/* roulang page: index */
:root{
  --bg:#f6f2e9;
  --bg-soft:#efe9dc;
  --card:#fffcf5;
  --ink:#0e1a16;
  --ink-deep:#08110e;
  --muted:#637069;
  --muted-2:#8b968f;
  --line:rgba(14,26,22,.13);
  --green:#74e85a;
  --green-bright:#93f47d;
  --green-deep:#2f6f28;
  --deep:#0d1814;
  --deep-2:#13231d;
  --radius:16px;
  --radius-lg:24px;
  --radius-sm:10px;
  --shadow-sm:0 6px 20px rgba(14,26,22,.06);
  --shadow-md:0 18px 50px rgba(14,26,22,.1);
  --shadow-green:0 16px 35px rgba(116,232,90,.18);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --space:120px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(116,232,90,.45);
  outline-offset:3px;
  border-radius:4px;
}
button{font-family:var(--font);cursor:pointer}
h1,h2,h3,h4,h5,h6{
  margin:0;
  line-height:1.18;
  letter-spacing:-.02em;
  font-weight:700;
  color:var(--ink);
}
.container{
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--green-deep);
  text-transform:uppercase;
  background:rgba(116,232,90,.1);
  border:1px solid rgba(116,232,90,.28);
  padding:8px 16px;
  border-radius:100px;
}
.eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--green-deep);
}
.eyebrow.light{
  color:#cfe6bd;
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.15);
}
.eyebrow.light::before{background:var(--green)}
.section-pad{
  padding-top:var(--space);
  padding-bottom:var(--space);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:48px;
  padding:0 24px;
  border-radius:100px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn i{font-size:15px}
.btn-primary{
  background:var(--green);
  color:#0a130e;
  box-shadow:var(--shadow-green);
}
.btn-primary:hover{
  background:var(--green-bright);
  transform:translateY(-2px);
  box-shadow:0 20px 42px rgba(116,232,90,.26);
}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-dark{
  background:var(--ink);
  color:#eef6c9;
  border-color:rgba(255,255,255,.2);
}
.btn-dark:hover{
  background:var(--deep-2);
  border-color:var(--green);
  transform:translateY(-2px);
}
.btn-light{
  background:rgba(255,255,255,.08);
  color:#fff;
  border-color:rgba(255,255,255,.18);
  backdrop-filter:none;
}
.btn-light:hover{
  background:rgba(255,255,255,.16);
  border-color:var(--green);
  transform:translateY(-2px);
}
.btn-download{
  height:52px;
  padding:0 26px;
  font-size:16px;
}
.btn-download:hover i{transform:translateY(3px)}
.btn-download i{transition:transform .2s ease}
.btn-lg{height:56px;padding:0 34px;font-size:16px}
.btn-block{width:100%}

.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  height:72px;
  background:var(--bg);
  transition:box-shadow .25s ease,border-color .25s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  box-shadow:0 12px 40px rgba(14,26,22,.07);
  border-bottom:1px solid var(--line);
}
.nav-row{
  height:72px;
  max-width:1380px;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.logo-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--green);
  color:#081601;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-family:var(--mono);
  font-size:15px;
  font-weight:800;
  letter-spacing:-.04em;
  position:relative;
  overflow:hidden;
}
.logo-mark::after{
  content:"j9";
  position:absolute;
  font-family:var(--mono);
  font-size:11px;
  right:4px;
  bottom:1px;
  opacity:.55;
  font-weight:700;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:20px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.02em;
  flex-shrink:0;
}
.nav-cn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  margin:0 12px;
}
.nav-cn a{
  position:relative;
  font-size:16px;
  font-weight:500;
  padding:10px 15px;
  color:#36433c;
  border-radius:8px;
}
.nav-cn a::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:1px;
  height:2px;
  background:var(--green-deep);
  border-radius:10px;
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .2s ease;
}
.nav-cn a:hover{
  color:var(--ink);
  background:rgba(14,26,22,.04);
}
.nav-cn a.active{
  color:var(--ink);
  font-weight:700;
}
.nav-cn a.active::after{
  transform:scaleX(1);
}
.nav-cn a.active::before{
  content:"";
  position:absolute;
  left:14px;
  top:6px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--green-deep);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:100px;
  height:42px;
  padding:0 8px 0 16px;
  min-width:220px;
  color:var(--muted);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cmd-search:hover{
  border-color:rgba(47,111,40,.5);
}
.cmd-search:focus-within{
  border-color:var(--green-deep);
  box-shadow:0 0 0 3px rgba(116,232,90,.2);
}
.cmd-search input{
  border:none;
  outline:none;
  background:transparent;
  width:100%;
  font-size:14px;
  font-family:var(--font);
  color:var(--ink);
  height:36px;
}
.cmd-search .fa-search{color:var(--muted-2);display:flex}
kbd{
  font-family:var(--mono);
  font-size:12px;
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-bottom-width:2px;
  border-radius:6px;
  padding:2px 8px;
  color:var(--muted);
  white-space:nowrap;
}
.header-cta{
  background:var(--green);
  color:#081a05;
  border-radius:100px;
  font-size:14px;
  font-weight:700;
  height:42px;
  padding:0 22px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.header-cta:hover{
  background:var(--green-bright);
  transform:translateY(-2px);
  box-shadow:var(--shadow-green);
}
.mobile-toggle{
  display:none;
  width:44px;
  height:44px;
  border:none;
  background:var(--bg-soft);
  border-radius:12px;
  color:var(--ink);
  font-size:18px;
  align-items:center;
  justify-content:center;
}
.mobile-nav{
  display:none;
  position:fixed;
  inset:0;
  z-index:2000;
  background:var(--bg);
  flex-direction:column;
}
.mobile-nav.open{display:flex}
.mobile-nav-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  padding:0 24px;
  border-bottom:1px solid var(--line);
}
.mobile-nav-links{
  padding:24px;
  overflow-y:auto;
  flex:1;
}
.mobile-nav-links a{
  display:flex;
  justify-content:space-between;
  padding:16px 4px;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-nav-links a:hover{color:var(--green-deep)}
.mobile-nav-links a i{font-size:15px;color:var(--muted-2)}
.mobile-nav-bottom{
  padding:16px 24px calc(16px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);
}
.mobile-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  height:48px;
  padding:0 16px;
  margin-bottom:16px;
}
.mobile-search input{
  border:0;
  outline:0;
  background:transparent;
  width:100%;
}

/* Hero */
.hero{
  position:relative;
  background:var(--deep);
  min-height:660px;
  display:flex;
  align-items:center;
  padding:160px 0 100px;
  overflow:hidden;
  color:#fff;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.18;
  mix-blend-mode:screen;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,var(--deep) 28%,rgba(13,24,20,.92) 58%,rgba(13,24,20,.45));
}
.hero-glow{
  content:"";
  position:absolute;
  width:720px;
  height:720px;
  right:-160px;
  bottom:-260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(116,232,90,.26),transparent 62%);
  pointer-events:none;
}
.hero-symbol{
  position:absolute;
  right:-20px;
  top:-160px;
  font-family:var(--mono);
  font-size:540px;
  font-weight:800;
  line-height:1;
  color:rgba(255,255,255,.035);
  pointer-events:none;
  user-select:none;
  letter-spacing:-.1em;
}
.hero .container{position:relative;z-index:2}
.hero-copy{max-width:640px}
.hero-title{
  font-size:clamp(40px,5vw,66px);
  line-height:1.08;
  color:#fff;
  margin:22px 0 18px;
  font-weight:800;
  letter-spacing:-.035em;
}
.hero-title .mono-row{
  font-family:var(--mono);
  color:var(--green);
  position:relative;
}
.hero-sub{
  max-width:540px;
  font-size:17px;
  line-height:1.85;
  color:#c9d6cf;
  margin-bottom:36px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
}
.hero-info-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px 32px;
  margin-top:52px;
  padding-top:28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-family:var(--mono);
  font-size:12.5px;
  color:#9db3a8;
  letter-spacing:.01em;
}
.hero-info-row span{display:inline-flex;align-items:center;gap:10px}
.hero-info-row i{color:var(--green);font-style:normal}
.hero-visual{
  position:relative;
  padding-right:0;
}
.hero-visual-wrap{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  box-shadow:0 40px 90px rgba(0,0,0,.4);
  border:1px solid rgba(255,255,255,.16);
  transform:rotate(.5deg);
}
.hero-visual-wrap img{
  width:100%;
  height:420px;
  object-fit:cover;
}
.hero-visual-caption{
  position:absolute;
  left:16px;
  bottom:16px;
  background:rgba(10,19,15,.72);
  padding:8px 14px;
  border-radius:8px;
  font-size:13px;
  color:#e5f6d8;
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:none;
}
.hero-float-card{
  position:absolute;
  right:-18px;
  bottom:46px;
  background:var(--green);
  color:#0a1506;
  border-radius:14px;
  padding:12px 18px;
  font-weight:700;
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  box-shadow:var(--shadow-green);
  animation:nod 6s ease-in-out infinite;
}
.hero-float-card i{
  font-size:18px;
}
@keyframes nod{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-6px)}
}

/* Showcase slider */
.showcase{
  background:var(--bg);
}
.showcase-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:34px;
}
.showcase h2{
  font-size:clamp(28px,3.4vw,42px);
  margin-top:8px;
}
.showcase-left{max-width:540px}
.slider-shell{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--deep-2);
  min-height:400px;
}
.slide{
  position:absolute;
  inset:0;
  opacity:0;
  visibility:hidden;
  transition:opacity .7s ease,visibility .7s ease;
}
.slide.active{
  opacity:1;
  visibility:visible;
  position:relative;
}
.slide-inner{
  display:flex;
  flex-direction:row;
  background:var(--deep-2);
  height:100%;
}
.slide-image{
  flex:1.4;
  min-height:410px;
  max-height:500px;
}
.slide-image img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.slide-meta{
  flex:1;
  padding:clamp(28px,4vw,48px);
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.slide-count{
  font-family:var(--mono);
  color:var(--green);
  font-size:13px;
  margin-bottom:10px;
  letter-spacing:.06em;
}
.slide-meta h3{
  color:#fff;
  font-size:clamp(24px,2.4vw,32px);
  margin:8px 0 14px;
}
.slide-meta p{
  color:#c0cec5;
  margin:0 0 18px;
  font-size:15px;
  line-height:1.8;
}
.slide-tags{
  display:flex;
  gap:10px;
  margin-top:12px;
  flex-wrap:wrap;
}
.slider-arrow{
  position:absolute;
  width:48px;
  height:48px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink);
  box-shadow:var(--shadow-sm);
  z-index:5;
  top:40%;
  font-size:16px;
  transition:all .2s ease;
}
.slider-arrow:hover{
  background:var(--green);
  color:#0a1306;
  border-color:var(--green);
  transform:translateY(-2px);
}
.slider-arrow.prev{left:14px}
.slider-arrow.next{right:14px}
.slider-dots{
  display:flex;
  justify-content:center;
  margin-top:22px;
  gap:10px;
}
.slider-dots button{
  width:10px;
  height:10px;
  border-radius:6px;
  border:none;
  background:rgba(14,26,22,.18);
  transition:width .3s ease,background .3s ease;
}
.slider-dots button.active{
  width:26px;
  background:var(--green-deep);
}

/* editorial features */
.editorial{
  background:var(--bg);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.editorial-grid{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:clamp(40px,6vw,88px);
  align-items:start;
}
.editorial-intro .eyebrow{margin-bottom:20px}
.editorial-intro h2{
  font-size:clamp(32px,3.4vw,44px);
  margin-bottom:16px;
}
.editorial-intro > p{
  font-size:16px;
  color:var(--muted);
  max-width:380px;
  margin-bottom:28px;
}
.editorial-intro .more-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--green-deep);
  font-weight:700;
  font-size:15px;
}
.editorial-intro .more-link i{
  transition:transform .2s ease;
}
.editorial-intro .more-link:hover i{
  transform:translateX(5px);
}
.feature-stack{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
}
.feature-item{
  display:grid;
  grid-template-columns:72px 1fr;
  gap:18px;
  padding:28px 28px;
  background:var(--card);
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.feature-item:last-child{border-bottom:0}
.feature-item:hover{background:#fff}
.feature-num{
  font-family:var(--mono);
  font-size:13px;
  color:var(--green-deep);
  background:rgba(116,232,90,.14);
  width:38px;
  height:38px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
}
.feature-item h3{
  font-size:18px;
  margin-bottom:6px;
}
.feature-item p{
  margin:0;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}
.feature-icon{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--bg-soft);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--green-deep);
}
.feature-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-bottom:8px;
}

/* Requirements */
.sysreq{
  background:#eee8dc;
}
.sysreq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.sys-card{
  background:var(--card);
  border-radius:var(--radius-lg);
  padding:34px 32px;
  border:1px solid var(--line);
  transition:transform .25s ease,box-shadow .25s ease;
  box-shadow:var(--shadow-sm);
}
.sys-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.sys-card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-bottom:20px;
}
.sys-card-title{
  display:flex;
  align-items:center;
  gap:14px;
}
.sys-card-title .sys-icon{
  width:44px;
  height:44px;
  border-radius:14px;
  background:var(--deep);
  color:var(--green);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:19px;
}
.sys-card-title h3{
  font-size:22px;
}
.sys-tag{
  font-size:13px;
  background:rgba(47,111,40,.08);
  border:1px solid rgba(47,111,40,.15);
  color:var(--green-deep);
  padding:6px 12px;
  border-radius:100px;
  font-weight:600;
}
.spec-table{
  margin-top:6px;
}
.spec-row{
  display:flex;
  justify-content:space-between;
  border-bottom:1px dashed var(--line);
  padding:14px 0;
  gap:20px;
}
.spec-row:last-child{
  border-bottom:0;
  padding-bottom:0;
}
.spec-name{
  color:var(--muted);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}
.spec-name i{
  color:var(--green-deep);
  width:14px;
}
.spec-value{
  text-align:right;
  color:var(--ink);
  font-family:var(--mono);
  font-size:14px;
  font-weight:600;
  word-break:break-word;
}
.sysreq-note{
  margin-top:24px;
  font-size:14px;
  color:var(--muted);
  display:flex;
  align-items:flex-start;
  gap:8px;
}
.sysreq-note i{
  margin-top:4px;
  color:var(--green-deep);
}

/* Status honesty + feedback */
.trust-section{
  background:var(--bg);
}
.trust-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 32px;
  height:100%;
}
.trust-card .trust-head{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:18px;
}
.trust-card .trust-head .trust-icon{
  width:48px;
  height:48px;
  border-radius:16px;
  background:var(--deep);
  color:var(--green);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
}
.trust-card h3{
  font-size:22px;
}
.trust-card p{
  color:var(--muted);
  font-size:15.5px;
  margin-bottom:12px;
}
.feedback-form{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.feedback-form textarea,.feedback-form .field{
  background:#faf6ef;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:14px 16px;
  font-family:var(--font);
  font-size:14px;
  color:var(--ink);
  width:100%;
  resize:vertical;
  min-height:88px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  outline:none;
}
.feedback-form input.field{
  height:48px;
  min-height:48px;
}
.feedback-form input.field:focus,.feedback-form textarea:focus{
  border-color:var(--green-deep);
  box-shadow:0 0 0 3px rgba(116,232,90,.18);
  background:#fff;
}
.form-success{
  display:none;
  color:var(--green-deep);
  background:rgba(116,232,90,.1);
  border:1px solid rgba(116,232,90,.25);
  border-radius:var(--radius-sm);
  padding:12px 14px;
  font-size:14px;
  margin-bottom:0 !important;
}
.form-success.visible{display:flex;align-items:center;gap:8px}
.trust-list{
  list-style:none;
  padding:0;
  margin:10px 0 0;
}
.trust-list li{
  display:flex;
  gap:10px;
  color:var(--muted);
  font-size:14.5px;
  padding:6px 0;
  border-top:1px solid var(--line);
}
.trust-list li:first-child{border-top:0}
.trust-list li i{color:var(--green-deep);margin-top:4px}

/* Hotspot content */
.hotspot-section{
  background:var(--deep);
  color:#fff;
}
.hotspot-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:20px;
  margin-bottom:36px;
}
.hotspot-head h2{color:#fff}
.hotspot-head p{color:#9fb4a9;max-width:420px;margin-top:8px}
.hotspot-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:20px;
}
.hot-card{
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  min-height:300px;
  display:flex;
  align-items:flex-end;
  background:var(--deep-2);
  border:1px solid rgba(255,255,255,.1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.hot-card:hover{
  transform:translateY(-5px);
  border-color:rgba(116,232,90,.45);
  box-shadow:0 24px 50px rgba(0,0,0,.3);
}
.hot-card .hot-bg{
  position:absolute;
  inset:0;
  overflow:hidden;
}
.hot-card .hot-bg img{
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.55;
  transition:transform .5s ease,opacity .5s ease;
}
.hot-card:hover .hot-bg img{
  transform:scale(1.05);
  opacity:.75;
}
.hot-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 22%,rgba(5,10,7,.92) 100%);
  z-index:1;
}
.hot-topline{
  position:absolute;
  left:18px;
  top:18px;
  right:18px;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.hot-tag{
  font-size:12px;
  font-weight:700;
  padding:5px 12px;
  border-radius:100px;
  background:rgba(10,16,12,.4);
  border:1px solid rgba(255,255,255,.18);
  color:#effad7;
  backdrop-filter:none;
}
.hot-tag.green{
  background:var(--green);
  color:#101b05;
  border-color:transparent;
}
.hot-card .hot-index{
  position:absolute;
  right:20px;
  bottom:4px;
  font-family:var(--mono);
  font-size:76px;
  font-weight:800;
  color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.22);
  line-height:1;
  pointer-events:none;
}
.hot-card .hot-body{
  position:relative;
  z-index:2;
  padding:24px;
}
.hot-card .hot-body h3{color:#fff;font-size:22px;margin-bottom:8px}
.hot-card .hot-body p{color:#ccd8d0;font-size:14px;line-height:1.7}
.hot-card .hot-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:14px;
  color:#a2baaa;
  font-size:13px;
}
.progress-line{
  height:3px;
  background:rgba(255,255,255,.14);
  border-radius:6px;
  margin-top:14px;
  overflow:hidden;
}
.progress-line span{
  display:block;
  height:100%;
  background:var(--green);
  border-radius:6px;
}
.hot-card.xl{grid-column:span 5;min-height:370px}
.hot-card.normal{grid-column:span 4}
.hot-card.vertical{grid-column:span 3;min-height:340px}
.hot-card.wide{grid-column:span 8;min-height:300px}
.hot-sub-link{
  color:#b9d62b;
  font-size:14px;
  display:inline-flex;
  gap:6px;
  margin-top:12px;
  font-weight:600;
}

/* CMS list */
.posts-section{
  background:var(--bg);
}
.section-heading{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:20px;
  margin-bottom:38px;
}
.section-heading h2{
  font-size:clamp(28px,3vw,40px);
}
.section-heading .note{
  font-size:14px;
  color:var(--muted);
}
.post-list{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.post-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(47,111,40,.25);
}
.post-cat{
  font-size:13px;
  color:var(--green-deep);
  background:rgba(116,232,90,.14);
  padding:5px 12px;
  border-radius:100px;
  align-self:flex-start;
  margin-bottom:12px;
  font-weight:600;
}
.post-card h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:10px;
  flex:0 0 auto;
}
.post-card h3 a{
  color:var(--ink);
}
.post-card h3 a:hover{color:var(--green-deep)}
.post-summary{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.post-meta{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-top:auto;
  font-size:13px;
  color:var(--muted-2);
  border-top:1px solid var(--line);
  padding-top:14px;
}
.post-meta a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--green-deep);
  font-weight:700;
  transition:gap .2s ease;
}
.post-card:hover .post-meta a{gap:10px}
.empty-state{
  grid-column:1/-1;
  text-align:center;
  background:var(--card);
  border:1px dashed var(--line);
  border-radius:var(--radius-lg);
  padding:80px 30px;
  color:var(--muted);
  font-size:16px;
}

/* FAQ */
.faq-section{
  background:#eee8db;
}
.faq-inner{
  max-width:860px;
  margin:0 auto;
  text-align:center;
}
.faq-inner h2{
  font-size:clamp(28px,3vw,40px);
  margin:10px 0 6px;
}
.faq-inner .faq-note{
  color:var(--muted);
  font-size:15px;
  margin-bottom:34px;
}
.accordion{
  text-align:left;
}
.acc-item{
  background:var(--card);
  border-radius:var(--radius);
  border:1px solid var(--line);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.acc-item:hover{
  border-color:rgba(47,111,40,.3);
  box-shadow:var(--shadow-sm);
}
.acc-item.open{
  border-color:rgba(47,111,40,.35);
  box-shadow:var(--shadow-sm);
}
.acc-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:100%;
  padding:20px 22px;
  background:transparent;
  border:0;
  font-size:15.5px;
  color:var(--ink);
  font-weight:600;
  text-align:left;
  font-family:var(--font);
}
.acc-icon{
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--bg-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  position:relative;
  color:var(--green-deep);
}
.acc-icon::before,.acc-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:4px;
  transition:transform .22s ease;
}
.acc-icon::before{width:10px;height:2px}
.acc-icon::after{width:2px;height:10px}
.acc-item.open .acc-icon::after{transform:scaleY(0)}
.acc-body{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.acc-body-inner{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}

/* CTA + form */
.bottom-cta{
  background:var(--deep);
  position:relative;
  overflow:hidden;
  color:#fff;
}
.bottom-cta::before{
  content:"";
  position:absolute;
  width:500px;
  height:500px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(116,232,90,.16),transparent 65%);
  left:-80px;
  bottom:-220px;
}
.cta-inner{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:48px;
  align-items:center;
}
.cta-copy h2{color:#fff;font-size:clamp(30px,3.4vw,44px);line-height:1.2}
.cta-copy p{color:#aabbae;font-size:16px;max-width:500px;margin:14px 0 26px}
.cta-dl-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.cta-form{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);
  padding:28px;
}
.cta-form h3{color:#fff;font-size:20px;margin-bottom:10px}
.cta-form p{color:#a9bcb1;font-size:14px;line-height:1.7;margin-bottom:18px}
.cta-form .form-row{
  display:flex;
  flex-direction:column;
  margin-bottom:12px;
}
.cta-form input{
  width:100%;
  background:#161f1a;
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-sm);
  padding:13px 14px;
  color:#fff;
  font-size:14px;
  font-family:var(--font);
  outline:0;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:#7d9086}
.cta-form input:focus{
  border-color:var(--green);
  box-shadow:0 0 0 3px rgba(116,232,90,.18);
  background:#1a241f;
}
.cta-form .btn{width:100%;height:48px}
.form-note{
  font-size:13px;
  color:#82978a;
  display:flex;
  gap:8px;
  align-items:center;
  margin-bottom:14px;
}
.form-note i{color:var(--green)}

/* Download group full width */
.download-strip{
  background:var(--bg);
}
.download-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.dl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 20px;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.dl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,111,40,.25);
  box-shadow:var(--shadow-md);
}
.dl-icon{
  width:52px;
  height:52px;
  border-radius:16px;
  background:var(--bg-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  color:var(--ink);
  margin-bottom:16px;
}
.dl-card:hover .dl-icon{background:var(--green);color:#0b1806}
.dl-card h3{font-size:18px}
.dl-card .dl-ver{
  font-family:var(--mono);
  font-size:12px;
  color:var(--muted-2);
  margin:4px 0 18px;
}
.dl-card a{
  font-size:14px;
  color:var(--green-deep);
  font-weight:700;
  display:inline-flex;
  gap:6px;
}
.dl-card a:hover span{transform:translateX(4px)}
.dl-card a span{transition:transform .2s ease}

/* Footer */
.site-footer{
  background:var(--ink-deep);
  color:#b8c4bc;
  padding-top:70px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .logo{
  color:#fff;
  margin-bottom:14px;
}
.logo .logo-mark{margin-right:12px}
.footer-brand p{
  color:#8da096;
  font-size:14px;
  max-width:300px;
  margin:10px 0;
}
.footer-domain{
  display:inline-flex;
  gap:8px;
  font-family:var(--mono);
  font-size:12px;
  margin-top:8px;
  color:#73847b;
}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
}
.footer-links li{margin-bottom:10px}
.footer-links a{
  color:#8fa198;
  font-size:14px;
  transition:color .2s ease;
}
.footer-links a:hover{
  color:var(--green);
}
.footer-links i{
  margin-right:8px;
  font-size:12px;
  color:#5a6c62;
}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
}
.footer-bottom{
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  color:#7d9186;
  font-size:13px;
}
.footer-bottom a{color:#8da198}
.footer-bottom a:hover{color:var(--green)}
.footer-beian{
  font-family:var(--mono);
}

@media (max-width:1024px){
  :root{--space:96px}
  .nav-cn{display:none}
  .nav-right .cmd-search{display:none}
  .mobile-toggle{display:inline-flex}
  .hotspot-grid{grid-template-columns:repeat(2,1fr)}
  .hot-card.xl,.hot-card.normal,.hot-card.vertical{grid-column:span 1}
  .hot-card.xl{grid-column:span 2}
  .post-list{grid-template-columns:repeat(2,1fr)}
  .download-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-copy p{max-width:100%}
  .slide-inner{flex-direction:column}
  .slide-image{max-height:340px;min-height:240px}
  .slide-meta{padding:28px}
  .slider-shell{min-height:auto}
}
@media (max-width:768px){
  .hero{min-height:auto;padding:130px 0 80px}
  .hero-title{font-size:40px}
  .hero-info-row{gap:12px;flex-direction:column;align-items:flex-start}
  .editorial-grid{grid-template-columns:1fr}
  .editorial-intro > p{max-width:600px}
  .sysreq-grid{grid-template-columns:1fr}
  .section-heading{flex-direction:column}
  .feature-item{grid-template-columns:1fr;gap:12px}
  .feature-num{margin-bottom:2px}
  .hotspot-grid{grid-template-columns:1fr}
  .hot-card.xl{grid-column:span 1}
  .post-list{grid-template-columns:1fr}
}
@media (max-width:640px){
  :root{--space:72px}
  body{font-size:15px}
  .section-pad{padding-top:72px;padding-bottom:72px}
  .hero{padding:120px 0 68px}
  .hero-actions{display:grid;grid-template-columns:1fr}
  .hero-actions .btn{width:100%;height:52px}
  .hero-visual-wrap{transform:none}
  .hero-visual-wrap img{height:240px}
  .hero-float-card{
    position:relative;
    right:auto;
    bottom:auto;
    margin-top:12px;
    display:flex;
    justify-content:center;
  }
  .slide-image{min-height:220px}
  .slider-arrow{top:34%;width:42px;height:42px}
  .slide-meta h3{font-size:22px}
  .slider-arrow.next{right:8px}
  .slider-arrow.prev{left:8px}
  .download-grid{grid-template-columns:1fr 1fr;gap:14px}
  .dl-card{padding:20px 16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .bottom-cta .btn{width:100%}
  .cta-form{padding:22px}
  .trust-card{padding:26px 22px}
  .sys-card{padding:28px 24px}
  .spec-row{flex-direction:column;gap:2px;padding:12px 0}
  .spec-name{font-size:13px}
  .spec-value{text-align:left}
  .showcase-head{flex-direction:column;align-items:flex-start}
  .nav-row{padding:0 16px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .hero-float-card{
    animation:none;
  }
}

/* roulang page: article */
:root {
    --bg-soft: #f5f1ea;
    --bg-card: #fcfbf8;
    --ink-dark: #16211c;
    --ink-mid: #5f6f68;
    --ink-light: #96a19b;
    --ink-accent: #1d3529;
    --signal: #4be68c;
    --signal-dark: #2dc96f;
    --line: rgba(22, 33, 30, 0.12);
    --radius-card: 18px;
    --radius-pill: 999px;
    --radius-tag: 10px;
    --shadow-soft: 0 8px 32px rgba(22, 33, 28, 0.07);
    --shadow-float: 0 20px 52px rgba(22, 33, 28, 0.10);
    --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    --space-section: 120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg-soft);
    color: var(--ink-dark);
    font-family: var(--font-cn);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: inline-block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, ul, ol, figure { margin: 0 0 1em; }
ul, ol { padding-left: 1.2em; }
kbd {
    font-family: var(--font-mono);
    font-size: 11px;
    background: #ede9df;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 1px 7px;
    color: var(--ink-mid);
}
.container {
    max-width: 1220px;
    margin-inline: auto;
    padding-inline: 28px;
}

/* ---------- header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(251, 249, 243, 0.92);
    backdrop-filter: none;
    border-bottom: 1px solid transparent;
    transition: box-shadow .25s ease, border-color .25s ease;
}
.site-header.is-scrolled {
    border-bottom-color: var(--line);
    box-shadow: 0 10px 30px rgba(22, 33, 28, 0.05);
}
.header-inner {
    position: relative;
    display: flex;
    align-items: center;
    gap: 24px;
    min-height: 72px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    flex-shrink: 0;
}
.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--ink-dark);
    color: var(--signal);
    font-family: var(--font-mono);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.5px;
    transform: rotate(-8deg);
    transition: transform .3s cubic-bezier(.2,.8,.2,1);
}
.site-header .logo:hover .logo-mark { transform: rotate(0deg) scale(1.04); }
.logo-name {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.nav-cn {
    display: flex;
    align-items: center;
    gap: 30px;
    margin: 0 auto;
}
.nav-cn a {
    position: relative;
    font-size: 15px;
    color: var(--ink-mid);
    font-weight: 500;
    white-space: nowrap;
    transition: color .2s ease;
}
.nav-cn a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    background: var(--signal);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .25s ease;
}
.nav-cn a:hover { color: var(--ink-dark); }
.nav-cn a:hover::after { transform: scaleX(1); }
.nav-cn a.active { color: var(--ink-dark); font-weight: 600; }
.nav-cn a.active::after { transform: scaleX(1); }
.header-tools {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}
.cmd-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f2efe8;
    border: 1px solid var(--line);
    border-radius: var(--radius-tag);
    padding: 6px 10px;
    width: 218px;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.cmd-search .fa-magnifying-glass, .cmd-search .fa-search { color: var(--ink-light); font-size: 13px; }
.cmd-search input {
    flex: 1;
    min-width: 0;
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--ink-dark);
    outline: none;
}
.cmd-search input::placeholder { color: var(--ink-light); }
.cmd-search:focus-within {
    border-color: var(--signal);
    box-shadow: 0 0 0 3px rgba(75, 230, 140, 0.18);
    background: #fffdf8;
}
.btn-download-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 21px;
    background: var(--signal);
    color: #0b1a12;
    font-size: 14px;
    font-weight: 700;
    border-radius: var(--radius-pill);
    box-shadow: 0 2px 10px rgba(43, 205, 111, 0.35);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-download-nav:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(43, 205, 111, 0.3); background: #6df3a3; }
.btn-download-nav:active { transform: scale(.96); }
.btn-download-nav i { font-size: 13px; transition: transform .2s ease; }
.btn-download-nav:hover i { transform: translateY(2px); }
.burger {
    display: none;
    background: transparent;
    border: 1px solid var(--line);
    width: 42px;
    height: 42px;
    border-radius: 12px;
    color: var(--ink-dark);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all .2s ease;
}
.burger:hover { background: var(--bg-card); border-color: var(--signal); }

/* ---------- article hero ---------- */
.article-hero {
    position: relative;
    background: var(--ink-accent);
    color: #f8fff9;
    overflow: hidden;
    padding: 58px 0 54px;
}
.article-hero .hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.24;
    z-index: 0;
}
.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, rgba(13, 24, 19, 0.95) 0%, rgba(18, 38, 29, 0.87) 55%, rgba(31, 55, 43, 0.62) 100%);
    z-index: 1;
}
.article-hero .container {
    position: relative;
    z-index: 2;
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    font-size: 13px;
    color: rgba(247, 255, 251, 0.72);
    margin-bottom: 24px;
}
.breadcrumb a { color: var(--signal); transition: color .2s ease; }
.breadcrumb a:hover { color: #c0ffdf; }
.breadcrumb .sep { opacity: 0.45; font-family: var(--font-mono); }
.article-hero h1 {
    max-width: 900px;
    font-size: clamp(34px, 5vw, 60px);
    line-height: 1.16;
    letter-spacing: -0.5px;
    font-weight: 750;
    margin: 0 0 20px;
}
.meta-line {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    font-size: 14px;
    color: rgba(247, 255, 251, 0.8);
}
.meta-line span { display: inline-flex; align-items: center; gap: 7px; }
.meta-line i { color: var(--signal); font-size: 12px; }
.meta-tag {
    background: rgba(75, 230, 140, 0.15);
    border: 1px solid rgba(75, 230, 140, 0.36);
    color: var(--signal);
    padding: 2px 14px;
    border-radius: var(--radius-tag);
    font-size: 13px;
    font-weight: 500;
}
.hero-monoline {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: rgba(247, 255, 251, 0.44);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 16px;
}

/* ---------- article body ---------- */
.article-wrap {
    padding: 80px 0 58px;
}
.article-container {
    max-width: 1220px;
    margin-inline: auto;
    padding-inline: 28px;
}
.article-reader {
    max-width: 820px;
    margin-inline: auto;
    background: var(--bg-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    padding: 54px 60px 46px;
}
.cms-body {
    color: #26332c;
    font-size: 17px;
    line-height: 1.95;
}
.cms-body p {
    margin-bottom: 1.5em;
}
.cms-body h2 {
    font-size: 27px;
    font-weight: 730;
    letter-spacing: -0.3px;
    margin: 1.6em 0 0.7em;
    padding-top: 0.2em;
    border-top: 1px solid var(--line);
}
.cms-body h3 {
    font-size: 21px;
    font-weight: 700;
    margin: 1.5em 0 0.5em;
    color: var(--ink-accent);
}
.cms-body a {
    color: #1c9c55;
    border-bottom: 1px solid rgba(28, 156, 85, 0.3);
    transition: border-color .2s ease, color .2s ease;
}
.cms-body a:hover { border-color: #1c9c55; color: #0f7a3f; }
.cms-body ul,
.cms-body ol {
    margin-bottom: 1.5em;
    padding-left: 1.6em;
}
.cms-body li { margin-bottom: .4em; }
.cms-body blockquote {
    border-left: 4px solid var(--signal);
    background: #f0fcf4;
    border-radius: 0 12px 12px 0;
    padding: 16px 22px;
    margin: 1.6em 0;
    color: var(--ink-mid);
}
.cms-body img {
    border-radius: 12px;
    margin: 18px 0;
}
.cms-body .wp-caption, .cms-body figcaption {
    font-size: 13px;
    color: var(--ink-light);
    text-align: center;
    margin-top: -12px;
}
.empty-state {
    text-align: center;
    padding: 70px 24px 66px;
    background: var(--bg-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    max-width: 640px;
    margin-inline: auto;
}
.empty-state i {
    font-size: 46px;
    color: var(--signal);
    background: rgba(75, 230, 140, 0.2);
    padding: 20px;
    border-radius: 50%;
    margin-bottom: 20px;
    display: inline-block;
}
.empty-state h2 {
    font-size: 26px;
    margin-bottom: 10px;
}
.empty-state p {
    color: var(--ink-mid);
    margin-bottom: 24px;
}
.btn-cta-main {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--signal);
    color: #0b1a12;
    font-size: 15px;
    font-weight: 700;
    padding: 12px 30px;
    border-radius: var(--radius-pill);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-cta-main:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(45, 201, 111, 0.4); background: #63f1a0; }
.btn-cta-main:active { transform: scale(.97); }

.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 30px;
    flex-wrap: wrap;
}
.article-nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--ink-dark);
    border: 1px solid var(--line);
    border-radius: var(--radius-tag);
    padding: 8px 18px;
    background: var(--bg-card);
    transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.article-nav a:hover { border-color: var(--signal); box-shadow: var(--shadow-soft); transform: translateY(-1px); }
.article-nav .a-home { margin-inline: auto; }

/* ---------- explore ---------- */
.explore-section {
    padding: 20px 0 0;
}
.section-head {
    margin-bottom: 34px;
    max-width: 800px;
}
.eyebrow {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 13px;
    color: #1faa5e;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
    background: rgba(32, 180, 96, 0.12);
    padding: 2px 12px;
    border-radius: var(--radius-tag);
}
.section-head h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 730;
    line-height: 1.2;
    letter-spacing: -0.4px;
    margin-bottom: 8px;
}
.section-sub {
    color: var(--ink-mid);
    font-size: 16px;
    max-width: 720px;
}
.explore-grid {
    margin-bottom: 20px;
}
.explore-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--bg-card);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(22, 33, 30, 0.06);
    transition: transform .25s ease, box-shadow .25s ease;
}
.explore-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-float); }
.explore-card .poster {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.explore-card .poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s ease;
}
.explore-card:hover .poster img { transform: scale(1.04); }
.explore-card .poster::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(22, 33, 28, 0) 20%, rgba(22, 33, 28, 0.42) 100%);
    pointer-events: none;
}
.explore-card .poster .badge-cat {
    position: absolute;
    left: 16px;
    top: 14px;
    z-index: 1;
    background: rgba(21, 32, 27, 0.75);
    color: #eafff2;
    backdrop-filter: none;
    padding: 4px 12px;
    border-radius: var(--radius-tag);
    font-size: 12px;
    font-weight: 600;
}
.explore-card .body-pad {
    padding: 22px 22px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.explore-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.4;
}
.explore-card p {
    font-size: 14px;
    color: var(--ink-mid);
    margin-bottom: 20px;
    flex: 1;
}
.explore-card .card-link {
    font-size: 14px;
    color: #11954d;
    font-weight: 650;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.explore-card .card-link i { transition: transform .2s ease; }
.explore-card:hover .card-link i { transform: translateX(4px); }

/* ---------- faq ---------- */
.faq-section {
    padding: var(--space-section) 0;
}
.faq-panel {
    max-width: 820px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid rgba(22, 33, 30, 0.08);
    border-radius: 16px;
    margin-bottom: 14px;
    padding: 6px 0;
    box-shadow: 0 2px 10px rgba(22,33,28,0.03);
    transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item.is-open { border-color: rgba(45, 201, 111, 0.45); box-shadow: 0 8px 24px rgba(22,33,28,.06); }
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 17px;
    font-weight: 570;
    color: var(--ink-dark);
    background: none;
    border: none;
    text-align: left;
    padding: 18px 22px 14px;
    cursor: pointer;
    font-family: var(--font-cn);
}
.faq-question i {
    color: var(--signal-dark);
    flex-shrink: 0;
    transition: transform .25s ease;
}
.faq-item.is-open .faq-question i { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height .35s cubic-bezier(.4,0,.2,1), opacity .25s ease;
    padding: 0 22px;
}
.faq-item.is-open .faq-answer {
    max-height: 360px;
    opacity: 1;
    padding-bottom: 22px;
}
.faq-answer p {
    font-size: 15px;
    color: var(--ink-mid);
    margin-bottom: 0;
    border-top: 1px dashed var(--line);
    padding-top: 14px;
    line-height: 1.85;
}
.faq-answer a {
    color: #1fa75a;
    border-bottom: 1px solid rgba(31, 167, 90, 0.3);
}

/* ---------- CTA ---------- */
.cta-download-section {
    margin: 0;
    padding: 0;
}
.cta-box {
    position: relative;
    background: var(--ink-dark);
    overflow: hidden;
    border-radius: 30px;
    box-shadow: var(--shadow-float);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 56px 56px;
    margin-bottom: 110px;
}
.cta-box::before {
    content: "9";
    position: absolute;
    right: 60px;
    top: -80px;
    font-family: var(--font-mono);
    font-size: 310px;
    font-weight: 700;
    color: rgba(75, 230, 140, 0.06);
    pointer-events: none;
    line-height: 1;
    transform: rotate(10deg);
}
.cta-box .cta-content {
    z-index: 2;
    flex: 1;
    color: #f4fff8;
}
.cta-box .eyebrow { color: #b5ffd8; background: rgba(75,230,140,.13); border:1px solid rgba(75,230,140,.2); }
.cta-box h2 {
    font-size: clamp(26px, 4vw, 40px);
    line-height: 1.25;
    margin: 14px 0 12px;
    font-weight: 720;
}
.cta-box p {
    color: rgba(226, 255, 239, 0.72);
    font-size: 16px;
    max-width: 580px;
}
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 24px;
}
.btn-main-green {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 30px;
    border-radius: var(--radius-pill);
    background: var(--signal);
    color: #0a1a10;
    font-weight: 700;
    font-size: 15px;
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}
.btn-main-green:hover { transform: translateY(-2px); background: #67f2a2; box-shadow: 0 10px 24px rgba(45, 201, 111, .35); }
.btn-main-green:active { transform: scale(.96); }
.btn-ghost-light {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 28px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.24);
    color: #f0fff6;
    font-weight: 600;
    font-size: 15px;
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.btn-ghost-light:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,.45); transform: translateY(-2px); }
.cta-side {
    position: relative;
    z-index: 1;
    flex: 0 0 290px;
    transform: rotate(3deg);
    filter: drop-shadow(0 18px 30px rgba(8, 16, 11, 0.4));
}
.cta-side img {
    border-radius: 20px;
    width: 100%;
    display: block;
    border: 3px solid rgba(75, 230, 140, 0.24);
}

/* ---------- footer ---------- */
.site-footer {
    background: var(--ink-dark);
    color: rgba(240, 255, 247, 0.72);
    padding: 0;
    font-size: 14px;
}
.site-footer .container {
    padding-top: 68px;
    padding-bottom: 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
    gap: 46px;
    padding-bottom: 40px;
}
.footer-brand .logo {
    color: #f0fff6;
}
.footer-brand p {
    font-size: 14px;
    color: rgba(240,255,247,0.52);
    margin: 18px 0 22px;
    max-width: 300px;
    line-height: 1.8;
}
.footer-domain {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: rgba(75, 230, 140, 0.7);
    background: rgba(75,230,140,.1);
    padding: 6px 14px;
    border-radius: var(--radius-tag);
}
.footer-title {
    color: #f0fff6;
    font-size: 15px;
    font-weight: 650;
    margin-bottom: 20px;
    letter-spacing: .4px;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0 0 0.5em;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
    display: inline-flex;
    gap: 8px;
    align-items: baseline;
    color: rgba(240,255,247,0.62);
    transition: color .2s ease, transform .2s ease;
}
.footer-links a:hover { color: var(--signal); transform: translateX(2px); }
.footer-links i {
    font-size: 11px;
    color: var(--signal);
}
.footer-contact li {
    display: flex;
    gap: 8px;
    color: rgba(240,255,247,0.62);
    line-height: 1.7;
}
.footer-contact i {
    color: var(--signal);
    margin-top: 5px;
    font-size: 13px;
}
.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 14px;
    padding: 22px 0 26px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
    color: rgba(240, 255, 247, 0.42);
}

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
    .nav-cn { gap: 20px; }
    .cmd-search { width: 170px; }
    .article-reader { padding: 44px 40px 40px; }
    .cta-box { padding: 44px 36px; }
    .cta-side { flex-basis: 220px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 820px) {
    .header-inner { gap: 10px; min-height: 66px; }
    .nav-cn, .cmd-search { display: none; }
    .btn-download-nav { display: inline-flex; }
    .burger { display: inline-flex; }
    .header-inner.mobile-open { background: var(--bg-card); }
    .header-inner.mobile-open .nav-cn {
        display: flex;
        position: absolute;
        left: 0; right: 0;
        top: 66px;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        background: var(--bg-card);
        border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow-soft);
        padding: 14px 20px 24px;
        z-index: 50;
    }
    .header-inner.mobile-open .nav-cn a {
        display: block;
        width: 100%;
        padding: 12px 6px;
        font-size: 16px;
        border-bottom: 1px solid var(--line);
    }
    .header-inner.mobile-open .nav-cn a::after { display: none; }
    .article-hero { padding: 42px 0 38px; }
    .article-reader { padding: 32px 24px 30px; border-radius: 16px; }
    .article-wrap { padding-top: 48px; }
    .article-hero h1 { font-size: 36px; }
    .article-content-wrap .container, .faq-section .container { padding-inline: 18px; }
    .explore-grid { margin-left: 0; margin-right: 0; }
    .cta-box { flex-direction: column; align-items: flex-start; padding: 38px 26px; margin-bottom: 72px; }
    .cta-side { flex-basis: auto; width: 200px; }
    .cta-box::before { display: none; }
    :root { --space-section: 84px; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .footer-brand p { max-width: 100%; }
}

@media (max-width: 520px) {
    .container { padding-inline: 20px; }
    .article-reader { padding: 26px 18px 24px; }
    .article-hero h1 { font-size: 29px; }
    .article-hero { padding-bottom: 32px; }
    .breadcrumb { margin-bottom: 16px; }
    .meta-line { gap: 12px; font-size: 13px; }
    .btn-download-nav { padding: 9px 14px; }
    .btn-download-nav span { display: none; }
    .article-wrap { padding-top: 32px; }
    .article-hero h1 { letter-spacing: -.3px; }
    .section-head h2 { font-size: 25px; }
    .cta-actions a { width: 100%; justify-content: center; }
    .cta-box { margin-inline: 0; border-radius: 20px; }
    .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}

/* roulang page: category1 */
:root{
  --sand:#f5f2e9;
  --surface:#fffdf7;
  --surface-2:#ece9df;
  --night:#19241f;
  --night-2:#222f29;
  --ink:#1c2b25;
  --muted:#5c6b64;
  --line:rgba(21,39,32,.13);
  --line-light:rgba(255,255,255,.14);
  --signal:#c6f465;
  --signal-2:#aede45;
  --signal-soft:rgba(198,244,101,.14);
  --white:#fff;
  --shadow:0 18px 48px rgba(20,30,25,.07),0 2px 8px rgba(20,30,25,.04);
  --shadow-soft:0 8px 30px rgba(20,30,25,.06);
  --shadow-card:0 1px 2px rgba(15,28,22,.04),0 14px 34px rgba(15,28,22,.08);
  --radius-xs:10px;
  --radius-sm:14px;
  --radius-lg:20px;
  --radius-pill:100px;
  --font: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono: ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink);
  font-family:var(--font);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
input,button,textarea{font-family:inherit;}
button{border:0;cursor:pointer;background:none;}
input:focus,button:focus,a:focus{outline:2px solid rgba(198,244,101,.9);outline-offset:3px;border-radius:4px;}
section{scroll-margin-top:80px;}
.container{max-width:1240px;margin:0 auto;padding:0 28px;}
.grid-container{max-width:1240px;}
.grid-padding-x>.cell{padding-left:.9rem;padding-right:.9rem;}
::selection{background:var(--signal);color:var(--night);}
.mono{font-family:var(--mono);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.16em;
  color:#8f7f3a;text-transform:uppercase;
}
.eyebrow i{font-size:.75rem;}
.eyebrow-light{color:var(--signal);}
.section-space{padding:110px 0;}
a.btn,button.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 22px;font-size:.95rem;font-weight:700;border-radius:var(--radius-pill);
  transition:transform .18s ease,box-shadow .2s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;white-space:nowrap;border:1px solid transparent;
}
a.btn i,button.btn i{color:inherit;}
a.btn:active,button.btn:active{transform:scale(.97);}
a.btn:hover{transform:translateY(-2px);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:48px;
}
.section-head h2{
  font-size:clamp(1.7rem,3vw,2.55rem);
  line-height:1.18;font-weight:800;letter-spacing:-.03em;max-width:680px;margin-top:10px;
}
.section-head .head-desc{max-width:360px;color:var(--muted);line-height:1.8;font-size:.98rem;margin-bottom:6px;}

.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,235,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 32px rgba(15,28,22,.06);}
.nav-inner{
  display:flex;align-items:center;gap:18px;min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;color:var(--night);font-size:1.12rem;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--night);color:var(--signal);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:800;font-size:1.02rem;
}
.nav-cn{
  display:flex;align-items:center;gap:2px;margin:0 auto;
}
.nav-cn a{
  position:relative;padding:8px 13px;font-size:.93rem;font-weight:600;
  color:#34473f;border-radius:10px;transition:color .16s ease,background-color .16s ease;
}
.nav-cn a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:99px;
  background:var(--signal-2);opacity:0;transform:scaleX(.45);transition:opacity .2s ease,transform .2s ease;
}
.nav-cn a:hover{color:var(--ink);background:rgba(20,40,32,.05);}
.nav-cn a.active{color:var(--night);}
.nav-cn a.active::after{opacity:1;transform:scaleX(1);}
.nav-cn a.active{color:#111f19;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:210px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:9px 13px;transition:border-color .16s ease,box-shadow .16s ease,width .2s ease;
}
.command-search:focus-within{border-color:var(--signal-2);box-shadow:0 0 0 4px var(--signal-soft);width:236px;}
.command-search i{color:#829088;font-size:.82rem;flex:0 0 auto;}
.command-search input{
  min-width:0;border:0;background:none;outline:0;width:100%;
  font-size:.85rem;color:var(--ink);padding:0;
}
.command-search input::placeholder{color:#a1aaa5;}
.kbd{
  font-family:var(--mono);font-size:.68rem;color:#78877f;
  background:var(--surface-2);border:1px solid var(--line);border-radius:5px;
  padding:1px 6px;flex:0 0 auto;
}
.btn-nav{background:var(--signal);color:var(--night);border-color:transparent;box-shadow:0 6px 18px rgba(174,222,69,.22);padding-top:9px;padding-bottom:9px;}
.btn-nav:hover{background:#d4fb7d;box-shadow:0 10px 24px rgba(174,222,69,.3);transform:translateY(-2px);}
.nav-toggle{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);display:none;align-items:center;justify-content:center;color:var(--night);}
.nav-toggle .bar{position:relative;width:17px;height:2px;background:var(--night);display:block;border-radius:4px;}
.nav-toggle .bar::before,.nav-toggle .bar::after{content:"";position:absolute;left:0;width:17px;height:2px;background:var(--night);border-radius:4px;transition:transform .2s ease;}
.nav-toggle .bar::before{top:-5px;}
.nav-toggle .bar::after{top:5px;}
.nav-toggle.is-open .bar{background:transparent;}
.nav-toggle.is-open .bar::before{transform:rotate(45deg);top:0;}
.nav-toggle.is-open .bar::after{transform:rotate(-45deg);top:0;}

.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:rgba(247,244,235,.98);
  padding:22px 24px 32px;box-shadow:0 20px 50px rgba(15,28,22,.15);position:fixed;left:0;right:0;top:72px;z-index:79;
}
.mobile-drawer.is-open{display:block;}
.mobile-search{width:100%;margin-bottom:16px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:12px 10px;border-radius:10px;font-weight:700;font-size:.98rem;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a:hover{background:rgba(20,40,32,.06);}
.drawer-nav a.active{background:var(--signal-soft);color:var(--night);}
.mobile-cta{margin-top:22px;display:grid;}
.mobile-cta .btn{width:100%;padding-top:14px;padding-bottom:14px;background:var(--signal);color:var(--night);}

.category-hero{
  background:radial-gradient(circle at 90% 10%,rgba(198,244,101,.12),transparent 33%),var(--night);
  color:#f8f6ef;position:relative;overflow:hidden;padding:112px 0 108px;
}
.category-hero::before{
  content:"9";position:absolute;right:-80px;top:-120px;color:rgba(198,244,101,.045);
  font-family:var(--mono);font-weight:800;font-size:280px;line-height:1;pointer-events:none;
}
.hero-copy{position:relative;z-index:2;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:24px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-pill);color:var(--signal);padding:7px 15px;
  font-size:.8rem;font-weight:700;letter-spacing:.06em;
}
.hero-kicker .pulse{
  width:5px;height:5px;background:var(--signal);border-radius:50%;display:inline-block;
}
.hero-copy h1{
  color:#fff;font-size:clamp(2.4rem,5.5vw,4.3rem);
  line-height:1.07;font-weight:800;letter-spacing:-.05em;
  max-width:720px;
}
.hero-copy h1 .accent{color:var(--signal);font-family:var(--mono);letter-spacing:-.04em;font-weight:800;}
.hero-lead{
  margin-top:26px;max-width:630px;color:rgba(255,255,255,.72);
  font-size:clamp(1rem,1.2vw,1.15rem);line-height:1.9;
}
.hero-actions{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-btn-solid{
  background:var(--signal);color:var(--night);
  box-shadow:0 12px 30px rgba(198,244,101,.22);
}
.hero-btn-solid:hover{background:#d4fb7d;transform:translateY(-2px);}
.hero-btn-ghost{
  background:transparent;color:rgba(255,255,255,.86);
  border-color:rgba(255,255,255,.3);
}
.hero-btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.48);color:#fff;}
.hero-meta{
  margin-top:40px;display:flex;flex-wrap:wrap;gap:18px;
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
}
.hero-meta span{
  display:inline-flex;align-items:center;gap:7px;color:rgba(255,255,255,.58);
  font-family:var(--mono);font-size:.72rem;letter-spacing:.02em;font-weight:500;
}
.hero-meta i{color:var(--signal);font-size:.65rem;}
.hero-visual{position:relative;min-height:380px;}
.hero-bg{
  position:absolute;
  top:35px;right:20px;left:20px;bottom:20px;
  width:calc(100% - 40px);height:calc(100% - 55px);
  object-fit:cover;border-radius:34px;opacity:.28;filter:saturate(1.1) contrast(1.04);
}
.hero-visual::after{
  content:"";position:absolute;inset:35px 20px 20px;border-radius:34px;
  background:linear-gradient(180deg,rgba(14,22,19,.05),rgba(14,22,19,.45));
  z-index:1;
}
.hero-photo-frame{
  position:relative;z-index:2;max-width:520px;margin-left:auto;margin-right:30px;margin-top:50px;
}
.hero-photo-frame img{
  width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:26px;border:1px solid rgba(255,255,255,.18);
  box-shadow:0 40px 90px rgba(0,0,0,.34);
}
.photo-label{
  position:absolute;right:20px;bottom:20px;background:rgba(15,25,20,.88);color:#fff;
  padding:14px 18px;border-radius:var(--radius-sm);
  display:flex;flex-direction:column;border-left:3px solid var(--signal);
}
.photo-label span{color:rgba(255,255,255,.65);font-size:.75rem;letter-spacing:.08em;}
.photo-label strong{color:var(--signal);font-size:1.05rem;font-weight:800;letter-spacing:.02em;}
.hero-9mark{
  position:absolute;z-index:0;right:52px;top:18px;font-family:var(--mono);
  color:rgba(198,244,101,.22);font-size:8rem;font-weight:800;opacity:.3;
}
.breadcrumb-bar{border-bottom:1px solid var(--line);background:rgba(255,253,247,.7);padding:10px 0;}
.breadcrumb-row{display:flex;align-items:center;gap:9px;font-size:.85rem;color:var(--muted);}
.breadcrumb-row a{color:#687972;display:inline-flex;align-items:center;gap:6px;font-weight:600;transition:color .16s ease;}
.breadcrumb-row a:hover{color:var(--night);}
.breadcrumb-row i{font-size:.68rem;color:#a2aba6;}
.breadcrumb-row span{font-weight:600;color:var(--night);}

.guide-band{background:var(--surface);border-bottom:1px solid var(--line);padding:86px 0 92px;}
.guide-item{
  background:var(--sand);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px 30px;height:100%;position:relative;overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.guide-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-soft);border-color:rgba(120,150,50,.3);}
.guide-number{
  font-family:var(--mono);color:#a8c255;font-size:.74rem;font-weight:700;letter-spacing:.03em;
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
}
.guide-number::before{content:"";width:18px;height:2px;background:var(--signal-2);display:inline-block;opacity:.9;}
.guide-item h3{font-size:1.12rem;font-weight:800;margin-bottom:10px;line-height:1.45;letter-spacing:-.01em;}
.guide-item p{color:var(--muted);font-size:.92rem;line-height:1.85;}
.guide-item i.guide-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;background:var(--signal-soft);color:#617a18;font-size:.9rem;
  margin-bottom:20px;
}

.feature-index{padding:104px 0;}
.feature-side{
  background:var(--night);color:#f0f3e9;
  padding:34px 30px 30px;border-radius:26px;position:sticky;top:104px;
  box-shadow:0 32px 70px rgba(15,28,22,.18);
  overflow:hidden;
}
.feature-side::before{content:"9";position:absolute;right:-22px;bottom:-38px;color:rgba(198,244,101,.05);font-family:var(--mono);font-size:170px;font-weight:800;}
.feature-side h2{color:#fff;font-size:1.66rem;line-height:1.3;font-weight:800;letter-spacing:-.03em;margin-top:12px;}
.feature-side>p{margin-top:18px;color:rgba(255,255,255,.65);font-size:.92rem;line-height:1.85;}
.side-list{margin-top:30px;position:relative;z-index:1;}
.side-list li{border-top:1px solid rgba(255,255,255,.12);}
.side-list a{
  display:flex;align-items:center;gap:11px;width:100%;padding:14px 2px;
  color:rgba(255,255,255,.82);font-weight:600;font-size:.88rem;transition:color .16s ease,padding-left .16s ease;
}
.side-list a:hover{color:var(--signal);padding-left:6px;}
.side-list i{color:var(--signal);font-size:.72rem;}
.side-mini{
  margin-top:26px;padding-top:19px;border-top:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.5);font-size:.78rem;line-height:1.8;
}
.side-mini span{color:var(--signal);font-family:var(--mono);}

.view-cards{margin-right:-.9rem;margin-left:-.9rem;}
.view-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:22px;display:flex;flex-direction:column;position:relative;
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.view-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-card);border-color:rgba(126,158,59,.28);}
.view-card .card-media{position:relative;overflow:hidden;background:#e6e5dd;}
.view-card .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease;}
.view-card:hover .card-media img{transform:scale(1.035);}
.card-content{display:flex;flex-direction:column;flex:1;padding:26px 26px 24px;}
.card-label{
  display:flex;align-items:center;gap:10px;margin-bottom:15px;
  font-size:.7rem;font-weight:700;letter-spacing:.09em;
}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  background:var(--signal-soft);color:#486217;border-radius:30px;
  padding:4px 11px;font-weight:700;font-size:.7rem;letter-spacing:.03em;
}
.card-sn{
  font-family:var(--mono);color:#a3aca7;margin-left:auto;font-size:.66rem;letter-spacing:.05em;
}
.card-content h3{
  font-size:1.28rem;line-height:1.5;font-weight:800;letter-spacing:-.02em;color:var(--night);
  margin-bottom:12px;
}
.card-content p{color:var(--muted);font-size:.91rem;line-height:1.9;margin-bottom:18px;}
.text-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:7px;color:#2e4324;
  font-size:.86rem;font-weight:700;
}
.text-link i{transition:transform .18s ease;}
.text-link:hover i{transform:translateX(3px);}
.view-card--horizontal .card-media{flex:0 0 42%;aspect-ratio:auto;min-height:260px;}
.view-card--horizontal{display:grid;grid-template-columns:42% 1fr;}
.view-card--vertical.medium-height .card-media{aspect-ratio:16/11;}
.view-card--vertical{height:100%;min-height:365px;}
.view-card--vertical .card-media{aspect-ratio:16/10;min-height:210px;flex:0 0 auto;}
.view-card-margin{margin-bottom:18px;}
.view-card-last{margin-bottom:0;}
@media (max-width:1023px) and (min-width:641px){
  .view-card--horizontal{grid-template-columns:38% 1fr;}
  .card-content h3{font-size:1.1rem;}
}

.decision-note{
  background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:88px 0;
}
.note-h2 h2{font-size:clamp(1.6rem,3vw,2.35rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;margin-top:10px;}
.direction-list{margin-top:34px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.direction-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.direction-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-soft);}
.direction-item i{
  display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;
  background:var(--night);color:var(--signal);border-radius:10px;margin-bottom:15px;font-size:.78rem;
}
.direction-item strong{display:block;font-size:1rem;font-weight:800;margin-bottom:6px;}
.direction-item span{font-size:.83rem;color:var(--muted);line-height:1.7;display:block;}

.download-lead{padding:100px 0;}
.lead-panel{
  background:var(--night);border-radius:30px;padding:42px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  position:relative;overflow:hidden;
  box-shadow:0 36px 80px rgba(15,28,22,.2);
}
.lead-panel::after{
  content:"9";position:absolute;right:-20px;bottom:-90px;
  color:rgba(198,244,101,.05);font-family:var(--mono);font-size:200px;font-weight:800;pointer-events:none;
}
.lead-panel .lead-copy{position:relative;z-index:1;max-width:700px;}
.lead-panel h2{color:#fff;font-size:clamp(1.55rem,3vw,2.3rem);margin-top:12px;line-height:1.3;letter-spacing:-.03em;}
.lead-panel p{color:rgba(255,255,255,.68);font-size:.95rem;line-height:1.85;margin-top:16px;}
.download-btn{
  background:var(--signal);color:var(--night);flex:0 0 auto;
  box-shadow:0 12px 30px rgba(198,244,101,.18);
}
.download-btn:hover{background:#d8fd82;transform:translateY(-2px);}
.download-btn i{position:relative;top:0;transition:top .18s ease;}
.download-btn:hover i{top:3px;}

.site-footer{background:var(--night);color:rgba(255,255,255,.68);padding:80px 0 26px;overflow:hidden;}
.footer-grid{display:grid;grid-template-columns:1.55fr .9fr 1fr 1.2fr;gap:42px;margin-bottom:42px;}
.footer-brand .logo{color:#fff;font-weight:800;font-size:1.1rem;display:inline-flex;align-items:center;gap:9px;letter-spacing:-.02em;}
.footer-brand p{margin-top:18px;max-width:300px;color:rgba(255,255,255,.55);font-size:.87rem;line-height:1.9;}
.footer-domain{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);color:rgba(255,255,255,.38);
  font-size:.73rem;margin-top:18px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.09);padding:7px 11px;border-radius:10px;letter-spacing:.02em;
}
.footer-title{color:#fff;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;margin-bottom:20px;}
.footer-links li{display:flex;align-items:flex-start;gap:8px;padding:6px 0;}
.footer-links li i{color:var(--signal);font-size:.66rem;margin-top:8px;}
.footer-links a{color:rgba(255,255,255,.6);font-size:.87rem;transition:color .16s ease;}
.footer-links a:hover{color:var(--signal);}
.footer-links.footer-contact li{align-items:flex-start;line-height:1.6;}
.footer-links.footer-contact li i{margin-top:7px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding-top:24px;
  color:rgba(255,255,255,.45);font-size:.78rem;
}
.footer-beian{font-family:var(--mono);letter-spacing:.01em;}

@media (max-width:900px){
  .nav-cn{display:none;}
  .command-search{display:none;}
  .btn-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{top:72px;padding-bottom:30px;}
  .grid-container{max-width:100%;}
  .container{padding-left:20px;padding-right:20px;}
  .category-hero{padding:82px 0 78px;}
  .hero-visual{min-height:300px;margin-top:44px;}
  .hero-photo-frame{max-width:100%;margin-right:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}

@media (max-width:640px){
  body{line-height:1.65;}
  .section-space{padding:68px 0;}
  .category-hero{padding:64px 0 62px;}
  .category-hero::before{display:none;}
  .hero-copy h1{font-size:2rem;}
  .hero-actions .btn{width:100%;padding:15px 20px;white-space:normal;}
  .hero-meta{flex-direction:column;align-items:flex-start;gap:10px;}
  .hero-meta span{font-size:.72rem;}
  .hero-bg{top:20px;right:10px;left:10px;height:calc(100% - 40px);width:calc(100% - 20px);}
  .hero-visual::after{inset:20px 10px 10px;}
  .hero-photo-frame{margin-top:36px;}
  .photo-label{right:12px;bottom:12px;padding:11px 14px;}
  .photo-label strong{font-size:.88rem;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:1.56rem;}
  .feature-index{padding:68px 0;}
  .feature-side{position:relative;top:auto;margin-bottom:26px;padding:28px 22px;}
  .feature-side h2{font-size:1.4rem;}
  .view-cards{margin-right:0;margin-left:0;}
  .view-cards .cell{padding-left:0;padding-right:0;}
  .view-card--horizontal{grid-template-columns:1fr;}
  .view-card--horizontal .card-media{min-height:200px;}
  .view-card{box-shadow:none;border-radius:18px;}
  .card-content{padding:22px;}
  .card-content h3{font-size:1.15rem;}
  .decision-note{padding:64px 0;}
  .direction-list{grid-template-columns:1fr;}
  .lead-panel{flex-direction:column;align-items:flex-start;padding:30px 22px;}
  .download-btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{align-items:flex-start;flex-direction:column;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root {
    --bg: #f3efe6;
    --surface: #fbf8f1;
    --white: #fffdfa;
    --ink: #16281f;
    --muted: #617267;
    --subtle: #7e8c82;
    --border: rgba(18, 43, 31, .12);
    --forest: #0f251c;
    --forest-2: #16332a;
    --line-light: rgba(255, 255, 255, .12);
    --signal: #ace02f;
    --signal-deep: #8fc51c;
    --signal-soft: #e6f8c5;
    --danger: #b4573f;
    --shadow-soft: 0 16px 42px rgba(19, 46, 31, .09);
    --shadow-float: 0 24px 58px rgba(19, 46, 31, .15);
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --pill: 999px;
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
    --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    font-size: 16px;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button, input { font: inherit; }
  ul, ol, p, h1, h2, h3, h4, figure { margin: 0; padding: 0; }
  li, ul { list-style: none; }

  h1, h2, h3, h4 { line-height: 1.3; letter-spacing: -0.01em; }

  .container {
    width: 100%;
    max-width: 1260px;
    margin: 0 auto;
    padding-left: clamp(20px, 3.4vw, 40px);
    padding-right: clamp(20px, 3.4vw, 40px);
  }

  .svg-inline--fa { width: 1em; height: 1em; }

  .mono { font-family: var(--font-mono); letter-spacing: .02em; }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .14em;
    color: var(--signal-deep);
    background: var(--signal-soft);
    padding: 5px 13px;
    border-radius: var(--pill);
    text-transform: uppercase;
  }

  .section-sec { padding: 70px 0 10px; }
  .section-title { font-size: clamp(1.7rem, 3vw, 2.25rem); line-height: 1.25; font-weight: 750; letter-spacing: -.02em; }
  .section-subtitle { margin-top: 12px; color: var(--muted); font-size: 16px; max-width: 720px; line-height: 1.85; }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 13px 25px;
    border-radius: var(--pill);
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
    cursor: pointer;
    transition: transform .2s cubic-bezier(.2,.7,.3,1), box-shadow .2s, background .2s, border-color .2s;
    -webkit-tap-highlight-color: transparent;
  }
  .btn:focus-visible { outline: 3px solid rgba(172, 224, 47, .5); outline-offset: 3px; }
  .btn .fa-download { transition: transform .2s ease; }
  .btn:hover .fa-download { transform: translateY(2px); }
  .btn-primary {
    background: var(--signal);
    color: #17290f;
    box-shadow: 0 10px 26px rgba(140, 197, 28, .25);
  }
  .btn-primary:hover { background: #bff04b; transform: translateY(-2px); box-shadow: 0 14px 32px rgba(140, 197, 28, .33); }
  .btn-primary:active { transform: scale(.97); }
  .btn-solid-dark { background: var(--forest); color: #f3fff2; border-color: var(--forest); }
  .btn-solid-dark:hover { background: var(--forest-2); transform: translateY(-2px); }
  .btn-ghost-dark {
    background: transparent;
    color: #eafffb;
    border-color: rgba(234, 255, 235, .25);
  }
  .btn-ghost-dark:hover { background: rgba(255,255,255,.05); border-color: rgba(234,255,235,.42); transform: translateY(-2px); }
  .btn-small { padding: 9px 18px; font-size: 13.5px; min-height: 38px; }
  .btn .btn-sub { display: block; font-size: 11px; font-weight: 500; opacity: .75; line-height: 1.2; font-family: var(--font-mono); }

  .text-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--signal-deep);
    font-weight: 700;
    font-size: 14px;
    transition: gap .2s ease;
  }
  .text-btn:hover { gap: 11px; color: #6c9a0e; }

  .link-dark { color: var(--forest); font-weight: 650; }
  .link-dark:hover { color: var(--signal-deep); }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(248, 244, 236, .94);
    height: 72px;
  }
  .site-header.is-scrolled { box-shadow: 0 6px 28px rgba(15, 37, 28, .06); }
  .header-row { display: flex; align-items: center; height: 72px; gap: 22px; }
  .brand-logo { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); flex-shrink: 0; }
  .brand-mark { position: relative; display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 13px; background: var(--forest); color: var(--signal); font: 800 14px var(--font-mono); letter-spacing: .5px; }
  .brand-mark::after { content: ""; position: absolute; inset: 3px; border-radius: 9px; border: 1px solid rgba(172,224,47,.25); }
  .brand-name { font-weight: 740; font-size: 18px; letter-spacing: -.01em; white-space: nowrap; }

  .nav-cn { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
  .nav-cn a {
    position: relative;
    color: var(--muted);
    font-size: 15px;
    font-weight: 560;
    padding: 10px 14px;
    margin: 0 2px;
    transition: color .2s ease;
  }
  .nav-cn a span.nav-active-dot { position: absolute; left: 50%; bottom: 2px; width: 4px; height: 4px; border-radius: 50%; background: var(--signal-deep); transform: translateX(-50%) scale(0); transition: transform .2s; }
  .nav-cn a:hover, .nav-cn a.active { color: var(--ink); }
  .nav-cn a.active { font-weight: 720; }
  .nav-cn a.active .nav-active-dot, .nav-cn a:hover .nav-active-dot { transform: translateX(-50%) scale(1); }
  .nav-cn a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    border-radius: 3px;
    background: var(--signal-deep);
    transform: translateX(-50%);
    transition: width .25s ease;
  }
  .nav-cn a.active::after, .nav-cn a:hover::after { width: 18px; }

  .header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
  .header-search-form { position: relative; }
  .header-search-form .search-box {
    width: 210px;
    height: 40px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--white);
    padding: 0 62px 0 36px;
    font-size: 13px;
    color: var(--ink);
    transition: border .2s, box-shadow .2s;
  }
  .header-search-form .search-box:focus { outline: none; border-color: var(--signal-deep); box-shadow: 0 0 0 3px rgba(172,224,47,.18); }
  .header-search-form > i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); font-size: 12px; color: var(--subtle); pointer-events: none; }
  .header-search-form .search-key {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    border: 1px solid var(--border);
    background: #f2ede3;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    padding: 2px 5px;
    border-radius: 6px;
    line-height: 1.4;
  }
  .header-download-btn { min-height: 42px; padding: 9px 19px; }

  .menu-burger {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    background: var(--white);
    border-radius: 12px;
    color: var(--ink);
    font-size: 16px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }
  .menu-burger:focus-visible { outline: 2px solid var(--signal-deep); }

  .mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 92;
    width: min(354px, 90vw);
    background: var(--surface);
    padding: 84px 30px 34px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transform: translateX(103%);
    transition: transform .3s cubic-bezier(.2,.7,.3,1);
    visibility: hidden;
    box-shadow: -30px 0 70px rgba(0,0,0,.14);
  }
  .mobile-menu a.m-nav-link { display: flex; align-items: center; justify-content: space-between; font-size: 17px; font-weight: 640; color: var(--ink); padding: 10px 0; border-bottom: 1px solid var(--border); }
  .mobile-menu a.m-nav-link .comm { color: var(--subtle); font-size: 12px; font-family: var(--font-mono); }
  .mobile-menu a.m-nav-link.active { color: var(--signal-deep); }
  .mobile-menu .mobile-close-btn { position: absolute; right: 20px; top: 22px; width: 38px; height: 38px; border: 1px solid var(--border); background: var(--white); border-radius: 50%; font-size: 15px; color: var(--ink); cursor: pointer; }
  .mobile-search-form { margin-top: 14px; margin-bottom: 10px; position: relative; }
  .mobile-search-form input {
    width: 100%;
    height: 46px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--white);
    padding: 0 42px 0 16px;
    font-size: 14.5px;
    color: var(--ink);
  }
  .mobile-search-form input:focus { outline: none; border-color: var(--signal-deep); }
  .mobile-search-form i { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); color: var(--muted); }
  .menu-scrim { position: fixed; inset: 0; background: rgba(15,37,28,.42); z-index: 91; opacity: 0; visibility: hidden; transition: opacity .3s; }
  .menu-open .mobile-menu { transform: translateX(0); visibility: visible; }
  .menu-open .menu-scrim { opacity: 1; visibility: visible; }
  .site-header.menu-open { z-index: 95; }

  .page-hero {
    position: relative;
    overflow: hidden;
    background:
      linear-gradient(118deg, rgba(13, 35, 28, .94) 0%, rgba(18, 54, 40, .88) 53%, rgba(14, 43, 31, .86) 100%),
      url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    color: #eafff2;
  }
  .page-hero::after {
    content: "HELP";
    position: absolute;
    right: -1%;
    bottom: -30px;
    font-family: var(--font-mono);
    font-weight: 800;
    font-size: clamp(150px, 24vw, 280px);
    letter-spacing: -.04em;
    color: rgba(255,255,255,.035);
    line-height: 1;
    pointer-events: none;
    z-index: 0;
  }
  .hero-inner { position: relative; z-index: 2; padding: 64px 0 72px; }

  .hero-bread { margin-bottom: 26px; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; color: rgba(230,255,230,.68); font-size: 13.5px; }
  .hero-bread a:hover { color: var(--signal); }
  .hero-bread i { font-size: 11px; opacity: .7; }

  .hero-grid { display: grid; gap: 42px; grid-template-columns: minmax(0, 1.55fr) minmax(280px, .9fr); align-items: center; }
  .hero-title { font-size: clamp(2.05rem, 5vw, 3.3rem); line-height: 1.16; font-weight: 820; letter-spacing: -.03em; margin-bottom: 20px; max-width: 760px; }
  .hero-title .accent-line { display: flex; align-items: center; gap: 15px; flex-wrap: wrap; }
  .hero-title .accent-hero { display: inline-flex; font-family: var(--font-mono); font-size: .52em; font-weight: 700; align-items: center; color: var(--signal); background: rgba(172,224,47,.1); border: 1px solid rgba(172,224,47,.22); padding: 7px 14px; border-radius: 999px; letter-spacing: .1em; }

  .hero-annotation {
    color: rgba(235,252,238,.68);
    font-size: 16.5px;
    line-height: 1.9;
    max-width: 650px;
  }
  .hero-tags { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 9px; }
  .hero-tag { display: inline-flex; align-items: center; gap: 7px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: var(--pill); padding: 7px 15px; font-size: 13.5px; font-weight: 550; color: #ddffd6; }
  .hero-tag i { color: var(--signal); font-size: 12px; }

  .hero-guide-card {
    padding: 24px;
    color: #f2ffe6;
    border-radius: 20px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.13);
    backdrop-filter: none;
  }
  .guide-card-label { font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; color: var(--signal); margin-bottom: 14px; font-weight: 700; }
  .guide-card-list { display: grid; gap: 0; }
  .guide-card-list a { display: flex; align-items: center; gap: 11px; padding: 11px 2px; border-bottom: 1px solid rgba(255,255,255,.1); color: rgba(240,255,245,.86); font-size: 14.5px; font-weight: 550; transition: color .2s ease, padding .2s ease; }
  .guide-card-list a:last-child { border-bottom: none; }
  .guide-card-list a i { color: var(--signal); font-size: 11px; opacity: .85; }
  .guide-card-list a:hover { color: #fffbeb; padding-left: 10px; }
  .guide-card-list .count { margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: rgba(255,255,255,.5); }

  .docs-layout { padding: 76px 0 22px; }
  .docs-toc-wrap { position: relative; }
  .docs-toc { position: sticky; top: 96px; border: 1px solid var(--border); background: var(--surface); border-radius: 20px; padding: 18px 16px; box-shadow: var(--shadow-soft); }
  .toc-intro { display: flex; align-items: center; justify-content: space-between; padding: 4px 8px 12px; }
  .toc-intro span { font-family: var(--font-mono); font-size: 12px; color: var(--muted); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
  .toc-intro small { font-size: 11px; color: var(--subtle); }
  .docs-toc a.toc-anchor { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 14px; font-weight: 620; padding: 11px 12px; border-radius: 12px; transition: color .2s, background .2s; }
  .docs-toc a.toc-anchor i { width: 20px; text-align: center; font-size: 13px; color: var(--subtle); transition: color .2s; }
  .docs-toc a.toc-anchor .toc-num { margin-left: auto; font-family: var(--font-mono); font-size: 10.5px; color: var(--subtle); }
  .docs-toc a.toc-anchor:hover { background: var(--white); color: var(--ink); }
  .docs-toc a.toc-anchor.is-active { background: var(--signal-soft); color: #25460f; }
  .docs-toc a.toc-anchor.is-active i { color: var(--signal-deep); }
  .toc-mini-help { margin-top: 16px; border-top: 1px solid var(--border); padding: 14px 12px 4px; }
  .toc-mini-help p { font-size: 13px; line-height: 1.7; color: var(--muted); margin-bottom: 8px; }

  .docs-content-col { min-width: 0; }
  .section-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 3.6vw, 48px);
    margin-bottom: 34px;
    box-shadow: var(--shadow-soft);
  }
  .section-panel-head { margin-bottom: 27px; }
  .part-label { display: flex; align-items: baseline; gap: 14px; margin-bottom: 10px; }
  .part-label .part-code { font-family: var(--font-mono); font-size: 13px; font-weight: 800; letter-spacing: .12em; color: var(--signal-deep); background: var(--signal-soft); border-radius: 999px; padding: 3px 12px; }
  .part-label .part-title { font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
  .section-panel h2 { font-size: clamp(1.55rem, 2.5vw, 2rem); font-weight: 760; line-height: 1.25; letter-spacing: -.02em; }
  .section-panel .panel-intro { color: var(--muted); font-size: 15px; line-height: 1.9; max-width: 720px; margin-top: 14px; }

  .flow-wrap { display: grid; gap: 16px; margin: 26px 0 6px; }
  .flow-step { display: grid; grid-template-columns: 58px 1fr; gap: 18px; align-items: start; padding: 17px; background: var(--white); border: 1px solid var(--border); border-radius: 16px; transition: box-shadow .25s ease, transform .25s ease; }
  .flow-step:hover { box-shadow: 0 13px 32px rgba(19,46,31,.11); transform: translateY(-2px); }
  .step-badge { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--forest); color: var(--signal); font-weight: 800; font-size: 17px; font-family: var(--font-mono); margin-top: 3px; }
  .step-body h3 { font-size: 17.5px; font-weight: 740; margin-bottom: 7px; }
  .step-body p { font-size: 14.5px; line-height: 1.85; color: var(--muted); }
  .step-note { background: #f1efe7; border-left: 3px solid var(--signal-deep); border-radius: 0 10px 10px 0; padding: 9px 14px; display: flex; gap: 10px; font-size: 13.5px; color: #4d5b52; margin-top: 12px; align-items: flex-start; }
  .step-note i { color: var(--signal-deep); font-size: 13px; margin-top: 5px; }

  .env-grid { display: grid; gap: 22px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 16px; }
  .env-card { background: var(--white); border-radius: 16px; border: 1px solid var(--border); overflow: hidden; }
  .env-card-flag { display: flex; align-items: center; justify-content: space-between; padding: 12px 19px; font-weight: 720; font-size: 14.5px; }
  .env-card-flag .flag-icon { width: 32px; height: 32px; border-radius: 11px; display: grid; place-items: center; }
  .flag-min { background: #eee2d5; color: #a46c41; }
  .flag-soft { background: var(--signal-soft); color: var(--signal-deep); }
  .env-card-flag em { font-style: normal; font-family: var(--font-mono); font-size: 11.5px; color: var(--subtle); }
  .env-table { width: 100%; font-size: 14px; border-collapse: collapse; }
  .env-table tr { border-bottom: 1px solid var(--border); }
  .env-table tr:last-child { border-bottom: none; }
  .env-table td, .env-table th { padding: 12px 19px; text-align: left; vertical-align: top; }
  .env-table th { font-size: 13px; color: var(--subtle); font-weight: 500; width: 31%; }
  .env-table td { color: var(--ink); font-weight: 580; line-height: 1.7; }

  .edition-row {
    display: grid;
    gap: 0;
    margin-top: 12px;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    background: var(--white);
  }
  .edition-item { display: grid; grid-template-columns: 118px 1fr auto; gap: 20px; align-items: center; padding: 17px 22px; border-bottom: 1px solid var(--border); transition: background .2s; }
  .edition-item:last-child { border-bottom: none; }
  .edition-item:hover { background: #f8f4eb; }
  .edition-icon { display: inline-flex; align-items: center; gap: 8px; }
  .edition-icon .icon-square { width: 34px; height: 34px; border-radius: 10px; background: var(--forest); color: var(--signal); display: grid; place-items: center; font-size: 14px; }
  .edition-name { font-weight: 740; font-size: 15px; }
  .edition-job { color: var(--subtle); font-size: 14px; line-height: 1.7; }
  .edition-arrow { width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 50%; display: grid; place-items: center; color: var(--signal-deep); transition: all .2s; }
  .edition-item:hover .edition-arrow { background: var(--signal); border-color: var(--signal); color: var(--forest); }

  .media-asset {
    border-radius: 16px;
    overflow: hidden;
    background: #ede6da;
    position: relative;
    margin: 22px 0 4px;
  }
  .media-asset img { width: 100%; aspect-ratio: 16/8.4; object-fit: cover; }
  .media-asset .media-caption { position: absolute; left: 10px; bottom: 10px; background: rgba(15,37,28,.78); color: #e9ffe4; font-size: 12px; font-weight: 600; padding: 6px 11px; border-radius: 999px; letter-spacing: .02em; max-width: 90%; }

  .accordion-custom { background: var(--white); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; margin-top: 18px; }
  .accordion-custom .accordion-item { border-bottom: 1px solid var(--border); margin: 0; padding: 0; position: relative; }
  .accordion-custom .accordion-item:last-child { border-bottom: none; }
  .accordion-custom .accordion-title { color: var(--ink); font-size: 16px; font-weight: 660; line-height: 1.5; padding: 18px 48px 18px 20px; white-space: normal; border: none; background: transparent; display: flex; align-items: center; justify-content: space-between; }
  .accordion-custom .accordion-title::after { content: "\f067"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 14px; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); color: var(--signal-deep); width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 50%; background: #f8f6ef; transition: all .25s ease; }
  .accordion-custom .accordion-item.is-active > .accordion-title::after { content: "\f068"; transform: translateY(-50%) rotate(180deg); background: var(--signal); border-color: var(--signal); color: var(--forest); }
  .accordion-custom .accordion-title:hover { background: rgba(246,244,239,.6); }
  .accordion-custom .accordion-content { padding: 0 20px 20px; font-size: 14.5px; color: var(--muted); line-height: 1.88; background: transparent; border: none; }
  .accordion-custom .accordion-content .fa-solid { color: var(--signal-deep); margin-right: 7px; font-size: 12px; }
  .accordion-custom .accordion-content[aria-hidden="true"] { display: none; }

  .advice-list { display: grid; gap: 15px; margin-top: 10px; }
  .advice-item { display: grid; grid-template-columns: 32px 1fr; align-items: start; gap: 13px; background: var(--white); border: 1px solid var(--border); border-radius: 15px; padding: 16px 18px; }
  .advice-badge { width: 30px; height: 30px; border-radius: 10px; display: grid; place-items: center; background: var(--signal-soft); color: var(--signal-deep); font-size: 12px; }
  .advice-content { min-width: 0; }
  .advice-content h3 { font-size: 15px; font-weight: 750; margin-bottom: 4px; }
  .advice-content p { font-size: 14px; color: var(--muted); line-height: 1.7; }

  .cta-strip {
    margin: 48px 0 0;
    border-radius: 24px;
    padding: 46px 44px;
    background: linear-gradient(130deg, rgba(15,37,28,.96), rgba(26,57,42,.92)), url('/assets/images/backpic/back-1.png') center/cover;
    color: #eafff2;
    position: relative;
    overflow: hidden;
  }
  .cta-strip::after { content: "9j"; position: absolute; right: 26px; bottom: -44px; font-size: 170px; font-weight: 750; font-family: var(--font-mono); color: rgba(172,224,47,.08); line-height: 1; pointer-events: none; }
  .cta-strip .cta-copy { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
  .cta-strip h2 { font-size: clamp(1.5rem, 2.5vw, 2.15rem); font-weight: 780; letter-spacing: -.02em; line-height: 1.3; }
  .cta-strip p { color: rgba(234,255,233,.72); margin-top: 8px; font-size: 15px; max-width: 500px; }
  .cta-btns { display: flex; gap: 12px; flex-wrap: wrap; }

  .faq-mini-cta { text-align: center; font-size: 13.5px; color: var(--muted); margin-top: 32px; }

  .site-footer {
    margin-top: 76px;
    background: var(--forest);
    color: #dce9dd;
    padding: 62px 0 26px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 44px;
  }
  .footer-brand .logo { display: flex; align-items: center; gap: 11px; color: #edffe8; font-size: 20px; font-weight: 780; }
  .logo .logo-mark { width: 36px; height: 36px; border-radius: 12px; background: #253c30; color: var(--signal); display: grid; place-items: center; font-family: var(--font-mono); font-size: 13px; }
  .footer-brand p { color: rgba(220,233,221,.66); font-size: 13.5px; line-height: 1.8; margin: 19px 0 14px; max-width: 320px; }
  .footer-domain { font-family: var(--font-mono); font-size: 12px; color: var(--signal); background: rgba(172,224,47,.08); border-radius: 999px; padding: 5px 12px; display: inline-flex; align-items: center; gap: 7px; }
  .footer-title { font-size: 14px; letter-spacing: .12em; color: #f3fff0; font-weight: 750; margin-bottom: 14px; }
  .footer-links { display: grid; gap: 10px; }
  .footer-links li { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: rgba(220,233,221,.74); }
  .footer-links i { color: var(--signal); font-size: 11px; width: 10px; }
  .footer-links a { transition: color .2s ease, padding-left .2s ease; }
  .footer-links a:hover { color: #fffbeb; padding-left: 3px; }
  .footer-contact li { font-size: 13px; color: rgba(220,233,221,.6); justify-content: flex-start; align-items: flex-start; }
  .footer-contact li i { margin-top: 5px; }
  .footer-bottom { border-top: 1px solid var(--line-light); margin-top: 44px; padding-top: 20px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: rgba(220,233,221,.45); }
  .footer-beian { color: rgba(220,233,221,.35); font-family: var(--font-mono); }

  @media (max-width: 1023px) {
    .nav-cn { display: none; }
    .header-search-form { display: none; }
    .header-download-btn { display: inline-flex; }
    .menu-burger { display: inline-flex; }
    .hero-grid { grid-template-columns: 1fr; gap: 26px; }
    .hero-guide-card { max-width: 600px; }
    .docs-layout { padding-top: 52px; }
    .docs-toc { position: sticky; top: 90px; margin-bottom: 16px; z-index: 5; }
    .docs-content-col .cell .section-panel:first-child { margin-top: 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  }

  @media (max-width: 767px) {
    body { font-size: 15px; }
    .edition-item { grid-template-columns: 1fr; gap: 7px; padding: 16px 18px; }
    .edition-item .edition-arrow { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-brand p { max-width: 100%; }
    .cta-strip { padding: 34px 24px; }
  }

  @media (max-width: 639px) {
    .section-panel { padding: 24px 20px; }
    .flow-step { grid-template-columns: 1fr; padding-bottom: 18px; }
    .step-badge { width: 44px; height: 44px; }
    .env-grid { grid-template-columns: 1fr; row-gap: 18px; }
    .hero-inner { padding: 48px 0 52px; }
    .page-hero .hero-title { font-size: 2.05rem; }
    .cta-strip h2 { font-size: 1.6rem; }
    .header-download-btn span.btn-txt { display: none; }
    .header-download-btn { width: 42px; height: 42px; padding: 0; border-radius: 13px; }
    .part-label { align-items: center; flex-wrap: wrap; }
    .section-panel h2 { font-size: 1.6rem; }

    .btn { min-height: 44px; }
    .cta-btns a { flex: 1 1 100%; min-height: 46px; }
    .docs-toc { padding: 14px 12px; }
  }

  .reveal-element { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
  .reveal-element.in-view { opacity: 1; transform: translateY(0); }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal-element { opacity: 1; transform: none; }
  }

/* roulang page: category3 */
:root{
  --bg:#f5f1e9;
  --bg-soft:#faf7f0;
  --card:#fffdf8;
  --ink:#1c2d27;
  --ink-2:#29443b;
  --muted:#5e7067;
  --line:rgba(24,58,48,.12);
  --forest:#0e2d25;
  --forest-2:#164238;
  --accent:#b9e94c;
  --accent-2:#d3f77a;
  --accent-ink:#1d2f21;
  --danger:#b9705c;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 6px 18px rgba(23,43,36,.06);
  --shadow-lg:0 24px 64px rgba(20,44,35,.14);
  --mono:ui-monospace,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --transition:all .2s cubic-bezier(.215,.61,.355,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:var(--transition);}
p{margin:0 0 1em;}
h1,h2,h3,h4,h5,h6{margin:0 0 .45em;line-height:1.25;font-weight:700;color:var(--ink);}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
::selection{background:rgba(185,233,76,.32);color:var(--ink);}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px;}

.grid-container{max-width:1240px;padding-left:22px;padding-right:22px;}
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,240,.96);
  box-shadow:0 1px 0 rgba(24,58,48,.07),0 12px 34px rgba(29,48,40,.04);
}
.header-inner{
  min-height:72px;
  display:flex;
  align-items:center;
  gap:22px;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:1.18rem;
  color:var(--ink);
  letter-spacing:.01em;
  white-space:nowrap;
}
.logo-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--forest);
  color:var(--accent);
  border-radius:10px;
  font-family:var(--mono);
  font-size:.88rem;
  font-weight:800;
  letter-spacing:-.06em;
  box-shadow:inset 0 0 0 1px rgba(185,233,76,.3);
}
.nav-cn{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1;
  min-width:0;
}
.nav-cn a{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 15px;
  border-radius:999px;
  font-size:.94rem;
  font-weight:600;
  color:var(--muted);
  position:relative;
  background:transparent;
}
.nav-cn a::after{
  content:"";
  position:absolute;
  left:18px;right:18px;bottom:4px;
  height:2px;border-radius:2px;
  background:var(--forest);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .24s ease;
}
.nav-cn a:hover{color:var(--ink);background:rgba(14,45,37,.05);}
.nav-cn a:hover::after{transform:scaleX(1);}
.nav-cn a.active{color:var(--forest);background:rgba(185,233,76,.14);}
.nav-cn a.active::after{transform:scaleX(1);background:var(--forest);}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
}
.search-field{
  position:relative;
  display:flex;
  align-items:center;
  width:220px;
  height:42px;
  border:1px solid rgba(24,58,48,.16);
  border-radius:999px;
  background:var(--card);
  padding:0 12px 0 14px;
  transition:var(--transition);
}
.search-field:focus-within{
  border-color:var(--forest-2);
  box-shadow:0 0 0 3px rgba(185,233,76,.28);
}
.search-field .fas{
  font-size:.85rem;
  color:var(--muted);
  margin-right:8px;
}
.search-field input{
  width:100%;
  border:0;outline:none;
  background:transparent;
  font-size:.9rem;
  color:var(--ink);
}
.search-field input::placeholder{color:#9ca9a1;}
.kbd-hint{
  font-family:var(--mono);
  font-size:.72rem;
  border:1px solid rgba(24,58,48,.14);
  border-bottom-width:2px;
  border-radius:5px;
  padding:1px 6px;
  color:var(--muted);
  background:#f1ede4;
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  align-items:center;justify-content:center;
  border:1px solid rgba(24,58,48,.14);
  border-radius:12px;
  background:var(--card);
  color:var(--forest);
  cursor:pointer;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:46px;
  padding:0 24px;
  border-radius:999px;
  font-weight:700;
  font-size:.95rem;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--transition);
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:scale(.97);}
.btn .fas,.btn .far{transition:transform .2s ease;}
.btn-download .fas{font-size:.92rem;}
.btn-download:hover .fas{transform:translateY(3px);}
.btn-accent{
  background:var(--accent);
  color:var(--accent-ink);
}
.btn-accent:hover{
  background:var(--accent-2);
  box-shadow:0 14px 30px rgba(116,153,53,.28);
}
.btn-forest{
  background:var(--forest);
  color:#eff9e9;
}
.btn-forest:hover{
  background:var(--forest-2);
  box-shadow:0 16px 34px rgba(14,45,37,.22);
}
.btn-ghost{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.34);
  color:#f5fff4;
}
.btn-ghost:hover{
  background:rgba(255,255,255,.13);
  border-color:rgba(255,255,255,.62);
}
.btn-outline{
  background:transparent;
  border-color:rgba(24,58,48,.18);
  color:var(--ink);
}
.btn-outline:hover{
  border-color:var(--forest);
  background:rgba(14,45,37,.05);
}
.btn-sm{
  min-height:38px;
  padding:0 18px;
  font-size:.87rem;
}
.btn-lg{
  min-height:54px;
  padding:0 32px;
  font-size:1.02rem;
}
.text-arrow{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-weight:700;
  color:var(--forest);
}
.text-arrow .fas{font-size:.78rem;margin-top:1px;}
.text-arrow:hover{gap:11px;color:var(--forest-2);}

.page-hero{
  position:relative;
  color:#f7fff2;
  padding:88px 0 92px;
  overflow:hidden;
  background-color:var(--forest);
  background-image:linear-gradient(105deg,rgba(12,43,34,.97) 18%,rgba(15,49,38,.86) 60%,rgba(20,63,47,.68)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.page-hero h1{
  color:#f7fff2;
  max-width:900px;
}
.version-hero .lead{
  color:#d9e9d4;
  font-size:1.12rem;
  max-width:680px;
  line-height:1.9;
}
.breadcrumb-cn{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:18px;
  color:rgba(224,245,211,.78);
  font-size:.87rem;
}
.breadcrumb-cn a{color:rgba(224,245,211,.9);}
.breadcrumb-cn a:hover{color:var(--accent);}
.hero-monoline{
  display:flex;
  flex-wrap:wrap;
  gap:12px 22px;
  margin:28px 0 38px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);
  color:rgba(233,252,225,.76);
  font-family:var(--mono);
  font-size:.83rem;
}
.hero-monoline span{display:inline-flex;align-items:center;gap:9px;}
.hero-monoline .dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
}

.hero-note-card{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.17);
  border-radius:var(--radius-lg);
  padding:28px 26px;
  backdrop-filter:none;
  box-shadow:0 18px 50px rgba(3,20,13,.2);
}
.hero-note-card .note-title{
  display:flex;
  align-items:center;
  gap:11px;
  color:#f4ffe7;
  font-weight:800;
  margin-bottom:8px;
}
.hero-note-card .note-title i{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--accent);
  color:var(--accent-ink);
  font-size:.95rem;
}
.hero-note-card p{
  color:#d3e5ce;
  font-size:.92rem;
  margin-bottom:18px;
}

.section{padding:88px 0;}
.section-soft{
  background:var(--bg-soft);
}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:.8rem;
  font-weight:700;
  color:var(--forest);
  letter-spacing:.08em;
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-label::before{
  content:"";
  width:9px;height:9px;border-radius:3px;
  background:var(--accent);
}
.section-heading h2{
  font-size:clamp(1.8rem,3.5vw,2.6rem);
  letter-spacing:-.02em;
}
.section-heading .section-desc{
  max-width:680px;
  color:var(--muted);
  font-size:1rem;
  margin-top:10px;
}

.version-index-layout{
  display:grid;
  grid-template-columns:minmax(280px,330px) 1fr;
  gap:42px;
  align-items:start;
}
.sticky-side{position:sticky;top:98px;}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:26px 24px;
}
.side-card + .side-card{margin-top:22px;}
.side-card h2{
  font-size:1.17rem;
  margin-bottom:6px;
  letter-spacing:0;
}
.side-card > p{
  color:var(--muted);
  font-size:.89rem;
  line-height:1.7;
  margin-bottom:18px;
}
.quick-note-list{
  list-style:none;
  padding:0;
  margin:0;
}
.quick-note-list li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:.9rem;
  color:var(--ink-2);
  font-weight:500;
}
.quick-note-list li:last-child{border-bottom:0;}
.quick-note-list .mini-icon{
  width:32px;height:32px;
  flex:0 0 32px;
  border-radius:9px;
  background:rgba(185,233,76,.2);
  color:var(--forest);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.82rem;
}
.side-img{
  margin-top:18px;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
}
.side-img img{width:100%;height:auto;}
.side-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:14px 4px 0;
  font-weight:700;
  font-size:.9rem;
}

.version-timeline{
  position:relative;
  padding-top:6px;
}
.timeline-intro{
  font-size:.92rem;
  color:var(--muted);
  margin-bottom:28px;
}
.timeline-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid transparent;
  border-radius:var(--radius-md);
  padding:26px 28px 24px;
  margin-bottom:24px;
  box-shadow:0 4px 20px rgba(25,46,38,.04);
  transition:var(--transition);
}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-38px;
  top:36px;
  width:13px;height:13px;
  border-radius:50%;
  background:var(--accent);
  border:3px solid var(--bg);
  box-shadow:0 0 0 2px rgba(14,45,37,.18);
}
.version-timeline::before{
  content:"";
  position:absolute;
  left:-31px;
  top:12px;
  bottom:12px;
  width:2px;
  background:rgba(23,62,48,.14);
}
.timeline-item:hover{
  border-color:rgba(24,58,48,.2);
  box-shadow:var(--shadow-sm);
  transform:translateY(-2px);
}
.timeline-item.current{
  border-left-color:var(--accent);
  background:linear-gradient(180deg,#fffdf8,#faffef);
}
.timeline-top{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 14px;
  margin-bottom:12px;
}
.timeline-date{
  font-family:var(--mono);
  font-size:.89rem;
  color:var(--muted);
  font-weight:700;
}
.timeline-start,.rev-badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-size:.72rem;
  font-weight:800;
  padding:3px 10px;
  border-radius:999px;
  background:rgba(14,45,37,.06);
  color:var(--ink-2);
  letter-spacing:.02em;
  text-transform:uppercase;
  font-family:var(--mono);
}
.timeline-item.current .timeline-start{
  background:var(--accent);
  color:var(--accent-ink);
  box-shadow:0 4px 12px rgba(185,233,76,.32);
}
.timeline-tags{
  margin-left:auto;
  display:flex;
  gap:8px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.75rem;
  font-weight:700;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(185,233,76,.16);
  color:var(--forest);
}
.tag.tag-green{background:rgba(185,233,76,.2);color:var(--forest);}
.tag.tag-soft{background:rgba(24,58,48,.07);color:var(--ink-2);}
.timeline-item h3{
  font-size:1.18rem;
  margin-bottom:10px;
  letter-spacing:-.01em;
}
.timeline-item h3 span i{color:var(--muted);font-style:normal;font-weight:500;}
.timeline-item > p{
  color:var(--muted);
  font-size:.94rem;
  margin-bottom:14px;
  max-width:760px;
}
.timeline-list{
  list-style:none;
  padding:0;
  margin:0 0 18px;
  display:grid;
  gap:8px;
}
.timeline-list li{
  position:relative;
  padding-left:24px;
  font-size:.93rem;
  line-height:1.7;
  color:var(--ink);
}
.timeline-list li::before{
  content:"";
  position:absolute;
  left:3px;
  top:.86em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--forest);
  opacity:.7;
}
.timeline-item.current .timeline-list li::before{background:var(--forest);}
.timeline-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  padding-top:13px;
  border-top:1px dashed rgba(24,58,48,.15);
  font-size:.86rem;
}
.timeline-foot .mono-line{
  color:var(--muted);
  font-family:var(--mono);
}
.timeline-foot a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--forest);
  font-weight:700;
}
.timeline-foot a:hover{color:var(--ink-2);gap:12px;}

.guide-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.info-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px 26px;
  transition:var(--transition);
}
.info-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(14,45,37,.18);
}
.info-card .step-icon{
  width:46px;height:46px;
  border-radius:14px;
  background:var(--forest);
  color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);
  font-size:1rem;
  font-weight:800;
  margin-bottom:20px;
  letter-spacing:-.04em;
}
.info-card h3{font-size:1.08rem;margin-bottom:10px;}
.info-card p{color:var(--muted);font-size:.9rem;margin-bottom:0;}
.info-card p + a{display:inline-flex;margin-top:16px;gap:7px;align-items:center;font-size:.86rem;font-weight:700;color:var(--forest);}
.info-card p + a:hover{gap:12px;color:var(--forest-2);}

.download-strip{
  background:var(--forest);
  border-radius:24px;
  padding:34px 40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  box-shadow:0 22px 56px rgba(10,34,26,.22);
  overflow:hidden;
}
.download-strip h2{
  color:#f7ffe9;
  font-size:clamp(1.25rem,2.5vw,1.7rem);
  margin-bottom:7px;
}
.download-strip p{color:#c8e2c0;font-size:.9rem;margin-bottom:0;}
.download-strip-btn{display:flex;flex-wrap:wrap;gap:12px;}
.download-note{
  margin-top:14px;
  font-family:var(--mono);
  font-size:.76rem;
  color:rgba(208,235,196,.68);
}
.download-note i{color:var(--accent);margin-right:5px;}

.site-footer{
  background:var(--forest);
  color:#d3e4cd;
  padding:70px 0 28px;
  margin-top:70px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.55fr .9fr .9fr 1.1fr;
  gap:44px;
  padding-bottom:42px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.2rem;
  font-weight:800;
  color:#f7ffe9;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:.9rem;
  color:#a8c3ab;
  line-height:1.8;
  margin-bottom:18px;
  max-width:360px;
}
.footer-domain{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:.79rem;
  color:#9cba9f;
  border:1px solid rgba(255,255,255,.1);
  padding:6px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.03);
}
.footer-title{
  font-size:.9rem;
  color:#f2ffe5;
  font-weight:800;
  letter-spacing:.05em;
  text-transform:uppercase;
  margin-bottom:18px;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{margin-bottom:11px;color:#9dbaa0;font-size:.88rem;}
.footer-links a{
  color:#bad2b9;
  font-size:.88rem;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:3px 0;
  transition:var(--transition);
}
.footer-links a:hover{color:var(--accent);transform:translateX(3px);}
.footer-links .fas{margin-right:3px;color:var(--accent);opacity:.9;font-size:.72rem;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;color:#a5c0a4;font-size:.85rem;}
.footer-contact .fas{margin-top:3px;color:var(--accent);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  color:#87a48a;
  font-size:.82rem;
  font-family:var(--mono);
}
.footer-bottom a{color:#a5cba0;}
.footer-bottom a:hover{color:var(--accent);}

@media (max-width:1023px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .nav-cn{
    position:fixed;
    top:72px;
    left:0;right:0;
    margin:0;
    background:rgba(249,246,238,.99);
    padding:14px 18px 26px;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    box-shadow:0 24px 48px rgba(20,40,32,.16);
    border-bottom:1px solid var(--line);
    opacity:0;
    visibility:hidden;
    transform:translateY(-14px);
    transition:opacity .23s ease,transform .23s ease,visibility .23s ease;
  }
  .header.open .nav-cn{opacity:1;visibility:visible;transform:none;}
  .nav-cn a{width:100%;height:48px;padding:0 16px;}
  .nav-cn a::after{left:16px;right:auto;width:20px;}
  .search-field{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero{padding:64px 0 72px;}
  .hero-note-card{margin-top:34px;}
  .section{padding:70px 0;}
  .version-index-layout{grid-template-columns:1fr;gap:34px;}
  .sticky-side{position:static;}
  .side-card h2{margin-top:0;}
  .guide-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}

@media (max-width:639px){
  body{font-size:15px;}
  .header-inner{min-height:64px;gap:12px;}
  .brand-logo{font-size:1.04rem;}
  .logo-mark{width:32px;height:32px;font-size:.8rem;}
  .header-actions .btn{width:44px;padding:0;gap:0;min-width:44px;}
  .header-actions .btn .btn-text{display:none;}
  .page-hero{padding:48px 0 60px;}
  .breadcrumb-cn{font-size:.8rem;gap:6px;}
  .version-hero h1{font-size:2.3rem;line-height:1.12;}
  .version-hero .lead{font-size:1rem;line-height:1.85;}
  .hero-monoline{font-size:.78rem;margin-top:22px;gap:8px;}
  .section{padding:58px 0;}
  .section-heading h2{font-size:1.62rem;}
  .timeline-item{padding:21px 18px;margin-left:20px;}
  .timeline-item::before{left:-34px;top:30px;}
  .version-timeline::before{left:-26px;}
  .timeline-tags{margin-left:0;width:100%;}
  .timeline-foot{gap:10px;}
  .timeline-foot .rev{width:100%;}
  .guide-grid{grid-template-columns:1fr;}
  .info-card{padding:24px 20px;}
  .download-strip{padding:28px 20px;border-radius:20px;}
  .download-strip .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
  .btn{padding:0 18px;}
  .grid-container{padding-left:14px;padding-right:14px;}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  .btn:hover,.info-card:hover{transform:none;}
}