/* roulang page: index */
:root{
  --ink:#0B0E13;
  --ink-2:#141A22;
  --brand:#C6FF3A;
  --brand-2:#2AE8A6;
  --grad:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  --accent:#FF6B2C;
  --accent-2:#FFC53D;
  --bg:#F4F7F1;
  --surface:#FFFFFF;
  --line:#E2E8DB;
  --t1:#0E1218;
  --t2:#5B6672;
  --t3:#8A94A0;
  --on-dark:#E8EDE6;
  --on-dark-2:#A7B0A4;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-xl:32px;
  --r-p:999px;
  --sh1:0 1px 2px rgba(14,18,24,.04),0 8px 24px rgba(14,18,24,.06);
  --sh2:0 18px 48px rgba(14,18,24,.12);
  --glow:0 0 0 1px rgba(198,255,58,.45),0 0 24px rgba(198,255,58,.30);
  --mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
time{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(198,255,58,.45);color:var(--t1)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.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}

/* ============ 顶栏导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,14,19,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--grad);
  opacity:.6;
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:700;font-size:18px;letter-spacing:.2px;white-space:nowrap}
.logo-mark{
  position:relative;width:26px;height:26px;border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 14px rgba(198,255,58,.45);
  flex:0 0 26px;
}
.logo-mark::after{content:"";position:absolute;inset:7px;border-radius:50%;background:rgba(11,14,19,.88)}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:68px;padding:0 14px;
  font-size:15px;color:#C4CCBF;
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:15px;height:2px;border-radius:2px;
  background:var(--grad);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(198,255,58,.5)}
.nav-link.is-active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(198,255,58,.6)}
.nav-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(198,255,58,.28);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .2s,background .2s;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#DCE4D6;transition:transform .25s,opacity .2s}
.menu-toggle:hover{border-color:var(--brand)}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-p);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .2s,box-shadow .25s,background .2s,color .2s,border-color .2s,filter .2s;
}
.btn-primary{background:var(--grad);color:#0B0E13;box-shadow:0 6px 20px rgba(42,232,166,.22)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--glow)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:rgba(14,18,24,.18);color:var(--t1);background:rgba(255,255,255,.7)}
.btn-ghost:hover{border-color:var(--brand-2);color:#0B7A56;background:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;filter:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:#0B7A56;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .2s,border-color .2s;
}
.link-more:hover{color:#0E1218;border-bottom-color:var(--brand-2)}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 88px;
  background:linear-gradient(180deg,#F4F7F1 0%,#EDF4E6 100%);
}
.hero::before{
  content:"";
  position:absolute;top:-190px;right:-140px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.42),rgba(42,232,166,.16) 45%,transparent 72%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(14,18,24,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(14,18,24,.05) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 88%);
  mask-image:linear-gradient(180deg,#000,transparent 88%);
  opacity:.75;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:#0B7A56;
  padding:6px 14px;border-radius:var(--r-p);
  background:rgba(42,232,166,.12);
  border:1px solid rgba(42,232,166,.28);
}
.hero-title{margin-top:20px;font-size:clamp(28px,3.4vw,42px);line-height:1.24}
.hero-sub{margin-top:18px;font-size:17px;color:var(--t2);font-weight:600}
.hero-text{margin-top:14px;font-size:15px;color:var(--t2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-p);
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh1);
  font-size:13px;color:var(--t2);
}
.badge b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:15px;color:var(--t1);font-weight:700}
.hero-visual{position:relative}
.hero-img{
  border-radius:var(--r-xl);overflow:hidden;
  aspect-ratio:7/5;
  box-shadow:var(--sh2);
  background:linear-gradient(120deg,#E4F1D6,#D2EFE0);
}
.hero-img img{width:100%;height:100%;object-fit:cover}
.hero-mini{
  position:absolute;right:-14px;bottom:-26px;
  width:212px;border-radius:var(--r-l);overflow:hidden;
  border:4px solid #fff;background:#fff;
  box-shadow:var(--sh2);
}
.hero-mini img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section--alt{background:linear-gradient(180deg,#FFFFFF 0%,#F6FAF0 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-title{margin-top:14px;font-size:clamp(24px,2.6vw,31px);line-height:1.32}
.section-desc{margin-top:10px;font-size:15px;color:var(--t2);max-width:660px}
.section-head .link-more{align-self:flex-end}

/* ============ 主推卡片网格 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.f-card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.f-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad);opacity:.45;
  transition:opacity .25s ease;
  z-index:2;
}
.f-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.f-card:hover::before{opacity:1}
.f-card:active{transform:none}
.f-card--a{grid-column:span 7}
.f-card--b{grid-column:span 5}
.f-card--c{grid-column:span 5}
.f-card--d{grid-column:span 4}
.f-card--e{grid-column:span 3}
.f-cover{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(120deg,#E7F3D8,#D6F0E2)}
.f-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.f-card:hover .f-cover img{transform:scale(1.04)}
.f-body{display:flex;flex-direction:column;gap:12px;padding:24px;flex:1}
.f-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.f-title{font-size:20px;line-height:1.4}
.f-desc{font-size:14.5px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.f-link{margin-top:auto;font-size:14px;font-weight:600;color:#0B7A56;transition:color .2s}
.f-link:hover{color:#0E1218;text-decoration:underline;text-underline-offset:3px}
.f-badge{
  position:absolute;top:16px;right:16px;z-index:3;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-p);
  background:rgba(11,14,19,.74);
  color:var(--accent-2);
  font-size:12px;font-weight:600;
  backdrop-filter:blur(6px);
}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-p);
  font-size:12px;font-weight:600;
  background:rgba(42,232,166,.12);
  color:#0B7A56;
  border:1px solid rgba(42,232,166,.3);
}
.chip--hot{background:rgba(255,107,44,.12);color:#B23A0E;border-color:rgba(255,107,44,.32)}

/* ============ 评价轮播 ============ */
.carousel-nav{display:flex;gap:10px}
.round-btn{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--t2);
  font-size:20px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh1);
  transition:color .2s,border-color .2s,box-shadow .25s,transform .2s;
}
.round-btn:hover{color:#0B7A56;border-color:var(--brand-2);box-shadow:var(--glow)}
.round-btn:active{transform:translateY(1px)}
.review-track{
  display:flex;gap:20px;
  overflow-x:auto;
  padding:6px 4px 22px;
  scroll-snap-type:x mandatory;
  cursor:grab;
  scrollbar-width:none;-ms-overflow-style:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-track.is-dragging{cursor:grabbing;scroll-snap-type:none}
.review-card{
  flex:0 0 320px;
  scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);
  border-radius:20px;padding:24px;
  box-shadow:var(--sh1);
  display:flex;flex-direction:column;gap:14px;
  transition:transform .25s,box-shadow .25s;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad);color:#0B0E13;font-weight:700;font-size:17px;
}
.review-top strong{display:block;font-size:15px}
.stars{display:block;font-size:13px;color:#0B7A56;letter-spacing:2px;font-family:var(--mono)}
.review-text{font-size:14.5px;color:var(--t2)}
.dots{display:flex;gap:8px;justify-content:center;margin-top:8px}
.dot{
  width:22px;height:6px;border-radius:var(--r-p);
  background:rgba(14,18,24,.16);
  transition:background .22s,width .22s;
}
.dot.is-active{background:var(--grad);width:34px}

/* ============ 保障条 ============ */
.guard-bar{
  background:var(--ink);
  border-radius:var(--r-l);
  padding:34px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);
  position:relative;overflow:hidden;
}
.guard-bar::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);opacity:.55;
}
.guard-item{
  display:flex;align-items:center;gap:14px;
  padding:0 22px;
  border-left:1px solid rgba(198,255,58,.18);
}
.guard-item:first-child{border-left:0;padding-left:0}
.guard-item svg{flex:0 0 22px}
.guard-item b{display:block;font-size:15px;color:var(--on-dark)}
.guard-item span{display:block;font-size:13px;color:var(--on-dark-2)}

/* ============ 最新信息列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-l);overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .25s,box-shadow .25s;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.news-card:active{transform:none}
.news-cover{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(120deg,#E7F3D8,#D6F0E2)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{display:flex;flex-direction:column;gap:12px;padding:22px 24px 24px;flex:1}
.news-title{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-desc{font-size:14px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}
.news-more{font-weight:600;color:#0B7A56}
.news-card:hover .news-more{color:#0E1218;text-decoration:underline;text-underline-offset:3px}
.empty-state{
  background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-l);padding:56px 24px;text-align:center;
  box-shadow:var(--sh1);
}
.empty-ico{display:block;font-size:30px;color:var(--t3);margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--t2);margin-bottom:18px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  position:relative;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  box-shadow:var(--sh1);
  transition:box-shadow .25s,border-color .25s;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad);opacity:.65;
}
.faq-item:hover{box-shadow:var(--sh2)}
.faq-item.is-open{border-color:rgba(42,232,166,.45)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px 20px 28px;
  font-size:16px;font-weight:600;text-align:left;color:var(--t1);
}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(14,18,24,.18);
  position:relative;
  transition:transform .25s ease,border-color .25s,background .25s;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:#0B7A56;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px;transition:transform .25s ease,opacity .2s}
.faq-item.is-open .faq-icon{background:rgba(42,232,166,.14);border-color:rgba(42,232,166,.5);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.is-open .faq-a{max-height:320px}
.faq-a p{padding:0 28px 22px;font-size:15px;color:var(--t2)}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--ink);
  border-radius:var(--r-xl);
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:var(--grad);opacity:.55;pointer-events:none;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask-composite:exclude;
}
.cta-card::after{
  content:"";position:absolute;right:-120px;top:-120px;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,232,166,.22),transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-title{font-size:clamp(22px,2.4vw,30px);color:var(--on-dark)}
.cta-text{margin-top:12px;font-size:15px;color:var(--on-dark-2);max-width:520px}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
.cta-ghost{border-color:rgba(232,237,230,.28);color:var(--on-dark);background:transparent}
.cta-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(198,255,58,.08)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--ink);
  color:var(--on-dark-2);
  margin-top:88px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);opacity:.6;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;padding:64px 0 48px;
}
.logo--footer{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--on-dark-2);max-width:320px}
.footer-col h4{font-size:15px;color:var(--on-dark);margin-bottom:16px}
.footer-col li{font-size:14px;margin-bottom:10px}
.footer-col a{transition:color .2s}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid rgba(232,237,230,.12);
  font-size:13px;color:var(--t3);
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .f-card--a{grid-column:span 12}
  .f-card--b{grid-column:span 6}
  .f-card--c{grid-column:span 6}
  .f-card--d{grid-column:span 6}
  .f-card--e{grid-column:span 6}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav-wrap{height:56px}
  .menu-toggle{display:inline-flex}
  .main-nav{
    position:fixed;
    left:0;right:0;top:56px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:22px 20px 40px;
    background:rgba(11,14,19,.98);
    backdrop-filter:blur(14px);
    transform:translateY(-12px);
    opacity:0;visibility:hidden;
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-link{height:52px;padding:0 16px;font-size:17px;border-radius:12px}
  .nav-link::after{display:none}
  .nav-link.is-active{background:rgba(198,255,58,.1)}
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:640px}
  .section{padding:64px 0}
  .section--tight{padding:44px 0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .guard-bar{grid-template-columns:repeat(2,1fr);gap:26px 0;padding:30px 26px}
  .guard-item:nth-child(odd){border-left:0;padding-left:0}
  .cta-card{padding:38px;flex-direction:column;align-items:flex-start;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .f-card--a,.f-card--b,.f-card--c,.f-card--d,.f-card--e{grid-column:span 12}
  .news-grid{grid-template-columns:1fr}
  .hero-mini{width:158px;right:0;bottom:-18px}
  .hero-badges{gap:10px}
  .badge{padding:8px 13px;font-size:12px}
  .section-head{margin-bottom:28px}
  .section-head .link-more{align-self:flex-start}
  .faq-q{font-size:15px;padding:18px 18px 18px 22px}
  .faq-a p{padding:0 22px 20px}
  .cta-card{padding:30px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .review-card{flex:0 0 82vw}
  .guard-bar{grid-template-columns:1fr;gap:22px}
  .guard-item{border-left:0;padding-left:0}
  .hero-img{aspect-ratio:4/3}
  .btn{width:100%}
  .hero-actions .btn{flex:1 1 100%}
  .nav-actions .btn{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink:#0B0E13;
  --ink-2:#141A22;
  --ink-3:#1D2531;
  --brand:#C6FF3A;
  --brand-2:#2AE8A6;
  --accent:#FF6B2C;
  --accent-2:#FFC53D;
  --bg:#F4F7F1;
  --surface:#FFFFFF;
  --line:#E2E8DB;
  --t1:#0E1218;
  --t2:#5B6672;
  --t3:#8A94A0;
  --on-dark:#E8EDE6;
  --on-dark-2:#A7B0A4;
  --grad:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  --grad-line:linear-gradient(90deg,rgba(198,255,58,.85),rgba(42,232,166,.55),rgba(198,255,58,0));
  --glow:0 0 0 1px rgba(198,255,58,.45),0 0 24px rgba(198,255,58,.30);
  --sh1:0 1px 2px rgba(14,18,24,.04),0 8px 24px rgba(14,18,24,.06);
  --sh2:0 18px 48px rgba(14,18,24,.12);
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-p:999px;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::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:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:28px;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:#0F9E6E}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-family:var(--mono)}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,14,19,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(198,255,58,.6),rgba(42,232,166,.6),rgba(198,255,58,.15));
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:68px;
}
.logo{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto}
.logo-mark{
  width:26px;height:26px;border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 0 1px rgba(198,255,58,.35),0 0 18px rgba(198,255,58,.28);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:50%;background:var(--ink);
}
.logo-text{
  font-size:19px;font-weight:700;letter-spacing:0;
  color:#FFFFFF;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:16px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:68px;
  padding:0 14px;
  font-size:15px;color:var(--on-dark-2);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;
  background:var(--grad);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:#FFFFFF}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 14px rgba(198,255,58,.55)}
.nav-link.is-active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(198,255,58,.6)}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-p);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .25s ease,background-color .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--grad);color:#0B0E13}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--glow);color:#0B0E13;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{border:1px solid rgba(232,237,230,.35);color:var(--on-dark)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(198,255,58,.08)}
.btn-outline{border:1px solid var(--line);color:var(--t1);background:var(--surface)}
.btn-outline:hover{border-color:var(--brand-2);color:#0F9E6E;box-shadow:var(--sh1)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid rgba(232,237,230,.22);margin-left:auto;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--on-dark);position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--on-dark);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;font-size:14px;line-height:22px;color:var(--t3);
}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:#0F9E6E;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C3CCBB}
.breadcrumb .current{color:var(--t1);font-weight:500;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{
  background:var(--surface);
  padding:40px 0 32px;
}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-p);
  font-size:12px;font-weight:600;line-height:1;
  background:rgba(42,232,166,.14);color:#0F8F63;
}
.pill-accent{background:rgba(255,107,44,.14);color:#C2481A}
.pill-dark{background:rgba(198,255,58,.16);color:#5C7A0B}
.article-title{
  margin:16px 0 20px;
  font-size:38px;line-height:50px;font-weight:700;letter-spacing:0;
  max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;
  font-size:14px;line-height:22px;color:var(--t2);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C3CCBB}
.divider{height:1px;background:var(--line);margin-top:24px}

/* ---------- layout ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  padding:48px 0 72px;
  align-items:start;
}
.lead-figure{
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh1);
  margin-bottom:32px;background:#DDE5D6;
}
.lead-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.lead-caption{font-size:13px;line-height:20px;color:var(--t3);margin-top:10px}

/* ---------- article body ---------- */
.article-body{
  max-width:800px;
  font-size:17px;line-height:32px;color:#1B222B;
}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  font-size:24px;line-height:36px;font-weight:700;
  margin:44px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--grad);
}
.article-body h3{font-size:19px;line-height:28px;font-weight:600;margin:30px 0 12px}
.article-body h4{font-size:17px;line-height:26px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.2em}
.article-body ul li{list-style:disc;margin-bottom:8px}
.article-body ol li{list-style:decimal;margin-bottom:8px}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:rgba(198,255,58,.14);
  border-left:4px solid var(--brand-2);
  border-radius:0 var(--r-m) var(--r-m) 0;
  color:#28323A;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:#0F9E6E;text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#0B7A55}
.article-body img{border-radius:var(--r-m);margin:20px 0;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;line-height:20px;color:var(--t3);margin-top:8px;text-align:center}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:24px 0;font-size:15px;line-height:24px;
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
}
.article-body thead th{background:#EDF3E8;font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FAFCF7}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body pre{
  background:var(--ink-2);color:var(--on-dark);
  padding:18px 20px;border-radius:12px;overflow-x:auto;
  font-size:14px;line-height:24px;margin:24px 0;
}
.article-body code{
  font-family:var(--mono);font-size:14px;
  background:#EDF3E8;padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}

/* ---------- empty state ---------- */
.empty-state{
  max-width:800px;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--r-l);
  padding:48px 32px;text-align:center;
  box-shadow:var(--sh1);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:var(--r-m);
  background:linear-gradient(140deg,#E7EFE1,#F6F9F2);
  position:relative;
}
.empty-state .empty-icon::after{
  content:"";position:absolute;left:50%;top:50%;width:20px;height:2px;background:#B9C4B1;
  transform:translate(-50%,-50%);border-radius:2px;
}
.empty-state p{font-size:17px;color:var(--t2);margin-bottom:20px}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:22px;
  box-shadow:var(--sh1);
}
.side-card h3{
  font-size:16px;line-height:24px;font-weight:600;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:"";width:4px;height:14px;border-radius:2px;background:var(--grad);
}
.toc-list li{margin-bottom:10px;font-size:14px;line-height:22px}
.toc-list a{color:var(--t2);display:block;padding-left:12px;border-left:2px solid var(--line)}
.toc-list a:hover{color:#0F9E6E;border-left-color:var(--brand-2)}
.hot-list li{padding:12px 0;border-bottom:1px dashed var(--line)}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list a{font-size:14px;line-height:22px;font-weight:500;display:block}
.hot-list a:hover{color:#0F9E6E}
.hot-list .hot-meta{font-size:12px;line-height:18px;color:var(--t3);margin-top:6px}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px}
.cat-tags a{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:var(--r-p);border:1px solid var(--line);
  font-size:13px;color:var(--t2);background:#FAFCF7;
}
.cat-tags a:hover{border-color:var(--brand-2);color:#0F8F63;background:rgba(42,232,166,.08)}
.side-cta{
  background:var(--ink);color:var(--on-dark);
  border:1px solid rgba(198,255,58,.28);
  border-radius:var(--r-l);padding:24px;
  box-shadow:0 18px 40px rgba(11,14,19,.22);
}
.side-cta h3{color:#FFFFFF;font-size:17px;line-height:26px;font-weight:600;margin-bottom:10px}
.side-cta p{font-size:14px;line-height:24px;color:var(--on-dark-2);margin-bottom:18px}
.side-cta .btn{width:100%}

/* ---------- related ---------- */
.related{padding:0 0 72px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:24px;
}
.section-head h2{font-size:26px;line-height:36px;font-weight:700}
.section-head p{font-size:14px;line-height:22px;color:var(--t2);margin-top:6px}
.section-head .more{font-size:14px;color:#0F8F63;font-weight:600;white-space:nowrap}
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-l);overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:var(--grad);opacity:0;transition:opacity .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#D3DECB}
.card:hover::before{opacity:1}
.card:active{transform:none}
.card-cover{aspect-ratio:16/10;background:linear-gradient(140deg,#E7EFE1,#F7FAF3)}
.card-cover img{width:100%;height:100%;object-fit:cover}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:26px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;line-height:24px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t3);
}
.card-foot .go{color:#0F8F63;font-weight:600}

/* ---------- post nav ---------- */
.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  margin-bottom:28px;
}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-m);padding:18px 20px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--sh1);border-color:#D3DECB}
.post-nav .label{font-size:12px;color:var(--t3);letter-spacing:.04em}
.post-nav .title{font-size:15px;line-height:24px;font-weight:600}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:56px}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 88px}
.cta-card{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--ink);
  border:1px solid rgba(198,255,58,.28);
  border-radius:32px;
  padding:44px 48px;
  box-shadow:0 24px 60px rgba(11,14,19,.28);
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.22),rgba(198,255,58,0) 70%);
}
.cta-card h2{font-size:28px;line-height:40px;color:#FFFFFF;font-weight:700;margin-bottom:10px}
.cta-card p{font-size:15px;line-height:26px;color:var(--on-dark-2);max-width:640px}
.cta-card .btn{flex:0 0 auto;height:52px;padding:0 30px;font-size:16px;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);color:var(--on-dark-2);
  position:relative;padding:56px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(198,255,58,.6),rgba(42,232,166,.5),rgba(198,255,58,.1));
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:36px;
}
.footer-brand p{font-size:14px;line-height:24px;margin-top:14px;max-width:320px}
.logo--footer .logo-text{font-size:18px}
.footer-col h4{font-size:15px;line-height:24px;color:#FFFFFF;font-weight:600;margin-bottom:16px}
.footer-col ul li{font-size:14px;line-height:24px;margin-bottom:10px;color:var(--on-dark-2)}
.footer-col ul li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(232,237,230,.12);
  padding-top:22px;font-size:13px;line-height:22px;color:#7E8A7C;
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .layout{grid-template-columns:minmax(0,1fr) 290px;gap:36px}
  .article-title{font-size:34px;line-height:46px}
}
@media (max-width:1023px){
  .layout{grid-template-columns:minmax(0,1fr);gap:0}
  .sidebar{position:static;margin-top:44px}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 32px}
}
@media (max-width:900px){
  .header-inner{height:56px;gap:12px}
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    margin:0;padding:20px 24px 40px;
    background:var(--ink);
    flex-direction:column;align-items:stretch;gap:4px;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none}
  .nav-link{height:52px;padding:0 12px;font-size:16px;border-radius:12px}
  .nav-link::after{left:12px;right:auto;width:28px;bottom:8px}
  .nav-link.is-active{background:rgba(198,255,58,.08)}
  .article-title{font-size:28px;line-height:38px}
  .article-body{font-size:16px;line-height:30px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-head{padding:28px 0 24px}
  .article-title{font-size:26px;line-height:36px}
  .layout{padding:32px 0 56px}
  .related{padding-bottom:56px}
  .cta-band{padding-bottom:64px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .card-grid-3{
    grid-template-columns:1fr;
    display:grid;
    grid-auto-flow:column;
    grid-auto-columns:82%;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    padding-bottom:8px;
    margin:0 -16px;
    padding-left:16px;padding-right:16px;
  }
  .card-grid-3 .card{scroll-snap-align:start}
  .post-nav{grid-template-columns:1fr}
  .site-footer{padding:44px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta-card{border-radius:24px;padding:28px 22px}
  .cta-card h2{font-size:22px;line-height:32px}
  .cta-card .btn{width:100%}
  .article-body h2{font-size:21px;line-height:32px;margin:34px 0 14px}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:10px 12px}
}
@media (max-width:520px){
  .meta-row{font-size:13px;gap:8px 14px}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .side-card{padding:18px}
  .side-cta{padding:20px}
}

/* roulang page: category1 */
:root{
  --ink:#0B0E13;
  --ink-2:#141A22;
  --brand:#C6FF3A;
  --brand-2:#2AE8A6;
  --accent:#FF6B2C;
  --accent-2:#FFC53D;
  --bg:#F4F7F1;
  --surface:#FFFFFF;
  --line:#E2E8DB;
  --t1:#0E1218;
  --t2:#5B6672;
  --t3:#8A94A0;
  --on-dark:#E8EDE6;
  --on-dark-2:#A7B0A4;
  --grad:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  --sh1:0 1px 2px rgba(14,18,24,.04),0 8px 24px rgba(14,18,24,.06);
  --sh2:0 18px 48px rgba(14,18,24,.12);
  --glow:0 0 0 1px rgba(198,255,58,.45),0 0 24px rgba(198,255,58,.30);
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --pill:999px;
  --sp-1:4px;
  --sp-2:8px;
  --sp-3:12px;
  --sp-4:16px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:48px;
  --sp-8:64px;
  --sp-9:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.3;font-weight:700;letter-spacing:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,14,19,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";
  display:block;
  height:1px;
  background:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  opacity:.6;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--sp-5);
  height:68px;
}
.logo{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto}
.logo-mark{
  width:28px;height:28px;border-radius:50%;
  background:linear-gradient(135deg,#C6FF3A,#2AE8A6);
  position:relative;
  box-shadow:0 0 16px rgba(198,255,58,.35);
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:50%;background:#0B0E13;
}
.logo-text{
  color:#F2F6EE;font-weight:700;font-size:18px;letter-spacing:0;white-space:nowrap;
}
.main-nav{
  display:flex;align-items:center;gap:4px;margin-left:auto;
}
.nav-link{
  position:relative;
  padding:10px 14px;
  color:var(--on-dark-2);
  font-size:15px;
  font-weight:500;
  border-radius:var(--r-s);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:#F2F6EE}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:var(--brand);
  text-shadow:0 0 12px rgba(198,255,58,.5);
}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(198,255,58,.28);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{
  display:block;width:20px;height:2px;border-radius:2px;background:var(--on-dark);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--pill);
  font-size:15px;font-weight:600;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  color:#0B0E13;
  box-shadow:0 10px 24px rgba(42,232,166,.25);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(198,255,58,.45),0 0 24px rgba(198,255,58,.30),0 14px 28px rgba(42,232,166,.3);
}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  border:1px solid rgba(11,14,19,.18);
  color:var(--t1);
  background:transparent;
}
.btn-ghost:hover{border-color:var(--brand-2);color:#0C7F58;background:rgba(42,232,166,.08)}
.btn-ghost-dark{
  border:1px solid rgba(232,237,230,.28);
  color:var(--on-dark);
}
.btn-ghost-dark:hover{border-color:var(--brand);color:var(--brand);background:rgba(198,255,58,.08)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--t3);
  margin-bottom:var(--sp-6);
}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:#0C7F58;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C3CBBE}
.breadcrumb [aria-current]{color:var(--t1);font-weight:600}

/* ============ 分类窄首屏 ============ */
.page-hero{
  position:relative;
  padding:40px 0 72px;
  overflow:hidden;
  background:var(--bg);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.12;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(244,247,241,.35) 0%,rgba(244,247,241,.96) 70%,#F4F7F1 100%);
}
.page-hero::before{
  content:"";
  position:absolute;width:520px;height:520px;right:-140px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.38),rgba(198,255,58,0) 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:var(--sp-7);
  align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 16px;
  border-radius:var(--pill);
  background:rgba(198,255,58,.22);
  border:1px solid rgba(42,232,166,.4);
  color:#0C6B4B;
  font-size:13px;font-weight:600;
  margin-bottom:var(--sp-5);
}
.hero-tag::before{
  content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#C6FF3A,#2AE8A6);
  box-shadow:0 0 10px rgba(198,255,58,.8);
}
.hero-inner h1{
  font-size:40px;
  line-height:1.2;
  margin-bottom:var(--sp-4);
}
.hero-sub{
  font-size:18px;
  font-weight:600;
  color:#0C7F58;
  margin-bottom:var(--sp-4);
}
.hero-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
  max-width:620px;
  margin-bottom:var(--sp-6);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{
  position:relative;
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh2);
  border:1px solid var(--line);
  aspect-ratio:16/11;
  background:#DDE5D8;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";
  position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(120deg,#C6FF3A,#2AE8A6);
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--sp-4);
  margin-top:var(--sp-7);
}
.stat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:18px 20px;
  box-shadow:var(--sh1);
}
.stat-card strong{
  display:block;
  font-size:26px;
  font-weight:700;
  color:var(--t1);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-card span{font-size:13px;color:var(--t2)}
.stat-card.is-accent{border-color:rgba(255,107,44,.35)}
.stat-card.is-accent strong{color:var(--accent)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--gray{background:#EDF2E8}
.section--dark{background:var(--ink-2);color:var(--on-dark)}
.section-head{max-width:760px;margin-bottom:var(--sp-7)}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--t2)}
.section--dark .section-head p{color:var(--on-dark-2)}
.section-eyebrow{
  display:inline-block;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:#0C7F58;
  margin-bottom:10px;
}
.section--dark .section-eyebrow{color:var(--brand)}

/* ============ 深色检查条 ============ */
.checkbar{
  background:var(--ink-2);
  color:var(--on-dark);
  position:relative;
}
.checkbar::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(120deg,rgba(198,255,58,.8),rgba(42,232,166,.4));
}
.checkbar-inner{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--sp-6);
  padding:56px 0;
}
.checkbar-item{
  display:flex;gap:16px;
  padding-left:24px;
  position:relative;
}
.checkbar-item::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,#C6FF3A,#2AE8A6);
  opacity:.7;border-radius:2px;
}
.checkbar-item .cb-k{
  font-size:13px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.08em;
}
.checkbar-item h3{font-size:18px;margin:2px 0 6px;color:#F2F6EE}
.checkbar-item p{font-size:14px;color:var(--on-dark-2);line-height:1.7}

/* ============ 时间轴 ============ */
.timeline{display:grid;gap:var(--sp-5)}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:22px;
}
.tl-item::before{
  content:"";
  position:absolute;left:31px;top:72px;bottom:-24px;width:2px;
  background:linear-gradient(180deg,rgba(198,255,58,.9),rgba(42,232,166,.35));
}
.tl-item:last-child::before{display:none}
.tl-index{
  width:64px;height:64px;border-radius:50%;
  background:linear-gradient(135deg,#C6FF3A,#2AE8A6);
  color:#0B0E13;font-weight:700;font-size:18px;
  display:grid;place-items:center;
  font-variant-numeric:tabular-nums;
  box-shadow:0 12px 26px rgba(42,232,166,.28);
  position:relative;z-index:2;
}
.tl-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:26px 28px;
  box-shadow:var(--sh1);
  transition:transform .22s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:rgba(42,232,166,.45)}
.tl-body h3{font-size:20px;margin-bottom:10px}
.tl-body p{color:var(--t2);font-size:15.5px;line-height:1.8}
.tl-points{
  margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;
}
.tl-points li{
  font-size:13px;color:#0C6B4B;
  background:rgba(42,232,166,.12);
  border:1px solid rgba(42,232,166,.3);
  border-radius:var(--pill);
  padding:5px 12px;
}

/* ============ 排查区（不等宽：左图右表） ============ */
.trouble-grid{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:var(--sp-6);
  align-items:start;
}
.trouble-media{
  position:sticky;top:96px;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh1);
  aspect-ratio:4/5;
  background:#DDE5D8;
}
.trouble-media img{width:100%;height:100%;object-fit:cover}
.trouble-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;
  background:linear-gradient(180deg,rgba(11,14,19,0),rgba(11,14,19,.86));
  color:#E8EDE6;font-size:13px;
}
.trouble-list{display:grid;gap:12px}
.trouble-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  border-radius:var(--r-m);
  padding:18px 22px;
  transition:transform .2s ease,box-shadow .25s ease;
}
.trouble-row:hover{transform:translateY(-2px);box-shadow:var(--sh1)}
.trouble-row h3{font-size:16px;color:var(--t1);margin-bottom:4px}
.trouble-row .tr-cue{font-size:13px;color:var(--t3)}
.trouble-row p{font-size:15px;color:var(--t2);line-height:1.75}

/* ============ 设备与网络 ============ */
.setup-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,.9fr);
  gap:var(--sp-7);
  align-items:center;
}
.setup-list{display:grid;gap:14px;margin-top:var(--sp-5)}
.setup-list li{
  display:flex;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:16px 20px;
  box-shadow:var(--sh1);
}
.setup-list .pill{
  flex:0 0 auto;
  height:26px;padding:0 12px;
  border-radius:var(--pill);
  background:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  color:#0B0E13;font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;
}
.setup-list h3{font-size:16px;margin-bottom:2px}
.setup-list p{font-size:14.5px;color:var(--t2);line-height:1.7}
.setup-media{
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh2);
  aspect-ratio:5/4;
  background:#DDE5D8;
}
.setup-media img{width:100%;height:100%;object-fit:cover}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);
  gap:var(--sp-6);
  align-items:start;
}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  position:relative;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,#C6FF3A,#2AE8A6);
  opacity:0;transition:opacity .25s ease;
}
.faq-item.is-open{border-color:rgba(42,232,166,.45);box-shadow:var(--sh1)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px 20px 26px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--t1);
}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(42,232,166,.5);
  transition:transform .25s ease,background .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:#0C7F58;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:transform .25s ease,opacity .25s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(42,232,166,.16)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a p{
  padding:0 26px 22px;
  font-size:15px;color:var(--t2);line-height:1.85;
}
.faq-side{
  position:sticky;top:96px;
  background:var(--ink-2);
  color:var(--on-dark);
  border-radius:var(--r-l);
  padding:28px;
  box-shadow:var(--sh2);
  position:sticky;
}
.faq-side::before{
  content:"";display:block;height:3px;width:56px;border-radius:3px;
  background:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  margin-bottom:18px;
}
.faq-side h3{font-size:20px;color:#F2F6EE;margin-bottom:10px}
.faq-side p{font-size:14.5px;color:var(--on-dark-2);line-height:1.8;margin-bottom:20px}
.faq-side .side-meta{
  font-size:13px;color:var(--on-dark-2);
  border-top:1px solid rgba(232,237,230,.14);
  padding-top:16px;margin-top:20px;
  display:grid;gap:6px;
}

/* ============ 推荐卡片 ============ */
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--sp-5);
}
.rec-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh1);
  position:relative;
  transition:transform .22s ease,box-shadow .25s ease;
}
.rec-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  opacity:0;transition:opacity .25s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.rec-card:hover::before{opacity:1}
.rec-media{aspect-ratio:16/10;background:#DDE5D8;overflow:hidden}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rec-card:hover .rec-media img{transform:scale(1.04)}
.rec-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-chip{
  align-self:flex-start;
  font-size:12px;font-weight:600;color:#0C6B4B;
  background:rgba(42,232,166,.14);
  border:1px solid rgba(42,232,166,.32);
  border-radius:var(--pill);
  padding:4px 12px;
}
.rec-body h3{font-size:18px;line-height:1.4}
.rec-body p{font-size:14.5px;color:var(--t2);line-height:1.75;flex:1}
.rec-link{
  font-size:14px;font-weight:600;color:#0C7F58;
  display:inline-flex;align-items:center;gap:6px;
}
.rec-link::after{content:"→";transition:transform .2s ease}
.rec-card:hover .rec-link::after{transform:translateX(4px)}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--ink-2);
  border-radius:28px;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;
  overflow:hidden;
  box-shadow:var(--sh2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;border-radius:28px;padding:1px;
  background:linear-gradient(120deg,rgba(198,255,58,.7),rgba(42,232,166,.15),rgba(255,107,44,.5));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.cta-band h2{font-size:26px;color:#F2F6EE;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--on-dark-2);max-width:620px}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:var(--on-dark);
  position:relative;
  margin-top:88px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(120deg,rgba(198,255,58,.9),rgba(42,232,166,.3),rgba(198,255,58,.6));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:var(--sp-6);
  padding:64px 0 40px;
}
.footer-brand p{
  font-size:14.5px;color:var(--on-dark-2);line-height:1.8;
  margin-top:16px;max-width:320px;
}
.logo--footer .logo-text{color:#F2F6EE}
.footer-col h4{
  font-size:15px;color:#F2F6EE;margin-bottom:16px;font-weight:600;
}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--on-dark-2)}
.footer-col a{color:var(--on-dark-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(232,237,230,.12);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#7F8A7C;
  flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .header-inner{height:56px}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;
    left:0;right:0;top:57px;bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:24px;
    margin-left:0;
    background:rgba(11,14,19,.98);
    transform:translateX(100%);
    transition:transform .3s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{padding:14px 16px;font-size:17px}
  .nav-link::after{left:16px;right:16px;bottom:8px}
  .header-actions .btn{display:none}
  .hero-inner{grid-template-columns:1fr;gap:var(--sp-6)}
  .hero-media{aspect-ratio:16/10}
  .hero-inner h1{font-size:32px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:64px 0}
  .checkbar-inner{grid-template-columns:1fr;gap:24px;padding:44px 0}
  .trouble-grid{grid-template-columns:1fr}
  .trouble-media{position:static;aspect-ratio:16/10}
  .setup-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .faq-side{position:static}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:32px;padding:48px 0 32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .hero-inner h1{font-size:28px}
  .hero-sub{font-size:16px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .section-head{margin-bottom:32px}
  .tl-item{grid-template-columns:52px 1fr;gap:16px}
  .tl-index{width:52px;height:52px;font-size:16px}
  .tl-item::before{left:25px;top:60px}
  .tl-body{padding:20px 20px}
  .trouble-row{grid-template-columns:1fr;gap:8px}
  .rec-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:28px 22px;border-radius:24px}
  .cta-band h2{font-size:22px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:479px){
  .hero-inner h1{font-size:26px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .stat-card{padding:14px 16px}
  .stat-card strong{font-size:22px}
  .btn{height:44px;padding:0 18px}
  .rec-card:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0B0E13;
  --ink-2:#141A22;
  --brand:#C6FF3A;
  --brand-2:#2AE8A6;
  --grad:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  --accent:#FF6B2C;
  --accent-2:#FFC53D;
  --bg:#F4F7F1;
  --surface:#FFFFFF;
  --line:#E2E8DB;
  --t1:#0E1218;
  --t2:#5B6672;
  --t3:#8A94A0;
  --on-dark:#E8EDE6;
  --on-dark-2:#A7B0A4;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-xl:32px;
  --pill:999px;
  --sh1:0 1px 2px rgba(14,18,24,.04),0 8px 24px rgba(14,18,24,.06);
  --sh2:0 18px 48px rgba(14,18,24,.12);
  --glow:0 0 0 1px rgba(198,255,58,.45),0 0 24px rgba(198,255,58,.30);
  --maxw:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--t1);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,14,19,.93);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,58,.6),rgba(42,232,166,.6),transparent);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;font-weight:700;font-size:18px;letter-spacing:.4px}
.logo-mark{position:relative;width:28px;height:28px;border-radius:50%;background:var(--grad);box-shadow:0 0 16px rgba(198,255,58,.42);flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:50%;background:var(--ink)}
.logo-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;
  color:var(--on-dark-2);border-radius:var(--r-s);white-space:nowrap;transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(198,255,58,.5)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(232,237,230,.18);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:rgba(198,255,58,.5)}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--on-dark);transition:transform .25s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,background .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad);color:#08120A;box-shadow:0 6px 18px rgba(42,232,166,.24)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--glow);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--t1);box-shadow:var(--sh1)}
.btn-ghost:hover{border-color:rgba(42,232,166,.6);color:#12795B;transform:translateY(-1px)}
.btn-dark{background:rgba(255,255,255,.06);border-color:rgba(232,237,230,.22);color:var(--on-dark)}
.btn-dark:hover{border-color:rgba(198,255,58,.6);color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#FFFFFF 0%,#F4F7F1 100%);
}
.page-hero::before{
  content:"";position:absolute;top:-180px;right:-140px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.34),rgba(42,232,166,.12) 45%,transparent 70%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(14,18,24,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(14,18,24,.6) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:52px 0 64px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:22px;position:relative;z-index:2}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:#12795B;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C3CCBC}
.breadcrumb .cur{color:var(--t1);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--pill);font-size:13px;font-weight:600;color:#0E1218;
  background:rgba(198,255,58,.2);border:1px solid rgba(198,255,58,.55);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
h1{font-size:40px;line-height:1.25;font-weight:700;margin:18px 0 16px;letter-spacing:0}
.hero-sub{font-size:18px;line-height:1.7;color:var(--t1);font-weight:500;margin-bottom:14px}
.hero-text{font-size:16px;color:var(--t2);max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stat{
  display:inline-flex;align-items:baseline;gap:8px;padding:9px 16px;border-radius:var(--pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh1);
  font-size:13px;color:var(--t2);font-weight:500;
}
.stat b{font-size:18px;font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:var(--sh2);border:1px solid rgba(255,255,255,.6);
}
.hero-chip{
  position:absolute;left:-14px;bottom:26px;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 18px;border-radius:var(--r-m);
  background:#0B0E13;color:var(--on-dark-2);font-size:13px;
  box-shadow:0 14px 32px rgba(11,14,19,.35);
}
.hero-chip b{color:var(--brand);font-size:16px;font-variant-numeric:tabular-nums}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--t2)}
.section-tag{
  display:inline-block;font-size:13px;font-weight:600;color:#12795B;
  padding:4px 12px;border-radius:var(--pill);background:rgba(42,232,166,.12);
  border:1px solid rgba(42,232,166,.3);margin-bottom:14px;
}

/* ---------- prepare split ---------- */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:52px;align-items:center}
.split-media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--r-l);box-shadow:var(--sh2)}
.check-list{margin-top:26px;display:grid;gap:18px}
.check-list li{display:grid;grid-template-columns:28px 1fr;gap:14px;align-items:start}
.check-list .dot{
  width:28px;height:28px;border-radius:50%;background:var(--grad);
  display:grid;place-items:center;color:#08120A;font-size:14px;font-weight:700;flex:0 0 auto;
}
.check-list h3{font-size:17px;font-weight:600;margin-bottom:4px}
.check-list p{font-size:15px;color:var(--t2)}

/* ---------- timeline ---------- */
.timeline{position:relative;max-width:900px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:27px;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(198,255,58,.95),rgba(42,232,166,.85) 65%,rgba(42,232,166,.12));
}
.tl-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:26px;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-marker{
  position:relative;z-index:2;width:56px;height:56px;border-radius:50%;
  background:var(--grad);display:grid;place-items:center;
  font-weight:700;font-size:17px;color:#08120A;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px var(--bg),0 0 24px rgba(198,255,58,.32);
}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px 28px;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  position:relative;overflow:hidden;
}
.tl-body::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
  transform:scaleY(.35);transform-origin:top;transition:transform .3s ease;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#D6E2C8}
.tl-body:hover::before{transform:scaleY(1)}
.tl-body h3{font-size:20px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.tl-body h3 .tag{
  font-size:12px;font-weight:600;color:var(--t2);background:#F1F5EC;
  border:1px solid var(--line);border-radius:var(--pill);padding:2px 10px;
}
.tl-body p{font-size:15.5px;color:var(--t2);margin-bottom:12px}
.tl-points{display:grid;gap:8px}
.tl-points li{position:relative;padding-left:18px;font-size:15px;color:var(--t2)}
.tl-points li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--grad);
}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:center}
.compare-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-l);box-shadow:var(--sh2)}
.table-wrap{border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh1);background:#fff;overflow-x:auto}
.data-table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px}
.data-table th{
  background:var(--ink);color:var(--on-dark);text-align:left;
  font-weight:600;font-size:14px;padding:15px 20px;letter-spacing:.2px;
}
.data-table td{padding:15px 20px;border-top:1px solid var(--line);color:var(--t2);vertical-align:top}
.data-table tbody tr:nth-child(even){background:#FAFCF7}
.data-table td:first-child{color:var(--t1);font-weight:600;white-space:nowrap}
.table-note{margin-top:14px;font-size:13.5px;color:var(--t3)}

/* ---------- hints ---------- */
.hint-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.hint-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:24px 26px 24px 30px;box-shadow:var(--sh1);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.hint-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad)}
.hint-card:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.hint-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.hint-card p{font-size:15px;color:var(--t2)}

/* ---------- recommend ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#D6E2C8}
.rec-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(120deg,#E9F3DA,#DCF6EA)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-thumb .cap{
  position:absolute;left:14px;top:14px;padding:4px 12px;border-radius:var(--pill);
  font-size:12px;font-weight:600;color:#08120A;background:rgba(198,255,58,.9);
}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:18px;font-weight:700;line-height:1.45}
.rec-body p{font-size:14.5px;color:var(--t2);flex:1}
.rec-link{font-size:14px;font-weight:600;color:#12795B;display:inline-flex;align-items:center;gap:6px}
.rec-link::after{content:"→";transition:transform .25s ease}
.rec-card:hover .rec-link::after{transform:translateX(4px)}

/* ---------- cta ---------- */
.cta-wrap{padding:0 0 88px}
.cta-band{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;
  border-radius:var(--r-xl);background:var(--ink);color:var(--on-dark);
  padding:46px 52px;overflow:hidden;box-shadow:0 24px 60px rgba(11,14,19,.28);
}
.cta-band::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);padding:1px;
  background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.65;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.22),transparent 65%);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy h2{font-size:26px;line-height:1.4;font-weight:700;margin-bottom:10px;color:#fff}
.cta-copy p{font-size:15.5px;color:var(--on-dark-2)}
.cta-band .btn{position:relative;z-index:2;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--ink);color:var(--on-dark-2);padding:64px 0 28px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,58,.7),rgba(42,232,166,.7),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(232,237,230,.1);
}
.logo--footer{color:#fff;margin-bottom:0}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;max-width:330px;color:var(--on-dark-2)}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:24px;font-size:13px;color:#8A94A0;
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  h1{font-size:36px}
  .hero-inner{gap:40px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;margin-left:0;
    padding:22px 20px 40px;background:rgba(11,14,19,.985);
    transform:translateY(-110%);opacity:0;pointer-events:none;
    transition:transform .3s ease,opacity .25s ease;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:14px 16px;font-size:17px;border-radius:12px}
  .nav-link::after{left:16px;right:auto;width:44px;bottom:8px}
  .header-inner{height:56px;gap:12px}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:36px 0 52px}
  .hero-visual img{aspect-ratio:16/10}
  .hero-chip{left:14px;bottom:14px}
  .split{grid-template-columns:1fr;gap:32px}
  .compare{grid-template-columns:1fr;gap:32px}
  .compare-media img{aspect-ratio:16/10}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;gap:24px}
}
@media (max-width:767px){
  h1{font-size:28px;line-height:1.32}
  .hero-sub{font-size:16px}
  .section-head h2{font-size:24px}
  .timeline::before{left:21px}
  .tl-item{grid-template-columns:44px 1fr;gap:16px}
  .tl-marker{width:44px;height:44px;font-size:15px;box-shadow:0 0 0 5px var(--bg),0 0 20px rgba(198,255,58,.28)}
  .tl-body{padding:20px 20px}
  .tl-body h3{font-size:18px}
  .hint-grid{grid-template-columns:1fr}
  .rec-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 24px;border-radius:24px}
  .cta-copy h2{font-size:21px}
  .cta-band .btn{width:100%}
  .section{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .container{padding:0 16px}
}
@media (max-width:520px){
  .header-actions .btn{display:none}
  .stat-row{gap:8px}
  .stat{padding:8px 12px}
  h1{font-size:26px}
  .hero-cta .btn{width:100%}
  .table-note{font-size:13px}
}

/* roulang page: category3 */
:root{
  --ink:#0B0E13;
  --ink-2:#141A22;
  --brand:#C6FF3A;
  --brand-2:#2AE8A6;
  --accent:#FF6B2C;
  --accent-2:#FFC53D;
  --bg:#F4F7F1;
  --surface:#FFFFFF;
  --line:#E2E8DB;
  --t1:#0E1218;
  --t2:#5B6672;
  --t3:#8A94A0;
  --on-dark:#E8EDE6;
  --on-dark-2:#A7B0A4;
  --grad:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  --glow:0 0 0 1px rgba(198,255,58,.45),0 0 24px rgba(198,255,58,.30);
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --sh1:0 1px 2px rgba(14,18,24,.04),0 8px 24px rgba(14,18,24,.06);
  --sh2:0 18px 48px rgba(14,18,24,.12);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--t1);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;line-height:1.35;color:var(--t1);}
p{margin:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.mono{font-variant-numeric:tabular-nums;font-family:var(--mono);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,14,19,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,58,.6),rgba(42,232,166,.6),transparent);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;}
.logo-mark{
  width:26px;height:26px;border-radius:50%;
  background:linear-gradient(135deg,#C6FF3A,#2AE8A6);
  box-shadow:0 0 14px rgba(198,255,58,.45);
}
.logo-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:38px;padding:0 14px;border-radius:999px;
  font-size:15px;color:var(--on-dark-2);
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad);width:0;opacity:0;transition:width .25s ease,opacity .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link:hover::after{width:calc(100% - 28px);opacity:.55;}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(198,255,58,.5);}
.nav-link.is-active::after{width:calc(100% - 28px);opacity:1;box-shadow:0 0 12px rgba(198,255,58,.5);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;line-height:1;
  padding:14px 26px;font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--grad);color:#0B0E13;box-shadow:0 6px 18px rgba(42,232,166,.22);}
.btn--primary:hover{filter:brightness(1.06);color:#0B0E13;box-shadow:var(--glow),0 10px 26px rgba(42,232,166,.28);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:transparent;color:var(--t1);border:1px solid var(--line);}
.btn--ghost:hover{border-color:var(--brand-2);color:#0E1218;background:rgba(42,232,166,.08);}
.btn--ghost-dark{background:transparent;color:var(--on-dark);border:1px solid rgba(232,237,230,.28);}
.btn--ghost-dark:hover{border-color:var(--brand);color:var(--brand);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  color:#fff;background:rgba(255,255,255,.06);
}
.nav-toggle:hover{background:rgba(198,255,58,.14);color:var(--brand);}

.nav-drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:70;
  background:rgba(11,14,19,.98);
  padding:20px 16px 32px;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
  overflow-y:auto;
}
.nav-drawer.is-open{opacity:1;transform:none;pointer-events:auto;}
.nav-drawer a{
  display:flex;align-items:center;
  min-height:48px;padding:0 16px;margin-bottom:6px;
  border-radius:14px;color:var(--on-dark-2);font-size:16px;
  border:1px solid transparent;
}
.nav-drawer a:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-drawer a.is-active{
  color:var(--brand);background:rgba(198,255,58,.08);
  border-color:rgba(198,255,58,.35);
  box-shadow:0 0 18px rgba(198,255,58,.18);
}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 72px;
  background:
    radial-gradient(720px 380px at 84% -10%, rgba(198,255,58,.22), transparent 62%),
    radial-gradient(520px 320px at 6% 100%, rgba(42,232,166,.16), transparent 60%),
    var(--bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,18,24,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(14,18,24,.05) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.5;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-bottom:22px;}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb .current{color:var(--t1);font-weight:600;}
.page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
  font-size:13px;font-weight:600;color:#0E1218;
  background:rgba(198,255,58,.28);
  border:1px solid rgba(42,232,166,.45);
}
.eyebrow i{color:#0E1218;font-size:12px;}
.page-hero h1{font-size:40px;line-height:1.28;margin-bottom:18px;}
.page-hero h1 .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:17px;line-height:1.85;color:var(--t2);max-width:620px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:36px;max-width:640px;}
.stat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:14px 16px;box-shadow:var(--sh1);
}
.stat b{display:block;font-size:22px;font-weight:700;line-height:1.2;font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--t1);}
.stat span{display:block;font-size:13px;color:var(--t3);margin-top:4px;}
.page-hero-art{position:relative;}
.page-hero-art img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-l);box-shadow:var(--sh2);
}
.hero-chip{
  position:absolute;right:-8px;bottom:-18px;
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-m);padding:14px 18px;box-shadow:var(--sh2);
}
.hero-chip i{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(198,255,58,.22);color:#0E1218;font-size:16px;
}
.hero-chip b{display:block;font-size:15px;}
.hero-chip span{font-size:12px;color:var(--t3);}

/* ---------- Main layout with sticky toc ---------- */
.main-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;align-items:start;}
.toc{
  position:sticky;top:92px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:22px;box-shadow:var(--sh1);
}
.toc h2{font-size:15px;letter-spacing:.4px;color:var(--t2);font-weight:600;margin-bottom:14px;}
.toc ul li+li{margin-top:4px;}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;font-size:15px;color:var(--t2);
  border-left:2px solid transparent;
}
.toc a i{font-size:12px;color:var(--t3);}
.toc a:hover{background:#F1F5EC;color:var(--t1);border-left-color:var(--brand-2);}
.toc a:hover i{color:var(--brand-2);}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--t3);line-height:1.7;
}

.content-col{display:flex;flex-direction:column;gap:56px;}
.block-head{margin-bottom:22px;}
.block-head .kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-2);
  letter-spacing:.6px;margin-bottom:8px;
}
.block-head h2{font-size:30px;line-height:1.35;position:relative;padding-left:16px;}
.block-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.block-head p{margin-top:10px;color:var(--t2);font-size:15px;max-width:760px;}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card{
  position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;border-radius:var(--r-l) var(--r-l) 0 0;
  background:var(--grad);opacity:0;transition:opacity .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#D3DCC8;}
.card:hover::before{opacity:1;}
.card:active{transform:none;}
.card-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(42,232,166,.14);color:#0E1218;font-size:17px;margin-bottom:16px;
}
.card h3{font-size:22px;line-height:1.4;margin-bottom:10px;}
.card p{font-size:15px;color:var(--t2);line-height:1.8;}
.card .tagline{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:#F1F5EC;color:var(--t2);border:1px solid var(--line);
}
.tag--brand{background:rgba(198,255,58,.24);border-color:rgba(42,232,166,.4);color:#0E1218;}
.tag--accent{background:rgba(255,107,44,.12);border-color:rgba(255,107,44,.32);color:#C24A13;}

.card--media{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.card--media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.card--media .card-body{padding:22px 24px 24px;}
.card--media h3{font-size:20px;}
.card--media p{font-size:14.5px;}

.card--plain{background:linear-gradient(180deg,#FFFFFF,#FAFCF7);}

/* rail */
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:8px;}
.rail::-webkit-scrollbar-thumb{background:#D5DECA;border-radius:999px;}
.rail::-webkit-scrollbar-track{background:transparent;}
.rail-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--ink-2);color:var(--on-dark);
  border-radius:var(--r-l);padding:26px;
  border:1px solid rgba(232,237,230,.1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:0 18px 42px rgba(11,14,19,.32);}
.rail-card i{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(198,255,58,.16);color:var(--brand);font-size:16px;margin-bottom:16px;
}
.rail-card h3{font-size:19px;color:#fff;margin-bottom:10px;}
.rail-card p{font-size:14.5px;color:var(--on-dark-2);line-height:1.8;}
.rail-card .tag{margin-top:16px;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);color:var(--on-dark-2);}
.rail-card:nth-child(odd){flex-basis:360px;}

/* ---------- Guard bar ---------- */
.guard-bar{background:var(--ink-2);color:var(--on-dark);padding:38px 0;}
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
.guard-item{padding:6px 26px;position:relative;}
.guard-item+.guard-item::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,transparent,rgba(198,255,58,.55),transparent);
}
.guard-item i{font-size:20px;color:var(--brand);margin-bottom:12px;display:block;}
.guard-item b{display:block;font-size:16px;color:#fff;margin-bottom:6px;}
.guard-item span{font-size:14px;color:var(--on-dark-2);line-height:1.7;}

/* ---------- Checklist panel ---------- */
.check-panel{
  display:grid;grid-template-columns:1.08fr .92fr;gap:32px;align-items:stretch;
}
.check-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:12px;box-shadow:var(--sh1);
}
.check-item{display:flex;gap:14px;padding:18px 16px;border-radius:var(--r-m);transition:background .2s ease;}
.check-item:hover{background:#F4F8EF;}
.check-item+.check-item{border-top:1px solid var(--line);}
.check-item .num{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-family:var(--mono);font-size:13px;font-weight:700;color:#0E1218;
  background:rgba(198,255,58,.35);
}
.check-item h3{font-size:17px;margin-bottom:6px;}
.check-item p{font-size:14.5px;color:var(--t2);line-height:1.78;}
.check-aside{
  display:flex;flex-direction:column;gap:20px;
  background:linear-gradient(170deg,#0F1620,#141A22);
  border-radius:var(--r-l);padding:30px;color:var(--on-dark);
  border:1px solid rgba(232,237,230,.1);
}
.check-aside h3{font-size:22px;color:#fff;margin-bottom:12px;}
.check-aside p{font-size:15px;color:var(--on-dark-2);line-height:1.85;}
.check-aside img{border-radius:var(--r-m);aspect-ratio:16/10;object-fit:cover;width:100%;}
.check-aside .mini{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--on-dark-2);}
.check-aside .mini i{color:var(--brand);}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#101720,#141A22 55%,#0F1A16);
  border-radius:28px;padding:44px 48px;
  display:flex;align-items:center;gap:32px;justify-content:space-between;
  border:1px solid rgba(198,255,58,.22);
  box-shadow:0 24px 60px rgba(11,14,19,.22);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.22),transparent 68%);
}
.cta-band h2{font-size:30px;color:#fff;margin-bottom:10px;}
.cta-band p{font-size:15.5px;color:var(--on-dark-2);max-width:620px;line-height:1.85;}
.cta-band .btn{position:relative;z-index:1;flex:0 0 auto;}

/* ---------- Recommend ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.rec-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body h3{font-size:19px;line-height:1.45;}
.rec-body p{font-size:14.5px;color:var(--t2);line-height:1.78;}
.rec-body .meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3);}
.rec-body .meta i{color:var(--brand-2);}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  background:var(--ink);color:var(--on-dark);
  padding:64px 0 28px;margin-top:88px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,58,.7),rgba(42,232,166,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand p{margin-top:16px;font-size:14.5px;color:var(--on-dark-2);line-height:1.85;max-width:320px;}
.logo--footer{margin-bottom:4px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;font-size:14.5px;color:var(--on-dark-2);}
.footer-col ul li a{color:var(--on-dark-2);}
.footer-col ul li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(232,237,230,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13.5px;color:var(--on-dark-2);
}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .page-hero h1{font-size:36px;}
  .cta-band{padding:38px 32px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn{display:none;}
  .section{padding:64px 0;}
  .page-hero{padding:48px 0 56px;}
  .page-hero-grid{grid-template-columns:1fr;gap:32px;}
  .page-hero-art img{aspect-ratio:16/9;}
  .hero-chip{right:12px;bottom:-14px;}
  .main-layout{grid-template-columns:1fr;gap:36px;}
  .toc{position:static;}
  .toc ul{display:flex;flex-wrap:wrap;gap:8px;}
  .toc ul li+li{margin-top:0;}
  .toc a{border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:14px;}
  .toc a:hover{border-left-color:var(--line);}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 0;}
  .guard-item:nth-child(3)::before{display:none;}
  .check-panel{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:30px;}
  .block-head h2{font-size:25px;}
  .cta-band h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rec-grid{grid-template-columns:1fr;}
  .rail-card,.rail-card:nth-child(odd){flex-basis:min(78vw,340px);}
  .check-aside{padding:24px;}
  .cta-band{padding:30px 24px;border-radius:24px;}
}
@media (max-width:520px){
  .header-inner{height:56px;}
  .nav-drawer{top:56px;}
  .logo-text{font-size:16px;}
  .section{padding:48px 0;}
  .page-hero{padding:36px 0 48px;}
  .page-hero h1{font-size:26px;line-height:1.32;}
  .lead{font-size:16px;}
  .btn{width:100%;}
  .hero-cta .btn{flex:1 1 100%;}
  .stat b{font-size:19px;}
  .card{padding:20px;}
  .guard-item{padding:6px 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .rail-card,.rail-card:nth-child(odd){flex-basis:82vw;}
}

/* roulang page: category4 */
:root{
  --ink:#0B0E13;
  --ink-2:#141A22;
  --ink-3:#1D2530;
  --brand:#C6FF3A;
  --brand-2:#2AE8A6;
  --grad:linear-gradient(120deg,#C6FF3A,#2AE8A6);
  --accent:#FF6B2C;
  --accent-2:#FFC53D;
  --bg:#F4F7F1;
  --surface:#FFFFFF;
  --line:#E2E8DB;
  --t1:#0E1218;
  --t2:#5B6672;
  --t3:#8A94A0;
  --d-t1:#E8EDE6;
  --d-t2:#A7B0A4;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-x:32px;
  --r-p:999px;
  --sh1:0 1px 2px rgba(14,18,24,.04),0 8px 24px rgba(14,18,24,.06);
  --sh2:0 18px 48px rgba(14,18,24,.12);
  --glow:0 0 0 1px rgba(198,255,58,.45),0 0 24px rgba(198,255,58,.30);
  --sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:#0E7A56;}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-p);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:filter .22s ease,box-shadow .22s ease,transform .12s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad);color:#0B0E13;box-shadow:0 8px 22px rgba(42,232,166,.22);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--glow);color:#0B0E13;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--d-t1);border-color:rgba(198,255,58,.45);}
.btn-ghost:hover{background:rgba(198,255,58,.12);color:#fff;border-color:rgba(198,255,58,.75);}
.btn-ghost:active{transform:translateY(1px);}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 顶栏导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,14,19,.93);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--grad);opacity:.6;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;}
.logo-mark{
  width:26px;height:26px;border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 14px rgba(198,255,58,.45);
  flex:0 0 auto;
}
.logo-text{font-size:19px;font-weight:700;color:#fff;letter-spacing:0;}
.logo:hover .logo-text{color:#fff;}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:#C8D0C6;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--grad);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 14px rgba(198,255,58,.5);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;
  border-radius:12px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);cursor:pointer;
  place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;background:var(--d-t1);transition:transform .25s ease,opacity .25s ease;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--d-t2);margin-bottom:22px;}
.breadcrumb a{color:var(--d-t2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.55;}

/* ---------- 分类窄 Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink);color:var(--d-t1);padding:52px 0 68px;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(880px 420px at 84% -12%,rgba(198,255,58,.22),transparent 62%),
    radial-gradient(620px 320px at 6% 108%,rgba(42,232,166,.18),transparent 60%),
    linear-gradient(180deg,rgba(11,14,19,.62),rgba(11,14,19,.95));
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.22fr) minmax(0,.78fr);gap:44px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;margin-bottom:18px;border-radius:var(--r-p);
  font-size:13px;font-weight:600;color:var(--brand);
  border:1px solid rgba(198,255,58,.35);background:rgba(198,255,58,.07);
}
.hero-copy h1{font-size:40px;line-height:1.22;color:#fff;}
.hero-copy h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.8;color:#C8D0C6;max-width:56ch;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:var(--r-p);
  font-size:13px;color:var(--d-t1);
  border:1px solid rgba(198,255,58,.32);
  background:rgba(198,255,58,.06);
}
.badge b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:15px;color:var(--brand);font-weight:700;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-figure{
  margin:0;border-radius:var(--r-l);overflow:hidden;
  border:1px solid rgba(198,255,58,.28);
  box-shadow:0 26px 64px rgba(0,0,0,.48);
  aspect-ratio:16/10;background:var(--ink-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}

/* ---------- 简介 ---------- */
.intro{padding:56px 0 0;}
.intro-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:30px 34px 30px 38px;
  box-shadow:var(--sh1);
}
.intro-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:4px;border-radius:4px;
  background:var(--grad);
}
.intro-card h2{font-size:22px;margin-bottom:14px;}
.intro-card p{color:var(--t2);font-size:16px;line-height:1.85;}
.intro-card p + p{margin-top:12px;}

/* ---------- 跳转标签 ---------- */
.jump-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 0;}
.jump-tabs a{
  display:inline-flex;align-items:center;
  padding:9px 18px;border-radius:var(--r-p);
  font-size:14px;font-weight:600;color:var(--t2);
  background:var(--surface);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.jump-tabs a:hover{color:#0E1218;border-color:rgba(42,232,166,.55);box-shadow:0 6px 18px rgba(42,232,166,.14);transform:translateY(-2px);}

/* ---------- FAQ 布局 ---------- */
.faq-section{padding:56px 0 88px;}
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start;}
.faq-group + .faq-group{margin-top:44px;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.group-head .bar{width:4px;height:22px;border-radius:4px;background:var(--grad);flex:0 0 auto;}
.group-head h2{font-size:23px;}
.group-head span{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--t3);margin-left:auto;}

.faq-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  box-shadow:0 1px 2px rgba(14,18,24,.03);
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item + .faq-item{margin-top:12px;}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
}
.faq-item:hover{border-color:rgba(42,232,166,.45);box-shadow:var(--sh1);}
.faq-item.is-open{border-color:rgba(42,232,166,.55);box-shadow:var(--sh1);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:19px 22px 19px 26px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
}
.faq-q:hover{color:#0E1218;}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;margin-top:5px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;border-radius:2px;
  background:var(--brand-2);
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{
  padding:0 26px 20px;
  font-size:15px;line-height:1.85;color:var(--t2);
}
.faq-a p b{color:var(--t1);font-weight:600;}

/* ---------- 侧栏 ---------- */
.faq-side{display:grid;gap:20px;position:sticky;top:88px;}
.support-card{
  background:var(--ink-2);
  border:1px solid rgba(198,255,58,.22);
  border-radius:var(--r-l);
  padding:28px 26px;
  color:var(--d-t1);
  box-shadow:0 20px 44px rgba(11,14,19,.24);
}
.card-kicker{
  display:inline-block;padding:5px 12px;margin-bottom:14px;border-radius:var(--r-p);
  font-size:12px;font-weight:600;color:var(--brand);
  border:1px solid rgba(198,255,58,.35);background:rgba(198,255,58,.08);
}
.support-card h3{font-size:20px;color:#fff;}
.support-card p{margin-top:12px;font-size:14px;line-height:1.8;color:var(--d-t2);}
.support-card .btn{margin-top:20px;}
.support-meta{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);display:grid;gap:12px;}
.support-meta li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--d-t2);}
.support-meta li b{font-weight:600;color:var(--d-t1);font-family:var(--mono);}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:24px 24px 26px;
  box-shadow:var(--sh1);
}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-card li{
  position:relative;padding-left:18px;margin-bottom:10px;
  font-size:14px;line-height:1.7;color:var(--t2);
}
.side-card li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--grad);
}

/* ---------- 相关分类 ---------- */
.related{padding:0 0 88px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:30px;}
.section-head p{font-size:15px;color:var(--t2);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:var(--grad);opacity:0;transition:opacity .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(42,232,166,.4);}
.card:hover::before{opacity:1;}
.card:active{transform:none;}
.card-img{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(120deg,#E5EFDD,#D3E6D9);}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-img img{transform:scale(1.04);}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.tag{
  display:inline-block;align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-p);
  font-size:12px;font-weight:600;color:#0E7A56;
  background:rgba(42,232,166,.14);
}
.card-body h3{font-size:19px;line-height:1.45;margin:13px 0 9px;}
.card-body p{font-size:14px;line-height:1.7;color:var(--t2);}
.card-link{margin-top:auto;padding-top:16px;font-size:14px;font-weight:600;color:#0E7A56;}
.card:hover .card-link{color:#0B6B4B;}

/* ---------- 转化 CTA ---------- */
.cta-band{padding:0 0 96px;}
.cta-inner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:46px 48px;border-radius:var(--r-x);
  background:var(--ink);
  border:1px solid rgba(198,255,58,.24);
  box-shadow:0 26px 60px rgba(11,14,19,.22);
}
.cta-inner::after{
  content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,58,.20),transparent 66%);
  pointer-events:none;
}
.cta-inner h2{font-size:29px;color:#fff;position:relative;z-index:2;}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--d-t2);max-width:56ch;position:relative;z-index:2;}
.cta-inner .btn{position:relative;z-index:2;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--ink);color:var(--d-t2);
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:var(--grad);opacity:.7;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--d-t2);max-width:32ch;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;font-size:14px;}
.footer-col a{color:var(--d-t2);}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-col li{color:var(--d-t2);}
.footer-bottom{
  margin-top:52px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--t3);
}
.footer-bottom span:last-child{font-family:var(--mono);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .header-inner{height:56px;}
  .nav-toggle{display:grid;}
  .header-actions .btn{display:none;}
  .main-nav{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:20px 20px 44px;
    background:rgba(11,14,19,.98);
    backdrop-filter:blur(10px);
    overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s;
    z-index:70;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none;}
  .nav-link{padding:15px 16px;font-size:16px;min-height:44px;border-radius:12px;}
  .nav-link.is-active{background:rgba(198,255,58,.08);}
  .nav-link::after{left:16px;right:16px;bottom:8px;}
  .page-hero{padding:40px 0 52px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:32px;}
  .hero-figure{order:2;}
  .faq-layout{grid-template-columns:1fr;}
  .faq-side{position:static;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:38px 34px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .page-hero{padding:32px 0 44px;}
  .hero-copy h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .intro{padding:40px 0 0;}
  .intro-card{padding:24px 22px 24px 30px;}
  .faq-section{padding:40px 0 64px;}
  .related{padding:0 0 64px;}
  .cta-band{padding:0 0 68px;}
  .section-head h2{font-size:24px;}
  .cta-inner h2{font-size:23px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .site-footer{padding:48px 0 24px;}
  .group-head h2{font-size:20px;}
  .faq-q{padding:16px 18px 16px 22px;font-size:15px;}
  .faq-a p{padding:0 22px 18px;}
}
@media (max-width:520px){
  .hero-badges{gap:10px;}
  .badge{padding:7px 12px;font-size:12px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}