/* roulang page: index */
:root{
  --bg:#0E0A18;
  --bg-deep:#0B0714;
  --panel:#171026;
  --panel-hi:#1E1533;
  --line:rgba(255,255,255,0.08);
  --divider:#2A1F42;
  --brand:#FF6B2C;
  --brand-deep:#E4551B;
  --brand-light:#FF9A5E;
  --brand-soft:rgba(255,107,44,0.12);
  --cyan:#2FD6C0;
  --cyan-soft:rgba(47,214,192,0.12);
  --lemon:#FFD25A;
  --text:#EDE9F7;
  --text-2:#A79BC0;
  --text-3:#6F6489;
  --r-lg:18px;
  --r-md:14px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,0.45);
  --shadow-hover:0 18px 44px rgba(255,107,44,0.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","HarmonyOS 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;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;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(--cyan);outline-offset:2px;box-shadow:0 0 0 3px rgba(47,214,192,0.25);}
::selection{background:rgba(255,107,44,0.35);color:#fff;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

.section{padding:56px 0;}
@media (min-width:768px){.section{padding:80px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-line{border-top:1px solid var(--divider);}

.eyebrow{
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--cyan);font-weight:700;margin-bottom:8px;
}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;flex-wrap:wrap;margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25;letter-spacing:-0.01em;
}
.section-head .head-note{
  font-size:12px;color:var(--text-3);letter-spacing:.02em;margin-top:8px;
}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(14,10,24,0.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,0.5);}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,#FF7A33,#E4551B);
  display:grid;place-items:center;
  color:#1A0F0A;font-weight:800;font-size:18px;
  box-shadow:0 8px 20px rgba(255,107,44,0.32);
}
.brand-text{
  font-size:18px;font-weight:800;letter-spacing:-0.01em;color:var(--text);white-space:nowrap;
}
.nav-links{display:none;align-items:center;gap:2px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 13px;font-size:15px;color:var(--text-2);
  border-radius:var(--r-pill);
  transition:color .24s var(--ease),background .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);padding-left:21px;}
.nav-link.is-active::before{
  content:"";position:absolute;left:8px;top:50%;margin-top:-3px;
  width:6px;height:6px;border-radius:999px;background:var(--brand);
}
.nav-chip{background:var(--brand-soft);color:var(--brand-light);}
.nav-chip::after{display:none;}
.nav-chip:hover{background:rgba(255,107,44,0.2);color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;border-radius:999px;background:transparent;
  border:1px solid rgba(255,255,255,0.18);color:var(--text-2);
  display:none;place-items:center;
  transition:all .24s var(--ease);
}
@media (min-width:768px){.icon-btn{display:grid;}}
.icon-btn:hover{color:#fff;border-color:var(--brand);background:rgba(255,255,255,0.06);}
.hamburger{
  width:44px;height:44px;border-radius:12px;background:var(--panel);
  border:1px solid var(--line);display:grid;place-items:center;color:var(--text);
}
@media (min-width:1024px){.hamburger{display:none;}}
.hamburger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;}
.hamburger span+span{margin-top:4px;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:all .24s var(--ease);white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#FF7A33,#E4551B);
  color:#1A0F0A;box-shadow:0 8px 24px rgba(255,107,44,0.35);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,107,44,0.45);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,0.18);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,0.06);border-color:var(--brand);}
.btn-sm{height:44px;padding:0 22px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--cyan);font-size:14px;font-weight:600;
  transition:color .24s var(--ease);
}
.text-link span{transition:transform .24s var(--ease);}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;}
.text-link:hover span{transform:translateX(4px);}

/* ============ tags ============ */
.tag{
  display:inline-flex;align-items:center;height:25px;padding:0 10px;
  border-radius:999px;font-size:12px;letter-spacing:.02em;font-weight:600;
}
.tag-cyan{background:var(--cyan-soft);color:var(--cyan);}
.tag-brand{background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;}
.tag-lemon{background:rgba(255,210,90,0.14);color:var(--lemon);}
.tag-muted{background:rgba(255,255,255,0.06);color:var(--text-2);}
.meta{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--text-3);letter-spacing:.02em;
}
.meta svg{width:13px;height:13px;flex:0 0 auto;}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 0;}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(to top,#0E0A18 2%,rgba(14,10,24,0.72) 46%,rgba(14,10,24,0.5) 100%),
    linear-gradient(to right,rgba(14,10,24,0.94) 0%,rgba(14,10,24,0.6) 48%,rgba(14,10,24,0.05) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr;gap:36px;
  min-height:520px;align-items:center;padding-bottom:40px;
}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:minmax(0,1fr) 260px;min-height:680px;gap:48px;}
}
.hero-copy{max-width:620px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:999px;font-size:12px;letter-spacing:.02em;
  color:var(--brand-light);background:var(--brand-soft);
  border:1px solid rgba(255,107,44,0.28);
}
.hero-title{
  font-size:clamp(30px,5vw,56px);font-weight:800;line-height:1.15;
  letter-spacing:-0.02em;margin:20px 0 18px;
}
.hero-sub{
  font-size:16px;color:var(--text-2);max-width:560px;
}
@media (min-width:768px){.hero-sub{font-size:17px;}}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-note{
  margin-top:16px;font-size:12px;color:var(--text-3);letter-spacing:.02em;
}
.hero-card{display:none;}
@media (min-width:1024px){
  .hero-card{
    display:block;background:var(--panel);border:1px solid var(--line);
    border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);
  }
}
.hero-card-media{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--panel-hi);}
.hero-card-media img{width:100%;height:100%;object-fit:cover;}
.hero-card-media .tag{position:absolute;top:12px;left:12px;}
.hero-card-media .tag-lemon{left:auto;right:12px;top:12px;font-weight:700;}
.hero-progress{position:absolute;left:0;right:0;bottom:0;height:4px;background:rgba(255,255,255,0.12);}
.hero-progress span{display:block;height:100%;width:68%;background:linear-gradient(90deg,#FF9A5E,#E4551B);}
.hero-card-body{padding:14px 16px 18px;}
.hero-card-title{font-size:15px;font-weight:700;line-height:1.4;}
.hero-card-meta{font-size:12px;color:var(--text-3);margin-top:4px;}
.hero-stats{
  position:relative;z-index:1;
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  margin-bottom:0;transform:translateY(0);
}
@media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,1fr);}}
.hero-stats li{
  background:rgba(23,16,38,0.86);
  min-height:64px;padding:12px 18px;
  display:flex;flex-direction:column;justify-content:center;
}
.hero-stats strong{font-size:18px;font-weight:800;color:var(--text);letter-spacing:-0.01em;}
.hero-stats span{font-size:12px;color:var(--text-3);letter-spacing:.02em;}

/* ============ rail ============ */
.rail-tools{display:flex;align-items:center;gap:10px;}
.rail-btn{
  width:38px;height:38px;border-radius:999px;background:transparent;
  border:1px solid rgba(255,255,255,0.18);color:var(--text-2);
  display:none;place-items:center;font-size:15px;
  transition:all .24s var(--ease);
}
@media (min-width:1024px){.rail-btn{display:grid;}}
.rail-btn:hover{color:#fff;border-color:var(--brand);background:rgba(255,255,255,0.06);}
.rail{
  display:flex;gap:18px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:8px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 68vw;scroll-snap-align:start;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:12px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
@media (min-width:640px){.rail-card{flex:0 0 240px;}}
@media (min-width:1024px){.rail-card{flex:0 0 258px;}}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,107,44,0.35);}
.rail-media{
  position:relative;aspect-ratio:16/9;border-radius:var(--r-md);
  overflow:hidden;background:var(--panel-hi);
}
.rail-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease);}
.rail-card:hover .rail-media img{transform:scale(1.04);}
.rail-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:46%;
  background:linear-gradient(to top,rgba(11,7,20,0.85),rgba(11,7,20,0));
}
.rail-media .tag{position:absolute;top:10px;left:10px;z-index:2;}
.rail-media .tag-lemon{left:auto;right:10px;top:auto;bottom:10px;z-index:2;}
.rail-title{
  font-size:17px;font-weight:600;line-height:1.4;margin-top:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rail-meta{font-size:12px;color:var(--text-3);margin-top:8px;letter-spacing:.02em;}

/* ============ bento ============ */
.bento{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){
  .bento{grid-template-columns:repeat(4,1fr);grid-auto-rows:120px;}
}
.bento-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  min-height:280px;box-shadow:var(--shadow-card);
  display:flex;align-items:flex-end;
}
@media (min-width:768px){
  .bento-main{grid-column:span 2;grid-row:span 2;min-height:0;}
}
.bento-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.bento-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,7,20,0.94) 6%,rgba(11,7,20,0.55) 46%,rgba(11,7,20,0.12) 100%);
}
.bento-main-body{position:relative;z-index:2;padding:22px;}
.bento-main-body h3{font-size:22px;font-weight:700;line-height:1.35;margin-top:12px;}
.bento-main-body p{font-size:14px;color:var(--text-2);margin-top:10px;max-width:420px;}
.bento-main-body .btn{margin-top:18px;}
.bento-mini{
  display:flex;align-items:center;gap:14px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:14px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.bento-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(47,214,192,0.35);}
@media (min-width:768px){
  .bento-mini{grid-column:span 2;min-height:0;}
  .bento-mini:last-child{grid-column:span 2;}
}
.bento-thumb{
  width:64px;height:64px;flex:0 0 64px;border-radius:var(--r-md);
  overflow:hidden;background:var(--panel-hi);
}
.bento-thumb img{width:100%;height:100%;object-fit:cover;}
.bento-mini h3{
  font-size:16px;font-weight:600;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.bento-mini .meta{margin-top:6px;}

/* ============ 片单分区 ============ */
.split{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.split{grid-template-columns:200px minmax(0,1fr);gap:48px;}}
.anchor-nav{display:none;}
@media (min-width:1024px){.anchor-nav{display:block;}}
.anchor-nav-inner{position:sticky;top:104px;}
.anchor-nav p{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px;font-weight:600;}
.anchor-nav a{
  display:block;padding:9px 0 9px 14px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:all .24s var(--ease);
}
.anchor-nav a:hover{color:var(--text);}
.anchor-nav a.is-current{color:var(--text);border-left-color:var(--brand);font-weight:600;}
.album-block+.album-block{margin-top:36px;padding-top:36px;border-top:1px solid var(--divider);}
.album-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px;}
.album-head h3{font-size:20px;font-weight:700;line-height:1.35;}
.album-head .head-note{margin-top:6px;font-size:12px;color:var(--text-3);}
.album-grid{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:768px){.album-grid{grid-template-columns:repeat(2,1fr);}}
.album-card{
  display:flex;gap:14px;align-items:center;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:12px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.album-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,107,44,0.3);}
.album-thumb{
  width:104px;height:64px;flex:0 0 104px;border-radius:var(--r-md);
  overflow:hidden;background:var(--panel-hi);
}
.album-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease);}
.album-card:hover .album-thumb img{transform:scale(1.05);}
.album-card h4{font-size:16px;font-weight:600;line-height:1.4;}
.album-card p{font-size:13px;color:var(--text-3);margin-top:6px;}

/* ============ 最新动态 ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(47,214,192,0.3);}
.news-card .tag{align-self:flex-start;margin-bottom:14px;}
.news-title{
  font-size:17px;font-weight:600;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a{transition:color .24s var(--ease);}
.news-title a:hover{color:var(--brand-light);}
.news-summary{
  font-size:15px;color:var(--text-2);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--divider);
}
.empty-state{
  grid-column:1/-1;min-height:320px;border-radius:var(--r-lg);
  border:1px dashed rgba(255,255,255,0.1);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:32px;
}
.empty-art{width:72px;height:72px;color:var(--cyan);opacity:.75;}
.empty-state p{font-size:14px;color:var(--text-3);}

/* ============ 骨架微光 ============ */
.skeleton{background:var(--panel-hi);position:relative;overflow:hidden;}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,0.05) 50%,rgba(255,255,255,0) 100%);
  animation:shimmer 1.8s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%);}100%{transform:translateX(100%);}}

/* ============ CTA 订阅 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--panel-hi);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-glow{position:absolute;inset:0;pointer-events:none;}
.cta-glow::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  right:-140px;top:-220px;background:radial-gradient(circle,rgba(47,214,192,0.12),rgba(47,214,192,0) 70%);
}
.cta-glow::after{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  left:-160px;bottom:-240px;background:radial-gradient(circle,rgba(255,107,44,0.12),rgba(255,107,44,0) 70%);
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
}
@media (min-width:1024px){.cta-inner{grid-template-columns:minmax(0,1fr) minmax(0,460px);gap:48px;}}
.cta-inner h2{font-size:clamp(24px,3.2vw,32px);font-weight:700;line-height:1.3;}
.cta-inner p.lead{font-size:14px;color:var(--text-2);margin-top:12px;}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:520px){.subscribe-form{flex-wrap:nowrap;}}
.field{
  flex:1 1 220px;height:48px;border-radius:999px;
  background:var(--panel);border:1px solid rgba(255,255,255,0.1);
  color:var(--text);padding:0 20px;font-size:15px;
  transition:border-color .24s var(--ease);
}
.field::placeholder{color:var(--text-3);}
.field:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,0.18);}
.form-note{font-size:12px;color:var(--text-3);margin-top:12px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:border-color .24s var(--ease),background .26s var(--ease);
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  display:grid;place-items:center;color:var(--text-2);
  border:1px solid rgba(255,255,255,0.14);font-size:16px;font-weight:600;
  transition:all .26s var(--ease);
}
.faq-item[open]{border-color:rgba(255,107,44,0.5);}
.faq-item[open] summary::after{
  content:"−";color:#1A0F0A;border-color:transparent;
  background:linear-gradient(135deg,#FF7A33,#E4551B);transform:rotate(180deg);
}
.faq-body{
  padding:0 22px 22px;font-size:15px;color:var(--text-2);
  border-top:1px solid var(--divider);padding-top:16px;margin-top:0;
}
.faq-item[open] .faq-body{animation:fadeUp .34s var(--ease);}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
.reveal{animation:fadeUp .4s var(--ease) both;}

/* ============ footer ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--divider);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px;font-size:15px;}
.footer-brand .brand-text{font-size:16px;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,0.14);color:var(--text-2);
  transition:all .24s var(--ease);
}
.footer-social a:hover{color:#fff;border-color:var(--brand);background:rgba(255,255,255,0.06);}
.footer-col h3{
  font-size:14px;font-weight:600;letter-spacing:.06em;
  color:var(--text-3);margin-bottom:16px;
}
.footer-col a{
  display:block;font-size:14px;line-height:2.1;color:var(--text-2);
  transition:color .24s var(--ease),transform .24s var(--ease);
}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px);}
.footer-form{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap;}
.footer-form .field{flex:1 1 160px;height:46px;padding:0 18px;font-size:14px;}
.footer-form .btn{height:46px;}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--divider);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:12px;color:var(--text-3);line-height:1.9;}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,0.18);background:transparent;
  color:var(--text-2);font-size:13px;
  transition:all .24s var(--ease);
}
.to-top:hover{color:#fff;border-color:var(--brand);background:rgba(255,255,255,0.06);}

/* ============ mobile drawer ============ */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--panel);
  transform:translateY(-100%);
  transition:transform .32s var(--ease);
  display:flex;flex-direction:column;
  padding:20px 20px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px;margin-bottom:8px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;background:transparent;
  border:1px solid var(--line);color:var(--text);display:grid;place-items:center;font-size:18px;
}
.drawer-nav{flex:1;margin-top:4px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:18px;line-height:56px;color:var(--text-2);
  border-bottom:1px solid var(--line);
  min-height:56px;
}
.drawer-nav a.is-active{color:var(--text);font-weight:700;}
.drawer-nav a.is-active::after{
  content:"";width:6px;height:6px;border-radius:999px;background:var(--brand);
}
.drawer-cta{margin-top:20px;}

/* ============ anchor offset ============ */
[id]{scroll-margin-top:96px;}

/* roulang page: article */
:root{
  --bg:#0E0A18;
  --bg-deep:#0B0714;
  --panel:#171026;
  --panel-hi:#1E1533;
  --line:#2A1F42;
  --stroke:rgba(255,255,255,.08);
  --brand:#FF6B2C;
  --brand-deep:#E4551B;
  --brand-light:#FF9A5E;
  --brand-soft:rgba(255,107,44,.12);
  --cyan:#2FD6C0;
  --cyan-soft:rgba(47,214,192,.12);
  --lemon:#FFD25A;
  --t1:#EDE9F7;
  --t2:#A79BC0;
  --t3:#6F6489;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --shadow-card-hover:0 18px 44px rgba(255,107,44,.18);
  --shadow-btn:0 8px 24px rgba(255,107,44,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:system-ui,"PingFang SC","HarmonyOS 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;transition:color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:none;background:none;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;box-shadow:0 0 0 3px rgba(47,214,192,.25);}
::selection{background:rgba(255,107,44,.35);color:#fff;}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#FF7A33,#E4551B);
  color:#1A0F0A;font-weight:700;font-size:15px;letter-spacing:.01em;
  box-shadow:var(--shadow-btn);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease);
  white-space:nowrap;
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,107,44,.45);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  background:transparent;border:1px solid rgba(255,255,255,.18);
  color:var(--t1);font-weight:600;font-size:15px;
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  white-space:nowrap;
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:scale(.98);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--cyan);
  font-size:14px;font-weight:600;
}
.btn-text .arrow{transition:transform .22s var(--ease);display:inline-block;}
.btn-text:hover .arrow{transform:translateX(4px);}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px;}
.icon-btn{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.18);color:var(--t2);background:transparent;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.icon-btn:hover{color:var(--t1);border-color:var(--brand);background:rgba(255,255,255,.05);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(14,10,24,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--stroke);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,.5);}
.header-inner{display:flex;align-items:center;gap:14px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,#FF7A33,#E4551B);
  color:#1A0F0A;font-weight:800;font-size:18px;line-height:1;
  box-shadow:0 6px 18px rgba(255,107,44,.32);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--t1);white-space:nowrap;}
.nav-links{display:none;margin-left:auto;}
@media(min-width:1024px){.nav-links{display:flex;align-items:center;gap:2px;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:16px;color:var(--t2);padding:9px 12px;border-radius:var(--r-pill);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--cyan);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--t1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.nav-chip{background:rgba(255,255,255,.06);border:1px solid var(--stroke);font-size:15px;}
.nav-link.nav-chip:hover{background:rgba(255,255,255,.1);}
.nav-link.is-active{color:var(--t1);}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
@media(min-width:1024px){.header-actions{margin-left:14px;}}
.header-cta{height:44px;padding:0 20px;font-size:15px;}
.hamburger{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.18);color:var(--t1);
}
.hamburger:hover{border-color:var(--brand);}
@media(min-width:1024px){.hamburger{display:none;}}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.hamburger span+span{margin-top:5px;}

.mobile-drawer{
  position:fixed;inset:0;z-index:60;background:var(--panel);
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .3s var(--ease),opacity .24s var(--ease);
  display:flex;flex-direction:column;padding:22px 20px 26px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.18);display:grid;place-items:center;color:var(--t2);}
.drawer-close:hover{color:var(--t1);border-color:var(--brand);}
.drawer-links{display:flex;flex-direction:column;margin-top:8px;}
.drawer-links a{
  font-size:18px;line-height:56px;color:var(--t2);border-bottom:1px solid var(--line);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--t1);}
.drawer-links a.is-active{color:var(--brand-light);}
.drawer-foot{margin-top:auto;padding-top:22px;}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.article-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center 30%;
  opacity:.3;
}
.article-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,#0E0A18 6%,rgba(14,10,24,.78) 58%,rgba(14,10,24,.94));
}
.article-hero-inner{position:relative;z-index:2;padding-top:26px;padding-bottom:42px;min-height:320px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);letter-spacing:.02em;}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--cyan);}
.crumb .sep{color:var(--line);}
.crumb-current{max-width:min(560px,62vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--t3);}
.article-title{
  font-size:clamp(26px,3.6vw,42px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
  color:var(--t1);margin:16px 0 18px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--t3);letter-spacing:.02em;}
.meta-row .sep{color:var(--line);}
.meta-row .meta-strong{color:var(--t2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;height:25px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;letter-spacing:.02em;
  max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.tag-cyan{color:var(--cyan);background:var(--cyan-soft);}
.tag-brand{color:#1A0F0A;background:linear-gradient(135deg,#FF9A5E,#FF6B2C);font-weight:600;}
.tag-soft{color:var(--t2);background:rgba(255,255,255,.06);border:1px solid var(--stroke);}
.tag-lemon{color:#2A1F42;background:var(--lemon);font-weight:600;}

/* ---------- 文章主体布局 ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:42px;padding:46px 0 8px;}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:52px;align-items:start;padding:56px 0 8px;}
}
.article-main{max-width:760px;width:100%;}
.article-side{display:flex;flex-direction:column;gap:18px;}
@media(min-width:1024px){.article-side{position:sticky;top:96px;}}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--t1);}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;padding-left:16px;margin:32px 0 16px;
  font-size:clamp(20px,2.4vw,25px);font-weight:700;line-height:1.35;letter-spacing:-.01em;color:var(--t1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:18px;border-radius:2px;
  background:linear-gradient(180deg,#FF9A5E,#E4551B);
}
.article-body h3{margin:26px 0 12px;font-size:19px;font-weight:700;line-height:1.4;color:var(--t1);}
.article-body h4{margin:20px 0 10px;font-size:17px;font-weight:600;color:var(--t1);}
.article-body blockquote{
  margin:22px 0;padding:14px 20px;border-left:4px solid var(--cyan);
  background:var(--panel);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--t2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:22px;}
.article-body li{margin:0 0 .5em;line-height:1.9;}
.article-body li::marker{color:var(--brand);}
.article-body img{border-radius:var(--r-md);margin:20px 0 8px;width:100%;height:auto;background:var(--panel-hi);}
.article-body figure{margin:20px 0;}
.article-body figcaption,
.article-body .caption{font-size:13px;color:var(--t3);text-align:center;margin-top:8px;letter-spacing:.02em;}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#5BE8D4;}
.article-body strong{color:#fff;font-weight:700;}
.article-body code{
  background:var(--panel);border:1px solid var(--stroke);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--brand-light);
}
.article-body pre{
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--r-sm);
  padding:16px 18px;overflow-x:auto;margin:20px 0;font-size:14px;line-height:1.75;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--r-sm);overflow:hidden;
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{color:var(--t2);font-weight:600;font-size:14px;background:var(--panel-hi);}
.article-body tr:last-child td{border-bottom:none;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:30px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:300px;border:1px dashed rgba(255,255,255,.1);border-radius:var(--r-lg);
  background:var(--panel);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;padding:36px 24px;text-align:center;
}
.empty-shape{
  width:96px;height:96px;border-radius:20px;border:1px solid var(--stroke);
  position:relative;background:var(--panel-hi);
}
.empty-shape::before,.empty-shape::after{
  content:"";position:absolute;background:var(--brand);border-radius:3px;
}
.empty-shape::before{width:4px;height:34px;left:26px;top:31px;}
.empty-shape::after{width:34px;height:4px;left:44px;top:46px;background:var(--cyan);}
.empty-state p{font-size:14px;color:var(--t3);}

/* ---------- 侧栏 ---------- */
.side-panel{
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--shadow-card);
}
.side-title{
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--t3);
  text-transform:none;margin-bottom:14px;
}
.side-list{display:flex;flex-direction:column;}
.side-item{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);}
.side-item:last-child{border-bottom:none;padding-bottom:2px;}
.side-item:first-child{padding-top:0;}
.side-thumb{
  width:56px;height:56px;border-radius:var(--r-sm);overflow:hidden;flex-shrink:0;
  background:var(--panel-hi);
}
.side-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.side-item:hover .side-thumb img{transform:scale(1.06);}
.side-item h4{
  font-size:14px;font-weight:600;line-height:1.45;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.side-item:hover h4{color:var(--brand-light);}
.side-meta{font-size:12px;color:var(--t3);letter-spacing:.02em;margin-top:4px;}
.side-cta{margin-top:16px;}
.side-cta a{width:100%;}

/* ---------- 文末 ---------- */
.tail-block{padding:38px 0 0;border-top:1px solid var(--line);margin-top:38px;}
.tail-title{font-size:14px;letter-spacing:.06em;color:var(--t3);font-weight:600;margin-bottom:16px;}
.tail-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}

.rel-section{padding:52px 0 0;}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:22px;}
.section-h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--t1);}
.section-sub{font-size:12px;color:var(--t3);letter-spacing:.02em;margin-top:6px;}
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.rel-grid{grid-template-columns:repeat(3,1fr);}}
.rel-card{
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(255,107,44,.4);}
.rel-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel-hi);}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .34s var(--ease);}
.rel-card:hover .rel-cover img{transform:scale(1.04);}
.rel-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,7,20,.85),rgba(11,7,20,0) 62%);
}
.rel-badge{position:absolute;left:12px;top:12px;z-index:2;}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{
  font-size:17px;font-weight:600;line-height:1.4;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-body p{
  font-size:15px;line-height:1.7;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12px;color:var(--t3);letter-spacing:.02em;
}

/* ---------- 订阅 CTA ---------- */
.cta-wrap{padding:64px 0 0;}
.cta-band{
  position:relative;overflow:hidden;background:var(--panel-hi);
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  padding:32px 22px;display:grid;gap:22px;
}
@media(min-width:768px){.cta-band{grid-template-columns:1.05fr .95fr;align-items:center;padding:40px 36px;}}
.cta-band::before{
  content:"";position:absolute;width:420px;height:420px;left:-140px;top:-190px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,214,192,.12),rgba(47,214,192,0) 68%);
}
.cta-band::after{
  content:"";position:absolute;width:380px;height:380px;right:-120px;bottom:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.12),rgba(255,107,44,0) 68%);
}
.cta-inner{position:relative;z-index:2;}
.cta-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--t1);}
.cta-desc{font-size:15px;line-height:1.8;color:var(--t2);margin-top:10px;max-width:520px;}
.cta-form{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;}
.form-input{
  flex:1 1 220px;min-width:0;height:48px;border-radius:var(--r-pill);
  background:var(--bg);border:1px solid rgba(255,255,255,.1);
  padding:0 18px;color:var(--t1);font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-input::placeholder{color:var(--t3);}
.form-input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,.25);}
.cta-note{position:relative;z-index:2;font-size:12px;color:var(--t3);letter-spacing:.02em;margin-top:4px;width:100%;}
@media(max-width:767px){.cta-form .btn-primary{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.35fr 1fr 1fr 1.3fr;gap:30px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:30px;height:30px;font-size:16px;border-radius:9px;}
.footer-brand .brand-text{font-size:17px;font-weight:800;color:var(--t1);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--t2);max-width:340px;}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--t3);margin-bottom:14px;}
.footer-col > a{display:block;font-size:14px;line-height:2.1;color:var(--t2);}
.footer-col > a:hover{color:var(--cyan);transform:translateX(3px);}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.18);color:var(--t2);
}
.footer-social a:hover{color:var(--cyan);border-color:var(--cyan);}
.footer-form{display:flex;gap:8px;margin-top:14px;}
.footer-form input{
  flex:1;min-width:0;height:46px;border-radius:var(--r-pill);
  background:var(--panel);border:1px solid rgba(255,255,255,.1);
  padding:0 16px;color:var(--t1);font-size:14px;
}
.footer-form input::placeholder{color:var(--t3);}
.footer-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,.22);}
.footer-form button{
  height:46px;padding:0 18px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;font-weight:700;font-size:14px;
  transition:filter .22s var(--ease),transform .22s var(--ease);
}
.footer-form button:hover{filter:brightness(1.06);transform:translateY(-1px);}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  justify-content:space-between;font-size:13px;color:var(--t3);
}
.footer-record{letter-spacing:.02em;}
.to-top{
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);color:var(--t2);font-size:13px;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.to-top:hover{color:var(--t1);border-color:var(--brand);background:rgba(255,255,255,.05);}

/* ---------- 进场动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .4s var(--ease) forwards;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
@media(max-width:767px){
  .article-hero-inner{min-height:270px;padding-bottom:32px;}
  .header-inner{height:64px;}
  .brand-text{font-size:17px;}
  .rel-body h3{font-size:16px;}
}

/* roulang page: category1 */
:root{
  --bg:#0E0A18; --bg-deep:#0B0714; --panel:#171026; --panel-hi:#1E1533;
  --line:#2A1F42; --stroke:rgba(255,255,255,.08);
  --brand:#FF6B2C; --brand-deep:#E4551B; --brand-soft:#FF9A5E; --brand-tint:rgba(255,107,44,.12);
  --cyan:#2FD6C0; --cyan-tint:rgba(47,214,192,.12);
  --lemon:#FFD25A;
  --text:#EDE9F7; --muted:#A79BC0; --dim:#6F6489;
  --r-lg:18px; --r-sm:14px; --r-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 18px 44px rgba(255,107,44,.18);
  --shadow-btn:0 8px 24px rgba(255,107,44,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.85;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  -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}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;box-shadow:0 0 0 3px rgba(47,214,192,.25)}
::selection{background:rgba(255,107,44,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0B0714}
::-webkit-scrollbar-thumb{background:#2A1F42;border-radius:999px;border:2px solid #0B0714}
::-webkit-scrollbar-thumb:hover{background:#3B2C5C}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:1rem;padding-right:1rem}
@media (min-width:768px){.container{padding-left:1.5rem;padding-right:1.5rem}}
@media (min-width:1024px){.container{padding-left:2rem;padding-right:2rem}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(14,10,24,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--stroke);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,.5)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px}
@media (min-width:1024px){.nav-inner{height:74px}}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;
  font-size:19px;font-weight:800;line-height:1;
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
@media (min-width:1024px){.brand-text{font-size:19px}}
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:28px}
}
.nav-link{position:relative;font-size:16px;color:var(--muted);padding:6px 2px;transition:color .22s var(--ease);white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1);background:var(--brand)}
.nav-link.is-active::before{
  content:"";position:absolute;left:-12px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--brand);transform:translateY(-50%);
}
.nav-chip{padding:7px 14px;border-radius:var(--r-pill);background:var(--panel);border:1px solid var(--stroke)}
.nav-chip::after{left:14px;right:14px;bottom:4px}
.nav-chip.is-active{background:var(--brand-tint);border-color:rgba(255,107,44,.4)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:none;place-items:center;
  border:1px solid rgba(255,255,255,.18);color:var(--muted);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
@media (min-width:1024px){.icon-btn{display:grid}}
.icon-btn:hover{color:var(--text);border-color:var(--brand);background:rgba(255,107,44,.1)}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--stroke);color:var(--text);background:var(--panel);
}
@media (min-width:1024px){.nav-toggle{display:none}}

.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:64px;bottom:0;z-index:49;
  background:#171026;border-top:1px solid var(--line);
  flex-direction:column;padding:12px 0 0;
}
.mobile-drawer.open{display:flex;animation:dropIn .28s var(--ease)}
@keyframes dropIn{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
.drawer-nav{flex:1;overflow-y:auto;padding:0 16px}
.drawer-link{
  display:block;font-size:18px;line-height:56px;color:var(--text);
  border-bottom:1px solid var(--stroke);transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.drawer-link:hover{color:var(--cyan);padding-left:6px}
.drawer-link.is-active{color:var(--brand);font-weight:700}
.drawer-foot{padding:16px;border-top:1px solid var(--line);background:#140E22}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,107,44,.42)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--brand)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%;height:48px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:15px;font-weight:600}
.link-arrow svg{transition:transform .22s var(--ease)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-cyan{background:var(--cyan-tint);color:var(--cyan)}
.badge-brand{background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A}
.badge-lemon{background:rgba(255,210,90,.14);color:var(--lemon)}
.badge-dim{background:rgba(255,255,255,.06);color:var(--muted)}

/* ---------- section ---------- */
.section{padding-top:56px;padding-bottom:56px}
@media (min-width:768px){.section{padding-top:80px;padding-bottom:80px}}
@media (min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}
.section-tight{padding-top:40px;padding-bottom:40px}
.section-head{display:flex;flex-wrap:wrap;gap:14px 32px;align-items:flex-end;justify-content:space-between;margin-bottom:32px}
.eyebrow{display:block;font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand);margin-bottom:10px}
.section-head h2,.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.section-note{max-width:460px;font-size:14px;color:var(--dim);line-height:1.8}

/* ---------- banner ---------- */
.page-banner{
  position:relative;overflow:hidden;display:flex;align-items:center;
  min-height:260px;padding:52px 0 48px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(14,10,24,.95) 0%,rgba(14,10,24,.74) 52%,rgba(14,10,24,.34) 100%),
    linear-gradient(180deg,rgba(14,10,24,.35) 0%,#0E0A18 97%);
}
@media (min-width:1024px){.page-banner{min-height:316px;padding:64px 0 56px}}
.banner-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.banner-copy{max-width:680px}
.banner-copy h1{
  font-size:clamp(30px,5vw,44px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:14px 0 12px;
}
.banner-desc{font-size:16px;color:var(--muted);line-height:1.8;max-width:560px}
.banner-badge{
  display:none;min-width:180px;padding:18px 22px;border-radius:var(--r-lg);
  background:rgba(23,16,38,.72);border:1px solid var(--stroke);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
@media (min-width:1024px){.banner-badge{display:block}}
.banner-badge strong{display:block;font-size:30px;font-weight:800;color:var(--lemon);line-height:1.2;letter-spacing:-.02em}
.banner-badge span{font-size:13px;color:var(--muted)}
.banner-badge small{display:block;margin-top:8px;font-size:12px;color:var(--dim);letter-spacing:.02em}

/* ---------- stat band ---------- */
.stat-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(23,16,38,.5)}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line)}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat-item{background:rgba(23,16,38,.9);padding:22px 20px}
.stat-item span{display:block;font-size:12px;letter-spacing:.08em;color:var(--dim);margin-bottom:8px}
.stat-item strong{display:block;font-size:18px;font-weight:700;color:var(--text);line-height:1.4}
.stat-item em{display:block;font-style:normal;font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- cards ---------- */
.card{
  background:var(--panel);border:1px solid var(--stroke);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,107,44,.35)}
.card h3{font-size:18px;font-weight:600;line-height:1.45;margin:14px 0 8px}
.card p{font-size:15px;color:var(--muted);line-height:1.85}
.card-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-tint);color:var(--brand);
}
.card-icon.is-cyan{background:var(--cyan-tint);color:var(--cyan)}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:58px}
@media (min-width:1024px){.timeline{padding-left:76px}}
.timeline::before{
  content:"";position:absolute;left:19px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(255,107,44,.9),rgba(255,107,44,.25) 70%,rgba(47,214,192,.35));
}
@media (min-width:1024px){.timeline::before{left:23px}}
.step{position:relative;padding-bottom:40px}
.step:last-child{padding-bottom:0}
.step-index{
  position:absolute;left:-58px;top:2px;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-size:14px;font-weight:800;letter-spacing:.02em;
  background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;
  box-shadow:0 8px 20px rgba(255,107,44,.3);
}
@media (min-width:1024px){.step-index{left:-76px;width:48px;height:48px;font-size:15px}}
.step-body{display:grid;gap:18px}
@media (min-width:900px){.step-body{grid-template-columns:300px 1fr;gap:26px;align-items:start}}
.step-media{border-radius:var(--r-sm);overflow:hidden;background:var(--panel-hi);aspect-ratio:16/9}
.step-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.step:hover .step-media img{transform:scale(1.04)}
.step-text h3{font-size:20px;font-weight:700;line-height:1.35;margin-bottom:10px}
.step-text p{font-size:15px;color:var(--muted);line-height:1.85}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- scene split ---------- */
.scene-media{border-radius:var(--r-lg);overflow:hidden;background:var(--panel-hi);box-shadow:var(--shadow-card)}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s var(--ease)}
.scene-media:hover img{transform:scale(1.04)}
.scene-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.scene-item{background:var(--panel);padding:20px 22px;transition:background .22s var(--ease)}
.scene-item:hover{background:var(--panel-hi)}
.scene-item h3{font-size:17px;font-weight:600;line-height:1.45;display:flex;align-items:center;gap:10px;margin-bottom:6px}
.scene-item h3::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--cyan);flex:none}
.scene-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- checklist ---------- */
.check-panel{border:1px solid var(--stroke);border-radius:var(--r-lg);background:var(--panel);padding:24px}
.check-panel h3{font-size:17px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.check-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--muted);line-height:1.9;
}
.check-list li+li{margin-top:8px}
.check-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--brand);
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  position:relative;background:var(--panel);border:1px solid var(--stroke);
  border-radius:var(--r-sm);transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);opacity:0;transition:opacity .24s var(--ease);
}
.faq-item[open]{border-color:rgba(255,107,44,.5);background:var(--panel-hi)}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px 18px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-mark{
  position:relative;width:22px;height:22px;flex:none;color:var(--dim);
  transition:transform .26s var(--ease),color .26s var(--ease);
}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.faq-mark::before{width:14px;height:2px}
.faq-mark::after{width:2px;height:14px}
.faq-item[open] .faq-mark{transform:rotate(180deg);color:var(--brand)}
.faq-item[open] .faq-mark::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.9;animation:fadeUp .28s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--panel-hi);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
@media (min-width:1024px){.cta-band{padding:72px 0}}
.cta-band::before,.cta-band::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.cta-band::before{width:420px;height:420px;left:-120px;top:-140px;background:radial-gradient(circle,rgba(255,107,44,.12),transparent 68%)}
.cta-band::after{width:380px;height:380px;right:-100px;bottom:-160px;background:radial-gradient(circle,rgba(47,214,192,.12),transparent 68%)}
.cta-inner{position:relative;z-index:1;display:grid;gap:26px}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.05fr .95fr;align-items:center;gap:48px}}
.cta-inner h2{font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em;margin-bottom:12px}
.cta-inner p{font-size:15px;color:var(--muted);line-height:1.85}
.cta-form{display:flex;flex-wrap:wrap;gap:12px}
.cta-form input{
  flex:1 1 240px;height:48px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--panel);border:1px solid rgba(255,255,255,.1);color:var(--text);
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.cta-form input::placeholder{color:var(--dim)}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,.18)}
.cta-foot{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;margin-top:26px;position:relative;z-index:1}
.cta-note{font-size:12px;color:var(--dim);letter-spacing:.02em;margin-top:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:52px 0 0}
.footer-grid{display:grid;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:16px}
.footer-brand .brand-text{font-size:17px;font-weight:800}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.9;max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.18);color:var(--muted);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.footer-social a:hover{color:var(--cyan);border-color:var(--cyan);background:var(--cyan-tint)}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--dim);margin-bottom:14px}
.footer-col>a{
  display:block;font-size:14px;color:var(--muted);line-height:2.1;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col>a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.footer-form input{
  flex:1 1 170px;height:48px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--panel);border:1px solid rgba(255,255,255,.1);color:var(--text);
}
.footer-form input::placeholder{color:var(--dim)}
.footer-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,.18)}
.footer-bottom{
  margin-top:44px;padding:20px 0 26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:12.5px;color:var(--dim);line-height:1.8;letter-spacing:.02em}
.footer-record{color:#5A5075}

@media (max-width:520px){
  .banner-copy h1{font-size:28px}
  .timeline{padding-left:52px}
  .step-index{left:-52px;width:36px;height:36px;font-size:13px}
  .timeline::before{left:17px}
  .btn{padding:0 18px;font-size:14px}
}

/* roulang page: category2 */
:root{
    --bg:#0E0A18; --bg-deep:#0B0714; --panel:#171026; --panel-hi:#1E1533;
    --line:#2A1F42; --stroke:rgba(255,255,255,.08);
    --brand:#FF6B2C; --brand-deep:#E4551B; --brand-light:#FF9A5E; --brand-soft:rgba(255,107,44,.12);
    --cyan:#2FD6C0; --cyan-soft:rgba(47,214,192,.12);
    --lemon:#FFD25A;
    --text:#EDE9F7; --sub:#A79BC0; --mute:#6F6489;
    --r-lg:18px; --r-sm:14px; --r-pill:999px;
    --sh-card:0 10px 30px rgba(0,0,0,.45);
    --sh-hover:0 18px 44px rgba(255,107,44,.18);
    --sh-btn:0 8px 24px rgba(255,107,44,.35);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0; background:var(--bg); color:var(--text);
    font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px; line-height:1.85; -webkit-font-smoothing:antialiased;
  }
  a{color:inherit; text-decoration:none;}
  img{max-width:100%; display:block;}
  button{font-family:inherit; cursor:pointer;}
  input{font-family:inherit;}
  ul,ol,dl,dd{margin:0; padding:0; list-style:none;}
  h1,h2,h3,p{margin:0;}
  ::selection{background:rgba(255,107,44,.35);}
  :focus-visible{outline:2px solid var(--cyan); outline-offset:2px; box-shadow:0 0 0 3px rgba(47,214,192,.25);}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
  .no-bar{scrollbar-width:none;-ms-overflow-style:none;}
  .no-bar::-webkit-scrollbar{display:none;}

  .container{width:100%; max-width:1240px; margin:0 auto; padding:0 16px;}
  @media(min-width:768px){.container{padding:0 24px;}}
  @media(min-width:1024px){.container{padding:0 32px;}}

  .section{padding:56px 0;}
  @media(min-width:768px){.section{padding:80px 0;}}
  @media(min-width:1024px){.section{padding:96px 0;}}
  .section-tight{padding:44px 0;}
  .divider{height:1px; background:var(--line); border:0;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky; top:0; z-index:50;
    background:rgba(14,10,24,.86);
    -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
    border-bottom:1px solid var(--stroke);
    transition:box-shadow 240ms var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,.5);}
  .header-inner{display:flex; align-items:center; justify-content:space-between; gap:20px; height:68px;}
  @media(min-width:1024px){.header-inner{height:76px;}}
  .brand{display:inline-flex; align-items:center; gap:10px; flex-shrink:0;}
  .brand-mark{
    width:34px; height:34px; border-radius:10px; display:grid; place-items:center;
    background:linear-gradient(135deg,#FF7A33,#E4551B); color:#1A0F0A;
    font-size:18px; font-weight:800; line-height:1;
  }
  .brand-text{font-size:19px; font-weight:800; letter-spacing:-.01em; color:var(--text); white-space:nowrap;}
  .nav-links{display:none;}
  @media(min-width:1024px){.nav-links{display:flex; align-items:center; gap:2px;}}
  .nav-link{
    position:relative; display:inline-flex; align-items:center;
    padding:9px 12px; font-size:15px; color:var(--sub); border-radius:var(--r-pill);
    transition:color 220ms var(--ease), background 220ms var(--ease);
  }
  .nav-link::after{
    content:""; position:absolute; left:12px; right:12px; bottom:3px; height:2px;
    background:var(--cyan); transform:scaleX(0); transform-origin:left;
    transition:transform 240ms var(--ease);
  }
  .nav-link:hover{color:var(--text);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--text); padding-left:22px;}
  .nav-link.is-active::before{
    content:""; position:absolute; left:9px; top:50%; transform:translateY(-50%);
    width:6px; height:6px; border-radius:50%; background:var(--brand);
  }
  .nav-chip{background:var(--cyan-soft); color:#84EADD;}
  .nav-chip:hover{color:#B9F6EE;}
  .header-actions{display:flex; align-items:center; gap:10px;}
  .icon-btn{
    width:44px; height:44px; border-radius:50%; display:grid; place-items:center;
    background:transparent; border:1px solid rgba(255,255,255,.18); color:var(--sub);
    transition:all 220ms var(--ease);
  }
  .icon-btn:hover{color:var(--text); border-color:var(--brand); background:rgba(255,255,255,.06);}
  .hamburger{
    width:44px; height:44px; border-radius:12px; display:grid; place-items:center;
    background:transparent; border:1px solid rgba(255,255,255,.18); color:var(--text);
  }
  @media(min-width:1024px){.hamburger{display:none;}}
  .btn-primary{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:44px; padding:0 22px; border-radius:var(--r-pill); border:0;
    background:linear-gradient(135deg,#FF7A33,#E4551B); color:#1A0F0A;
    font-size:15px; font-weight:700; letter-spacing:.01em;
    box-shadow:var(--sh-btn); transition:all 220ms var(--ease);
  }
  .btn-primary:hover{filter:brightness(1.06); transform:translateY(-2px); box-shadow:0 12px 30px rgba(255,107,44,.45);}
  .btn-primary:active{transform:scale(.98);}
  .btn-ghost{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:44px; padding:0 22px; border-radius:var(--r-pill);
    background:transparent; border:1px solid rgba(255,255,255,.18); color:var(--text);
    font-size:15px; font-weight:600; transition:all 220ms var(--ease);
  }
  .btn-ghost:hover{border-color:var(--brand); background:rgba(255,255,255,.06); transform:translateY(-2px);}
  .btn-text{display:inline-flex; align-items:center; gap:6px; color:var(--cyan); font-size:15px; font-weight:600;}
  .btn-text svg{transition:transform 220ms var(--ease);}
  .btn-text:hover{text-decoration:underline; text-underline-offset:4px;}
  .btn-text:hover svg{transform:translateX(4px);}
  .nav-cta{display:none;}
  @media(min-width:768px){.nav-cta{display:inline-flex;}}

  /* ---------- drawer ---------- */
  .drawer{
    position:fixed; inset:0; z-index:60; background:var(--panel);
    transform:translateY(-100%); transition:transform 300ms var(--ease);
    display:flex; flex-direction:column; overflow-y:auto;
  }
  .drawer.is-open{transform:translateY(0);}
  .drawer-top{display:flex; align-items:center; justify-content:space-between; padding:14px 16px; border-bottom:1px solid var(--line);}
  .drawer-links{display:flex; flex-direction:column; padding:8px 0;}
  .drawer-links a{padding:0 20px; font-size:18px; line-height:56px; color:var(--sub); border-bottom:1px solid var(--line);}
  .drawer-links a.is-active{color:var(--text); box-shadow:inset 6px 0 0 var(--brand); padding-left:26px;}
  .drawer-bottom{margin-top:auto; padding:16px;}
  .drawer-bottom .btn-primary{width:100%;}
  @media(min-width:1024px){.drawer{display:none;}}

  /* ---------- banner ---------- */
  .page-banner{
    position:relative; min-height:260px; display:flex; align-items:center;
    border-bottom:1px solid var(--line);
    background-image:linear-gradient(90deg, rgba(14,10,24,.95) 0%, rgba(14,10,24,.78) 42%, rgba(14,10,24,.34) 100%), url('/assets/images/backpic/back-2.png');
    background-size:cover; background-position:center 38%; background-repeat:no-repeat;
  }
  @media(min-width:768px){.page-banner{min-height:300px;}}
  .banner-inner{display:flex; flex-direction:column; gap:20px; padding:48px 0;}
  @media(min-width:1024px){.banner-inner{flex-direction:row; align-items:flex-end; justify-content:space-between; gap:40px; padding:60px 0;}}
  .banner-copy{max-width:660px;}
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px; height:26px; padding:0 12px;
    border-radius:var(--r-pill); background:var(--cyan-soft); color:#84EADD;
    font-size:12px; letter-spacing:.06em; margin-bottom:16px;
  }
  .banner-copy h1{font-size:clamp(28px,4.4vw,46px); font-weight:800; line-height:1.15; letter-spacing:-.02em;}
  .banner-copy p{margin-top:14px; font-size:16px; color:var(--sub); line-height:1.8; max-width:600px;}
  .banner-badge{
    display:inline-flex; flex-direction:column; gap:6px; padding:16px 20px;
    border-radius:var(--r-lg); background:rgba(23,16,38,.82); border:1px solid var(--stroke);
  }
  .banner-badge strong{font-size:22px; font-weight:800; color:var(--lemon); letter-spacing:-.01em;}
  .banner-badge span{font-size:12px; color:var(--mute); letter-spacing:.04em;}

  /* ---------- section head ---------- */
  .section-head{display:flex; flex-direction:column; gap:10px; margin-bottom:28px;}
  @media(min-width:1024px){.section-head{flex-direction:row; align-items:flex-end; justify-content:space-between; gap:32px;}}
  .section-head h2{font-size:clamp(23px,3vw,34px); font-weight:700; line-height:1.25; letter-spacing:-.01em;}
  .section-head .hint{font-size:13px; color:var(--mute); margin-top:8px; letter-spacing:.02em;}

  /* ---------- chips ---------- */
  .chips{display:flex; gap:10px; overflow-x:auto; padding-bottom:6px; margin-bottom:22px;}
  .chip{
    flex:0 0 auto; height:36px; padding:0 18px; border-radius:var(--r-pill);
    background:transparent; border:1px solid rgba(255,255,255,.14); color:var(--sub);
    font-size:14px; transition:all 220ms var(--ease);
  }
  .chip:hover{color:var(--text); border-color:rgba(255,255,255,.3);}
  .chip.is-on{background:linear-gradient(135deg,#FF7A33,#E4551B); border-color:transparent; color:#1A0F0A; font-weight:700;}

  /* ---------- update log ---------- */
  .log-list{border-top:1px solid var(--line);}
  .log-row{
    display:grid; grid-template-columns:1fr; gap:14px;
    padding:22px 4px; border-bottom:1px solid var(--line);
    border-radius:var(--r-sm); transition:background 220ms var(--ease), padding 220ms var(--ease);
  }
  .log-row:hover{background:var(--panel); padding-left:16px; padding-right:16px;}
  @media(min-width:768px){
    .log-row{grid-template-columns:104px 1fr 118px; align-items:start; gap:26px; padding:26px 8px;}
    .log-row:hover{padding-left:20px; padding-right:20px;}
  }
  .log-date{display:flex; align-items:baseline; gap:8px;}
  @media(min-width:768px){.log-date{flex-direction:column; gap:4px;}}
  .log-date-main{font-size:26px; font-weight:800; color:var(--lemon); letter-spacing:-.01em; line-height:1;}
  .log-date-sub{font-size:12px; color:var(--mute); letter-spacing:.06em;}
  .log-titleline{display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:8px;}
  .ver-badge{
    display:inline-flex; align-items:center; height:24px; padding:0 10px; border-radius:var(--r-pill);
    background:var(--brand-soft); color:var(--brand-light); font-size:12px; font-weight:700; letter-spacing:.04em;
  }
  .log-title{font-size:18px; font-weight:600; line-height:1.4; color:var(--text);}
  .log-summary{
    font-size:15px; color:var(--sub); line-height:1.8;
    display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
  }
  .log-meta{margin-top:10px; font-size:12px; color:var(--mute); letter-spacing:.02em;}
  .log-action{display:flex; align-items:flex-start;}
  @media(min-width:768px){.log-action{justify-content:flex-end; padding-top:4px;}}

  /* ---------- split ---------- */
  .split{display:grid; grid-template-columns:1fr; gap:32px;}
  @media(min-width:1024px){.split{grid-template-columns:1.15fr .85fr; gap:48px; align-items:start;}}
  .panel-figure{border-radius:var(--r-sm); overflow:hidden; background:var(--panel-hi); box-shadow:var(--sh-card);}
  .panel-figure img{width:100%; height:100%; object-fit:cover; aspect-ratio:16/9;}
  .split-title{font-size:clamp(22px,2.6vw,30px); font-weight:700; line-height:1.3; margin-bottom:14px;}
  .split-copy p{font-size:16px; color:var(--sub); line-height:1.85; margin-bottom:14px;}
  .checklist{display:flex; flex-direction:column; gap:14px;}
  .check-item{
    display:flex; gap:14px; padding:16px 18px; border-radius:var(--r-sm);
    background:rgba(255,255,255,.03); border:1px solid var(--stroke);
    transition:border-color 220ms var(--ease), transform 220ms var(--ease);
  }
  .check-item:hover{border-color:rgba(255,107,44,.5); transform:translateY(-2px);}
  .num{
    flex:0 0 30px; width:30px; height:30px; border-radius:50%; display:grid; place-items:center;
    background:var(--cyan-soft); color:var(--cyan); font-size:13px; font-weight:700;
  }
  .check-item h3{font-size:17px; font-weight:600; line-height:1.4; margin-bottom:4px;}
  .check-item p{font-size:14px; color:var(--sub); line-height:1.75;}

  /* ---------- definition list ---------- */
  .dl-grid{display:grid; grid-template-columns:1fr; gap:0; border-top:1px solid var(--line);}
  @media(min-width:768px){.dl-grid{grid-template-columns:1fr 1fr; column-gap:40px;}}
  .dl-item{display:grid; grid-template-columns:1fr; gap:6px; padding:20px 4px; border-bottom:1px solid var(--line);}
  @media(min-width:768px){.dl-item{grid-template-columns:130px 1fr; gap:18px; align-items:baseline;}}
  .dl-term{font-size:15px; font-weight:600; color:var(--cyan);}
  .dl-desc{font-size:15px; color:var(--sub); line-height:1.8;}

  /* ---------- faq ---------- */
  .faq-list{display:flex; flex-direction:column; gap:12px;}
  .faq-item{
    border:1px solid var(--stroke); border-radius:var(--r-lg); background:var(--panel);
    transition:border-color 220ms var(--ease), background 220ms var(--ease);
  }
  .faq-item:hover{border-color:rgba(255,255,255,.18);}
  .faq-item[open]{border-color:rgba(255,107,44,.5); border-left:3px solid var(--brand);}
  .faq-q{
    list-style:none; cursor:pointer; display:flex; align-items:center; justify-content:space-between;
    gap:18px; padding:20px 22px; font-size:17px; font-weight:600; line-height:1.5;
  }
  .faq-q::-webkit-details-marker{display:none;}
  .faq-plus{position:relative; flex:0 0 22px; width:22px; height:22px;}
  .faq-plus::before,.faq-plus::after{content:""; position:absolute; inset:0; margin:auto; background:var(--brand);}
  .faq-plus::before{width:14px; height:2px;}
  .faq-plus::after{width:2px; height:14px; transition:transform 260ms var(--ease), opacity 260ms var(--ease);}
  .faq-item[open] .faq-plus::after{transform:scaleY(0); opacity:0;}
  .faq-a{padding:0 22px 20px; font-size:15px; color:var(--sub); line-height:1.85;}
  .faq-a a{color:var(--cyan); text-decoration:underline; text-underline-offset:3px;}

  /* ---------- cta band ---------- */
  .cta-band{
    position:relative; overflow:hidden; border-radius:var(--r-lg);
    background:var(--panel-hi); border:1px solid var(--stroke);
    padding:34px 24px;
  }
  .cta-band::before,.cta-band::after{content:""; position:absolute; width:420px; height:420px; border-radius:50%; pointer-events:none;}
  .cta-band::before{top:-220px; left:-120px; background:radial-gradient(circle,rgba(47,214,192,.12),transparent 68%);}
  .cta-band::after{bottom:-240px; right:-140px; background:radial-gradient(circle,rgba(255,107,44,.12),transparent 68%);}
  .cta-inner{position:relative; z-index:1; display:flex; flex-direction:column; gap:24px;}
  @media(min-width:1024px){.cta-inner{flex-direction:row; align-items:center; justify-content:space-between; gap:48px;}}
  .cta-inner h2{font-size:clamp(22px,2.8vw,32px); font-weight:700; line-height:1.3;}
  .cta-inner .hint{font-size:13px; color:var(--mute); margin-top:10px;}
  .cta-form{display:flex; flex-direction:column; gap:10px; width:100%;}
  @media(min-width:640px){.cta-form{flex-direction:row; align-items:center;}}
  @media(min-width:1024px){.cta-form{width:auto; min-width:440px;}}
  .field{
    height:48px; width:100%; padding:0 20px; border-radius:var(--r-pill);
    background:var(--panel); border:1px solid rgba(255,255,255,.1); color:var(--text); font-size:15px;
    transition:border-color 220ms var(--ease), box-shadow 220ms var(--ease);
  }
  .field::placeholder{color:var(--mute);}
  .field:focus{outline:none; border-color:var(--cyan); box-shadow:0 0 0 3px rgba(47,214,192,.18);}

  /* ---------- ending row ---------- */
  .ending{display:flex; flex-direction:column; gap:16px; align-items:flex-start; padding:36px 0 0;}
  @media(min-width:768px){.ending{flex-direction:row; align-items:center; justify-content:space-between;}}

  /* ---------- footer ---------- */
  .site-footer{background:var(--bg-deep); border-top:1px solid var(--line); margin-top:64px;}
  .footer-grid{display:grid; grid-template-columns:1fr; gap:34px; padding:56px 0 40px;}
  @media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px;}}
  .footer-col h3{font-size:14px; font-weight:600; letter-spacing:.06em; color:var(--mute); margin-bottom:16px;}
  .footer-col a{display:block; font-size:14px; line-height:2.1; color:var(--sub); transition:color 200ms var(--ease), transform 200ms var(--ease);}
  .footer-col a:hover{color:var(--cyan); transform:translateX(3px);}
  .footer-brand{display:inline-flex; align-items:center; gap:10px; margin-bottom:14px;}
  .footer-brand .brand-mark{width:30px; height:30px; font-size:16px; border-radius:9px;}
  .footer-brand .brand-text{font-size:17px;}
  .footer-desc{font-size:14px; color:var(--sub); line-height:1.9; max-width:320px;}
  .footer-social{display:flex; gap:10px; margin-top:18px;}
  .footer-social a{
    width:38px; height:38px; border-radius:50%; display:grid; place-items:center;
    border:1px solid rgba(255,255,255,.18); color:var(--sub); transition:all 220ms var(--ease);
  }
  .footer-social a:hover{color:var(--text); border-color:var(--brand); transform:translateY(-2px);}
  .footer-form{display:flex; gap:10px; margin-top:14px;}
  .footer-form .field{height:46px; padding:0 16px; font-size:14px;}
  .footer-submit{
    flex:0 0 auto; height:46px; padding:0 20px; border:0; border-radius:var(--r-pill);
    background:linear-gradient(135deg,#FF7A33,#E4551B); color:#1A0F0A; font-weight:700; font-size:14px;
    transition:all 220ms var(--ease);
  }
  .footer-submit:hover{filter:brightness(1.06); transform:translateY(-2px);}
  .footer-bottom{
    display:flex; flex-direction:column; gap:12px; align-items:flex-start;
    padding:20px 0 32px; border-top:1px solid var(--line); font-size:13px; color:var(--mute);
  }
  @media(min-width:768px){.footer-bottom{flex-direction:row; align-items:center; justify-content:space-between;}}
  .to-top{
    display:inline-flex; align-items:center; gap:8px; height:38px; padding:0 18px;
    border-radius:var(--r-pill); background:transparent; border:1px solid rgba(255,255,255,.18);
    color:var(--sub); font-size:13px; transition:all 220ms var(--ease);
  }
  .to-top:hover{color:var(--text); border-color:var(--brand); background:rgba(255,255,255,.06);}

  .fade-up{opacity:0; transform:translateY(12px); animation:fadeUp 380ms var(--ease) forwards;}
  @keyframes fadeUp{to{opacity:1; transform:translateY(0);}}

/* roulang page: category3 */
:root{
  --bg:#0E0A18;--bg-deep:#0B0714;--panel:#171026;--panel-hi:#1E1533;
  --line:rgba(255,255,255,.08);--divider:#2A1F42;
  --brand:#FF6B2C;--brand-dark:#E4551B;--brand-light:#FF9A5E;--brand-soft:rgba(255,107,44,.12);
  --cyan:#2FD6C0;--cyan-soft:rgba(47,214,192,.12);
  --lemon:#FFD25A;
  --text:#EDE9F7;--muted:#A79BC0;--faint:#6F6489;
  --r-lg:18px;--r-md:14px;--r-pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 18px 44px rgba(255,107,44,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;box-shadow:0 0 0 3px rgba(47,214,192,.25)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;height:72px;
  background:rgba(14,10,24,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);transition:box-shadow .26s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,.5)}
.header-inner{height:100%;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:12px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;
  font-weight:800;font-size:18px;line-height:1;
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 12px;font-size:16px;color:var(--muted);
  border-radius:var(--r-pill);transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--cyan);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text);font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.nav-chip{background:rgba(255,255,255,.06);color:var(--text);font-weight:600}
.nav-chip:hover{background:var(--brand-soft)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:16px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid rgba(255,255,255,.18);color:var(--text);cursor:pointer;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);background:rgba(255,255,255,.06)}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;background:transparent;
  border:1px solid rgba(255,255,255,.18);cursor:pointer;align-items:center;justify-content:center;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
@media (max-width:1023px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .header-actions .btn{display:none}
}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--panel);
  transform:translateY(-100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-head{
  height:72px;flex:none;display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;border-bottom:1px solid var(--line);
}
.drawer-nav{padding:8px 16px;overflow-y:auto;flex:1}
.drawer-nav a{
  display:block;font-size:18px;line-height:56px;border-bottom:1px solid var(--line);color:var(--muted);
}
.drawer-nav a.is-active{color:var(--brand-light);font-weight:700}
.drawer-cta{padding:16px;border-top:1px solid var(--line);flex:none}
.drawer-cta .btn{width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),filter .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;box-shadow:0 8px 24px rgba(255,107,44,.35)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,107,44,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--brand)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.text-link{color:var(--cyan);font-weight:600;display:inline-flex;align-items:center;gap:6px;font-size:15px}
.text-link em{font-style:normal;transition:transform .22s var(--ease)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.text-link:hover em{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;letter-spacing:.02em;font-weight:600;
}
.badge-cyan{background:var(--cyan-soft);color:var(--cyan)}
.badge-brand{background:var(--brand);color:#1A0F0A}
.badge-lemon{background:rgba(255,210,90,.14);color:var(--lemon)}
.badge-muted{background:rgba(255,255,255,.06);color:var(--muted)}

/* ---------- banner ---------- */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:72% 28%;opacity:.6;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to right,rgba(14,10,24,.96) 0%,rgba(14,10,24,.78) 46%,rgba(14,10,24,.44) 100%),
             linear-gradient(to top,rgba(14,10,24,1) 0%,rgba(14,10,24,0) 62%);
}
.banner-inner{
  position:relative;z-index:2;min-height:300px;display:flex;align-items:flex-end;
  justify-content:space-between;gap:32px;flex-wrap:wrap;padding:76px 0 52px;
}
.banner-copy{max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--cyan);background:var(--cyan-soft);padding:6px 12px;border-radius:var(--r-pill);
}
.page-title{
  margin:18px 0 14px;font-size:clamp(30px,5vw,50px);font-weight:800;line-height:1.15;
  letter-spacing:-.02em;color:var(--text);
}
.page-sub{font-size:17px;color:var(--muted);max-width:560px;margin:0}
.badge-stat{
  display:flex;align-items:center;gap:10px;padding:14px 20px;border-radius:var(--r-pill);
  background:rgba(23,16,38,.78);border:1px solid var(--line);font-size:13px;color:var(--muted);
}
.badge-stat strong{font-size:20px;font-weight:800;color:var(--lemon)}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:80px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.section-title{margin:0;font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.section-desc{margin:8px 0 0;font-size:13px;color:var(--faint);letter-spacing:.02em}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:22px}
.bento-main{
  position:relative;grid-row:span 2;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);min-height:420px;
  box-shadow:var(--shadow);transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.bento-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.bento-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,7,20,.95) 0%,rgba(11,7,20,.72) 38%,rgba(11,7,20,.12) 100%);
}
.bento-main-body{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;gap:12px}
.bento-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.bento-main:hover img{transform:scale(1.04)}
.bento-main-title{margin:0;font-size:24px;font-weight:700;line-height:1.35;color:var(--text)}
.bento-main-text{margin:0;font-size:15px;color:var(--muted);max-width:520px}
.bento-side{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-content:start}
.bento-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,107,44,.32)}
.bento-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-hi)}
.bento-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.bento-card:hover .bento-thumb img{transform:scale(1.04)}
.bento-body{padding:18px 20px 20px}
.card-title{margin:0 0 8px;font-size:17px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{margin:0;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:12px;color:var(--faint);letter-spacing:.02em}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.step-item{position:relative;padding-top:22px;border-top:1px solid var(--divider)}
.step-item::before{
  content:"";position:absolute;top:-1px;left:0;width:56px;height:2px;
  background:linear-gradient(90deg,var(--brand),rgba(255,107,44,0));
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-light);font-size:13px;font-weight:800;margin-bottom:12px;
}
.step-title{margin:0 0 8px;font-size:17px;font-weight:700;line-height:1.4}
.step-text{margin:0;font-size:14px;color:var(--muted)}
@media (max-width:1023px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.steps{grid-template-columns:1fr}}

/* ---------- databar ---------- */
.databar{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--line);
}
.data-item{background:var(--panel);padding:24px 22px}
.data-num{font-size:30px;font-weight:800;line-height:1.2;color:var(--brand-light)}
.data-label{margin:6px 0 0;font-size:13px;color:var(--muted)}
@media (max-width:640px){.databar{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--r-md);margin-bottom:12px;transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item[open]{border-color:rgba(255,107,44,.5);border-left:3px solid var(--brand);background:var(--panel-hi)}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;
  gap:16px;padding:18px 20px;font-size:17px;font-weight:600;line-height:1.5;
}
.faq-q::-webkit-details-marker{display:none}
.faq-mark{position:relative;width:16px;height:16px;flex:none;margin-top:7px}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-mark::before{left:0;top:7px;width:16px;height:2px}
.faq-mark::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-mark::after{transform:rotate(90deg);opacity:0}
.faq-a{margin:0;padding:0 20px 20px;font-size:15px;color:var(--muted)}
@media (max-width:640px){.faq-q{font-size:16px;padding:16px}}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--panel-hi);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:34px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(47,214,192,.12),rgba(47,214,192,0) 70%);
}
.cta-band::after{
  content:"";position:absolute;width:380px;height:380px;left:-160px;bottom:-200px;
  background:radial-gradient(circle,rgba(255,107,44,.12),rgba(255,107,44,0) 70%);
}
.cta-copy,.cta-form{position:relative;z-index:2}
.cta-copy{max-width:520px}
.cta-copy h2{margin:0 0 10px;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta-copy p{margin:0;font-size:15px;color:var(--muted)}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;min-width:300px;flex:1 1 320px}
.cta-form input,.footer-form input{
  height:48px;flex:1 1 180px;min-width:0;border-radius:var(--r-pill);
  background:var(--panel);border:1px solid rgba(255,255,255,.1);padding:0 18px;color:var(--text);
  transition:border-color .22s var(--ease);
}
.cta-form input::placeholder,.footer-form input::placeholder{color:var(--faint)}
.cta-form input:focus,.footer-form input:focus{border-color:var(--cyan);outline:none}
.cta-note{width:100%;font-size:12px;color:var(--faint);letter-spacing:.02em}
@media (max-width:768px){
  .cta-band{padding:26px 20px}
  .cta-form .btn{width:100%}
}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:32px;height:32px;font-size:16px;border-radius:10px}
.footer-brand .brand-text{font-size:17px}
.footer-desc{margin:0;font-size:14px;line-height:1.85;color:var(--muted);max-width:340px}
.footer-social{display:flex;gap:12px;margin-top:18px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.18);color:var(--muted);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.footer-social a:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.footer-col h3{
  margin:0 0 14px;font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--faint);
}
.footer-col a{display:block;font-size:14px;line-height:2.1;color:var(--muted);transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.footer-form input{flex:1 1 150px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--faint);letter-spacing:.02em;
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:20px;bottom:24px;z-index:40;
  width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;border:none;cursor:pointer;
  box-shadow:0 8px 24px rgba(255,107,44,.35);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease);
}
.back-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.back-top:hover{filter:brightness(1.06);transform:translateY(-2px)}
.end-links{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin-top:26px;padding-top:22px;border-top:1px solid var(--line);
}
@media (max-width:768px){
  .bento{grid-template-columns:1fr}
  .bento-main{grid-row:auto;min-height:320px}
  .bento-side{grid-template-columns:1fr}
  .banner-inner{padding:64px 0 40px}
}

/* roulang page: category4 */
*,*::before,*::after{box-sizing:border-box}
  :root{
    --bg:#0E0A18;
    --bg-deep:#0B0714;
    --panel:#171026;
    --panel-hi:#1E1533;
    --line:#2A1F42;
    --stroke:rgba(255,255,255,.08);
    --brand:#FF6B2C;
    --brand-d:#E4551B;
    --brand-l:#FF9A5E;
    --brand-soft:rgba(255,107,44,.12);
    --cyan:#2FD6C0;
    --cyan-soft:rgba(47,214,192,.12);
    --lemon:#FFD25A;
    --text:#EDE9F7;
    --muted:#A79BC0;
    --faint:#6F6489;
    --r-lg:18px;
    --r-md:14px;
    --r-pill:999px;
    --shadow-card:0 10px 30px rgba(0,0,0,.45);
    --shadow-hover:0 18px 44px rgba(255,107,44,.18);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  h1,h2,h3,h4,p,figure,ul{margin:0}
  ul{padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block;height:auto}
  button{font:inherit;color:inherit}
  input{font-family:inherit}
  :focus-visible{outline:2px solid var(--cyan);outline-offset:2px;box-shadow:0 0 0 3px rgba(47,214,192,.25);border-radius:6px}
  ::selection{background:rgba(255,107,44,.3);color:#fff}
  body::-webkit-scrollbar{width:10px}
  body::-webkit-scrollbar-track{background:var(--bg-deep)}
  body::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
  body::-webkit-scrollbar-thumb:hover{background:#3a2b58}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

  body .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding-left:16px;
    padding-right:16px;
  }
  @media(min-width:768px){body .container{padding-left:24px;padding-right:24px}}
  @media(min-width:1024px){body .container{padding-left:32px;padding-right:32px}}

  /* ===== 顶部导航 ===== */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(14,10,24,.86);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--stroke);
    transition:box-shadow .26s var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,.5)}
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:18px;min-height:72px;
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:36px;height:36px;border-radius:11px;
    background:linear-gradient(135deg,#FF7A33,#E4551B);
    color:#1A0F0A;font-weight:800;font-size:19px;
    display:grid;place-items:center;
    box-shadow:0 8px 20px rgba(255,107,44,.28);
  }
  .brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}

  .nav-links{display:none;align-items:center;gap:2px}
  @media(min-width:1024px){.nav-links{display:flex}}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    padding:10px 12px;font-size:16px;color:var(--muted);
    border-radius:var(--r-pill);
    transition:color .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;
    background:var(--cyan);transform:scaleX(0);transform-origin:left;
    transition:transform .24s var(--ease);
  }
  .nav-link:hover{color:var(--text)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-chip{
    background:var(--panel-hi);
    border:1px solid var(--stroke);
    padding:8px 14px;
  }
  .nav-chip:hover{background:#241a3d;border-color:rgba(255,107,44,.35)}
  .nav-link.is-active{color:var(--text)}
  .nav-link.is-active::after{transform:scaleX(1);background:var(--brand)}
  .nav-link.is-active::before{
    content:"";width:6px;height:6px;border-radius:50%;
    background:var(--brand);margin-right:7px;flex:0 0 auto;
  }

  .header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
  .header-cta{display:none}
  @media(min-width:768px){.header-cta{display:inline-flex}}
  .icon-btn{
    width:44px;height:44px;border-radius:var(--r-pill);
    border:1px solid rgba(255,255,255,.18);background:transparent;
    color:var(--text);display:grid;place-items:center;cursor:pointer;
    transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
  }
  .icon-btn:hover{background:rgba(255,255,255,.06);border-color:var(--brand);color:var(--brand-l)}
  .icon-btn:active{transform:scale(.96)}
  .menu-toggle{display:grid}
  @media(min-width:1024px){.menu-toggle{display:none}}

  /* ===== 按钮 / 链接 / 标签 ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-pill);
    font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),filter .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,#FF7A33,#E4551B);
    color:#1A0F0A;
    box-shadow:0 8px 24px rgba(255,107,44,.35);
  }
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,107,44,.45)}
  .btn-primary:active{transform:scale(.98)}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
  .btn-ghost:hover{background:rgba(255,255,255,.06);border-color:var(--brand)}
  .btn-ghost:active{transform:scale(.98)}
  .btn.is-disabled{opacity:.5;cursor:not-allowed}

  .link-arrow{
    color:var(--cyan);font-weight:600;font-size:14px;
    display:inline-flex;align-items:center;gap:6px;
    transition:color .2s var(--ease);
  }
  .link-arrow span{display:inline-block;transition:transform .22s var(--ease)}
  .link-arrow:hover{text-decoration:underline;text-underline-offset:3px}
  .link-arrow:hover span{transform:translateX(4px)}

  .pill{
    display:inline-flex;align-items:center;height:26px;padding:0 10px;
    border-radius:var(--r-pill);font-size:12px;letter-spacing:.02em;font-weight:600;
  }
  .pill-cyan{color:var(--cyan);background:var(--cyan-soft);border:1px solid rgba(47,214,192,.24)}
  .pill-brand{color:#1A0F0A;background:var(--brand);border:1px solid var(--brand)}
  .pill-lemon{color:#3A2A00;background:var(--lemon);border:1px solid var(--lemon)}
  .pill-ghost{color:var(--muted);background:rgba(255,255,255,.05);border:1px solid var(--stroke)}

  /* ===== 页头 Banner ===== */
  .page-banner{
    position:relative;overflow:hidden;
    min-height:300px;display:flex;align-items:center;
    padding:64px 0 56px;background:var(--bg-deep);
  }
  .page-banner::before{
    content:"";position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-2.png");
    background-size:cover;background-position:center 30%;
    opacity:.52;
  }
  .page-banner::after{
    content:"";position:absolute;inset:0;
    background:
      linear-gradient(90deg,rgba(14,10,24,.96) 0%,rgba(14,10,24,.74) 52%,rgba(14,10,24,.3) 100%),
      linear-gradient(to top,rgba(14,10,24,.96),rgba(14,10,24,.1) 70%);
  }
  .banner-inner{
    position:relative;z-index:2;
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:26px;flex-wrap:wrap;
  }
  .banner-copy{max-width:700px}
  .banner-copy h1{
    font-size:clamp(26px,3.6vw,40px);font-weight:800;
    line-height:1.2;letter-spacing:-.02em;margin-top:14px;
  }
  .banner-sub{margin-top:12px;font-size:16px;color:var(--muted);max-width:560px}
  .banner-stat{
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    min-width:136px;padding:16px 20px;border-radius:var(--r-lg);
    background:rgba(23,16,38,.72);
    border:1px solid var(--stroke);
    backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  }
  .banner-stat strong{font-size:30px;font-weight:800;color:var(--lemon);line-height:1.1}
  .banner-stat span{font-size:12px;color:var(--muted);letter-spacing:.02em;margin-top:4px}

  /* ===== 实时状态条 ===== */
  .status-band{background:var(--panel);border-bottom:1px solid var(--line)}
  .status-inner{display:flex;align-items:center;gap:14px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
  .live-dot{
    width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 auto;
    animation:pulse 2.2s infinite;
  }
  @keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(255,107,44,.55)}
    70%{box-shadow:0 0 0 10px rgba(255,107,44,0)}
    100%{box-shadow:0 0 0 0 rgba(255,107,44,0)}
  }
  .status-text{font-size:14px;color:var(--muted);flex:1 1 340px;line-height:1.7}
  .status-text strong{color:var(--text);font-weight:600}
  .status-time{font-size:12.5px;color:var(--faint);letter-spacing:.02em}

  /* ===== 主体双栏 ===== */
  .content-layout{
    display:grid;grid-template-columns:200px minmax(0,1fr);
    gap:44px;
    padding-top:52px;padding-bottom:8px;
  }
  .toc{position:sticky;top:96px;align-self:flex-start;width:200px}
  .toc-title{
    font-size:13px;font-weight:600;letter-spacing:.06em;
    color:var(--faint);margin-bottom:12px;
  }
  .toc a{
    display:block;padding:9px 0 9px 14px;font-size:14px;color:var(--muted);
    border-left:2px solid transparent;
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),padding .2s var(--ease);
  }
  .toc a:hover{color:var(--text)}
  .toc a.is-current{
    color:var(--brand);border-left-color:var(--brand);
    background:linear-gradient(90deg,var(--brand-soft),transparent);
  }
  .toc::-webkit-scrollbar{display:none}

  .content-main{min-width:0}
  .intro-block{margin-bottom:28px}
  .intro-block h2{font-size:clamp(24px,3.2vw,32px);font-weight:700;line-height:1.25}
  .intro-block p{margin-top:12px;font-size:15.5px;color:var(--muted);max-width:760px}

  .num-list{display:flex;flex-direction:column;gap:16px}
  .num-card{
    display:flex;gap:18px;align-items:flex-start;
    padding:22px;background:var(--panel);
    border:1px solid var(--stroke);border-radius:var(--r-lg);
    box-shadow:var(--shadow-card);
    transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
  }
  .num-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(255,107,44,.35);
    background:#1a1330;
  }
  .num-icon{
    flex:0 0 56px;width:56px;height:56px;border-radius:50%;
    background:var(--cyan-soft);border:1px solid rgba(47,214,192,.28);
    display:grid;place-items:center;color:var(--cyan);
    transition:background .24s var(--ease),border-color .24s var(--ease);
  }
  .num-card:hover .num-icon{background:rgba(47,214,192,.18);border-color:rgba(47,214,192,.5)}
  .num-body{min-width:0;flex:1 1 auto}
  .num-index{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--faint)}
  .num-body h3{font-size:18px;font-weight:700;line-height:1.45;margin-top:2px}
  .num-body p{margin-top:8px;font-size:15px;color:var(--muted);line-height:1.8}
  .num-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
  .num-card .link-arrow{margin-left:auto;padding-top:8px;flex:0 0 auto}

  .section-head{margin-bottom:22px}
  .section-head h2{font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25}
  .section-head p{margin-top:10px;font-size:13px;color:var(--faint);letter-spacing:.02em}

  /* ===== 阶段时间轴 ===== */
  .stage-section{padding:64px 0 56px;border-top:1px solid var(--line);margin-top:64px}
  .stage-track{position:relative;display:grid;grid-template-columns:1fr;gap:26px}
  .stage-track::before{display:none}
  @media(min-width:768px){
    .stage-track{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
    .stage-track::before{
      display:block;content:"";position:absolute;left:4px;right:20%;top:8px;height:1px;
      background:linear-gradient(90deg,rgba(255,107,44,.7),rgba(47,214,192,.45),transparent);
    }
  }
  .stage-item{position:relative;padding-top:30px}
  .stage-item::before{
    content:"";position:absolute;top:2px;left:0;
    width:14px;height:14px;border-radius:50%;
    background:var(--bg);border:2px solid var(--brand);
  }
  .stage-item:nth-child(2)::before{border-color:var(--cyan)}
  .stage-item:nth-child(3)::before{border-color:var(--lemon)}
  .stage-no{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand)}
  .stage-item:nth-child(2) .stage-no{color:var(--cyan)}
  .stage-item:nth-child(3) .stage-no{color:var(--lemon)}
  .stage-item h3{font-size:20px;font-weight:700;line-height:1.4;margin-top:4px}
  .stage-item p{margin-top:8px;font-size:15px;color:var(--muted)}

  /* ===== 误区图文 ===== */
  .mistake-section{border-top:1px solid var(--line)}
  .mistake-grid{display:grid;gap:28px;padding:56px 0}
  @media(min-width:1024px){
    .mistake-grid{grid-template-columns:minmax(0,430px) minmax(0,1fr);gap:48px;align-items:center;padding:72px 0}
  }
  .mistake-figure{
    border-radius:var(--r-lg);overflow:hidden;
    background:var(--panel-hi);border:1px solid var(--stroke);
  }
  .mistake-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
  .mistake-figure:hover img{transform:scale(1.04)}
  .mistake-figure figcaption{
    padding:12px 16px 16px;font-size:13px;color:var(--faint);text-align:center;line-height:1.7;
  }
  .mistake-copy h2{font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25}
  .mistake-copy > p{margin-top:10px;font-size:15px;color:var(--muted);max-width:560px}
  .mistake-list{margin-top:22px}
  .mistake-list li{
    position:relative;padding-left:22px;margin-bottom:14px;
    font-size:15.5px;color:var(--muted);line-height:1.85;
  }
  .mistake-list li strong{color:var(--text);font-weight:600}
  .mistake-list li::before{
    content:"";position:absolute;left:0;top:11px;
    width:8px;height:8px;border-radius:2px;background:var(--brand);
  }

  /* ===== FAQ ===== */
  .faq-section{padding:64px 0;border-top:1px solid var(--line)}
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
  .faq-item{
    background:var(--panel);border:1px solid var(--stroke);
    border-radius:var(--r-md);padding:0 20px;
    transition:border-color .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
  }
  .faq-item[open]{
    border-color:rgba(255,107,44,.5);
    border-left:3px solid var(--brand);
    background:#1a1330;
    box-shadow:var(--shadow-card);
  }
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:44px;padding:18px 0;font-size:16px;font-weight:600;line-height:1.6;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"＋";color:var(--brand);font-size:18px;line-height:1;flex:0 0 auto;
    transition:transform .24s var(--ease),color .24s var(--ease);
  }
  .faq-item[open] summary::after{content:"－";transform:rotate(180deg)}
  .faq-body{padding:0 0 20px;font-size:15px;color:var(--muted);line-height:1.85;max-width:760px}
  .faq-more{margin-top:20px}

  /* ===== 订阅 CTA ===== */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--panel-hi);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .cta-band::before{
    content:"";position:absolute;width:520px;height:520px;border-radius:50%;
    left:-140px;top:-220px;
    background:radial-gradient(circle,rgba(47,214,192,.12),transparent 68%);
  }
  .cta-band::after{
    content:"";position:absolute;width:520px;height:520px;border-radius:50%;
    right:-160px;bottom:-260px;
    background:radial-gradient(circle,rgba(255,107,44,.12),transparent 68%);
  }
  .cta-inner{
    position:relative;z-index:2;
    display:grid;gap:26px;padding:56px 0;
  }
  @media(min-width:1024px){
    .cta-inner{grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:48px;align-items:center;padding:64px 0}
  }
  .cta-copy h2{font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25}
  .cta-copy p{margin-top:12px;font-size:15.5px;color:var(--muted);max-width:520px}
  .cta-form{display:flex;flex-wrap:wrap;gap:12px}
  .cta-form input{
    flex:1 1 220px;height:48px;border-radius:var(--r-pill);
    background:var(--panel);border:1px solid rgba(255,255,255,.1);
    padding:0 20px;color:var(--text);font-size:14.5px;min-width:0;
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .cta-form input::placeholder{color:var(--faint)}
  .cta-form input:focus{border-color:var(--cyan);outline:none;box-shadow:0 0 0 3px rgba(47,214,192,.18)}
  .cta-form .btn{flex:1 1 100%}
  @media(min-width:640px){.cta-form .btn{flex:0 0 auto}}
  .form-tip{flex:1 1 100%;font-size:12px;color:var(--faint);letter-spacing:.02em}
  .cta-back{margin-top:4px}

  /* ===== 页脚 ===== */
  .site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding-top:56px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
  @media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand .brand-mark{
    width:32px;height:32px;border-radius:10px;font-size:17px;
  }
  .footer-brand .brand-text{font-size:17px}
  .footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px}
  .footer-social{display:flex;gap:10px;margin-top:18px}
  .footer-social a{
    width:38px;height:38px;border-radius:50%;
    border:1px solid rgba(255,255,255,.18);
    display:inline-grid;place-items:center;color:var(--muted);
    transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
  }
  .footer-social a:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-2px);background:rgba(47,214,192,.08)}
  .footer-col h3{
    font-size:14px;font-weight:600;letter-spacing:.06em;
    color:var(--faint);margin-bottom:14px;
  }
  .footer-col > a{
    display:block;font-size:14px;line-height:2.1;color:var(--muted);
    transition:color .2s var(--ease),transform .2s var(--ease);
  }
  .footer-col > a:hover{color:var(--cyan);transform:translateX(3px)}
  .footer-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
  .footer-form input{
    flex:1 1 160px;height:48px;border-radius:var(--r-pill);
    background:var(--panel);border:1px solid rgba(255,255,255,.1);
    padding:0 18px;color:var(--text);font-size:14px;min-width:0;
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .footer-form input::placeholder{color:var(--faint)}
  .footer-form input:focus{border-color:var(--cyan);outline:none;box-shadow:0 0 0 3px rgba(47,214,192,.18)}
  .footer-form .btn{height:48px}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;
    gap:16px;flex-wrap:wrap;
    border-top:1px solid var(--line);
    margin-top:44px;padding:20px 0 28px;
    font-size:12.5px;color:var(--faint);line-height:1.8;
  }
  .to-top{
    height:36px;padding:0 16px;border-radius:var(--r-pill);
    background:transparent;border:1px solid rgba(255,255,255,.18);
    color:var(--muted);font-size:12.5px;cursor:pointer;
    transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  }
  .to-top:hover{color:var(--text);border-color:var(--brand);transform:translateY(-2px)}

  /* ===== 移动端抽屉 ===== */
  .mobile-drawer{
    position:fixed;inset:0;z-index:80;
    background:#171026;
    transform:translateY(-100%);visibility:hidden;
    transition:transform .32s var(--ease),visibility .32s var(--ease);
    display:flex;flex-direction:column;
    padding:18px 20px 24px;overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateY(0);visibility:visible}
  @media(min-width:1024px){.mobile-drawer{display:none}}
  .drawer-top{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:8px;
  }
  .drawer-nav a{
    display:block;font-size:18px;line-height:56px;color:var(--muted);
    border-bottom:1px solid var(--line);
    transition:color .2s var(--ease),padding .2s var(--ease);
  }
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--text)}
  .drawer-cta{margin-top:auto;width:100%;height:52px}

  /* ===== 响应式 ===== */
  @media(max-width:1023px){
    .content-layout{grid-template-columns:minmax(0,1fr);gap:26px;padding-top:34px}
    .toc{
      position:static;width:auto;display:flex;gap:8px;
      overflow-x:auto;padding-bottom:6px;scrollbar-width:none;
    }
    .toc-title{display:none}
    .toc a{
      border-left:0;border-bottom:2px solid transparent;
      padding:8px 12px;white-space:nowrap;border-radius:var(--r-pill);
      background:var(--panel);font-size:13.5px;
    }
    .toc a.is-current{
      background:var(--brand-soft);border-bottom-color:var(--brand);
    }
    .stage-section{margin-top:44px;padding:48px 0 40px}
    .page-banner{padding:48px 0 44px;min-height:260px}
  }
  @media(max-width:639px){
    .num-card{flex-wrap:wrap;padding:18px;gap:14px}
    .num-icon{flex:0 0 48px;width:48px;height:48px}
    .num-card .link-arrow{margin-left:0;padding-top:0}
    .banner-stat{width:100%;flex-direction:row;gap:10px;justify-content:flex-start}
    .banner-stat strong{font-size:24px}
    .status-inner{gap:10px}
    .cta-band::before,.cta-band::after{display:none}
  }

/* roulang page: category5 */
:root{
  --bg:#0E0A18;
  --bg-footer:#0B0714;
  --panel:#171026;
  --panel-hi:#1E1533;
  --line:rgba(255,255,255,0.08);
  --divider:#2A1F42;
  --brand:#FF6B2C;
  --brand-deep:#E4551B;
  --brand-light:#FF9A5E;
  --brand-soft:rgba(255,107,44,0.12);
  --cyan:#2FD6C0;
  --cyan-soft:rgba(47,214,192,0.12);
  --lemon:#FFD25A;
  --text:#EDE9F7;
  --text-2:#A79BC0;
  --text-3:#6F6489;
  --radius-lg:18px;
  --radius-sm:14px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,0.45);
  --shadow-hover:0 18px 44px rgba(255,107,44,0.18);
  --shadow-btn:0 8px 24px rgba(255,107,44,0.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:240ms;
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  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;}
input,button{font-size:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  box-shadow:0 0 0 3px rgba(47,214,192,0.25);
  border-radius:8px;
}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,10,24,0.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,0.5);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,#FF7A33,#E4551B);
  color:#1A0F0A;font-weight:800;font-size:19px;
  display:grid;place-items:center;
  box-shadow:0 8px 20px rgba(255,107,44,0.3);
}
.brand-text{font-size:19px;font-weight:800;color:var(--text);letter-spacing:-0.01em;white-space:nowrap;}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:2px;}
}
.nav-link{
  position:relative;
  padding:8px 11px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--radius-pill);
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
@media (min-width:1280px){.nav-link{font-size:16px;padding:8px 13px;}}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);padding-left:22px;}
.nav-link.is-active::before{
  content:"";position:absolute;left:9px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.nav-chip{background:rgba(255,255,255,0.05);border:1px solid var(--line);}
.nav-chip:hover{border-color:rgba(255,107,44,0.45);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             filter var(--dur) var(--ease),background-color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-primary{background:linear-gradient(135deg,#FF7A33,#E4551B);color:#1A0F0A;box-shadow:var(--shadow-btn);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,107,44,0.42);}
.btn-primary:active{transform:scale(0.98);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,0.18);color:var(--text);}
.btn-ghost:hover{background:rgba(255,255,255,0.06);border-color:var(--brand);}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.icon-btn{
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.18);background:transparent;color:var(--text);
  display:grid;place-items:center;cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand-light);background:rgba(255,255,255,0.05);}
.hamburger{display:grid;}
@media (min-width:1024px){.hamburger{display:none;}.header-icon-desktop{display:grid;}}
@media (max-width:1023px){.header-icon-desktop{display:none;}}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:var(--panel);
  border-top:1px solid var(--line);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-link{
  display:block;font-size:18px;line-height:56px;padding:0 24px;
  color:var(--text-2);border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--brand-light);font-weight:700;}
.drawer-foot{padding:20px 24px 32px;}
@media (min-width:1024px){.mobile-drawer{display:none;}}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:250px;
  display:flex;align-items:center;
  background:#171026 url('/assets/images/backpic/back-3.png') center right/cover no-repeat;
}
@media (min-width:768px){.page-hero{min-height:300px;}}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,10,24,0.95) 0%,rgba(14,10,24,0.86) 42%,rgba(14,10,24,0.42) 100%);
}
.page-hero-inner{position:relative;z-index:2;width:100%;padding:44px 0;}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--cyan-soft);color:var(--cyan);
  font-size:12px;letter-spacing:0.02em;margin-bottom:16px;
}
.hero-title{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:800;line-height:1.18;letter-spacing:-0.02em;
  margin:0 0 14px;max-width:820px;
}
.hero-sub{font-size:16px;line-height:1.8;color:var(--text-2);margin:0;max-width:640px;}
.hero-badge{
  display:none;
}
@media (min-width:1024px){
  .hero-badge{
    display:inline-flex;flex-direction:column;gap:2px;
    position:absolute;right:32px;bottom:44px;z-index:3;
    padding:14px 20px;border-radius:var(--radius-sm);
    background:rgba(23,16,38,0.7);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
    font-size:12px;color:var(--text-3);letter-spacing:0.02em;
  }
  .hero-badge strong{font-size:22px;font-weight:800;color:var(--lemon);letter-spacing:0;}
}

/* ---------- search panel ---------- */
.search-section{margin-top:-30px;position:relative;z-index:5;}
.search-panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:20px;
}
.search-field{position:relative;display:flex;align-items:center;flex:1;}
.search-input{
  width:100%;height:52px;border-radius:var(--radius-pill);
  background:var(--bg);border:1px solid rgba(255,255,255,0.1);
  color:var(--text);padding:0 132px 0 20px;font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.search-input::placeholder{color:var(--text-3);}
.search-input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,0.22);}
.search-submit{position:absolute;right:6px;height:40px;padding:0 20px;font-size:14px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:rgba(255,255,255,0.03);color:var(--text-2);font-size:14px;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(255,107,44,0.5);}
.chip.is-on{background:var(--brand);border-color:transparent;color:#1A0F0A;font-weight:700;}
.search-hint{font-size:12px;color:var(--text-3);letter-spacing:0.02em;margin:14px 0 0;}

/* ---------- sections ---------- */
.section{padding:52px 0;}
@media (min-width:768px){.section{padding:68px 0;}}
@media (min-width:1024px){.section{padding:80px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.section-title{font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25;margin:0;letter-spacing:-0.01em;}
.section-note{font-size:13px;color:var(--text-3);letter-spacing:0.02em;margin:8px 0 0;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--cyan);
  transition:color var(--dur) var(--ease);
}
.text-link svg{transition:transform var(--dur) var(--ease);}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- faq ---------- */
.faq-group{margin-top:38px;}
.faq-group:first-of-type{margin-top:8px;}
.faq-group-title{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;margin:0;}
.faq-group-title .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 auto;}
.faq-group-title .count{font-size:12px;font-weight:600;color:var(--text-3);letter-spacing:0.02em;}
.faq-list{margin-top:16px;display:grid;gap:12px;}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,0.16);}
.faq-item[open]{border-color:rgba(255,107,44,0.5);border-left:3px solid var(--brand);background:var(--panel-hi);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:17px 22px;font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-toggle{position:relative;flex:0 0 auto;width:22px;height:22px;margin-top:3px;transition:transform var(--dur) var(--ease);}
.faq-toggle::before,.faq-toggle::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
.faq-toggle::before{left:0;right:0;top:10px;height:2px;}
.faq-toggle::after{top:0;bottom:0;left:10px;width:2px;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);}
.faq-item[open] .faq-toggle{transform:rotate(180deg);}
.faq-item[open] .faq-toggle::after{transform:scaleY(0);opacity:0;}
.faq-answer{
  padding:14px 22px 20px;border-top:1px solid var(--line);
  color:var(--text-2);font-size:15px;line-height:1.9;
}
.faq-item[open] .faq-answer{animation:faqIn 0.32s var(--ease);}
@keyframes faqIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.faq-answer ul{margin:12px 0 0;padding:0;list-style:none;display:grid;gap:8px;}
.faq-answer li{position:relative;padding-left:18px;}
.faq-answer li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--brand);}
.faq-tip{margin-top:12px;font-size:13px;color:var(--text-3);letter-spacing:0.02em;}
.search-empty{
  display:none;margin-top:26px;padding:28px;text-align:center;
  border:1px dashed rgba(255,255,255,0.1);border-radius:var(--radius-lg);
  color:var(--text-2);font-size:14px;
}
.search-empty strong{display:block;color:var(--text);font-size:16px;margin-bottom:6px;}

/* ---------- check split ---------- */
.check-split{display:grid;gap:28px;align-items:center;}
@media (min-width:1024px){.check-split{grid-template-columns:1.05fr 0.95fr;gap:44px;}}
.check-step{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);}
.check-step:last-child{border-bottom:0;padding-bottom:0;}
.check-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  background:var(--cyan-soft);color:var(--cyan);
  font-weight:800;font-size:15px;display:grid;place-items:center;
}
.check-step h3{margin:0 0 6px;font-size:18px;font-weight:700;line-height:1.4;}
.check-step p{margin:0;font-size:15px;color:var(--text-2);line-height:1.85;}
.check-media{border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);background:var(--panel-hi);}
.check-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 0.4s var(--ease);}
.check-media:hover img{transform:scale(1.04);}
.check-media figcaption{padding:12px 16px;font-size:13px;color:var(--text-3);letter-spacing:0.02em;border-top:1px solid var(--line);}
.check-media figure{margin:0;}

/* ---------- rank list ---------- */
.rank-block{border-top:1px solid var(--line);}
.rank-row{
  display:flex;align-items:center;gap:16px;
  padding:16px 10px;border-bottom:1px solid var(--line);
  transition:background-color var(--dur) var(--ease);
}
.rank-row:hover{background:var(--panel);}
.rank-no{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  background:rgba(255,255,255,0.05);color:var(--text-2);
}
.rank-row:nth-child(1) .rank-no{background:var(--brand);color:#1A0F0A;}
.rank-row:nth-child(2) .rank-no{background:var(--cyan-soft);color:var(--cyan);}
.rank-row:nth-child(3) .rank-no{background:rgba(255,210,90,0.14);color:var(--lemon);}
.rank-main{flex:1;min-width:0;}
.rank-main p{margin:0;font-size:16px;font-weight:600;line-height:1.5;}
.rank-main span{display:block;font-size:12px;color:var(--text-3);letter-spacing:0.02em;margin-top:4px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:0.02em;
}
.tag-cyan{background:var(--cyan-soft);color:var(--cyan);}
.tag-brand{background:var(--brand);color:#1A0F0A;font-weight:700;}
.tag-lemon{background:rgba(255,210,90,0.14);color:var(--lemon);}
.rank-row .tag{display:none;}
@media (min-width:768px){.rank-row .tag{display:inline-flex;}}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--panel-hi);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px 24px;
}
@media (min-width:768px){.cta-band{padding:48px 44px;}}
.cta-band::before{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-190px;
  background:radial-gradient(circle,rgba(47,214,192,0.12),transparent 70%);
}
.cta-band::after{
  content:"";position:absolute;width:380px;height:380px;left:-160px;bottom:-210px;
  background:radial-gradient(circle,rgba(255,107,44,0.12),transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;gap:26px;}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.15fr 0.85fr;align-items:center;gap:48px;}}
.cta-inner h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.3;margin:0 0 12px;}
.cta-inner p{margin:0;font-size:15px;color:var(--text-2);line-height:1.9;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:22px;}
.cta-form{display:flex;flex-direction:column;gap:10px;}
.cta-form input{
  height:48px;border-radius:var(--radius-pill);
  background:var(--bg);border:1px solid rgba(255,255,255,0.1);
  color:var(--text);padding:0 20px;font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,0.22);}
.cta-form .form-note{font-size:12px;color:var(--text-3);letter-spacing:0.02em;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-footer);border-top:1px solid var(--line);padding:56px 0 24px;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px;font-size:16px;box-shadow:none;}
.footer-brand .brand-text{font-size:17px;font-weight:800;}
.footer-desc{font-size:14px;line-height:1.9;color:var(--text-2);margin:0 0 18px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.16);
  display:grid;place-items:center;color:var(--text-2);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.footer-social a:hover{color:var(--brand-light);border-color:var(--brand);background:rgba(255,107,44,0.08);}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:0.06em;color:var(--text-3);margin:0 0 14px;}
.footer-col > a{display:block;font-size:14px;line-height:2.1;color:var(--text-2);transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);}
.footer-col > a:hover{color:var(--cyan);transform:translateX(3px);}
.footer-form{display:flex;gap:8px;margin-top:16px;}
.footer-form input{
  flex:1;min-width:0;height:44px;border-radius:var(--radius-pill);
  background:var(--panel);border:1px solid rgba(255,255,255,0.1);
  color:var(--text);padding:0 18px;font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,214,192,0.22);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);margin-top:40px;padding-top:20px;
  font-size:13px;color:var(--text-3);letter-spacing:0.02em;
}
.back-top{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,0.16);background:transparent;color:var(--text-2);
  font-size:13px;cursor:pointer;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.back-top:hover{color:var(--brand-light);border-color:var(--brand);background:rgba(255,107,44,0.08);}
@media (max-width:767px){
  .search-panel{padding:16px;}
  .search-field{width:100%;}
  .search-input{padding:0 20px 0 18px;}
  .search-submit{position:static;width:100%;margin-top:10px;height:46px;}
  .search-form-col{display:flex;flex-direction:column;}
  .faq-item summary{padding:15px 16px;font-size:16px;}
  .faq-answer{padding:12px 16px 18px;}
  .cta-actions .btn{width:100%;}
  .mobile-cta-block{width:100%;}
}