/* roulang page: index */
:root{
  --bg:#0f1115;
  --bg2:#111419;
  --surface:#1a1e26;
  --panel:#222732;
  --panel-bright:#2b313d;
  --brand:#ff7a1a;
  --brand2:#f6b556;
  --ok:#22c55e;
  --text:#e7eaf0;
  --text-weak:#9aa4b2;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --r-lg:16px;
  --r:12px;
  --r-sm:8px;
  --radius:12px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(circle at 12% -8%, rgba(255,122,26,.11), transparent 28%),
    radial-gradient(circle at 92% 6%, rgba(246,181,86,.05), transparent 22%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","MiSans","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;border:0;background:none;color:inherit;cursor:pointer}
input,textarea{font:inherit}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section-spacing{padding:70px 0}
.section-head{margin-bottom:28px}
.eyebrow-title{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--brand2);
  text-transform:uppercase;padding:6px 12px;border:1px solid rgba(255,122,26,.28);
  border-radius:8px;background:rgba(255,122,26,.08);
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,30px);font-weight:800;line-height:1.3;margin:6px 0 8px;letter-spacing:-.02em}
.section-sub{color:var(--text-weak);max-width:760px;font-size:15px;margin:0}
.text-dim{color:var(--text-weak)}
.text-orange{color:var(--brand)}
.tag-mini{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
  border:1px solid rgba(246,181,86,.28);background:rgba(246,181,86,.08);color:var(--brand2);
}
.tag-gray{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
  border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);color:var(--text-weak);
}
.btn-primary{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:var(--brand);color:#131313;font-weight:700;font-size:15px;
  border-radius:10px;padding:11px 18px;transition:all .2s var(--ease);
  border:1px solid rgba(255,122,26,.7);
  box-shadow:0 2px 0 rgba(0,0,0,.16), 0 8px 20px rgba(255,122,26,.14);
}
.btn-primary:hover{background:#ff8c37;transform:translateY(-1px);box-shadow:0 2px 0 rgba(0,0,0,.16), 0 12px 24px rgba(255,122,26,.2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  color:#e7eaf0;font-weight:600;font-size:14px;border-radius:10px;
  padding:9px 16px;transition:all .2s var(--ease);
}
.btn-secondary:hover{background:rgba(255,255,255,.1);border-color:rgba(255,122,26,.4);color:#fff}
.btn-secondary:active{transform:translateY(1px)}
.btn-ok{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid rgba(34,197,94,.6);color:var(--ok);
  font-weight:600;font-size:14px;border-radius:10px;padding:9px 16px;transition:all .2s var(--ease);
}
.mt-6{margin-top:6px}.mt-10{margin-top:10px}.mt-16{margin-top:16px}.mt-20{margin-top:20px}.mt-24{margin-top:24px}

/* header */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:80;height:64px;
  background:rgba(15,17,21,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav-wrap{height:64px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:32px;height:32px;flex:none;border-radius:9px;
  background:linear-gradient(135deg,#ff8c37,#ff6a00);
  color:#111;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;font-family:inherit;
  box-shadow:0 4px 14px rgba(255,122,26,.25);letter-spacing:-.02em;
}
.brand-text{
  font-weight:800;font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  color:#f3f4f7;letter-spacing:-.01em;
}
.main-nav{margin-left:10px;flex:1;min-width:0}
.main-nav ul{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.main-nav a{
  display:block;padding:7px 13px;border-radius:8px;color:#d7dce4;
  font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .2s,background .2s;position:relative;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.main-nav a.active{color:#fff;background:rgba(255,255,255,.07)}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-right{display:flex;align-items:center;gap:10px}
.cmd-trigger{
  display:flex;align-items:center;gap:8px;width:230px;height:36px;
  padding:0 8px 0 12px;border-radius:9px;color:#9aa4b2;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.11);
  transition:border-color .2s,background .2s,box-shadow .2s;text-align:left;
}
.cmd-trigger:hover{border-color:rgba(255,122,26,.45);background:rgba(255,255,255,.07);color:#c8ced8;box-shadow:0 0 0 3px rgba(255,122,26,.08)}
.cmd-trigger-label{flex:1;font-size:13px;color:#8e97a5;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmd-shortcut{
  flex:none;min-width:25px;text-align:center;
  font-size:11px;line-height:16px;padding:2px 5px;border:1px solid rgba(255,255,255,.16);
  border-radius:5px;background:rgba(255,255,255,.06);color:#aeb5c0;font-family:ui-monospace,Menlo,monospace;
}
.cmd-icon-only{display:none;width:38px;height:38px;border-radius:10px;align-items:center;justify-content:center;color:#c4cad4;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);font-size:15px}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:10px;align-items:center;justify-content:center;
  color:#c4cad4;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);font-size:17px;
}
.menu-toggle:focus-visible,.cmd-trigger:focus-visible,.cmd-icon-only:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
.header-cta{display:inline-flex;align-items:center;white-space:nowrap;gap:6px}
.header-cta i{font-size:14px}
@media(max-width:1080px){
  .cmd-trigger-label{display:none}
  .cmd-shortcut{display:none}
  .cmd-trigger{width:38px;padding:0;justify-content:center;border-radius:10px}
}
@media(max-width:1023px){
  .brand-text{font-size:16px;max-width:210px}
  .main-nav{position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(17,20,25,.985);transform:translateX(105%);transition:transform .3s var(--ease);padding:28px 24px;overflow-y:auto;margin-left:0}
  .site-header.menu-open .main-nav{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:8px}
  .main-nav a{font-size:16px;padding:13px 16px;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06)}
  .main-nav a+ a:before{display:none}
  .main-nav a.active{background:rgba(255,122,26,.12);border-color:rgba(255,122,26,.24)}
  .main-nav a.active::after{display:none}
  .menu-toggle{display:inline-flex}
  .cmd-trigger{display:none}
  .cmd-icon-only{display:inline-flex}
  .header-cta{display:none}
}
.desktop-cmd-wrap{display:inline-flex}

/* command panel */
.cmd-panel{
  position:fixed;top:56px;left:50%;transform:translateX(-50%);
  width:min(620px,calc(100vw - 36px));
  background:#181d27;border:1px solid rgba(255,255,255,.14);
  border-radius:16px;box-shadow:0 24px 80px rgba(0,0,0,.6),0 0 0 1px rgba(255,122,26,.08);
  z-index:120;overflow:hidden;
}
.cmd-panel[hidden]{display:none}
.cmd-box{padding:10px}
.cmd-searchbar{
  display:flex;align-items:center;gap:9px;padding:10px 12px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:11px;
}
.cmd-searchbar i{color:#7e8897;font-size:15px}
.cmd-searchbar input{flex:1;background:none;border:0;color:#f0f2f8;font-size:14px;outline:none;min-width:0}
.cmd-searchbar input::placeholder{color:#737e8e}
.cmd-searchbar kbd{font-family:ui-monospace,Menlo,monospace;font-size:11px;color:#9aa4b2;border:1px solid rgba(255,255,255,.15);padding:1px 5px;border-radius:5px;background:rgba(255,255,255,.05)}
.cmd-result{padding-top:6px}
.cmd-item{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:#dfe3ea;background:transparent;transition:background .15s;font-size:14px;
}
.cmd-item:hover{background:rgba(255,122,26,.12);color:#fff}
.cmd-item i{width:21px;color:var(--brand2);font-size:13px;text-align:center}
.cmd-empty{color:#778291;padding:14px 4px;font-size:13px;text-align:center}

/* hero */
.hero{position:relative;overflow:hidden;padding-top:128px;padding-bottom:44px}
.hero-bg-grid{
  position:absolute;pointer-events:none;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.024) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.024) 1px,transparent 1px);
  background-size:60px 60px;
  -webkit-mask-image:radial-gradient(ellipse at 40% 30%,#000 10%,transparent 72%);
          mask-image:radial-gradient(ellipse at 40% 30%,#000 10%,transparent 72%);
}
.hero-inner{position:relative;z-index:2;align-items:center;gap:40px}
.hero-copy{min-width:0}
.hero-index{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  background:rgba(255,122,26,.09);border:1px solid rgba(255,122,26,.26);
  color:#ffb27a;font-size:13px;font-weight:600;letter-spacing:.03em;margin-bottom:22px;
}
.hero-index i{color:var(--brand2);font-size:13px}
.hero h1{
  margin:0;line-height:1.28;color:#f4f5f9;font-weight:800;
  font-size:clamp(30px,4.2vw,46px);
  letter-spacing:-.025em;
}
.hero h1 .vis-high{background:linear-gradient(90deg,#ffa45b,#f6b556);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
.hero-para{color:#aeb7c4;font-size:16px;line-height:1.8;margin-top:20px;max-width:560px}
.hero-cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:28px}
.hero-stage{position:relative;min-width:0}
.stage-card{
  position:relative;border-radius:20px;overflow:hidden;isolation:isolate;
  border:1px solid rgba(255,255,255,.13);height:100%;min-height:330px;
  background:#151922;box-shadow:0 18px 50px rgba(0,0,0,.35);
}
.stage-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.stage-scrim{position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,17,21,.55) 0%,rgba(15,17,21,.16) 44%,rgba(15,17,21,.78) 100%)}
.stage-content{position:absolute;inset:0;padding:26px;display:flex;flex-direction:column;justify-content:flex-end;z-index:2}
.stage-content .hero-ver{font-size:12px;line-height:1;letter-spacing:.16em;color:#dfeced;text-transform:uppercase;background:rgba(15,17,21,.5);border:1px solid rgba(255,255,255,.24);display:inline-block;width:max-content;padding:7px 12px;border-radius:99px;backdrop-filter:blur(4px)}
.stage-content h3{color:#fff;font-size:21px;font-weight:800;margin:12px 0 0;line-height:1.42}
.stage-content p{color:rgba(255,255,255,.74);margin:6px 0 0;font-size:13px;line-height:1.6}
.stage-tagline{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.stage-tagline span{font-size:12px;color:rgba(255,255,255,.86);background:rgba(15,17,21,.42);border:1px solid rgba(255,255,255,.16);padding:5px 9px;border-radius:7px;backdrop-filter:blur(6px)}
.hero-status{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;padding:14px 2px 0;
  border-top:1px solid rgba(255,255,255,.08);position:relative;z-index:4;align-items:center;
}
.status-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#c3cad4;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);padding:7px 12px;border-radius:999px}
.status-item .dot{width:7px;height:7px;border-radius:99px;background:var(--ok);box-shadow:0 0 0 3px rgba(34,197,94,.18)}
.status-item .dot.warning{background:#d0a84d;box-shadow:0 0 0 3px rgba(208,168,77,.18)}
@media(max-width:767px){
  .hero{padding-top:108px}
  .hero-status{gap:8px}
  .status-item{font-size:12px;padding:6px 10px}
}

/* dir catalog */
.catalog-bg{background:linear-gradient(180deg,rgba(15,17,21,0) 0%,rgba(20,24,32,.55) 12%,rgba(20,24,32,.55) 86%,rgba(15,17,21,0) 100%)}
.dir-card{
  position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;min-height:240px;
  background:#1a1e26;border:1px solid rgba(255,255,255,.1);
  transition:transform .3s var(--ease),border-color .25s,box-shadow .25s;
}
.dir-card:hover{transform:translateY(-3px);border-color:rgba(255,122,26,.55);box-shadow:0 0 0 1px rgba(255,122,26,.28),0 18px 38px rgba(0,0,0,.25)}
.dir-card .dir-media{position:absolute;inset:0;overflow:hidden;border-radius:16px}
.dir-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.dir-card:hover img{transform:scale(1.04)}
.dir-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,17,21,.12) 10%,rgba(15,17,21,.72) 100%)}
.dir-body{position:absolute;left:0;right:0;bottom:0;padding:22px 24px;z-index:2}
.dir-count{position:absolute;right:18px;top:14px;z-index:3;color:#ffd0a8;font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:18px;font-weight:700;background:rgba(15,17,21,.42);padding:4px 10px;border:1px solid rgba(255,255,255,.14);border-radius:7px;backdrop-filter:blur(6px)}
.dir-type{font-size:12px;color:#f6b556;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.dir-body h3{margin:0;color:#fff;font-size:20px;font-weight:800;line-height:1.45}
.dir-body p{margin:6px 0 0;color:rgba(230,233,240,.72);font-size:13px;line-height:1.6;max-width:40em}
.dir-arrow{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:99px;margin-top:14px;background:var(--brand);color:#151515;font-size:13px;transition:transform .2s}
.dir-card:hover .dir-arrow{transform:translateX(5px)}
.dir-card-min{min-height:180px}
.dir-card-min h3{font-size:18px}
@media(max-width:1023px){
  .dir-card,.dir-card-min{min-height:210px}
}

/* featured */
.feature-item{
  display:flex;gap:18px;padding:18px;border-radius:16px;
  background:#171c25;border:1px solid rgba(255,255,255,.08);
  transition:border-color .2s,background .2s;position:relative;
  border-left:3px solid transparent;
}
.feature-item:hover{background:#1d222b;border-color:rgba(255,255,255,.13);border-left-color:var(--brand)}
.feature-star{flex:none;width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:rgba(255,122,26,.1);color:var(--brand2);font-size:16px;border:1px solid rgba(255,122,26,.2)}
.feature-body h3{margin:0;display:flex;align-items:center;gap:10px;font-size:17px;line-height:1.5;color:#f1f3f7}
.feature-body .feature-pin{font-size:10px;padding:3px 6px;border-radius:5px;background:rgba(255,122,26,.2);color:#ffd0a8;font-weight:700;letter-spacing:.04em}
.feature-body p{margin:7px 0 0;color:#a8b2be;font-size:14px;line-height:1.7}
.feature-more{margin-top:12px;font-size:13px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
@media(max-width:767px){
  .feature-item{flex-direction:column}
}

/* cms list */
.cms-panel{
  background:linear-gradient(180deg,#141821,#12161d);
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.post-row{
  display:grid;grid-template-columns:260px 1fr;gap:20px;padding:18px;
  background:#181d27;border:1px solid rgba(255,255,255,.08);border-radius:16px;
  margin-bottom:16px;transition:border-color .2s,background .2s,box-shadow .2s;position:relative;overflow:hidden;
}
.post-row::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--brand);opacity:0;transition:opacity .2s}
.post-row:hover{background:#1d222b;border-color:rgba(255,122,26,.28);box-shadow:0 0 0 1px rgba(255,122,26,.1)}
.post-row:hover::before{opacity:1}
.post-thumb{display:block;position:relative;border-radius:11px;overflow:hidden;background:#101319;border:1px solid rgba(255,255,255,.07)}
.post-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .4s var(--ease)}
.post-row:hover .post-thumb img{transform:scale(1.04)}
.post-body h3{margin:0;font-size:17px;line-height:1.55;color:#eef1f5;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a:hover{color:var(--brand2)}
.post-excerpt{margin:9px 0 0;color:#9aa4b2;font-size:14px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px;font-size:13px;color:#8892a0}
.post-meta .read-more{margin-left:auto;color:var(--brand);font-weight:600;font-size:13px;display:inline-flex;gap:6px;align-items:center}
.post-meta .read-more i{transition:transform .2s}
.post-meta .read-more:hover i{transform:translateX(3px)}
.empty-list{
  background:#1b202a;border:1px dashed rgba(255,255,255,.18);border-radius:16px;
  margin:10px 0;padding:52px 24px;text-align:center;color:#9aa4b2;font-size:14px;
}
.empty-list i{font-size:34px;color:#5a6474;margin-bottom:14px;display:inline-block}
@media(max-width:767px){
  .post-row{grid-template-columns:1fr;gap:14px;padding:14px}
  .post-thumb{height:160px}
  .post-thumb img{height:100%}
}

/* checklist */
.check-bg{background:#161a22;border:1px solid rgba(255,255,255,.08);border-radius:var(--r-lg);padding:30px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 32px;margin:0;padding-left:36px;color:#c7cfda}
.check-list li{padding-left:4px;line-height:1.75}
.check-list li::marker{color:var(--brand);font-weight:800}
@media(max-width:767px){.check-list{grid-template-columns:1fr;padding-left:22px}.check-bg{padding:22px}}

/* related strip */
.rel-track{
  display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 48px)/4);
  gap:16px;overflow-x:auto;padding:6px 2px 18px;scrollbar-width:thin;
  scrollbar-color:rgba(255,122,26,.55) rgba(255,255,255,.06);
}
.rel-track::-webkit-scrollbar{height:8px}
.rel-track::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:8px}
.rel-track::-webkit-scrollbar-thumb{background:rgba(255,122,26,.45);border-radius:8px}
.rel-card{
  display:block;border-radius:14px;overflow:hidden;background:#1b1f28;
  border:1px solid rgba(255,255,255,.09);transition:border-color .2s,box-shadow .2s,transform .25s;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(255,122,26,.48);box-shadow:0 0 0 1px rgba(255,122,26,.2),0 16px 30px rgba(0,0,0,.18)}
.rel-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.rel-card:hover img{transform:scale(1.04)}
.rel-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 56%,rgba(10,12,16,.6))}
.rel-icon{position:absolute;left:12px;bottom:12px;z-index:2;width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;background:rgba(15,17,21,.6);color:var(--brand2);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(8px);font-size:13px}
.rel-body{padding:14px 16px 18px}
.rel-body h3{margin:0;font-size:15px;line-height:1.55;color:#edf0f5;font-weight:700}
.rel-body p{margin:6px 0 0;color:#8e98a6;font-size:13px;line-height:1.6}
@media(max-width:1023px){.rel-track{grid-auto-columns:calc((100% - 32px)/3)}}
@media(max-width:767px){.rel-track{grid-auto-columns:calc((100% - 32px)/2)}}
@media(max-width:560px){.rel-track{grid-auto-columns:calc((100% - 16px)/1.18)}}

/* share */
.share-panel{
  background:linear-gradient(115deg,rgba(255,122,26,.08),rgba(15,17,21,.2)),#171c25;
  border:1px solid rgba(255,122,26,.26);border-radius:var(--r-lg);
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;padding:30px 32px;
}
.share-title{color:#f5f6fa;font-size:17px;font-weight:700}
.share-tip{color:#a4adba;font-size:13px;margin-top:7px}
.share-opts{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.copy-btn{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#151313;
  padding:10px 18px;border-radius:10px;font-weight:700;font-size:14px;box-shadow:0 8px 18px rgba(255,122,26,.2);transition:all .2s var(--ease);
}
.copy-btn:hover{background:#ff8c37}
.copy-btn:active{transform:translateY(1px)}
.socialico{
  width:42px;height:42px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:#292f3a;border:1px solid rgba(255,255,255,.1);color:#dfe4ea;font-size:17px;transition:all .2s var(--ease);
}
.socialico:hover{border-color:rgba(255,122,26,.45);color:#fff;background:#303643;transform:translateY(-1px)}
@media(max-width:767px){.share-panel{padding:22px}}

/* faq */
.faq-list{border-top:1px solid rgba(255,255,255,.09)}
.faq-item{border-bottom:1px solid rgba(255,255,255,.09)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;gap:18px;cursor:pointer;padding:23px 2px;
  color:#eff2f6;font-size:17px;font-weight:600;transition:color .18s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#ffdcc1}
.faq-no{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:13px;color:var(--brand);min-width:28px;font-weight:700}
.faq-item summary .chev{width:34px;height:34px;border-radius:999px;border:1px solid rgba(255,255,255,.14);color:#d1d6e0;display:flex;align-items:center;justify-content:center;transition:transform .24s var(--ease),background .2s;margin-left:auto;flex:none}
.faq-item[open] summary .chev{transform:rotate(45deg);border-color:var(--brand);color:var(--brand);background:rgba(255,122,26,.1)}
.faq-answer{padding:0 50px 24px 40px}
.faq-answer p{margin:0;color:#aeb7c4;font-size:15px;line-height:1.85;max-width:900px}
@media(max-width:767px){.faq-answer{padding:0 4px 20px 12px}.faq-item summary{gap:10px}}

/* footer */
.site-footer{background:#0c0e12;border-top:1px solid rgba(255,255,255,.08);padding-top:44px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:3fr 2fr 1.6fr;gap:40px;padding-bottom:30px}
.footer-brand .brand-text{font-size:21px}
.footer-about{color:#8f98a6;font-size:14px;max-width:400px;margin-top:14px;line-height:1.8}
.footer-nav h4{font-size:15px;color:#fff;margin:2px 0 14px;font-weight:600}
.footer-nav-link{display:block;color:#8f98a6;font-size:14px;padding:4px 0;transition:color .2s,transform .2s}
.footer-nav-link:hover{color:var(--brand2);transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);margin-top:0;padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;color:#6f7987;font-size:13px}
.footer-complain{display:flex;gap:10px;flex-wrap:wrap}
.foot-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;border:1px solid rgba(255,255,255,.09);padding:5px 10px;border-radius:999px;color:#858f9e}
@media(max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media(max-width:620px){.footer-grid{grid-template-columns:1fr}}
@media(max-width:767px){.hero-status .mt-6{display:none}}

/* toast */
.toast-tip{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,12px);z-index:999;
  background:#222732;color:#eef1f7;border:1px solid rgba(255,122,26,.4);
  padding:10px 20px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;
  transition:opacity .2s,transform .2s;box-shadow:0 18px 50px rgba(0,0,0,.45);
}
.toast-tip.show{opacity:1;transform:translate(-50%,0)}
.toast-tip i{color:var(--ok);margin-right:8px}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.footer-bottom .footer-domain{letter-spacing:.01em;color:#778291}

/* roulang page: category1 */
:root{
  --bg:#0f1115;
  --bg-2:#111419;
  --surface:#1a1e26;
  --panel:#222732;
  --brand:#ff7a1a;
  --brand-2:#f6b556;
  --green:#22c55e;
  --text:#e7eaf0;
  --muted:#9aa4b2;
  --line:rgba(255,255,255,.08);
  --radius-lg:16px;
  --radius:12px;
  --radius-sm:9px;
  --glow:0 0 0 1px rgba(255,122,26,.28), 0 10px 18px -14px rgba(0,0,0,.7);
  --font-stack:PingFang SC,HarmonyOS Sans SC,MiSans,Noto Sans SC,Microsoft YaHei,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-stack);line-height:1.7;font-size:15px;padding-top:70px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{list-style:none}
.container{width:min(1200px, calc(100% - 40px));margin-left:auto;margin-right:auto}
.flex{display:flex}
.gap-2{gap:8px}
.mt-16{margin-top:16px}
.pt-16{padding-top:16px}
.section{padding:68px 0 18px}
.section-tight{padding:64px 0 30px}
.bg-panel{background:var(--bg-2)}
.text-muted{color:var(--muted)}
.text-brand{color:var(--brand)}

/* header */
.site-header{position:fixed;top:0;left:0;width:100%;height:70px;z-index:90;background:rgba(15,17,21,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;height:70px;gap:26px}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#ff7a1a,#f6b556);color:#101014;font-weight:800;display:inline-flex;justify-content:center;align-items:center;font-size:19px;flex-shrink:0}
.brand-text{font-weight:700;font-size:15.5px;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.main-nav{margin-left:8px}
.main-nav ul{display:flex;gap:8px;flex-wrap:nowrap}
.main-nav li a{display:block;padding:10px 13px 24px;font-size:14px;color:#e7eaf0;border-radius:8px;position:relative;transition:color .2s;white-space:nowrap}
.main-nav li a:hover{color:var(--brand-2)}
.main-nav li a.active{color:#fff}
.main-nav li a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:15px;height:2px;border-radius:20px;background:var(--brand)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.desktop-cmd-wrap{min-width:220px}
.cmd-trigger{width:100%;display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px 11px;color:var(--muted);font-size:13px;transition:border-color .2s, background .2s}
.cmd-trigger:hover{border-color:rgba(255,122,26,.35);background:var(--panel)}
.cmd-trigger-label{flex:1;text-align:left}
.cmd-shortcut{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.08);border-radius:5px;padding:2px 6px;font-size:11px;color:#9aa4b2}
.cmd-icon-only{display:none;width:40px;height:40px;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:#cfd5de;font-size:15px;font-size:15px}
.menu-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:#cfd5de;font-size:17px}
.header-cta{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--brand);border:1px solid var(--brand);color:#121317;border-radius:10px;font-weight:700;transition:all .2s}
.header-cta:hover{background:#ff8c33;border-color:#ff8c33;transform:translateY(-1px)}
.header-cta:active{transform:translateY(1px)}
a.btn-primary,button.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#15161b;font-weight:700;font-size:14px;border:1px solid var(--brand);border-radius:10px;padding:11px 18px;transition:all .2s}
a.btn-primary:hover,button.btn-primary:hover{background:#ff8c33;border-color:#ff8c33;box-shadow:var(--glow);transform:translateY(-1px)}
a.btn-ghost,button.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:transparent;color:#dfe3e9;font-weight:600;font-size:14px;border:1px solid var(--line);border-radius:10px;padding:11px 18px;transition:all .2s}
a.btn-ghost:hover,button.btn-ghost:hover{border-color:rgba(255,122,26,.4);color:#fff;background:rgba(255,122,26,.05)}
a.btn-ghost:focus-visible,button.btn-ghost:focus-visible,button.btn-primary:focus-visible,a.btn-primary:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* breadcrumb */
.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--brand-2);transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb-sep{opacity:.5}

/* category hero */
.category-hero{position:relative;background-size:cover;background-position:center;min-height:340px;display:flex;align-items:flex-end;overflow:hidden;border-bottom:1px solid var(--line)}
.category-hero .hero-mask{position:absolute;inset:0;background:radial-gradient(ellipse at 65% 20%,rgba(25,29,38,.25),rgba(15,17,21,.92)),linear-gradient(90deg,rgba(15,17,21,.86),rgba(15,17,21,.5) 55%,rgba(15,17,21,.25));z-index:1}
.category-hero .container{position:relative;z-index:2;padding-top:110px;padding-bottom:40px}
.category-hero h1{font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:.01em;line-height:1.22;margin-bottom:14px}
.category-hero .hero-split{color:var(--brand-2)}
.hero-lead{max-width:680px;color:#b9c0ca;font-size:15px;margin-bottom:26px}
.hero-tags{display:flex;align-items:center;gap:0;flex-wrap:wrap;color:#9aa4b2;font-size:13px}
.hero-tag{display:inline-flex;align-items:center;gap:7px;padding:6px 14px}
.hero-tag+.hero-tag{border-left:1px solid rgba(255,255,255,.09)}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(34,197,94,.12)}
.hero-tag .dot.orange{background:var(--brand);box-shadow:0 0 0 3px rgba(255,122,26,.12)}

/* section heading */
.sec-head{margin-bottom:20px}
.sec-head .overline{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;font-weight:600;color:var(--brand);text-transform:uppercase;margin-bottom:8px}
.sec-head .overline::before{content:"";width:16px;height:2px;background:var(--brand);border-radius:10px}
.sec-head h2{font-size:clamp(21px,2.6vw,28px);font-weight:700;line-height:1.3;margin-bottom:8px}
.sec-head p{color:var(--muted);max-width:760px;font-size:14px}

/* intro strip */
.intro-strip{background:var(--bg-2);border-bottom:1px solid var(--line);padding:42px 0}
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.intro-card{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.intro-card i{font-size:20px;color:var(--brand);flex-shrink:0}
.intro-card h3{font-size:15px;font-weight:700;margin-bottom:5px}
.intro-card p{font-size:13px;line-height:1.65;color:var(--muted)}

/* feature cards */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feature-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:22px;transition:border-color .25s,background .25s, box-shadow .25s;position:relative;overflow:hidden}
.feature-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--brand),transparent);opacity:0;transition:opacity .25s}
.feature-card:hover{border-color:rgba(255,122,26,.3);background:#1d222b;box-shadow:var(--glow)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:41px;height:41px;border-radius:10px;background:rgba(255,122,26,.11);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:15px}
.feature-card h3{font-size:15.5px}.feature-card p{color:var(--muted);font-size:13px;line-height:1.65}

/* status section */
.status-section{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0}
.status-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:26px 22px;margin-top:8px}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.status-item{border:1px solid var(--line);border-radius:var(--radius);background:#1c212b;padding:16px}
.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:8px}
.dot-green{background:var(--green);box-shadow:0 0 0 4px rgba(34,197,94,.12)}
.dot-orange{background:var(--brand);box-shadow:0 0 0 4px rgba(255,122,26,.12)}
.dot-gold{background:var(--brand-2);box-shadow:0 0 0 4px rgba(246,181,86,.12)}
.dot-dark{background:#9aa4b2;box-shadow:0 0 0 4px rgba(154,164,178,.12)}
.status-item h4{font-size:14.5px;margin-bottom:6px;display:flex;align-items:center;flex-wrap:wrap}
.status-item p{font-size:12.5px;color:var(--muted);line-height:1.65}

/* steps */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}
.step-block{position:relative;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:22px 18px 24px;transition:border-color .2s,background .2s}
.step-block:hover{border-color:rgba(255,122,26,.35);background:#1d222b}
.step-num{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.05em;margin-bottom:12px;font-variant-numeric:tabular-nums}
.step-num::after{content:"";display:block;width:24px;height:2px;background:rgba(255,122,26,.35);margin-top:8px}
.step-block h3{font-size:15px;font-weight:700;margin-bottom:6px}
.step-block p{font-size:13px;color:var(--muted);line-height:1.7}

/* scenarios */
.scenario-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.scen-item{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:17px}
.scen-item i{color:var(--brand);margin-top:4px;width:18px;text-align:center}
.scen-item span{font-size:14px;line-height:1.6}
.scen-item:hover{border-color:rgba(255,122,26,.3)}

/* faq */
.faq-wrap{max-width:860px;margin-top:16px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:var(--surface);margin-bottom:12px;overflow:hidden;transition:border-color .2s}
.faq-item:hover{border-color:rgba(255,122,26,.25)}
.faq-q{display:flex;align-items:center;gap:14px;padding:18px 20px;cursor:pointer}
.faq-idx{font-size:12px;color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;whitespace:nowrap}
.faq-question{flex:1;background:none;border:none;text-align:left;color:var(--text);font-size:15px;font-weight:600;padding:0;line-height:1.5}
.faq-icon{width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand);transition:transform .2s}
.faq-item.open{border-color:rgba(255,122,26,.35)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;padding:0 20px;transition:max-height .25s ease;color:var(--muted);font-size:14px;line-height:1.7}
.faq-item.open .faq-a{max-height:500px;padding-bottom:18px}

/* cta */
.cta-panel{background:linear-gradient(120deg,#1a1e27,#202532);border:1px solid rgba(255,122,26,.12);border-radius:20px;padding:28px 32px;display:flex;align-items:center;gap:22px;justify-content:space-between;flex-wrap:wrap;margin:70px 0 70px}
.cta-panel h2{font-size:clamp(20px,2.4vw,25px);font-weight:700;margin-bottom:6px}
.cta-panel p{color:var(--muted);font-size:13px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}

/* footer */
.site-footer{background:#0b0d11;border-top:1px solid var(--line);padding:52px 0 22px;margin-top:36px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;border-bottom:1px solid var(--line);padding-bottom:32px}
.footer-brand .brand{margin-bottom:12px}
.footer-about{color:var(--muted);font-size:13px;line-height:1.75;max-width:440px;margin-top:10px}
.footer-grid h4{font-size:14px;font-weight:700;margin-bottom:16px;color:#dfe3ea}
.footer-grid h4 i{color:var(--brand)}
.footer-nav-link{display:block;color:var(--muted);font-size:13.5px;padding:6px 0;transition:color .2s}
.footer-nav-link:hover{color:var(--brand-2)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;color:var(--muted);font-size:12.5px}
.footer-complain{display:flex;gap:8px;flex-wrap:wrap}
.foot-tag{display:inline-flex;gap:6px;align-items:center;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:30px;padding:3px 10px;font-size:12px;color:#9aa4b2}
.footer-domain{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.02em}
.tag-gray{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:30px;padding:5px 12px;font-size:12.5px;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;background:#191e27;border:1px solid rgba(255,255,255,.1);color:#eef1f6;padding:10px 18px;border-radius:10px;font-size:13px;z-index:120;box-shadow:0 18px 40px -18px rgba(0,0,0,.8);transition:all .25s}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}

@media(max-width:1024px){
  .desktop-cmd-wrap{display:none}
  .main-nav{position:absolute;top:70px;left:0;width:100%;background:#14181f;border-bottom:1px solid var(--line);padding:16px 20px;display:none;box-shadow:0 18px 30px -18px rgba(0,0,0,.7)}
  .site-header.nav-open .main-nav{display:flex}
  .main-nav ul{flex-direction:column;gap:4px}
  .main-nav li a{padding:12px 0;display:block}
  .main-nav li a.active::after{display:none}
  .main-nav li a.active{color:var(--brand-2)}
  .menu-toggle{display:inline-flex}
  .cmd-icon-only{display:inline-flex}
  .brand-text{font-size:14px}
  .nav-wrap{gap:10px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .status-grid{grid-template-columns:repeat(2,1fr)}
  .intro-grid{grid-template-columns:1fr}
  .footer-grid{gap:30px}
}
@media(max-width:640px){
  body{padding-top:62px}
  .site-header{height:62px}
  .nav-wrap{height:62px}
  .container{width:calc(100% - 32px)}
  .brand-mark{width:32px;height:32px;font-size:16px;border-radius:8px}
  .header-cta .fa-regular{font-size:15px}
  .category-hero{min-height:320px}
  .category-hero .container{padding-top:86px;padding-bottom:32px}
  .feature-grid{grid-template-columns:1fr;gap:12px}
  .steps-grid{grid-template-columns:1fr;gap:12px}
  .status-grid{grid-template-columns:1fr;gap:12px}
  .scenario-list{grid-template-columns:1fr}
  .intro-grid{grid-template-columns:1fr;gap:12px}
  .hero-tag{font-size:12px;padding:4px 8px}
  .cta-panel{padding:24px 20px;align-items:flex-start}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions a{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-complain{flex-wrap:wrap}
  .menu-toggle,.btn-primary,.btn-ghost{font-size:13px;padding:9px 14px}
  .section{padding-top:48px}
  .status-section,.section-tight{padding-top:42px;padding-bottom:26px}
}

/* roulang page: article */
:root {
      --bg: #0f1115;
      --bg-2: #111419;
      --surface: #1a1e26;
      --surface-hover: #1d222b;
      --panel: #222732;
      --brand: #ff7a1a;
      --brand-gold: #f6b556;
      --success: #22c55e;
      --text: #e7eaf0;
      --muted: #9aa4b2;
      --border: rgba(255, 255, 255, 0.08);
      --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.18);
      --shadow-brand: 0 0 0 1px rgba(255, 122, 26, 0.28), 0 10px 24px rgba(255, 122, 26, 0.08);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background-color: var(--bg);
      color: var(--text);
      font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      font-size: 15px;
      line-height: 1.7;
      padding-top: 64px;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--text);
      text-decoration: none;
      transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    }

    a:hover {
      color: var(--brand);
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input {
      font-family: inherit;
    }

    button {
      cursor: pointer;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .container:not(.nav-wrap) {
      padding-top: 0;
      padding-bottom: 0;
    }

    .site-main {
      min-height: calc(100vh - 500px);
      padding-top: 0;
    }

    h1,
    h2,
    h3,
    h4,
    h5 {
      color: var(--text);
      margin: 0;
    }

    h1 {
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.01em;
    }
    h2 {
      font-size: clamp(21px, 2.4vw, 27px);
      font-weight: 700;
      line-height: 1.35;
    }
    h3 {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.5;
    }

    ::selection {
      background: rgba(255, 122, 26, 0.3);
      color: #fff;
    }

    :focus-visible {
      outline: 2px solid var(--brand);
      outline-offset: 3px;
      border-radius: 4px;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 7px;
      background: linear-gradient(135deg, var(--brand), #ff8f3d);
      border: none;
      color: #17120c;
      font-weight: 700;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 10px;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .btn-primary:hover {
      color: #17120c;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(255, 122, 26, 0.28);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border);
      color: var(--text);
      font-size: 13px;
      font-weight: 600;
      padding: 8px 16px;
      border-radius: 10px;
      transition: 0.2s ease;
      white-space: nowrap;
    }

    .btn-outline:hover {
      border-color: rgba(255, 122, 26, 0.55);
      color: var(--brand);
      background: rgba(255, 122, 26, 0.06);
    }

    .btn-outline.done {
      border-color: rgba(34, 197, 94, 0.55);
      color: var(--success);
    }

    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 60;
      height: 64px;
      background: rgba(15, 17, 21, 0.86);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--text);
      font-weight: 700;
      min-width: 0;
      flex-shrink: 0;
    }

    .brand mark,
    .brand span.brand-text {
      background: none;
    }

    .brand-mark {
      width: 32px;
      height: 32px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--brand), var(--brand-gold));
      border-radius: 9px;
      color: #17120c;
      font-size: 17px;
      font-weight: 800;
      box-shadow: 0 4px 15px rgba(255, 122, 26, 0.24);
    }

    .brand-text {
      font-size: 15px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .main-nav ul {
      list-style: none;
      display: flex;
      align-items: center;
      gap: 5px;
      margin: 0;
      padding: 0;
    }

    .main-nav a {
      color: rgba(231, 234, 240, 0.74);
      font-size: 14px;
      font-weight: 500;
      padding: 7px 14px;
      border-radius: 9px;
      display: inline-block;
      transition: 0.2s ease;
      position: relative;
    }

    .main-nav a:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.06);
    }

    .main-nav a.active {
      color: #fff;
      background: rgba(255, 122, 26, 0.1);
      box-shadow: inset 0 -2px 0 var(--brand), inset 0 0 0 1px rgba(255, 122, 26, 0.18);
    }

    .header-right {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .desktop-cmd-wrap {
      display: inline-flex;
    }

    .cmd-trigger {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      width: 172px;
      padding: 7px 12px;
      background: rgba(255, 255, 255, 0.035);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      color: var(--muted);
      font-size: 13px;
      transition: 0.2s;
    }

    .cmd-trigger:hover {
      border-color: rgba(255, 122, 26, 0.4);
      background: rgba(255, 122, 26, 0.05);
    }

    .cmd-trigger-label {
      flex: 1;
      text-align: left;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .cmd-shortcut {
      border: 1px solid rgba(255, 255, 255, 0.14);
      background: rgba(255, 255, 255, 0.04);
      color: #b6c0cc;
      font-size: 11px;
      padding: 1px 6px;
      border-radius: 6px;
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    }

    .cmd-icon-only {
      display: none;
      width: 38px;
      height: 38px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border);
      background: rgba(255, 255, 255, 0.04);
      border-radius: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .menu-toggle {
      display: none;
      width: 38px;
      height: 38px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border);
      background: rgba(255, 255, 255, 0.04);
      border-radius: 10px;
      color: var(--text);
      font-size: 16px;
    }

    .header-cta {
      margin-left: 2px;
    }

    .tag-gray {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 3px 10px;
      background: rgba(255, 255, 255, 0.045);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 99px;
      color: var(--muted);
      font-size: 12px;
    }

    .article-page {
      background: var(--bg);
    }

    .article-hero {
      position: relative;
      overflow: hidden;
      padding: 52px 0 44px;
      border-bottom: 1px solid var(--border);
      background:
        radial-gradient(circle at 88% 12%, rgba(255, 122, 26, 0.16), transparent 42%),
        linear-gradient(180deg, rgba(15, 17, 21, 0.92), rgba(17, 20, 25, 0.98)),
        url("/assets/images/backpic/back-1.png") center center / cover no-repeat;
    }

    .article-top {
      max-width: 1000px;
      margin: 0 auto;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px;
      font-size: 13px;
      color: var(--muted);
      margin-bottom: 22px;
    }

    .breadcrumb a {
      color: var(--muted);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .breadcrumb a:hover {
      color: var(--brand);
    }

    .breadcrumb .sep {
      color: rgba(255, 255, 255, 0.2);
      font-size: 12px;
    }

    .breadcrumb .current {
      color: #c7ced8;
      max-width: 480px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .cat-badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: rgba(255, 122, 26, 0.12);
      border: 1px solid rgba(255, 122, 26, 0.4);
      color: var(--brand-gold);
      font-size: 12.5px;
      font-weight: 600;
      padding: 3px 11px;
      border-radius: 99px;
      margin-bottom: 16px;
    }

    .article-heading h1 {
      margin-bottom: 18px;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px 18px;
      color: var(--muted);
      font-size: 13px;
    }

    .article-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-meta .meta-dot {
      width: 3px;
      height: 3px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
    }

    .article-body-section {
      padding: 48px 0 36px;
    }

    .article-body {
      max-width: 760px;
      margin: 0 auto;
      padding: 0 24px;
      font-size: 16px;
      line-height: 1.85;
      color: rgba(231, 234, 240, 0.96);
      word-break: break-word;
    }

    .article-body p {
      margin: 0 0 1.6rem;
    }

    .article-body a {
      color: var(--brand);
      text-decoration: underline;
      text-decoration-color: rgba(255, 122, 26, 0.35);
      text-underline-offset: 4px;
      transition: 0.2s;
    }

    .article-body a:hover {
      color: var(--brand-gold);
      text-decoration-color: rgba(246, 181, 86, 0.6);
    }

    .article-body h2 {
      font-size: 21px;
      font-weight: 800;
      padding-left: 14px;
      border-left: 3px solid var(--brand);
      margin: 2.6rem 0 1.1rem;
      line-height: 1.5;
    }

    .article-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 2rem 0 0.8rem;
    }

    .article-body h4 {
      font-size: 15px;
      font-weight: 700;
      margin: 1.5rem 0 0.5rem;
    }

    .article-body ul,
    .article-body ol {
      margin: 0 0 1.7rem;
      padding-left: 1.4rem;
    }

    .article-body ul li,
    .article-body ol li {
      margin-bottom: 0.45rem;
    }

    .article-body ::marker {
      color: var(--brand);
    }

    .article-body blockquote {
      margin: 1.9rem 0;
      padding: 15px 20px 15px 22px;
      background: rgba(255, 255, 255, 0.035);
      border-left: 3px solid var(--brand);
      border-radius: 0 12px 12px 0;
      color: #cbd3dd;
      font-size: 15px;
    }

    .article-body blockquote p {
      margin-bottom: 0;
      color: inherit;
    }

    .article-body img {
      width: auto;
      max-width: 100%;
      height: auto;
      border-radius: var(--radius-lg);
      margin: 1.8rem auto;
      border: 1px solid var(--border);
      background: #fff;
    }

    .article-body pre {
      background: #0c0e12;
      border: 1px solid rgba(255, 255, 255, 0.09);
      border-radius: 12px;
      padding: 15px 18px;
      overflow-x: auto;
      margin: 1.8rem 0;
      font-size: 14px;
      line-height: 1.7;
    }

    .article-body code {
      background: #1e242e;
      padding: 2px 7px;
      border-radius: 5px;
      font-size: 0.9em;
      color: var(--brand-gold);
    }

    .article-body pre code {
      background: transparent;
      padding: 0;
      color: #e7eaf0;
    }

    .article-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.8rem 0;
      font-size: 14px;
      background: var(--surface);
      border-radius: 12px;
      overflow: hidden;
    }

    .article-body th,
    .article-body td {
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 9px 13px;
      text-align: left;
    }

    .article-body th {
      background: rgba(255, 122, 26, 0.08);
      color: var(--brand-gold);
      font-weight: 700;
    }

    .article-body hr {
      margin: 2rem 0;
      border: 0;
      height: 1px;
      background: rgba(255, 255, 255, 0.08);
    }

    .article-return {
      margin-top: 30px;
      padding-top: 22px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: flex-start;
    }

    .return-link {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--text);
      font-size: 14px;
      font-weight: 600;
      padding: 9px 14px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border);
      transition: 0.2s;
    }

    .return-link:hover {
      color: var(--brand);
      border-color: rgba(255, 122, 26, 0.5);
      background: rgba(255, 122, 26, 0.06);
    }

    .related-sec {
      background: var(--bg-2);
      border-top: 1px solid var(--border);
      padding: 56px 0 62px;
    }

    .related-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }

    .related-head h2 {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 24px;
      font-weight: 800;
    }

    .related-head h2 i {
      color: var(--brand);
    }

    .related-note {
      color: var(--muted);
      font-size: 13px;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .rel-card {
      display: flex;
      flex-direction: column;
      background: var(--surface);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: 14px;
      overflow: hidden;
      transition: 0.22s ease;
      min-width: 0;
    }

    .rel-card:hover {
      border-color: rgba(255, 122, 26, 0.4);
      background: var(--surface-hover);
      transform: translateY(-3px);
      box-shadow: var(--shadow-brand);
    }

    .rel-thumb {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #0b0d0f;
      display: block;
    }

    .rel-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }

    .rel-card:hover .rel-thumb img {
      transform: scale(1.04);
    }

    .rel-body {
      padding: 13px 15px 15px;
    }

    .rel-label {
      display: inline-block;
      color: var(--brand);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.03em;
      background: rgba(255, 122, 26, 0.1);
      padding: 2px 8px;
      border-radius: 5px;
      margin-bottom: 8px;
      text-transform: uppercase;
    }

    .rel-name {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      line-height: 1.45;
      display: block;
      margin-bottom: 7px;
      transition: color 0.2s;
    }

    .rel-desc {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .save-cta {
      padding: 38px 0 40px;
      background: var(--bg);
    }

    .save-box {
      background:
        linear-gradient(130deg, rgba(255, 122, 26, 0.06), transparent 40%),
        var(--surface);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 22px 24px;
    }

    .save-left {
      min-width: 230px;
    }

    .save-title {
      display: flex;
      align-items: center;
      gap: 9px;
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 3px;
    }

    .save-title i {
      color: var(--brand);
    }

    .save-left p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
    }

    .save-actions {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }

    .share-group {
      display: inline-flex;
      align-items: center;
      gap: 2px;
      background: rgba(255, 255, 255, 0.035);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 2px;
    }

    .share-action {
      width: 38px;
      height: 38px;
      border: none;
      background: transparent;
      border-radius: 8px;
      color: var(--muted);
      font-size: 15px;
      transition: 0.2s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .share-action:hover {
      color: var(--brand);
      background: rgba(255, 122, 26, 0.09);
    }

    .empty-article {
      display: flex;
      align-items: center;
      min-height: calc(100vh - 64px);
      background: var(--bg);
    }

    .empty-box {
      max-width: 600px;
      margin: 0 auto;
      text-align: center;
      padding: 70px 28px;
    }

    .empty-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 64px;
      height: 64px;
      background: rgba(255, 122, 26, 0.08);
      border: 1px solid rgba(255, 122, 26, 0.22);
      color: var(--brand);
      border-radius: 20px;
      font-size: 28px;
      margin-bottom: 18px;
    }

    .empty-box h1 {
      margin-bottom: 10px;
    }

    .empty-box p {
      color: var(--muted);
      margin-bottom: 24px;
      font-size: 15px;
    }

    .toast {
      position: fixed;
      left: 50%;
      bottom: 30px;
      transform: translateX(-50%) translateY(10px);
      background: #1d222b;
      color: #e7eaf0;
      font-size: 13px;
      padding: 10px 18px;
      border-radius: 10px;
      border: 1px solid rgba(255, 122, 26, 0.4);
      box-shadow: var(--shadow-soft);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.22s ease, transform 0.22s ease;
      z-index: 99;
    }

    .toast.show {
      opacity: 1;
      transform: translateX(-50%) translateY(0);
    }

    .site-footer {
      background: var(--bg-2);
      border-top: 1px solid var(--border);
      padding: 58px 0 26px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.7fr 1fr 1fr;
      gap: 34px;
    }

    .footer-brand .brand {
      margin-bottom: 14px;
    }

    .footer-brand .brand-text {
      font-size: 16px;
    }

    .footer-about {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.85;
      margin: 10px 0 0;
      max-width: 440px;
    }

    .site-footer h4 {
      display: flex;
      align-items: center;
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      margin: 14px 0 12px;
    }

    .footer-nav-link {
      display: block;
      color: var(--muted);
      font-size: 13px;
      padding: 5px 0;
      transition: 0.2s;
    }

    .footer-nav-link:hover {
      color: var(--brand);
      padding-left: 4px;
    }

    .footer-bottom {
      margin-top: 44px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 10px 20px;
      color: #7d8693;
      font-size: 12px;
    }

    .footer-complain {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .foot-tag {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      color: #76808e;
      font-size: 12px;
    }

    .footer-domain {
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      padding: 2px 7px;
      border: 1px solid rgba(255, 255, 255, 0.09);
      border-radius: 6px;
      background: rgba(255, 255, 255, 0.025);
    }

    @media (max-width: 1024px) {
      .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(17, 20, 25, 0.98);
        border-bottom: 1px solid var(--border);
        padding: 10px 16px 14px;
        flex-direction: column;
      }

      .main-nav.open {
        display: flex;
      }

      .main-nav ul {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
      }

      .main-nav a {
        display: block;
        padding: 12px 14px;
        font-size: 15px;
      }

      .desktop-cmd-wrap {
        display: none;
      }

      .cmd-icon-only {
        display: inline-flex;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
      }
    }

    @media (max-width: 767px) {
      .brand-text {
        max-width: 130px;
        font-size: 13px;
      }

      .brand-mark {
        width: 28px;
        height: 28px;
        font-size: 15px;
      }

      .header-cta {
        display: none;
      }

      .article-hero {
        padding: 34px 0 30px;
      }

      .article-meta {
        gap: 6px 12px;
      }

      .article-body {
        padding: 0 20px;
      }

      .related-grid {
        grid-template-columns: 1fr;
      }

      .related-head {
        align-items: flex-start;
      }

      .save-box {
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
      }

      .save-actions {
        flex-wrap: wrap;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .nav-wrap {
        gap: 8px;
        padding-left: 14px;
        padding-right: 14px;
      }

      .brand-text {
        font-size: 12px;
        max-width: 96px;
      }

      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .article-body {
        padding-left: 18px;
        padding-right: 18px;
      }

      .empty-box {
        padding: 50px 18px;
      }

      .save-actions,
      .share-group {
        width: 100%;
      }

      .share-group {
        justify-content: center;
        margin-top: 2px;
      }

      .share-action {
        flex: 1;
      }
    }

/* roulang page: category2 */
:root {
    --bg: #0f1115;
    --bg-soft: #111419;
    --surface: #1a1e26;
    --panel: #222732;
    --brand: #ff7a1a;
    --brand-2: #f6b556;
    --ok: #22c55e;
    --text: #e7eaf0;
    --muted: #9aa4b2;
    --line: rgba(255, 255, 255, .08);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 9px;
    --shadow-glow: 0 0 0 1px rgba(255, 122, 26, .28), 0 8px 26px rgba(0, 0, 0, .32);
    --font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background:
      radial-gradient(1000px 480px at 80% -120px, rgba(255, 122, 26, .055), transparent 62%),
      var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  img {
    max-width: 100%;
    display: block;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    font-family: inherit;
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
    border-radius: 6px;
  }

  .container {
    width: min(1200px, 100%) !important;
    margin-inline: auto !important;
    padding-inline: 24px !important;
  }

  @media (max-width: 640px) {
    .container {
      padding-inline: 20px !important;
    }
  }

  /* ========= Header ========= */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    height: 64px;
    background: rgba(15, 17, 21, .86);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }

  .nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 14px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    border-radius: 10px;
    transition: opacity .2s;
  }

  .brand:hover {
    opacity: .86;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    font-size: 16px;
    font-weight: 800;
    color: #111;
    box-shadow: 0 2px 14px rgba(255, 122, 26, .22);
  }

  .brand-text {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: .4px;
    white-space: nowrap;
    color: var(--text);
  }

  .main-nav {
    display: block;
  }

  .main-nav ul {
    display: flex;
    align-items: center;
    gap: 26px;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .main-nav a {
    position: relative;
    padding: 10px 2px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(231, 234, 240, .82);
    transition: color .2s, background .2s;
    border-radius: 6px;
  }

  .main-nav a:hover {
    color: #fff;
  }

  .main-nav a.active {
    color: #fff;
  }

  .main-nav a.active::after {
    content: "";
    position: absolute;
    left: 2px;
    right: 2px;
    bottom: 4px;
    height: 2px;
    background: var(--brand);
    border-radius: 4px;
  }

  .header-right {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .desktop-cmd-wrap {
    display: block;
  }

  .cmd-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    width: 184px;
    height: 34px;
    padding: 0 10px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 9px;
    color: var(--muted);
    cursor: pointer;
    transition: border-color .2s, background .2s;
  }

  .cmd-trigger:hover {
    border-color: rgba(255, 122, 26, .42);
    background: #20242e;
  }

  .cmd-trigger-label {
    flex: 1;
    text-align: left;
    font-size: 12px;
    color: #7f8a9a;
  }

  .cmd-shortcut {
    font-size: 10px;
    color: #7f8a9a;
    background: rgba(255, 255, 255, .06);
    border-radius: 5px;
    padding: 2px 5px;
    letter-spacing: .4px;
  }

  .cmd-icon-only {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 9px;
    color: var(--muted);
    cursor: pointer;
    transition: border-color .2s, color .2s;
  }

  .cmd-icon-only:hover {
    border-color: rgba(255, 122, 26, .4);
    color: var(--brand);
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    background: var(--brand);
    color: #131313;
    border: 1px solid transparent;
    border-radius: 9px;
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
    transition: background .2s, transform .2s, box-shadow .2s;
  }

  .btn-primary:hover {
    background: #ff8b36;
    transform: translateY(-1px);
    box-shadow: 0 6px 22px rgba(255, 122, 26, .22);
  }

  .btn-primary:active {
    transform: translateY(0);
    box-shadow: none;
  }

  .menu-toggle {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 9px;
    color: var(--text);
    cursor: pointer;
    font-size: 14px;
    transition: border-color .2s, color .2s;
  }

  .menu-toggle:hover {
    border-color: rgba(255, 122, 26, .4);
    color: var(--brand);
  }

  /* ========= 搜索面板 ========= */
  .cmd-overlay {
    position: fixed;
    inset: 0;
    background: rgba(3, 5, 8, .74);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: opacity .18s ease, visibility .18s ease;
  }

  .cmd-overlay.show {
    opacity: 1;
    visibility: visible;
  }

  .cmd-panel {
    position: fixed;
    top: 72px;
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    z-index: 95;
    width: min(660px, calc(100% - 32px));
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .48);
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s, transform .2s, visibility .2s;
    overflow: hidden;
  }

  .cmd-panel.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }

  .cmd-panel-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
  }

  .cmd-panel-head input {
    flex: 1;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
    font-size: 15px;
  }

  .cmd-panel-head input::placeholder {
    color: #7f8a9a;
  }

  .cmd-esc {
    font-size: 10px;
    padding: 3px 7px;
    border-radius: 5px;
    background: rgba(255, 255, 255, .07);
    color: #8f99aa;
  }

  .cmd-panel-body {
    padding: 12px;
  }

  .cmd-category {
    padding: 8px 10px 6px;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .4px;
  }

  .cmd-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 10px;
    font-size: 14px;
    color: var(--text);
    transition: background .16s, color .16s;
  }

  .cmd-item:hover {
    background: rgba(255, 122, 26, .1);
    color: var(--brand-2);
  }

  .cmd-item i {
    width: 20px;
    text-align: center;
    color: var(--brand);
  }

  /* ========= Hero ========= */
  .page-hero {
    position: relative;
    overflow: hidden;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
  }

  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(620px 300px at 13% 18%, rgba(255, 122, 26, .1), transparent 66%),
      linear-gradient(90deg, rgba(15, 17, 21, .92) 0%, rgba(15, 17, 21, .55) 100%);
    pointer-events: none;
    z-index: 1;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url("/assets/images/backpic/back-2.png");
    background-size: cover;
    background-position: center;
    opacity: .32;
    filter: saturate(.72);
    z-index: 0;
  }

  .page-hero .hero-content {
    position: relative;
    z-index: 2;
    padding: 68px 0 58px;
  }

  .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    background: rgba(255, 122, 26, .12);
    border: 1px solid rgba(255, 122, 26, .22);
    border-radius: 999px;
    color: var(--brand-2);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .6px;
  }

  .page-hero h1 {
    max-width: 760px;
    margin: 18px 0 14px;
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: .4px;
    color: #fff;
  }

  .hero-desc {
    max-width: 640px;
    margin: 0;
    color: rgba(231, 234, 240, .72);
    font-size: 16px;
    line-height: 1.78;
  }

  .hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
  }

  .meta-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 11px;
    background: rgba(26, 30, 38, .7);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 12px;
    color: #aeb8c6;
  }

  .meta-chip .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ok);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, .12);
  }

  .meta-chip .dot-warn {
    background: var(--brand);
    box-shadow: 0 0 0 3px rgba(255, 122, 26, .14);
  }

  /* ========= Section ========= */
  .section {
    padding: 58px 0;
  }

  .section-alt {
    background:
      radial-gradient(800px 380px at 92% 8%, rgba(255, 122, 26, .05), transparent 58%),
      #101319;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .section-head {
    max-width: 860px;
    margin-bottom: 30px;
  }

  .section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .8px;
    text-transform: uppercase;
  }

  .eyebrow .line {
    width: 22px;
    height: 2px;
    background: linear-gradient(90deg, var(--brand), rgba(255, 122, 26, .0));
    border-radius: 2px;
  }

  .section-head h2 {
    margin: 12px 0 8px;
    font-size: clamp(23px, 3vw, 30px);
    font-weight: 700;
    color: #fff;
    letter-spacing: .3px;
  }

  .section-lead {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.7;
    max-width: 680px;
  }

  .section-head.center .section-lead {
    margin-left: auto;
    margin-right: auto;
  }

  /* ========= 快速路径 ========= */
  .path-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .path-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 22px 20px 20px;
    overflow: hidden;
    min-height: 168px;
    transition: border-color .22s, background .22s, transform .22s, box-shadow .22s;
  }

  .path-card:hover {
    border-color: rgba(255, 122, 26, .4);
    background: #1d222b;
    transform: translateY(-3px);
    box-shadow: 0 0 0 1px rgba(255, 122, 26, .16), 0 14px 34px rgba(0, 0, 0, .26);
  }

  .path-card .card-no {
    position: absolute;
    top: 8px;
    right: 14px;
    font-size: 64px;
    line-height: 1;
    font-weight: 800;
    background: linear-gradient(180deg, rgba(255, 122, 26, .16), rgba(255, 122, 26, .02));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    pointer-events: none;
  }

  .icon-square {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    background: rgba(255, 122, 26, .12);
    color: var(--brand);
    font-size: 16px;
    margin-bottom: 14px;
  }

  .path-card h3 {
    margin: 0 0 6px;
    font-size: 17px;
    font-weight: 700;
    color: #f2f4f7;
  }

  .path-card p {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.65;
    color: var(--muted);
  }

  /* ========= 时间线 ========= */
  .timeline-section {
    background:
      linear-gradient(180deg, rgba(15, 17, 21, .0), rgba(255, 122, 26, .02)),
      var(--bg);
  }

  .timeline-wrap {
    position: relative;
    max-width: 1000px;
    margin-top: 24px;
  }

  .timeline-wrap::before {
    content: "";
    position: absolute;
    left: 51px;
    top: 10px;
    bottom: 28px;
    width: 2px;
    background: linear-gradient(180deg, rgba(255, 122, 26, .8), rgba(255, 255, 255, .04));
    border-radius: 2px;
  }

  .tl-row {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 22px;
    padding-bottom: 26px;
    position: relative;
  }

  .tl-axis {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 8px;
  }

  .tl-node {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg);
    border: 3px solid var(--brand);
    box-shadow: 0 0 0 5px rgba(255, 122, 26, .12);
    z-index: 1;
  }

  .tl-no {
    margin-top: 10px;
    font-size: 13px;
    font-weight: 700;
    color: var(--brand-2);
    font-variant-numeric: tabular-nums;
  }

  .tl-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-left: 3px solid var(--brand);
    border-radius: 14px;
    padding: 20px 22px;
    transition: background .2s, transform .2s, box-shadow .2s;
  }

  .tl-card:hover {
    background: #1d222b;
    transform: translateY(-2px);
    box-shadow: 0 0 0 1px rgba(255, 122, 26, .12), 0 12px 30px rgba(0, 0, 0, .24);
  }

  .tl-tag {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--brand-2);
    background: rgba(255, 122, 26, .1);
    border: 1px solid rgba(255, 122, 26, .18);
    border-radius: 6px;
    padding: 3px 8px;
    letter-spacing: .4px;
  }

  .tl-card h3 {
    margin: 10px 0 4px;
    font-size: 18px;
    font-weight: 700;
    color: #f2f4f7;
  }

  .tl-card > p {
    margin: 6px 0 8px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
  }

  .tl-points {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
    margin: 10px 0 0;
    padding: 0;
  }

  .tl-points li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: #aeb8c6;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .05);
    border-radius: 6px;
    padding: 3px 9px;
  }

  .tl-points i {
    color: var(--brand);
    font-size: 10px;
  }

  /* ========= 环境核对 ========= */
  .env-grid {
    display: grid;
    grid-template-columns: .92fr 1.08fr;
    gap: 44px;
    align-items: center;
  }

  .env-media {
    margin: 0;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .2);
  }

  .env-media img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform .4s ease;
  }

  .env-media:hover img {
    transform: scale(1.03);
  }

  .env-media figcaption {
    padding: 10px 14px;
    font-size: 12px;
    color: var(--muted);
    border-top: 1px solid var(--line);
  }

  .check-list {
    list-style: none;
    margin: 16px 0 0;
    padding: 0;
  }

  .check-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 13px 0;
    border-bottom: 1px dashed rgba(255, 255, 255, .08);
    color: rgba(231, 234, 240, .82);
    font-size: 14.5px;
    line-height: 1.65;
  }

  .check-list li:last-child {
    border-bottom: 0;
  }

  .check-list i {
    margin-top: 4px;
    color: var(--brand);
    width: 16px;
    text-align: center;
  }

  .env-note {
    margin: 14px 0 0;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.7;
  }

  /* ========= 指标 ========= */
  .metric-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .metric-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px 18px;
    transition: border-color .2s, transform .2s;
  }

  .metric-card:hover {
    border-color: rgba(255, 122, 26, .32);
    transform: translateY(-3px);
  }

  .metric-num {
    display: block;
    font-size: 34px;
    font-weight: 800;
    line-height: 1;
    color: var(--brand);
    font-variant-numeric: tabular-nums;
    letter-spacing: -1px;
  }

  .metric-num.small {
    font-size: 24px;
    letter-spacing: 0;
  }

  .metric-label {
    margin-top: 10px;
    display: block;
    font-size: 13px;
    color: var(--muted);
    letter-spacing: .4px;
  }

  .metric-sub {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: #7f8a9a;
  }

  /* ========= CTA ========= */
  .cta-box {
    position: relative;
    background:
      radial-gradient(520px 320px at 84% 12%, rgba(255, 122, 26, .18), transparent 62%),
      var(--surface);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 34px 34px;
    overflow: hidden;
  }

  .cta-box::after {
    content: "";
    position: absolute;
    right: -34px;
    top: -34px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    border: 1px solid rgba(255, 122, 26, .18);
    pointer-events: none;
  }

  .cta-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
  }

  .cta-copy h2 {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 700;
    color: #fff;
  }

  .cta-copy p {
    margin: 0;
    color: var(--muted);
    font-size: 13.5px;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 40px;
    padding: 9px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .2s, border-color .2s, transform .2s, box-shadow .2s;
    text-decoration: none;
  }

  .btn-primary-lg {
    background: var(--brand);
    color: #131313;
  }

  .btn-primary-lg:hover {
    background: #ff8b36;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(255, 122, 26, .22);
  }

  .btn-outline {
    background: transparent;
    color: var(--text);
    border-color: rgba(255, 255, 255, .16);
  }

  .btn-outline:hover {
    border-color: rgba(255, 122, 26, .48);
    color: var(--brand-2);
    transform: translateY(-1px);
  }

  .btn-outline.ok {
    border-color: rgba(34, 197, 94, .5);
    color: var(--ok);
  }

  /* ========= FAQ ========= */
  .faq-wrap {
    max-width: 880px;
    margin-inline: auto;
  }

  .faq-item {
    border-bottom: 1px solid var(--line);
  }

  .faq-q {
    width: 100%;
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 22px;
    gap: 12px;
    align-items: center;
    background: transparent;
    border: 0;
    padding: 20px 6px;
    color: var(--text);
    text-align: left;
    cursor: pointer;
    transition: background .18s;
  }

  .faq-q:hover {
    background: rgba(255, 255, 255, .02);
  }

  .faq-num {
    font-size: 14px;
    font-weight: 700;
    color: var(--brand);
    font-variant-numeric: tabular-nums;
  }

  .faq-text {
    font-size: 16px;
    font-weight: 600;
    color: #eef1f5;
  }

  .faq-icon {
    position: relative;
    width: 18px;
    height: 18px;
    justify-self: end;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 2px;
    background: var(--muted);
    border-radius: 2px;
    transform: translate(-50%, -50%);
    transition: background .2s, transform .22s;
  }

  .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
  }

  .faq-q:hover .faq-icon::before,
  .faq-q:hover .faq-icon::after {
    background: var(--brand);
  }

  .faq-item.open .faq-icon::before {
    transform: translate(-50%, -50%) rotate(45deg);
    background: var(--brand);
  }

  .faq-item.open .faq-icon::after {
    transform: translate(-50%, -50%) rotate(-45deg);
    background: var(--brand);
  }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .2s ease;
  }

  .faq-a-inner {
    padding: 0 6px 20px 56px;
  }

  .faq-a p {
    margin: 0;
    font-size: 14px;
    line-height: 1.75;
    color: var(--muted);
  }

  /* ========= Footer ========= */
  .site-footer {
    background: #0d0f13;
    border-top: 1px solid var(--line);
    padding: 52px 0 22px;
    color: var(--muted);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1.1fr;
    gap: 34px;
  }

  .footer-brand .brand {
    margin-bottom: 12px;
  }

  .footer-about {
    max-width: 460px;
    margin: 14px 0 0;
    font-size: 13.5px;
    line-height: 1.75;
    color: var(--muted);
  }

  .site-footer h4 {
    margin: 4px 0 14px;
    font-size: 14px;
    font-weight: 700;
    color: #e4e7ec;
    letter-spacing: .3px;
  }

  .footer-nav-link {
    display: block;
    padding: 6px 0;
    font-size: 13.5px;
    color: #a7b1bf;
    text-decoration: none;
    transition: color .18s, padding-left .18s;
  }

  .footer-nav-link:hover {
    color: var(--brand-2);
    padding-left: 5px;
  }

  .tag-gray {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #8f99aa;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .07);
    border-radius: 999px;
    padding: 4px 10px;
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    border-top: 1px solid rgba(255, 255, 255, .07);
    padding-top: 18px;
    margin-top: 22px;
    font-size: 12.5px;
    color: #7f8a9a;
  }

  .footer-complain {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
  }

  .foot-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: #7f8a9a;
    background: rgba(255, 255, 255, .04);
    border-radius: 999px;
    padding: 3px 9px;
    font-size: 11px;
  }

  .footer-domain {
    font-family: "SFMono-Regular", Consolas, monospace;
    letter-spacing: .4px;
  }

  /* ========= 响应式 ========= */
  @media (min-width: 1024px) and (max-width: 1200px) {
    .main-nav ul {
      gap: 18px;
    }

    .main-nav a {
      font-size: 13px;
    }

    .cmd-trigger {
      width: 160px;
    }
  }

  @media (max-width: 1023.98px) {
    .main-nav {
      position: fixed;
      top: 64px;
      left: 0;
      right: 0;
      height: calc(100vh - 64px);
      background: rgba(16, 19, 24, .98);
      padding: 12px 18px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(-8px);
      transition: opacity .2s, visibility .2s, transform .2s;
      z-index: 88;
      overflow-y: auto;
    }

    .main-nav.open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .main-nav ul {
      flex-direction: column;
      align-items: stretch;
      gap: 4px;
      padding: 0;
    }

    .main-nav a {
      display: block;
      padding: 13px 14px;
      font-size: 15px;
      border-radius: 10px;
    }

    .main-nav a.active {
      background: rgba(255, 122, 26, .1);
      color: #fff;
    }

    .main-nav a.active::after {
      display: none;
    }

    .desktop-cmd-wrap {
      display: none;
    }

    .cmd-icon-only {
      display: inline-flex;
    }

    .menu-toggle {
      display: inline-flex;
    }

    .env-grid {
      grid-template-columns: 1fr;
      gap: 22px;
    }

    .path-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .metric-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .cmd-esc {
      display: none;
    }
  }

  @media (max-width: 767.98px) {
    .section {
      padding: 46px 0;
    }

    .page-hero .hero-content {
      padding: 48px 0 40px;
    }

    .brand-text {
      font-size: 14px;
      letter-spacing: .2px;
    }

    .brand-mark {
      width: 30px;
      height: 30px;
      flex-basis: 30px;
      border-radius: 9px;
    }

    .header-cta {
      display: none;
    }

    .tl-row {
      grid-template-columns: 80px minmax(0, 1fr);
      gap: 14px;
    }

    .timeline-wrap::before {
      left: 39px;
    }

    .tl-card {
      padding: 16px;
    }

    .cta-box {
      padding: 24px 20px;
      border-radius: 16px;
    }

    .cta-inner {
      flex-direction: column;
      align-items: flex-start;
    }
  }

  @media (max-width: 519.98px) {
    .path-grid {
      grid-template-columns: 1fr;
    }

    .metric-grid {
      grid-template-columns: 1fr;
    }

    .metric-card {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 16px;
    }

    .metric-num {
      font-size: 28px;
    }

    .metric-label {
      margin-top: 0;
      font-size: 12px;
    }

    .metric-sub {
      display: inline;
    }

    .faq-q {
      grid-template-columns: 30px minmax(0, 1fr) 18px;
      padding: 17px 2px;
    }

    .faq-a-inner {
      padding-left: 40px;
    }

    .footer-bottom {
      flex-direction: column;
      text-align: center;
    }
  }