/* roulang page: index */
:root{
  --bg:#F4F3EE;
  --white:#FFFFFF;
  --ink:#161A18;
  --muted:#65736C;
  --dark:#0F1312;
  --dark-2:#1A211E;
  --light-line:rgba(25,30,28,.12);
  --dark-line:rgba(255,255,255,.14);
  --primary:#D7F45C;
  --primary-hover:#C9E84F;
  --on-primary:#0A0F0D;
  --amber:#F5B14C;
  --radius:12px;
  --radius-lg:20px;
  --pill:999px;
  --shadow-card:0 8px 40px rgba(15,19,18,.06);
  --container:1200px;
  --space:110px;
  --space-mobile:72px;
  --header-h:72px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei UI","Segoe UI",sans-serif;
}
*,
*::before,
*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{background:none;border:none;cursor:pointer}
input{outline:none}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.25}
a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:4px;
}
::selection{background:var(--primary);color:var(--on-primary)}
.container{
  width:min(1200px,calc(100% - 48px));
  margin:0 auto;
}
.section{padding:var(--space) 0}
.section-white{background:var(--white)}
.section-bright{background:var(--white);border-bottom:1px solid var(--light-line)}
.section-soft{background:#F4F3EE}
.overline{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
}
.overline::before{
  content:"";
  width:18px;height:2px;background:var(--primary);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-title{
  font-size:clamp(1.6rem,3vw,2.6rem);
  font-weight:750;
  letter-spacing:-.02em;
  margin-top:10px;
}
.section-desc{
  color:var(--muted);
  max-width:600px;
  font-size:15px;
  margin-top:12px;
}
.sec-link{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
  border-bottom:1px solid var(--light-line);
  padding-bottom:4px;
  transition:color .22s ease,border-color .22s ease;
}
.sec-link:hover{color:var(--muted);border-color:rgba(25,30,28,.3)}
/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  letter-spacing:.01em;
  transition:all .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:var(--on-primary);
}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.6);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border-color:rgba(25,30,28,.3);
}
.btn-outline:hover{border-color:rgba(25,30,28,.8);background:rgba(255,255,255,.5)}
.btn-light{
  background:#fff;
  color:var(--dark);
  border-color:#fff;
}
.btn-light:hover{background:var(--primary);border-color:var(--primary);color:var(--dark)}
.btn-lg{height:54px;padding:0 32px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn .icon{width:17px;height:17px;flex:0 0 17px}

/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(244,243,238,.88);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:border .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--light-line);
  box-shadow:0 1px 0 rgba(15,19,18,.03);
}
.header-wrap{
  display:grid;
  grid-template-columns:auto auto minmax(220px,1fr) auto auto auto;
  align-items:center;
  gap:16px;
  min-height:var(--header-h);
}
.brand-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  line-height:1.2;
}
.brand-name{
  font-size:18px;
  font-weight:800;
  letter-spacing:0;
  color:var(--ink);
  transition:opacity .22s ease;
}
.brand-link:hover .brand-name{opacity:.75}
.nav-panel.desktop-secondary{display:flex;align-items:center;gap:4px}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-list > li > a{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  font-size:14px;
  font-weight:500;
  border-radius:8px;
  color:var(--ink);
  position:relative;
  transition:background .22s ease,color .22s ease;
}
.nav-list > li > a:hover{background:rgba(15,19,18,.05);color:var(--dark)}
.nav-list > li > a.active{
  font-weight:700;
}
.nav-list > li > a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:1px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
}
.desktop-download{
  height:38px;
  padding:0 18px;
  font-size:13px;
}
.header-cta{display:inline-flex}
.header-search{
  position:relative;
  width:100%;
  justify-self:center;
}
.search-form{
  display:flex;
  align-items:center;
  gap:8px;
  width:100%;
  height:46px;
  background:var(--white);
  border:1px solid var(--light-line);
  border-radius:48px;
  padding:0 16px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.search-form:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(215,244,92,.2);
}
.search-form .search-icon{width:18px;height:18px;stroke:var(--muted);flex:0 0 18px}
.search-form input{
  flex:1;
  min-width:0;
  border:none;
  background:transparent;
  font-size:14px;
  color:var(--ink);
}
.search-form input::placeholder{color:#98A29C}
.search-key{
  font-size:12px;
  color:var(--muted);
  background:#F1F0EA;
  border:1px solid var(--light-line);
  padding:2px 7px;
  border-radius:6px;
  flex:0 0 auto;
}
.search-sheet{
  position:absolute;
  top:calc(100% + 8px);
  left:0;
  right:0;
  background:var(--white);
  border:1px solid var(--light-line);
  border-radius:16px;
  box-shadow:0 20px 60px rgba(15,19,18,.12);
  padding:8px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.search-sheet.is-open{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.sheet-label{
  font-size:12px;
  color:var(--muted);
  font-weight:600;
  padding:8px 10px 4px;
  letter-spacing:.04em;
}
.suggest-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px;
  border-radius:10px;
  font-size:14px;
  color:var(--ink);
  transition:background .22s ease;
}
.suggest-item:hover{background:rgba(215,244,92,.25)}
.suggest-icon{
  width:30px;height:30px;
  border:1px solid var(--light-line);
  border-radius:8px;
  display:grid;
  place-items:center;
  background:#F8F7F3;
  font-weight:800;
}
.menu-burger{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  color:var(--ink);
}
.menu-burger:hover{background:rgba(15,19,18,.05)}
.mobile-drawer{
  display:none;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--light-line);
  padding:0 24px 22px;
}
.mobile-drawer.is-open{display:block}
.mobile-nav{display:grid;gap:4px}
.mobile-nav a{
  display:flex;
  align-items:center;
  padding:12px 4px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid rgba(25,30,28,.06);
}
.mobile-nav a:last-child{border-bottom:none}
.mobile-nav a:hover{color:var(--muted)}
@media (max-width:1080px){
  .header-wrap{
    grid-template-columns:1fr auto auto;
    grid-template-rows:auto auto;
    padding:8px 0;
    row-gap:4px;
  }
  .nav-panel{display:none}
  .header-search{order:3;grid-column:1/-1}
  .brand-link{order:1}
  .desktop-download{order:4}
  .menu-burger{order:5;display:flex}
}
@media (max-width:640px){
  .header-download-inner{display:none}
  .brand-name{font-size:16px}
  .brand-icon{width:30px;height:30px}
  .header-wrap{column-gap:10px}
  .search-form{height:42px}
}
/* hero */
.hero{
  position:relative;
  background:var(--dark);
  color:#fff;
  overflow:hidden;
  padding:88px 0 92px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.16;
}
.hero-grid-layer{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(135deg,transparent 40%,#000 88%);
  -webkit-mask-image:linear-gradient(135deg,transparent 40%,#000 88%);
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:64px;
  align-items:center;
}
.hero-copy{max-width:660px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:30px;
  padding:0 14px;
  border-radius:var(--pill);
  border:1px solid rgba(255,255,255,.25);
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  background:rgba(255,255,255,.04);
}
.eyebrow .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 0 rgba(215,244,92,.7);
  animation:breathe 2.4s infinite;
}
@keyframes breathe{
  0%{box-shadow:0 0 0 0 rgba(215,244,92,.45)}
  50%{box-shadow:0 0 0 6px rgba(215,244,92,0)}
  100%{box-shadow:0 0 0 0 rgba(215,244,92,0)}
}
.hero-title{
  margin-top:24px;
  font-size:clamp(2.6rem,6vw,5rem);
  font-weight:800;
  line-height:1.12;
  letter-spacing:0;
  max-width:13em;
}
.hero-sub{
  margin-top:20px;
  color:rgba(255,255,255,.65);
  font-size:17px;
  line-height:1.8;
  max-width:34em;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:34px;
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:40px;
  align-items:center;
}
.metric-block{
  display:flex;
  flex-direction:column;
}
.metric-block strong{
  font-size:22px;
  font-weight:800;
  line-height:1.2;
  color:#fff;
  font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
}
.metric-block span{
  font-size:12px;
  color:rgba(255,255,255,.5);
  letter-spacing:.04em;
  margin-top:4px;
}
.metric-line{
  width:1px;height:38px;
  background:rgba(255,255,255,.15);
  margin:0 24px;
}
.login-terminal{
  background:#fff;
  border-radius:18px;
  box-shadow:0 32px 90px rgba(0,0,0,.4);
  overflow:hidden;
  max-width:440px;
  width:100%;
  margin-left:auto;
  margin-bottom:30px;
}
.term-bar{
  display:flex;
  align-items:center;
  gap:8px;
  padding:14px 16px;
  border-bottom:1px solid rgba(25,30,28,.07);
  background:#fff;
  justify-content:space-between;
}
.term-dots{display:flex;gap:6px}
.term-dots i{width:10px;height:10px;border-radius:50%;display:block}
.term-dots i:nth-child(1){background:#F45757}
.term-dots i:nth-child(2){background:#F5B14C}
.term-dots i:nth-child(3){background:#8ACB5B}
.term-code{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:11px;
  color:#9AA39E;
  letter-spacing:.08em;
}
.term-body{padding:22px 22px 20px}
.term-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}
.term-brand .brand-name{font-size:18px;color:#161A18!important}
.term-logo-icon{
  width:36px;height:36px;
  border-radius:9px;
  background:var(--dark);
  display:grid;place-items:center;
  color:var(--primary);
  font-weight:900;
  font-size:20px;
}
.terminal-fields{display:grid;gap:14px}
.field-row{
  position:relative;
}
.field-row label{
  display:block;
  font-size:12px;
  color:var(--muted);
  font-weight:600;
  margin-bottom:6px;
  letter-spacing:.02em;
}
.fake-input{
  width:100%;
  height:42px;
  border:1px solid var(--light-line);
  border-radius:10px;
  background:#FAFAF7;
  padding:0 12px;
  font-size:14px;
  pointer-events:none;
}
.fake-input::placeholder{color:#B6BDB9}
.term-login-btn{
  margin-top:18px;
  width:100%;
  height:44px;
  background:var(--primary);
  border-radius:999px;
  color:var(--on-primary);
  font-weight:700;
  font-size:15px;
  border:none;
  pointer-events:none;
}
.term-bottom{
  display:flex;
  align-items:center;
  gap:16px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed rgba(25,30,28,.12);
}
.qr-placeholder{
  width:58px;height:58px;
  border-radius:8px;
  background-color:#fff;
  background-image:
    radial-gradient(var(--dark) 20%,transparent 21%),
    radial-gradient(var(--dark) 16%,transparent 17%);
  background-size:8px 8px,10px 10px;
  background-position:4px 4px,8px 0;
  border:1px solid var(--light-line);
  display:grid;
  place-items:center;
  overflow:hidden;
}
.qr-placeholder span{
  background:#fff;
  padding:0 5px;
  font-size:8px;
  font-weight:800;
  color:var(--dark);
}
.term-version{
  font-size:12px;
  color:var(--muted);
  line-height:1.5;
}
.term-version strong{color:var(--ink);display:block}
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .login-terminal{margin:0 auto}
  .hero{padding:64px 0 72px}
}
/* carousel section */
.carousel-sec{
  background:var(--white);
  border-top:1px solid rgba(15,19,18,.12);
  padding:var(--space) 0 var(--space);
}
.carousel-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:30px;
  margin-bottom:46px;
}
.carousel-ui{display:flex;gap:10px}
.round-btn{
  width:46px;height:46px;
  display:grid;place-items:center;
  border:1px solid var(--light-line);
  border-radius:50%;
  color:var(--ink);
  transition:background .22s ease,border .22s ease;
}
.round-btn:hover{background:var(--primary);border-color:var(--primary)}
.carousel-area{display:grid;grid-template-columns:62% 38%;gap:0;background:#fff}
.show-slide{
  display:none;
  gap:44px;
  align-items:center;
}
.show-slide.is-active{
  display:grid;
  grid-template-columns:62% 38%;
  animation:slideIn .5s ease both;
}
@keyframes slideIn{
  from{opacity:0;transform:translateY(10px)}
  to{opacity:1;transform:none}
}
.slide-media{position:relative}
.browser-window{
  border-radius:14px;
  border:1px solid var(--light-line);
  box-shadow:0 20px 60px rgba(15,19,18,.1);
  overflow:hidden;
  background:#fff;
  aspect-ratio:16/10;
}
.browser-tab{
  display:flex;
  align-items:center;
  gap:6px;
  padding:9px 14px;
  background:#F4F3EE;
  border-bottom:1px solid rgba(25,30,28,.08);
}
.browser-tab i{width:8px;height:8px;border-radius:50%;display:block}
.browser-tab i:nth-child(1){background:#F45757}
.browser-tab i:nth-child(2){background:#F5B14C}
.browser-tab i:nth-child(3){background:#8ACB5B}
.browser-tab span{
  font-size:10px;
  letter-spacing:.06em;
  margin-left:8px;
  color:var(--muted);
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.slide-media img{
  width:100%;
  height:calc(100% - 35px);
  object-fit:cover;
}
.carousel-status{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:16px;
}
.carousel-dots{display:flex;gap:8px}
.dot{
  width:26px;height:4px;
  border-radius:4px;
  background:rgba(15,19,18,.15);
  transition:background .22s ease,width .22s ease;
}
.dot.is-active{background:var(--primary);width:38px}
.slide-counter{
  font-size:12px;
  color:var(--muted);
  font-family:ui-monospace,Menlo,Consolas,monospace;
  letter-spacing:.08em;
}
.slide-content{padding:10px 0}
.slide-title{
  font-size:26px;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:12px;
  line-height:1.3;
}
.slide-copy{
  color:var(--muted);
  font-size:15px;
  max-width:38em;
}
.slide-features{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin-top:22px;
}
.feature-cell{
  display:flex;
  align-items:center;
  gap:10px;
  background:#FBFAF6;
  border:1px solid var(--light-line);
  padding:10px 13px;
  border-radius:10px;
  font-size:14px;
}
.feature-ico{
  width:8px;height:8px;
  border-radius:2px;
  background:var(--primary);
  flex:0 0 8px;
}
@media(max-width:1024px){
  .show-slide.is-active,
  .show-slide{
    grid-template-columns:1fr;
  }
  .carousel-area{grid-template-columns:1fr}
}
/* system */
.spec-sec{
  background:#F4F3EE;
}
.spec-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:30px;
  margin-bottom:38px;
}
.spec-list{
  border-top:1px solid rgba(25,30,28,.16);
}
.spec-row{
  position:relative;
  display:grid;
  grid-template-columns:210px 1fr auto;
  align-items:center;
  gap:26px;
  padding:24px 12px;
  border-bottom:1px solid rgba(25,30,28,.12);
  transition:background .25s ease;
}
.spec-row::before{
  content:"";
  position:absolute;
  left:0;top:0;
  height:100%;
  width:4px;
  background:var(--primary);
  transform:scaleY(0);
  transition:transform .25s ease;
  border-radius:0 4px 4px 0;
}
.spec-row:hover{
  background:rgba(255,255,255,.6);
}
.spec-row:hover::before{transform:scaleY(1)}
.spec-os{
  display:flex;
  align-items:center;
  gap:14px;
}
.os-chip{
  width:52px;height:52px;
  display:grid;
  place-items:center;
  border-radius:13px;
  background:var(--white);
  border:1px solid var(--light-line);
  color:var(--ink);
  font-size:23px;
  font-weight:800;
  letter-spacing:-.05em;
}
.os-title{font-weight:700;font-size:18px}
.os-sub{
  font-size:12px;
  color:var(--muted);
  margin-top:2px;
}
.spec-info{
  max-width:560px;
  color:var(--ink);
  font-size:15px;
}
.spec-info span{color:var(--muted)}
.spec-link-btn{font-size:13px}
@media(max-width:860px){
  .spec-row{grid-template-columns:1fr;gap:14px}
  .spec-info{max-width:none}
  .spec-link-btn .btn{width:auto}
}
/* updates */
.updates-sec{
  background:var(--white);
  border-top:1px solid var(--light-line);
  border-bottom:1px solid var(--light-line);
}
.post-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.post-card{
  background:#fff;
  border:1px solid var(--light-line);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{
  transform:translateY(-3px);
  border-color:rgba(15,19,18,.25);
  box-shadow:var(--shadow-card);
}
.post-card .post-cover{
  display:block;
  aspect-ratio:16/10;
  overflow:hidden;
  background:#F1F0EA;
}
.post-card .post-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex:1;
}
.post-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.meta-chip{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  background:rgba(215,244,92,.4);
  border-radius:999px;
  font-size:12px;
  color:#161A18;
  font-weight:600;
}
.meta-date{
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
}
.post-title{
  font-size:18px;
  font-weight:750;
  line-height:1.45;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.post-title a{color:var(--ink)}
.post-title a:hover{color:var(--muted)}
.post-excerpt{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  margin-top:auto;
}
.empty-news{
  border:1.5px dashed rgba(15,19,18,.16);
  border-radius:18px;
  padding:64px 24px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  text-align:center;
  background:#FDFCF9;
}
.empty-icon{
  width:56px;height:56px;
  border-radius:14px;
  background:rgba(215,244,92,.35);
  display:grid;
  place-items:center;
  font-size:12px;
  letter-spacing:-.04em;
  font-weight:800;
  color:var(--ink);
}
.empty-news p{color:var(--muted);font-size:15px}
.history-line{
  margin-top:32px;
  text-align:center;
  border-top:1px solid var(--light-line);
  padding-top:28px;
}
@media(max-width:1024px){
  .post-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .post-grid{grid-template-columns:1fr}
}
/* reviews */
.reviews-sec{
  background:#F4F3EE;
}
.reviews-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.review-summary{
  background:#fff;
  border:1px solid var(--light-line);
  border-radius:20px;
  padding:28px;
  position:sticky;
  top:100px;
}
.r-score{
  display:flex;
  align-items:flex-end;
  gap:14px;
  padding-bottom:18px;
  border-bottom:1px solid var(--light-line);
}
.r-score strong{
  font-size:68px;
  line-height:.9;
  letter-spacing:-.06em;
}
.r-score small{
  font-size:14px;
  color:var(--muted);
  line-height:1.5;
  max-width:7em;
}
.stars{color:var(--amber);letter-spacing:4px;margin-top:20px;font-size:15px}
.ratio-list{display:grid;gap:9px;margin-top:22px}
.ratio-item{display:flex;align-items:center;gap:10px;font-size:13px}
.ratio-track{
  flex:1;
  height:6px;
  border-radius:6px;
  background:#ECEAE3;
  overflow:hidden;
}
.ratio-fill{
  height:100%;
  border-radius:6px;
  background:var(--primary);
  display:block;
}
.reviews-list{
  columns:2;
  column-gap:18px;
}
.review-card{
  background:#fff;
  border:1px solid var(--light-line);
  border-radius:var(--radius);
  padding:20px;
  margin-bottom:18px;
  break-inside:avoid;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.review-card:hover{border-color:rgba(15,19,18,.22);box-shadow:var(--shadow-card)}
.review-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:12px;
}
.review-user{display:flex;align-items:center;gap:10px}
.review-avatar{
  width:36px;height:36px;
  border-radius:50%;
  background:var(--dark);
  color:#fff;
  display:grid;place-items:center;
  font-size:14px;
  font-weight:600;
}
.review-name{font-size:14px;font-weight:700}
.review-date{font-size:12px;color:var(--muted)}
.review-text{font-size:14.5px;line-height:1.7;color:var(--ink);overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.review-rating{color:var(--amber);font-size:13px;margin-top:8px;letter-spacing:2px}
@media(max-width:1180px){
  .reviews-layout{grid-template-columns:1fr;grid-gap:32px}
  .review-summary{position:static}
}
@media(max-width:720px){
  .reviews-list{columns:1}
}
/* FAQ */
.faq-sec{
  background:var(--white);
}
.faq-grid{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:60px;
}
.faq-copy{max-width:340px}
.faq-copy p{margin-top:16px;color:var(--muted);font-size:15px}
.faq-copy .btn{margin-top:22px}
.faq-list{border-top:1px solid rgba(25,30,28,.14)}
.faq-item{
  border-bottom:1px solid rgba(25,30,28,.14);
}
.faq-question{
  width:100%;
  display:grid;
  grid-template-columns:48px 1fr 42px;
  align-items:center;
  gap:8px;
  padding:24px 4px;
  text-align:left;
  transition:padding-left .22s ease;
}
.faq-item.open .faq-question{padding-left:10px}
.faq-num{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:13px;
  color:#9AA59E;
  font-weight:700;
}
.faq-q-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.faq-icon{
  width:34px;height:34px;
  border:1px solid var(--light-line);
  border-radius:50%;
  display:grid;
  place-items:center;
  position:relative;
  transition:all .3s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  width:14px;height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .3s ease;
}
.faq-icon::after{transform:rotate(90deg)}
.faq-item.open .faq-icon{background:var(--primary);border-color:var(--primary)}
.faq-item.open .faq-icon::after{transform:rotate(0)}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-item.open .faq-panel{max-height:300px}
.faq-answer{
  padding:0 92px 22px 48px;
  color:var(--muted);
  line-height:1.85;
  font-size:15px;
}
@media(max-width:1024px){
  .faq-grid{grid-template-columns:1fr;gap:28px}
}
@media(max-width:640px){
  .faq-question{grid-template-columns:30px 1fr 38px;padding:18px 0}
  .faq-answer{padding:0 44px 18px 24px}
}
/* final cta / downloads */
.cta-dark{
  background:var(--dark);
  color:#fff;
  padding:98px 0 108px;
  position:relative;
  overflow:hidden;
}
.cta-dark-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.1;
}
.cta-inner{position:relative;z-index:2}
.cta-title{
  font-size:clamp(1.8rem,3.4vw,2.8rem);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
  margin-top:10px;
}
.cta-desc{
  color:rgba(255,255,255,.6);
  max-width:560px;
  font-size:15px;
  margin-top:16px;
}
.download-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:46px;
}
.dl-tile{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.09);
  border-radius:14px;
  padding:18px;
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:14px;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.dl-tile:hover{
  background:rgba(255,255,255,.08);
  transform:translateY(-3px);
  border-color:rgba(215,244,92,.4);
}
.dl-icon{
  width:44px;height:44px;
  background:#fff;
  border-radius:11px;
  display:grid;
  place-items:center;
  font-size:13px;
  font-weight:900;
  color:var(--dark);
}
.dl-info strong{
  display:block;
  font-size:15px;
  color:#fff;
  margin-bottom:2px;
}
.dl-info span{
  font-size:12px;
  color:rgba(255,255,255,.5);
}
.dl-tile .btn{
  height:36px;
  font-size:13px;
  padding:0 14px;
}
@media(max-width:1024px){
  .download-grid{grid-template-columns:1fr;max-width:520px;margin-left:auto;margin-right:auto}
}
/* footer */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.8);
  font-size:14px;
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:56px;
  padding:70px 0 56px;
}
.footer-brand .brand-name{color:#fff}
.footer-about{
  margin-top:18px;
  color:rgba(255,255,255,.5);
  max-width:300px;
  line-height:1.8;
  font-size:14px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:22px;
  letter-spacing:.04em;
}
.footer-links li{
  margin-bottom:12px;
}
.footer-links a{
  color:rgba(255,255,255,.6);
  transition:color .22s ease;
  font-size:14px;
}
.footer-links a:hover{color:var(--primary)}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;margin-bottom:14px;color:rgba(255,255,255,.6)}
.footer-contact li svg{width:16px;height:16px;margin-top:3px;flex:0 0 16px}
.footer-bottom{
  padding:24px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  gap:16px;
  color:rgba(255,255,255,.4);
  font-size:13px;
}
.footer-tech{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  letter-spacing:.04em;
}
@media(max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;row-gap:38px}
}
@media(max-width:560px){
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .footer-tech{font-size:12px}
}
/* mobile fixed cta */
.mobile-bottom-cta{
  display:none;
}
@media(max-width:740px){
  .mobile-bottom-cta{
    display:block;
    position:fixed;
    z-index:99;
    left:16px;
    right:16px;
    bottom:16px;
  }
  .mobile-bottom-cta .btn{
    width:100%;
    height:56px;
    font-size:15px;
    box-shadow:0 16px 40px rgba(15,19,18,.25);
  }
  body{
    padding-bottom:90px;
  }
}
/* responsiveness generic */
@media(max-width:1024px){
  .section{padding:var(--space-mobile) 0}
  .section-head,.carousel-head{flex-direction:column;align-items:flex-start}
  .carousel-ui{margin-top:0}
  .section-title{margin-top:16px}
  .metric-line{margin:0 16px}
}
@media(max-width:640px){
  .container{width:min(1200px,calc(100% - 32px))}
  .hero-title{font-size:2.4rem}
  .hero{margin-top:0}
  .nav-list{border-top:1px solid var(--light-line)}
  .reviews-layout,.faq-grid{grid-template-columns:1fr}
  .review-summary h3{font-size:1.4rem}
  .post-title{font-size:17px}
  .slide-features{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .download-grid{grid-template-columns:1fr}
  .dl-tile{grid-template-columns:auto 1fr}
  .dl-tile .btn{grid-column:1/-1;justify-self:end}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg:#F4F3EE;
  --bg-soft:#ECEBE4;
  --white:#FFFFFF;
  --ink:#161A18;
  --muted:#65736C;
  --line:rgba(25,30,28,.12);
  --line-strong:rgba(25,30,28,.24);
  --lime:#D7F45C;
  --lime-hover:#C9E84F;
  --lime-fade:rgba(215,244,92,.22);
  --dark:#0F1312;
  --dark-2:#1A211E;
  --amber:#F5B14C;
  --btn-dark-text:#0A0F0D;
  --radius:12px;
  --radius-pill:999px;
  --shadow-card:0 8px 40px rgba(15,19,18,.06);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei UI","Segoe UI",sans-serif;
  --mono:"SFMono-Regular",ui-monospace,"Roboto Mono","Cascadia Code",Consolas,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}
.container{
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:clamp(64px,7vw,110px) 0;}
.section-tight{padding-top:0;}
.section-white{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-soft{background:var(--bg);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{
  content:"";width:20px;height:2px;background:var(--lime);display:inline-block;
  border-radius:2px;
}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:40px;flex-wrap:wrap;
}
.section-title{
  font-size:clamp(1.6rem,3vw,2.6rem);
  font-weight:750;line-height:1.2;margin:8px 0 0;letter-spacing:0;
}
.section-desc{
  color:var(--muted);max-width:560px;margin:10px 0 0;font-size:15px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;border:1.5px solid transparent;
  transition:background .22s ease,border-color .22s ease,color .22s ease,transform .22s ease;
  white-space:nowrap;background:none;
}
.btn .btn-note{font-size:12px;font-weight:500;opacity:.7;margin-left:2px;}
.btn-lime{background:var(--lime);color:var(--btn-dark-text);}
.btn-lime:hover{background:var(--lime-hover);}
.btn-dark{background:#0C100E;color:#F4F3EE;}
.btn-dark:hover{background:#242C28;}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);}
.btn-outline-dark{background:transparent;border-color:rgba(15,19,18,.32);color:var(--ink);}
.btn-outline-dark:hover{border-color:var(--dark);background:rgba(15,19,18,.03);}
.btn-sm{height:38px;padding:0 18px;font-size:13px;}
.btn-block{width:100%;}
button:focus-visible,a:focus-visible,input:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
}
/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(244,243,238,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 4px 24px rgba(15,19,18,.05);
}
.header-wrap{
  display:grid;
  grid-template-columns:auto auto minmax(0,1fr) auto auto;
  align-items:center;
  gap:18px;
  min-height:72px;
  position:relative;
}
.brand-link{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand-icon{flex:0 0 auto;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:0;white-space:nowrap;}
.brand-name small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.08em;line-height:1.2;}
.nav-list{display:flex;align-items:center;gap:6px;list-style:none;}
.nav-list a{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 12px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--ink);
  position:relative;transition:background .22s ease,color .22s ease;
}
.nav-list a:hover{background:rgba(15,19,18,.06);}
.nav-list a.active{color:var(--ink);}
.nav-list a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;background:var(--lime);border-radius:4px;
}
.desktop-primary .nav-list{gap:2px;}
.header-search{
  max-width:520px;justify-self:center;width:100%;
  position:relative;
}
.search-form{
  display:flex;align-items:center;height:46px;
  background:#fff;border:1px solid var(--line);border-radius:48px;
  padding:0 14px;transition:border-color .22s ease,box-shadow .22s ease;
}
.search-form:focus-within{
  border-color:var(--lime);
  box-shadow:0 0 0 4px var(--lime-fade);
}
.search-icon{width:18px;height:18px;color:var(--muted);flex:0 0 auto;}
.search-form input{
  display:block;width:100%;border:0;outline:0;background:transparent;
  padding:0 12px;font-size:14px;color:var(--ink);
}
.search-form input::placeholder{color:var(--muted);}
.search-key{
  font-family:var(--mono);font-size:11px;color:var(--muted);
  background:var(--bg);border:1px solid var(--line);border-radius:6px;
  padding:2px 7px;flex:0 0 auto;
}
.search-sheet{
  position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:90;
  background:#fff;border-radius:14px;border:1px solid var(--line);
  box-shadow:0 20px 60px rgba(15,19,18,.1);
  padding:10px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.search-sheet.show{opacity:1;visibility:visible;transform:translateY(0);}
.sheet-label{font-size:12px;color:var(--muted);padding:6px 12px 8px;font-weight:600;}
.suggest-item{
  display:flex;align-items:center;gap:10px;padding:10px 12px;
  border-radius:10px;font-size:14px;color:var(--ink);
  transition:background .2s ease;
}
.suggest-item:hover{background:var(--lime-fade);}
.suggest-icon{
  width:28px;height:28px;border-radius:8px;background:var(--bg-soft);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--muted);
}
.desktop-secondary .nav-list{gap:2px;}
.header-action{justify-self:end;}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:12px;background:#fff;align-items:center;justify-content:center;gap:0;
}
.menu-toggle .bar{
  display:block;width:18px;height:2px;background:var(--ink);
  margin:3px 0;border-radius:4px;transition:transform .22s ease,opacity .22s ease;
}
.menu-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(5px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.mobile-nav{
  display:none;background:var(--bg);border-top:1px solid var(--line);
  padding:12px 0 16px;
}
.mobile-nav .nav-list{
  flex-direction:column;align-items:stretch;gap:2px;
}
.mobile-nav .nav-list a{
  justify-content:flex-start;height:46px;padding:0 14px;border-radius:10px;
}
.mobile-nav .nav-list a.active{background:var(--lime-fade);}
/* ===== Hero ===== */
.hero{
  background:var(--dark);
  color:#EDF0EB;
  position:relative;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(215,244,92,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(215,244,92,.045) 1px,transparent 1px);
  background-size:54px 54px;
  pointer-events:none;
}
.hero-bg-pattern{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.18;mix-blend-mode:screen;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,19,18,.9) 0%,rgba(15,19,18,.72) 60%,rgba(15,19,18,.56) 100%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(380px,.85fr);
  gap:clamp(36px,6vw,84px);
  align-items:center;
  padding:clamp(68px,8vw,116px) 0 90px;
}
.hero-copy{max-width:640px;}
.status-pill{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border:1px solid rgba(215,244,92,.4);
  border-radius:var(--radius-pill);font-size:12px;letter-spacing:.08em;
  font-weight:600;color:var(--lime);margin-bottom:22px;
}
.status-pill i{
  width:7px;height:7px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 0 var(--lime-fade);animation:pulse-dot 2s infinite;
}
@keyframes pulse-dot{0%{box-shadow:0 0 0 0 rgba(215,244,92,.6);}70%{box-shadow:0 0 0 7px rgba(215,244,92,0);}100%{box-shadow:0 0 0 0 rgba(215,244,92,0);}}
.hero h1{
  font-size:clamp(2.6rem,6vw,5rem);
  line-height:1.12;font-weight:800;letter-spacing:0;
  margin:0 0 18px;color:#fff;
}
.hero h1 .h-block{color:var(--lime);font-family:var(--mono);font-weight:700;}
.hero-sub{
  font-size:clamp(1rem,1.3vw,1.15rem);
  color:rgba(237,240,235,.84);margin:0 0 30px;line-height:1.8;
  max-width:480px;
}
.hero-btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px;}
.hero-metrics{
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding-top:18px;
}
.metric-item{
  display:flex;flex-direction:column;
}
.metric-item b{font-family:var(--mono);font-size:17px;color:#fff;font-weight:700;}
.metric-item span{font-size:12px;color:rgba(237,240,235,.58);margin-top:2px;}
/* terminal panel */
.terminal{
  background:#F5F3ED;color:var(--ink);border-radius:16px;
  padding:18px;position:relative;
  overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.3);
  transition:transform .3s ease;
}
.terminal::after{
  content:"";position:absolute;top:0;left:-80%;height:100%;width:55%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.34),transparent);
  transform:skewX(-18deg);animation:scanGlide 6s ease-in-out infinite;
}
@keyframes scanGlide{0%{left:-80%;}45%{left:130%;}100%{left:130%;}}
@media (prefers-reduced-motion: reduce){
  .terminal::after{animation:none;display:none;}
}
.terminal-top{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.term-dots{display:flex;gap:6px;}
.term-dots i{width:9px;height:9px;border-radius:50%;display:block;}
.term-dots i:nth-child(1){background:#E05A50;}
.term-dots i:nth-child(2){background:#E9B949;}
.term-dots i:nth-child(3){background:#58B46D;}
.term-code{
  font-size:11px;letter-spacing:.1em;color:var(--muted);
  font-family:var(--mono);text-transform:uppercase;
}
.terminal-body{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:22px 20px;margin-top:16px;
  display:flex;flex-direction:column;gap:14px;
}
.terminal-brand{
  display:flex;align-items:center;gap:10px;justify-content:center;
  margin-bottom:4px;
}
.terminal-brand .brand-name{font-size:16px;font-weight:800;}
.term-login-logo{
  width:40px;height:40px;border-radius:10px;background:var(--dark);
  display:flex;align-items:center;justify-content:center;
}
.term-login-logo i{width:16px;height:16px;background:var(--lime);border-radius:4px;display:block;}
.term-field{
  height:40px;background:var(--bg);border:1px solid var(--line);
  border-radius:10px;padding:0 12px;font-size:13px;color:var(--muted);
  display:flex;align-items:center;
}
.term-field span{opacity:.8;}
.term-submit{
  height:44px;background:var(--lime);color:var(--btn-dark-text);
  border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;letter-spacing:.04em;
}
.terminal-foot{
  display:flex;align-items:center;gap:14px;margin-top:16px;
}
.qr-box{
  width:84px;height:84px;flex:0 0 auto;border-radius:12px;
  background:
   linear-gradient(90deg,#0F1312 22%,transparent 22%) 0 0/8px 8px,
   linear-gradient(#0F1312 22%,transparent 22%) 0 0/8px 8px,
   #fff;border:1px solid var(--line);
}
.term-meta p{
  margin:0;font-size:12px;color:var(--muted);line-height:1.6;
}
.term-meta p strong{display:block;color:var(--dark);font-size:13px;}
.term-meta .sync-tag{
  display:inline-flex;gap:5px;align-items:center;background:var(--lime-fade);
  color:#2E3222;font-size:12px;font-weight:600;border-radius:6px;padding:2px 8px;margin-top:8px;
}
/* ===== Section panel ===== */
.showcase-shell{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.9fr);
  border:1px solid var(--line);background:#fff;border-radius:16px;
  overflow:hidden;
}
.slider-stage{
  position:relative;background:var(--dark);min-height:380px;
}
.slide-panel{
  display:grid;gap:16px;padding:16px;
}
.slide-panel.is-active{display:grid;}
.slide-screen{
  position:relative;background:#1A211E;border-radius:12px;
  overflow:hidden;aspect-ratio:16/9;border:1px solid rgba(255,255,255,.08);
}
.slide-screen img{width:100%;height:100%;object-fit:cover;opacity:.78;transition:transform .8s ease;}
.slide-panel:hover .slide-screen img{transform:scale(1.03);}
.slider-controls{
  display:flex;align-items:center;
  justify-content:space-between;gap:12px;padding:0 4px 2px;
}
.slider-progress{
  font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.06em;
}
.slider-arrows{display:flex;gap:8px;}
.slider-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.slider-btn:hover{background:var(--lime);border-color:var(--lime);color:var(--btn-dark-text);}
.slider-btn svg{width:16px;height:16px;}
.showcase-info{
  display:flex;flex-direction:column;justify-content:center;
  padding:26px 24px;background:#fff;
}
.showcase-info h3{font-size:20px;margin:16px 0 8px;font-weight:750;}
.showcase-info p{color:var(--muted);font-size:15px;margin:0 0 22px;}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 10px;list-style:none;}
.feature-list li{
  display:flex;gap:8px;font-size:13px;line-height:1.55;color:var(--ink);
  background:var(--bg-soft);
}
.feature-list .icon{
  width:22px;height:22px;border-radius:6px;background:var(--lime);
  color:var(--btn-dark-text);display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:12px;
}
/* ===== System ledger ===== */
.ledger{
  margin-top:44px;background:#fff;border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
}
.ledger-row{
  display:grid;grid-template-columns:220px 1fr 150px;
  align-items:center;gap:20px;
  border-bottom:1px solid var(--line);padding:20px 22px;
  position:relative;transition:background .22s ease;
  background:#fff;
}
.ledger-row:last-child{border-bottom:0;}
.ledger-row:hover{background:rgba(255,255,255,.6);}
.ledger-row::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--lime);
  transform:scaleY(0);transition:transform .22s ease;
}
.ledger-row:hover::before{transform:scaleY(1);}
.ledger-os{
  display:flex;align-items:center;gap:12px;
  font-weight:700;font-size:15px;
}
.os-badge{
  width:42px;height:42px;border-radius:10px;
  background:var(--dark);color:#fff;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;font-weight:600;
}
.ledger-row:nth-child(2) .os-badge{background:#1C1F1F;}
.ledger-row:nth-child(3) .os-badge{background:#1B382A;}
.ledger-row:nth-child(4) .os-badge{background:#202A37;}
.ledger-config{color:var(--ink);font-size:15px;}
.ledger-config small{display:block;color:var(--muted);font-size:13px;margin-top:3px;}
.ledger-cta{text-align:right;}
/* ===== post cards ===== */
.post-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
  margin-top:6px;
}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{
  transform:translateY(-3px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-card);
}
.post-thumb{
  display:block;aspect-ratio:16/9;background:var(--bg-soft);
  overflow:hidden;
}
.post-thumb img{width:100%;height:100%;object-fit:cover;}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-meta{
  display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);
}
.post-cat{
  display:inline-flex;align-items:center;
  background:var(--lime-fade);color:#2A320F;font-weight:700;
  border-radius:6px;padding:2px 9px;font-size:12px;
}
.post-date{font-family:var(--mono);}
.post-title{
  font-size:17px;line-height:1.5;font-weight:750;margin:0;
}
.post-title a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title a:hover{color:#78A600;}
.post-summary{
  font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin:0;
}
.text-card-link{
  color:var(--ink);text-decoration:none;
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;
  padding:8px 0;
}
.link-more::after{content:"→";transition:transform .2s;}
.link-more:hover{color:#78A600;}
.link-more:hover::after{transform:translateX(4px);}
.empty-state{
  grid-column:1/-1;
  border:2px dashed rgba(15,19,18,.16);
  border-radius:16px;background:rgba(255,255,255,.52);
  padding:54px 20px;text-align:center;color:var(--muted);
}
.empty-state .dot-grid{
  display:inline-grid;grid-template-columns:repeat(4,5px);gap:5px;
  margin-bottom:12px;
}
.empty-state .dot-grid i{width:5px;height:5px;background:var(--lime);border-radius:50%;}
.empty-state strong{display:block;color:var(--ink);font-size:16px;margin-bottom:4px;}
/* ===== Review wall ===== */
.review-wrap{
  display:grid;grid-template-columns:minmax(260px,340px) 1fr;gap:44px;
  align-items:stretch;
}
.score-panel{
  background:var(--dark);color:#fff;border-radius:16px;
  padding:32px 28px;
}
.score-panel .eyebrow{color:rgba(255,255,255,.56);}
.score-big{font-family:var(--mono);font-size:58px;line-height:1;margin:22px 0 10px;font-weight:700;}
.stars-row{display:flex;gap:3px;color:var(--amber);font-size:18px;margin-bottom:10px;}
.score-total{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:26px;}
.bar-list{display:flex;flex-direction:column;gap:9px;}
.bar-item{display:grid;grid-template-columns:34px 1fr 30px;align-items:center;gap:10px;font-size:12px;color:rgba(255,255,255,.7);}
.bar-track{height:5px;background:rgba(255,255,255,.14);border-radius:5px;overflow:hidden;}
.bar-fill{height:100%;border-radius:5px;background:var(--lime);}
.review-list{
  columns:2;column-gap:20px;
}
.review-card{
  break-inside:avoid;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:20px;margin-bottom:20px;
}
.review-card .stars-row{font-size:14px;margin-bottom:8px;color:var(--amber);}
.review-head{
  display:flex;align-items:center;gap:12px;margin-bottom:10px;
}
.review-avatar{
  width:36px;height:36px;border-radius:50%;background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:13px;font-weight:700;flex:0 0 auto;
}
.review-head b{display:block;font-size:14px;}
.review-head span{font-size:12px;color:var(--muted);}
.review-text{font-size:14px;color:#333A36;line-height:1.7;margin:0;}
/* ===== FAQ ===== */
.faq-wrap{
  display:grid;grid-template-columns:1fr 1.5fr;gap:64px;
  align-items:start;
}
.faq-side{
  max-width:340px;
}
.faq-side .section-title{margin-top:10px;}
.faq-cta{margin-top:30px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;cursor:pointer;font-weight:700;font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item .faq-q{
  display:flex;align-items:center;gap:12px;
}
.faq-index{font-family:var(--mono);color:var(--muted);font-size:12px;background:var(--bg-soft);width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;}
.faq-icon{
  position:relative;width:28px;height:28px;flex:0 0 auto;
  border:1px solid var(--line-strong);border-radius:50%;
  display:inline-block;transition:background .2s ease,border-color .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);left:50%;top:50%;
  width:12px;height:1.5px;transform:translate(-50%,-50%);transition:transform .3s ease;
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-item[open] .faq-icon{background:var(--lime);border-color:var(--lime);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(0deg);}
.faq-answer{
  margin:0;padding:0 44px 24px;color:var(--muted);font-size:14px;line-height:1.7;
}
/* ===== Download CTA ===== */
.cta-panel{
  background:var(--dark);border-radius:20px;color:#fff;
  padding:clamp(34px,5vw,62px);
  display:flex;flex-direction:column;gap:34px;position:relative;
  overflow:hidden;
}
.cta-panel::after{
  content:"H";position:absolute;right:-50px;bottom:-100px;
  font-size:320px;font-weight:800;line-height:1;color:rgba(255,255,255,.03);
  font-family:var(--mono);pointer-events:none;
}
.cta-title{max-width:720px;}
.cta-title h2{font-size:clamp(1.7rem,3vw,2.6rem);font-weight:800;margin:14px 0 10px;}
.cta-title p{color:rgba(255,255,255,.7);margin:0;}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;position:relative;z-index:1;}
.download-tile{
  display:flex;flex-direction:column;gap:14px;
  background:var(--dark-2);border:1px solid rgba(255,255,255,.12);
  border-radius:16px;padding:20px;min-height:150px;
  justify-content:space-between;transition:border-color .22s ease,transform .22s ease,background .22s ease;
}
.download-tile:hover{border-color:rgba(215,244,92,.45);background:#232B28;transform:translateY(-3px);}
.dl-top{display:flex;align-items:center;gap:12px;}
.dl-icon{width:44px;height:44px;border-radius:11px;background:var(--lime);color:var(--btn-dark-text);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;}
.dl-top b{display:block;font-size:16px;}
.dl-top span{font-size:12px;color:rgba(255,255,255,.64);}
.dl-meta{font-size:13px;color:rgba(255,255,255,.58);line-height:1.6;margin:0;}
.dl-meta code{font-family:var(--mono);color:var(--lime);background:rgba(215,244,92,.1);padding:0 3px;border-radius:3px;}
/* ===== Footer ===== */
.site-footer{
  background:var(--dark);color:rgba(238,242,237,.64);
  margin-top:clamp(50px,7vw,96px);
  font-size:14px;
}
.footer-top{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;padding:56px 0 40px;
}
.footer-brand .brand-link{color:#fff;}
.footer-brand .brand-name{font-size:18px;}
.footer-brand small{
  display:block;margin-top:2px;font-size:11px;
  font-weight:500;letter-spacing:.08em;color:rgba(255,255,255,.5);
}
.footer-about{color:rgba(238,242,237,.5);font-size:13px;line-height:1.7;margin:16px 0 0;max-width:300px;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin:4px 0 18px;}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(238,242,237,.6);transition:color .2s ease;font-size:14px;}
.footer-links a:hover{color:var(--lime);}
.footer-contact{list-style:none;display:flex;flex-direction:column;gap:12px;margin:0;}
.footer-contact li{display:flex;align-items:center;gap:8px;color:rgba(238,242,237,.6);font-size:13px;}
.footer-contact svg{width:16px;height:16px;opacity:.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(238,242,237,.42);
}
.footer-bottom a{color:rgba(238,242,237,.68);}
.footer-bottom a:hover{color:var(--lime);}
.mobile-download-bar{
  display:none;
}
/* ===== responsive ===== */
@media (max-width:1120px){
  .header-wrap{grid-template-columns:auto auto 1fr auto;gap:12px;}
  .desktop-primary{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-action{grid-column:auto;}
  .search-form{max-width:340px;}
  .mobile-nav.open{display:block;}
}
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr;padding-bottom:50px;}
  .terminal{max-width:520px;margin:0 auto;}
  .showcase-shell{grid-template-columns:1fr;}
  .slider-stage{min-height:auto;}
  .review-wrap{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .download-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px;}
  .post-grid{grid-template-columns:1fr 1fr;}
  .cta-panel::after{display:none;}
}
@media (max-width:760px){
  .header-wrap{
    grid-template-columns:1fr auto auto;
    gap:8px;padding-top:8px;padding-bottom:8px;
  }
  .header-search{
    grid-column:1/-1;grid-row:2;max-width:none;
  }
  .header-action{display:none;}
  .header-search{order:3;}
  .brand-name{font-size:16px;}
  .nav-list a{padding:0 10px;font-size:13px;}
  .desktop-primary,.desktop-secondary{display:none;}
  .menu-toggle{display:inline-flex;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .ledger-row{
    grid-template-columns:1fr;
    gap:10px;padding:18px;
  }
  .ledger-cta{text-align:left;}
  .post-grid{grid-template-columns:1fr;}
  .feature-list{grid-template-columns:1fr 1fr;}
  .review-list{columns:1;}
  .download-tile{min-height:0;padding:18px;}
  .footer-top{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center;}
  .mobile-download-bar{
    display:block;position:fixed;left:0;right:0;bottom:0;z-index:70;
    padding:12px 16px calc(12px + env(safe-area-inset-bottom));
    background:rgba(244,243,238,.94);backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
  }
  body{padding-bottom:72px;}
  .showcase-info{padding:20px 18px;}
  .search-sheet{left:0;right:0;}
}
@media (max-width:420px){
  .container{padding-left:18px;padding-right:18px;}
  .hero-btn-row{flex-direction:column;align-items:stretch;}
  .hero-btn-row .btn{width:100%;}
  .feature-list{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --bg: #F4F3EE;
  --paper: #FFFFFF;
  --ink: #161A18;
  --muted: #65736C;
  --soft: #3C453F;
  --graphite: #0F1312;
  --graphite-2: #1A211E;
  --line: rgba(25,30,28,0.12);
  --line-strong: rgba(25,30,28,0.24);
  --lime: #D7F45C;
  --lime-hover: #C9E84F;
  --lime-soft: rgba(215,244,92,0.2);
  --amber: #F5B14C;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-xs: 0 2px 8px rgba(15,19,18,0.04);
  --shadow-sm: 0 6px 24px rgba(15,19,18,0.06);
  --shadow-md: 0 8px 40px rgba(15,19,18,0.08);
  --shadow-pop: 0 20px 60px rgba(15,19,18,0.12);
  --ease: all .22s ease;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei UI", "Segoe UI", sans-serif;
}
*,*::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;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;padding:0}
input{font-family:inherit}
.container{
  width:min(1200px, 100%);
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:720px){
  .container{padding:0 16px}
}
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(244,243,238,.88);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:border-color .22s ease, box-shadow .22s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 12px 40px rgba(15,19,18,.05);
}
.header-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(260px,520px) minmax(0,1fr);
  align-items:center;
  gap:16px;
  min-height:72px;
}
.header-left,.header-right,.header-search{display:flex;align-items:center}
.header-left{gap:26px}
.header-right{justify-content:flex-end;gap:16px}
.header-search{position:relative;justify-content:center}

.brand-link{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
  color:var(--ink);
}
.brand-icon{width:36px;height:36px;flex:none}
.brand-name{
  font-weight:800;
  font-size:18px;
  line-height:1.3;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-list a{
  display:inline-block;
  position:relative;
  padding:10px 13px;
  border-radius:8px;
  font-size:14.5px;
  font-weight:600;
  color:var(--soft);
  white-space:nowrap;
  transition:var(--ease);
}
.nav-list a:hover{
  color:var(--ink);
  background:rgba(215,244,92,.24);
}
.nav-list a.active{color:var(--ink)}
.nav-list a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--lime);
}

.search-form{
  display:flex;
  align-items:center;
  width:100%;
  max-width:520px;
  height:46px;
  background:var(--paper);
  border:1px solid rgba(15,19,18,.14);
  border-radius:48px;
  padding:0 12px 0 16px;
  transition:var(--ease);
}
.search-form:focus-within{
  border-color:var(--lime-hover);
  box-shadow:0 0 0 4px var(--lime-soft);
}
.search-icon{width:18px;height:18px;color:var(--muted);flex:none;margin-right:8px}
.search-form input{
  flex:1;
  min-width:0;
  border:0;
  outline:0;
  height:40px;
  background:transparent;
  font-size:14px;
  color:var(--ink);
}
.search-form input::placeholder{color:var(--muted)}
.search-key{
  font:600 11px/1 var(--font);
  color:var(--muted);
  background:#F0EFE9;
  padding:4px 7px;
  border-radius:6px;
  margin-left:8px;
  white-space:nowrap;
}
.search-sheet{
  position:absolute;
  top:calc(100% + 12px);
  left:0;
  right:0;
  width:100%;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px;
  box-shadow:var(--shadow-pop);
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:var(--ease);
  z-index:80;
}
.header-search:focus-within .search-sheet,
.search-sheet.open{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.sheet-label{
  padding:8px 12px 6px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}
.suggest-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:9px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  transition:var(--ease);
}
.suggest-item:hover{background:rgba(215,244,92,.26)}
.suggest-icon{
  display:inline-grid;
  place-items:center;
  width:26px;
  height:26px;
  border-radius:8px;
  background:#F0EFE9;
  color:var(--ink);
  font-weight:700;
  font-size:14px;
  flex:none;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  line-height:1;
  white-space:nowrap;
  border:1.5px solid transparent;
  transition:var(--ease);
}
.btn-primary{
  background:var(--lime);
  color:#0A0F0D;
  border-color:var(--lime);
}
.btn-primary:hover{
  background:var(--lime-hover);
  border-color:var(--lime-hover);
  transform:translateY(-1px);
}
.btn-dark{
  background:var(--graphite);
  color:#fff;
  border-color:var(--graphite);
}
.btn-dark:hover{
  background:#242C28;
  border-color:#242C28;
  transform:translateY(-1px);
}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:rgba(15,19,18,.28);
}
.btn-ghost:hover{
  border-color:var(--ink);
  background:#fff;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-xl{height:52px;padding:0 34px;font-size:16px}
.btn-lg{height:48px;padding:0 28px}
.header-download{
  height:40px;
  padding:0 18px;
  font-size:14px;
  flex-shrink:0;
}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:11px;
  place-items:center;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  background:transparent;
  transition:var(--ease);
}
.menu-toggle span{
  display:block;
  width:19px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .22s ease, opacity .22s ease;
}
.site-header.menu-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.menu-open .menu-toggle span:nth-child(2){opacity:0}
.site-header.menu-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  padding:10px 0 20px;
  background:rgba(244,243,238,.96);
}
.site-header.menu-open .mobile-panel{display:block}
.mobile-panel .mobile-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:4px;
  padding:12px 0 4px;
}
.mobile-panel .mobile-nav a{
  display:block;
  padding:12px 14px;
  border-radius:10px;
  font-weight:600;
  font-size:15px;
  color:var(--ink);
}
.mobile-panel .mobile-nav a:hover{background:rgba(215,244,92,.3)}
.mobile-panel .mobile-cta{padding-top:12px}
.mobile-panel .mobile-cta a{width:100%}

/* 文章主体 */
.article-zone{padding:44px 0 56px}
.crumb-line{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:20px;
  font-size:13px;
  color:var(--muted);
}
.crumb-line a{color:var(--muted);transition:var(--ease)}
.crumb-line a:hover{color:var(--ink)}
.crumb-line .sep{opacity:.5}
.crumb-line .current{color:var(--soft);font-weight:600}
.post-paper{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-xs);
  padding:clamp(30px,5.5vw,64px);
  overflow:hidden;
}
.post-paper::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:5px;
  height:100%;
  background:var(--lime);
}
.post-head{
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.post-kicker{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:16px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:30px;
  padding:0 13px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  background:var(--lime);
  color:#0A0F0D;
}
.badge-date{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--muted);
  font-size:13px;
}
.post-title{
  margin:0;
  font-size:clamp(1.8rem, 3.6vw, 3rem);
  line-height:1.24;
  font-weight:800;
  letter-spacing:-.02em;
}
.post-abstract{
  margin-top:24px;
  padding:18px 22px;
  border-left:3px solid var(--lime);
  border-radius:0 10px 10px 0;
  background:#EFEEE8;
  font-size:15px;
  line-height:1.8;
  color:var(--soft);
  display:-webkit-box;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:4;
  overflow:hidden;
}
.post-body{
  padding-top:34px;
  font-size:16px;
  line-height:1.9;
  color:#20241F;
}
.post-body p{
  margin:0 0 22px;
  word-break:break-word;
}
.post-body h2,
.post-body h3,
.post-body h4{
  margin:38px 0 14px;
  font-weight:750;
  line-height:1.35;
  letter-spacing:-.015em;
}
.post-body h2{font-size:1.7rem}
.post-body h3{font-size:1.3rem}
.post-body h4{font-size:1.12rem}
.post-body ul{
  margin:0 0 22px;
  padding-left:1.2em;
  list-style:disc;
}
.post-body ol{
  margin:0 0 22px;
  padding-left:1.3em;
  list-style:decimal;
}
.post-body li{margin-bottom:7px}
.post-body a{
  color:#506D2A;
  text-decoration:underline;
  text-underline-offset:3px;
  transition:var(--ease);
}
.post-body a:hover{color:var(--ink)}
.post-body img{
  width:auto;
  max-width:100%;
  height:auto;
  border-radius:var(--radius);
  margin:26px 0;
}
.post-body figure{
  margin:26px 0;
  padding:0;
}
.post-body figure img{margin:0}
.post-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--muted);
}
.post-body blockquote{
  margin:26px 0;
  padding:16px 22px;
  background:#F0EFE9;
  border-left:3px solid var(--lime);
  border-radius:0 10px 10px 0;
  color:var(--soft);
}
.post-body blockquote p{margin:0}
.post-body code{
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:.9em;
  background:#EFEEE8;
  padding:3px 7px;
  border-radius:6px;
  color:#3C3620;
}
.post-body pre{
  background:var(--graphite);
  color:#EDF1EC;
  padding:22px;
  border-radius:12px;
  overflow-x:auto;
  margin:26px 0;
  line-height:1.7;
}
.post-body pre code{
  background:transparent;
  color:inherit;
  padding:0;
}
.post-body table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:26px 0;
  font-size:14.5px;
  line-height:1.7;
}
.post-body th,
.post-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  white-space:nowrap;
}
.post-body th{
  background:#F0EFE9;
  font-weight:700;
}
.post-foot{
  margin-top:50px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.tag-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:9px;
}
.tag-row .tag-item{
  display:inline-block;
  padding:7px 15px;
  background:#F0EFE9;
  border:1px solid transparent;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--soft);
  transition:var(--ease);
}
.tag-row .tag-item:hover{
  border-color:var(--lime);
  background:rgba(215,244,92,.22);
  color:var(--ink);
}
.post-toolbar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}
.post-toolbar-left{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.post-not-found{
  padding:50px 10px 40px;
  text-align:center;
}
.not-found-empty{
  display:inline-grid;
  place-items:center;
  width:86px;
  height:86px;
  border-radius:22px;
  background:#EFEEE8;
  font-size:34px;
  color:var(--muted);
  margin-bottom:20px;
}
.post-not-found h2{
  margin:0 0 8px;
  font-size:22px;
  font-weight:750;
}
.post-not-found p{
  margin:0 0 22px;
  color:var(--muted);
}

/* 相关推荐 */
.related-zone{
  background:var(--paper);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:86px 0 88px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:38px;
}
.section-tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  color:#48554E;
  background:#EFEEE8;
  border-radius:999px;
  padding:6px 12px;
  margin-bottom:10px;
}
.section-head h2{
  margin:0;
  font-size:clamp(1.5rem,2.6vw,2.3rem);
  line-height:1.25;
  font-weight:750;
  letter-spacing:-.02em;
}
.text-link{
  position:relative;
  font-weight:700;
  font-size:15px;
  color:var(--ink);
  padding-bottom:4px;
  white-space:nowrap;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--lime);
}
.text-link:hover::after{background:var(--graphite)}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rel-card{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:var(--ease);
}
.rel-card:hover{
  transform:translateY(-3px);
  border-color:rgba(15,19,18,.25);
  box-shadow:var(--shadow-sm);
}
.rel-card .thumb{
  display:block;
  aspect-ratio:16/10;
  overflow:hidden;
  background:#E6E4DC;
}
.rel-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .rel-content{padding:22px 20px 24px}
.rel-card .meta-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  color:var(--muted);
  margin-bottom:10px;
}
.rel-card .meta-line .dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--lime);
}
.rel-card h3{
  margin:0;
  font-size:18px;
  line-height:1.5;
}
.rel-card h3 a{
  color:var(--ink);
  transition:var(--ease);
}
.rel-card h3 a:hover{color:#6A872F}
.rel-card p{
  margin-top:10px;
  font-size:14px;
  color:var(--soft);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

/* 帮助导航 */
.support-band{
  padding:0 0 86px;
  background:var(--bg);
}
.support-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  margin-top:-32px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-xs);
  padding:30px 32px;
}
.support-left h2{
  margin:0 0 6px;
  font-size:clamp(1.2rem,2vw,1.75rem);
  font-weight:750;
}
.support-left p{
  font-size:14px;
  color:var(--muted);
}
.support-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}

/* 下载尾屏 */
.download-tail{
  position:relative;
  background:var(--graphite);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:92px 0 96px;
  overflow:hidden;
}
.download-tail::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(15,19,18,.9);
}
.download-tail .container{position:relative;z-index:2}
.tail-grid{
  text-align:center;
  max-width:900px;
  margin:0 auto;
}
.tail-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1px solid rgba(255,255,255,.3);
  border-radius:999px;
  padding:6px 14px;
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.tail-badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--lime);
  animation:pulse 1.8s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1}
  50%{opacity:.35}
}
.tail-title{
  font-size:clamp(1.9rem,4.2vw,3rem);
  line-height:1.2;
  font-weight:800;
  margin:0 0 12px;
}
.tail-sub{
  font-size:16px;
  color:rgba(255,255,255,.72);
  margin:0 auto 36px;
  max-width:620px;
}
.tail-platforms{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:26px;
}
.platform-chip{
  display:inline-flex;
  align-items:center;
  gap:9px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  padding:10px 17px;
  font-size:14px;
  transition:var(--ease);
}
.platform-chip:hover{
  background:rgba(215,244,92,.12);
  border-color:var(--lime);
}
.tail-actions{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
.tail-note{
  margin-top:22px;
  font-size:12px;
  color:rgba(255,255,255,.5);
  letter-spacing:.04em;
}
.btn-on-dark{
  background:var(--lime);
  color:#0A0F0D;
  border-color:var(--lime);
}
.btn-on-dark:hover{
  background:var(--lime-hover);
  border-color:var(--lime-hover);
}
.btn-outline-light{
  border-color:rgba(255,255,255,.6);
  color:#fff;
  background:transparent;
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
}

/* 页脚 */
.site-footer{
  background:var(--graphite);
  color:rgba(255,255,255,.64);
  font-size:14px;
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:42px;
  padding:70px 0 54px;
}
.footer-brand{margin-bottom:16px}
.footer-brand .brand-link{color:#fff}
.footer-about{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.58);
  max-width:320px;
}
.footer-title{
  margin:0 0 20px;
  color:#fff;
  font-size:15px;
  font-weight:750;
}
.footer-links li{list-style:none;margin-bottom:10px}
.footer-links a{
  color:rgba(255,255,255,.58);
  transition:var(--ease);
  font-size:14px;
}
.footer-links a:hover{color:var(--lime)}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  list-style:none;
  margin-bottom:12px;
  color:rgba(255,255,255,.58);
  font-size:14px;
}
.footer-contact svg{
  width:16px;
  height:16px;
  flex:none;
  color:var(--lime);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
.footer-bottom a{color:rgba(255,255,255,.5);transition:var(--ease)}
.footer-bottom a:hover{color:var(--lime)}
.footer-domain{
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:12px;
}

/* 浮动下载按钮 */
.float-download{
  position:fixed;
  right:26px;
  bottom:26px;
  z-index:70;
  box-shadow:var(--shadow-pop);
}
.float-download .float-badge-dot{
  position:absolute;
  top:-3px;
  right:-3px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--amber);
  border:3px solid #fff;
}
.mobile-bottom-cta{display:none}

/* 通用焦点 */
a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline:2px solid var(--lime-hover);
  outline-offset:3px;
}
::selection{background:rgba(215,244,92,.55);color:var(--ink)}

/* 响应式 */
@media (max-width:1180px){
  .brand-name{font-size:16px}
  .nav-list a{padding:9px 10px}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px}
}
@media (max-width:1024px){
  .header-wrap{
    grid-template-columns:minmax(0,1fr) auto;
    gap:6px 16px;
    min-height:66px;
  }
  .header-search{
    grid-column:1 / -1;
    grid-row:2;
    justify-content:stretch;
    padding:2px 0 14px;
  }
  .search-form{max-width:none}
  .menu-toggle{display:inline-flex}
  .desktop-primary,
  .desktop-secondary{display:none}
  .nav-panel{display:none}
  .mobile-panel .mobile-nav{display:grid}
  .related-grid{grid-template-columns:repeat(3,1fr);gap:16px}
  .footer-top{grid-template-columns:1.3fr .9fr 1fr 1.1fr}
}
@media (max-width:880px){
  .article-zone{padding:32px 0 48px}
  .post-paper{padding:36px 30px}
  .related-zone{padding:62px 0 66px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .section-head{align-items:flex-start;flex-direction:column;gap:16px}
  .support-wrap{flex-direction:column;align-items:flex-start}
  .support-actions{width:100%}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px;padding:52px 0 40px}
  .download-tail{padding:70px 0}
  .float-download{display:none}
}
@media (max-width:600px){
  .header-download span.full-label{display:none}
  .header-download{
    padding:0 16px;
    font-size:14px;
  }
  .mobile-panel .mobile-nav{grid-template-columns:1fr}
  .mobile-bottom-cta{
    display:block;
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:80;
    background:rgba(244,243,238,.94);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-top:1px solid var(--line);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  }
  .mobile-bottom-cta a{
    display:flex;
    justify-content:center;
    align-items:center;
    width:100%;
    height:48px;
  }
  body{padding-bottom:72px}
  .related-grid{grid-template-columns:1fr}
  .support-wrap{padding:22px 20px}
  .tail-actions .btn{width:100%}
  .tail-platforms .platform-chip{flex:1;justify-content:center}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:46px 0 32px}
  .footer-brand .brand-name{font-size:17px}
  .post-abstract{line-clamp:3;-webkit-line-clamp:3}
}
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category3 */
:root{
  --bg:#F4F3EE;
  --ink:#161A18;
  --muted:#65736C;
  --dark:#0F1312;
  --dark-2:#1A211E;
  --line:rgba(25,30,28,.12);
  --white:#FFFFFF;
  --lime:#D7F45C;
  --lime-2:#C9E84F;
  --amber:#F5B14C;
  --radius:12px;
  --radius-pill:999px;
  --shadow-soft:0 8px 40px rgba(15,19,18,.06);
  --transition:.22s ease;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei UI","Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
input{font-family:inherit;border:none;outline:none}
::selection{background:var(--lime);color:var(--dark)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:110px 0}
.section.compact{padding:72px 0}
.bg-cream{background:var(--bg)}
.bg-white{background:var(--white)}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:6px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-weight:700;
  font-size:15px;
  height:46px;
  border-radius:var(--radius-pill);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{
  background:var(--lime);
  color:#0A0F0D;
  padding:0 26px;
  border:1px solid transparent;
}
.btn-primary:hover{background:var(--lime-2);transform:translateY(-1px)}
.btn-dark{
  background:var(--dark);
  color:#F4F3EE;
  padding:0 26px;
  border:1px solid var(--dark);
}
.btn-dark:hover{background:var(--dark-2);transform:translateY(-1px)}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border:1.5px solid rgba(15,19,18,.3);
  padding:0 24px;
}
.bg-dark .btn-ghost{color:#EDEFED;border-color:rgba(255,255,255,.32)}
.btn-ghost:hover{border-color:rgba(15,19,18,.7);background:rgba(255,255,255,.06)}
.btn-slim{height:36px;padding:0 16px;font-size:14px}
.label-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.24);
  color:#EDEFE6;
  font-size:12px;
  letter-spacing:.08em;
  font-weight:600;
  background:rgba(255,255,255,.03);
}
.label-pill .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 0 rgba(215,244,92,.7);
  animation:pulseDot 2s infinite;
}
@keyframes pulseDot{
  0%{box-shadow:0 0 0 0 rgba(215,244,92,.6)}
  70%{box-shadow:0 0 0 6px rgba(215,244,92,0)}
  100%{box-shadow:0 0 0 0 rgba(215,244,92,0)}
}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:38px;
}
.section-eyebrow{
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--muted);
  margin-bottom:8px;
}
.section-title{
  font-size:clamp(1.6rem,3vw,2.6rem);
  line-height:1.18;
  font-weight:750;
  margin:0;
  letter-spacing:0;
}
.section-desc{
  color:var(--muted);
  max-width:620px;
  margin:14px 0 0;
}
.section-extra{margin-left:auto;flex-shrink:0}
/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(244,243,238,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:border-color .22s ease,box-shadow .22s ease;
  height:72px;
}
.site-header.scrolled{
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px rgba(15,19,18,.03);
}
.site-header .container{height:72px}
.header-wrap{
  display:grid;
  grid-template-columns:auto auto minmax(250px,520px) auto auto minmax(0,auto);
  grid-template-rows:72px;
  align-items:center;
  column-gap:12px;
}
.brand-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:18px;
  color:var(--ink);
  white-space:nowrap;
}
.brand-icon{width:36px;height:36px;flex-shrink:0}
.brand-name{letter-spacing:-.01em}
.nav-panel.desktop-primary{grid-column:2}
.nav-panel.desktop-secondary{grid-column:5}
.nav-list{display:flex;align-items:center;gap:16px}
.nav-list a{
  display:inline-flex;
  align-items:center;
  height:42px;
  padding:0 4px;
  color:var(--ink);
  font-size:15px;
  font-weight:500;
  position:relative;
  white-space:nowrap;
  transition:color .2s ease,opacity .2s ease;
}
.nav-list a:hover{color:var(--muted)}
.nav-list a.active{font-weight:700}
.nav-list a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  width:20px;
  height:2px;
  background:var(--lime-2);
  transform:translateX(-50%);
  border-radius:3px;
}
.nav-list a.active:hover{color:var(--ink)}
.header-search{
  grid-column:3;
  position:relative;
  min-width:0;
  justify-self:center;
  width:100%;
}
.search-form{
  position:relative;
  display:flex;
  align-items:center;
  background:var(--white);
  border:1px solid rgba(15,19,18,.12);
  border-radius:var(--radius-pill);
  height:46px;
  padding:0 12px 0 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form .search-icon{width:18px;height:18px;color:var(--muted);flex-shrink:0}
.search-form input{
  flex:1;
  min-width:0;
  border:none;
  background:transparent;
  font-size:14px;
  padding:0 10px;
}
.search-form input::placeholder{color:#8A948E}
.search-key{
  font-size:11px;
  color:var(--muted);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 7px;
  flex-shrink:0;
  letter-spacing:.02em;
  font-weight:600;
}
.header-search .search-form:focus-within{
  border-color:var(--lime);
  box-shadow:0 0 0 4px rgba(215,244,92,.2);
}
.header-download{
  grid-column:6;
  display:inline-flex;
  background:var(--dark);
  color:#F4F3EE;
  border-radius:var(--radius-pill);
  height:42px;
  padding:0 18px;
  align-items:center;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  transition:background .22s ease,transform .22s ease;
  justify-self:end;
}
.header-download:hover{background:var(--dark-2);transform:translateY(-1px)}
.search-sheet{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  right:0;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:0 20px 60px rgba(15,19,18,.1);
  padding:12px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:.18s ease;
  z-index:50;
}
.search-sheet.open{opacity:1;visibility:visible;transform:translateY(0)}
.sheet-label{
  font-size:12px;
  padding:8px 10px 6px;
  color:var(--muted);
  letter-spacing:.04em;
}
.suggest-item{
  display:flex;
  align-items:center;
  gap:12px;
  border-radius:10px;
  padding:9px 10px;
  font-size:14px;
  color:var(--ink);
  transition:background .18s ease;
}
.suggest-item:hover{background:rgba(215,244,92,.28)}
.suggest-icon{
  width:28px;height:28px;
  border-radius:8px;
  background:var(--bg);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--dark);
  font-weight:700;
}
.nav-toggle{
  display:none;
  grid-column:4;
  grid-row:1;
  width:44px;
  height:44px;
  border-radius:10px;
  justify-self:end;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  background:transparent;
}
.nav-toggle span{width:20px;height:2px;background:var(--ink);border-radius:3px;transition:.22s ease}
.nav-toggle:hover{background:rgba(25,30,28,.06)}
/* ---------- 分类页 Banner ---------- */
.category-banner{
  position:relative;
  color:#F0F1EB;
  overflow:hidden;
  background:var(--dark);
}
.category-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(215,244,92,.04) 1px,transparent 1px),
    linear-gradient(rgba(215,244,92,.035) 1px,transparent 1px);
  background-size:54px 54px;
  pointer-events:none;
}
.category-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.22;
  pointer-events:none;
}
.category-banner .container{
  position:relative;
  z-index:1;
  padding-top:64px;
  padding-bottom:96px;
}
.banner-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.banner-copy{
  max-width:680px;
}
.banner-copy h1{
  font-size:clamp(2rem,4.4vw,3.6rem);
  font-weight:800;
  color:#F5F4E8;
  line-height:1.2;
  letter-spacing:-.02em;
  margin:22px 0 16px;
}
.banner-copy p{
  font-size:16px;
  color:rgba(240,241,235,.78);
  max-width:540px;
  line-height:1.8;
  margin:0 0 28px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.banner-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.banner-tag{
  font-size:12px;
  color:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.14);
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.03);
}
.terminal-card{
  border-radius:16px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(12px);
  padding:22px;
}
.terminal-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:12px;
  border-bottom:1px solid rgba(255,255,255,.1);
  font-size:13px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.68);
}
.terminal-dots{display:flex;align-items:center;gap:6px}
.terminal-dots i{width:9px;height:9px;border-radius:50%;display:inline-block}
.terminal-dots i:nth-child(1){background:var(--amber)}
.terminal-dots i:nth-child(2){background:rgba(255,255,255,.28)}
.terminal-dots i:nth-child(3){background:var(--lime)}
.notice-list{padding:12px 0 6px}
.notice-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.12);
  font-size:13.5px;
}
.notice-item:last-child{border-bottom:none}
.notice-status{
  flex-shrink:0;
  font-size:11px;
  font-weight:600;
  padding:3px 8px;
  border-radius:var(--radius-pill);
  background:rgba(215,244,92,.13);
  color:var(--lime);
}
.notice-status.new{background:rgba(245,177,76,.15);color:var(--amber)}
.notice-main{display:flex;flex-direction:column;min-width:0}
.notice-main strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(255,255,255,.9)}
.notice-main span{color:rgba(255,255,255,.52);font-size:12px}
/* ---------- 数据速览 ---------- */
.stats-strip{
  border-bottom:1px solid var(--line);
  background:var(--bg);
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  padding:42px 0;
}
.stat-item{padding:6px 24px;border-left:1px solid var(--line)}
.stat-item:first-child{border-left:none;padding-left:0}
.stat-number{
  font-size:2rem;
  font-weight:800;
  letter-spacing:-.04em;
  color:rgba(215,244,92,.9);
  background:rgba(215,244,92,.08);
  display:inline-block;
  border-radius:12px;
  padding:4px 12px;
}
.stat-number small{font-size:1.1rem;font-weight:700}
.stat-label{
  margin-top:8px;
  font-size:13px;
  color:var(--muted);
}
/* ---------- 数据库表格区 ---------- */
.db-section{background:var(--bg)}
.database-panel{
  background:#FDFCF8;
  border:1px solid rgba(15,19,18,.1);
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--shadow-soft);
}
.db-table{width:100%;border-collapse:collapse;min-width:880px}
.db-table th{
  background:#F0EFE9;
  color:var(--muted);
  font-size:13px;
  font-weight:600;
  text-align:left;
  padding:0 16px;
  height:50px;
  border-bottom:1px solid rgba(25,30,28,.14);
  white-space:nowrap;
}
.db-table td{
  padding:8px 16px;
  border-bottom:1px solid rgba(25,30,28,.08);
  vertical-align:middle;
  height:56px;
  color:var(--ink);
  font-size:14.5px;
}
.db-table tr:last-child td{border-bottom:none}
.db-table tbody tr{transition:background .16s ease}
.db-table tbody tr:hover{background:rgba(255,255,255,.75)}
.db-table tbody tr:hover td:first-child{box-shadow:inset 3px 0 var(--lime)}
.table-main-title{display:flex;flex-direction:column;gap:3px;min-width:260px}
.table-main-title strong{font-size:14.5px;font-weight:700;line-height:1.35}
.table-main-title small{font-size:12px;color:var(--muted)}
.chip{
  font-size:11.5px;
  font-weight:600;
  padding:3px 10px;
  border-radius:100px;
  background:rgba(215,244,92,.28);
  color:#2A3320;
  white-space:nowrap;
}
.chip.outline{
  background:transparent;
  border:1px solid var(--line);
  color:var(--muted);
  font-weight:500;
}
.row-action{display:flex;align-items:center;gap:6px;white-space:nowrap}
.link-more{
  font-weight:700;
  font-size:13px;
  padding:5px 10px;
  border-radius:8px;
  background:var(--dark);
  color:var(--white);
  transition:background .2s ease;
}
.link-more:hover{background:#242C28}
.link-down{
  font-weight:700;
  font-size:13px;
  padding:5px 10px;
  border-radius:100px;
  background:var(--lime);
  color:#0A0F0D;
  transition:background .2s ease;
}
.link-down:hover{background:var(--lime-2)}
.table-hint{
  font-size:13px;
  color:var(--muted);
  padding:14px 16px 0;
  border-top:1px solid rgba(25,30,28,.06);
  display:flex;
  gap:8px;
  align-items:center;
}
.mobile-release-list{
  display:none;
}
/* ---------- 公告看点 ---------- */
.notice-spotlight{
  background:var(--white);
  border-bottom:1px solid var(--line);
}
.spotlight-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.spotlight-media{border-radius:18px;overflow:hidden;background:var(--bg)}
.spotlight-media img{aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.spotlight-media:hover img{transform:scale(1.015)}
.spotlight-body h2{margin:0 0 14px;font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.2}
.spotlight-body .desc{color:var(--muted);max-width:520px;margin-bottom:24px}
.spot-visual-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.spot-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.spot-icon{
  width:30px;
  height:30px;
  border-radius:8px;
  background:rgba(215,244,92,.3);
  color:#0A0F0D;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  flex-shrink:0;
  font-size:14px;
}
.spot-body strong{display:block;font-size:14.5px}
.spot-body span{color:var(--muted);font-size:13.5px}
/* ---------- 帮助流程 ---------- */
.guide-section{background:var(--bg)}
.guide-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  align-items:center;
}
.left-guide .section-eyebrow{color:var(--muted)}
.left-guide h2{font-size:clamp(1.6rem,2.8vw,2.4rem);font-weight:750;line-height:1.2;margin:0 0 16px}
.left-guide p{color:var(--muted);margin:0 0 28px}
.right-step{display:flex;flex-direction:column}
.step-line{
  position:relative;
  padding-left:96px;
  padding-bottom:28px;
  border-left:2px solid rgba(25,30,28,.12);
  margin-left:18px;
}
.step-line:last-child{border-left-color:transparent}
.step-no{
  position:absolute;
  left:-19px;
  top:-4px;
  width:36px;
  height:36px;
  border-radius:50%;
  background:var(--dark);
  color:var(--lime);
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
}
.step-line h3{font-size:16px;font-weight:700;margin:0 0 5px}
.step-line p{margin:0;font-size:14px;color:var(--muted)}
/* ---------- FAQ 手风琴 ---------- */
.faq-section{background:var(--bg);border-top:1px solid var(--line)}
.faq-layout{
  display:grid;
  grid-template-columns:.9fr 1.6fr;
  gap:70px;
}
.faq-intro .section-eyebrow{letter-spacing:.1em}
.faq-intro h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.18;margin:8px 0 16px}
.faq-intro > p{color:var(--muted);max-width:320px;margin-bottom:26px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-trigger{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 0;
  text-align:left;
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  transition:color .2s ease;
}
.faq-trigger:hover{color:var(--muted)}
.faq-index{
  color:var(--muted);
  font-size:12px;
  letter-spacing:.04em;
  font-weight:600;
}
.faq-question{flex:1;font-size:16px;font-weight:700}
.faq-icon{
  position:relative;
  width:20px;height:20px;
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--muted);
  border-radius:3px;
  transition:transform .22s ease,background .22s ease;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .28s ease;
}
.faq-panel > div{overflow:hidden}
.faq-item.open .faq-panel{grid-template-rows:1fr}
.faq-answer{padding:0 0 22px 0;color:var(--muted);font-size:14.5px;line-height:1.85}
/* ---------- 尾屏 CTA ---------- */
.cta-panel{
  position:relative;
  background:var(--dark);
  color:var(--white);
  padding:92px 0;
  text-align:center;
  overflow:hidden;
}
.cta-panel::before{
  content:"H";
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  font-size:240px;
  font-weight:800;
  color:rgba(22,27,24,.16);
  line-height:1;
  pointer-events:none;
}
.cta-panel .container{position:relative;z-index:1}
.cta-panel h2{
  font-size:clamp(1.9rem,3.8vw,3.2rem);
  line-height:1.18;
  font-weight:800;
  margin:0 0 16px;
  letter-spacing:-.02em;
}
.cta-panel p{color:rgba(255,255,255,.68);max-width:620px;margin:0 auto 34px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  font-size:14px;
  padding:72px 0 0;
}
.site-footer .brand-link{color:var(--white)}
.footer-top{
  display:grid;
  grid-template-columns:1.2fr .8fr .8fr .8fr;
  gap:48px;
  padding-bottom:52px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;margin:0;color:rgba(255,255,255,.52);max-width:300px}
.footer-title{
  font-size:14px;
  color:#EAECE6;
  margin:4px 0 20px;
  font-weight:700;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.6);transition:color .2s ease,transform .2s ease;width:fit-content}
.footer-links a:hover{color:var(--lime);transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:16px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.6)}
.footer-contact svg{width:19px;height:19px;flex-shrink:0;color:rgba(255,255,255,.45)}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:22px 0;
  color:rgba(255,255,255,.42);
  font-size:13px;
  flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.6);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.footer-bottom a:hover{color:var(--lime);border-color:var(--lime)}
/* ---------- 响应式 ---------- */
@media(max-width:1200px){
  .header-wrap{grid-template-columns:auto auto minmax(260px,460px) auto auto;column-gap:8px}
  .header-download{display:none}
  .nav-panel.desktop-secondary{grid-column:4}
  .header-search{grid-column:3}
  .nav-panel.desktop-primary{grid-column:2}
}
@media(max-width:1060px){
  .site-header{height:auto}
  .site-header .container{height:auto;padding-top:0;padding-bottom:0}
  .header-wrap{
    grid-template-columns:auto minmax(0,1fr) auto auto;
    grid-template-rows:64px auto;
    column-gap:10px;
    min-height:64px;
  }
  .brand-link{grid-column:1;grid-row:1}
  .header-search{grid-column:2;grid-row:1;max-width:420px;justify-self:end}
  .nav-toggle{display:flex;grid-column:3;grid-row:1}
  .header-download{grid-column:4;grid-row:1;display:inline-flex;height:36px;padding:0 14px;font-size:13px}
  .nav-panel{
    grid-column:1/-1;
    grid-row:2;
    display:none;
    background:var(--bg);
    width:100%;
    margin-left:0;
    border-radius:0;
  }
  .site-nav-open .nav-panel{display:block}
  .site-nav-open .nav-panel + .nav-panel{border-top:1px solid var(--line)}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 0;
    width:100%;
  }
  .nav-list a{height:48px;padding:0 4px;justify-content:flex-start}
  .search-sheet{top:calc(100% + 6px)}
  .section{padding:72px 0}
  .stats-grid{gap:8px}
  .spotlight-grid,.guide-grid{gap:40px}
  .faq-layout{grid-template-columns:1fr;gap:20px}
  .faq-intro p{max-width:600px}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:900px){
  .banner-grid{grid-template-columns:1fr;gap:38px}
  .category-banner .container{padding-top:52px;padding-bottom:72px}
  .terminal-card{max-width:560px}
}
@media(max-width:768px){
  .site-header .header-wrap{grid-template-rows:auto auto}
  .header-search{grid-column:1/-1;grid-row:2;width:100%;max-width:100%;order:3;padding-bottom:12px;justify-self:stretch}
  .brand-link{grid-column:1;grid-row:1}
  .nav-toggle{grid-column:2;grid-row:1}
  .header-download{grid-column:3;grid-row:1;padding:0 12px;font-size:12px;height:34px}
  .brand-name{font-size:16px}
  .brand-icon{width:32px;height:32px}
  .nav-panel{grid-row:auto}
  .section{ padding:60px 0}
  .stats-grid{grid-template-columns:1fr}
  .stat-item{border-left:none;padding:12px 0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:none}
  .section-head{align-items:flex-start;flex-direction:column;margin-bottom:28px}
  .section-extra{margin-left:0}
  .spotlight-grid,.guide-grid{grid-template-columns:1fr}
  .left-guide{margin-bottom:24px}
  .step-line{padding-left:64px}
  .step-line h3{font-size:15px}
  .step-line p{line-height:1.7}
  .faq-question{font-size:15px}
  .faq-trigger{padding:18px 0}
  .banner-actions .btn{flex:1 1 100%}
}
@media(max-width:600px){
  .container{padding:0 18px}
  body{font-size:15px}
  .header-wrap{
    grid-template-columns:auto minmax(0,1fr) auto;
  }
  .brand-name{overflow:hidden;text-overflow:ellipsis;max-width:120px}
  .header-download{max-width:100px;white-space:nowrap;overflow:hidden}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-about{max-width:100%}
  .database-panel{overflow:visible;background:transparent;border:none;box-shadow:none}
  .db-table-wrap{display:none}
  .mobile-release-list{display:flex;flex-direction:column;gap:14px}
  .mobile-release-card{
    background:#FDFCF8;
    border:1px solid rgba(25,30,28,.1);
    border-radius:14px;
    padding:6px 0 6px 16px;
  }
  .mobile-rel-top{
    padding:12px 12px 6px 0;
    position:relative;
    border-left:3px solid var(--lime);
    padding-left:12px;
    margin-left:-4px;
  }
  .mobile-rel-top strong{font-size:15px;display:block;line-height:1.35}
  .mobile-rel-meta{display:flex;flex-wrap:wrap;gap:8px;margin:6px 12px 10px;padding-top:4px}
  .mobile-rel-foot{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:12px 12px 14px 0;
    border-top:1px dashed rgba(25,30,28,.09);
  }
  .mobile-rel-foot .libel{font-size:12px;color:var(--muted)}
  .mobile-rel-foot a{font-size:13px}
  .step-line{margin-left:8px}
  .faq-item .faq-trigger{gap:10px}
  .faq-question{font-size:14.5px}
  .cta-panel{padding:64px 0}
  .cta-actions .btn{width:100%}
  .cta-actions .btn-ghost{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .table-hint{display:none}
}
@media(max-width:420px){
  .brand-name{max-width:96px;font-size:15px}
  .brand-icon{width:28px;height:28px}
  .header-download{display:none}
  .nav-toggle{grid-column:3}
  .header-wrap{grid-template-columns:auto 1fr auto}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root {
  --bg: #F4F3EE;
  --bg-deep: #0F1312;
  --ink: #161A18;
  --muted: #65736C;
  --line: rgba(25,30,28,0.12);
  --line-deep: rgba(25,30,28,0.24);
  --brand: #D7F45C;
  --brand-hover: #C9E84F;
  --amber: #F5B14C;
  --white: #FFFFFF;
  --shadow: 0 8px 40px rgba(15,19,18,0.06);
  --radius: 12px;
  --radius-lg: 16px;
  --container: 1200px;
  --transition: 0.22s ease;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei UI", "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

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

button,
input {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

.container {
  width: min(100% - 48px, var(--container));
  margin: 0 auto;
}

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

::selection {
  background: var(--brand);
  color: #0A0F0D;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 243, 238, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.site-header.is-scrolled {
  border-color: rgba(25, 30, 28, 0.08);
  box-shadow: 0 10px 30px rgba(15, 19, 18, 0.04);
}

.header-wrap {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 72px;
  position: relative;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--ink);
}

.brand-name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nav-panel ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 40px;
  gap: 6px;
  padding: 0 14px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 999px;
  color: #333D3A;
  transition: color var(--transition), background var(--transition);
}

.nav-list a:hover {
  color: #0A0F0D;
  background: rgba(20, 26, 24, 0.05);
}

.nav-list a.active {
  color: #0A0F0D;
  font-weight: 700;
}

.nav-list a.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
}

.desktop-primary {
  flex-shrink: 0;
}

.header-search {
  position: relative;
  width: min(46vw, 520px);
  margin-left: auto;
  margin-right: auto;
  z-index: 20;
}

.search-form {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 46px;
  background: var(--white);
  border: 1px solid rgba(15, 19, 18, 0.14);
  border-radius: 999px;
  box-shadow: 0 2px 10px rgba(15, 19, 18, 0.03);
  transition: border-color var(--transition), box-shadow var(--transition);
  padding: 0 8px 0 16px;
}

.search-form:focus-within {
  border-color: #1A211E;
  box-shadow: 0 0 0 4px rgba(215, 244, 92, 0.28);
}

.search-icon {
  width: 19px;
  height: 19px;
  color: var(--muted);
  flex-shrink: 0;
}

.search-form input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  height: 100%;
  font-size: 14px;
  color: var(--ink);
}

.search-form input::placeholder {
  color: #87948D;
}

.search-form input::-webkit-search-cancel-button {
  display: none;
}

.search-key {
  height: 26px;
  padding: 0 9px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 12px;
  color: var(--muted);
  background: #F8F7F2;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.search-sheet {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: var(--white);
  border: 1px solid rgba(15, 19, 18, 0.1);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 20px 60px rgba(15, 19, 18, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.header-search:focus-within .search-sheet,
.search-sheet:focus-within {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sheet-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 6px 10px 8px;
}

.suggest-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 10px;
  color: var(--ink);
  font-size: 14px;
  transition: background var(--transition);
}

.suggest-item:hover {
  background: rgba(215, 244, 92, 0.25);
}

.suggest-icon {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  background: rgba(15, 19, 18, 0.05);
  color: #343E3A;
  font-weight: 800;
}

.desktop-secondary {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--white);
  margin-left: auto;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
  stroke: var(--ink);
}

.mobile-nav {
  display: none;
}

/* Category hero */
.category-hero {
  position: relative;
  overflow: hidden;
  background: var(--bg-deep);
  border-bottom: 4px solid var(--brand);
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-2.webp") center 30% / cover no-repeat;
  opacity: 0.18;
}

.category-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 52px 52px;
  pointer-events: none;
}

.category-hero-inner {
  position: relative;
  z-index: 2;
  padding: 62px 0 58px;
  color: #F1F3EF;
}

.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 13px;
  color: rgba(230, 235, 231, 0.72);
}

.crumb a {
  color: rgba(230, 235, 231, 0.72);
  transition: color var(--transition);
}

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

.crumb-divider {
  opacity: 0.5;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 30px;
  padding: 0 14px;
  border: 1px solid rgba(215, 244, 92, 0.4);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #EDF4EC;
  background: rgba(215, 244, 92, 0.08);
}

.hero-kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  animation: breathe 2s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(215, 244, 92, 0.5); }
  50% { box-shadow: 0 0 0 5px rgba(215, 244, 92, 0); }
}

.category-hero h1 {
  margin-top: 16px;
  max-width: 900px;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #FFFFFF;
}

.category-hero .hero-lead {
  margin-top: 14px;
  max-width: 780px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(235, 239, 234, 0.82);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 13px;
  color: #F1F5EF;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
}

.hero-tag b {
  color: var(--brand);
  font-weight: 700;
  margin-right: 6px;
}

/* Section layout */
.section {
  padding: 96px 0;
}

.section-light {
  background: var(--white);
  border-bottom: 1px solid rgba(25, 30, 28, 0.06);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
}

.section-tag {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 700;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.section-head p {
  max-width: 690px;
  color: var(--muted);
  font-size: 15px;
  margin-top: 4px;
}

/* Entry summary strip */
.entry-strip {
  border-bottom: 1px solid rgba(25, 30, 28, 0.08);
  background: #ECEBE4;
}

.entry-strip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.entry-strip-item {
  padding: 22px 24px;
  border-right: 1px solid rgba(25, 30, 28, 0.08);
  display: flex;
  align-items: center;
  gap: 14px;
}

.entry-strip-item:last-child {
  border-right: 0;
}

.entry-strip-num {
  font-family: "SF Mono", "Cascadia Code", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 800;
  color: var(--brand);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #141B18;
  flex-shrink: 0;
}

.entry-strip-item strong {
  display: block;
  font-size: 15px;
  line-height: 1.4;
}

.entry-strip-item span {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 3px;
}

/* Card buttons */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn-neon {
  background: var(--brand);
  color: #0A0F0D;
  box-shadow: 0 4px 16px rgba(215, 244, 92, 0.18);
}

.btn-neon:hover {
  background: var(--brand-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(215, 244, 92, 0.24);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(15, 19, 18, 0.38);
  color: #17201C;
}

.btn-ghost:hover {
  border-color: #1B241F;
  background: rgba(15, 19, 18, 0.04);
  transform: translateY(-2px);
}

.btn-light-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.45);
  color: #FFFFFF;
}

.btn-light-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
  transform: translateY(-2px);
}

/* Masonry */
.masonry-section {
  padding: 96px 0 84px;
  background: var(--bg);
}

.masonry-grid {
  columns: 3;
  column-gap: 24px;
}

.masonry-card {
  break-inside: avoid;
  margin-bottom: 24px;
  background: var(--white);
  border: 1px solid rgba(25, 30, 28, 0.1);
  border-radius: 14px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.masonry-card:hover {
  transform: translateY(-3px);
  border-color: rgba(15, 19, 18, 0.28);
  box-shadow: var(--shadow);
}

.masonry-media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(120deg, #DDE2D9, #BFC9BF);
  overflow: hidden;
}

.masonry-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 19, 18, 0.25), transparent 55%);
  pointer-events: none;
}

.masonry-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.masonry-card:hover .masonry-media img {
  transform: scale(1.035);
}

.masonry-body {
  padding: 20px;
}

.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  border: 1px solid rgba(15, 19, 18, 0.12);
  font-size: 12px;
  font-weight: 600;
  color: #3E4A44;
  background: #FAF9F4;
}

.tag-chip.hot {
  border-color: rgba(245, 177, 76, 0.5);
  color: #A76507;
  background: rgba(245, 177, 76, 0.1);
}

.masonry-body h3 {
  font-size: 18px;
  line-height: 1.5;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.masonry-body p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.section-footer-line {
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid rgba(15, 19, 18, 0.1);
  display: flex;
  justify-content: flex-start;
}

/* precheck flow */
.precheck-section {
  background: var(--white);
  border-top: 1px solid rgba(25, 30, 28, 0.06);
  border-bottom: 1px solid rgba(25, 30, 28, 0.06);
  padding: 92px 0;
}

.precheck-wrap {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.precheck-copy h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin-top: 12px;
}

.precheck-copy p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 15px;
}

.precheck-note {
  margin-top: 26px;
  background: #F1F0EA;
  border-left: 3px solid var(--brand);
  padding: 14px 16px;
  border-radius: 4px 10px 10px 4px;
  font-size: 14px;
  color: #3A4540;
}

.precheck-list {
  border-top: 1px solid var(--line-deep);
}

.precheck-row {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  padding: 24px 4px;
  align-items: baseline;
  transition: background var(--transition);
}

.precheck-row:hover {
  background: rgba(255, 255, 255, 0.7);
}

.precheck-index {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", monospace;
  font-size: 16px;
  font-weight: 800;
  color: #9CA69F;
  letter-spacing: -0.02em;
}

.precheck-row h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 5px;
}

.precheck-row p {
  font-size: 14px;
  color: var(--muted);
  max-width: 600px;
}

/* FAQ */
.faq-section {
  padding: 96px 0;
}

.faq-wrap {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 64px;
}

.faq-intro h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin-top: 12px;
}

.faq-intro p {
  color: var(--muted);
  font-size: 15px;
  margin-top: 14px;
}

.faq-actions {
  margin-top: 26px;
}

.faq-list {
  border-top: 1px solid var(--line-deep);
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  text-align: left;
  padding: 20px 4px;
}

.faq-q-title {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.faq-q-index {
  font-family: ui-monospace, "SF Mono", monospace;
  font-size: 13px;
  color: #9DA59F;
  font-weight: 800;
}

.faq-icon {
  position: relative;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

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

.faq-icon::before {
  width: 12px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 12px;
}

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

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer {
  padding: 0 40px 22px 38px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

/* CTA band */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--bg-deep);
  padding: 88px 0;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-3.webp") center 40% / cover no-repeat;
  opacity: 0.14;
  pointer-events: none;
}

.cta-band::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% 30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(215, 244, 92, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: #F1F4F0;
}

.cta-inner h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.cta-inner p {
  margin-top: 16px;
  max-width: 680px;
  color: rgba(235, 240, 235, 0.72);
  font-size: 15px;
}

.cta-buttons {
  margin-top: 30px;
}

.cta-tip {
  margin-top: 16px;
  font-size: 12px;
  color: rgba(235, 240, 235, 0.42);
}

/* Footer */
.site-footer {
  background: var(--bg-deep);
  color: rgba(235, 239, 236, 0.68);
  padding-top: 64px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr 0.9fr 1fr;
  gap: 48px;
  padding-bottom: 46px;
}

.footer-brand {
  margin-bottom: 16px;
}

.footer-brand .brand-link {
  color: #FFFFFF;
}

.footer-about {
  max-width: 300px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(235, 239, 236, 0.52);
}

.footer-title {
  font-size: 15px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(235, 239, 236, 0.62);
  transition: color var(--transition);
}

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(235, 239, 236, 0.62);
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  color: rgba(235, 239, 236, 0.4);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(235, 239, 236, 0.35);
}

.footer-bottom a {
  color: rgba(215, 244, 92, 0.8);
}

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

/* Responsive breakpoints */
@media (max-width: 1100px) {
  .desktop-primary,
  .desktop-secondary {
    display: none;
  }

  .header-wrap {
    flex-wrap: wrap;
    padding-top: 8px;
    padding-bottom: 8px;
    gap: 10px 14px;
  }

  .header-search {
    order: 5;
    width: 100%;
    max-width: none;
  }

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

  .mobile-nav {
    display: block;
    border-top: 1px solid var(--line);
    background: var(--white);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .mobile-nav.open {
    max-height: 320px;
    border-bottom: 1px solid var(--line);
  }

  .mobile-nav-list {
    padding: 12px 24px 18px;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .mobile-nav-list a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0 12px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
  }

  .mobile-nav-list a:hover {
    background: rgba(215, 244, 92, 0.3);
  }

  .mobile-nav-list a.active {
    background: rgba(15, 19, 18, 0.06);
  }

  .masonry-grid {
    columns: 2;
  }

  .precheck-wrap {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 34px;
  }
}

@media (max-width: 820px) {
  .entry-strip-grid {
    grid-template-columns: 1fr;
  }

  .entry-strip-item {
    border-right: 0;
    border-bottom: 1px solid rgba(25, 30, 28, 0.08);
  }

  .entry-strip-item:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 72px 0;
  }

  .masonry-section,
  .precheck-section,
  .faq-section,
  .cta-band {
    padding-left: 0;
    padding-right: 0;
  }
}

@media (max-width: 640px) {
  .container {
    width: calc(100% - 36px);
  }

  .brand-name {
    font-size: 17px;
  }

  .header-wrap {
    gap: 8px;
  }

  .search-key {
    display: none;
  }

  .search-form {
    height: 44px;
  }

  .category-hero-inner {
    padding: 46px 0 44px;
  }

  .category-hero h1 {
    font-size: 1.8rem;
    line-height: 1.22;
  }

  .category-hero .hero-lead {
    font-size: 14.5px;
  }

  .masonry-grid {
    columns: 1;
  }

  .section-head h2 {
    font-size: 1.6rem;
  }

  .precheck-row {
    grid-template-columns: 42px 1fr;
    gap: 8px;
    padding: 20px 2px;
  }

  .faq-q-index {
    display: none;
  }

  .faq-answer {
    padding: 0 0 20px 0;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 36px;
  }

  .btn-row {
    align-items: stretch;
    flex-direction: column;
  }

  .btn-row .btn {
    width: 100%;
  }

  .cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }

  .cta-buttons .btn {
    width: 100%;
  }

  .cta-band {
    padding: 64px 0;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-play-state: paused !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category4 */
:root{
  --bg:#F4F3EE;
  --surface:#FFFFFF;
  --ink:#161A18;
  --graphite:#0F1312;
  --graphite-2:#1A211E;
  --muted:#65736C;
  --line:rgba(25,30,28,.12);
  --lime:#D7F45C;
  --lime-2:#C9E84F;
  --amber:#F5B14C;
  --radius:12px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow:0 8px 40px rgba(15,19,18,.06);
  --fontStack:-apple-system,BlinkMacSystemFont,PingFang SC,HarmonyOS Sans SC,Source Han Sans SC,Microsoft YaHei UI,Segoe UI,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important;scroll-behavior:auto}
}
body{
  margin:0;
  font-family:var(--fontStack);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:110px 0}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(244,243,238,.9);
  -webkit-backdrop-filter:blur(16px) saturate(1.2);
  backdrop-filter:blur(16px) saturate(1.2);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 24px rgba(15,19,18,.04);
}
.header-wrap{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:72px;
}
.brand-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  white-space:nowrap;
  flex-shrink:0;
}
.brand-icon{flex:0 0 auto}
.brand-name{
  font-size:17px;
  font-weight:800;
  letter-spacing:0;
  color:var(--graphite);
  white-space:nowrap;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
}
.nav-list a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 12px;
  font-size:14px;
  font-weight:550;
  color:var(--ink);
  border-radius:10px;
  transition:background .22s ease,color .22s ease;
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:20px;
  height:2px;
  background:var(--lime-2);
  border-radius:99px;
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform .22s ease;
}
.nav-list a:hover{background:rgba(15,19,18,.05);color:var(--graphite)}
.nav-list a.active{color:var(--graphite);font-weight:700}
.nav-list a.active::after{transform:translateX(-50%) scaleX(1)}
.header-search{
  position:relative;
  flex:1 1 320px;
  max-width:500px;
  margin-left:auto;
  min-width:220px;
}
.search-form{
  display:flex;
  align-items:center;
  height:46px;
  padding-left:18px;
  padding-right:12px;
  background:#fff;
  border:1px solid rgba(15,19,18,.12);
  border-radius:999px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.header-search.open .search-form,
.search-form:focus-within{
  border-color:var(--lime-2);
  box-shadow:0 0 0 4px rgba(215,244,92,.2);
}
.search-icon{
  width:18px;
  height:18px;
  color:var(--muted);
  flex:0 0 auto;
}
.search-form input{
  flex:1;
  min-width:0;
  height:100%;
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  color:var(--ink);
  padding:0 12px;
}
.search-form input::-webkit-search-cancel-button{display:none}
.search-form input::placeholder{color:#8C9690}
.search-key{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:11px;
  line-height:24px;
  padding:0 8px;
  border:1px solid rgba(15,19,18,.12);
  border-radius:7px;
  color:var(--muted);
  background:#F4F3EE;
}
.search-sheet{
  position:absolute;
  top:calc(100% + 12px);
  left:0;
  right:0;
  background:#fff;
  border:1px solid rgba(15,19,18,.1);
  border-radius:16px;
  box-shadow:0 20px 60px rgba(15,19,18,.1);
  padding:14px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:all .22s ease;
}
.header-search.open .search-sheet{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.sheet-label{font-size:12px;color:var(--muted);padding:4px 8px 10px;letter-spacing:.04em}
.suggest-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 8px;
  border-radius:10px;
  font-size:14px;
  font-weight:550;
  color:var(--ink);
  transition:background .2s ease;
}
.suggest-item:hover{background:rgba(215,244,92,.32)}
.suggest-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:28px;
  height:28px;
  border-radius:9px;
  background:var(--graphite);
  color:var(--lime);
  font-size:15px;
  flex:0 0 auto;
}
.mobile-cta,
.nav-action{
  flex:0 0 auto;
}
.header-action{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 21px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  color:#0A0F0D;
  background:var(--lime);
  transition:background .22s ease,transform .22s ease;
  white-space:nowrap;
}
.header-action:hover{background:var(--lime-2);transform:translateY(-1px)}
.header-action:active{transform:translateY(0)}
.menu-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  border:1px solid rgba(15,19,18,.14);
  border-radius:14px;
  background:#fff;
  color:var(--graphite);
}
.menu-toggle svg{width:22px;height:22px}
.mobile-nav{
  display:none;
  flex-direction:column;
  gap:6px;
  padding:16px 24px 24px;
  background:#F4F3EE;
  border-top:1px solid var(--line);
}
.mobile-nav a{
  display:block;
  padding:13px 14px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  border-radius:12px;
  background:#fff;
  border:1px solid rgba(15,19,18,.08);
}
.mobile-nav a.active{background:var(--graphite);color:var(--lime)}

/* ===== Buttons / tags ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  transition:background .22s ease,border-color .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-lime{background:var(--lime);color:#0A0F0D;box-shadow:0 6px 20px rgba(215,244,92,.12)}
.btn-lime:hover{background:var(--lime-2);transform:translateY(-2px)}
.btn-outline-dark{border-color:rgba(15,19,18,.4);color:var(--graphite);background:transparent}
.btn-outline-dark:hover{border-color:var(--graphite);background:rgba(15,19,18,.04)}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-white{background:#fff;color:var(--graphite)}
.btn-white:hover{background:#F0EFE9}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:30px;
  padding:0 13px;
  border-radius:999px;
  font-size:12px;
  font-weight:650;
  color:var(--muted);
  background:rgba(101,115,108,.08);
  border:1px solid var(--line);
}
.tag-lime{color:#0A0F0D;background:var(--lime);border-color:var(--lime)}
.pill-label{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:32px;
  padding:0 16px;
  border:1px solid rgba(255,255,255,.26);
  border-radius:999px;
  font-size:12px;
  letter-spacing:.1em;
  color:rgba(255,255,255,.86);
  background:rgba(255,255,255,.04);
}
.pill-label .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 0 rgba(215,244,92,.7);animation:pulse 2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(215,244,92,.5)}
  70%{box-shadow:0 0 0 8px rgba(215,244,92,0)}
  100%{box-shadow:0 0 0 0 rgba(215,244,92,0)}
}

/* ===== Help hero ===== */
.help-hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  background:#0F1312;
  background-image:linear-gradient(rgba(255,255,255,.027) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.027) 1px,transparent 1px),url('/assets/images/backpic/back-2.webp');
  background-size:56px 56px,56px 56px,cover;
  background-position:center;
  background-blend-mode:overlay;
}
.help-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(15,19,18,.93) 0%,rgba(15,19,18,.78) 56%,rgba(15,19,18,.45) 100%);
  pointer-events:none;
}
.help-hero .container{position:relative;z-index:2;padding-top:82px;padding-bottom:82px}
.help-hero-inner{max-width:860px}
.help-hero h1{
  margin:22px 0 16px;
  font-size:clamp(2.2rem,5vw,3.8rem);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
}
.help-hero .hero-lead{
  max-width:680px;
  margin:0;
  font-size:17px;
  font-weight:400;
  color:rgba(255,255,255,.82);
}
.help-hero .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:26px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.72);
}
.hero-trust strong{
  display:block;
  font-size:16px;
  font-weight:800;
  color:var(--lime);
  font-variant-numeric:tabular-nums;
}

/* ===== Help layout ===== */
.help-layout-section{
  background:var(--bg);
  padding:100px 0 30px;
}
.layout-help{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:64px;
  align-items:start;
}
.help-toc{
  position:sticky;
  top:100px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:22px;
  background:#fff;
}
.toc-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--muted);
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:4px;margin:0;padding:0;list-style:none}
.toc-list a{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px 9px;
  border-radius:10px;
  font-size:14px;
  font-weight:550;
  line-height:1.45;
  color:var(--ink);
  transition:background .2s ease,color .2s ease;
}
.toc-list a:hover{background:#F4F3EE;color:var(--graphite)}
.toc-list a.active{background:rgba(215,244,92,.4);color:var(--graphite)}
.toc-list em{font-style:normal;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}
.toc-note{
  margin-top:18px;
  padding:15px;
  border-radius:12px;
  background:var(--graphite);
  color:rgba(255,255,255,.86);
  font-size:13px;
  line-height:1.7;
}
.toc-note b{color:var(--lime);display:block;margin-bottom:3px;font-weight:700}
.help-doc{display:flex;flex-direction:column}
.help-block{
  scroll-margin-top:110px;
  padding-bottom:84px;
  margin-bottom:88px;
  border-bottom:1px solid var(--line);
}
.help-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.block-index{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
  margin-bottom:8px;
}
.help-block h2,.faq-main-title{
  font-size:clamp(1.6rem,2.8vw,2.4rem);
  font-weight:750;
  line-height:1.3;
  margin:0 0 16px;
  letter-spacing:-.01em;
}
.help-block .block-desc{
  max-width:760px;
  color:#3E4A43;
  font-size:16px;
  margin:0 0 26px;
}
.mini-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
  margin:28px 0 18px;
}
.check-item{
  margin:0;
  padding:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  font-size:14px;
  line-height:1.7;
  transition:box-shadow .22s ease,transform .22s ease;
}
.check-item:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.check-item strong{display:block;font-size:15px;font-weight:750;margin-bottom:6px}
.check-item strong::before{content:"";display:inline-block;width:8px;height:8px;margin-right:10px;border-radius:2px;background:var(--lime-2)}
.step-list,.normal-list{
  margin:0;
  padding:0;
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.step-list li,.normal-list li{
  position:relative;
  padding:16px 18px 16px 50px;
  background:rgba(255,255,255,.78);
  border:1px solid var(--line);
  border-radius:12px;
  font-size:15px;
  line-height:1.75;
}
.step-list li::before{
  content:attr(data-index);
  position:absolute;
  left:14px;
  top:16px;
  width:26px;
  height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--graphite);
  color:var(--lime);
  border-radius:8px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;
  font-weight:700;
}
.normal-list li{background:#fff}
.safety-card{
  display:grid;
  grid-template-columns:260px 1fr;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  margin-top:24px;
}
.media-side{
  overflow:hidden;
  background:#E9E6DE;
}
.media-side img{
  width:100%;
  height:100%;
  min-height:220px;
  object-fit:cover;
  aspect-ratio:4/3;
  transition:transform .4s ease;
}
.safety-card:hover .media-side img{transform:scale(1.03)}
.safety-info{
  padding:22px 24px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.safety-line{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding-bottom:12px;
  border-bottom:1px dashed rgba(15,19,18,.12);
  font-size:14px;
  line-height:1.7;
}
.safety-line:last-child{border-bottom:0;padding-bottom:0}
.safety-line .mark{
  width:8px;
  height:8px;
  border-radius:3px;
  background:var(--lime);
  margin-top:9px;
  flex:0 0 auto;
}
.contact-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin:24px 0;
}
.contact-cell{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  padding:18px;
  font-size:13px;
  line-height:1.7;
}
.contact-cell strong{
  display:flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  margin-bottom:5px;
}
.contact-cell svg{width:17px;height:17px;color:var(--graphite)}

/* ===== CTA security strip ===== */
.security-strip-wrap{padding:0 24px}
.security-strip{
  background:linear-gradient(120deg,#0F1312,#1A211E);
  border-radius:var(--radius-lg);
  padding:40px 46px;
  color:#fff;
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  align-items:center;
  justify-content:space-between;
  margin-bottom:110px;
}
.security-strip h2{margin:0 0 4px;font-size:24px;font-weight:800}
.security-strip p{margin:0;max-width:680px;color:rgba(255,255,255,.74);font-size:15px}
.security-strip .btn{flex-shrink:0}

/* ===== FAQ ===== */
.faq-section{
  background:var(--bg);
  padding:0 0 108px;
}
.faq-wrap{
  display:grid;
  grid-template-columns:0.7fr 1.3fr;
  gap:72px;
  align-items:start;
}
.faq-side{position:sticky;top:100px}
.faq-side .pill-label{border-color:rgba(15,19,18,.2);color:var(--muted)}
.faq-main-title{font-size:clamp(1.65rem,2.8vw,2.5rem)}
.faq-side p{color:var(--muted);font-size:15px;max-width:42ch;margin:12px 0 24px}
.faq-list{display:flex;flex-direction:column}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;
  display:grid;
  grid-template-columns:1fr 28px;
  gap:20px;
  align-items:center;
  padding:22px 4px;
  text-align:left;
  background:none;
  border:0;
  color:var(--ink);
  font-size:16px;
  font-weight:650;
  line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--graphite)}
.faq-q .ord{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;
  color:var(--muted);
  font-weight:400;
}
.faq-q .plus{
  position:relative;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid rgba(15,19,18,.22);
  transition:transform .25s ease,background .25s ease,border-color .25s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:12px;
  height:1.6px;
  background:var(--graphite);
  transform:translate(-50%,-50%);
}
.faq-q .plus::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.open .plus{transform:rotate(45deg);background:var(--lime);border-color:var(--lime)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a-inner{
  padding:0 42px 22px 34px;
  color:#3E4A43;
  font-size:15px;
  line-height:1.8;
}

/* ===== Bottom download CTA ===== */
.final-cta{
  position:relative;
  overflow:hidden;
  background:#0F1312;
  color:#fff;
  padding:100px 0 120px;
}
.final-cta::after{
  content:"H";
  position:absolute;
  right:-40px;
  top:-90px;
  font-size:360px;
  font-weight:900;
  line-height:1;
  color:rgba(215,244,92,.05);
  pointer-events:none;
}
.final-grid{
  position:relative;
  max-width:980px;
}
.final-grid h2{
  font-size:clamp(2rem,4.2vw,3.4rem);
  margin:0 0 12px;
  font-weight:800;
}
.final-grid .final-lead{
  color:rgba(255,255,255,.72);
  font-size:16px;
  margin:0 0 42px;
  max-width:640px;
}
.download-panel{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:16px;
  margin-bottom:14px;
  min-height:84px;
  display:grid;
  grid-template-columns:64px minmax(0,1fr) auto;
  align-items:center;
  gap:22px;
  padding:18px 22px;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.download-panel:hover{
  background:rgba(255,255,255,.09);
  border-color:rgba(215,244,92,.4);
  transform:translateY(-2px);
}
.platform-icon{
  width:56px;
  height:56px;
  border-radius:16px;
  background:var(--lime);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:800;
  color:#0A0F0D;
}
.download-panel .name{font-size:17px;font-weight:750;margin-bottom:2px}
.download-panel .meta{font-size:13px;color:rgba(255,255,255,.62);font-variant-numeric:tabular-nums}
.download-panel .btn{background:var(--lime);color:#0A0F0D}
.download-panel .btn:hover{background:var(--lime-2);transform:translateY(-1px)}

/* ===== Footer ===== */
.site-footer{
  background:var(--graphite);
  color:rgba(255,255,255,.82);
  padding:70px 0 0;
}
.footer-top{
  display:grid;
  grid-template-columns:1.8fr 0.8fr 0.9fr 1.1fr;
  gap:42px;
  padding-bottom:52px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand .brand-name{color:#fff;font-size:18px}
.footer-about{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.6);
  margin:16px 0 0;
  max-width:32ch;
}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin:0 0 18px;
}
.footer-links,.footer-contact{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.68);
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--lime)}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:center;
  font-size:13px;
  color:rgba(255,255,255,.58);
}
.footer-contact svg{width:18px;height:18px;color:var(--lime);flex:0 0 auto}
.site-footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px 0;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
.site-footer-bottom a{color:rgba(255,255,255,.55)}
.site-footer-bottom a:hover{color:var(--lime)}

/* ===== Responsive ===== */
@media (max-width:1180px){
  .header-wrap{gap:10px}
  .nav-list a{padding:0 8px;font-size:13px}
  .brand-name{font-size:15px}
  .header-action{padding:0 15px}
}
@media (max-width:980px){
  .desktop-nav,.header-action{display:none}
  .menu-toggle{display:inline-flex}
  .header-wrap{flex-wrap:wrap;min-height:auto;padding-top:12px;padding-bottom:12px}
  .header-wrap .mobile-action{display:flex;margin-left:auto}
  .header-actions-row{display:flex;align-items:center;gap:10px;margin-left:auto}
  .header-search{order:3;flex-basis:100%;max-width:none;margin:6px 0 2px}
  .search-form{height:44px}
  .mobile-nav.open{display:flex}
  .mobile-cta{display:inline-flex;align-items:center;height:42px;padding:0 16px;background:var(--lime);color:#0A0F0D;border-radius:999px;font-weight:700;font-size:14px}
  .layout-help{grid-template-columns:1fr;gap:32px}
  .help-toc{position:static;top:auto;order:2}
  .help-doc{order:1}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static;top:auto}
}
@media (max-width:767px){
  .section{padding:68px 0}
  .help-hero .container{padding-top:52px;padding-bottom:58px}
  .help-layout-section{padding:68px 0 18px}
  .faq-section{padding:0 0 70px}
  .mini-grid{grid-template-columns:1fr}
  .safety-card{grid-template-columns:1fr}
  .safety-card .media-side img{min-height:190px}
  .contact-grid,.download-panel{grid-template-columns:1fr}
  .contact-grid{gap:10px}
  .download-panel{grid-template-columns:56px minmax(0,1fr) auto}
  .download-panel .btn{grid-column:2/4;width:100%;margin-top:8px}
  .security-strip{padding:30px 26px;display:block}
  .security-strip .btn{margin-top:18px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-top>div:first-child{grid-column:1/-1}
  .site-footer-bottom{flex-direction:column;gap:6px;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .header-wrap{gap:6px}
  .brand-link .brand-name{font-size:14px}
  .brand-link svg{width:32px;height:32px}
  .help-hero h1{font-size:2.1rem}
  .help-hero .hero-lead{font-size:15px}
  .download-panel{grid-template-columns:1fr;justify-items:start;gap:12px}
  .download-panel .btn{grid-column:1/-1}
  .platform-icon{width:50px;height:50px;border-radius:14px}
  .site-footer-bottom{align-items:flex-start}
  .faq-a-inner{padding-left:18px;padding-right:18px}
}
@media (prefers-reduced-motion:reduce){
  .pill-label .dot{animation:none}
}