/* roulang page: index */
:root{
  --bg:#0A0B0D;--bg-soft:#101216;--surface:#14171C;--surface-2:#1B1F26;--line:#262B33;
  --text:#ECEEF1;--muted:#98A1AC;--primary:#CBFF3C;--primary-ink:#0A0B0D;--accent:#8A5CFF;--warn:#FF6A3D;
  --r-card:16px;--r-img:20px;--r-btn:12px;--wrap:1240px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.85),0 0 0 1px rgba(255,255,255,.04);
  --shadow-neon:0 0 0 1px rgba(203,255,60,.35),0 10px 34px -12px rgba(203,255,60,.35);
  --ease:cubic-bezier(.22,.8,.28,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background-color:var(--bg);
  background-image:linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:24px 24px;
  color:var(--text);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,dl,dd,dt,figure{margin:0}
ul,ol{padding:0;list-style:none}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;font-variant-numeric:tabular-nums}
h1{font-size:clamp(38px,5.4vw,68px);line-height:1.04;font-weight:900;letter-spacing:-.01em}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.18;font-weight:800;letter-spacing:-.01em}
h3{font-size:clamp(19px,2vw,23px);line-height:1.42;font-weight:700}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 32px}}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:112px 0}}
.dim{color:var(--muted)}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.14em;color:var(--primary);margin-bottom:14px;text-transform:uppercase}
.lede{font-size:16.5px;color:var(--muted);max-width:62ch;margin-top:18px}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,11,13,.92);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,rgba(203,255,60,.55),rgba(138,92,255,.45) 46%,rgba(203,255,60,0) 100%)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#CBFF3C,#8FF05C);color:var(--primary-ink);font-weight:900;font-size:14px;letter-spacing:.02em;box-shadow:0 6px 18px -8px rgba(203,255,60,.85)}
.logo-text{font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:22px;margin-left:16px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-links a{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--muted);transition:color .2s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--primary);box-shadow:0 0 10px rgba(203,255,60,.7);transition:width .2s var(--ease)}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--primary);text-shadow:0 0 12px rgba(203,255,60,.35)}
.nav-links a.active::after{width:100%;animation:breathe 2.4s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1;box-shadow:0 0 10px rgba(203,255,60,.75)}50%{opacity:.55;box-shadow:0 0 4px rgba(203,255,60,.35)}}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-cta{display:none}
@media(min-width:640px){.nav-cta{display:inline-flex}}
.nav-toggle{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:var(--surface);transition:border-color .2s var(--ease),color .2s var(--ease)}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
@media(min-width:1024px){.nav-toggle{display:none}}
.nav-toggle:focus-visible,.icon-btn:focus-visible,.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.nav-drawer{display:none;position:absolute;left:0;right:0;top:68px;background:rgba(10,11,13,.98);border-bottom:1px solid var(--line);padding:16px 20px 24px;max-height:calc(100vh - 68px);overflow-y:auto}
.nav-drawer.open{display:block}
.nav-drawer a{display:block;padding:16px 4px;font-size:16px;color:#cfd5dc;border-bottom:1px solid var(--line)}
.nav-drawer a.active{color:var(--primary)}
.nav-drawer .drawer-cta{margin-top:20px;border-bottom:0}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:700;letter-spacing:.01em;border:1px solid transparent;transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease)}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:0 10px 26px -16px rgba(203,255,60,.9)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:var(--shadow-neon)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.icon-btn{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:var(--surface);transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}

/* 徽章与标签 */
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:12.5px;letter-spacing:.02em;color:var(--text);white-space:nowrap}
.chip-primary{border-color:rgba(203,255,60,.35);color:var(--primary);background:rgba(203,255,60,.08)}
.chip-accent{border-color:rgba(138,92,255,.42);color:#c9b4ff;background:rgba(138,92,255,.1)}
.chip-warn{border-color:rgba(255,106,61,.42);color:#ffb094;background:rgba(255,106,61,.1)}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid rgba(203,255,60,.35);background:rgba(203,255,60,.07);color:var(--primary);font-size:13px;letter-spacing:.06em}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(203,255,60,.9)}

/* Hero */
.hero{position:relative;overflow:hidden;display:flex;align-items:center;min-height:78vh;padding:72px 0 64px}
@media(min-width:1024px){.hero{padding:96px 0 80px}}
.hero-bg{position:absolute;inset:0;background-image:linear-gradient(100deg,rgba(10,11,13,.97) 0%,rgba(10,11,13,.86) 48%,rgba(10,11,13,.62) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
.hero-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(58% 58% at 16% 42%,rgba(203,255,60,.14),transparent 70%),radial-gradient(48% 48% at 84% 16%,rgba(138,92,255,.18),transparent 70%)}
.hero-inner{position:relative;display:grid;gap:44px;align-items:center}
@media(min-width:1024px){.hero-inner{grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:56px}}
.hero h1{margin-top:22px}
.hero-sub{margin-top:20px;font-size:17px;color:#c0c7cf;max-width:34ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust{display:grid;gap:18px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
@media(min-width:640px){.trust{grid-template-columns:repeat(3,minmax(0,1fr))}}
.trust .k{display:block;font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:6px}
.trust .v{font-size:15.5px;font-weight:600}
.trust .chips{display:flex;flex-wrap:wrap;gap:8px}
.hero-visual{position:relative}
.device{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card),0 0 0 1px rgba(203,255,60,.12)}
.device img{width:100%;aspect-ratio:16/11;object-fit:cover}
.device-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--surface-2)}
.device-bar i{width:9px;height:9px;border-radius:50%;background:#333a44;display:block}
.device-bar i:first-child{background:rgba(203,255,60,.7)}
.device-bar span{margin-left:8px;font-size:12px;color:var(--muted)}

/* 价值区 */
.value-grid{display:grid;gap:40px}
@media(min-width:1024px){.value-grid{grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:72px;align-items:start}.value-head{position:sticky;top:104px}}
.value-list{border-top:1px solid var(--line)}
.value-item{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:28px 0;border-bottom:1px solid var(--line);transition:background-color .22s var(--ease)}
.value-item:hover{background:linear-gradient(90deg,rgba(203,255,60,.05),transparent 70%)}
.value-item .num{font-size:13px;letter-spacing:.14em;color:var(--primary);padding-top:6px}
.value-item p{margin-top:10px;color:var(--muted);font-size:15.5px;line-height:1.8}

/* 截图轨道 */
.section-head{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between;margin-bottom:40px}
.rail{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 0 20px;scrollbar-width:none;-ms-overflow-style:none}
.rail::-webkit-scrollbar{display:none}
.shot{flex:0 0 84%;scroll-snap-align:start;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .22s var(--ease),border-color .22s var(--ease)}
@media(min-width:768px){.shot{flex:0 0 46%}}
@media(min-width:1024px){.shot{flex:0 0 31.6%}}
.shot:hover{transform:translateY(-2px);border-color:rgba(203,255,60,.35)}
.shot img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--surface-2)}
.shot figcaption{padding:16px 20px;font-size:14px;color:var(--muted)}
.rail-foot{display:flex;align-items:center;gap:18px;margin-top:22px}
.progress{position:relative;flex:1;height:3px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.progress span{position:absolute;left:0;top:0;bottom:0;width:20%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .25s var(--ease)}
.rail-foot .page{font-size:13px;color:var(--muted);min-width:64px;text-align:right}

/* 系统要求 */
.req-grid{display:grid;gap:24px}
@media(min-width:900px){.req-grid{grid-template-columns:1fr 1fr}}
.req-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-card)}
.req-card.recommend{border-color:rgba(203,255,60,.3);background:linear-gradient(180deg,rgba(203,255,60,.06),rgba(20,23,28,1) 40%)}
.req-card dl{margin-top:20px}
.req-card dl > div{display:grid;grid-template-columns:86px 1fr;gap:16px;padding:13px 0;border-top:1px solid var(--line)}
.req-card dl > div:first-child{border-top:0}
.req-card dt{font-size:12.5px;letter-spacing:.06em;color:var(--muted)}
.req-card dd{font-size:15px}
.note-line{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}

/* 评价墙 */
.review-grid{display:grid;gap:20px}
@media(min-width:640px){.review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.review-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.review-grid > *:nth-child(3n+2){transform:translateY(24px)}}
.review{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);transition:border-color .22s var(--ease)}
.review:hover{border-color:rgba(203,255,60,.32)}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:linear-gradient(135deg,#252a32,#171b21);display:grid;place-items:center;font-size:13px;color:var(--muted)}
.review-name{font-size:15px;font-weight:600}
.stars{color:var(--primary);font-size:12.5px;letter-spacing:2px}
.review p{margin-top:14px;font-size:14.8px;color:#b9c0c8;line-height:1.8}

/* 下载 */
.dl-grid{display:grid;gap:16px}
@media(min-width:640px){.dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.dl-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.dl-card{display:flex;flex-direction:column;gap:14px;padding:24px;border-radius:var(--r-card);border:1px solid var(--line);background:var(--surface);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.dl-card:hover{transform:translateY(-2px);border-color:rgba(203,255,60,.4);box-shadow:var(--shadow-neon)}
.dl-card.primary{background:linear-gradient(180deg,rgba(203,255,60,.13),rgba(20,23,28,1));border-color:rgba(203,255,60,.42)}
.dl-name{font-size:17px;font-weight:700}
.dl-meta{font-size:12.5px;color:var(--muted);letter-spacing:.02em}
.dl-hint{font-size:14px;color:var(--muted);line-height:1.75}
.fold{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);overflow:hidden;margin-top:22px}
.fold summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;font-size:15px;font-weight:600}
.fold summary::-webkit-details-marker{display:none}
.fold summary::after{content:"+";font-size:20px;line-height:1;color:var(--primary);transition:transform .22s var(--ease)}
.fold[open] summary::after{transform:rotate(45deg)}
.fold-body{padding:6px 24px 24px;border-top:1px solid var(--line);color:var(--muted);font-size:14.5px}
.fold-body dl{margin-top:16px;display:grid;gap:10px}
.fold-body dl > div{display:grid;grid-template-columns:110px 1fr;gap:14px;font-size:14px}
.fold-body dt{color:#7f8894}
.fold-body dd{color:#cfd5dc;word-break:break-all}

/* 最新信息 */
.news-grid{display:grid;gap:22px}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.news-card.is-lead{grid-column:span 2;grid-row:span 2}}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .22s var(--ease),border-color .22s var(--ease)}
.news-card:hover{transform:translateY(-2px);border-color:rgba(203,255,60,.4)}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--surface-2)}
.news-card.is-lead .news-thumb img{aspect-ratio:16/9}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:16.5px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card.is-lead .news-title{font-size:20px}
.news-desc{font-size:14.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted)}
.empty{grid-column:1/-1;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);color:var(--muted);text-align:center;padding:32px}
.empty svg{opacity:.6}

/* FAQ */
.faq{display:grid;gap:12px}
.faq details{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);transition:border-color .22s var(--ease)}
.faq details[open]{border-color:rgba(203,255,60,.32)}
.faq summary{position:relative;list-style:none;cursor:pointer;padding:20px 58px 20px 26px;font-size:16px;font-weight:600}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;background:var(--primary)}
.faq summary::after{content:"";position:absolute;right:26px;top:50%;width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-70%) rotate(45deg);transition:transform .24s var(--ease),border-color .24s var(--ease)}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--primary)}
.faq .answer{padding:0 26px 22px;color:var(--muted);font-size:15px;line-height:1.85;background:var(--surface-2)}

/* 底部 CTA */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);padding:72px 0}
@media(min-width:1024px){.cta-band{padding:96px 0}}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(58% 100% at 50% 0%,rgba(203,255,60,.16),transparent 72%)}
.cta-inner{position:relative;display:grid;gap:28px;align-items:center}
@media(min-width:1024px){.cta-inner{grid-template-columns:1fr auto}}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{position:relative;background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0 28px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(203,255,60,.5),rgba(138,92,255,.5),transparent)}
.foot-grid{display:grid;gap:34px}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.foot-brand p{margin-top:16px;font-size:14.5px;color:var(--muted);max-width:34ch}
.foot-title{font-size:13px;letter-spacing:.1em;color:var(--muted);margin-bottom:14px}
.foot-links a{display:block;padding:6px 0;font-size:14.5px;color:#c3c9d1;transition:color .18s var(--ease)}
.foot-links a:hover{color:var(--primary)}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--muted)}
.foot-bottom a:hover{color:var(--primary)}

/* 入场动效 */
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-soft)}
::-webkit-scrollbar-thumb{background:#2b313a;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:#3a424d}

/* roulang page: article */
:root{
  --bg:#0A0B0D;
  --bg-soft:#101216;
  --surface:#14171C;
  --surface-2:#1B1F26;
  --line:#262B33;
  --text:#ECEEF1;
  --muted:#98A1AC;
  --primary:#CBFF3C;
  --primary-ink:#0A0B0D;
  --accent:#8A5CFF;
  --warn:#FF6A3D;
  --radius-card:16px;
  --radius-pic:20px;
  --radius-btn:12px;
  --shadow-1:0 20px 60px -24px rgba(0,0,0,.85);
  --shadow-2:0 0 0 1px rgba(255,255,255,.04);
  --shadow-neon:0 0 0 1px rgba(203,255,60,.35), 0 10px 34px -12px rgba(203,255,60,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a.plain-link{color:var(--primary)}
a.plain-link:hover{text-decoration:underline}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.18}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(203,255,60,.28)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0d0f12}
::-webkit-scrollbar-thumb{background:#252a32;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:#39414c}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media(min-width:1024px){.wrap{padding:0 32px}}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.02em}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,13,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(203,255,60,.55),rgba(138,92,255,.55),transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:ui-monospace,Menlo,monospace;font-weight:700;font-size:14px;
  color:var(--primary-ink);
  background:linear-gradient(135deg,var(--primary),#9ee02a);
  box-shadow:0 6px 20px -8px rgba(203,255,60,.7);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:6px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-links a{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:14.5px;color:var(--muted);
  border-radius:8px;transition:color .2s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;border-radius:2px;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary);text-shadow:0 0 14px rgba(203,255,60,.45)}
.nav-links a.active::after{transform:scaleX(1);animation:navPulse 2.4s ease-in-out infinite}
@keyframes navPulse{0%,100%{opacity:.65}50%{opacity:1}}
.header-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:0 8px 26px -14px rgba(203,255,60,.85)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:var(--shadow-neon)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:13.5px}
.header-cta{display:none}
@media(min-width:768px){.header-cta{display:inline-flex}}
.burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);cursor:pointer;
}
@media(min-width:1024px){.burger{display:none}}
.burger span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.burger span::before{top:-6px}
.burger span::after{top:6px}

.drawer{
  position:fixed;inset:0;z-index:70;background:rgba(8,9,11,.97);
  display:flex;flex-direction:column;padding:24px 20px;
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);font-size:20px;cursor:pointer}
.drawer nav{display:flex;flex-direction:column;margin-top:8px}
.drawer nav a{
  padding:16px 4px;font-size:17px;color:var(--text);border-bottom:1px solid rgba(138,92,255,.22);
}
.drawer nav a.active{color:var(--primary)}
.drawer-foot{margin-top:auto;padding-top:20px}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(10,11,13,.72),rgba(10,11,13,.96)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 18% 10%,rgba(203,255,60,.12),transparent 70%),
             radial-gradient(520px 260px at 88% 90%,rgba(138,92,255,.16),transparent 72%);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding:22px 0 26px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted);transition:color .2s ease-out}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#3b434e}
.crumbs .cur{color:#cfd6de;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60vw}
.article-head h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.2;letter-spacing:-.01em;
  max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;letter-spacing:.02em;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--muted);
}
.badge-accent{border-color:rgba(138,92,255,.45);background:rgba(138,92,255,.12);color:#CBBAFF}
.badge-primary{border-color:rgba(203,255,60,.42);background:rgba(203,255,60,.1);color:var(--primary)}
.badge-warn{border-color:rgba(255,106,61,.42);background:rgba(255,106,61,.1);color:#ffb197}

/* ---------- layout ---------- */
.main-area{padding:56px 0 24px}
@media(min-width:1024px){.main-area{padding:72px 0 24px}}
.content-grid{display:block}
@media(min-width:1024px){
  .content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
}
.article-shell{max-width:760px;margin:0 auto}
@media(min-width:1024px){.article-shell{margin:0}}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:#dfe4ea}
.article-body > * + *{margin-top:20px}
.article-body h2{
  font-size:clamp(22px,2.6vw,30px);
  margin-top:44px;margin-bottom:4px;padding-left:14px;position:relative;color:#fff;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(203,255,60,.25));
}
.article-body h3{font-size:20px;margin-top:32px;color:#fff}
.article-body h4{font-size:17px;margin-top:24px;color:#fff}
.article-body p{margin-top:20px}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(203,255,60,.4)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body ul,.article-body ol{margin-top:18px;padding-left:2px}
.article-body ul li{position:relative;padding-left:20px;margin-top:10px;line-height:1.8}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(203,255,60,.6);
}
.article-body ol{list-style:decimal;padding-left:22px}
.article-body ol li{margin-top:10px;line-height:1.8}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body blockquote{
  margin-top:22px;padding:20px 22px;border-left:3px solid var(--primary);
  background:var(--surface);border-radius:0 var(--radius-card) var(--radius-card) 0;color:#cfd6de;
}
.article-body blockquote p{margin-top:0}
.article-body img{border-radius:var(--radius-pic);margin-top:26px;width:100%}
.article-body figure{margin-top:26px}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body table{
  width:100%;margin-top:24px;border-collapse:collapse;font-size:14.5px;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{background:var(--surface-2);color:#fff;font-weight:700;font-size:13.5px;letter-spacing:.02em}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.016)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body code{
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13.5px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:2px 7px;color:var(--primary);
}
.article-body pre{
  margin-top:22px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:18px;overflow-x:auto;font-size:13.5px;line-height:1.7;
}
.article-body pre code{background:none;border:0;padding:0;color:#dfe4ea}
.article-body hr{margin-top:34px;border:0;border-top:1px solid var(--line)}

/* ---------- sidebar ---------- */
.side-col{display:none}
@media(min-width:1024px){
  .side-col{display:block;position:sticky;top:96px}
}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1),var(--shadow-2);
}
.side-card + .side-card{margin-top:20px}
.side-title{font-size:14px;font-weight:800;letter-spacing:.02em;color:#fff;margin-bottom:12px}
.side-list li{font-size:13.5px;color:var(--muted);padding:9px 0;border-bottom:1px dashed rgba(38,43,51,.9);line-height:1.6}
.side-list li:last-child{border-bottom:0}
.side-kv{display:flex;justify-content:space-between;gap:10px;font-size:13px;padding:9px 0;border-bottom:1px dashed rgba(38,43,51,.9)}
.side-kv:last-child{border-bottom:0}
.side-kv .k{color:var(--muted)}
.side-kv .v{font-family:ui-monospace,Menlo,monospace;color:#dfe4ea}

/* ---------- empty state ---------- */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--radius-card);padding:36px 22px;
}
.empty-icon{
  width:52px;height:52px;border-radius:14px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.empty-state p{color:var(--muted);font-size:15px}

/* ---------- section ---------- */
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,34px);color:#fff}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:640px}

/* ---------- download cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,11,13,.7),rgba(10,11,13,1)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 300px at 50% 0%,rgba(203,255,60,.13),transparent 70%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;padding:64px 0}
@media(min-width:1024px){.cta-inner{padding:88px 0}}
.cta-inner h2{font-size:clamp(24px,3vw,36px);color:#fff}
.cta-inner .lead{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:620px}
.dl-grid{display:grid;gap:14px;margin-top:30px}
@media(min-width:640px){.dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.dl-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.dl-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:6px;
  padding:16px 18px;border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--surface);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.dl-btn:hover{transform:translateY(-2px);border-color:rgba(203,255,60,.45);box-shadow:var(--shadow-neon)}
.dl-btn .p-name{font-size:15px;font-weight:800;color:#fff}
.dl-btn .p-info{font-size:12.5px;color:var(--muted);font-family:ui-monospace,Menlo,monospace}
.dl-btn.is-main{background:var(--primary);border-color:var(--primary);box-shadow:0 14px 34px -18px rgba(203,255,60,.9)}
.dl-btn.is-main .p-name,.dl-btn.is-main .p-info{color:var(--primary-ink)}
.dl-note{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}

/* ---------- related cards ---------- */
.card-grid{display:grid;gap:20px}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  box-shadow:var(--shadow-2);
}
.card:hover{transform:translateY(-2px);border-color:rgba(138,92,255,.5);box-shadow:var(--shadow-1)}
.card-thumb{aspect-ratio:16/10;background:var(--surface-2);overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card:hover .card-thumb img{transform:scale(1.02)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;color:#fff;line-height:1.5}
.card-body p{font-size:14px;color:var(--muted);line-height:1.75}
.card-date{font-size:12.5px;color:#7f8894;font-family:ui-monospace,Menlo,monospace;margin-top:auto}

/* ---------- back links ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- footer ---------- */
.site-footer{
  position:relative;background:var(--bg);border-top:1px solid var(--line);margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(203,255,60,.5),rgba(138,92,255,.5),transparent);
}
.foot-grid{display:grid;gap:34px;padding:56px 0 34px}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:420px}
.foot-brand p + p{margin-top:12px}
.foot-title{font-size:13.5px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column}
.foot-links a{font-size:14px;color:var(--muted);padding:6px 0;transition:color .2s ease-out,transform .2s ease-out}
.foot-links a:hover{color:var(--primary);transform:translateX(2px)}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:18px 0 26px;border-top:1px solid var(--line);font-size:13px;color:#7f8894;
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease-out,transform .6s ease-out}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .nav-links a.active::after{animation:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#0A0B0D;
  --bg-soft:#101216;
  --surface:#14171C;
  --surface-2:#1B1F26;
  --line:#262B33;
  --text:#ECEEF1;
  --muted:#98A1AC;
  --primary:#CBFF3C;
  --primary-ink:#0A0B0D;
  --accent:#8A5CFF;
  --warn:#FF6A3D;
  --radius-card:16px;
  --radius-img:20px;
  --radius-btn:12px;
  --shadow-1:0 20px 60px -24px rgba(0,0,0,.85);
  --ring:0 0 0 1px rgba(255,255,255,.04);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:24px 24px, 24px 24px;
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden}
img{max-width:100%;display:block}
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:800;letter-spacing:-.01em;line-height:1.15}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(10,11,13,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(203,255,60,.55),rgba(138,92,255,.5),transparent);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--text)}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#7fe016);
  color:var(--primary-ink);font-weight:900;font-size:14px;letter-spacing:-.02em;
  box-shadow:0 0 0 1px rgba(203,255,60,.35), 0 8px 22px -10px rgba(203,255,60,.6);
}
.logo-text{white-space:nowrap}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
@media (min-width:1120px){.nav-links{display:flex}}
.nav-links a{
  position:relative;display:inline-block;padding:9px 12px;font-size:14.5px;color:var(--muted);
  border-radius:10px;transition:color .2s ease-out;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary);text-shadow:0 0 12px rgba(203,255,60,.45)}
.nav-links a.active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(203,255,60,.6);animation:breathe 2.4s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.45}}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media (min-width:1120px){.header-actions{margin-left:0}}
.header-actions .btn{display:none}
@media (min-width:640px){.header-actions .btn{display:inline-flex}}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;gap:4px;background:rgba(255,255,255,.02);
  transition:border-color .2s ease-out;
}
.nav-toggle:hover{border-color:rgba(203,255,60,.45)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);margin:2px auto}
@media (min-width:1120px){.nav-toggle{display:none}}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:70;padding:20px;
  background:rgba(10,11,13,.985);
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .3s ease-out,opacity .3s ease-out;
}
.drawer.open{transform:none;opacity:1;pointer-events:auto}
@media (min-width:1120px){.drawer{display:none}}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:20px;line-height:1;color:var(--muted);
}
.drawer-nav{display:flex;flex-direction:column;padding:10px 0 0}
.drawer-nav a{
  padding:15px 4px;font-size:17px;font-weight:600;color:var(--muted);
  border-bottom:1px solid var(--line);transition:color .2s ease-out;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--primary)}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out,filter .2s ease-out;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:0 10px 30px -14px rgba(203,255,60,.6)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(203,255,60,.35),0 14px 34px -12px rgba(203,255,60,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;min-height:40px}

/* ---------- 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;
  font-size:12.5px;letter-spacing:.02em;line-height:1.6;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--muted);
}
.badge-primary{border-color:rgba(203,255,60,.35);color:var(--primary);background:rgba(203,255,60,.08)}
.badge-accent{border-color:rgba(138,92,255,.42);color:#c6b0ff;background:rgba(138,92,255,.1)}
.badge-warn{border-color:rgba(255,106,61,.45);color:#ffa184;background:rgba(255,106,61,.1)}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);margin-bottom:14px;
}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:52px 0 60px;border-bottom:1px solid var(--line)}
@media (min-width:1024px){.page-hero{padding:66px 0 78px}}
.page-hero .hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.3;filter:saturate(.85);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(70% 120% at 12% 0%, rgba(203,255,60,.16), transparent 62%),
    radial-gradient(60% 120% at 92% 20%, rgba(138,92,255,.2), transparent 65%),
    linear-gradient(180deg, rgba(10,11,13,.72), rgba(10,11,13,.96) 78%);
}
.page-hero .wrap{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted);transition:color .2s ease-out}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#4b525b}
.crumbs .cur{color:#7f8894}
.page-hero h1{
  font-size:clamp(32px,5vw,58px);line-height:1.06;letter-spacing:-.015em;
  margin:16px 0 0;font-weight:900;max-width:20ch;
}
.page-hero .hero-sub{margin-top:18px;font-size:clamp(15px,1.6vw,18px);color:var(--muted);max-width:44ch}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
@media (min-width:1024px){.section{padding:104px 0}}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:60ch;margin-bottom:44px}
@media (min-width:1024px){.section-head{margin-bottom:60px}}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.18}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.85;max-width:46em}

/* ---------- 章节流 ---------- */
.chapter{
  display:grid;gap:22px;padding:38px 0;border-top:1px solid var(--line);
}
.chapter:first-child{border-top:0;padding-top:0}
@media (min-width:960px){
  .chapter{grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:64px;padding:58px 0}
}
.chapter-head{display:flex;align-items:flex-start;gap:16px}
@media (min-width:960px){
  .chapter-head{position:sticky;top:104px;align-self:start;display:block}
  .chapter-head h2{margin-top:14px}
}
.chapter-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;letter-spacing:.06em;color:var(--primary);
  border:1px solid rgba(203,255,60,.32);border-radius:999px;padding:3px 11px;
  background:rgba(203,255,60,.06);flex:none;
}
.chapter-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.24}
.chapter-body p{color:#c3c9d1;max-width:42em}
.tick-list{margin-top:22px;display:grid;gap:12px}
@media (min-width:768px){.tick-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 28px}}
.tick-list li{
  position:relative;padding-left:20px;font-size:15.5px;color:var(--muted);line-height:1.75;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(140deg,var(--primary),rgba(138,92,255,.9));
}
.tick-list li .k{color:var(--text);font-weight:600;margin-right:6px}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1),var(--ring);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-2px);border-color:rgba(203,255,60,.3);box-shadow:0 26px 60px -26px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.05)}
.card-pad{padding:26px 24px}
@media (min-width:768px){.card-pad{padding:30px 28px}}
.card h3{font-size:19px;line-height:1.35}
.card p{color:var(--muted);font-size:15px;line-height:1.8;margin-top:12px}
.grid-cards{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.grid-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.card-list{margin-top:18px;display:grid;gap:9px}
.card-list li{font-size:14.5px;color:var(--muted);padding-left:16px;position:relative}
.card-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--primary);opacity:.8}

/* ---------- 图片卡 ---------- */
.shot-card{overflow:hidden;padding:0}
.shot-card .thumb{position:relative;aspect-ratio:16/10;background:var(--surface-2);overflow:hidden}
.shot-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.shot-card:hover .thumb img{transform:scale(1.03)}
.shot-card .thumb .ph{
  position:absolute;inset:0;display:grid;place-items:center;color:#4b525b;font-size:13px;
}
.shot-card .body{padding:22px 22px 26px}
.shot-card .body h3{font-size:18px}
.shot-card .body p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 统计带 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
}
@media (min-width:900px){.stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat{background:var(--surface);padding:26px 22px}
.stat-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:clamp(28px,3.4vw,40px);font-weight:800;color:var(--primary);line-height:1;
}
.stat-label{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 提示块 ---------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  border:1px solid rgba(255,106,61,.28);background:rgba(255,106,61,.06);
  border-radius:var(--radius-card);padding:22px 24px;
}
.notice .dot{
  flex:none;width:10px;height:10px;border-radius:4px;margin-top:9px;
  background:var(--warn);box-shadow:0 0 14px rgba(255,106,61,.6);
}
.notice p{font-size:15px;color:#cfc6c1;line-height:1.8}
.notice strong{color:var(--text)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.acc-item{
  border:1px solid var(--line);border-radius:14px;background:var(--surface);
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.acc-item.open{border-color:rgba(203,255,60,.32)}
.acc-head{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--text);
  min-height:44px;
}
.acc-head .bar{flex:none;width:3px;height:18px;border-radius:2px;background:var(--primary);opacity:.85}
.acc-head .txt{flex:1 1 auto}
.acc-head .ico{
  flex:none;width:22px;height:22px;position:relative;color:var(--muted);
  transition:transform .25s ease-out,color .25s ease-out;
}
.acc-head .ico::before,.acc-head .ico::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
}
.acc-head .ico::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.acc-head .ico::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.acc-item.open .acc-head .ico{transform:rotate(135deg);color:var(--primary)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.acc-panel-inner{
  padding:0 20px 20px;color:var(--muted);font-size:15px;line-height:1.85;
  background:linear-gradient(180deg,rgba(27,31,38,0),rgba(27,31,38,.85));
  border-top:1px solid var(--line);
}
.acc-panel-inner p{padding-top:16px;max-width:60em}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  border:1px solid var(--line);border-radius:24px;background:var(--bg-soft);
  padding:48px 22px;
}
@media (min-width:768px){.cta-band{padding:64px 48px}}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-160px;width:min(720px,120%);height:340px;
  transform:translateX(-50%);
  background:radial-gradient(60% 100% at 50% 50%, rgba(203,255,60,.2), rgba(138,92,255,.12) 55%, transparent 72%);
  pointer-events:none;
}
.cta-band>*{position:relative}
.cta-band h2{font-size:clamp(24px,3vw,36px);line-height:1.2;max-width:22ch;margin:0 auto}
.cta-band p{margin:18px auto 0;color:var(--muted);max-width:46em}
.cta-actions{display:flex;flex-direction:column;gap:12px;margin-top:30px;align-items:stretch}
@media (min-width:640px){.cta-actions{flex-direction:row;justify-content:center;align-items:center}}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg);border-top:1px solid var(--line);margin-top:88px}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(203,255,60,.5),rgba(138,92,255,.45),transparent);
}
.foot-grid{display:grid;gap:34px;grid-template-columns:1fr;padding:60px 0 40px}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:72px 0 48px}}
.foot-brand p{color:var(--muted);font-size:14.5px;line-height:1.8;margin-top:14px;max-width:38ch}
.foot-title{font-size:12.5px;letter-spacing:.1em;color:#7f8894;margin-bottom:14px;text-transform:uppercase}
.foot-links a{display:block;color:var(--muted);font-size:14.5px;padding:6px 0;transition:color .2s ease-out}
.foot-links a:hover{color:var(--primary)}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding:20px 0 34px;font-size:13px;color:#7f8894;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease-out,transform .55s ease-out}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.06s}
.reveal.d2{transition-delay:.12s}
.reveal.d3{transition-delay:.18s}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}
@media (max-width:520px){
  body{font-size:16px}
  .section{padding:56px 0}
  .page-hero{padding:40px 0 48px}
  .card-pad{padding:22px 20px}
  .acc-head{padding:16px 16px;font-size:15.5px}
  .acc-panel-inner{padding:0 16px 18px}
}

/* roulang page: category2 */
:root{
  --bg:#0A0B0D;
  --bg-soft:#101216;
  --surface:#14171C;
  --surface-2:#1B1F26;
  --line:#262B33;
  --text:#ECEEF1;
  --muted:#98A1AC;
  --primary:#CBFF3C;
  --primary-ink:#0A0B0D;
  --accent:#8A5CFF;
  --warn:#FF6A3D;
  --radius:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 20px 60px -24px rgba(0,0,0,.85);
  --shadow-in:inset 0 0 0 1px rgba(255,255,255,.04);
  --glow:0 0 0 1px rgba(203,255,60,.35), 0 10px 34px -12px rgba(203,255,60,.35);
  --glow-accent:0 0 0 1px rgba(138,92,255,.35), 0 10px 34px -14px rgba(138,92,255,.42);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(203,255,60,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0d0f12;}
::-webkit-scrollbar-thumb{background:#2b313a;border-radius:20px;border:2px solid #0d0f12;}
::-webkit-scrollbar-thumb:hover{background:#3a424e;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
@media(min-width:768px){.wrap{padding:0 32px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,13,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg, rgba(203,255,60,.55), rgba(138,92,255,.45), rgba(203,255,60,.12)) 1;
}
.nav-shell{
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:14px;font-weight:700;letter-spacing:.02em;
  color:var(--primary-ink);
  background:linear-gradient(135deg,var(--primary),#8fdc1f 70%);
  box-shadow:0 8px 24px -10px rgba(203,255,60,.75);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text);white-space:nowrap;}
.nav-links{display:none;align-items:center;gap:4px;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:10px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
  border-radius:2px;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.03);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);text-shadow:0 0 14px rgba(203,255,60,.45);animation:breathe 2.4s ease-in-out infinite;}
.nav-links a.active::after{transform:scaleX(1);}
@keyframes breathe{0%,100%{text-shadow:0 0 8px rgba(203,255,60,.28);}50%{text-shadow:0 0 18px rgba(203,255,60,.62);}}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  cursor:pointer;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle span{display:block;height:2px;background:var(--text);border-radius:2px;transition:transform .22s var(--ease),opacity .2s var(--ease);}
.nav-toggle:hover{border-color:rgba(203,255,60,.5);}
.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);}
@media(min-width:1024px){
  .nav-links{display:flex;}
  .nav-toggle{display:none;}
}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;inset:var(--nav-h) 0 0 0;z-index:55;
  background:rgba(10,11,13,.98);
  border-top:1px solid rgba(203,255,60,.14);
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  padding:22px 20px 120px;overflow-y:auto;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:14px 16px;margin-bottom:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  font-size:16px;font-weight:600;color:var(--text);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.drawer a.drawer-link:hover{border-color:rgba(203,255,60,.5);}
.drawer a.drawer-link.active{color:var(--primary);border-color:rgba(203,255,60,.55);box-shadow:var(--glow);}
.drawer a.drawer-link span.dot{width:6px;height:6px;border-radius:50%;background:var(--line);}
.drawer a.drawer-link.active span.dot{background:var(--primary);box-shadow:0 0 10px rgba(203,255,60,.8);}
.drawer-cta{
  position:fixed;left:20px;right:20px;bottom:20px;z-index:56;
  display:none;
}
.drawer.open ~ .drawer-cta{display:block;}
@media(min-width:1024px){.drawer,.drawer-cta{display:none !important;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 22px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .22s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:var(--primary);color:var(--primary-ink);
  box-shadow:0 12px 30px -16px rgba(203,255,60,.85);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:var(--glow);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;border-color:var(--line);color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- section basics ---------- */
section{position:relative;z-index:1;}
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:88px 0;}}
@media(min-width:1024px){.section{padding:112px 0;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);
  background:rgba(203,255,60,.08);
  border:1px solid rgba(203,255,60,.3);
}
.eyebrow.accent{color:#c4aaff;background:rgba(138,92,255,.1);border-color:rgba(138,92,255,.34);}
.section-head{max-width:720px;margin-bottom:36px;}
@media(min-width:1024px){.section-head{margin-bottom:52px;}}
.h2{font-size:30px;line-height:1.2;font-weight:800;letter-spacing:-.01em;margin-top:16px;}
@media(min-width:768px){.h2{font-size:36px;}}
.lead{color:var(--muted);font-size:16px;line-height:1.85;margin-top:14px;max-width:42em;}
.divider-neon{
  height:1px;width:100%;
  background:linear-gradient(90deg,rgba(203,255,60,.5),rgba(138,92,255,.35),transparent);
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:52px 0 56px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(90deg,rgba(10,11,13,.94),rgba(10,11,13,.74) 55%,rgba(10,11,13,.92)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;left:-10%;top:-40%;width:60%;height:180%;z-index:0;
  background:radial-gradient(circle at 30% 40%,rgba(203,255,60,.14),transparent 62%);
  pointer-events:none;
}
.page-hero .wrap{max-width:1180px;padding-top:8px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumbs a{color:var(--muted);transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:#3b424c;}
.crumbs .current{color:var(--muted);}
.page-hero h1{
  margin-top:18px;
  font-size:clamp(32px,5.2vw,58px);
  line-height:1.06;
  font-weight:900;
  letter-spacing:-.015em;
  max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.page-hero .sub{margin-top:16px;max-width:44em;color:var(--muted);font-size:16.5px;line-height:1.85;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--line);background:rgba(255,255,255,.02);color:var(--muted);
}
.chip.primary{color:var(--primary);border-color:rgba(203,255,60,.34);background:rgba(203,255,60,.07);}
.chip.accent{color:#c2a6ff;border-color:rgba(138,92,255,.34);background:rgba(138,92,255,.08);}
.chip.warnc{color:#ffb094;border-color:rgba(255,106,61,.36);background:rgba(255,106,61,.08);}
.chip.mono{font-family:ui-monospace,Menlo,Consolas,monospace;letter-spacing:0;}

/* ---------- shot wall ---------- */
.shot-wall{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:0;}
.shot{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow-1),var(--shadow-in);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.shot:hover{border-color:rgba(203,255,60,.4);transform:translateY(-2px);box-shadow:var(--glow);}
.shot-frame{
  position:relative;border-radius:var(--radius-sm);overflow:hidden;background:var(--surface-2);
  aspect-ratio:16/10;
}
.shot-frame img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.shot:hover .shot-frame img{transform:scale(1.02);}
.shot-num{
  position:absolute;top:10px;left:10px;z-index:2;
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:4px 9px;border-radius:8px;
  color:var(--primary-ink);background:rgba(203,255,60,.92);
}
.shot-cap{
  display:flex;gap:10px;align-items:flex-start;
  padding:16px 8px 6px;
}
.shot-cap .tag{
  flex:none;margin-top:5px;
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(138,92,255,.8);
}
.shot-cap h3{font-size:17px;font-weight:700;line-height:1.5;}
.shot-cap p{font-size:14px;color:var(--muted);line-height:1.75;margin-top:6px;}
.shot-cap .path{
  display:inline-block;margin-top:10px;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:#a5aeb8;
  padding:3px 9px;border-radius:8px;border:1px solid var(--line);background:rgba(255,255,255,.02);
}
@media(min-width:768px){
  .shot-wall{grid-template-columns:1fr 1fr;gap:40px 34px;}
  .shot-wall > .shot:nth-child(even){transform:translateY(56px);}
  .shot-wall > .shot:nth-child(even):hover{transform:translateY(54px);}
  .shot-wall{padding-bottom:56px;}
}

/* ---------- anatomy list ---------- */
.anatomy-grid{display:grid;grid-template-columns:1fr;gap:0;}
.anatomy-item{
  display:grid;grid-template-columns:1fr;gap:12px;
  padding:28px 0;
  border-top:1px solid var(--line);
}
.anatomy-item:last-child{border-bottom:1px solid var(--line);}
.anatomy-num{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--primary);
}
.anatomy-item h3{font-size:21px;font-weight:800;line-height:1.35;}
.anatomy-item p{color:var(--muted);font-size:15.5px;line-height:1.85;margin-top:10px;max-width:40em;}
.anatomy-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
@media(min-width:900px){
  .anatomy-item{grid-template-columns:96px 1fr;gap:28px;padding:34px 0;}
  .anatomy-points{margin-top:16px;}
}

/* ---------- token panel ---------- */
.token-panel{
  display:grid;grid-template-columns:1fr;gap:18px;
}
@media(min-width:900px){.token-panel{grid-template-columns:1.05fr 1fr;gap:24px;}}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-1),var(--shadow-in);
}
.panel h3{font-size:18px;font-weight:800;}
.panel .panel-sub{font-size:13.5px;color:var(--muted);margin-top:8px;line-height:1.75;}
.swatches{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.swatch{
  flex:1 1 120px;min-width:110px;
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px;
  background:var(--surface-2);
}
.swatch .bar{height:34px;border-radius:9px;margin-bottom:10px;border:1px solid rgba(255,255,255,.06);}
.swatch .name{font-size:13px;font-weight:600;}
.swatch .hex{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;color:var(--muted);}
.kv{display:grid;grid-template-columns:1fr;gap:0;margin-top:14px;}
.kv-row{display:grid;grid-template-columns:112px 1fr;gap:14px;padding:13px 0;border-bottom:1px dashed rgba(38,43,51,.9);}
.kv-row:last-child{border-bottom:none;}
.kv-row dt{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;color:var(--muted);}
.kv-row dd{font-size:14.5px;line-height:1.7;}

/* ---------- platform compare ---------- */
.plat-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media(min-width:640px){.plat-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.plat-grid{grid-template-columns:repeat(4,1fr);}}
.plat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;display:flex;flex-direction:column;gap:14px;
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.plat-card:hover{border-color:rgba(138,92,255,.42);transform:translateY(-2px);box-shadow:var(--glow-accent);}
.plat-thumb{border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:16/10;background:var(--surface-2);}
.plat-thumb img{width:100%;height:100%;object-fit:cover;}
.plat-card h3{font-size:17px;font-weight:800;display:flex;align-items:center;gap:8px;}
.plat-card h3 span{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;color:var(--muted);font-weight:600;}
.plat-card p{font-size:14px;color:var(--muted);line-height:1.75;}
.plat-card ul{margin-top:auto;display:flex;flex-direction:column;gap:7px;}
.plat-card ul li{font-size:13.5px;color:#cbd2da;display:flex;gap:8px;align-items:flex-start;line-height:1.65;}
.plat-card ul li::before{content:"";flex:none;margin-top:8px;width:5px;height:5px;border-radius:50%;background:var(--primary);}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .24s var(--ease);
}
.faq-item.open{border-color:rgba(203,255,60,.36);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:16px;font-weight:700;line-height:1.5;
}
.faq-q::before{
  content:"";flex:none;width:3px;height:18px;border-radius:2px;
  background:var(--line);transition:background .24s var(--ease);
}
.faq-item.open .faq-q::before{background:var(--primary);}
.faq-q .ico{
  margin-left:auto;flex:none;width:22px;height:22px;position:relative;
  transition:transform .28s var(--ease);
}
.faq-q .ico::before,.faq-q .ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--muted);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .ico::before{width:12px;height:2px;}
.faq-q .ico::after{width:2px;height:12px;transition:transform .28s var(--ease),opacity .24s var(--ease);}
.faq-item.open .faq-q .ico::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-item.open .faq-q .ico::before{background:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq-a-inner{
  padding:16px 20px 20px 37px;
  background:var(--surface-2);
  font-size:14.8px;color:#c3cad3;line-height:1.85;
  border-top:1px solid var(--line);
}

/* ---------- download ---------- */
.dl-block{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:26px;box-shadow:var(--shadow-1),var(--shadow-in);
  position:relative;overflow:hidden;
}
.dl-block::after{
  content:"";position:absolute;right:-15%;bottom:-60%;width:52%;height:170%;
  background:radial-gradient(circle at 60% 40%,rgba(203,255,60,.13),transparent 62%);
  pointer-events:none;
}
.dl-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:22px;position:relative;z-index:1;}
@media(min-width:640px){.dl-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.dl-grid{grid-template-columns:repeat(4,1fr);}}
.dl-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:6px;
  padding:18px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--surface-2);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.dl-btn:hover{border-color:rgba(203,255,60,.45);transform:translateY(-2px);}
.dl-btn.is-primary{background:var(--primary);border-color:var(--primary);color:var(--primary-ink);}
.dl-btn.is-primary:hover{box-shadow:var(--glow);}
.dl-btn .pname{font-size:16px;font-weight:800;}
.dl-btn .pmeta{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;opacity:.82;}
.dl-note{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;
}
.details-fold{
  margin-top:20px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface-2);overflow:hidden;position:relative;z-index:1;
}
.details-fold summary{
  cursor:pointer;list-style:none;padding:15px 18px;
  font-size:14.5px;font-weight:700;display:flex;align-items:center;gap:10px;
}
.details-fold summary::-webkit-details-marker{display:none;}
.details-fold summary::after{
  content:"＋";margin-left:auto;color:var(--primary);font-weight:700;
}
.details-fold[open] summary::after{content:"－";}
.details-fold .fold-body{padding:4px 18px 18px;border-top:1px solid var(--line);}
.hashes{display:grid;grid-template-columns:1fr;gap:6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:#a8b1bb;}
@media(min-width:768px){.hashes{grid-template-columns:150px 1fr;}}
.changelog{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.changelog li{font-size:14px;color:#c3cad3;display:flex;gap:10px;line-height:1.7;}
.changelog li b{color:var(--primary);font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:600;flex:none;}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media(min-width:768px){.rel-grid{grid-template-columns:repeat(3,1fr);}}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{border-color:rgba(203,255,60,.42);transform:translateY(-2px);box-shadow:var(--glow);}
.rel-card h3{font-size:17px;font-weight:800;}
.rel-card p{font-size:14px;color:var(--muted);line-height:1.75;}
.rel-card .more{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--primary);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:0;
  background:var(--bg);
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(203,255,60,.5),rgba(138,92,255,.4),rgba(203,255,60,.1)) 1;
  padding:56px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media(min-width:768px){.foot-grid{grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px;}}
.foot-brand .logo{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:34em;}
.foot-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:#cfd6de;margin-bottom:14px;text-transform:uppercase;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14px;color:var(--muted);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.foot-links a:hover{color:var(--primary);transform:translateX(2px);}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7f8894;
}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);}
.reveal.in{opacity:1;transform:none;transition:opacity .55s var(--ease),transform .55s var(--ease);}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
    --bg:#0A0B0D;
    --bg-soft:#101216;
    --surface:#14171C;
    --surface-2:#1B1F26;
    --line:#262B33;
    --text:#ECEEF1;
    --muted:#98A1AC;
    --primary:#CBFF3C;
    --primary-ink:#0A0B0D;
    --accent:#8A5CFF;
    --warn:#FF6A3D;
    --radius:16px;
    --radius-sm:12px;
    --radius-lg:20px;
    --shadow:0 20px 60px -24px rgba(0,0,0,.85), 0 0 0 1px rgba(255,255,255,.04);
    --glow:0 0 0 1px rgba(203,255,60,.35), 0 10px 34px -12px rgba(203,255,60,.35);
    --mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background-color:var(--bg);
    background-image:
      linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size:24px 24px;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  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,dl,dd,dt,figure{margin:0}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
  ::selection{background:rgba(203,255,60,.28);color:#fff}
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-track{background:var(--bg)}
  ::-webkit-scrollbar-thumb{background:#2C323B;border-radius:8px;border:2px solid var(--bg)}
  ::-webkit-scrollbar-thumb:hover{background:#3B434E}

  .wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media(min-width:1024px){.wrap{padding:0 32px}}
  .mono{font-family:var(--mono)}

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(10,11,13,.92);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .site-header::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;pointer-events:none;
    background:linear-gradient(90deg,transparent,rgba(203,255,60,.5),rgba(138,92,255,.5),transparent);
  }
  .nav-inner{display:flex;align-items:center;gap:18px;height:68px}
  .logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;flex:none}
  .logo-mark{
    display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
    background:linear-gradient(135deg,#CBFF3C,#8CE02A);
    color:var(--primary-ink);font-family:var(--mono);font-size:14px;font-weight:900;letter-spacing:-.04em;
    box-shadow:0 8px 22px -10px rgba(203,255,60,.8);
  }
  .logo-text{font-size:17px;letter-spacing:-.01em;white-space:nowrap}
  .nav-links{display:none;gap:2px;margin-left:auto}
  .nav-links a{
    position:relative;display:inline-block;padding:10px 12px;font-size:15px;color:var(--muted);
    border-radius:10px;transition:color .2s ease-out;white-space:nowrap;
  }
  .nav-links a::after{
    content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
    background:var(--primary);transform:scaleX(0);transform-origin:left;
    transition:transform .2s ease-out;
  }
  .nav-links a:hover{color:#fff}
  .nav-links a:hover::after{transform:scaleX(1)}
  .nav-links a.active{color:var(--primary);text-shadow:0 0 14px rgba(203,255,60,.45)}
  .nav-links a.active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(203,255,60,.65);animation:breathe 2.4s ease-in-out infinite}
  @keyframes breathe{0%,100%{opacity:.75}50%{opacity:1}}
  .nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
    border:1px solid var(--line);border-radius:12px;transition:border-color .2s ease-out,color .2s ease-out;
  }
  .nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
  .nav-toggle svg{width:20px;height:20px}
  .mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--bg-soft);padding:8px 0 18px}
  .mobile-drawer.open{display:block}
  .mobile-drawer a{
    display:block;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.06);
    color:var(--muted);font-size:15.5px;transition:color .2s ease-out,padding-left .2s ease-out;
  }
  .mobile-drawer a:hover{color:#fff;padding-left:8px}
  .mobile-drawer a.active{color:var(--primary)}
  .mobile-drawer .drawer-cta{margin-top:16px;border-bottom:0}
  @media(min-width:1024px){
    .nav-links{display:flex;align-items:center}
    .nav-actions{margin-left:0}
    .nav-toggle{display:none}
    .mobile-drawer{display:none!important}
  }

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 20px;border-radius:12px;font-size:15px;font-weight:700;
    border:1px solid transparent;
    transition:transform .2s ease-out, box-shadow .2s ease-out, background-color .2s ease-out,
               border-color .2s ease-out, color .2s ease-out, filter .2s ease-out;
  }
  .btn-primary{background:var(--primary);color:var(--primary-ink)}
  .btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 10px 34px -12px rgba(203,255,60,.6)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
  .btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:11px}

  /* ---------- Badges ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
    font-size:12px;letter-spacing:.02em;line-height:1.6;border:1px solid transparent;white-space:nowrap;
  }
  .badge-primary{color:var(--primary);border-color:rgba(203,255,60,.35);background:rgba(203,255,60,.1)}
  .badge-accent{color:#C6AEFF;border-color:rgba(138,92,255,.42);background:rgba(138,92,255,.12)}
  .badge-warn{color:#FFB597;border-color:rgba(255,106,61,.42);background:rgba(255,106,61,.12)}
  .badge-muted{color:var(--muted);border-color:var(--line);background:rgba(255,255,255,.03)}

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;padding:48px 0 56px;
    background:var(--bg-soft);border-bottom:1px solid var(--line);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:
      radial-gradient(620px 320px at 12% -10%, rgba(203,255,60,.15), transparent 70%),
      radial-gradient(560px 300px at 88% 15%, rgba(138,92,255,.17), transparent 72%);
  }
  .page-hero .wrap{position:relative}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
  .breadcrumb a{transition:color .2s ease-out}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{opacity:.45}
  .breadcrumb .cur{color:var(--muted)}
  .hero-title{
    font-size:clamp(30px,4.6vw,52px);line-height:1.08;font-weight:900;letter-spacing:-.01em;
    max-width:820px;
  }
  .hero-title .hl{color:var(--primary)}
  .hero-sub{margin-top:18px;font-size:16.5px;color:var(--muted);max-width:620px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-meta{
    display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;padding-top:20px;
    border-top:1px solid var(--line);font-size:13px;color:var(--muted);font-family:var(--mono);
  }
  @media(min-width:1024px){
    .page-hero{padding:64px 0 72px}
  }

  /* ---------- Section ---------- */
  .section{padding:64px 0}
  @media(min-width:1024px){.section{padding:96px 0}}
  .section-tight{padding:56px 0}
  .section-head{max-width:760px;margin-bottom:36px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
    color:var(--primary);font-family:var(--mono);text-transform:uppercase;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(203,255,60,.7)}
  .section-title{font-size:clamp(24px,3.1vw,38px);line-height:1.2;font-weight:900;letter-spacing:-.01em}
  .section-desc{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:660px}

  /* ---------- Platform chips ---------- */
  .chip-row{display:grid;gap:14px}
  @media(min-width:640px){.chip-row{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.chip-row{grid-template-columns:repeat(4,1fr)}}
  .chip{
    display:flex;flex-direction:column;gap:6px;padding:18px 20px;border-radius:var(--radius);
    border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);
    transition:border-color .2s ease-out, transform .2s ease-out, box-shadow .2s ease-out;
  }
  .chip:hover{border-color:rgba(203,255,60,.4);transform:translateY(-2px);box-shadow:var(--glow)}
  .chip .chip-name{font-size:15.5px;font-weight:800}
  .chip .chip-ver{font-family:var(--mono);font-size:12.5px;color:var(--primary);letter-spacing:.01em}
  .chip .chip-note{font-size:13px;color:var(--muted);line-height:1.7}
  .chip-top{display:flex;align-items:center;justify-content:space-between;gap:10px}

  /* ---------- Spec matrix ---------- */
  .spec-grid{display:grid;gap:22px}
  @media(min-width:768px){.spec-grid{grid-template-columns:repeat(2,1fr)}}
  .spec-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px 24px 10px;box-shadow:var(--shadow);
    transition:border-color .2s ease-out, transform .2s ease-out, box-shadow .2s ease-out;
  }
  .spec-card:hover{border-color:rgba(203,255,60,.32);transform:translateY(-2px);box-shadow:var(--glow)}
  .spec-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
  .spec-head h3{font-size:19px;font-weight:800;letter-spacing:-.01em}
  .spec-list{border-top:1px solid var(--line)}
  .spec-row{
    display:grid;grid-template-columns:112px 1fr;gap:14px;
    padding:11px 0;border-bottom:1px solid rgba(38,43,51,.75);font-size:14.5px;
  }
  .spec-row:last-child{border-bottom:0}
  .spec-row dt{
    font-family:var(--mono);font-size:12.5px;color:var(--muted);letter-spacing:.02em;padding-top:2px;
  }
  .spec-row dd{color:var(--text);line-height:1.7}
  .spec-row dd .rec{color:var(--primary)}
  @media(max-width:520px){
    .spec-row{grid-template-columns:1fr;gap:3px;padding:12px 0}
  }

  /* ---------- Notices ---------- */
  .notice-list{display:grid;gap:16px}
  @media(min-width:768px){.notice-list{grid-template-columns:repeat(3,1fr)}}
  .notice{
    background:var(--surface-2);border:1px solid var(--line);border-left:3px solid var(--warn);
    border-radius:14px;padding:20px 22px;
    transition:transform .2s ease-out, border-color .2s ease-out;
  }
  .notice:hover{transform:translateY(-2px)}
  .notice h3{font-size:16px;font-weight:800;margin:12px 0 8px}
  .notice p{font-size:14.5px;color:var(--muted);line-height:1.8}

  /* ---------- Split media ---------- */
  .split{display:grid;gap:32px;align-items:center}
  @media(min-width:1024px){.split{grid-template-columns:1.02fr .98fr;gap:52px}}
  .media{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
    background:var(--surface-2);box-shadow:var(--shadow);
  }
  .media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--surface-2)}
  .media::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(180deg,rgba(10,11,13,0) 45%,rgba(10,11,13,.72) 100%);
  }
  .media figcaption{
    position:absolute;left:18px;right:18px;bottom:14px;z-index:2;font-size:13px;color:#D8DEE6;
    font-family:var(--mono);
  }
  .checklist{display:grid;gap:12px;margin-top:22px}
  .checklist li{display:flex;gap:12px;font-size:15px;color:var(--muted);line-height:1.75}
  .checklist li::before{
    content:"";flex:none;width:8px;height:8px;margin-top:10px;border-radius:2px;
    background:var(--primary);box-shadow:0 0 10px rgba(203,255,60,.55);
  }
  .checklist li strong{color:var(--text);font-weight:700}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:900px}
  .faq-item{border:1px solid var(--line);border-radius:14px;background:var(--surface);overflow:hidden;transition:border-color .2s ease-out}
  .faq-item:hover{border-color:rgba(203,255,60,.3)}
  .faq-q{
    display:flex;align-items:center;gap:14px;width:100%;text-align:left;
    padding:18px 20px;font-size:16px;font-weight:700;line-height:1.6;
  }
  .faq-q .bar{flex:none;width:3px;height:18px;border-radius:2px;background:var(--primary);box-shadow:0 0 8px rgba(203,255,60,.6)}
  .faq-q .icon{margin-left:auto;flex:none;color:var(--muted);transition:transform .25s ease-out,color .25s ease-out}
  .faq-q .icon svg{width:16px;height:16px;display:block}
  .faq-item.open .faq-q .icon{transform:rotate(45deg);color:var(--primary)}
  .faq-a{
    display:none;padding:0 22px 20px 41px;background:var(--surface-2);
    color:var(--muted);font-size:15px;line-height:1.85;
  }
  .faq-item.open .faq-a{display:block}

  /* ---------- CTA band ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-top:1px solid var(--line);
    background:var(--bg-soft);padding:64px 0;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:radial-gradient(600px 300px at 50% 130%, rgba(203,255,60,.17), transparent 72%),
               radial-gradient(420px 240px at 12% 0%, rgba(138,92,255,.14), transparent 72%);
  }
  .cta-band .wrap{position:relative}
  .cta-inner{display:grid;gap:30px}
  @media(min-width:1024px){.cta-inner{grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center}}
  .cta-title{font-size:clamp(24px,3vw,36px);font-weight:900;line-height:1.22;letter-spacing:-.01em}
  .cta-title .hl{color:var(--primary)}
  .cta-desc{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:520px}
  .dl-grid{display:grid;gap:14px}
  @media(min-width:640px){.dl-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.dl-grid{grid-template-columns:repeat(2,1fr)}}
  .dl-btn{
    display:flex;flex-direction:column;gap:5px;align-items:flex-start;
    padding:16px 18px;border-radius:14px;border:1px solid var(--line);background:var(--surface);
    text-align:left;box-shadow:var(--shadow);
    transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
  }
  .dl-btn:hover{border-color:rgba(203,255,60,.45);transform:translateY(-2px);box-shadow:var(--glow)}
  .dl-btn.primary{background:var(--primary);border-color:var(--primary)}
  .dl-btn.primary .dl-name,.dl-btn.primary .dl-meta{color:var(--primary-ink)}
  .dl-btn.primary:hover{filter:brightness(1.05)}
  .dl-name{font-size:15px;font-weight:800;color:var(--text);display:flex;align-items:center;gap:8px}
  .dl-meta{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.01em}

  /* ---------- Footer ---------- */
  .site-footer{position:relative;background:var(--bg);border-top:1px solid var(--line);padding:56px 0 28px}
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(203,255,60,.5),rgba(138,92,255,.5),transparent);
  }
  .foot-grid{display:grid;gap:32px}
  @media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
  .foot-brand p{color:var(--muted);font-size:14px;line-height:1.85;margin-top:16px;max-width:360px}
  .foot-brand .mono{font-size:13px;color:#7F8894;margin-top:12px}
  .foot-links{display:flex;flex-direction:column;gap:10px}
  .foot-title{font-size:13px;letter-spacing:.08em;color:#fff;font-weight:800;margin-bottom:4px}
  .foot-links a{font-size:14px;color:var(--muted);transition:color .2s ease-out,transform .2s ease-out;width:fit-content}
  .foot-links a:hover{color:var(--primary);transform:translateX(2px)}
  .foot-bottom{
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    font-size:13px;color:#7F8894;
  }

  /* ---------- Reveal ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease-out,transform .6s ease-out}
  .reveal.in{opacity:1;transform:none}
  @media(prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation:none!important;transition:none!important}
    .reveal{opacity:1!important;transform:none!important}
  }

/* roulang page: category4 */
:root{
  --bg:#0A0B0D;
  --bg-soft:#101216;
  --surface:#14171C;
  --surface-2:#1B1F26;
  --line:#262B33;
  --text:#ECEEF1;
  --muted:#98A1AC;
  --primary:#CBFF3C;
  --primary-ink:#0A0B0D;
  --accent:#8A5CFF;
  --warn:#FF6A3D;
  --r-card:16px;
  --r-img:20px;
  --r-btn:12px;
  --sh-card:0 20px 60px -24px rgba(0,0,0,.85);
  --sh-inner:0 0 0 1px rgba(255,255,255,.04);
  --glow:0 0 0 1px rgba(203,255,60,.35), 0 10px 34px -12px rgba(203,255,60,.35);
  --t:220ms cubic-bezier(.22,.61,.36,1);
  --font-mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.032) 1px, transparent 1px);
  background-size:24px 24px;
}
main, header, footer{position:relative;z-index:1}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
h1,h2,h3,h4,p,ul,ol,dl,dd,dt,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(203,255,60,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-soft)}
::-webkit-scrollbar-thumb{background:#2C323B;border-radius:20px;border:2px solid var(--bg-soft)}
::-webkit-scrollbar-thumb:hover{background:#3A424D}

.wrap{max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
.mono{font-family:var(--font-mono);letter-spacing:.01em}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(10,11,13,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg, rgba(203,255,60,0) 0%, rgba(203,255,60,.55) 22%, rgba(138,92,255,.5) 68%, rgba(138,92,255,0) 100%);
  opacity:.75;
  pointer-events:none;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:68px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary) 0%, #9BE029 55%, var(--accent) 140%);
  color:var(--primary-ink);
  font-family:var(--font-mono);
  font-size:14px;font-weight:800;letter-spacing:-.02em;
  box-shadow:0 8px 24px -10px rgba(203,255,60,.65);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text);white-space:nowrap}
.nav-links{display:none}
.site-header .nav-links{align-items:center;gap:2px}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:10px;
  transition:color var(--t);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:6px;
  height:2px;border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary);text-shadow:0 0 12px rgba(203,255,60,.45)}
.nav-links a.active::after{transform:scaleX(1);animation:activePulse 2.4s ease-in-out infinite}
@keyframes activePulse{
  0%,100%{opacity:.75;box-shadow:0 0 0 rgba(203,255,60,0)}
  50%{opacity:1;box-shadow:0 0 12px rgba(203,255,60,.6)}
}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  cursor:pointer;
  transition:border-color var(--t),box-shadow var(--t);
}
.menu-btn:hover{border-color:rgba(203,255,60,.5);box-shadow:var(--glow)}
.menu-btn .bar{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.menu-btn .bar + .bar{margin-top:4px}

@media (min-width:1024px){
  .site-header .nav-links{display:flex}
  .menu-btn{display:none}
}
@media (max-width:1023px){
  .header-actions .btn-get{display:none}
}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:60;
  background:rgba(10,11,13,.98);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  padding:20px;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
}
.drawer[hidden]{display:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer .nav-links{display:flex;flex-direction:column;gap:0;margin-top:6px}
.drawer .nav-links a{
  padding:16px 4px;
  font-size:17px;
  border-radius:0;
  border-bottom:1px solid var(--line);
  color:var(--text);
}
.drawer .nav-links a::after{display:none}
.drawer .nav-links a.active{color:var(--primary);text-shadow:0 0 12px rgba(203,255,60,.4)}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line)}
.close-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  transition:border-color var(--t);
}
.close-btn:hover{border-color:rgba(203,255,60,.5)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:16px;font-weight:700;
  cursor:pointer;
  transition:transform var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t),color var(--t),filter var(--t);
}
.btn-primary{
  background:var(--primary);
  color:var(--primary-ink);
  box-shadow:0 10px 30px -14px rgba(203,255,60,.6);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 14px 38px -12px rgba(203,255,60,.78)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff;box-shadow:var(--glow)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:40px;padding:8px 16px;font-size:14px;border-radius:10px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:12.5px;
  letter-spacing:.02em;
  color:var(--muted);
  white-space:nowrap;
}
.badge-primary{border-color:rgba(203,255,60,.35);background:rgba(203,255,60,.09);color:var(--primary)}
.badge-accent{border-color:rgba(138,92,255,.38);background:rgba(138,92,255,.1);color:#C0A8FF}
.badge-warn{border-color:rgba(255,106,61,.4);background:rgba(255,106,61,.1);color:#FFB094}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 48px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(10,11,13,.86) 0%, rgba(10,11,13,.94) 60%, var(--bg) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-140px;left:-80px;
  width:620px;height:520px;
  pointer-events:none;
  background:radial-gradient(closest-side, rgba(203,255,60,.16), transparent 72%);
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-80px;right:-120px;
  width:560px;height:480px;
  pointer-events:none;
  background:radial-gradient(closest-side, rgba(138,92,255,.18), transparent 72%);
}
.page-hero .wrap{position:relative;z-index:2}
@media (min-width:1024px){
  .page-hero{padding:76px 0 64px}
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--muted);transition:color var(--t)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#4A525C}
.breadcrumb .current{color:var(--text)}
.page-hero h1{
  font-size:clamp(32px,5vw,58px);
  line-height:1.06;
  font-weight:900;
  letter-spacing:-.015em;
  margin:16px 0 0;
  max-width:16em;
}
.page-hero .lead{
  margin-top:18px;
  font-size:17px;
  color:var(--muted);
  max-width:44ch;
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:28px;padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-meta .kv{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.hero-meta .kv b{color:var(--text);font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:60px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:36px}
@media (min-width:1024px){.sec-head{margin-bottom:52px}}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);
  margin-bottom:14px;
}
.sec-title{
  font-size:clamp(26px,3.3vw,38px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.01em;
}
.sec-desc{margin-top:14px;color:var(--muted);font-size:16.5px;max-width:52ch}

.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card), var(--sh-inner);
  transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.card:hover{border-color:rgba(203,255,60,.32);transform:translateY(-2px);box-shadow:0 26px 64px -26px rgba(0,0,0,.9), var(--sh-inner)}

/* 取包前准备 */
.prep-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:640px){.prep-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.prep-grid{grid-template-columns:repeat(3,1fr)}}
.prep-card{padding:26px 24px;display:flex;flex-direction:column;gap:12px}
.prep-ico{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(203,255,60,.3);
  background:rgba(203,255,60,.08);
  color:var(--primary);
  font-family:var(--font-mono);font-size:13px;font-weight:700;
}
.prep-card h3{font-size:19px;font-weight:700;letter-spacing:-.005em}
.prep-card p{color:var(--muted);font-size:15.5px;line-height:1.8}

/* 步骤时间轴 */
.steps{position:relative;max-width:940px}
.step{
  position:relative;
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  padding-bottom:34px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";
  position:absolute;
  left:27px;
  top:60px;
  bottom:0;
  width:2px;
  background:linear-gradient(180deg, rgba(203,255,60,.62), rgba(138,92,255,.4) 55%, rgba(138,92,255,0));
  border-radius:2px;
}
.step:last-child::before{display:none}
.step-num{
  width:56px;height:56px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:16px;
  background:var(--surface-2);
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:16px;font-weight:700;
  color:var(--primary);
  box-shadow:0 0 0 6px rgba(10,11,13,.9);
  position:relative;
  z-index:2;
}
.step-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  transition:border-color var(--t),transform var(--t);
}
.step-body:hover{border-color:rgba(138,92,255,.4);transform:translateY(-2px)}
.step-body h3{font-size:20px;font-weight:700;margin-bottom:8px}
.step-body p{color:var(--muted);font-size:15.5px;line-height:1.8}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
@media (min-width:768px){
  .step{grid-template-columns:88px 1fr;gap:22px;align-items:start}
  .step::before{left:27px;top:64px}
}

/* 平台下载 */
.dl-intro{display:grid;gap:12px;margin-bottom:26px}
.dl-intro li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15.5px;color:var(--muted);
}
.dl-intro li .tick{
  flex-shrink:0;width:20px;height:20px;margin-top:4px;border-radius:6px;
  background:rgba(203,255,60,.12);border:1px solid rgba(203,255,60,.35);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:11px;font-family:var(--font-mono);
}
.plat-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:640px){.plat-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.plat-grid{grid-template-columns:repeat(4,1fr)}}
.plat{
  padding:22px 20px;
  display:flex;flex-direction:column;gap:14px;
}
.plat-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.plat-name{font-size:18px;font-weight:800;letter-spacing:-.005em}
.plat-spec{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);display:grid;gap:5px}
.plat-spec span{display:flex;justify-content:space-between;gap:10px;border-bottom:1px dashed rgba(255,255,255,.07);padding-bottom:4px}
.plat-spec span:last-child{border-bottom:0}
.plat-spec b{color:var(--text);font-weight:600}
.plat .btn{width:100%}

/* 折叠区 */
.acc{
  margin-top:26px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  overflow:hidden;
}
.acc details + details{border-top:1px solid var(--line)}
.acc summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 22px;
  font-size:16px;font-weight:600;
  transition:background-color var(--t),color var(--t);
}
.acc summary::-webkit-details-marker{display:none}
.acc summary:hover{background:var(--surface-2);color:var(--primary)}
.acc summary .chev{
  flex-shrink:0;width:20px;height:20px;color:var(--muted);
  transition:transform var(--t),color var(--t);
}
.acc details[open] summary .chev{transform:rotate(180deg);color:var(--primary)}
.acc-body{
  padding:0 22px 22px;
  color:var(--muted);
  font-size:15.5px;
  background:var(--surface);
}
.acc-body .mono{color:var(--text);font-size:13.5px;word-break:break-all}
.hash-list{display:grid;gap:12px;margin-top:6px}
.hash-row{
  display:grid;gap:6px;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface-2);
}
.hash-row .lbl{font-size:12.5px;color:var(--muted);letter-spacing:.02em}
.hash-row .val{font-family:var(--font-mono);font-size:13px;color:var(--text);word-break:break-all}
.log-list{display:grid;gap:14px;margin-top:6px}
.log-list li{padding-left:16px;position:relative}
.log-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.log-list b{color:var(--text);font-weight:700}

/* 自检清单 */
.check-grid{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:768px){.check-grid{grid-template-columns:repeat(2,1fr)}}
.check-item{
  display:flex;gap:14px;
  padding:20px 22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--surface);
  transition:border-color var(--t);
}
.check-item:hover{border-color:rgba(203,255,60,.3)}
.check-item .no{
  font-family:var(--font-mono);font-size:13px;color:var(--primary);
  flex-shrink:0;padding-top:3px;
}
.check-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.check-item p{color:var(--muted);font-size:15px;line-height:1.78}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  overflow:hidden;
  transition:border-color var(--t);
}
.faq-item:hover{border-color:rgba(138,92,255,.36)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 22px;
  font-size:17px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";
  width:3px;height:20px;border-radius:3px;
  background:var(--primary);
  flex-shrink:0;
}
.faq-item summary .chev{
  margin-left:auto;flex-shrink:0;width:20px;height:20px;color:var(--muted);
  transition:transform var(--t),color var(--t);
}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-body{
  padding:0 22px 22px 39px;
  background:var(--surface-2);
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}
.faq-body strong{color:var(--text);font-weight:700}

/* 相关链接卡 */
.rel-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{overflow:hidden;display:flex;flex-direction:column}
.rel-media{position:relative;aspect-ratio:16/10;background:var(--surface-2);overflow:hidden}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.rel-card:hover .rel-media img{transform:scale(1.03)}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.rel-body h3{font-size:18px;font-weight:700;line-height:1.45}
.rel-body p{color:var(--muted);font-size:15px;line-height:1.78}
.rel-link{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--primary);
  transition:gap var(--t),opacity var(--t);
}
.rel-link:hover{gap:12px;opacity:.9}

/* CTA 带 */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:64px 0;
  border-top:1px solid var(--line);
  background:var(--bg-soft);
}
.cta-band::after{
  content:"";
  position:absolute;
  left:50%;bottom:-220px;
  transform:translateX(-50%);
  width:900px;height:520px;
  pointer-events:none;
  background:radial-gradient(closest-side, rgba(203,255,60,.15), transparent 70%);
}
.cta-band .wrap{position:relative;z-index:2}
.cta-inner{
  display:grid;gap:26px;
  align-items:center;
}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.15fr 1fr;gap:40px}}
.cta-inner h2{
  font-size:clamp(26px,3.2vw,38px);
  font-weight:900;line-height:1.16;letter-spacing:-.01em;
}
.cta-inner p{color:var(--muted);margin-top:14px;max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn{flex:1 1 180px}
@media (min-width:1024px){.cta-actions{justify-content:flex-end}}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg);
  border-top:1px solid var(--line);
  position:relative;
  padding:56px 0 28px;
}
.site-footer::before{
  content:"";
  position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg, rgba(203,255,60,0) 0%, rgba(203,255,60,.5) 25%, rgba(138,92,255,.45) 72%, rgba(138,92,255,0) 100%);
}
.foot-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.foot-brand{display:flex;flex-direction:column;gap:14px}
.foot-brand p{color:var(--muted);font-size:14.5px;line-height:1.85;max-width:42ch}
.foot-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text);margin-bottom:12px;text-transform:uppercase}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{color:var(--muted);font-size:14.5px;transition:color var(--t),transform var(--t)}
.foot-links a:hover{color:var(--primary);transform:translateX(2px)}
.foot-bottom{
  margin-top:40px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  font-size:13px;color:#7F8894;
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 520ms ease-out,transform 520ms ease-out}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .nav-links a.active::after{animation:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}