/* roulang page: index */
:root{
  --bg-0:#060E10;
  --bg-1:#0B1518;
  --surface:#102127;
  --surface-2:#142A31;
  --line:rgba(160,232,220,.12);
  --line-strong:rgba(160,232,220,.24);
  --brand:#1FD8A4;
  --brand-deep:#0E7F63;
  --accent:#FFB020;
  --text:#EAF3F1;
  --text-2:#A6BCBC;
  --text-3:#6F8A8C;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5), 0 0 0 1px var(--line);
  --glow:0 0 0 1px rgba(31,216,164,.5), 0 0 22px rgba(31,216,164,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:88px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
ul,ol{list-style:none}
::selection{background:rgba(31,216,164,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--gap-section) 0}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0 0;
  background:linear-gradient(180deg,rgba(6,14,16,.92),rgba(6,14,16,.55) 70%,transparent);
  backdrop-filter:blur(10px);
}
.nav-shell{
  display:flex;align-items:center;gap:18px;
  min-height:68px;padding:10px 18px;
  background:rgba(16,33,39,.82);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  position:relative;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 18px rgba(31,216,164,.32);
  flex-shrink:0;
}
.logo-mark::before{
  content:"";position:absolute;left:8px;top:8px;width:18px;height:2px;
  background:#04140F;transform:rotate(-32deg);border-radius:2px;
}
.logo-mark::after{
  content:"";position:absolute;right:7px;bottom:7px;width:7px;height:7px;
  border-radius:50%;background:#04140F;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;flex-wrap:nowrap}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 12px;border-radius:var(--r-btn);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
  position:relative;
}
.nav-card i{font-size:14px;color:var(--text-3);transition:color .2s var(--ease)}
.nav-card:hover{background:var(--surface-2);color:var(--text);box-shadow:var(--glow)}
.nav-card:hover i{color:var(--brand)}
.nav-card.is-active{color:var(--text);background:var(--surface-2)}
.nav-card.is-active i{color:var(--brand)}
.nav-card.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);color:var(--text);
  align-items:center;justify-content:center;font-size:16px;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mobile-drawer{
  display:none;
  margin-top:10px;padding:16px;
  background:rgba(16,33,39,.96);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  backdrop-filter:blur(16px) saturate(120%);
}
.mobile-drawer.open{display:block;animation:slideDown .24s var(--ease)}
@keyframes slideDown{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.drawer-grid .nav-card{height:44px;justify-content:flex-start;background:var(--surface);border:1px solid var(--line);width:100%}
.drawer-grid .nav-card.is-active{border-color:var(--line-strong)}
.drawer-cta{width:100%}

/* ---------- 按钮与通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#22E7B0,#12A98A);
  color:#04140F;
  box-shadow:0 6px 18px rgba(31,216,164,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.92)}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;
}
.link-more i{font-size:12px;transition:transform .2s var(--ease)}
.link-more:hover i{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(31,216,164,.14);color:var(--brand);white-space:nowrap;
}
.badge-accent{background:rgba(255,176,32,.16);color:var(--accent)}
.card{
  background:rgba(16,33,39,.62);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  position:relative;
  overflow:hidden;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  background:rgba(20,42,49,.72);
  box-shadow:var(--sh-2);
}
.card-line::before{
  content:"";position:absolute;left:0;top:0;width:2px;height:46px;
  background:linear-gradient(180deg,var(--brand),transparent);
}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;
}
.section-title{
  position:relative;padding-left:16px;
  font-size:28px;font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--brand);border-radius:2px;
}
.section-desc{margin-top:8px;padding-left:16px;font-size:14px;color:var(--text-3);max-width:620px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:76vh;
  display:flex;align-items:center;
  padding:56px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-color:var(--bg-1);
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,14,16,.55) 0%,rgba(6,14,16,.35) 38%,rgba(6,14,16,.94) 100%),
    linear-gradient(90deg,rgba(6,14,16,.92) 0%,rgba(6,14,16,.62) 46%,rgba(6,14,16,.12) 78%);
}
.hero-inner{position:relative;z-index:2;max-width:660px}
.hero-meta{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--accent);letter-spacing:.04em;
  background:rgba(255,176,32,.1);
  border:1px solid rgba(255,176,32,.22);
  border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:20px;
}
.hero-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}
.hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.15;font-weight:700;letter-spacing:-.02em;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{
  font-size:17px;color:var(--text-2);line-height:1.8;
  max-width:520px;margin-bottom:14px;
}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-points span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text-2);
  background:rgba(16,33,39,.6);
  border:1px solid var(--line);
  border-radius:var(--r-pill);padding:5px 13px;
}
.hero-points i{color:var(--brand);font-size:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-actions .hint{font-size:12.5px;color:var(--text-3)}
.scroll-hint{
  position:absolute;right:40px;bottom:44px;z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:11px;color:var(--text-3);letter-spacing:.16em;
  writing-mode:vertical-rl;
}
.scroll-hint::after{
  content:"";width:8px;height:8px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 14px var(--brand);
  animation:floatDot 2.4s var(--ease) infinite;
}
@keyframes floatDot{
  0%,100%{transform:translateY(0);opacity:.55}
  50%{transform:translateY(12px);opacity:1}
}

/* ---------- 数据条 ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-top:-44px;position:relative;z-index:5;
  box-shadow:var(--sh-2);
}
.stat-cell{background:var(--bg-1);padding:22px 24px}
.stat-label{font-size:13px;color:var(--text-3);margin-bottom:6px}
.stat-value{font-size:26px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat-value span{font-size:13px;font-weight:500;color:var(--text-3);margin-left:4px;letter-spacing:0}

/* ---------- 横滑片库 ---------- */
.rail-viewport{position:relative}
.rail{
  display:flex;gap:16px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scroll-behavior:smooth;
  padding:4px 2px 18px;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:3px}
.rail-card{
  flex:0 0 240px;width:240px;height:340px;
  scroll-snap-align:start;
  position:relative;border-radius:var(--r-card);
  overflow:hidden;border:1px solid var(--line);
  background:var(--surface);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.rail-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease),opacity .4s var(--ease)}
.rail-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,14,16,.05) 30%,rgba(6,14,16,.9) 100%);
}
.rail-card .rail-title{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  font-size:16px;font-weight:700;line-height:1.45;
}
.rail-card .rail-tag{
  position:absolute;left:16px;top:16px;z-index:2;
  font-size:11px;padding:3px 10px;border-radius:var(--r-pill);
  background:rgba(255,176,32,.2);color:var(--accent);
  border:1px solid rgba(255,176,32,.3);
}
.rail-card .rail-desc{
  position:absolute;left:16px;right:16px;bottom:56px;z-index:2;
  font-size:12.5px;color:var(--text-2);
}
.rail-card:hover{transform:translateY(-6px);box-shadow:var(--glow),var(--sh-2);border-color:var(--line-strong)}
.rail-card:hover img{transform:scale(1.06)}
.rail-btn{
  position:absolute;top:50%;transform:translateY(-50%);z-index:6;
  width:40px;height:40px;border-radius:50%;
  background:rgba(6,14,16,.72);
  border:1px solid var(--line-strong);
  color:var(--text);display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(8px);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.rail-btn:hover{background:var(--brand);color:#04140F;border-color:var(--brand)}
.rail-btn.prev{left:-8px}
.rail-btn.next{right:-8px}

/* ---------- 双拼：推荐 + 最新信息 ---------- */
.duo-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px;align-items:start}
.feature-card{padding:0;overflow:hidden}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-media .badge{position:absolute;left:18px;top:18px}
.feature-body{padding:24px}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.45;margin-bottom:12px}
.feature-body p{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:18px}
.feature-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-3);
}
.news-panel{padding:22px}
.news-panel-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;margin-bottom:8px;border-bottom:1px solid var(--line);
}
.news-panel-head h3{font-size:17px;font-weight:700}
.news-list{display:flex;flex-direction:column}
.news-item{
  display:block;padding:14px 0;
  border-bottom:1px dashed var(--line);
  transition:padding-left .2s var(--ease);
}
.news-item:last-child{border-bottom:none}
.news-item:hover{padding-left:6px}
.news-item:hover .news-title{color:var(--brand)}
.news-title{
  font-size:15px;font-weight:600;line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  transition:color .2s var(--ease);
}
.news-desc{
  font-size:13px;color:var(--text-3);line-height:1.6;margin-top:4px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-foot{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:12px;color:var(--text-3)}
.news-foot .arrow{margin-left:auto;color:var(--brand)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:10px;
  padding:38px 16px;color:var(--text-3);font-size:14px;text-align:center;
}
.empty-state i{font-size:26px;color:var(--line-strong)}
.empty-state a{color:var(--brand);font-size:13px}

/* ---------- 分区 A 不对称网格 ---------- */
.grid-a{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:186px;gap:16px}
.grid-a .big{grid-column:span 2;grid-row:span 2}
.tile{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.tile img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:transform .5s var(--ease),opacity .3s var(--ease)}
.tile::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,14,16,.1) 25%,rgba(6,14,16,.92) 100%);
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.tile:hover img{transform:scale(1.05);opacity:1}
.tile-body{position:absolute;left:18px;right:18px;bottom:16px;z-index:2}
.tile-body h3{font-size:16px;font-weight:700;line-height:1.45;margin-bottom:6px}
.grid-a .big .tile-body h3{font-size:21px}
.tile-body p{font-size:13px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 分区 B 图文 + 矩阵 ---------- */
.split-b{display:grid;grid-template-columns:0.85fr 1.15fr;gap:32px;align-items:stretch}
.split-intro{display:flex;flex-direction:column;justify-content:center;gap:16px}
.split-intro h3{font-size:26px;font-weight:700;line-height:1.35}
.split-intro p{font-size:15px;color:var(--text-2);line-height:1.9}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.mini-card{padding:22px 20px;display:flex;flex-direction:column;gap:8px}
.mini-card .mini-icon{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,216,164,.12);color:var(--brand);font-size:15px;
  margin-bottom:4px;
}
.mini-card h4{font-size:16px;font-weight:700}
.mini-card p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.mini-card .link-more{font-size:13px;margin-top:auto}

/* ---------- 分区 C 时间轴 ---------- */
.timeline{display:flex;flex-direction:column;gap:14px}
.tl-item{
  display:flex;gap:20px;align-items:flex-start;
  padding:22px 24px;
}
.tl-num{
  flex-shrink:0;width:48px;height:48px;border-radius:50%;
  border:2px solid var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 16px rgba(31,216,164,.18);
}
.tl-body h3{font-size:18px;font-weight:700;margin-bottom:6px}
.tl-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.tl-body .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.tag{
  font-size:12px;color:var(--text-2);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:3px 11px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:rgba(31,216,164,.08)}
.tag.is-on{background:var(--brand);color:#04140F;border-color:var(--brand);font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:0.8fr 1.2fr;gap:40px;align-items:start}
.faq-side p{font-size:15px;color:var(--text-2);line-height:1.9;margin-bottom:20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:rgba(16,33,39,.62);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:4px 20px;
  backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .fx{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .25s var(--ease),background .2s var(--ease);
}
.faq-item[open] summary .fx{transform:rotate(180deg);background:rgba(31,216,164,.14)}
.faq-item .faq-a{padding:0 0 18px;font-size:14.5px;color:var(--text-2);line-height:1.85}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:24px;
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,216,164,.16),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:10px;position:relative}
.cta-band p{font-size:15px;color:var(--text-2);position:relative;max-width:460px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;position:relative}
.cta-actions .hint{font-size:12.5px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--gap-section);
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo-text{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:280px;margin-bottom:18px}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);color:var(--text-2);
  display:flex;align-items:center;justify-content:center;font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.socials a:hover{border-color:var(--brand);color:var(--brand);background:rgba(31,216,164,.08)}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:var(--text-3)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}
.footer-bottom .to-top{
  display:inline-flex;align-items:center;gap:7px;color:var(--text-2);
  transition:color .2s var(--ease);
}
.footer-bottom .to-top:hover{color:var(--brand)}
.skeleton{
  position:relative;overflow:hidden;background:var(--surface-2);
}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
  animation:shimmer 1.6s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
img{opacity:0;transition:opacity .2s var(--ease)}
img.loaded{opacity:1}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .grid-a{grid-auto-rows:170px}
}
@media (max-width:1023px){
  :root{--gap-section:72px}
  .nav-cards{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-sm{display:none}
  .duo-grid{grid-template-columns:1fr}
  .split-b{grid-template-columns:1fr;gap:24px}
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stats-strip{grid-template-columns:1fr 1fr}
  .rail-card{flex:0 0 210px;width:210px;height:300px}
  .hero{min-height:0;padding:48px 0 96px}
  .hero h1{font-size:34px}
  .scroll-hint{display:none}
}
@media (max-width:768px){
  .grid-a{grid-template-columns:repeat(2,1fr);grid-auto-rows:158px}
  .grid-a .big{grid-column:span 2;grid-row:span 1}
  .grid-a .big .tile-body h3{font-size:17px}
  .cta-band{padding:36px 24px}
  .cta-band h2{font-size:22px}
  .rail-btn{display:none}
  .section-title{font-size:23px}
}
@media (max-width:640px){
  :root{--gap-section:56px}
  .container{padding:0 16px}
  .nav-shell{padding:8px 12px;min-height:60px;gap:10px}
  .logo-main{font-size:14px}
  .logo-sub{display:none}
  .hero{padding:40px 0 88px}
  .hero h1{font-size:28px;line-height:1.25}
  .hero-sub{font-size:15px}
  .hero-actions{width:100%}
  .hero-actions .btn{flex:1 1 auto}
  .hero-meta{font-size:11.5px}
  .stats-strip{margin-top:-32px}
  .stat-cell{padding:16px}
  .stat-value{font-size:21px}
  .rail-card{flex:0 0 168px;width:168px;height:244px}
  .rail-card .rail-desc{display:none}
  .rail-card .rail-title{font-size:14px}
  .mini-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .feature-body{padding:18px}
  .feature-body h3{font-size:18px}
  .tl-item{padding:18px;gap:14px}
  .tl-num{width:40px;height:40px;font-size:13px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}

/* roulang page: article */
:root{
  --bg-0:#060E10;
  --bg-1:#0B1518;
  --surface:#102127;
  --surface-2:#142A31;
  --line:rgba(160,232,220,.12);
  --line-strong:rgba(160,232,220,.24);
  --brand:#1FD8A4;
  --brand-deep:#0E7F63;
  --accent:#FFB020;
  --text:#EAF3F1;
  --text-2:#A6BCBC;
  --text-3:#6F8A8C;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5), 0 0 0 1px var(--line);
  --glow:0 0 0 1px rgba(31,216,164,.5), 0 0 22px rgba(31,216,164,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-section:88px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:#5ff0c8;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-0.01em;}
p{margin:0 0 18px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:var(--glow);border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(6,14,16,.96),rgba(6,14,16,.72));
  backdrop-filter:blur(10px);
}
.header-card{
  display:flex;align-items:center;gap:18px;
  height:68px;padding:0 16px;
  background:rgba(16,33,39,.72);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,rgba(31,216,164,.22),rgba(31,216,164,.05));
  border:1px solid var(--line-strong);
  position:relative;overflow:hidden;flex-shrink:0;
}
.logo-mark::before{
  content:"";position:absolute;left:-6px;top:50%;
  width:46px;height:3px;background:var(--brand);
  transform:rotate(-32deg);transform-origin:center;
  box-shadow:0 0 12px rgba(31,216,164,.7);
}
.logo-mark::after{
  content:"";position:absolute;right:7px;bottom:7px;
  width:7px;height:7px;border-radius:50%;background:var(--accent);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-main{font-size:16px;font-weight:800;color:var(--text);letter-spacing:-0.01em;}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em;}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;flex-wrap:nowrap;}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 12px;border-radius:12px;
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.nav-card i{font-size:14px;color:var(--text-3);transition:color .2s var(--ease);}
.nav-card:hover{background:var(--surface-2);color:var(--text);box-shadow:var(--glow);}
.nav-card:hover i{color:var(--brand);}
.nav-card.is-active{color:var(--text);background:var(--surface-2);position:relative;}
.nav-card.is-active i{color:var(--brand);}
.nav-card.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--text);font-size:16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);box-shadow:var(--glow);}

/* 移动抽屉 */
.drawer{
  max-height:0;overflow:hidden;
  transition:max-height .24s var(--ease),opacity .24s var(--ease);
  opacity:0;margin-top:0;
}
.drawer.is-open{max-height:560px;opacity:1;margin-top:10px;}
.drawer-inner{
  background:rgba(16,33,39,.92);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:18px;padding:14px;
  display:grid;grid-template-columns:1fr 1fr;gap:8px;
  box-shadow:var(--sh-2);
}
.drawer-inner .nav-card{justify-content:flex-start;height:44px;border:1px solid var(--line);background:var(--surface);}
.drawer-cta{grid-column:1 / -1;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-primary{
  background:linear-gradient(135deg,#22E7B0,#12A98A);
  color:#04140F;
  box-shadow:0 6px 18px rgba(31,216,164,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow);color:#04140F;}
.btn-primary:active{transform:translateY(1px);filter:brightness(.92);}
.btn-ghost{
  background:transparent;border-color:var(--line-strong);color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow i{font-size:12px;transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:24px 0 0;}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb i{font-size:10px;color:var(--text-3);}
.breadcrumb .current{color:var(--text-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-hero{padding:26px 0 0;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(31,216,164,.14);color:var(--brand);
  border:1px solid rgba(31,216,164,.22);
}
.badge-accent{background:rgba(255,176,32,.16);color:var(--accent);border-color:rgba(255,176,32,.26);}
.article-title{
  font-size:clamp(30px,4vw,46px);
  line-height:1.18;letter-spacing:-0.02em;
  margin:18px 0 18px;max-width:940px;
}
.meta-row{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
  padding-bottom:26px;border-bottom:1px solid var(--line);
}
.meta-row span{display:inline-flex;align-items:center;gap:6px;}
.meta-row i{color:var(--brand);font-size:12px;}
.article-cover{
  margin:28px 0 0;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  aspect-ratio:16/7;background:var(--surface-2);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:48px;
  padding:48px 0 var(--sp-section);
}
.article-main{min-width:0;}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--text);
}
.article-body p{margin:0 0 20px;color:#DCEBE8;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);margin:40px 0 18px;
  padding-left:14px;border-left:4px solid var(--brand);
  color:var(--text);
}
.article-body h3{font-size:20px;margin:30px 0 14px;color:var(--text);}
.article-body h4{font-size:17px;margin:24px 0 12px;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:20px;margin-bottom:10px;color:#DCEBE8;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 8px rgba(31,216,164,.6);
}
.article-body ol{counter-reset:olc;}
.article-body ol li::before{
  counter-increment:olc;content:counter(olc);
  position:absolute;left:0;top:2px;
  width:8px;height:8px;background:none;box-shadow:none;
  font-size:13px;font-weight:700;color:var(--brand);
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--surface);border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);border:1px solid var(--line);margin:22px 0;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{color:#fff;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:22px 0;font-size:15px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
}
.article-body th{
  background:var(--surface-2);color:var(--text-2);
  font-weight:600;text-align:left;
  padding:12px 16px;border-bottom:1px solid var(--line);
  font-size:13px;letter-spacing:.02em;
}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);color:#DCEBE8;}
.article-body tr:last-child td{border-bottom:0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:var(--surface-2);
  padding:2px 7px;border-radius:6px;color:#8CF3D2;
  border:1px solid var(--line);
}
.article-body pre{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:10px;padding:16px 18px;overflow-x:auto;margin:22px 0;
}
.article-body pre code{background:none;border:0;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* 目录 */
.toc-card{
  display:none;
  background:rgba(16,33,39,.62);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.06);
}
.toc-card h3{font-size:14px;color:var(--text-2);letter-spacing:.06em;margin-bottom:14px;}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:block;font-size:13.5px;color:var(--text-3);
  padding:8px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:all .2s var(--ease);
}
.toc-list a:hover,.toc-list a.is-current{
  color:var(--brand);background:var(--surface-2);border-left-color:var(--brand);
}
.toc-note{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:12.5px;line-height:1.7;color:var(--text-3);
}

/* 空态 */
.empty-state{
  background:var(--surface);border:1px dashed var(--line-strong);
  border-radius:var(--r-card);padding:56px 24px;text-align:center;
  max-width:760px;
}
.empty-state i{font-size:34px;color:var(--text-3);margin-bottom:14px;display:block;}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px;}

/* ---------- 文末工具条 ---------- */
.article-foot{
  max-width:760px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12.5px;
  color:var(--text-2);background:var(--surface);border:1px solid var(--line);
  transition:all .2s var(--ease);
}
.tag:hover{color:var(--brand);border-color:var(--line-strong);background:var(--surface-2);}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--sp-section);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:18px;margin-bottom:28px;flex-wrap:wrap;
}
.section-title{
  font-size:clamp(22px,2.6vw,30px);
  padding-left:14px;border-left:4px solid var(--brand);
}
.section-desc{font-size:14px;color:var(--text-3);margin-top:8px;padding-left:14px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.related-card{
  display:flex;gap:14px;align-items:center;
  background:rgba(16,33,39,.62);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.related-card:hover{
  transform:translateY(-4px);border-color:var(--line-strong);
  box-shadow:var(--sh-2);background:rgba(20,42,49,.8);
}
.related-card img{
  width:96px;height:64px;flex-shrink:0;object-fit:cover;
  border-radius:10px;border:1px solid var(--line);
}
.related-card .rc-body{min-width:0;}
.related-card h4{
  font-size:14.5px;line-height:1.45;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:6px;
}
.related-card time{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-1);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-90px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,216,164,.16),transparent 70%);
  pointer-events:none;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:10px;}
.cta-inner p{color:var(--text-2);font-size:15px;margin:0;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.cta-hint{font-size:12.5px;color:var(--text-3);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand .logo-text{margin-bottom:14px;}
.footer-brand p{color:var(--text-2);font-size:14px;max-width:280px;}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);
  color:var(--text-2);font-size:14px;
  transition:all .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:var(--brand);box-shadow:var(--glow);transform:translateY(-2px);}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:13.5px;color:var(--text-3);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);font-size:13px;}
.to-top:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;align-items:start;}
  .toc-card{display:block;position:sticky;top:104px;}
}
@media (max-width:1180px){
  .nav-card{padding:0 10px;font-size:13px;}
  .brand .logo-sub{display:none;}
}
@media (max-width:1023px){
  :root{--sp-section:64px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .nav-cards{gap:3px;}
  .nav-card{font-size:12.5px;padding:0 8px;}
  .nav-card i{display:none;}
}
@media (max-width:900px){
  .nav-cards{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-card{height:64px;gap:12px;justify-content:space-between;}
  .header-actions .btn-sm{display:none;}
  .article-title{font-size:clamp(26px,6vw,34px);}
}
@media (max-width:640px){
  :root{--sp-section:48px;}
  .container{padding:0 16px;}
  .site-header{padding:10px 0;}
  .logo-main{font-size:14.5px;}
  .logo-sub{font-size:10px;}
  .article-layout{padding:32px 0 var(--sp-section);gap:32px;}
  .article-body{font-size:16px;}
  .article-body p{font-size:16px;}
  .article-cover{aspect-ratio:16/9;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding:52px 0;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .meta-row{gap:12px;font-size:12px;}
  .breadcrumb .current{max-width:180px;}
  .drawer-inner{grid-template-columns:1fr;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060E10;
  --bg-1:#0B1518;
  --surface:#102127;
  --surface-2:#142A31;
  --line:rgba(160,232,220,.12);
  --line-strong:rgba(160,232,220,.24);
  --brand:#1FD8A4;
  --brand-deep:#0E7F63;
  --accent:#FFB020;
  --text:#EAF3F1;
  --text-2:#A6BCBC;
  --text-3:#6F8A8C;
  --glass:rgba(16,33,39,.62);
  --glass-strong:rgba(16,33,39,.86);
  --brand-soft:rgba(31,216,164,.14);
  --brand-line:rgba(31,216,164,.5);
  --accent-soft:rgba(255,176,32,.16);
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5),0 0 0 1px var(--line);
  --glow:0 0 0 1px rgba(31,216,164,.5),0 0 22px rgba(31,216,164,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec-gap:88px;
  --scrim-side:linear-gradient(90deg,rgba(6,14,16,.94) 0%,rgba(6,14,16,.72) 42%,rgba(6,14,16,.28) 100%);
  --scrim-bottom:linear-gradient(180deg,rgba(6,14,16,.15) 0%,rgba(6,14,16,.55) 58%,rgba(6,14,16,.96) 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0;background:linear-gradient(180deg,rgba(6,14,16,.92),rgba(6,14,16,.55) 70%,rgba(6,14,16,0))}
.header-card{
  display:flex;align-items:center;gap:16px;
  background:var(--glass-strong);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:18px;
  padding:10px 14px;
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  position:relative;box-shadow:var(--glow);
}
.brand-mark::before{
  content:"";position:absolute;left:8px;top:10px;width:18px;height:3px;border-radius:2px;
  background:var(--bg-0);transform:rotate(-32deg);
}
.brand-mark::after{
  content:"";position:absolute;right:8px;bottom:9px;width:6px;height:6px;border-radius:50%;
  background:var(--bg-0);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-main{font-size:16px;font-weight:700;letter-spacing:-.01em}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em;margin-top:2px}
.nav-cards{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:wrap}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 12px;border-radius:var(--r-btn);
  font-size:14px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
  position:relative;
}
.nav-card i{font-size:15px;color:var(--text-3);transition:color .2s var(--ease)}
.nav-card:hover{background:var(--surface-2);color:var(--text);box-shadow:var(--glow)}
.nav-card:hover i{color:var(--brand)}
.nav-card.is-active{background:var(--brand-soft);color:var(--text);box-shadow:inset 0 -2px 0 var(--brand)}
.nav-card.is-active i{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);color:var(--text);font-size:16px;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--surface-2);border-color:var(--line-strong)}
.mobile-drawer{
  overflow:hidden;max-height:0;
  transition:max-height .24s var(--ease),opacity .24s var(--ease),margin .24s var(--ease);
  opacity:0;margin-top:0;
}
.mobile-drawer.open{max-height:560px;opacity:1;margin-top:10px}
.drawer-inner{
  background:var(--glass-strong);backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:18px;padding:14px;
  display:grid;grid-template-columns:1fr 1fr;gap:8px;
}
.drawer-inner .nav-card{height:46px;justify-content:flex-start;background:var(--surface);border:1px solid var(--line)}
.drawer-inner .btn{grid-column:1 / -1;margin-top:4px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#22E7B0,#12A98A);
  color:#04140F;box-shadow:0 6px 18px rgba(31,216,164,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow);color:#04140F}
.btn-primary:active{transform:translateY(1px);filter:brightness(.92)}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-more i{font-size:12px;transition:transform .2s var(--ease)}
.link-more:hover i{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{
  position:relative;margin-top:8px;border-radius:var(--r-card);overflow:hidden;
  min-height:280px;display:flex;align-items:flex-end;
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero::before{content:"";position:absolute;inset:0;z-index:1;background:var(--scrim-side)}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:var(--scrim-bottom)}
.hero-inner{position:relative;z-index:2;padding:38px 36px;max-width:760px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:14px;flex-wrap:wrap}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs i{font-size:10px}
.hero h1{font-size:42px;line-height:1.15;letter-spacing:-.02em;margin-bottom:12px}
.hero h1 span{color:var(--brand)}
.hero-sub{font-size:16px;color:var(--text-2);max-width:520px}
.hero-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:16px;font-size:12.5px;color:var(--accent);letter-spacing:.03em}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* ---------- sections ---------- */
.section{padding:var(--sec-gap) 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-title{font-size:30px;line-height:1.3;padding-left:16px;position:relative}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand);box-shadow:0 0 14px rgba(31,216,164,.5)}
.section-desc{font-size:15px;color:var(--text-3);margin-top:10px;padding-left:16px;max-width:620px}

/* ---------- quick cards ---------- */
.quick-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:20px;align-items:stretch}
.quick-card{
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.quick-card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:rgba(20,42,49,.72);box-shadow:var(--sh-2)}
.quick-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.quick-card h3{font-size:18px}
.quick-card p{font-size:14.5px;color:var(--text-2)}
.quick-card .link-more{margin-top:auto}

/* ---------- data rows ---------- */
.data-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
}
.data-panel h3{font-size:17px;margin-bottom:6px}
.data-panel .panel-note{font-size:13px;color:var(--text-3);margin-bottom:14px}
.data-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line)}
.data-row:last-child{border-bottom:0}
.data-row .k{font-size:14px;color:var(--text-3)}
.data-row .v{font-size:15px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}
.data-row .v.brand{color:var(--brand)}
.data-row .v.accent{color:var(--accent)}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--text-2);font-size:13.5px;
  background:transparent;transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#04140F;font-weight:700}
.chip i{font-size:12px}

/* ---------- tile grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tile{
  position:relative;display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.tile:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);background:rgba(20,42,49,.74)}
.tile-media{position:relative;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden}
.tile-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease);opacity:0;animation:fadeIn .5s var(--ease) forwards}
.tile:hover .tile-media img{transform:scale(1.04)}
.tile-media::after{
  content:"";position:absolute;left:0;top:0;width:78px;height:4px;
  background:linear-gradient(90deg,var(--brand),rgba(31,216,164,0));
  transform:skewX(-34deg) translateX(-8px);transform-origin:left top;
}
@keyframes fadeIn{to{opacity:1}}
.tile-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--brand);width:fit-content;
}
.badge.accent{background:var(--accent-soft);color:var(--accent)}
.tile-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tile-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tile-body .link-more{margin-top:auto;font-size:13.5px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 20px;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
.step-num{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--brand-line);color:var(--brand);font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;box-shadow:0 0 16px rgba(31,216,164,.16);
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2)}
.step::after{
  content:"";position:absolute;top:44px;right:-10px;width:20px;height:1px;
  background:var(--line-strong);
}
.step:last-child::after{display:none}

/* ---------- tips split ---------- */
.split{display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:start}
.split-intro{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.split-intro h3{font-size:22px;margin-bottom:12px}
.split-intro p{font-size:15px;color:var(--text-2);margin-bottom:14px}
.split-intro ul{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.split-intro li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2)}
.split-intro li i{color:var(--brand);font-size:13px;margin-top:7px}
.tip-list{display:flex;flex-direction:column;gap:14px}
.tip-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
}
.tip-item:hover{border-color:var(--line-strong);transform:translateY(-3px);background:rgba(20,42,49,.7)}
.tip-item .tip-ico{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent);font-size:15px;
}
.tip-item h4{font-size:16px;margin-bottom:6px}
.tip-item p{font-size:14px;color:var(--text-2)}
.tip-item code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--surface-2);border-radius:10px;padding:2px 8px;font-size:13px;color:var(--brand);
}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.open{border-color:var(--line-strong);background:rgba(20,42,49,.72)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:700;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q .mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;border:1px solid var(--line-strong);
  color:var(--brand);font-size:12px;transition:transform .3s var(--ease),background .2s var(--ease);
}
.faq-item.open .faq-q .mark{transform:rotate(180deg);background:var(--brand-soft)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- cta ---------- */
.cta-band{
  margin-top:var(--sec-gap);
  position:relative;overflow:hidden;
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,216,164,.12),rgba(31,216,164,0) 70%);
  pointer-events:none;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;z-index:1}
.cta-text h2{font-size:30px;margin-bottom:10px}
.cta-text p{font-size:15px;color:var(--text-2);max-width:460px}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-note{font-size:12.5px;color:var(--text-3)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .logo-text{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:280px;margin-bottom:18px}
.socials{display:flex;gap:10px}
.socials a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:all .2s var(--ease);
}
.socials a:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--glow);transform:translateY(-2px)}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 26px;font-size:13px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.to-top:hover{color:var(--brand)}
.to-top i{font-size:11px}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .quick-grid{grid-template-columns:1fr 1fr}
  .quick-grid .data-panel{grid-column:1 / -1}
}
@media (max-width:1023px){
  .nav-cards{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .hero h1{font-size:36px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .split{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  :root{--sec-gap:72px}
}
@media (max-width:900px){
  .header-actions .btn-primary{display:none}
  .header-card{padding:10px 12px;gap:10px}
  .logo-main{font-size:15px}
  .logo-sub{display:none}
}
@media (max-width:640px){
  :root{--sec-gap:56px}
  .container{padding:0 16px}
  .hero{min-height:300px}
  .hero-inner{padding:26px 20px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:14.5px}
  .hero-actions{width:100%}
  .hero-actions .btn{flex:1 1 auto}
  .section-title{font-size:23px;padding-left:12px}
  .section-desc{padding-left:12px;font-size:14px}
  .quick-grid{grid-template-columns:1fr;gap:16px}
  .grid-3{grid-template-columns:1fr;gap:16px}
  .steps{grid-template-columns:1fr;gap:14px}
  .drawer-inner{grid-template-columns:1fr 1fr}
  .cta-band{padding:48px 0}
  .cta-text h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#060E10;
  --bg-1:#0B1518;
  --surface:#102127;
  --surface-2:#142A31;
  --line:rgba(160,232,220,.12);
  --line-strong:rgba(160,232,220,.24);
  --brand:#1FD8A4;
  --brand-deep:#0E7F63;
  --accent:#FFB020;
  --text:#EAF3F1;
  --text-2:#A6BCBC;
  --text-3:#6F8A8C;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:14px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5), 0 0 0 1px var(--line);
  --glow:0 0 0 1px rgba(31,216,164,.5), 0 0 22px rgba(31,216,164,.35);
  --glass:rgba(16,33,39,.62);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:88px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
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:none;box-shadow:var(--glow);border-radius:8px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(6,14,16,.94),rgba(6,14,16,.72));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-shell{
  display:flex;align-items:center;gap:18px;
  min-height:68px;
  padding:10px 16px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  position:relative;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#22E7B0,#0E7F63);
  box-shadow:0 6px 16px rgba(31,216,164,.28);
  overflow:hidden;flex:0 0 auto;
}
.logo-mark::before{
  content:"";position:absolute;left:-6px;top:16px;width:46px;height:2px;
  background:rgba(4,20,15,.85);transform:rotate(-32deg);
}
.logo-mark::after{
  content:"";position:absolute;right:7px;top:7px;width:8px;height:8px;border-radius:50%;
  background:#04140F;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-main{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--text);}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em;}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;flex-wrap:wrap;}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 12px;
  border-radius:var(--r-btn);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  position:relative;white-space:nowrap;
}
.nav-card i{font-size:15px;color:var(--text-3);transition:color .2s var(--ease);}
.nav-card:hover{background:var(--surface-2);color:var(--text);box-shadow:var(--glow);}
.nav-card:hover i{color:var(--brand);}
.nav-card.is-active{color:var(--text);background:rgba(31,216,164,.08);border-color:var(--line-strong);}
.nav-card.is-active i{color:var(--brand);}
.nav-card.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;box-shadow:0 0 10px rgba(31,216,164,.6);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  background:var(--surface-2);border:1px solid var(--line);color:var(--text);
  font-size:16px;cursor:pointer;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:42px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,#22E7B0,#12A98A);
  color:#04140F;
  box-shadow:0 8px 20px rgba(31,216,164,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.92);}
.btn-ghost{
  background:transparent;border-color:var(--line-strong);color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-size:14px;font-weight:600;
  transition:gap .2s var(--ease),color .2s var(--ease);
}
.text-link i{transition:transform .2s var(--ease);}
.text-link:hover i{transform:translateX(3px);}

/* ---------- drawer ---------- */
.drawer{
  display:none;
  margin-top:10px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:18px;
  padding:16px;
  box-shadow:var(--sh-2);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  animation:slideDown .24s var(--ease);
}
.drawer.open{display:block;}
@keyframes slideDown{from{opacity:0;transform:translateY(-10px);}to{opacity:1;transform:translateY(0);}}
.drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:14px;}
.drawer-grid .nav-card{height:46px;justify-content:flex-start;background:var(--surface);border:1px solid var(--line);}
.drawer .btn{width:100%;}

/* ---------- hero mini ---------- */
.hero-mini{
  position:relative;margin-top:26px;
  border-radius:20px;overflow:hidden;
  min-height:260px;
  background:var(--bg-1) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border:1px solid var(--line);
  display:flex;align-items:center;
  box-shadow:var(--sh-1);
}
.hero-mini::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,14,16,.94) 0%,rgba(6,14,16,.82) 46%,rgba(6,14,16,.34) 100%);
}
.hero-mini::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,14,16,.2) 0%,rgba(6,14,16,.7) 100%);
}
.hero-inner{position:relative;z-index:2;padding:44px 48px;max-width:720px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:14px;}
.crumb a{color:var(--text-2);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:10px;}
.hero-inner h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.15;letter-spacing:-.02em;font-weight:700;
  margin-bottom:12px;
}
.hero-inner h1 em{font-style:normal;color:var(--brand);}
.hero-desc{font-size:16px;color:var(--text-2);max-width:560px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:16px;margin-top:20px;
  font-size:13px;color:var(--accent);
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}

/* ---------- sections ---------- */
.section{padding-top:var(--gap-section);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-title{
  position:relative;padding-left:14px;
  font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(31,216,164,.55);
}
.section-sub{color:var(--text-3);font-size:14px;margin-top:8px;padding-left:14px;}

/* ---------- stats ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-top:24px;
}
.stat-cell{
  background:var(--surface);
  padding:20px 22px;
  display:flex;flex-direction:column;gap:4px;
}
.stat-label{font-size:13px;color:var(--text-3);}
.stat-value{font-size:24px;font-weight:700;color:var(--text);letter-spacing:-.01em;}
.stat-value.accent{color:var(--accent);}

/* ---------- filters + cards ---------- */
.split{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:26px;
  align-items:start;
}
.filter-panel{
  position:sticky;top:118px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.filter-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.filter-title i{color:var(--brand);font-size:14px;}
.filter-group{margin-bottom:22px;}
.filter-group:last-child{margin-bottom:0;}
.filter-group h4{font-size:12px;color:var(--text-3);letter-spacing:.08em;margin-bottom:10px;font-weight:600;}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
  background:var(--surface-2);
  border:1px solid var(--line);
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{border-color:var(--line-strong);color:var(--text);transform:translateY(-1px);}
.chip.is-on{background:var(--brand);color:#04140F;border-color:var(--brand);font-weight:700;box-shadow:0 6px 16px rgba(31,216,164,.28);}
.filter-note{
  font-size:12px;color:var(--text-3);line-height:1.7;
  border-top:1px dashed var(--line);padding-top:14px;margin-top:16px;
}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.channel-card{
  position:relative;
  display:grid;
  grid-template-columns:156px minmax(0,1fr);
  gap:16px;
  padding:16px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  overflow:hidden;
}
.channel-card::before{
  content:"";position:absolute;left:0;top:0;width:2px;height:34px;
  background:linear-gradient(180deg,var(--brand),transparent);
  transform:skewX(-18deg);
}
.channel-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--sh-2);
  background:rgba(20,42,49,.72);
}
.channel-card.is-hidden{display:none;}
.card-thumb{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  background:var(--surface-2);
  aspect-ratio:4/3;
}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.channel-card:hover .card-thumb img{transform:scale(1.05);}
.card-body{display:flex;flex-direction:column;min-width:0;}
.card-top{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;
}
.badge-brand{background:rgba(31,216,164,.14);color:var(--brand);}
.badge-accent{background:rgba(255,176,32,.16);color:var(--accent);}
.badge-mute{background:rgba(166,188,188,.12);color:var(--text-2);}
.card-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-desc{font-size:13.5px;color:var(--text-2);line-height:1.7;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-stats{border-top:1px dashed var(--line);padding-top:8px;margin-top:auto;}
.mini-row{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;padding:3px 0;}
.mini-row span{color:var(--text-3);}
.mini-row b{color:var(--text);font-weight:700;}
.mini-row b.accent{color:var(--accent);}
.card-arrow{
  position:absolute;right:14px;bottom:14px;
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-3);font-size:11px;
  transition:all .2s var(--ease);
}
.channel-card:hover .card-arrow{border-color:var(--brand);color:var(--brand);transform:translateX(3px);}
.empty-tip{
  display:none;text-align:center;padding:48px 20px;color:var(--text-3);
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
}
.empty-tip.show{display:block;}
.empty-tip i{font-size:26px;display:block;margin-bottom:10px;color:var(--text-3);}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.scene-card{
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.scene-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(31,216,164,.12);color:var(--brand);font-size:18px;margin-bottom:14px;
}
.scene-card h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step;}
.step{
  position:relative;padding:22px 20px 22px 20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.step:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:2px solid var(--brand);color:var(--brand);
  font-size:14px;font-weight:700;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;font-weight:700;margin-bottom:6px;}
.step p{font-size:13.5px;color:var(--text-2);line-height:1.75;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.open{border-color:rgba(31,216,164,.42);box-shadow:0 0 0 1px rgba(31,216,164,.2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:none;color:var(--text);
  font-size:17px;font-weight:700;text-align:left;cursor:pointer;line-height:1.5;
}
.faq-q i{color:var(--brand);font-size:13px;transition:transform .3s var(--ease);flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  margin-top:var(--gap-section);
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:20px;
  padding:52px 48px;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-90px;width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(31,216,164,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--text-2);}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.cta-hint{font-size:12.5px;color:var(--text-3);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .logo-text{margin-bottom:14px;}
.footer-brand .logo-main{font-size:18px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:280px;margin-bottom:18px;}
.socials{display:flex;gap:10px;}
.socials a{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:all .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:var(--brand);box-shadow:var(--glow);transform:translateY(-2px);}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--text);}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);transition:color .2s var(--ease);}
.to-top:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1120px){
  .nav-cards{gap:2px;}
  .nav-card{padding:0 9px;font-size:13px;}
  .card-grid{grid-template-columns:1fr;}
  .channel-card{grid-template-columns:180px minmax(0,1fr);}
}
@media (max-width:1024px){
  :root{--gap-section:72px;}
  .split{grid-template-columns:1fr;}
  .filter-panel{position:static;top:auto;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:900px){
  .nav-cards{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-actions .btn-sm{display:none;}
  .nav-shell{justify-content:space-between;}
  .hero-inner{padding:34px 26px;}
  .cta-band{padding:36px 26px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  :root{--gap-section:56px;}
  .channel-card{grid-template-columns:1fr;}
  .card-thumb{aspect-ratio:16/9;}
  .card-arrow{bottom:12px;right:12px;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .hero-mini{min-height:230px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .site-footer{margin-top:64px;}
  .faq-q{font-size:15.5px;padding:16px 18px;}
  .faq-a p{padding:0 18px 16px;font-size:14px;}
}
@media (max-width:520px){
  .hero-inner{padding:26px 18px;}
  .hero-inner h1{font-size:26px;}
  .hero-desc{font-size:14.5px;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat-cell{padding:16px;}
  .stat-value{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .drawer-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .btn-sm{width:auto;}
  .filter-panel{padding:16px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060E10;
  --bg-1:#0B1518;
  --surface:#102127;
  --surface-2:#142A31;
  --line:rgba(160,232,220,.12);
  --line-strong:rgba(160,232,220,.24);
  --brand:#1FD8A4;
  --brand-deep:#0E7F63;
  --accent:#FFB020;
  --text:#EAF3F1;
  --text-2:#A6BCBC;
  --text-3:#6F8A8C;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:14px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5),0 0 0 1px var(--line);
  --glow:0 0 0 1px rgba(31,216,164,.5),0 0 22px rgba(31,216,164,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --glass:rgba(16,33,39,.62);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  padding:16px 0;
  background:rgba(6,14,16,.82);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line)}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:68px;
  padding:0 24px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:18px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  position:relative;width:30px;height:30px;flex:none;
  border-radius:9px;
  background:linear-gradient(135deg,rgba(31,216,164,.22),rgba(31,216,164,.05));
  border:1px solid var(--line-strong);
}
.logo-mark::before{
  content:"";position:absolute;left:6px;top:6px;width:16px;height:2px;
  background:var(--brand);border-radius:2px;transform:rotate(-24deg);
  box-shadow:0 6px 0 var(--brand),0 12px 0 rgba(31,216,164,.55);
}
.logo-mark::after{
  content:"";position:absolute;right:6px;bottom:5px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(31,216,164,.9);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-main{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em}
.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 12px;
  font-size:14px;color:var(--text-2);
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.nav-card i{font-size:13px;color:var(--text-3);transition:color .2s var(--ease)}
.nav-card:hover{background:var(--surface-2);color:var(--text);border-color:var(--line-strong);box-shadow:var(--glow)}
.nav-card:hover i{color:var(--brand)}
.nav-card.is-active{
  background:var(--surface-2);color:var(--text);
  border-color:var(--line-strong);
  box-shadow:inset 0 -2px 0 0 var(--brand);
}
.nav-card.is-active i{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#22E7B0,#12A98A);
  color:#04140F;
  box-shadow:0 8px 22px rgba(18,169,138,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow),0 12px 28px rgba(18,169,138,.35)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.92)}
.btn-ghost{
  background:transparent;color:var(--text);
  border-color:var(--line-strong);
}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);color:var(--text);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--surface-2);color:var(--brand);border-color:var(--brand)}
.mobile-drawer{
  display:none;
  overflow:hidden;
  max-height:0;
  transition:max-height .24s var(--ease);
}
.mobile-drawer.is-open{max-height:520px}
.drawer-inner{
  margin-top:12px;
  padding:16px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:18px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-2);
}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.drawer-grid .nav-card{height:46px;justify-content:flex-start;background:var(--surface);border-color:var(--line);font-size:14px}
.drawer-cta{margin-top:12px}
.drawer-cta .btn{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--text)}

/* ---------- Hero ---------- */
.page-hero{position:relative;margin-top:18px;overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg-1)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center 30%;
  opacity:.55;
  filter:saturate(.85);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 8% 70%,rgba(6,14,16,.35),rgba(6,14,16,.94) 70%),
    linear-gradient(180deg,rgba(6,14,16,.55),rgba(6,14,16,.97));
}
.hero-inner{position:relative;z-index:2;padding:56px 0 44px;max-width:720px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;margin-bottom:16px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:rgba(31,216,164,.14);
  border:1px solid rgba(31,216,164,.3);border-radius:var(--r-pill);
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(31,216,164,.9)}
.page-title{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.16;font-weight:700;letter-spacing:-.02em;
  margin-bottom:14px;
}
.page-title .thin{color:var(--text-2);font-weight:600}
.hero-lead{font-size:16.5px;color:var(--text-2);max-width:560px}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;font-size:13px;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- 板块通用 ---------- */
.section{padding:64px 0}
.section-alt{background:var(--bg-1);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:32px;flex-wrap:wrap}
.section-title{
  position:relative;padding-left:14px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 16px rgba(31,216,164,.5);
}
.section-desc{margin-top:10px;padding-left:14px;font-size:14.5px;color:var(--text-2);max-width:620px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.text-link i{font-size:12px;transition:transform .2s var(--ease)}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 筛选 chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:38px;padding:0 16px;
  font-size:14px;color:var(--text-2);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--line-strong);background:var(--surface-2)}
.chip.is-active{
  background:var(--brand);color:#04140F;border-color:var(--brand);font-weight:700;
  box-shadow:0 0 18px rgba(31,216,164,.35);
}
.chip i{font-size:12px}

/* ---------- 单列大条目列表 ---------- */
.dl-list{display:flex;flex-direction:column;gap:14px}
.dl-row{
  position:relative;overflow:hidden;
  display:grid;
  grid-template-columns:72px 232px minmax(0,1fr) 44px;
  gap:24px;align-items:center;
  padding:20px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.dl-row::after{
  content:"";position:absolute;left:0;top:0;width:2px;height:52px;
  background:linear-gradient(180deg,var(--brand),rgba(31,216,164,0));
  transform:skewY(-22deg);transform-origin:top left;
  opacity:.9;
}
.dl-row:hover{
  transform:translateY(-4px);
  background:rgba(20,42,49,.72);
  border-color:var(--line-strong);
  box-shadow:var(--sh-2);
}
.dl-num{
  font-size:26px;font-weight:700;letter-spacing:-.02em;
  color:var(--text-3);font-variant-numeric:tabular-nums;
  text-align:center;transition:color .2s var(--ease);
}
.dl-row:hover .dl-num{color:var(--brand)}
.dl-thumb{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;
  border-radius:var(--r-img);border:1px solid var(--line);background:var(--surface-2);
}
.dl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease),opacity .2s ease;opacity:0}
.dl-thumb img.is-loaded{opacity:1}
.dl-row:hover .dl-thumb img{transform:scale(1.04)}
.dl-body{min-width:0}
.dl-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;font-size:12px;font-weight:600;
  border-radius:var(--r-pill);
}
.badge-brand{background:rgba(31,216,164,.14);color:var(--brand)}
.badge-accent{background:rgba(255,176,32,.16);color:var(--accent)}
.badge-plain{background:rgba(160,232,220,.08);color:var(--text-2)}
.dl-title{
  font-size:17px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:8px;
}
.dl-desc{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.dl-foot{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:12px;
  font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.dl-foot span{display:inline-flex;align-items:center;gap:6px}
.dl-arrow{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.dl-row:hover .dl-arrow{color:var(--brand);border-color:var(--brand);background:rgba(31,216,164,.1);transform:translateX(3px)}

/* 空态 */
.empty-state{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:56px 20px;text-align:center;
  background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--r-card);
}
.empty-state.is-visible{display:flex}
.empty-state i{font-size:26px;color:var(--text-3)}
.empty-state p{color:var(--text-2);font-size:14.5px}

/* ---------- 运行条件双栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center}
.figure-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--surface-2);
  box-shadow:var(--sh-2);
}
.figure-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;opacity:0;transition:opacity .3s ease}
.figure-card img.is-loaded{opacity:1}
.figure-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,14,16,0) 45%,rgba(6,14,16,.82));
}
.figure-cap{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  font-size:13px;color:var(--text-2);display:flex;align-items:center;gap:8px;
}
.figure-cap i{color:var(--accent)}
.data-card{
  padding:24px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.data-card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.data-card .sub{font-size:13.5px;color:var(--text-3);margin-bottom:16px}
.data-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:14px;
}
.data-row:last-child{border-bottom:0;padding-bottom:0}
.data-row .k{color:var(--text-3)}
.data-row .v{color:var(--text);font-weight:700;font-variant-numeric:tabular-nums;text-align:right}
.data-row .v.ok{color:var(--brand)}
.data-row .v.warn{color:var(--accent)}

/* ---------- 步骤时间轴 ---------- */
.steps{position:relative;display:flex;flex-direction:column;gap:14px}
.step{
  display:grid;grid-template-columns:58px minmax(0,1fr);gap:20px;align-items:flex-start;
  padding:22px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.step:hover{border-color:var(--line-strong);background:var(--surface-2);transform:translateY(-3px)}
.step-ring{
  width:42px;height:42px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--brand);color:var(--brand);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(31,216,164,.06);
}
.step h3{font-size:17px;font-weight:700;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.step .tip{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:12.5px;color:var(--accent)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(120%);overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 20px;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--text);
}
.faq-q .ico{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--brand);font-size:12px;
  transition:transform .25s var(--ease),background .2s var(--ease);
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:rgba(31,216,164,.12)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:56px 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,216,164,.16),rgba(31,216,164,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-text h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35}
.cta-text p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:520px}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cta-note{font-size:12.5px;color:var(--text-3);margin-top:4px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo-text{margin-bottom:14px}
.footer-brand .logo-main{font-size:17px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:300px;margin-bottom:18px}
.socials{display:flex;gap:10px}
.socials a{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:var(--brand);background:rgba(31,216,164,.08);transform:translateY(-2px)}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);transition:color .2s var(--ease)}
.to-top:hover{color:var(--brand)}
.to-top i{font-size:12px}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-card{padding:0 10px;font-size:13.5px}
  .nav-card i{display:none}
}
@media (max-width:1024px){
  .split{grid-template-columns:1fr}
  .dl-row{grid-template-columns:56px 200px minmax(0,1fr) 40px;gap:18px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-col:last-child{grid-column:span 3}
}
@media (max-width:900px){
  .nav-cards{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-drawer{display:block}
  .header-inner{padding:0 16px;gap:12px;min-height:64px}
  .logo-sub{display:none}
  .section{padding:52px 0}
  .hero-inner{padding:44px 0 36px}
  .dl-row{
    grid-template-columns:minmax(0,1fr);
    grid-template-areas:none;
    gap:14px;
    padding:18px;
  }
  .dl-num{text-align:left;font-size:20px;line-height:1}
  .dl-thumb{aspect-ratio:16/9}
  .dl-arrow{display:none}
  .dl-title{-webkit-line-clamp:3}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .header-actions .btn-sm{display:none}
  .page-hero{min-height:220px}
  .page-title{font-size:30px}
  .hero-lead{font-size:15px}
  .section{padding:44px 0}
  .section-head{margin-bottom:24px}
  .chips{gap:8px}
  .chip{height:34px;padding:0 13px;font-size:13px}
  .step{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px}
  .step-ring{width:34px;height:34px;font-size:12px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-col:last-child{grid-column:span 2}
  .footer-brand{grid-column:span 2}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --bg-0:#060E10;
  --bg-1:#0B1518;
  --surface:#102127;
  --surface-2:#142A31;
  --line:rgba(160,232,220,.12);
  --line-strong:rgba(160,232,220,.24);
  --brand:#1FD8A4;
  --brand-deep:#0E7F63;
  --accent:#FFB020;
  --text:#EAF3F1;
  --text-2:#A6BCBC;
  --text-3:#6F8A8C;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:14px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5),0 0 0 1px var(--line);
  --glow:0 0 0 1px rgba(31,216,164,.5),0 0 22px rgba(31,216,164,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:none;box-shadow:var(--glow);border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px 0;
  background:linear-gradient(180deg,rgba(6,14,16,.96) 0%,rgba(6,14,16,.72) 70%,rgba(6,14,16,0) 100%);
  backdrop-filter:blur(10px) saturate(120%);
}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:18px;
  min-height:68px;padding:10px 14px 10px 18px;
  background:rgba(16,33,39,.78);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  position:relative;width:36px;height:36px;border-radius:11px;overflow:hidden;
  background:rgba(31,216,164,.12);border:1px solid var(--line-strong);flex:0 0 auto;
}
.logo-mark::before{content:"";position:absolute;left:9px;top:-8px;width:2px;height:52px;background:var(--brand);transform:rotate(20deg);}
.logo-mark::after{content:"";position:absolute;right:8px;bottom:8px;width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-main{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em;}
.nav-cards{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap;}
.nav-card{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 12px;border-radius:12px;
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-card i{font-size:14px;opacity:.85;}
.nav-card:hover{background:var(--surface-2);color:var(--text);box-shadow:var(--glow);}
.nav-card.is-active{background:rgba(31,216,164,.12);color:var(--text);}
.nav-card.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);color:var(--text);
  background:var(--surface-2);align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#22E7B0,#12A98A);
  color:#04140F;box-shadow:0 6px 18px rgba(18,169,138,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.92);}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:42px;padding:0 18px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:600;}
.text-link i{font-size:12px;transition:transform .2s var(--ease);}
.text-link:hover i{transform:translateX(3px);}

/* ============ 徽章 / 药丸 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;
}
.badge-brand{background:rgba(31,216,164,.14);color:var(--brand);}
.badge-accent{background:rgba(255,176,32,.16);color:var(--accent);}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(16,33,39,.6);color:var(--text-2);font-size:13px;
}
.chip:hover{border-color:var(--line-strong);color:var(--text);}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#04140F;font-weight:700;}

/* ============ 迷你 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  min-height:260px;display:flex;align-items:flex-end;
  padding:38px 0 34px;
  background-image:linear-gradient(180deg,rgba(6,14,16,.55) 0%,rgba(6,14,16,.86) 62%,var(--bg-0) 100%),
    linear-gradient(90deg,rgba(6,14,16,.92) 0%,rgba(6,14,16,.45) 58%,rgba(6,14,16,.7) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover,cover,cover;
  background-position:center 30%,center,center 40%;
  background-repeat:no-repeat;
}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{
  font-size:44px;line-height:1.15;font-weight:700;letter-spacing:-.02em;margin:14px 0 12px;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.page-hero .lead{max-width:640px;color:var(--text-2);font-size:17px;line-height:1.8;}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;color:var(--accent);font-size:12px;letter-spacing:.06em;font-variant-numeric:tabular-nums;}

/* ============ 板块基础 ============ */
.section{padding:var(--gap-section) 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-title{
  position:relative;padding-left:16px;
  font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;width:4px;height:20px;border-radius:2px;background:var(--brand);
}
.section-desc{margin-top:10px;padding-left:16px;color:var(--text-2);font-size:15px;max-width:720px;}

/* ============ 数据条 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.stat{
  padding:22px 20px;border-radius:var(--r-card);
  background:rgba(16,33,39,.62);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.stat:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);background:rgba(20,42,49,.78);}
.stat-num{font-size:30px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-num small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px;}
.stat-label{margin-top:6px;font-size:13px;color:var(--text-3);}

/* ============ 时间轴 / 四步 ============ */
.timeline{position:relative;display:flex;flex-direction:column;gap:18px;}
.timeline::before{
  content:"";position:absolute;left:27px;top:16px;bottom:16px;width:1px;
  background:linear-gradient(180deg,rgba(31,216,164,.5),rgba(31,216,164,.06));
}
.step{display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:flex-start;position:relative;}
.step-index{
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(31,216,164,.55);color:var(--brand);
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  background:rgba(6,14,16,.92);position:relative;z-index:2;
}
.step-body{
  padding:22px 24px;border-radius:var(--r-card);
  background:rgba(16,33,39,.62);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.step-body:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);background:rgba(20,42,49,.78);}
.step-body h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.step-body p{color:var(--text-2);font-size:15px;line-height:1.8;}
.step-points{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 场馆类型卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.venue-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:rgba(16,33,39,.62);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  display:flex;flex-direction:column;
}
.venue-card::before{
  content:"";position:absolute;left:0;top:0;width:2px;height:54px;
  background:linear-gradient(180deg,var(--brand),transparent);
  transform:skewX(-18deg);z-index:3;
}
.venue-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--sh-2);background:rgba(20,42,49,.78);}
.venue-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--surface-2);
}
.venue-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.venue-card:hover .venue-thumb img{transform:scale(1.04);}
.venue-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,14,16,.05) 40%,rgba(6,14,16,.82) 100%);
}
.venue-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.venue-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.venue-body p{font-size:14px;color:var(--text-2);line-height:1.75;}
.venue-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px dashed var(--line);}
.venue-foot span{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.venue-foot i{color:var(--brand);font-size:13px;transition:transform .2s var(--ease);}
.venue-card:hover .venue-foot i{transform:translateX(4px);}

/* ============ 入场须知 ============ */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start;}
.notice-card{
  padding:28px;border-radius:var(--r-card);
  background:rgba(16,33,39,.62);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.notice-card h3{font-size:20px;font-weight:600;margin-bottom:18px;}
.check-list li{
  position:relative;padding-left:26px;margin-bottom:14px;
  font-size:15px;color:var(--text-2);line-height:1.8;
}
.check-list li::before{
  content:"";position:absolute;left:6px;top:10px;width:6px;height:6px;
  border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(31,216,164,.7);
}
.check-list li strong{color:var(--text);font-weight:600;}
.data-list{padding:6px 0;}
.data-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:14px;
}
.data-row:last-child{border-bottom:0;}
.data-row .k{color:var(--text-3);}
.data-row .v{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.data-row .v.accent{color:var(--accent);}
.tip-box{
  margin-top:18px;padding:16px 18px;border-radius:var(--r-btn);
  background:rgba(31,216,164,.08);border:1px solid rgba(31,216,164,.22);
  font-size:14px;color:var(--text-2);line-height:1.8;
}
.tip-box i{color:var(--brand);margin-right:6px;}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:rgba(16,33,39,.62);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);background:rgba(20,42,49,.72);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:18px;font-weight:600;line-height:1.5;
}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .3s var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .32s var(--ease),opacity .28s var(--ease),padding .28s var(--ease);
  padding:0 22px;font-size:15px;line-height:1.85;color:var(--text-2);
}
.faq-item.is-open .faq-a{max-height:420px;opacity:1;padding:0 22px 20px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;margin-top:var(--gap-section);
  padding:56px 0;background:var(--bg-1);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,216,164,.18) 0%,rgba(31,216,164,0) 70%);
  pointer-events:none;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-inner h2{font-size:30px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.cta-inner p{margin-top:8px;color:var(--text-2);font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.cta-note{font-size:13px;color:var(--text-3);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--gap-section);
  padding:64px 0 28px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:36px;
}
.footer-brand .logo-text{margin-bottom:14px;}
.footer-brand .logo-main{font-size:17px;}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.8;max-width:280px;}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials a{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:14px;
  background:rgba(16,33,39,.6);
  transition:all .2s var(--ease);
}
.socials a:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--glow);transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);}
.to-top:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-card{padding:0 10px;font-size:13.5px;}
}
@media (max-width:1023px){
  :root{--gap-section:72px;}
  .nav-shell{flex-wrap:wrap;}
  .nav-cards{order:3;flex-basis:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:4px;}
  .nav-card{flex:0 0 auto;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .page-hero h1{font-size:38px;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav-cards{
    position:absolute;left:0;right:0;top:calc(100% + 8px);
    display:none;grid-template-columns:repeat(2,1fr);gap:8px;
    padding:14px;border-radius:16px;
    background:rgba(16,33,39,.96);border:1px solid var(--line-strong);
    box-shadow:var(--sh-2);backdrop-filter:blur(14px) saturate(120%);
    transform:translateY(-8px);opacity:0;
    transition:transform .24s var(--ease),opacity .24s var(--ease);
  }
  .nav-shell.is-open .nav-cards{display:grid;transform:translateY(0);opacity:1;}
  .nav-card{height:44px;justify-content:flex-start;background:var(--surface-2);border:1px solid var(--line);}
  .nav-card.is-active::after{left:12px;right:auto;width:18px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){
  :root{--gap-section:56px;}
  .container{padding:0 16px;}
  .page-hero{min-height:220px;padding:30px 0 28px;}
  .page-hero h1{font-size:30px;}
  .page-hero .lead{font-size:15px;}
  .section-title{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat{padding:18px 16px;}
  .stat-num{font-size:24px;}
  .step{grid-template-columns:44px 1fr;gap:14px;}
  .step-index{width:44px;height:44px;font-size:14px;}
  .timeline::before{left:21px;}
  .step-body{padding:18px;}
  .notice-card{padding:20px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-item.is-open .faq-a{padding:0 18px 18px;}
  .cta-inner h2{font-size:24px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category5 */
:root{
  --bg-0:#060E10;
  --bg-1:#0B1518;
  --surface:#102127;
  --surface-2:#142A31;
  --line:rgba(160,232,220,.12);
  --line-strong:rgba(160,232,220,.24);
  --brand:#1FD8A4;
  --brand-deep:#0E7F63;
  --accent:#FFB020;
  --text:#EAF3F1;
  --text-2:#A6BCBC;
  --text-3:#6F8A8C;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 48px rgba(0,0,0,.5),0 0 0 1px rgba(160,232,220,.24);
  --glow:0 0 0 1px rgba(31,216,164,.5),0 0 22px rgba(31,216,164,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,216,164,.38);border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:14px 0 0;
  background:linear-gradient(180deg,rgba(6,14,16,.94) 0%,rgba(6,14,16,.72) 68%,rgba(6,14,16,0) 100%);
  backdrop-filter:blur(10px);
}
.nav-shell{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:rgba(16,33,39,.78);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:18px;
  padding:11px 14px;
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  position:relative;width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,#22E7B0,#0E7F63);
  box-shadow:0 0 18px rgba(31,216,164,.28);
  flex:0 0 auto;
}
.brand-mark::before{
  content:"";position:absolute;left:9px;top:18px;width:20px;height:3px;border-radius:2px;
  background:#04140F;transform:rotate(-28deg);
}
.brand-mark::after{
  content:"";position:absolute;right:8px;top:8px;width:6px;height:6px;border-radius:50%;background:#04140F;
}
.logo-text{display:flex;flex-direction:column;line-height:1.16}
.logo-main{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.logo-sub{font-size:10.5px;color:var(--text-3);letter-spacing:.08em;margin-top:2px}
.nav-cards{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-card{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 11px;
  border-radius:var(--r-btn);
  font-size:13.5px;color:var(--text-2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-card i{font-size:13px;color:var(--brand);opacity:.85}
.nav-card:hover{background:var(--surface-2);color:var(--text);border-color:rgba(31,216,164,.3);box-shadow:var(--glow)}
.nav-card.is-active{color:var(--text);background:var(--surface-2);border-color:var(--line)}
.nav-card.is-active::after{
  content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(31,216,164,.65);
}
.nav-actions{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text);font-size:15px;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.cta-short{display:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn i{font-size:14px}
.btn-primary{background:linear-gradient(135deg,#22E7B0,#12A98A);color:#04140F}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.92)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-btn)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-size:14px;font-weight:600;transition:gap .2s var(--ease),color .2s var(--ease);
}
.text-link i{font-size:12px;transition:transform .2s var(--ease)}
.text-link:hover{gap:10px;color:#3DEBBA}
.text-link:hover i{transform:translateX(3px)}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:70px 0 62px;
  background:var(--bg-1) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(110% 130% at 84% 6%,rgba(31,216,164,.18),transparent 56%),
    linear-gradient(92deg,rgba(6,14,16,.96) 0%,rgba(6,14,16,.84) 46%,rgba(6,14,16,.62) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(31,216,164,.14);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.hero-eyebrow i{font-size:11px}
.page-hero h1{
  margin-top:18px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.18;letter-spacing:-.02em;font-weight:700;
  max-width:820px;
}
.hero-lead{
  margin-top:16px;max-width:600px;
  font-size:17px;line-height:1.8;color:var(--text-2);
}
.hero-meta{
  margin-top:20px;display:flex;flex-wrap:wrap;gap:18px;
  font-size:13px;color:var(--accent);letter-spacing:.03em;
  font-variant-numeric:tabular-nums;
}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta i{font-size:11px;opacity:.85}

/* ---------- Chips ---------- */
.chip-row{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:26px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  background:rgba(16,33,39,.7);border:1px solid var(--line);
  color:var(--text-2);font-size:13px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--line-strong);background:var(--surface-2)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#04140F;box-shadow:0 0 18px rgba(31,216,164,.3)}
.chip i{font-size:11px}

/* ---------- Sections ---------- */
.sec{padding:84px 0}
.sec-tight{padding:64px 0}
.sec-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(23px,2.4vw,30px);line-height:1.3;font-weight:700;letter-spacing:-.01em;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;
  background:var(--brand);box-shadow:0 0 14px rgba(31,216,164,.55);
}
.sec-head p{margin-top:14px;font-size:16px;color:var(--text-2);line-height:1.85}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-head-row .sec-head{margin-bottom:0}

/* ---------- Split (image + text) ---------- */
.split{
  display:grid;grid-template-columns:1.02fr 1fr;
  gap:52px;align-items:center;
}
.split.is-reverse .split-media{order:2}
.split-media{position:relative}
.split-media img{
  width:100%;height:100%;max-height:400px;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
  background:var(--surface-2);
  box-shadow:var(--sh-2);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.split-media:hover img{transform:translateY(-4px)}
.split-media .media-tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 13px;border-radius:var(--r-pill);
  background:rgba(6,14,16,.78);border:1px solid var(--line-strong);
  backdrop-filter:blur(8px);
  font-size:12px;font-weight:600;color:var(--brand);
}
.split-body h3{font-size:22px;line-height:1.5;font-weight:600;margin-bottom:14px}
.split-body p{font-size:16.5px;color:var(--text-2);line-height:1.9;margin-bottom:14px;max-width:40ch}
.feature-list{margin-top:22px;display:grid;gap:12px}
.feature-list li{
  position:relative;padding-left:24px;
  font-size:15px;color:var(--text-2);line-height:1.75;
}
.feature-list li::before{
  content:"";position:absolute;left:4px;top:10px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(31,216,164,.7);
}
.feature-list li strong{color:var(--text);font-weight:600}

/* ---------- Cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  position:relative;overflow:hidden;
  padding:22px 20px;
  background:rgba(16,33,39,.62);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;top:0;width:34px;height:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
  transform:rotate(-38deg) translate(-6px,10px);
  opacity:.75;
}
.card:hover{
  transform:translateY(-4px);
  background:rgba(20,42,49,.85);
  border-color:var(--line-strong);
  box-shadow:var(--sh-2);
}
.card-ico{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:rgba(31,216,164,.14);color:var(--brand);
  font-size:16px;margin-bottom:14px;
}
.card h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:9px}
.card p{font-size:14px;line-height:1.8;color:var(--text-2)}
.card .badge{margin-top:14px}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-brand{background:rgba(31,216,164,.14);color:var(--brand)}
.badge-accent{background:rgba(255,176,32,.16);color:var(--accent)}

/* ---------- Steps + Data panel ---------- */
.duo{display:grid;grid-template-columns:1.25fr .9fr;gap:36px;align-items:start}
.steps{display:grid;gap:16px}
.step{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;
  background:rgba(16,33,39,.55);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.step:hover{border-color:var(--line-strong);background:rgba(20,42,49,.75);transform:translateX(4px)}
.step-no{
  flex:0 0 auto;
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(31,216,164,.55);
  color:var(--brand);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step h4{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:5px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}

.panel{
  padding:24px 22px;
  background:rgba(16,33,39,.7);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.panel-title{
  display:flex;align-items:center;gap:9px;
  font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px;
}
.panel-title i{color:var(--brand);font-size:13px}
.panel-sub{font-size:12.5px;color:var(--text-3);margin-bottom:16px}
.data-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.data-row:last-child{border-bottom:0}
.data-row dt{color:var(--text-3)}
.data-row dd{margin:0;color:var(--text);font-weight:700;font-variant-numeric:tabular-nums}
.data-row dd.accent{color:var(--accent)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:rgba(16,33,39,.62);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(31,216,164,.42);box-shadow:0 0 0 1px rgba(31,216,164,.16),var(--sh-1);background:rgba(20,42,49,.78)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q i{
  color:var(--brand);font-size:14px;flex:0 0 auto;
  transition:transform .3s var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{
  padding:0 22px 22px 22px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:72px 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-100px;
  width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,216,164,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-copy h2{font-size:clamp(22px,2.5vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.cta-copy p{margin-top:12px;font-size:16px;color:var(--text-2);max-width:36ch}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-note{font-size:13px;color:var(--text-3);letter-spacing:.02em}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo-text{margin-bottom:16px}
.footer-brand .logo-main{font-size:19px;letter-spacing:.01em}
.footer-brand .logo-sub{font-size:11.5px;letter-spacing:.1em}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:28ch}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);
  color:var(--text-2);font-size:14px;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-3px);box-shadow:var(--glow)}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-col a:hover{color:var(--brand);padding-left:4px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);font-size:13px;transition:color .2s var(--ease)}
.to-top i{font-size:11px;transition:transform .2s var(--ease)}
.to-top:hover{color:var(--brand)}
.to-top:hover i{transform:translateY(-3px)}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .nav-card{padding:0 9px;font-size:13px;gap:5px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .duo{grid-template-columns:1fr;gap:28px}
}
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .nav-cards{
    position:absolute;left:-1px;right:-1px;top:calc(100% + 10px);
    display:grid;grid-template-columns:1fr 1fr;gap:8px;
    margin-left:0;padding:0 14px;
    background:rgba(11,21,24,.98);
    backdrop-filter:blur(18px) saturate(120%);
    border:1px solid var(--line-strong);
    border-radius:16px;
    box-shadow:var(--sh-2);
    max-height:0;opacity:0;visibility:hidden;overflow:hidden;
    transition:max-height .28s var(--ease),opacity .24s var(--ease),padding .28s var(--ease),visibility .24s;
    z-index:95;
  }
  .nav-cards.is-open{max-height:460px;opacity:1;visibility:visible;padding:14px}
  .nav-card{height:44px;justify-content:flex-start;font-size:13.5px}
  .nav-card.is-active::after{left:11px;right:11px;bottom:6px}
  .split{grid-template-columns:1fr;gap:30px}
  .split.is-reverse .split-media{order:0}
  .split-media img{max-height:320px}
}
@media (max-width:860px){
  .sec{padding:60px 0}
  .sec-tight{padding:48px 0}
  .page-hero{padding:52px 0 46px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:56px 0}
  .cta-inner{gap:24px}
  .cta-actions{width:100%}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .site-header{padding-top:10px}
  .nav-shell{padding:9px 11px;gap:10px;border-radius:16px}
  .logo-main{font-size:13.5px}
  .logo-sub{font-size:9.5px}
  .brand-mark{width:34px;height:34px;border-radius:10px}
  .nav-actions .btn-sm{padding:0 12px;font-size:13px;height:38px}
  .cta-full{display:none}
  .cta-short{display:inline}
  .page-hero h1{font-size:26px;line-height:1.26}
  .hero-lead{font-size:15.5px}
  .hero-meta{gap:12px;font-size:12px}
  .chip{height:31px;padding:0 13px;font-size:12.5px}
  .sec{padding:48px 0}
  .sec-head{margin-bottom:30px}
  .sec-head h2{font-size:21px}
  .sec-head p{font-size:15px}
  .card-grid{grid-template-columns:1fr;gap:14px}
  .card{padding:18px 16px}
  .split-body h3{font-size:19px}
  .split-body p{font-size:15.5px}
  .faq-q{font-size:15.5px;padding:16px 16px;gap:12px}
  .faq-a p{padding:0 16px 18px 16px;font-size:14.5px}
  .step{padding:15px 16px;gap:12px}
  .step-no{width:34px;height:34px;font-size:12px}
  .panel{padding:20px 16px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{font-size:12px;gap:10px}
  .cta-actions .btn{width:100%}
  .cta-note{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}