/* roulang page: index */
:root{
  --c-ink:#0D0F12;
  --c-ink-2:#1A1E23;
  --c-ink-3:#3A4149;
  --c-paper:#F5F4F0;
  --c-card:#FFFFFF;
  --c-line:#E4E2DB;
  --c-lime:#C9F73A;
  --c-lime-deep:#A9D62A;
  --c-flame:#FF5A2B;
  --c-ok:#2FA36B;
  --c-warn:#E0A800;
  --c-err:#D84343;
  --t-mute:#6E7076;
  --t-dark-mute:#9AA0A6;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,15,18,.04), 0 8px 24px -12px rgba(13,15,18,.14);
  --sh-2:0 2px 6px rgba(13,15,18,.06), 0 20px 44px -18px rgba(13,15,18,.24);
  --t:200ms cubic-bezier(.2,.7,.3,1);
  --sidebar-w:236px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"Space Grotesk",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--t)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.14;color:var(--c-ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;border:0;background:none;cursor:pointer}
::selection{background:var(--c-lime);color:var(--c-ink)}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-card);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;padding:26px 18px 20px;z-index:80;
  transition:width var(--t),transform var(--t);
}
.brand{display:flex;align-items:center;gap:10px;padding:0 8px 26px}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:var(--c-ink);color:var(--c-lime);
  display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:15px;letter-spacing:-.04em;
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-label{font-size:11px;letter-spacing:.16em;color:var(--t-mute);padding:0 10px 10px;text-transform:uppercase}
.nav-list{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:var(--r-btn);
  color:var(--c-ink-3);font-size:15px;font-weight:500;
  transition:background var(--t),color var(--t);
}
.nav-item i{width:18px;text-align:center;font-size:15px;flex:0 0 18px}
.nav-item::before{
  content:"";position:absolute;left:-6px;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:2px;background:var(--c-lime);transition:transform var(--t);
}
.nav-item:hover{background:rgba(13,15,18,.04);color:var(--c-ink)}
.nav-item.active{background:rgba(201,247,58,.12);color:var(--c-ink);font-weight:700}
.nav-item.active::before{transform:translateY(-50%) scaleY(1)}
.side-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:10px}
.side-foot .btn{width:100%;justify-content:center}
.side-note{font-size:12px;line-height:1.6;color:var(--t-mute)}

/* ---------- 顶部栏（移动） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:90;
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar .brand{padding:0}
.topbar .brand-text{font-size:15px}
.hamburger{
  width:42px;height:42px;border-radius:var(--r-btn);display:grid;place-items:center;
  color:var(--c-ink);font-size:18px;transition:background var(--t);
}
.hamburger:hover{background:rgba(13,15,18,.06)}
.overlay{
  display:none;position:fixed;inset:0;z-index:70;
  background:rgba(13,15,18,.45);backdrop-filter:blur(4px);
}
.overlay.show{display:block}

/* ---------- 主区域 ---------- */
.main{margin-left:var(--sidebar-w);padding:0 48px}
.container{max-width:1240px;margin:0 auto}
.section{padding:96px 0}
.section.tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,34px)}
.section-head p{color:var(--t-mute);font-size:15px;margin-top:8px;max-width:620px}
.link-more{font-size:14px;font-weight:700;color:var(--c-ink);border-bottom:2px solid var(--c-lime);padding-bottom:3px;white-space:nowrap}
.link-more:hover{color:var(--c-lime-deep)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
  border:1px solid transparent;
}
.btn-primary{background:var(--c-lime);color:var(--c-ink);box-shadow:0 6px 18px -10px rgba(201,247,58,.9)}
.btn-primary:hover{background:var(--c-lime-deep);box-shadow:0 12px 26px -12px rgba(169,214,42,.95);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--c-ink);color:var(--c-ink);background:transparent}
.btn-ghost:hover{background:var(--c-ink);color:#fff}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{background:var(--c-lime);color:var(--c-ink);transform:translateY(-2px)}
.btn-outline-light{border-color:rgba(245,244,240,.4);color:#F5F4F0}
.btn-outline-light:hover{border-color:var(--c-lime);color:var(--c-lime)}
.btn-sm{padding:9px 16px;font-size:13px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 72px;
  border-bottom:1px solid var(--c-line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.14;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--c-ink-3);
  background:rgba(255,255,255,.75);border:1px solid var(--c-line);
  padding:7px 14px;border-radius:var(--r-pill);margin-bottom:22px;
}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--c-flame);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(32px,4.2vw,52px);line-height:1.1}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,var(--c-lime) 62%)}
.hero-sub{margin-top:22px;font-size:17px;color:var(--c-ink-3);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-media{position:relative}
.hero-media img{border-radius:20px;box-shadow:var(--sh-2);width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media .floating{
  position:absolute;left:-18px;bottom:26px;background:#fff;border-radius:14px;
  box-shadow:var(--sh-2);padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.hero-media .floating i{color:var(--c-lime-deep);font-size:20px}
.hero-media .floating b{font-family:var(--font-mono);font-size:18px;display:block;line-height:1.1}
.hero-media .floating span{font-size:12px;color:var(--t-mute)}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-top:56px;overflow:hidden;
}
.stat{padding:22px 26px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat span{display:block;font-size:13px;color:var(--t-mute);margin-bottom:6px}
.stat b{font-family:var(--font-mono);font-size:19px;font-weight:700;letter-spacing:-.02em}

/* ---------- 功能轮播 ---------- */
.carousel-wrap{position:relative}
.carousel{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 20px;scrollbar-width:none;
}
.carousel::-webkit-scrollbar{display:none}
.slide{
  flex:0 0 272px;scroll-snap-align:start;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.slide:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.slide .shot{
  border-radius:var(--r-img);overflow:hidden;aspect-ratio:9/19.5;background:#EDEBE5;
}
.slide .shot img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--t)}
.slide:hover .shot img{transform:scale(1.03)}
.slide h3{font-size:16px;margin-top:14px}
.slide p{font-size:13px;color:var(--t-mute);margin-top:6px}
.carousel-bar{display:flex;gap:8px;margin-top:4px}
.carousel-bar i{flex:1;height:3px;border-radius:2px;background:var(--c-line);position:relative;overflow:hidden}
.carousel-bar i.on{background:var(--c-lime)}
.carousel-nav{display:flex;gap:10px;position:absolute;top:-70px;right:0}
.carousel-nav button{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);background:#fff;
  display:grid;place-items:center;color:var(--c-ink);transition:all var(--t);
}
.carousel-nav button:hover{background:var(--c-ink);color:#fff;border-color:var(--c-ink)}

/* ---------- 系统要求 ---------- */
.req-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.req-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.req-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.req-card h3{font-size:17px;display:flex;align-items:center;gap:10px}
.req-card h3 i{color:var(--c-lime-deep)}
.req-list{margin-top:16px}
.req-list li{
  display:flex;justify-content:space-between;gap:12px;
  padding:11px 0;border-top:1px solid var(--c-line);font-size:14px;
}
.req-list li:first-child{border-top:0}
.req-list span{color:var(--t-mute)}
.req-list b{font-family:var(--font-mono);font-weight:600;text-align:right}

/* ---------- 评价墙 ---------- */
.review-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.review-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.review-wall .col:nth-child(2){margin-top:34px}
.stars{color:var(--c-flame);font-size:14px;letter-spacing:2px;margin-bottom:12px}
.review-card p{font-size:15px;color:var(--c-ink-3)}
.review-meta{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line)}
.avatar{
  width:36px;height:36px;border-radius:50%;background:var(--c-ink);color:var(--c-lime);
  display:grid;place-items:center;font-family:var(--font-mono);font-size:13px;font-weight:700;
}
.review-meta strong{font-size:14px;display:block}
.tag{
  display:inline-block;font-size:12px;color:var(--t-mute);
  background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:3px 10px;
}

/* ---------- 下载区块 ---------- */
.dl-band{
  background:var(--c-ink);color:#F5F4F0;border-radius:24px;
  padding:64px;display:grid;grid-template-columns:1.2fr auto;gap:48px;align-items:center;
}
.dl-band h2{color:#F5F4F0;font-size:clamp(24px,2.6vw,34px)}
.dl-band p{color:var(--t-dark-mute);margin-top:14px;max-width:560px}
.dl-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.qr-box{
  width:140px;height:140px;background:#fff;border-radius:12px;
  display:grid;place-items:center;text-align:center;color:var(--c-ink);
  font-size:12px;line-height:1.5;padding:12px;
}
.qr-box i{font-size:26px;color:var(--c-ink-3);display:block;margin-bottom:6px}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:#EDEBE5}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--t)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1}
.badge{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--c-ink);
  background:rgba(201,247,58,.4);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px;
}
.news-body h3{font-size:17px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a:hover{color:var(--c-lime-deep)}
.news-body p{
  margin-top:10px;font-size:14px;color:var(--t-mute);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.mono{font-family:var(--font-mono);font-size:12.5px;color:var(--t-mute)}
.read{font-size:13px;font-weight:700;color:var(--c-ink);border-bottom:2px solid var(--c-lime);padding-bottom:2px}
.empty{
  grid-column:1/-1;border:1px dashed var(--c-line);background:rgba(255,255,255,.6);
  border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--t-mute);
}
.empty i{font-size:26px;display:block;margin-bottom:12px;color:var(--c-ink-3)}
.empty p{margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:700;color:var(--c-ink);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-lime-deep)}
.faq-q i{transition:transform var(--t);color:var(--c-lime-deep);font-size:15px}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms cubic-bezier(.2,.7,.3,1)}
.faq-a p{padding:0 4px 24px;color:var(--t-mute);font-size:15px;max-width:760px}

/* ---------- CTA 带 ---------- */
.cta-strip{
  background:var(--c-ink);border-radius:24px;padding:48px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-strip h2{color:#F5F4F0;font-size:clamp(22px,2.2vw,30px)}
.cta-strip p{color:var(--t-dark-mute);margin-top:10px;font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#F5F4F0;margin-top:96px;border-radius:24px 24px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-lime);color:var(--c-ink)}
.footer-brand b{font-size:16px;font-weight:800}
.site-footer h4{color:#F5F4F0;font-size:14px;letter-spacing:.06em;margin-bottom:18px}
.site-footer p{color:var(--t-dark-mute);font-size:14px;max-width:320px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--t-dark-mute);font-size:14px}
.footer-links a:hover{color:var(--c-lime)}
.footer-contact li{color:var(--t-dark-mute);font-size:14px;margin-bottom:12px;display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--c-lime);margin-top:4px}
.footer-bottom{
  border-top:1px solid rgba(245,244,240,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--t-dark-mute);font-size:13px;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}

/* ---------- 平板 ---------- */
@media (min-width:768px) and (max-width:1199px){
  .sidebar{width:76px;padding:22px 12px}
  .brand-text,.nav-text,.side-note,.nav-label{display:none}
  .brand{padding:0 0 22px;justify-content:center}
  .nav-item{justify-content:center;padding:12px 0}
  .sidebar:hover{width:var(--sidebar-w);box-shadow:var(--sh-2)}
  .sidebar:hover .brand-text,.sidebar:hover .nav-text,.sidebar:hover .side-note,.sidebar:hover .nav-label{display:block}
  .sidebar:hover .brand{padding:0 8px 22px;justify-content:flex-start}
  .sidebar:hover .nav-item{justify-content:flex-start;padding:11px 12px}
  .main{margin-left:76px;padding:0 28px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .req-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .review-wall{grid-template-columns:1fr}
  .review-wall .col:nth-child(2){margin-top:0}
  .dl-band{grid-template-columns:1fr;padding:44px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

/* ---------- 手机 ---------- */
@media (max-width:767px){
  .topbar{display:flex}
  .sidebar{width:280px;transform:translateX(-100%);box-shadow:var(--sh-2);padding-top:22px}
  .sidebar.open{transform:none}
  .main{margin-left:0;padding:76px 16px 0}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:28px}
  .hero{padding:40px 0 48px}
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .hero-media .floating{left:12px;bottom:-16px}
  .hero-actions .btn{flex:1;justify-content:center}
  .stats{grid-template-columns:1fr 1fr;margin-top:40px}
  .stat{border-right:0;border-bottom:1px solid var(--c-line)}
  .stat:nth-child(odd){border-right:1px solid var(--c-line)}
  .stat:nth-last-child(-n+2){border-bottom:0}
  .slide{flex:0 0 82%}
  .carousel-nav{display:none}
  .req-grid{grid-template-columns:1fr}
  .review-wall{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .dl-band{padding:32px 24px;border-radius:18px}
  .dl-actions .btn{width:100%;justify-content:center}
  .cta-strip{padding:32px 24px;border-radius:18px}
  .cta-strip .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px}
  .footer-brand,.site-footer p{grid-column:1/-1}
  .site-footer{margin-top:64px;border-radius:18px 18px 0 0}
}
@media (max-width:520px){
  .hero h1{font-size:28px}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0!important;border-bottom:1px solid var(--c-line)}
  .stat:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-ink:#0D0F12;
  --c-ink-2:#1A1E23;
  --c-ink-3:#3A4149;
  --c-paper:#F5F4F0;
  --c-card:#FFFFFF;
  --c-line:#E4E2DB;
  --c-lime:#C9F73A;
  --c-lime-deep:#A9D62A;
  --c-flame:#FF5A2B;
  --c-ok:#2FA36B;
  --c-warn:#E0A800;
  --c-err:#D84343;
  --c-muted:#6E7076;
  --c-muted-2:#9AA0A6;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(13,15,18,.04), 0 8px 24px -12px rgba(13,15,18,.14);
  --shadow-2:0 2px 6px rgba(13,15,18,.06), 0 20px 44px -18px rgba(13,15,18,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:236px;
  --topbar-h:60px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  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 var(--ease),background-color .2s var(--ease);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.15;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;border-radius:4px;}
.mono{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}

/* ============ App shell ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-card);
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  padding:24px 16px 20px;
  z-index:90;
}
.brand{
  display:flex;align-items:center;gap:10px;
  padding:6px 8px 22px;
  border-bottom:1px solid var(--c-line);
}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  background:var(--c-ink);color:var(--c-lime);
  border-radius:11px;
  font-weight:800;font-size:15px;letter-spacing:-.04em;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;}
.nav-list{display:flex;flex-direction:column;gap:4px;margin-top:18px;flex:1 1 auto;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--c-ink-3);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--c-muted);transition:color .2s var(--ease);}
.nav-item:hover{background:rgba(13,15,18,.045);color:var(--c-ink);}
.nav-item:hover i{color:var(--c-ink);}
.nav-item.active{background:rgba(201,247,58,.14);color:var(--c-ink);font-weight:700;}
.nav-item.active i{color:var(--c-ink);}
.nav-item.active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:3px;
  background:var(--c-lime);border-radius:0 3px 3px 0;
}
.nav-text{white-space:nowrap;}
.sidebar-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:12px;}
.sidebar-note{font-size:12px;color:var(--c-muted-2);line-height:1.6;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:700;line-height:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-lime);color:var(--c-ink);box-shadow:0 6px 18px -10px rgba(140,178,20,.9);}
.btn-primary:hover{background:var(--c-lime-deep);box-shadow:0 10px 24px -10px rgba(140,178,20,1);}
.btn-ghost{background:transparent;color:var(--c-ink);border:1px solid var(--c-ink);}
.btn-ghost:hover{background:var(--c-ink);color:#fff;}
.btn-light{background:#fff;color:var(--c-ink);}
.btn-light:hover{background:var(--c-lime);}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35);}
.btn-outline-light:hover{border-color:var(--c-lime);color:var(--c-lime);}
.btn-block{width:100%;}

/* ============ Layout ============ */
.main{
  margin-left:var(--sidebar-w);
  padding:0 48px;
  min-height:100vh;
}
.container{max-width:1240px;margin:0 auto;}
.container-narrow{max-width:820px;margin:0 auto;}

.topbar{display:none;}
.drawer-mask{
  display:none;position:fixed;inset:0;
  background:rgba(13,15,18,.45);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  z-index:110;
}
.drawer-mask.show{display:block;}

/* ============ Breadcrumb ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);
  padding:34px 0 26px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-ink);}
.breadcrumb .sep{color:#C4C1B8;}
.breadcrumb .current{
  color:var(--c-ink);font-weight:600;
  max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ Article head ============ */
.article-head{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:36px 40px 32px;
  box-shadow:var(--shadow-1);
  background-image:linear-gradient(180deg,rgba(201,247,58,.10),rgba(201,247,58,0) 62%);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.01em;
}
.badge-lime{background:rgba(201,247,58,.28);color:#3E5205;}
.badge-ink{background:var(--c-ink);color:#fff;}
.badge-flame{background:rgba(255,90,43,.12);color:#C93A12;}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;line-height:1.2;letter-spacing:-.025em;
  margin-top:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  margin-top:22px;padding-top:20px;
  border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:#B9B6AC;}
.article-meta time{font-family:ui-monospace,Menlo,Consolas,monospace;}

/* ============ Article body ============ */
.article-body-wrap{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:44px 48px 52px;
  margin-top:24px;
}
.article-body{
  max-width:780px;margin:0 auto;
  font-size:17px;line-height:1.78;color:#22262C;
  word-wrap:break-word;
}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.3vw,28px);
  line-height:1.32;
  margin:2.1em 0 .75em;
  padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;
  background:var(--c-lime);border-radius:2px;
}
.article-body h3{font-size:19px;margin:1.7em 0 .6em;}
.article-body h4{font-size:17px;margin:1.5em 0 .5em;}
.article-body img{border-radius:var(--radius-img);box-shadow:0 1px 2px rgba(13,15,18,.05);margin:1.7em auto;}
.article-body blockquote{
  margin:1.7em 0;padding:16px 24px;
  border-left:4px solid var(--c-lime);
  background:#FAFAF5;border-radius:0 12px 12px 0;
  color:#2C3A31;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.45em 0;}
.article-body a{color:var(--c-ink);font-weight:600;border-bottom:2px solid var(--c-lime);}
.article-body a:hover{border-bottom-color:var(--c-lime-deep);}
.article-body code{
  background:#F2F1EA;border:1px solid var(--c-line);border-radius:6px;
  padding:2px 6px;font-size:.9em;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--c-ink);color:#EDEFEA;
  border-radius:var(--radius-img);
  padding:20px 22px;overflow-x:auto;
  margin:1.7em 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;border:0;padding:0;color:inherit;}
.article-body table{
  width:100%;border-collapse:collapse;display:block;overflow-x:auto;
  margin:1.7em 0;font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);padding:11px 14px;text-align:left;white-space:nowrap;
}
.article-body th{background:#F7F7F1;font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0;}

/* ============ Empty state ============ */
.empty-state{
  max-width:780px;margin:0 auto;
  border:1px dashed #CFCCC1;border-radius:var(--radius-card);
  background:#FBFBF7;
  padding:56px 32px;text-align:center;
}
.empty-state i{font-size:32px;color:#C4C1B8;}
.empty-state h3{margin-top:16px;font-size:20px;}
.empty-state p{margin-top:10px;color:var(--c-muted);font-size:14.5px;}
.empty-state .btn{margin-top:22px;}

/* ============ Section ============ */
.section{padding:64px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:26px;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px);}
.section-head .link-more{font-size:14px;font-weight:700;color:var(--c-ink);display:inline-flex;align-items:center;gap:6px;}
.section-head .link-more:hover{color:#7FA300;}

/* ============ Cards ============ */
.card-grid{
  display:grid;gap:24px;
  grid-template-columns:repeat(3,minmax(0,1fr));
}
.card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D3C9;}
.card-media{
  aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#EEEDE7,#F7F6F1);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:16.5px;line-height:1.45;font-weight:800;}
.card-body p{font-size:14px;color:var(--c-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--c-muted-2);
}
.card-foot time{font-family:ui-monospace,Menlo,Consolas,monospace;}
.card-foot .read{font-weight:700;color:var(--c-ink);display:inline-flex;align-items:center;gap:5px;}
.card:hover .card-foot .read{color:#7FA300;}

/* ============ CTA band ============ */
.cta-band{
  margin-top:72px;
  background:var(--c-ink);
  border-radius:22px;
  padding:56px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,247,58,.20),rgba(201,247,58,0) 68%);
}
.cta-band h2{color:#F5F4F0;font-size:clamp(24px,2.6vw,34px);max-width:560px;}
.cta-band p{color:#9AA0A6;margin-top:14px;font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ============ Footer ============ */
.site-footer{
  margin-top:88px;
  background:var(--c-ink);
  color:#F5F4F0;
  border-radius:22px 22px 0 0;
  padding:64px 0 28px;
  margin-left:var(--sidebar-w);
  padding-left:48px;padding-right:48px;
}
.footer-grid{
  display:grid;gap:40px;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  max-width:1240px;margin:0 auto;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-lime);color:var(--c-ink);}
.footer-brand b{font-size:16px;font-weight:800;}
.site-footer p{color:#9AA0A6;font-size:14px;line-height:1.75;max-width:330px;}
.site-footer h4{font-size:14px;font-weight:800;color:#F5F4F0;margin-bottom:16px;letter-spacing:0;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:#9AA0A6;}
.footer-links a:hover{color:var(--c-lime);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#9AA0A6;line-height:1.6;}
.footer-contact i{color:var(--c-lime);margin-top:4px;width:14px;text-align:center;}
.footer-bottom{
  max-width:1240px;margin:48px auto 0;padding-top:22px;
  border-top:1px solid rgba(245,244,240,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7E848B;
}

/* ============ Motion ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ============ Responsive ============ */
@media (max-width:1199px) and (min-width:768px){
  .sidebar{width:76px;padding:20px 10px;}
  .sidebar .brand{padding:6px 0 18px;justify-content:center;}
  .sidebar .brand-text{display:none;}
  .nav-item{justify-content:center;padding:12px 0;}
  .nav-item.active::before{left:-10px;}
  .sidebar .nav-text{display:none;}
  .sidebar .btn-label{display:none;}
  .sidebar-note{display:none;}
  .main{margin-left:76px;padding:0 32px;}
  .site-footer{margin-left:76px;padding-left:32px;padding-right:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-head{padding:30px 28px 26px;}
  .article-body-wrap{padding:32px 28px 40px;}
}
@media (max-width:767px){
  .topbar{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid var(--c-line);
    padding:0 16px;z-index:100;
  }
  .topbar .brand{padding:0;border:0;gap:9px;}
  .topbar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:13px;border-radius:9px;}
  .topbar .brand-text{font-size:15px;}
  .hamburger{
    width:40px;height:40px;border-radius:10px;
    display:grid;place-items:center;font-size:17px;color:var(--c-ink);
    border:1px solid var(--c-line);background:#fff;
  }
  .hamburger:hover{background:#F7F7F1;}
  .sidebar{
    width:280px;padding:22px 16px 20px;
    transform:translateX(-100%);
    transition:transform .26s var(--ease);
    box-shadow:var(--shadow-2);
    z-index:120;
  }
  .sidebar.open{transform:none;}
  .sidebar .brand-text,
  .sidebar .nav-text{display:inline;}
  .sidebar .btn-label{display:inline;}
  .sidebar-note{display:block;}
  .nav-item{justify-content:flex-start;padding:12px;}
  .nav-item.active::before{left:-16px;}
  .main{margin-left:0;padding:var(--topbar-h) 16px 0;}
  .container{max-width:100%;}
  .site-footer{
    margin-left:0;padding:44px 16px 24px;
    border-radius:18px 18px 0 0;margin-top:60px;
  }
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
  .article-head{padding:24px 20px 22px;}
  .article-title{margin-top:14px;}
  .article-meta{gap:8px 18px;}
  .article-body-wrap{padding:24px 18px 32px;}
  .article-body{font-size:16px;}
  .breadcrumb{padding:24px 0 18px;}
  .breadcrumb .current{max-width:180px;}
  .section{padding:48px 0 0;}
  .card-grid{grid-template-columns:1fr;}
  .cta-band{margin-top:52px;padding:36px 24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 46%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .article-meta{font-size:12.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions .btn{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --c-ink:#0D0F12;
  --c-ink-2:#1A1E23;
  --c-ink-3:#3A4149;
  --c-paper:#F5F4F0;
  --c-card:#FFFFFF;
  --c-line:#E4E2DB;
  --c-lime:#C9F73A;
  --c-lime-deep:#A9D62A;
  --c-flame:#FF5A2B;
  --c-ok:#2FA36B;
  --c-warn:#E0A800;
  --c-err:#D84343;
  --t-muted:#6E7076;
  --t-onDark:#F5F4F0;
  --t-onDark-2:#9AA0A6;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"Space Grotesk",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(13,15,18,.04),0 8px 24px -12px rgba(13,15,18,.14);
  --shadow-hover:0 2px 4px rgba(13,15,18,.05),0 18px 38px -16px rgba(13,15,18,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.14}
p{margin:0}
:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;border-radius:6px}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;top:0;left:0;z-index:60;
  width:var(--sidebar-w);height:100vh;
  background:var(--c-ink);color:var(--t-onDark);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;overflow-x:hidden;
  transition:width .22s var(--ease),transform .28s var(--ease);
}
.main{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;flex-direction:column;
  transition:margin-left .22s var(--ease);
}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px}

/* ---------- 侧栏品牌与导航 ---------- */
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:10px;
  background:var(--c-lime);color:var(--c-ink);
  display:grid;place-items:center;
  font-family:var(--font-mono);font-weight:700;font-size:15px;letter-spacing:-.03em;
}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-desc{font-size:12.5px;color:var(--t-onDark-2);padding:0 6px;margin-top:-8px;white-space:nowrap}
.nav-list{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 13px;border-radius:10px;
  color:#C7CDD3;font-size:15px;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:#8B939B;transition:color .2s var(--ease)}
.nav-item:hover{background:rgba(245,244,240,.07);color:#fff}
.nav-item:hover i{color:var(--c-lime)}
.nav-item.active{background:rgba(201,247,58,.12);color:#fff;font-weight:700}
.nav-item.active i{color:var(--c-lime)}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:0 3px 3px 0;background:var(--c-lime);
}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:18px;border-top:1px solid rgba(245,244,240,.1)}
.side-meta{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:#6E7076;white-space:nowrap}
.side-meta a:hover{color:var(--c-lime)}

/* ---------- 顶栏与抽屉（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  background:var(--c-ink);color:var(--t-onDark);
  align-items:center;gap:12px;padding:0 16px;
  border-bottom:1px solid rgba(245,244,240,.1);
}
.topbar .brand{padding:0;flex:1}
.hamburger{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(245,244,240,.18);
  background:transparent;display:grid;place-items:center;cursor:pointer;
  transition:background .2s var(--ease);
}
.hamburger:hover{background:rgba(245,244,240,.1)}
.topbar-dl{
  width:38px;height:38px;border-radius:10px;background:var(--c-lime);color:var(--c-ink);
  display:grid;place-items:center;font-size:15px;
}
.overlay{
  position:fixed;inset:0;z-index:55;
  background:rgba(13,15,18,.45);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.overlay.show{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-lime);color:var(--c-ink);box-shadow:0 10px 26px -14px rgba(169,214,42,.95)}
.btn-primary:hover{background:var(--c-lime-deep);box-shadow:0 14px 30px -14px rgba(169,214,42,1)}
.btn-ghost{background:var(--c-card);border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-ink)}
.btn-ghost-light{background:transparent;border-color:rgba(245,244,240,.32);color:var(--t-onDark)}
.btn-ghost-light:hover{background:rgba(245,244,240,.1);border-color:rgba(245,244,240,.6)}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{background:var(--c-lime)}
.btn-block{width:100%}
.btn-sm{padding:10px 16px;font-size:14px}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-ink);color:var(--t-onDark)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(245,244,240,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(245,244,240,.05) 1px,transparent 1px);
  background-size:54px 54px;
  pointer-events:none;
}
.page-hero .container{
  position:relative;z-index:2;
  padding-top:44px;padding-bottom:92px;min-height:300px;
  display:flex;flex-direction:column;justify-content:center;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-onDark-2);margin-bottom:22px}
.crumb a{transition:color .2s var(--ease)}
.crumb a:hover{color:var(--c-lime)}
.crumb .sep{color:#4B525A}
.crumb .current{color:var(--c-lime)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(201,247,58,.14);color:var(--c-lime);
  border:1px solid rgba(201,247,58,.3);
  font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:20px;
}
.page-hero h1{font-size:clamp(30px,4vw,46px);max-width:15em;line-height:1.1}
.page-hero .hero-sub{margin-top:18px;max-width:640px;color:#B9BFC6;font-size:16.5px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- 数据条 ---------- */
.stat-bar{
  position:relative;z-index:5;margin-top:-56px;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
}
.stat{padding:24px 26px;border-left:1px solid var(--c-line)}
.stat:first-child{border-left:0}
.stat-num{font-family:var(--font-mono);font-size:22px;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.stat-label{font-size:13px;color:var(--t-muted);margin-top:4px}

/* ---------- 板块通用 ---------- */
.section{padding-top:80px}
.sec-head{max-width:740px;margin-bottom:38px}
.sec-eyebrow{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(201,247,58,.32);color:#2C3A05;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;margin-bottom:14px;
}
.sec-title{font-size:clamp(24px,2.6vw,34px)}
.sec-desc{color:var(--t-muted);margin-top:12px;font-size:16.5px;max-width:62ch}

/* ---------- 图文交替块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:32px 0}
.split + .split{border-top:1px solid var(--c-line)}
.split-media img{
  width:100%;height:330px;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--c-line);
  box-shadow:var(--shadow);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.split-media img:hover{transform:scale(1.015);box-shadow:var(--shadow-hover)}
.split.reverse .split-media{order:2}
.split h3{font-size:clamp(20px,2.1vw,26px);margin-bottom:14px}
.split p{color:var(--t-muted);font-size:16.5px}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px}
.check-list i{color:var(--c-ok);margin-top:5px;font-size:14px}
.step-index{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;
  color:var(--c-lime-deep);margin-bottom:12px;display:block;
}

/* ---------- 竖向时间线 ---------- */
.timeline{position:relative;padding-left:44px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:13px;top:8px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--c-lime) 0%,rgba(201,247,58,.35) 60%,rgba(201,247,58,0) 100%);
}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-44px;top:0;
  width:28px;height:28px;border-radius:50%;
  background:var(--c-card);border:2px solid var(--c-lime);
  display:grid;place-items:center;
  font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--c-ink);
}
.tl-item h3{font-size:19px;margin-bottom:8px}
.tl-item p{color:var(--t-muted);font-size:15.5px;max-width:70ch}

/* ---------- 要点卡片 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D6D3C9}
.card-icon{
  width:42px;height:42px;border-radius:12px;
  background:rgba(201,247,58,.28);color:#2C3A05;
  display:grid;place-items:center;font-size:17px;margin-bottom:16px;
}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--t-muted);font-size:15.5px}
.card-tag{
  display:inline-block;margin-top:16px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(13,15,18,.05);color:var(--c-ink-3);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;
}

/* ---------- 深色 CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  margin-top:80px;
  background:var(--c-ink);color:var(--t-onDark);
  border-radius:20px;
  padding:56px;
  display:grid;grid-template-columns:1.5fr auto;gap:44px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,2.6vw,34px);max-width:18em}
.cta-band p{color:#B9BFC6;margin-top:14px;max-width:56ch;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.qr-box{
  width:140px;height:140px;border-radius:12px;background:#fff;color:var(--c-ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  font-size:12px;font-weight:600;color:var(--t-muted);text-align:center;padding:12px;
}
.qr-box i{font-size:30px;color:var(--c-ink)}

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-card);overflow:hidden;box-shadow:var(--shadow)}
.faq-item{border-top:1px solid var(--c-line)}
.faq-item:first-child{border-top:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:20px 26px;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  transition:background .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FAFAF6}
.faq-mark{position:relative;width:16px;height:16px;flex:none}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;background:var(--c-ink-3);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease),background .2s var(--ease);
}
.faq-mark::before{left:0;top:7px;width:16px;height:2px}
.faq-mark::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-mark::after{transform:rotate(90deg);opacity:0}
.faq-item[open] .faq-mark::before{background:var(--c-lime-deep)}
.faq-body{padding:0 26px 24px;color:var(--t-muted);font-size:15.5px;max-width:78ch}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--t-onDark);padding:64px 0 28px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--c-lime);color:var(--c-ink);
  display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:14px;
}
.site-footer p{color:var(--t-onDark-2);font-size:14.5px;max-width:330px}
.site-footer h4{font-size:13px;letter-spacing:.14em;color:var(--t-onDark);margin-bottom:16px;font-family:var(--font-mono);font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--t-onDark-2);font-size:14.5px;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--c-lime)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:var(--t-onDark-2);font-size:14.5px}
.footer-contact i{color:var(--c-lime);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(245,244,240,.12);margin-top:44px;padding-top:22px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  color:#6E7076;font-size:13px;font-family:var(--font-mono);
}

/* ---------- 动效 ---------- */
html.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html.js .reveal{opacity:1;transform:none}
}

/* ---------- 平板 ---------- */
@media (min-width:768px) and (max-width:1199px){
  :root{--sidebar-w:76px}
  .sidebar{padding:22px 12px}
  .sidebar .brand{justify-content:center;padding:4px 0}
  .sidebar .brand-name,.sidebar .brand-desc,.sidebar .nav-text,.sidebar .side-meta{display:none}
  .sidebar .nav-item{justify-content:center;padding:12px 0}
  .sidebar .nav-item i{width:auto;font-size:17px}
  .sidebar .sidebar-foot .btn-text{display:none}
  .sidebar .sidebar-foot .btn{padding:12px 0}
  .sidebar:hover,.sidebar:focus-within{width:236px;padding:22px 18px;box-shadow:24px 0 48px -24px rgba(13,15,18,.45)}
  .sidebar:hover .brand,.sidebar:focus-within .brand{justify-content:flex-start;padding:4px 6px}
  .sidebar:hover .brand-name,.sidebar:hover .brand-desc,.sidebar:hover .nav-text,.sidebar:hover .side-meta,
  .sidebar:focus-within .brand-name,.sidebar:focus-within .brand-desc,.sidebar:focus-within .nav-text,.sidebar:focus-within .side-meta{display:block}
  .sidebar:hover .nav-item,.sidebar:focus-within .nav-item{justify-content:flex-start;padding:11px 13px}
  .sidebar:hover .nav-item i,.sidebar:focus-within .nav-item i{width:18px}
  .sidebar:hover .sidebar-foot .btn-text,.sidebar:focus-within .sidebar-foot .btn-text{display:inline}
  .sidebar:hover .sidebar-foot .btn,.sidebar:focus-within .sidebar-foot .btn{padding:13px 22px}
  .container{padding:0 32px}
  .split{gap:36px}
  .split-media img{height:270px}
  .cta-band{padding:44px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}

/* ---------- 手机 ---------- */
@media (max-width:767px){
  :root{--sidebar-w:280px}
  .topbar{display:flex}
  .sidebar{
    width:280px;transform:translateX(-100%);
    padding:24px 18px;box-shadow:24px 0 48px -24px rgba(13,15,18,.5);
  }
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;padding-top:60px}
  .container{padding:0 18px}
  .page-hero .container{padding-top:36px;padding-bottom:80px;min-height:240px}
  .page-hero h1{font-size:clamp(26px,7.4vw,34px)}
  .page-hero .hero-sub{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto}
  .stat-bar{grid-template-columns:repeat(2,1fr);margin-top:-48px}
  .stat{padding:18px 18px;border-left:1px solid var(--c-line)}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--c-line)}
  .stat-num{font-size:19px}
  .section{padding-top:56px}
  .split{grid-template-columns:1fr;gap:26px;padding:26px 0}
  .split.reverse .split-media{order:0}
  .split-media img{height:220px}
  .grid-2{grid-template-columns:1fr;gap:18px}
  .cta-band{grid-template-columns:1fr;padding:34px 24px;gap:28px;border-radius:16px;margin-top:56px}
  .cta-actions .btn{flex:1 1 auto}
  .qr-box{width:130px;height:130px}
  .faq-item summary{padding:17px 18px;font-size:16px}
  .faq-body{padding:0 18px 20px}
  .site-footer{padding:52px 0 24px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px 22px}
  .footer-grid > div:first-child{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .stat-bar{grid-template-columns:1fr}
  .stat{border-left:0}
  .stat + .stat{border-top:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --c-ink:#0D0F12;
  --c-ink-2:#1A1E23;
  --c-ink-3:#3A4149;
  --c-paper:#F5F4F0;
  --c-card:#FFFFFF;
  --c-line:#E4E2DB;
  --c-lime:#C9F73A;
  --c-lime-deep:#A9D62A;
  --c-flame:#FF5A2B;
  --c-ok:#2FA36B;
  --c-warn:#E0A800;
  --c-err:#D84343;
  --c-text:#0D0F12;
  --c-text-2:#6E7076;
  --c-text-3:#9AA0A6;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(13,15,18,.04), 0 8px 24px -12px rgba(13,15,18,.14);
  --sh-2:0 2px 6px rgba(13,15,18,.06), 0 18px 40px -18px rgba(13,15,18,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms var(--ease);
  --font-mono:ui-monospace,"Space Grotesk",SFMono-Regular,Menlo,Consolas,monospace;
  --sidebar-w:236px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button,input{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.15;}
p{margin:0;}
::selection{background:var(--c-lime);color:var(--c-ink);}
:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;border-radius:6px;}

/* ---------- 布局骨架 ---------- */
.layout{min-height:100vh;}
.content{margin-left:var(--sidebar-w);padding:0 48px 0 0;transition:margin-left var(--t);}
.container{max-width:1240px;margin:0 auto;padding:0 0 0 48px;width:100%;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);}
.section-head p{color:var(--c-text-2);font-size:15px;margin-top:8px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-ink-3);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-lime);display:block;}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-card);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  padding:24px 16px 20px;z-index:60;
  transition:width var(--t),transform var(--t);
}
.sidebar-head{padding:0 8px 20px;border-bottom:1px solid var(--c-line);margin-bottom:14px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:var(--c-ink);color:var(--c-lime);
  display:grid;place-items:center;
  font-family:var(--font-mono);font-weight:700;font-size:15px;letter-spacing:-.04em;
}
.brand-word{font-weight:800;font-size:17px;letter-spacing:-.02em;white-space:nowrap;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px 11px 14px;border-radius:11px;
  color:var(--c-ink-3);font-size:15px;font-weight:600;
  transition:background var(--t),color var(--t);
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--c-text-3);transition:color var(--t);}
.nav-item:hover{background:rgba(13,15,18,.04);color:var(--c-ink);}
.nav-item:hover i{color:var(--c-ink-3);}
.nav-item.active{background:rgba(201,247,58,.12);color:var(--c-ink);font-weight:700;}
.nav-item.active i{color:var(--c-ink);}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:var(--c-lime);border-radius:0 3px 3px 0;
}
.sidebar-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-line);}
.sidebar-note{font-size:12px;color:var(--c-text-2);margin-top:10px;text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn-primary{background:var(--c-lime);color:var(--c-ink);box-shadow:0 8px 20px -12px rgba(169,214,42,.9);}
.btn-primary:hover{background:var(--c-lime-deep);box-shadow:0 14px 28px -14px rgba(169,214,42,1);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:rgba(13,15,18,.22);}
.btn-ghost:hover{border-color:var(--c-ink);background:rgba(13,15,18,.04);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--c-ink);}
.btn-light:hover{background:#EDEDE8;transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:var(--c-lime);border-color:rgba(201,247,58,.55);}
.btn-outline-light:hover{background:rgba(201,247,58,.12);border-color:var(--c-lime);}
.btn-block{width:100%;}
.btn-lg{padding:15px 28px;font-size:16px;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 顶栏（移动端） ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:60px;
  align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);
}
.hamburger{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(13,15,18,.45);
  backdrop-filter:blur(4px);opacity:0;pointer-events:none;
  transition:opacity var(--t);z-index:55;
}
.drawer-mask.show{opacity:1;pointer-events:auto;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:40px;border-radius:20px;
  background:var(--c-ink);color:#F5F4F0;
  padding:44px 44px 46px;min-height:280px;
  display:flex;flex-direction:column;justify-content:center;
  box-shadow:var(--sh-2);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:46px 46px;
}
.page-hero > *{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#B9BEC4;margin-bottom:18px;}
.crumb a{color:#B9BEC4;transition:color var(--t);}
.crumb a:hover{color:var(--c-lime);}
.crumb span.sep{color:#5B6169;}
.page-hero h1{font-size:clamp(30px,4vw,46px);max-width:820px;}
.page-hero .lead{
  margin-top:16px;max-width:680px;color:#C6CBD1;font-size:16px;line-height:1.8;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.09);color:#E7EAEC;border:1px solid rgba(255,255,255,.14);
}
.pill i{color:var(--c-lime);font-size:12px;}

/* ---------- 数据条 ---------- */
.statbar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  margin-top:-32px;position:relative;z-index:5;overflow:hidden;
}
.statbar .stat{padding:22px 24px;border-right:1px solid var(--c-line);}
.statbar .stat:last-child{border-right:0;}
.stat .k{font-size:12.5px;color:var(--c-text-2);letter-spacing:.04em;}
.stat .v{font-family:var(--font-mono);font-size:22px;font-weight:700;margin-top:6px;letter-spacing:-.02em;}
.stat .v small{font-size:13px;color:var(--c-text-2);font-weight:500;margin-left:4px;}

/* ---------- 大序号列表 + 信息卡 ---------- */
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:36px;align-items:start;}
.num-list{display:flex;flex-direction:column;gap:18px;counter-reset:n;padding-left:0;}
.num-item{
  display:flex;gap:22px;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.num-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6D3C8;}
.num-badge{
  font-family:var(--font-mono);font-size:64px;line-height:.9;font-weight:700;
  color:transparent;-webkit-text-stroke:1.6px rgba(13,15,18,.24);
  flex:0 0 auto;letter-spacing:-.04em;user-select:none;
}
.num-body h3{font-size:20px;margin-bottom:8px;}
.num-body p{color:var(--c-text-2);font-size:15px;}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(13,15,18,.05);color:var(--c-ink-3);
}
.tag.lime{background:rgba(201,247,58,.22);color:#5C7A0C;}
.tag.flame{background:rgba(255,90,43,.12);color:#C43A12;}

/* 信息卡 */
.info-card{
  position:sticky;top:32px;
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:26px;overflow:hidden;
}
.info-card h3{font-size:18px;margin-bottom:6px;}
.info-card .sub{font-size:13px;color:var(--c-text-2);margin-bottom:18px;}
.kv{display:flex;flex-direction:column;}
.kv-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;border-bottom:1px solid var(--c-line);font-size:14px;
}
.kv-row:last-child{border-bottom:0;}
.kv-row .k{color:var(--c-text-2);}
.kv-row .v{font-family:var(--font-mono);font-weight:700;letter-spacing:-.01em;}
.qr{
  width:140px;height:140px;margin:20px auto 12px;background:#fff;
  border:1px solid var(--c-line);border-radius:12px;
  display:grid;place-items:center;color:var(--c-text-3);font-size:12px;text-align:center;
  box-shadow:var(--sh-1);
}
.qr i{font-size:30px;color:#C6C4BA;display:block;margin-bottom:8px;}
.info-card .foot-note{font-size:12.5px;color:var(--c-text-2);text-align:center;margin-top:8px;}

/* ---------- 深色 CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background:var(--c-ink);color:#F5F4F0;padding:52px 48px;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,247,58,.28),transparent 68%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);max-width:620px;}
.cta-band p{color:#B9BEC4;margin-top:12px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}

/* ---------- 平台矩阵 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;align-items:center;}
.card{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6D3C8;}
.plat-icon{
  width:44px;height:44px;border-radius:12px;background:rgba(13,15,18,.05);
  display:grid;place-items:center;color:var(--c-ink);font-size:19px;margin-bottom:16px;
}
.card h3{font-size:17px;margin-bottom:8px;}
.card p{font-size:14px;color:var(--c-text-2);}
.plat-list{margin-top:16px;border-top:1px solid var(--c-line);}
.plat-list li{
  display:flex;justify-content:space-between;gap:10px;
  padding:9px 0;border-bottom:1px solid var(--c-line);font-size:13px;
}
.plat-list li:last-child{border-bottom:0;}
.plat-list .k{color:var(--c-text-2);}
.plat-list .v{font-family:var(--font-mono);font-weight:700;}

/* 图文区块 */
.figure-block{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.figure-block img{border-radius:var(--r-img);box-shadow:var(--sh-1);width:100%;height:100%;object-fit:cover;}
.mini-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.mini-list li{display:flex;gap:12px;font-size:15px;color:var(--c-text-2);}
.mini-list i{color:var(--c-lime-deep);margin-top:5px;font-size:14px;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;font-size:17px;font-weight:700;text-align:left;color:var(--c-ink);
  transition:color var(--t);
}
.faq-q:hover{color:#5C7A0C;}
.faq-q .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-line);display:grid;place-items:center;
  color:var(--c-ink-3);font-size:12px;transition:transform var(--t),background var(--t),color var(--t);
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--c-lime);color:var(--c-ink);border-color:var(--c-lime);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);}
.faq-a p{padding:0 4px 22px;color:var(--c-text-2);font-size:15px;max-width:860px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#F5F4F0;margin-top:72px;padding:64px 0 26px;}
.site-footer .container{padding-left:48px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--c-lime);}
.footer-brand b{font-size:17px;}
.site-footer p{color:#9AA0A6;font-size:14px;max-width:320px;}
.site-footer h4{font-size:14px;letter-spacing:.06em;color:#F5F4F0;margin-bottom:16px;text-transform:uppercase;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#9AA0A6;font-size:14px;transition:color var(--t);}
.footer-links a:hover{color:var(--c-lime);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;color:#9AA0A6;font-size:14px;}
.footer-contact i{color:var(--c-lime);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:#7C8288;font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sidebar-w:76px;}
  .sidebar{padding:20px 12px;}
  .sidebar-head{padding:0 0 16px;display:flex;justify-content:center;}
  .brand{justify-content:center;}
  .brand-word,.nav-text,.sidebar-note{display:none;}
  .nav-item{justify-content:center;padding:12px 0;gap:0;}
  .nav-item.active::before{top:8px;bottom:8px;}
  .sidebar-foot .btn span{display:none;}
  .sidebar:hover{width:236px;box-shadow:var(--sh-2);}
  .sidebar:hover .brand-word,.sidebar:hover .nav-text,.sidebar:hover .sidebar-note{display:block;}
  .sidebar:hover .nav-item{justify-content:flex-start;padding:11px 12px 11px 14px;gap:12px;}
  .sidebar:hover .btn span{display:inline;}
  .sidebar:hover .sidebar-foot .btn{justify-content:center;}
  .content{padding-right:32px;}
  .container{padding-left:32px;}
  .site-footer .container{padding-left:32px;}
  .two-col{grid-template-columns:minmax(0,1fr) 320px;gap:28px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .two-col{grid-template-columns:1fr;}
  .info-card{position:static;}
  .statbar{grid-template-columns:repeat(2,1fr);}
  .statbar .stat:nth-child(2){border-right:0;}
  .statbar .stat:nth-child(1),.statbar .stat:nth-child(2){border-bottom:1px solid var(--c-line);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-2{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px;}
}
@media (max-width:767px){
  .topbar{display:flex;}
  .content{margin-left:0;padding-right:0;}
  .container{padding-left:16px;padding-right:16px;}
  .site-footer .container{padding-left:16px;padding-right:16px;}
  .sidebar{
    width:280px;transform:translateX(-100%);
    padding:20px 16px;box-shadow:var(--sh-2);
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar .brand-word,.sidebar .nav-text,.sidebar .sidebar-note{display:block;}
  .sidebar .brand{justify-content:flex-start;}
  .sidebar .nav-item{justify-content:flex-start;padding:12px 12px 12px 14px;gap:12px;}
  .sidebar .sidebar-foot .btn span{display:inline;}
  .section{padding:48px 0;}
  .section-tight{padding:36px 0;}
  .page-hero{margin-top:20px;padding:30px 22px 34px;min-height:0;border-radius:16px;}
  .page-hero h1{font-size:28px;}
  .hero-actions .btn{flex:1 1 100%;}
  .statbar{margin-top:20px;grid-template-columns:1fr 1fr;}
  .stat{padding:18px;}
  .num-item{padding:20px;gap:14px;flex-direction:column;}
  .num-badge{font-size:44px;}
  .grid-4,.grid-3{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;border-radius:16px;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .faq-q{font-size:16px;}
  .figure-block{padding:20px;}
}
@media (max-width:520px){
  .statbar{grid-template-columns:1fr;}
  .statbar .stat{border-right:0;border-bottom:1px solid var(--c-line);}
  .statbar .stat:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --c-ink:#0D0F12;
  --c-ink-2:#1A1E23;
  --c-ink-3:#3A4149;
  --c-paper:#F5F4F0;
  --c-card:#FFFFFF;
  --c-line:#E4E2DB;
  --c-lime:#C9F73A;
  --c-lime-deep:#A9D62A;
  --c-flame:#FF5A2B;
  --c-ok:#2FA36B;
  --c-warn:#E0A800;
  --c-err:#D84343;
  --t-main:#0D0F12;
  --t-mute:#6E7076;
  --t-soft:#9AA0A6;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,15,18,.04), 0 8px 24px -12px rgba(13,15,18,.14);
  --sh-2:0 2px 4px rgba(13,15,18,.06), 0 18px 40px -18px rgba(13,15,18,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:236px;
  --gap:24px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--t-main);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.16;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.mono{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 容器 ---------- */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 48px;
}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  width:var(--side);
  height:100vh;
  background:var(--c-ink);
  color:#F5F4F0;
  display:flex;
  flex-direction:column;
  gap:28px;
  padding:26px 18px 22px;
  z-index:70;
  transition:width 200ms var(--ease),transform 240ms var(--ease);
  overflow:hidden;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:4px 8px 0;
  white-space:nowrap;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  flex:0 0 34px;
  border-radius:10px;
  background:var(--c-lime);
  color:var(--c-ink);
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  letter-spacing:-.02em;
}
.brand-name{
  font-size:16px;
  font-weight:800;
  letter-spacing:-.01em;
  transition:opacity 180ms var(--ease);
}
.nav-list{
  display:flex;
  flex-direction:column;
  gap:6px;
  flex:1 1 auto;
  overflow-y:auto;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 12px;
  border-radius:10px;
  color:#D7D9DC;
  font-size:15px;
  white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.nav-item i{
  width:20px;
  flex:0 0 20px;
  text-align:center;
  font-size:15px;
}
.nav-item::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%) scaleY(0);
  width:3px;
  height:22px;
  border-radius:0 3px 3px 0;
  background:var(--c-lime);
  transition:transform 200ms var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-item.active{
  background:rgba(201,247,58,.12);
  color:#fff;
  font-weight:700;
}
.nav-item.active::before{transform:translateY(-50%) scaleY(1);}
.nav-item:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;}
.nav-text{transition:opacity 180ms var(--ease);}
.sidebar-foot{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:18px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  transition:background 200ms var(--ease),color 200ms var(--ease),box-shadow 200ms var(--ease),transform 120ms var(--ease),border-color 200ms var(--ease);
  border:1px solid transparent;
}
.btn:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;}
.btn-primary{background:var(--c-lime);color:var(--c-ink);box-shadow:0 8px 20px -12px rgba(201,247,58,.9);}
.btn-primary:hover{background:var(--c-lime-deep);box-shadow:0 12px 26px -12px rgba(169,214,42,.95);}
.btn-outline{border-color:rgba(13,15,18,.2);color:var(--c-ink);background:transparent;}
.btn-outline:hover{border-color:var(--c-ink);background:rgba(13,15,18,.05);}
.btn-dark{background:var(--c-ink);color:#fff;}
.btn-dark:hover{background:var(--c-ink-2);box-shadow:var(--sh-2);}
.btn-light{background:#fff;color:var(--c-ink);}
.btn-light:hover{background:#EFEEE9;}
.btn-lime-outline{border-color:var(--c-lime);color:var(--c-lime);background:transparent;}
.btn-lime-outline:hover{background:rgba(201,247,58,.14);}
.btn-block{width:100%;}
.sidebar-note{
  font-size:12px;
  line-height:1.7;
  color:var(--t-soft);
  padding:0 6px;
  white-space:nowrap;
}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:60px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(13,15,18,.96);
  color:#fff;
  z-index:80;
  backdrop-filter:blur(8px);
}
.topbar .brand{padding:0;}
.topbar .brand-name{color:#fff;}
.hamburger{
  width:40px;
  height:40px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  color:#fff;
  background:rgba(255,255,255,.08);
}
.hamburger:hover{background:rgba(255,255,255,.16);}
.hamburger:focus-visible{outline:2px solid var(--c-lime);outline-offset:2px;}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(13,15,18,.45);
  backdrop-filter:blur(4px);
  opacity:0;
  visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
  z-index:60;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ---------- 主内容 ---------- */
.main{
  margin-left:var(--side);
  min-height:100vh;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t-mute);
}
.breadcrumb a{color:var(--t-mute);transition:color 200ms var(--ease);}
.breadcrumb a:hover{color:var(--c-ink);}
.breadcrumb span.sep{color:#C9C6BD;}
.breadcrumb .here{color:var(--c-ink);font-weight:700;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 64px;
  border-bottom:1px solid var(--c-line);
  background:linear-gradient(180deg,#FBFBF8 0%,var(--c-paper) 100%);
}
.cat-hero__bg{
  position:absolute;
  inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.16;
  pointer-events:none;
}
.cat-hero__grid{
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(13,15,18,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(13,15,18,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero h1{
  font-size:clamp(30px,4vw,46px);
  margin:20px 0 0;
  max-width:760px;
}
.cat-hero .lead{
  margin-top:16px;
  max-width:660px;
  font-size:17px;
  color:var(--c-ink-3);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:24px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-ink-3);
}
.tag i{color:var(--c-ok);font-size:11px;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);}
.section-head p{
  margin-top:10px;
  color:var(--t-mute);
  font-size:15px;
  max-width:620px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--t-mute);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--c-lime-deep);
  display:inline-block;
}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.metric{
  padding:28px 26px;
  border-left:1px solid var(--c-line);
}
.metric:first-child{border-left:none;}
.metric b{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(26px,3vw,38px);
  line-height:1.1;
  letter-spacing:-.03em;
}
.metric b .unit{font-size:15px;font-weight:700;color:var(--t-mute);margin-left:4px;}
.metric span{
  display:block;
  margin-top:8px;
  font-size:14px;
  color:var(--t-mute);
}

/* ---------- 图标网格 ---------- */
.icon-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap);
}
.icon-cell{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.icon-cell:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D5CC;}
.icon-cell i{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:12px;
  background:rgba(201,247,58,.28);
  color:var(--c-ink);
  font-size:17px;
}
.icon-cell h3{font-size:19px;margin-top:16px;}
.icon-cell p{margin-top:8px;font-size:15px;color:var(--t-mute);}

/* ---------- 双列对比 ---------- */
.compare{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:var(--gap);
}
.compare-col{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 28px;
  box-shadow:var(--sh-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.compare-col:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.compare-col.dark{
  background:var(--c-ink);
  border-color:var(--c-ink);
  color:#F5F4F0;
}
.compare-col .col-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:700;
  background:rgba(13,15,18,.06);
}
.compare-col.dark .col-label{background:rgba(201,247,58,.16);color:var(--c-lime);}
.compare-col h3{font-size:22px;margin-top:16px;}
.compare-col > p{margin-top:10px;font-size:15px;color:var(--t-mute);}
.compare-col.dark > p{color:var(--t-soft);}
.spec-list{margin-top:22px;border-top:1px solid var(--c-line);}
.compare-col.dark .spec-list{border-top-color:rgba(255,255,255,.12);}
.spec-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:13px 0;
  border-bottom:1px solid var(--c-line);
  font-size:15px;
}
.compare-col.dark .spec-row{border-bottom-color:rgba(255,255,255,.12);}
.spec-row:last-child{border-bottom:none;}
.spec-row .k{color:var(--t-mute);}
.compare-col.dark .spec-row .k{color:var(--t-soft);}
.spec-row .v{
  font-family:var(--font-num);
  font-weight:700;
  font-size:14px;
  text-align:right;
}
.spec-row .v.ok{color:var(--c-ok);}
.compare-col.dark .spec-row .v.ok{color:var(--c-lime);}

/* ---------- 数据表 ---------- */
.table-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;min-width:700px;}
th,td{
  padding:15px 22px;
  text-align:left;
  font-size:15px;
  border-bottom:1px solid var(--c-line);
  white-space:nowrap;
}
th{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--t-mute);
  font-weight:700;
  background:#FAF9F5;
}
tbody tr:last-child td{border-bottom:none;}
tbody tr:hover{background:#FCFCFA;}
td .pill{
  display:inline-block;
  padding:3px 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:700;
  background:rgba(201,247,58,.24);
  color:var(--c-ink-3);
}
td .pill.flame{background:rgba(255,90,43,.14);color:#C53D15;}
td.n{font-family:var(--font-num);font-weight:700;}

/* ---------- 场景卡 ---------- */
.cards-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap);
}
.card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,#EDECE6,#DFDED7);
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 400ms var(--ease);
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  align-self:flex-start;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:700;
  background:rgba(13,15,18,.06);
  color:var(--c-ink-3);
}
.badge.flame{background:rgba(255,90,43,.12);color:#C53D15;}
.card-body h3{font-size:19px;}
.card-body p{font-size:15px;color:var(--t-mute);}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:14px;
  color:var(--t-mute);
}
.card-foot .arrow{color:var(--c-ink);font-weight:700;display:inline-flex;align-items:center;gap:6px;transition:gap 200ms var(--ease);}
.card:hover .card-foot .arrow{gap:10px;}

/* ---------- 深色 CTA 带 ---------- */
.cta-band{
  background:var(--c-ink);
  color:#F5F4F0;
  border-radius:22px;
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(201,247,58,.22),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(23px,2.4vw,32px);max-width:520px;}
.cta-band p{margin-top:12px;color:var(--t-soft);font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px;
  text-align:left;
  font-size:17px;
  font-weight:700;
  color:var(--c-ink);
  transition:background 200ms var(--ease);
}
.faq-q:hover{background:#FAFAF6;}
.faq-q:focus-visible{outline:2px solid var(--c-lime);outline-offset:-2px;}
.faq-q .icon{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--c-line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  color:var(--c-ink-3);
  transition:transform 200ms var(--ease),background 200ms var(--ease),color 200ms var(--ease);
}
.faq-item.open .faq-q .icon{transform:rotate(45deg);background:var(--c-lime);border-color:var(--c-lime);color:var(--c-ink);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms var(--ease);
}
.faq-a p{
  padding:0 26px 22px;
  font-size:15px;
  color:var(--t-mute);
  max-width:820px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:#F5F4F0;
  padding:70px 0 26px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{width:32px;height:32px;font-size:14px;}
.site-footer p{color:var(--t-soft);font-size:14px;line-height:1.8;}
.site-footer h4{
  font-size:14px;
  letter-spacing:.06em;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  color:var(--t-soft);
  font-size:14px;
  transition:color 200ms var(--ease);
}
.footer-links a:hover{color:var(--c-lime);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--t-soft);
  font-size:14px;
}
.footer-contact i{color:var(--c-lime);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:var(--t-soft);
  font-size:13px;
}

/* ---------- 滚动淡入 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--side:76px;}
  .container{padding:0 32px;}
  .sidebar{
    width:var(--side);
    padding:24px 14px 20px;
    align-items:stretch;
  }
  .sidebar:hover{
    width:236px;
    box-shadow:0 24px 60px -20px rgba(13,15,18,.5);
  }
  .brand-name,
  .nav-text,
  .sidebar-note{opacity:0;max-width:0;overflow:hidden;}
  .sidebar:hover .brand-name,
  .sidebar:hover .nav-text,
  .sidebar:hover .sidebar-note{opacity:1;max-width:200px;}
  .sidebar-foot .btn span{display:none;}
  .sidebar:hover .sidebar-foot .btn span{display:inline;}
  .nav-item{justify-content:flex-start;}
  .icon-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(3){border-left:none;}
  .metric:nth-child(3),
  .metric:nth-child(4){border-top:1px solid var(--c-line);}
  .cards-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .topbar{display:flex;}
  .main{margin-left:0;padding-top:60px;}
  .container{padding:0 16px;}
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    padding:26px 18px 22px;
  }
  .sidebar.open{transform:translateX(0);box-shadow:0 24px 60px -20px rgba(13,15,18,.55);}
  .sidebar .brand-name,
  .sidebar .nav-text,
  .sidebar .sidebar-note{opacity:1;max-width:240px;}
  .sidebar-foot .btn span{display:inline;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .cat-hero{padding:34px 0 44px;}
  .cat-hero .lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-left:none;border-top:1px solid var(--c-line);padding:20px 22px;}
  .metric:first-child{border-top:none;}
  .icon-grid{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .cards-3{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a p{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:52px 0 22px;margin-top:64px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:26px;}
  .section-head h2{font-size:22px;}
  .table-card{border-radius:12px;}
  th,td{padding:13px 16px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}