width:720px;
  font-size:16px;
  color:var(--text-2);
  margin:0;
}
.crumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:6px;
}
.crumb-line a{color:var(--text-3);}
.crumb-line a:hover{color:var(--brand);}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  font-size:13px;
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--glass-line);
  border-radius:999px;
}
.tag-pill i{color:var(--brand);font-size:12px;}
.tag-pill.accent{color:var(--accent);border-color:rgba(255,162,58,.28);background:var(--accent-soft);}
.tag-pill.accent i{color:var(--accent);}

/* ============ 左右分栏介绍 ============ */
.cat-b-split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  align-items:center;
}
.split-copy h2{font-size:clamp(24px,3.2vw,32px);margin-bottom:16px;}
.split-copy p{font-size:16px;color:var(--text-2);}
.split-list{margin-top:26px;display:grid;gap:14px;}
.split-list li{
  display:flex;
  gap:14px;
  padding:16px 18px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.07);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.split-list li:hover{
  border-color:rgba(18,224,184,.35);
  background:rgba(18,224,184,.06);
  transform:translateX(4px);
}
.split-list i{
  color:var(--brand);
  font-size:15px;
  margin-top:6px;
  flex:none;
}
.split-list strong{display:block;font-size:15px;color:var(--text-1);font-weight:600;margin-bottom:4px;}
.split-list span{font-size:14px;color:var(--text-2);line-height:1.7;}
.split-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-glass);
  background:rgba(255,255,255,.04);
}
.split-visual img{
  width:100%;
  aspect-ratio:4/3;
  height:100%;
  object-fit:cover;
  filter:saturate(1.05) contrast(1.03);
}
.split-visual .float-note{
  position:absolute;
  left:18px;right:18px;bottom:18px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 18px;
  border-radius:var(--r-sm);
  background:rgba(7,12,20,.82);
  border:1px solid rgba(18,224,184,.28);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.split-visual .ring{
  width:56px;height:56px;
  flex:none;
  border-radius:50%;
  background:conic-gradient(var(--accent) 0 74%, rgba(255,255,255,.08) 74% 100%);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.split-visual .ring span{
  width:42px;height:42px;
  border-radius:50%;
  background:#0A1220;
  display:flex;align-items:center;justify-content:center;
}
.split-visual .float-note strong{display:block;font-size:15px;color:var(--text-1);}
.split-visual .float-note small{font-size:13px;color:var(--text-2);}

/* ============ 2×2 图文块 ============ */
.cat-b-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.cat-b-card{
  display:grid;
  grid-template-columns:130px 1fr;
  gap:20px;
  padding:20px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.cat-b-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,224,184,.34);
  box-shadow:0 22px 44px rgba(0,0,0,.5),0 0 22px rgba(18,224,184,.14);
}
.cat-b-card .thumb{
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  background:#0C1626;
}
.cat-b-card .thumb img{
  width:100%;
  height:100%;
  min-height:118px;
  aspect-ratio:1/1;
  object-fit:cover;
}
.cat-b-card h3{
  font-size:19px;
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:10px;
}
.cat-b-card h3 em{
  font-style:normal;
  font-size:12px;
  font-weight:700;
  color:var(--accent);
  background:var(--accent-soft);
  border:1px solid rgba(255,162,58,.30);
  border-radius:4px;
  padding:2px 7px;
  font-variant-numeric:tabular-nums;
}
.cat-b-card p{font-size:14px;line-height:1.75;margin:0;}

/* ============ 横向步骤条 ============ */
.cat-b-steps{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:12px;
}
.cat-b-steps::before{
  content:"";
  position:absolute;
  top:30px;
  left:10%;
  right:10%;
  height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2),var(--accent));
  opacity:.34;
}
.step-node{
  position:relative;
  z-index:2;
  text-align:center;
  padding:0 8px;
}
.step-dot{
  width:60px;height:60px;
  margin:0 auto 16px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  font-weight:800;
  color:var(--brand);
  background:rgba(11,18,32,.96);
  border:1px solid rgba(18,224,184,.38);
  box-shadow:0 0 18px rgba(18,224,184,.18);
  font-variant-numeric:tabular-nums;
  transition:transform .28s ease,box-shadow .28s ease;
}
.step-node:hover .step-dot{
  transform:translateY(-4px);
  box-shadow:var(--glow);
}
.step-node h3{font-size:16px;margin-bottom:8px;}
.step-node p{font-size:13px;line-height:1.7;margin:0;color:var(--text-2);}
.step-node.done .step-dot{
  color:#04211C;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border-color:transparent;
}
.step-node.pending .step-dot{
  color:var(--accent);
  border-color:rgba(255,162,58,.42);
  box-shadow:0 0 18px rgba(255,162,58,.18);
}

/* ============ FAQ ============ */
.cat-b-faq .accordion-item{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-sm);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.cat-b-faq .accordion-item:hover{border-color:rgba(18,224,184,.32);}
.cat-b-faq .accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:16px;
  font-weight:600;
  padding:20px 56px 20px 22px;
  box-shadow:none !important;
  border:none;
}
.cat-b-faq .accordion-button:not(.collapsed){
  color:var(--brand);
  background:rgba(18,224,184,.06);
}
.cat-b-faq .accordion-button:focus{box-shadow:none !important;}
.cat-b-faq .accordion-button::after{
  content:"+";
  background-image:none !important;
  font-size:24px;
  font-weight:400;
  line-height:1;
  color:var(--accent);
  width:auto;height:auto;
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%) rotate(0deg);
  transition:transform .28s ease,color .28s ease;
}
.cat-b-faq .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  color:var(--brand);
}
.cat-b-faq .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
  border-top:1px solid rgba(255,255,255,.06);
  padding-top:16px;
}

/* ============ CTA ============ */
.cat-b-cta{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(18,224,184,.32);
  box-shadow:var(--glow),var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
  padding:56px 32px;
  text-align:center;
}
.cat-b-cta::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  opacity:.30;
}
.cat-b-cta::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,20,.80),rgba(7,12,20,.92));
}
.cat-b-cta > *{position:relative;z-index:2;}
.cat-b-cta h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px;}
.cat-b-cta p{max-width:620px;margin:0 auto 26px;font-size:15px;}
.cat-b-cta .btn-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
}

/* ============ 相关入口卡 ============ */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-glass),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  color:var(--text-2);
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,224,184,.34);
  box-shadow:0 22px 44px rgba(0,0,0,.5),0 0 22px rgba(18,224,184,.14);
  color:var(--text-2);
}
.entry-card .ico{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-sm);
  background:var(--brand-soft);
  border:1px solid rgba(18,224,184,.28);
  color:var(--brand);
  font-size:17px;
}
.entry-card h3{font-size:18px;color:var(--text-1);}
.entry-card p{font-size:14px;line-height:1.75;margin:0;flex:1;}
.entry-card .go{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--brand);
  font-weight:600;
}
.entry-card .go i{transition:transform .25s ease;}
.entry-card:hover .go i{transform:translateX(4px);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:40px;
  padding:64px 0 26px;
  background:linear-gradient(180deg,rgba(7,12,20,.2),rgba(7,12,20,.92));
  border-top:1px solid rgba(18,224,184,.24);
  box-shadow:inset 0 1px 0 rgba(18,224,184,.12);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand .logo-text{font-size:17px;font-weight:800;color:var(--text-1);}
.site-footer p{font-size:14px;line-height:1.8;color:var(--text-2);margin:0;}
.site-footer h4{
  font-size:14px;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:.4px;
}
.site-footer ul{display:grid;gap:10px;}
.site-footer ul a{
  font-size:14px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  min-height:28px;
}
.site-footer ul a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sec-y:92px;}
  .cat-b-card{grid-template-columns:110px 1fr;gap:16px;}
}
@media (max-width:991px){
  :root{--sec-y:76px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .cat-b-split{grid-template-columns:1fr;gap:30px;}
  .cat-b-grid{grid-template-columns:1fr;}
  .cat-b-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
  .cat-b-steps::before{display:none;}
  .entry-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  .site-nav{height:60px;}
  .brand{font-size:16px;}
  .btn-nav{display:none;}
  .cat-b-hero{min-height:0;padding:96px 0 38px;}
  .cat-b-hero h1{font-size:clamp(24px,6.4vw,32px);}
  .sec{padding:56px 0;}
  .sec-head{margin-bottom:32px;}
  .cat-b-cta{padding:40px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .cat-b-card{grid-template-columns:1fr;}
  .cat-b-card .thumb img{aspect-ratio:16/9;min-height:0;}
  .cat-b-steps{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .cat-b-cta .btn-row{flex-direction:column;}
  .hero-tags .tag-pill{font-size:12px;}
}