/* roulang page: index */
:root{
  --c-brand:#16D9A3;
  --c-brand-600:#0FBF8F;
  --c-brand-100:rgba(22,217,163,.12);
  --c-accent:#FF4D8D;
  --c-glow:#FFC24B;
  --c-ink-900:#0D1014;
  --c-ink-800:#14181F;
  --c-ink-700:#1B2029;
  --c-line:rgba(255,255,255,.08);
  --t-1:#F2F5F7;
  --t-2:#A8B3BE;
  --t-3:#6F7C89;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --shadow-card:0 12px 32px rgba(22,217,163,.16);
  --shadow-nav:0 8px 24px rgba(0,0,0,.35);
  --sec-y:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  --font-num:"Rajdhani","Barlow","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  padding-top:72px;
  background:var(--c-ink-900);
  color:var(--t-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--t-1);}
h1{font-size:clamp(2rem,4.6vw,3.25rem);font-weight:800;line-height:1.25;letter-spacing:-.01em;}
h2{font-size:clamp(1.5rem,2.6vw,2.125rem);font-weight:700;line-height:1.35;}
h3{font-size:1.125rem;font-weight:600;line-height:1.5;}
p{margin:0 0 1.25em;text-align:left;}
p:last-child{margin-bottom:0;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-brand-600);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--c-brand);
  outline-offset:2px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){
  .container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1400px){
  .container{max-width:1280px;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  height:72px;
  background:rgba(13,16,20,.72);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(13,16,20,.92);
  box-shadow:var(--shadow-nav);
  border-bottom-color:rgba(22,217,163,.28);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--t-1);
  font-weight:700;
  font-size:17px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand:hover{color:var(--t-1);}
.brand-mark{
  position:relative;
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--c-brand) 0%,#0AA9C9 100%);
  box-shadow:0 0 0 1px rgba(22,217,163,.35),0 6px 18px rgba(22,217,163,.28);
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:10px;
  border-radius:3px;
  background:var(--c-ink-900);
  transform:rotate(45deg);
}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav .nav-link{
  display:inline-block;
  padding:8px 16px;
  border-radius:10px;
  color:var(--t-2);
  font-size:15px;
  line-height:1.6;
  transition:color .2s ease,background .2s ease;
}
.main-nav .nav-link:hover{color:var(--t-1);background:rgba(255,255,255,.05);}
.main-nav .nav-link.active{color:var(--c-brand);background:var(--c-brand-100);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:12px;
  color:var(--t-1);
  font-size:18px;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  background:var(--c-brand);
  color:var(--c-ink-900);
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:700;
  line-height:1;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-brand:hover{
  background:#28E6B1;
  color:var(--c-ink-900);
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(22,217,163,.28);
}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-brand .arrow{transition:transform .22s ease;}
.btn-brand:hover .arrow{transform:translateX(2px);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  background:transparent;
  color:var(--t-1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:600;
  line-height:1;
  transition:border-color .22s ease,color .22s ease,background .22s ease,transform .22s ease;
}
.btn-ghost:hover{
  border-color:var(--c-brand);
  color:var(--c-brand);
  background:rgba(22,217,163,.08);
  transform:translateY(-1px);
}
.btn-sm{height:44px;padding:0 20px;font-size:15px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-brand);
  font-size:14.5px;
  font-weight:600;
}
.link-more span{transition:transform .22s ease;}
.link-more:hover span{transform:translateX(4px);}

/* ---------- 标签 / 徽章 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:var(--c-brand-100);
  border:1px solid rgba(22,217,163,.24);
  color:var(--c-brand);
  font-size:12px;
  letter-spacing:.08em;
  line-height:1.8;
}
.pill{
  display:inline-flex;
  align-items:center;
  padding:3px 12px;
  border-radius:var(--r-pill);
  background:var(--c-brand-100);
  color:var(--c-brand);
  font-size:12px;
  letter-spacing:.04em;
  line-height:1.8;
}
.pill-accent{background:rgba(255,77,141,.14);color:var(--c-accent);}
.pill-glow{background:rgba(255,194,75,.14);color:var(--c-glow);}
.meta-text{color:var(--t-3);font-size:13px;line-height:1.6;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:88px 0 96px;
  background-image:linear-gradient(180deg,rgba(13,16,20,.88) 0%,rgba(13,16,20,.96) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 24px);
  opacity:.55;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  width:760px;height:760px;
  right:-200px;top:-300px;
  background:radial-gradient(circle,rgba(22,217,163,.16) 0%,transparent 65%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-title{margin:20px 0 18px;}
.hero-sub{
  max-width:560px;
  color:var(--t-2);
  font-size:17px;
  line-height:1.85;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  border-top:1px solid var(--c-line);
  padding-top:22px;
}
.hero-trust li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--t-3);
  font-size:13.5px;
}
.hero-trust i{color:var(--c-brand);font-size:12px;}
.hero-visual{
  position:relative;
  margin:0;
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:20px;
  border:1px solid var(--c-line);
  background:linear-gradient(135deg,#14181F 0%,#1B2029 100%);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 44px),calc(100% - 44px) 100%,0 100%);
}
.hero-badge{
  position:absolute;
  left:24px;
  bottom:-24px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 20px;
  background:var(--c-ink-700);
  border:1px solid rgba(22,217,163,.35);
  border-radius:14px;
  box-shadow:0 12px 32px rgba(13,16,20,.6);
}
.hero-badge .num{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:var(--c-brand);
  line-height:1;
}
.hero-badge .txt{font-size:13px;color:var(--t-2);line-height:1.6;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec-y) 0;position:relative;}
.section-alt{background:var(--c-ink-800);}
.section-head{max-width:780px;margin-bottom:32px;}
.section-head h2{margin:14px 0 12px;}
.section-head p{color:var(--t-2);font-size:15.5px;line-height:1.9;margin:0;}
.section-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.section-head-row .section-head{margin-bottom:0;}

/* ---------- 痛点卡片 ---------- */
.pain-card{
  height:100%;
  padding:24px;
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.pain-card:hover{
  border-color:var(--c-brand);
  box-shadow:var(--shadow-card);
  transform:translateY(-2px);
}
.pain-icon{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--c-brand-100);
  color:var(--c-brand);
  font-size:18px;
  margin-bottom:16px;
}
.pain-card h3{margin-bottom:10px;}
.pain-card p{color:var(--t-2);font-size:14.5px;line-height:1.8;margin:0;}

/* ---------- 解决方案 ---------- */
.solution-grid{
  display:grid;
  grid-template-columns:1.45fr 1fr;
  gap:24px;
}
.solution-side{display:grid;gap:24px;align-content:start;}
.card-dark{
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.card-dark:hover{
  border-color:var(--c-brand);
  box-shadow:var(--shadow-card);
  transform:translateY(-2px);
}
.solution-main{
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
.solution-media{overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;}
.solution-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  background:linear-gradient(135deg,#14181F 0%,#1B2029 100%);
  transition:transform .5s ease;
}
.solution-main:hover .solution-media img{transform:scale(1.04);}
.solution-body{padding:24px;}
.solution-body h3{margin:12px 0 12px;}
.solution-body > p{color:var(--t-2);font-size:14.5px;line-height:1.85;}
.tick-list{margin-top:16px;display:grid;gap:10px;}
.tick-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--t-2);
  font-size:14.5px;
  line-height:1.75;
}
.tick-list i{color:var(--c-brand);font-size:13px;margin-top:6px;}
.solution-side .card-dark{padding:24px;}
.solution-side h3{margin:12px 0 10px;}
.solution-side p{color:var(--t-2);font-size:14.5px;line-height:1.8;margin:0;}

/* ---------- 数据条 ---------- */
.stats{
  position:relative;
  padding:64px 0;
  background:var(--c-ink-800);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.stats::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px);
  pointer-events:none;
}
.stats .container{position:relative;z-index:2;}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.stat{
  padding-left:20px;
  border-left:2px solid rgba(22,217,163,.35);
}
.stat-num{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(2rem,4vw,2.75rem);
  font-weight:700;
  color:var(--c-brand);
  line-height:1.1;
}
.stat-label{
  display:block;
  margin-top:6px;
  color:var(--t-2);
  font-size:14px;
  line-height:1.7;
}

/* ---------- 证言 ---------- */
.quote-card{
  height:100%;
  padding:24px;
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.quote-card:hover{
  border-color:var(--c-accent);
  box-shadow:0 12px 32px rgba(255,77,141,.14);
  transform:translateY(-2px);
}
.quote-mark{
  font-family:var(--font-num);
  font-size:36px;
  line-height:1;
  color:var(--c-accent);
  opacity:.85;
}
.quote-card p{color:var(--t-2);font-size:15px;line-height:1.9;margin:0;}
.quote-user{
  display:flex;
  align-items:center;
  gap:12px;
  border-top:1px solid var(--c-line);
  padding-top:16px;
  margin-top:auto;
}
.quote-avatar{
  width:38px;height:38px;
  flex:0 0 auto;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--c-brand-100);
  color:var(--c-brand);
  font-size:14px;
  font-weight:700;
}
.quote-user .name{display:block;color:var(--t-1);font-size:14px;line-height:1.5;}
.quote-user .role{display:block;color:var(--t-3);font-size:12.5px;line-height:1.6;}

/* ---------- 资讯卡片 ---------- */
.news-card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.news-card:hover{
  border-color:var(--c-brand);
  box-shadow:var(--shadow-card);
  transform:translateY(-2px);
}
.news-thumb{
  display:block;
  overflow:hidden;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#14181F 0%,#1B2029 100%);
}
.news-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-body h3{
  font-size:1.0625rem;
  font-weight:600;
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body h3 a{color:var(--t-1);}
.news-body h3 a:hover{color:var(--c-brand);}
.news-body p{
  color:var(--t-2);
  font-size:14.5px;
  line-height:1.8;
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body .link-more{margin-top:auto;padding-top:6px;}

/* ---------- 空态 ---------- */
.empty-state{
  padding:48px 24px;
  text-align:center;
  background:var(--c-ink-700);
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
}
.empty-mark{
  display:block;
  width:64px;height:64px;
  margin:0 auto 18px;
  border-radius:18px;
  background:linear-gradient(135deg,rgba(22,217,163,.18),rgba(255,77,141,.18));
  position:relative;
}
.empty-mark::after{
  content:"";
  position:absolute;
  inset:20px;
  border-radius:6px;
  background:var(--c-ink-900);
  transform:rotate(45deg);
}
.empty-state p{color:var(--t-2);font-size:15px;margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--t-1);
  font-size:16px;
  font-weight:600;
  line-height:1.7;
  padding:18px 22px;
  box-shadow:none;
  border-radius:12px;
  transition:color .22s ease,background .22s ease,box-shadow .22s ease;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-brand);
  background:rgba(22,217,163,.07);
  box-shadow:inset 3px 0 0 var(--c-brand);
}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-button::after{
  content:"";
  width:12px;height:12px;
  flex:0 0 12px;
  margin-left:auto;
  border-right:2px solid var(--t-2);
  border-bottom:2px solid var(--t-2);
  background-image:none;
  transform:rotate(45deg);
  transition:transform .25s ease,border-color .25s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  border-color:var(--c-brand);
  transform:rotate(-135deg);
}
.faq-acc .accordion-body{
  padding:0 22px 20px;
  color:var(--t-2);
  font-size:14.5px;
  line-height:1.9;
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;
  padding:72px 0;
  background:var(--c-ink-800);
  border-top:1px solid var(--c-line);
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  width:640px;height:640px;
  left:50%;bottom:-460px;
  transform:translateX(-50%);
  background:radial-gradient(circle,rgba(22,217,163,.18) 0%,transparent 65%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{margin-bottom:10px;}
.cta-inner p{color:var(--t-2);font-size:15px;margin:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink-900);
  border-top:1px solid var(--c-line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.1fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand p{
  color:var(--t-2);
  font-size:14.5px;
  line-height:1.85;
  margin:18px 0 24px;
  max-width:380px;
}
.subscribe label{
  display:block;
  font-size:13px;
  color:var(--t-3);
  margin-bottom:8px;
}
.sub-row{display:flex;gap:10px;flex-wrap:wrap;}
.sub-row input{
  flex:1 1 180px;
  min-width:0;
  height:48px;
  padding:0 14px;
  background:#101419;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  color:var(--t-1);
  font-size:14.5px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.sub-row input::placeholder{color:var(--t-3);}
.sub-row input:focus{
  outline:none;
  border-color:var(--c-brand);
  box-shadow:0 0 0 4px rgba(22,217,163,.14);
}
.sub-row .btn-brand{height:48px;padding:0 22px;font-size:15px;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  color:var(--t-1);
}
.footer-col ul{display:grid;gap:12px;}
.footer-col li{color:var(--t-2);font-size:14px;line-height:1.75;}
.footer-col a{color:var(--t-2);font-size:14px;}
.footer-col a:hover{color:var(--c-brand);}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{color:var(--t-3);font-size:13px;margin:0;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  background:var(--c-ink-800);
  border-left:1px solid var(--c-line);
  width:min(320px,86vw);
  color:var(--t-1);
}
.drawer .offcanvas-header{
  border-bottom:1px solid var(--c-line);
  padding:18px 20px;
}
.drawer .offcanvas-body{padding:12px 20px;}
.drawer-close{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:10px;
  color:var(--t-2);
  font-size:22px;
  line-height:1;
}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand);}
.drawer-link{
  display:block;
  height:52px;
  line-height:52px;
  padding:0 12px;
  color:var(--t-2);
  font-size:16px;
  border-bottom:1px solid var(--c-line);
}
.drawer-link:hover{color:var(--t-1);}
.drawer-link.active{color:var(--c-brand);}
.drawer-foot{
  padding:16px 20px 24px;
  border-top:1px solid var(--c-line);
}

/* ---------- 断点 ---------- */
@media (max-width:1199px){
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px;}
}
@media (max-width:991px){
  :root{--sec-y:72px;}
  .hero{padding:64px 0 80px;}
  .hero-visual{margin-top:16px;}
  .hero-badge{position:static;margin-top:20px;box-shadow:none;}
  .solution-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  :root{--sec-y:56px;}
  body{font-size:15.5px;}
  .hero-sub{font-size:16px;}
  .btn-brand,.btn-ghost{height:48px;padding:0 22px;font-size:15px;}
  .stats{padding:48px 0;}
  .stats-grid{
    display:grid;
    grid-auto-flow:column;
    grid-auto-columns:76%;
    grid-template-columns:none;
    overflow-x:auto;
    gap:16px;
    padding-bottom:8px;
    scroll-snap-type:x mandatory;
  }
  .stat{scroll-snap-align:start;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .hero{padding:48px 0 64px;}
  .hero-title{margin:16px 0 14px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .pain-card,.quote-card,.card-dark{padding:20px;}
  .solution-body{padding:20px;}
  .news-body{padding:20px;}
  .stats-grid{grid-auto-columns:86%;}
}

/* roulang page: category1 */
:root{
  --c-brand:#16D9A3;
  --c-brand-600:#0FBF8F;
  --c-brand-100:rgba(22,217,163,.12);
  --c-accent:#FF4D8D;
  --c-glow:#FFC24B;
  --c-ink-900:#0D1014;
  --c-ink-800:#14181F;
  --c-ink-700:#1B2029;
  --c-line:rgba(255,255,255,.08);
  --t-1:#F2F5F7;
  --t-2:#A8B3BE;
  --t-3:#6F7C89;
  --c-paper:#F6F7F9;
  --t-paper:#1D2329;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --sp-sec:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  --font-num:"Barlow","Rajdhani","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--t-1);
  background:var(--c-ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 24px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 24px);
}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease}
a:hover{color:var(--c-brand)}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;color:var(--t-1);letter-spacing:-.01em}
p{margin:0 0 1.25em;color:var(--t-2);text-align:left}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:992px){.container{padding:0 32px}}
@media (min-width:1400px){.container{max-width:1280px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(13,16,20,.72);
  border-bottom:1px solid var(--c-line);
  transition:background-color .3s ease,box-shadow .3s ease;
  backdrop-filter:blur(6px);
}
.site-header.scrolled{
  background:rgba(13,16,20,.92);
  backdrop-filter:blur(8px);
  box-shadow:0 8px 24px rgba(0,0,0,.35);
  border-top:1px solid rgba(22,217,163,.22);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-brand),#0aa87d);
  position:relative;flex:0 0 auto;
  box-shadow:0 0 0 1px rgba(22,217,163,.35),0 6px 18px rgba(22,217,163,.22);
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;
  border:2px solid #0B1310;border-radius:4px;
  border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(45deg);
}
.brand-text{
  font-size:18px;font-weight:800;letter-spacing:.02em;color:var(--t-1);
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:6px;margin:0 auto}
.main-nav .nav-link{
  position:relative;
  padding:9px 16px;
  font-size:15px;
  color:var(--t-2);
  border-radius:var(--r-pill);
  border:1px solid transparent;
  white-space:nowrap;
}
.main-nav .nav-link:hover{
  color:var(--t-1);
  background:rgba(255,255,255,.05);
}
.main-nav .nav-link.active{
  color:var(--c-brand);
  background:var(--c-brand-100);
  border-color:rgba(22,217,163,.28);
}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  background:var(--c-brand);
  color:var(--c-ink-900);
  font-size:15px;font-weight:700;
  border:none;border-radius:var(--r-btn);
  cursor:pointer;
  transition:filter .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-brand:hover{
  color:var(--c-ink-900);
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(22,217,163,.28);
}
.btn-brand:active{transform:translateY(0)}
.btn-brand .arrow{transition:transform .25s ease}
.btn-brand:hover .arrow{transform:translateX(2px)}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--c-line);
  color:var(--t-1);font-size:18px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand)}
@media (min-width:992px){.nav-toggle{display:none!important}}

/* 移动端抽屉 */
.mobile-nav{
  background:var(--c-ink-800)!important;
  color:var(--t-1);
  border-left:1px solid var(--c-line);
  width:300px;
}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.mobile-nav .offcanvas-body{padding:0 0 24px}
.mobile-nav .m-title{
  font-size:16px;font-weight:700;color:var(--t-1);
}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}
.m-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 20px;
  font-size:15px;color:var(--t-2);
  border-bottom:1px solid var(--c-line);
}
.m-list a.active{color:var(--c-brand);background:var(--c-brand-100)}
.m-list a:hover{color:var(--t-1);background:rgba(255,255,255,.04)}
.mobile-nav .m-cta{padding:20px}
.mobile-nav .m-cta .btn-brand{width:100%;height:48px}

/* ============ 分类页 Hero ============ */
.hero-cat{
  position:relative;
  padding:34px 0 46px;
  border-bottom:1px solid var(--c-line);
  background:
    radial-gradient(900px 340px at 12% 0%,rgba(22,217,163,.16),transparent 70%),
    linear-gradient(180deg,rgba(13,16,20,.86),rgba(13,16,20,.94)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 24px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 24px);
  opacity:.5;
}
.hero-cat .container{position:relative;z-index:2}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t-3);margin-bottom:18px;
  list-style:none;padding:0;
}
.crumbs a{color:var(--t-3)}
.crumbs a:hover{color:var(--c-brand)}
.crumbs .sep{color:rgba(255,255,255,.2)}
.crumbs .cur{color:var(--c-brand)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-brand-100);
  color:var(--c-brand);
  font-size:12px;letter-spacing:.08em;
  border:1px solid rgba(22,217,163,.25);
  margin-bottom:16px;
}
.hero-cat h1{
  font-size:clamp(1.85rem,3.9vw,2.7rem);
  font-weight:800;line-height:1.25;
  max-width:820px;
}
.hero-sub{
  margin-top:14px;max-width:720px;
  font-size:16px;color:var(--t-2);
}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  margin-top:22px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13.5px;color:var(--t-3);
}
.hero-points span{display:inline-flex;align-items:center;gap:7px}
.hero-points i{color:var(--c-brand)}

/* ============ 主体布局 ============ */
.section{padding:var(--sp-sec) 0;position:relative;z-index:1}
.section-alt{background:var(--c-ink-800);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.cat-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:992px){
  .cat-layout{grid-template-columns:250px 1fr;gap:44px;align-items:start}
}
.anchor-nav{position:relative}
@media (min-width:992px){
  .anchor-nav{position:sticky;top:96px;border-left:2px solid var(--c-line);padding-left:18px}
}
.anchor-nav h2{
  font-size:13px;letter-spacing:.1em;color:var(--t-3);
  font-weight:600;margin-bottom:12px;
}
.anchor-nav ul{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px}
@media (min-width:992px){
  .anchor-nav ul{display:block;overflow:visible;padding-bottom:0}
}
.anchor-nav li{flex:0 0 auto}
.anchor-nav a{
  display:block;
  padding:9px 15px;
  font-size:14px;color:var(--t-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:all .25s ease;
}
@media (min-width:992px){
  .anchor-nav a{border:none;border-radius:8px;padding:8px 12px;margin-bottom:4px}
}
.anchor-nav a:hover{color:var(--c-brand);border-color:rgba(22,217,163,.4);background:var(--c-brand-100)}
.anchor-note{
  margin-top:22px;padding:16px;
  background:var(--c-ink-700);border:1px solid var(--c-line);border-radius:var(--r-card);
  font-size:13px;color:var(--t-3);
}
@media (max-width:991px){.anchor-note{display:none}}

.block-head{margin-bottom:32px}
.block-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;line-height:1.35;
}
.block-head p{margin-top:12px;max-width:760px;font-size:15px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.1em;
  color:var(--c-accent);margin-bottom:10px;font-weight:600;
}

/* 说明卡 */
.intro-card{
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  margin-bottom:32px;
}
.intro-card h3{font-size:1.15rem;font-weight:600;margin-bottom:12px}
.intro-card p{font-size:15px}
.intro-card .hint{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--c-line);
  font-size:13.5px;color:var(--t-3);
}

/* 内容卡片（横向变体） */
.entry-list{display:grid;gap:20px}
.entry-card{
  display:grid;
  grid-template-columns:1fr;
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
@media (min-width:768px){
  .entry-card{grid-template-columns:264px 1fr}
}
.entry-card:hover{
  border-color:var(--c-brand);
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(22,217,163,.16);
}
.entry-media{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#1f2630,#12161c);
  overflow:hidden;
}
@media (min-width:768px){.entry-media{aspect-ratio:auto;height:100%;min-height:180px}}
.entry-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.entry-card:hover .entry-media img{transform:scale(1.04)}
.entry-body{padding:22px}
@media (min-width:768px){.entry-body{padding:24px}}
.entry-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.badge-soft{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-brand-100);color:var(--c-brand);
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge-warn{background:rgba(255,77,141,.12);color:var(--c-accent)}
.meta{font-size:13px;color:var(--t-3)}
.entry-body h3{font-size:1.125rem;font-weight:600;line-height:1.5;margin-bottom:10px}
.entry-body h3 a:hover{color:var(--c-brand)}
.entry-body p{font-size:14.5px;line-height:1.8;margin-bottom:16px}
.entry-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-brand);font-size:14px;font-weight:600;
}
.link-more i{transition:transform .25s ease;font-size:12px}
.link-more:hover{color:var(--c-brand-600)}
.link-more:hover i{transform:translateX(4px)}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px;font-size:12.5px;color:var(--t-3)}
.mini-tags span{padding:3px 10px;border:1px solid var(--c-line);border-radius:var(--r-pill)}

/* 检查要点条 */
.check-strip{
  display:grid;gap:14px;margin:32px 0 0;
}
@media (min-width:768px){.check-strip{grid-template-columns:repeat(2,1fr)}}
.check-item{
  display:flex;gap:14px;
  padding:18px 20px;
  background:var(--c-ink-800);
  border:1px solid var(--c-line);
  border-radius:14px;
}
.check-item i{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-brand-100);color:var(--c-brand);font-size:15px;
}
.check-item h4{font-size:15px;font-weight:600;margin-bottom:4px}
.check-item p{font-size:13.5px;color:var(--t-3);margin:0}

/* FAQ */
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:12px;
  margin-bottom:14px;
  overflow:hidden;
}
.accordion-button{
  position:relative;
  display:block;width:100%;
  padding:20px 52px 20px 22px;
  background:transparent;
  color:var(--t-1);
  font-size:16px;font-weight:600;line-height:1.6;
  text-align:left;border:none;
  box-shadow:none!important;
}
.accordion-button::after{
  content:"\f107";
  font-family:FontAwesome;
  position:absolute;right:20px;top:50%;
  transform:translateY(-50%);
  font-size:15px;color:var(--t-3);
  transition:transform .3s ease,color .3s ease;
}
.accordion-button:not(.collapsed){color:var(--c-brand)}
.accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--c-brand)}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--c-brand);border-radius:0 3px 3px 0;
}
.accordion-button:focus{outline:none}
.accordion-button:focus-visible{outline:2px solid var(--c-brand);outline-offset:-2px}
.accordion-body{
  padding:0 22px 20px;
  font-size:15px;color:var(--t-2);
  background:transparent;
}
.accordion-collapse{border-top:1px solid var(--c-line)}
.accordion-body p{margin-bottom:10px}

/* CTA 条 */
.cta-band{
  position:relative;
  padding:56px 0;
  background:
    radial-gradient(700px 260px at 82% 50%,rgba(22,217,163,.18),transparent 70%),
    linear-gradient(180deg,#161B23,#101419);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px);
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700;line-height:1.4}
.cta-inner p{margin-top:8px;font-size:15px;color:var(--t-2);max-width:620px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;
  background:transparent;
  color:var(--t-1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:all .25s ease;
}
.btn-ghost:hover{
  color:var(--c-brand);
  border-color:var(--c-brand);
  background:rgba(22,217,163,.08);
}
@media (max-width:575px){
  .btn-brand,.btn-ghost{height:48px;width:100%}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink-900);
  border-top:1px solid var(--c-line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  padding-bottom:44px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px}}
.footer-brand p{font-size:14px;color:var(--t-3);margin-top:14px;max-width:420px}
.subscribe{margin-top:20px;max-width:360px}
.subscribe label{
  display:block;font-size:13px;color:var(--t-3);margin-bottom:8px;
}
.sub-row{display:flex;gap:10px}
.sub-row input{
  flex:1 1 auto;min-width:0;
  height:46px;padding:0 14px;
  background:#101419;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  color:var(--t-1);font-size:14px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.sub-row input::placeholder{color:var(--t-3)}
.sub-row input:focus{
  outline:none;
  border-color:var(--c-brand);
  box-shadow:0 0 0 4px rgba(22,217,163,.14);
}
.sub-row .btn-brand{height:46px;padding:0 20px;flex:0 0 auto;width:auto}
@media (max-width:575px){.sub-row .btn-brand{width:auto}}
.footer-col h4{
  font-size:15px;font-weight:700;margin-bottom:16px;color:var(--t-1);
}
.footer-col ul li{
  font-size:14px;color:var(--t-3);margin-bottom:11px;line-height:1.7;
}
.footer-col ul li a{color:var(--t-3)}
.footer-col ul li a:hover{color:var(--c-brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 26px;
  border-top:1px solid var(--c-line);
  font-size:13px;color:var(--t-3);
}
.footer-bottom p{margin:0;font-size:13px;color:var(--t-3)}

/* roulang page: article */
:root{
  --c-brand:#16D9A3;
  --c-brand-600:#0FBF8F;
  --c-brand-100:rgba(22,217,163,.12);
  --c-accent:#FF4D8D;
  --c-glow:#FFC24B;
  --c-ink-900:#0D1014;
  --c-ink-800:#14181F;
  --c-ink-700:#1B2029;
  --c-line:rgba(255,255,255,.08);
  --t-1:#F2F5F7;
  --t-2:#A8B3BE;
  --t-3:#6F7C89;
  --c-paper:#F6F7F9;
  --t-paper:#1D2329;
  --t-paper-2:#4A5560;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sp-section:96px;
  --shadow-nav:0 8px 24px rgba(0,0,0,.35);
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:72px;
  background:var(--c-ink-900);
  color:var(--t-1);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
a:focus-visible,
button:focus-visible,
input:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:8px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){
  .container{padding-left:32px;padding-right:32px}
}
@media (min-width:1400px){
  .container{max-width:1280px}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  background:rgba(13,16,20,.72);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{
  background:rgba(13,16,20,.92);
  box-shadow:var(--shadow-nav);
  border-bottom-color:rgba(22,217,163,.22);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-1)}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-accent));
  position:relative;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border-radius:3px;background:var(--c-ink-900);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.main-nav{align-items:center;gap:4px}
.main-nav .nav-link{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--t-2);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.main-nav .nav-link:hover{color:var(--t-1);background:rgba(255,255,255,.05)}
.main-nav .nav-link.active{color:var(--c-brand)}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-brand);
}
.header-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);
  background:rgba(255,255,255,.03);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1);transition:background .2s}
.nav-toggle:hover{border-color:var(--c-brand)}
.nav-toggle:hover span{background:var(--c-brand)}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;
  border:0;border-radius:var(--r-btn);
  background:var(--c-brand);
  color:var(--c-ink-900);
  font-size:15px;font-weight:700;
  cursor:pointer;
  transition:filter .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(22,217,163,.28);
  color:var(--c-ink-900);
}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-brand .arrow{transition:transform .2s ease;display:inline-block}
.btn-brand:hover .arrow{transform:translateX(2px)}
.nav-cta{height:42px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.18);
  background:transparent;
  color:var(--t-1);
  font-size:15px;font-weight:600;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);background:rgba(22,217,163,.08)}

/* ============ 文章头部深色带 ============ */
.article-hero{
  position:relative;
  padding:48px 0 76px;
  background:var(--c-ink-800);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px);
  pointer-events:none;
}
.article-hero::after{
  content:"";position:absolute;top:-340px;right:-140px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(22,217,163,.16),transparent 62%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--t-3);
  margin-bottom:20px;
}
.breadcrumb-line a{color:var(--t-3);transition:color .2s ease}
.breadcrumb-line a:hover{color:var(--c-brand)}
.breadcrumb-line .sep{opacity:.5}
.breadcrumb-line .current{color:var(--c-brand)}
.article-hero h1{
  font-size:clamp(1.75rem,3.4vw,2.5rem);
  font-weight:800;
  line-height:1.25;
  max-width:920px;
  margin-bottom:20px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--t-3)}
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;
  background:var(--c-brand-100);
  color:var(--c-brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--t-3);opacity:.6}

/* ============ 主体布局 ============ */
.article-main{
  margin-top:-24px;
  padding-bottom:var(--sp-section);
  position:relative;
  z-index:2;
}
.paper-card{
  background:var(--c-paper);
  color:var(--t-paper);
  border-radius:20px;
  padding:40px 44px;
  box-shadow:0 8px 28px rgba(13,16,20,.10);
  max-width:760px;
  margin:0 auto;
}
.article-body{font-size:16px;line-height:1.9;color:var(--t-paper);text-align:left}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  font-size:1.4rem;font-weight:700;line-height:1.4;
  color:#12171c;
  margin:2.2em 0 .7em;
  padding-top:1em;
  border-top:1px solid rgba(29,35,41,.10);
  scroll-margin-top:96px;
}
.article-body h3{font-size:1.15rem;font-weight:600;color:#12171c;margin:1.7em 0 .55em;scroll-margin-top:96px}
.article-body a{color:#0b8f6e;border-bottom:1px solid rgba(15,191,143,.4);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:var(--c-brand-600);border-bottom-color:var(--c-brand-600)}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.35em}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:1.5em 0;padding:14px 18px;
  border-left:3px solid var(--c-brand-600);
  background:rgba(15,191,143,.08);
  border-radius:0 12px 12px 0;
  color:var(--t-paper-2);
}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;height:auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:13px;color:var(--t-paper-2);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid rgba(29,35,41,.12);padding:10px 12px;text-align:left}
.article-body th{background:rgba(29,35,41,.04);font-weight:600}
.article-body tbody tr:nth-child(even) td{background:rgba(29,35,41,.02)}
.article-body pre{
  background:#12161c;color:#E6EDF3;
  padding:18px 20px;border-radius:10px;
  overflow-x:auto;font-size:14px;line-height:1.7;
  margin:1.5em 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body p code,.article-body li code{
  background:rgba(29,35,41,.07);padding:1px 6px;border-radius:6px;font-size:.92em;
}
.empty-state{text-align:center;padding:48px 16px}
.empty-mark{
  width:64px;height:64px;margin:0 auto 18px;border-radius:16px;
  border:1px dashed rgba(29,35,41,.25);
  background:linear-gradient(135deg,rgba(22,217,163,.16),rgba(255,77,141,.10));
}
.empty-state h2{font-size:1.2rem;color:#12171c;margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--t-paper-2);margin-bottom:22px}
.btn-paper{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;
  background:var(--c-ink-900);color:var(--t-1);
  font-size:14.5px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-paper:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(13,16,20,.22);color:var(--t-1)}

/* ============ 标签与相关阅读 ============ */
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;
  max-width:760px;margin:24px auto 0;
}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;
  background:var(--c-brand-100);
  border:1px solid transparent;
  color:var(--c-brand);
  font-size:12.5px;font-weight:600;
  transition:border-color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--c-brand);background:rgba(22,217,163,.18)}
.related-block{max-width:760px;margin:48px auto 0}
.block-title-sm{
  font-size:1.2rem;font-weight:700;color:var(--t-1);
  margin-bottom:20px;
  display:flex;align-items:center;gap:10px;
}
.block-title-sm::before{content:"";width:3px;height:18px;border-radius:2px;background:var(--c-brand)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mini-card{
  display:block;
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.mini-card:hover{
  transform:translateY(-2px);
  border-color:var(--c-brand);
  box-shadow:0 12px 32px rgba(22,217,163,.16);
}
.mini-thumb{
  aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,#1B2029,#0D1014);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.mini-card:hover .mini-thumb img{transform:scale(1.04)}
.mini-body{padding:16px 18px}
.mini-body h3{font-size:15px;font-weight:600;color:var(--t-1);line-height:1.5;margin-bottom:6px}
.mini-body p{font-size:13.5px;color:var(--t-2);line-height:1.7;margin:0}

/* ============ 侧栏 ============ */
.side-panel{
  background:var(--c-ink-800);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  margin-bottom:20px;
}
.side-title{
  font-size:15px;font-weight:700;color:var(--t-1);
  margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--c-brand)}
.toc-list{list-style:none}
.toc-list li a{
  display:block;
  padding:9px 0;
  font-size:14px;
  color:var(--t-2);
  border-bottom:1px solid var(--c-line);
  transition:color .2s ease,padding-left .2s ease;
}
.toc-list li:last-child a{border-bottom:0}
.toc-list li a:hover{color:var(--c-brand);padding-left:4px}
.toc-empty{font-size:13.5px;color:var(--t-3);line-height:1.7}
.link-list{list-style:none}
.link-list li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;
  font-size:14.5px;color:var(--t-2);
  border-bottom:1px solid var(--c-line);
  transition:color .2s ease;
}
.link-list li:last-child a{border-bottom:0}
.link-list li a::after{content:"→";color:var(--t-3);transition:transform .2s ease,color .2s ease}
.link-list li a:hover{color:var(--c-brand)}
.link-list li a:hover::after{transform:translateX(4px);color:var(--c-brand)}
@media (min-width:1200px){
  .side-sticky{position:sticky;top:96px}
}
@media (max-width:1199.98px){
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .toc-list li{flex:0 0 auto}
  .toc-list li a{
    white-space:nowrap;padding:7px 14px;border-radius:999px;
    border:1px solid var(--c-line);background:var(--c-ink-700);
    font-size:13px;border-bottom:1px solid var(--c-line);
  }
  .toc-list li a:hover{padding-left:14px}
  .toc-empty{padding:6px 0}
}

/* ============ 底部转化条 ============ */
.cta-band{
  position:relative;
  padding:64px 0;
  background:var(--c-ink-800);
  border-top:1px solid var(--c-line);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px);
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;left:-180px;bottom:-320px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(255,77,141,.14),transparent 62%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:clamp(1.35rem,2.4vw,1.85rem);line-height:1.35;margin-bottom:8px}
.cta-band p{color:var(--t-2);font-size:15px;margin:0}

/* ============ 移动端抽屉导航 ============ */
.mobile-nav{
  background:var(--c-ink-800);
  color:var(--t-1);
  border-left:1px solid var(--c-line);
  width:300px;
}
.mobile-nav .offcanvas-header{
  border-bottom:1px solid var(--c-line);
  padding:16px 20px;
}
.mobile-nav .offcanvas-body{padding:8px 20px 20px}
.mobile-nav .nav-link{
  display:block;
  height:52px;line-height:52px;
  padding:0;
  font-size:15px;
  color:var(--t-2);
  border-bottom:1px solid var(--c-line);
  transition:color .2s ease,padding-left .2s ease;
}
.mobile-nav .nav-link:hover{color:var(--t-1);padding-left:4px}
.mobile-nav .nav-link.active{color:var(--c-brand)}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.7);opacity:.7}
.mobile-nav-foot{
  padding:16px 20px 24px;
  border-top:1px solid var(--c-line);
}
.mobile-nav-foot .btn-brand{width:100%}

/* ============ 页脚 ============ */
.site-footer{
  background:#0A0D11;
  border-top:1px solid var(--c-line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{
  color:var(--t-2);font-size:14.5px;
  max-width:400px;margin-bottom:22px;
}
.subscribe label{display:block;font-size:13px;color:var(--t-3);margin-bottom:8px}
.sub-row{display:flex;gap:10px}
.sub-row input{
  flex:1 1 auto;min-width:0;
  height:46px;padding:0 14px;
  background:#101419;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  color:var(--t-1);
  font-size:14px;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-row input::placeholder{color:var(--t-3)}
.sub-row input:focus{border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(22,217,163,.14)}
.sub-row .btn-brand{height:46px;padding:0 20px;font-size:14px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{font-size:14px;color:var(--t-2);margin-bottom:10px}
.footer-col a{color:var(--t-2);transition:color .2s ease}
.footer-col a:hover{color:var(--c-brand)}
.footer-bottom{
  margin-top:48px;
  padding:20px 0;
  border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--t-3);
}
.footer-bottom p{margin:0}

/* ============ 断点 ============ */
@media (max-width:1199.98px){
  .article-main{margin-top:-16px}
}
@media (max-width:991.98px){
  .article-hero{padding:36px 0 64px}
  .paper-card{padding:32px 28px;border-radius:18px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band{padding:52px 0}
  .footer-bottom{flex-direction:column}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .paper-card{padding:26px 20px;border-radius:16px}
  .article-hero h1{font-size:1.6rem}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* roulang page: category2 */
:root{
  --c-brand:#16D9A3;
  --c-brand-600:#0FBF8F;
  --c-brand-100:rgba(22,217,163,.12);
  --c-accent:#FF4D8D;
  --c-glow:#FFC24B;
  --c-ink-900:#0D1014;
  --c-ink-800:#14181F;
  --c-ink-700:#1B2029;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.18);
  --t-1:#F2F5F7;
  --t-2:#A8B3BE;
  --t-3:#6F7C89;
  --c-paper:#F6F7F9;
  --t-paper:#1D2329;
  --t-paper-2:#4A5560;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --sh-card:0 12px 32px rgba(22,217,163,.16);
  --sh-nav:0 8px 24px rgba(0,0,0,.35);
  --sp-section:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  --font-num:"Barlow","Rajdhani","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-ink-900);
  color:var(--t-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.01em;}
p{margin:0 0 1.25em;color:var(--t-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--c-brand);color:var(--c-ink-900);}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){
  .container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1400px){
  .container{max-width:1280px;}
}
/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  border-bottom:1px solid var(--c-line);
  background:rgba(13,16,20,.86);
  transition:background-color .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(13,16,20,.92);
  backdrop-filter:blur(8px);
  box-shadow:var(--sh-nav);
  border-bottom-color:rgba(22,217,163,.28);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:30px;height:30px;
  border-radius:9px;
  background:
    linear-gradient(135deg,var(--c-brand) 0%,var(--c-brand-600) 46%,var(--c-accent) 100%);
  position:relative;
  box-shadow:0 0 0 1px rgba(22,217,163,.35), 0 6px 18px rgba(22,217,163,.24);
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:9px;
  border-radius:3px;
  background:var(--c-ink-900);
  clip-path:polygon(0 0,100% 0,100% 55%,0 100%);
}
.brand-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--t-1);
}
.main-nav{
  flex:1;
  align-items:center;
  gap:6px;
}
.main-nav .nav-link{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--t-2);
  border:1px solid transparent;
}
.main-nav .nav-link:hover{
  color:var(--t-1);
  background:rgba(255,255,255,.05);
}
.main-nav .nav-link.active{
  color:var(--c-brand);
  background:var(--c-brand-100);
  border-color:rgba(22,217,163,.32);
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.btn-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  border:0;
  border-radius:var(--r-btn);
  background:var(--c-brand);
  color:var(--c-ink-900);
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  transition:filter .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(22,217,163,.28);
  color:var(--c-ink-900);
}
.btn-brand:active{transform:translateY(0);}
.btn-brand .arw{transition:transform .2s ease;}
.btn-brand:hover .arw{transform:translateX(2px);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:52px;
  padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line-strong);
  background:transparent;
  color:var(--t-1);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{
  border-color:var(--c-brand);
  color:var(--c-brand);
  background:rgba(22,217,163,.08);
  transform:translateY(-1px);
}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-brand);
  font-size:15px;
  font-weight:600;
}
.btn-text .arw{transition:transform .2s ease;}
.btn-text:hover{color:var(--c-brand-600);}
.btn-text:hover .arw{transform:translateX(4px);}
.nav-toggle{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--c-line-strong);
  background:transparent;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
}
.nav-toggle span{
  width:18px;height:2px;border-radius:2px;background:var(--t-1);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle:hover{border-color:var(--c-brand);}
.nav-toggle:hover span{background:var(--c-brand);}
.offcanvas.dark-drawer{
  background:var(--c-ink-800);
  color:var(--t-1);
  width:320px;
  border-left:1px solid var(--c-line);
}
.dark-drawer .offcanvas-header{
  border-bottom:1px solid var(--c-line);
  padding:18px 20px;
}
.dark-drawer .btn-close{
  filter:invert(1) grayscale(1) brightness(1.6);
  opacity:.7;
}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 20px;
  font-size:16px;
  color:var(--t-2);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a:hover{color:var(--t-1);background:rgba(255,255,255,.04);}
.drawer-nav a.active{color:var(--c-brand);background:var(--c-brand-100);}
.drawer-cta{padding:20px;margin-top:auto;}
.drawer-cta .btn-brand{width:100%;justify-content:center;}
/* ---------- hero ---------- */
.page-hero{
  position:relative;
  margin-top:72px;
  min-height:320px;
  display:flex;
  align-items:center;
  padding:64px 0 56px;
  background-image:
    linear-gradient(90deg,rgba(13,16,20,.94) 0%,rgba(13,16,20,.78) 52%,rgba(13,16,20,.62) 100%),
    radial-gradient(680px 320px at 82% 18%,rgba(22,217,163,.18),transparent 70%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px);
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t-3);
  margin-bottom:20px;
}
.crumbs a{color:var(--t-3);}
.crumbs a:hover{color:var(--c-brand);}
.crumbs .sep{color:rgba(255,255,255,.2);}
.crumbs .current{color:var(--c-brand);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--c-brand-100);
  border:1px solid rgba(22,217,163,.3);
  color:var(--c-brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(2rem,4.6vw,3.25rem);
  font-weight:800;
  line-height:1.25;
  max-width:820px;
  margin-bottom:16px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--c-brand);
}
.page-hero .lead{
  max-width:660px;
  font-size:16px;
  color:var(--t-2);
  margin-bottom:26px;
}
.hero-cta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
/* ---------- channel pills ---------- */
.channel-bar{
  padding:28px 0;
  border-bottom:1px solid var(--c-line);
  background:var(--c-ink-800);
}
.channel-pills{
  display:flex;
  gap:12px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:none;
}
.channel-pills::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);
  color:var(--t-2);
  font-size:14.5px;
  background:transparent;
  white-space:nowrap;
}
.pill:hover{
  border-color:var(--c-brand);
  color:var(--c-brand);
  background:rgba(22,217,163,.08);
}
.pill.current{
  border-color:transparent;
  background:var(--c-brand);
  color:var(--c-ink-900);
  font-weight:700;
}
/* ---------- sections ---------- */
.section{padding:var(--sp-section) 0;}
.section-head{
  max-width:760px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;
  line-height:1.35;
  margin-bottom:14px;
}
.section-head p{font-size:15.5px;}
.section-alt{background:var(--c-ink-800);}
/* ---------- timeline ---------- */
.timeline{
  position:relative;
  padding-left:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;
  top:12px;
  bottom:12px;
  width:2px;
  background:linear-gradient(180deg,rgba(22,217,163,.6),rgba(22,217,163,.06));
}
.tl-item{
  position:relative;
  display:flex;
  gap:22px;
  padding-bottom:30px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-mark{
  position:relative;
  z-index:2;
  flex:0 0 40px;
  width:40px;height:40px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-size:16px;
  font-weight:700;
  color:var(--c-brand);
  background:var(--c-ink-700);
  border:1px solid rgba(22,217,163,.35);
}
.tl-card{
  flex:1;
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.tl-card:hover{
  border-color:var(--c-brand);
  transform:translateY(-2px);
  box-shadow:var(--sh-card);
}
.tl-card h3{
  font-size:1.16rem;
  font-weight:600;
  margin-bottom:10px;
}
.tl-card p{font-size:14.5px;line-height:1.8;margin-bottom:14px;}
.tl-card .btn-text{font-size:14px;}
.tl-media{
  display:flex;
  gap:20px;
  align-items:flex-start;
}
.tl-media .tl-text{flex:1;min-width:0;}
.thumb{
  flex:0 0 210px;
  width:210px;
  border-radius:var(--r-img);
  overflow:hidden;
  background:linear-gradient(135deg,#1d2830,#14202a 60%,#1b2636);
}
.thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .5s ease;
}
.tl-card:hover .thumb img{transform:scale(1.04);}
.badge-tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-brand-100);
  color:var(--c-brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  margin-right:8px;
}
.badge-warn{
  background:rgba(255,77,141,.14);
  color:var(--c-accent);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
}
.meta-time{
  font-size:13px;
  color:var(--t-3);
  font-family:var(--font-num);
}
/* ---------- info grid ---------- */
.info-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.info-card{
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.info-card:hover{
  border-color:var(--c-brand);
  box-shadow:var(--sh-card);
  transform:translateY(-2px);
}
.info-card h3{
  font-size:1.125rem;
  font-weight:600;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.info-card h3::before{
  content:"";
  width:10px;height:10px;
  border-radius:3px;
  background:var(--c-brand);
  box-shadow:0 0 0 4px rgba(22,217,163,.14);
}
.info-card ul li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--t-2);
  margin-bottom:10px;
}
.info-card ul li:last-child{margin-bottom:0;}
.info-card ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-glow);
  opacity:.8;
}
/* ---------- stats strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--c-line);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat{
  background:var(--c-ink-800);
  padding:26px 22px;
}
.stat b{
  display:block;
  font-family:var(--font-num);
  font-size:34px;
  font-weight:700;
  line-height:1.2;
  color:var(--c-brand);
}
.stat span{
  display:block;
  margin-top:6px;
  font-size:13.5px;
  color:var(--t-3);
}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--c-ink-700);
  border:1px solid var(--c-line);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item:hover{border-color:rgba(22,217,163,.4);}
.faq-item .accordion-button{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  background:transparent;
  border:0;
  box-shadow:none;
  color:var(--t-1);
  font-size:16px;
  font-weight:600;
  text-align:left;
  line-height:1.6;
  border-radius:12px;
}
.faq-item .accordion-button:not(.collapsed){
  color:var(--c-brand);
  box-shadow:none;
  background:transparent;
}
.faq-item .accordion-button::after{
  content:"";
  flex:0 0 16px;
  width:16px;height:16px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg);
  transition:transform .25s ease;
  margin:0;
  background:none;
}
.faq-item .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-item .accordion-button:focus{outline:none;box-shadow:none;}
.faq-item .accordion-button:focus-visible{outline:2px solid var(--c-brand);outline-offset:-2px;}
.faq-item .accordion-body{
  padding:0 22px 22px;
  border-left:3px solid transparent;
  transition:border-color .25s ease;
}
.faq-item:has(.accordion-button:not(.collapsed)) .accordion-body{
  border-left-color:var(--c-brand);
}
.faq-item .accordion-body p{
  font-size:14.5px;
  line-height:1.85;
}
/* ---------- tip bar ---------- */
.tip-bar{
  display:flex;
  gap:18px;
  align-items:flex-start;
  padding:22px 24px;
  border-radius:var(--r-card);
  border:1px solid rgba(255,194,75,.28);
  background:rgba(255,194,75,.07);
}
.tip-bar .tip-mark{
  flex:0 0 34px;
  width:34px;height:34px;
  border-radius:10px;
  background:rgba(255,194,75,.16);
  color:var(--c-glow);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-family:var(--font-num);
}
.tip-bar h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;}
.tip-bar p{font-size:14.5px;margin:0;}
/* ---------- cta ---------- */
.cta-band{
  position:relative;
  border-top:1px solid var(--c-line);
  background:
    radial-gradient(600px 240px at 20% 50%,rgba(22,217,163,.16),transparent 70%),
    var(--c-ink-800);
  padding:64px 0;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px);
  opacity:.4;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  margin-bottom:8px;
}
.cta-inner p{font-size:15px;margin:0;}
/* ---------- footer ---------- */
.site-footer{
  background:var(--c-ink-900);
  border-top:1px solid var(--c-line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;max-width:420px;}
.subscribe{margin-top:24px;max-width:400px;}
.subscribe label{
  display:block;
  font-size:13px;
  color:var(--t-3);
  margin-bottom:8px;
}
.sub-row{display:flex;gap:10px;}
.sub-row input{
  flex:1;
  min-width:0;
  height:48px;
  padding:0 14px;
  border-radius:var(--r-input);
  border:1px solid var(--c-line-strong);
  background:#101419;
  color:var(--t-1);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-row input::placeholder{color:var(--t-3);}
.sub-row input:focus{
  outline:none;
  border-color:var(--c-brand);
  box-shadow:0 0 0 4px rgba(22,217,163,.14);
}
.sub-row .btn-brand{height:48px;padding:0 20px;font-size:14.5px;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--t-1);
  margin-bottom:18px;
}
.footer-col ul li{
  font-size:14.5px;
  color:var(--t-2);
  margin-bottom:12px;
}
.footer-col ul li a{color:var(--t-2);}
.footer-col ul li a:hover{color:var(--c-brand);}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{
  font-size:13px;
  color:var(--t-3);
  margin:0;
}
/* ---------- responsive ---------- */
@media (max-width:1399.98px){
  .thumb{flex:0 0 180px;width:180px;}
}
@media (max-width:1199.98px){
  .container{max-width:100%;}
}
@media (max-width:991.98px){
  :root{--sp-section:56px;}
  .page-hero{margin-top:64px;padding:48px 0 42px;min-height:280px;}
  .header-inner{height:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767.98px){
  .info-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .tl-media{flex-direction:column;}
  .thumb{flex:1 1 auto;width:100%;}
  .tl-item{gap:16px;}
  .tl-mark{flex:0 0 34px;width:34px;height:34px;font-size:14px;border-radius:10px;}
  .timeline::before{left:16px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .page-hero h1{font-size:1.75rem;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn-brand,
  .hero-cta .btn-ghost{width:100%;justify-content:center;}
  .tl-card{padding:20px;}
  .sub-row{flex-direction:column;}
  .sub-row .btn-brand{width:100%;justify-content:center;}
  .stat b{font-size:28px;}
}