/* roulang page: index */
:root{
  --ink-900:#070A09;
  --ink-800:#0C1210;
  --ink-700:#121A17;
  --paper-100:#F5F6F1;
  --paper-200:#ECEFE7;
  --line-dark:rgba(255,255,255,0.10);
  --line-dark-strong:rgba(255,255,255,0.18);
  --line-light:rgba(6,10,9,0.08);
  --line-light-strong:rgba(6,10,9,0.16);
  --text-on-dark-hi:#FFFFFF;
  --text-on-dark-mid:rgba(255,255,255,0.72);
  --text-on-dark-dim:rgba(255,255,255,0.52);
  --text-on-light-hi:#101411;
  --text-on-light-mid:#3C443F;
  --text-on-light-dim:#6A736D;
  --accent-signal:#C6F24E;
  --accent-signal-strong:#D7FB66;
  --brand-secondary:#2F7A6E;
  --danger:#D96C4A;
  --success:#3FA47C;
  --radius-card:16px;
  --radius-pill:999px;
  --section-space:clamp(72px,9vw,116px);
  --shadow-card:0 1px 0 rgba(0,0,0,0.04);
  --shadow-lift:0 18px 40px -16px rgba(0,0,0,0.25);
  --shadow-soft:0 12px 30px -18px rgba(0,0,0,0.12);
}
*,*::before,*::after{box-sizing:border-box}
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}
article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}
ol,ul{list-style:none}
blockquote,q{quotes:none}
table{border-collapse:collapse;border-spacing:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:transparent;cursor:pointer;color:inherit}
img{display:block;max-width:100%}
html{scroll-behavior:smooth}
body{
  font-family:"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  background:var(--paper-100);
  color:var(--text-on-light-hi);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5{line-height:1.25;font-weight:700}
::selection{background:var(--accent-signal);color:var(--ink-900)}
:focus-visible{outline:2px solid var(--accent-signal);outline-offset:2px}
.container{max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px}
@media(max-width:600px){.container{padding-left:18px;padding-right:18px}}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--ink-900);
  color:var(--text-on-dark-hi);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 16px 34px -18px rgba(0,0,0,.45)}
.site-header__inner{background:var(--ink-900)}
.header-top{
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:14px 0;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:#fff;font-size:18px;font-weight:600;letter-spacing:.02em;flex-shrink:0}
.brand__mark{
  width:34px;height:34px;
  border-radius:9px;
  background:var(--accent-signal);
  color:var(--ink-900);
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;
  box-shadow:0 0 0 1px rgba(255,255,255,.08);
}
.brand__mark svg{width:20px;height:20px}
.brand__name{white-space:nowrap}
.header-top__meta{display:flex;align-items:center;gap:9px;color:var(--text-on-dark-mid);font-size:13px;line-height:1.5;text-align:right}
.header-top__meta svg{width:18px;height:18px;color:var(--accent-signal);flex-shrink:0}
.menu-toggle{display:none}
.channel-bar{border-top:1px solid var(--line-dark);background:rgba(12,18,16,.72)}
.channel-nav{display:flex;align-items:center;flex-wrap:wrap;min-height:58px;gap:2px}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:58px;
  padding:0 18px;
  font-size:15px;
  font-weight:500;
  color:var(--text-on-dark-mid);
  transition:color .25s ease,background-color .25s ease;
  letter-spacing:.02em;
}
.channel-link::after{
  content:"";
  position:absolute;
  left:18px;
  bottom:0;
  width:22px;
  height:2px;
  background:var(--accent-signal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s ease;
}
.channel-link:hover{color:#fff}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.active{color:var(--accent-signal);font-weight:600}
.channel-link.active::after{transform:scaleX(1)}
.mobile-menu{display:none;padding:8px 0 18px;border-top:1px solid var(--line-dark)}
.site-header.is-open .mobile-menu{display:block}
.mobile-menu .channel-link{display:flex;min-height:48px;border-bottom:1px solid var(--line-dark)}
.mobile-menu .channel-link::after{display:none}
.mobile-menu a:last-child{border-bottom:0}
@media(max-width:768px){
  .header-top__meta{display:none}
  .menu-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:44px;height:44px;
    border:1px solid var(--line-dark-strong);
    border-radius:10px;
    color:#fff;
    background:transparent;
    transition:background-color .25s,border-color .25s;
  }
  .menu-toggle:hover{border-color:var(--accent-signal)}
  .menu-toggle svg{width:22px;height:22px}
  .channel-nav{display:none}
  .channel-bar{border-top:0}
}

/* ===== Hero ===== */
.hero{
  position:relative;
  background-color:var(--ink-900);
  background-image:linear-gradient(75deg,rgba(7,10,9,.97) 0%,rgba(7,10,9,.9) 48%,rgba(7,10,9,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-repeat:no-repeat;
  background-size:cover;
  background-position:center 20%;
  color:var(--text-on-dark-hi);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,242,78,.28),transparent);
}
.hero__grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);
  align-items:center;
  gap:56px;
  padding:clamp(68px,9vw,120px) 0 clamp(48px,6vw,80px);
}
.hero__kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:7px 14px;
  border:1px solid rgba(198,242,78,.45);
  border-radius:999px;
  background:rgba(198,242,78,.08);
  color:var(--accent-signal);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:26px;
}
.hero__title{
  font-size:clamp(34px,5.4vw,64px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  max-width:24ch;
  text-wrap:balance;
}
.hero__title .h-brand{color:var(--accent-signal)}
.hero__lead{
  margin-top:26px;
  max-width:54ch;
  font-size:16px;
  line-height:1.9;
  color:var(--text-on-dark-mid);
}
.hero__actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px;margin-top:34px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 30px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  letter-spacing:.02em;
  transition:background-color .25s,color .25s,border-color .25s,transform .3s,box-shadow .3s;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--signal{background:var(--accent-signal);color:var(--ink-800)}
.btn--signal:hover{background:var(--accent-signal-strong);box-shadow:0 14px 30px -12px rgba(198,242,78,.5)}
.btn--ghost{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.24);
}
.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn--ghost-light{
  background:transparent;
  color:var(--text-on-light-hi);
  border:1px solid var(--line-light-strong);
}
.btn--ghost-light:hover{background:var(--ink-900);color:#fff;border-color:var(--ink-900)}
.btn--arrow svg{width:16px;height:16px;transition:transform .3s ease}
.btn--arrow:hover svg{transform:translateX(4px)}
.hero__quick{
  margin-top:50px;
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:26px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;
}
.quick-item{position:relative;padding-right:6px}
.quick-item:not(:last-child)::after{
  content:"";
  position:absolute;
  top:12px;bottom:12px;right:-14px;
  width:1px;
  background:rgba(255,255,255,.12);
}
.quick-item b{display:block;color:var(--accent-signal);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:6px}
.quick-item span{display:block;font-size:14px;line-height:1.55;color:var(--text-on-dark-mid)}
.hero__visual{display:flex;flex-direction:column;gap:18px}
.hero__figure{
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--ink-700);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-lift);
  transform:translateY(0);
  transition:transform .4s ease;
}
.hero__figure:hover{transform:translateY(-4px)}
.hero__figure img{width:100%;height:360px;object-fit:cover}
.hero__figure figcaption{
  padding:14px 18px;
  font-size:13px;
  color:var(--text-on-dark-mid);
  background:var(--ink-800);
  border-top:1px solid var(--line-dark);
}
.hero-status-card{
  display:flex;
  align-items:flex-start;
  gap:12px;
  border:1px solid rgba(198,242,78,.28);
  background:rgba(198,242,78,.06);
  border-radius:14px;
  padding:16px 18px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-on-dark-mid);
}
.hero-status-card .dot{
  width:9px;height:9px;
  flex-shrink:0;
  border-radius:50%;
  background:var(--accent-signal);
  margin-top:7px;
  box-shadow:0 0 0 4px rgba(198,242,78,.14);
}
@media(max-width:1024px){
  .hero__grid{grid-template-columns:1fr;gap:40px;padding-top:64px}
  .hero__title{max-width:100%}
  .hero__visual{max-width:640px}
  .hero__figure img{height:300px}
}
@media(max-width:768px){
  .hero__quick{grid-template-columns:1fr;gap:0;padding-top:16px;border-top:0}
  .quick-item{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
  .quick-item:not(:last-child)::after{display:none}
  .hero__actions .btn{width:100%}
}

/* ===== Sections ===== */
.sec{padding:var(--section-space) 0}
.bg-paper{background:var(--paper-100)}
.bg-white{background:#fff}
.bg-ink{background:var(--ink-900);color:var(--text-on-dark-hi)}
.section-top{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-top__left{max-width:720px}
.kicker{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:none;
  color:var(--brand-secondary);
  margin-bottom:12px;
}
.bg-ink .kicker{color:var(--accent-signal)}
.section-title{
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.25;
  letter-spacing:-.01em;
}
.section-note{
  max-width:340px;
  font-size:14px;
  color:var(--text-on-light-dim);
  line-height:1.8;
}
.bg-ink .section-note{color:var(--text-on-dark-dim)}
@media(max-width:768px){
  .section-top{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .section-note{max-width:100%}
}

/* ===== Three Steps / Guide ===== */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
}
.step{
  position:relative;
  padding:28px 32px 20px 0;
}
.step:not(:last-child){padding-right:32px;margin-right:32px}
.step:not(:last-child)::before{
  content:"";
  position:absolute;
  right:0;top:18px;bottom:18px;
  border-right:1px dashed var(--line-light-strong);
}
.step__num{
  width:52px;height:52px;
  border-radius:50%;
  border:1px solid var(--brand-secondary);
  background:rgba(47,122,110,.12);
  color:var(--brand-secondary);
  display:grid;
  place-items:center;
  font-size:15px;
  font-weight:700;
  margin-bottom:22px;
  letter-spacing:.04em;
}
.step h3{font-size:20px;font-weight:700;margin-bottom:12px}
.step p{font-size:14px;line-height:1.85;color:var(--text-on-light-mid)}
.bg-ink .step p{color:var(--text-on-dark-dim)}
@media(max-width:1024px){
  .steps{grid-template-columns:1fr;gap:4px}
  .step:not(:last-child){padding-right:0;margin-right:0;border-bottom:1px dashed var(--line-light-strong);padding-bottom:30px;margin-bottom:18px}
  .step:not(:last-child)::before{display:none}
  .step:last-child{padding-bottom:0}
}

/* ===== Category quick index ===== */
.category-grid{
  display:grid;
  grid-template-columns:minmax(280px,.8fr) minmax(0,1.2fr);
  gap:60px;
  align-items:start;
}
.category-copy .section-note{margin-top:16px;max-width:46ch}
.category-copy .btn{margin-top:28px}
.category-list{
  border-top:1px solid var(--line-light-strong);
}
.category-row{
  display:grid;
  grid-template-columns:52px 1fr 44px;
  align-items:center;
  gap:18px;
  padding:30px 12px 30px 0;
  border-bottom:1px solid var(--line-light);
  transition:background-color .25s,border-color .25s,transform .3s;
}
.category-row:hover{
  background:var(--paper-100);
  padding-left:14px;
  padding-right:22px;
  border-radius:4px;
  transform:translateX(2px);
}
.category-row__index{
  width:40px;height:40px;
  border-radius:50%;
  display:grid;
  place-items:center;
  font-weight:700;
  font-size:13px;
  color:var(--text-on-light-mid);
  background:var(--paper-200);
  border:1px solid var(--line-light-strong);
  transition:background-color .25s,color .25s,border-color .25s;
}
.category-row:hover .category-row__index{background:var(--ink-900);color:var(--accent-signal);border-color:var(--ink-900)}
.category-row__body{min-width:0}
.category-row__title{display:block;font-size:20px;font-weight:700;margin-bottom:6px;letter-spacing:-.01em}
.category-row__desc{display:block;font-size:14px;line-height:1.7;color:var(--text-on-light-dim)}
.category-row__go{
  width:38px;height:38px;
  border:1px solid var(--line-light-strong);
  border-radius:50%;
  display:grid;
  place-items:center;
  color:var(--text-on-light-hi);
  transition:background-color .25s,color .25s,transform .3s,border-color .25s;
}
.category-row:hover .category-row__go{background:var(--accent-signal);color:var(--ink-900);border-color:var(--accent-signal);transform:translateX(3px)}
.category-row__go svg{width:17px;height:17px}
@media(max-width:1024px){
  .category-grid{grid-template-columns:1fr;gap:36px}
}
@media(max-width:600px){
  .category-row{grid-template-columns:42px 1fr 34px;gap:12px;padding:22px 0}
  .category-row:hover{padding-left:6px;padding-right:12px}
}

/* ===== Status / dark proof ===== */
.proof-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:80px;
  align-items:center;
}
.proof-copy h2{
  font-size:clamp(25px,3vw,36px);
  margin-bottom:22px;
  max-width:18ch;
}
.proof-copy p{color:var(--text-on-dark-dim);max-width:48ch;font-size:15px;line-height:1.9}
.bg-ink .btn--signal{margin-top:32px}
.proof-list{border-top:1px solid var(--line-dark-strong)}
.proof-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:20px;
  padding:24px 0;
  border-bottom:1px solid var(--line-dark);
}
.proof-item__index{
  font-size:13px;
  font-weight:700;
  color:var(--accent-signal);
  letter-spacing:.08em;
  padding-top:6px;
}
.proof-item h3{font-size:18px;font-weight:700;margin-bottom:6px}
.proof-item p{font-size:14px;line-height:1.8;color:var(--text-on-dark-mid);max-width:46ch}
@media(max-width:1024px){
  .proof-grid{grid-template-columns:1fr;gap:44px}
}

/* ===== CMS Latest ===== */
.section-latest{background:linear-gradient(180deg,#fff 0%,#F8F9F5 100%)}
.news-layout{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(300px,.88fr);
  gap:22px;
  align-items:stretch;
  margin-top:10px;
}
.news-feature{
  background:var(--ink-900);
  border-radius:18px;
  min-height:340px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:38px;
  color:#fff;
  position:relative;
  overflow:hidden;
  transition:box-shadow .35s ease;
}
.news-feature::after{
  content:"置顶动态";
  position:absolute;
  top:24px;left:24px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  padding:6px 12px;
  color:var(--ink-800);
  background:var(--accent-signal);
  border-radius:999px;
}
.news-feature:hover{box-shadow:var(--shadow-lift)}
.post-cat{
  display:inline-flex;
  align-items:center;
  min-height:26px;
  padding:0 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:var(--brand-secondary);
  background:rgba(47,122,110,.1);
  border:1px solid rgba(47,122,110,.2);
  width:fit-content;
}
.news-feature .post-cat{color:var(--accent-signal);background:rgba(198,242,78,.08);border-color:rgba(198,242,78,.25)}
.news-feature h3{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.4;
  margin-top:18px;
  margin-bottom:12px;
  max-width:22ch;
}
.news-feature h3 a{color:#fff;transition:color .25s}
.news-feature h3 a:hover{color:var(--accent-signal)}
.news-feature .post-summary{
  font-size:15px;
  color:var(--text-on-dark-mid);
  line-height:1.8;
  max-width:54ch;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:20px;font-size:13px;color:var(--text-on-dark-dim)}
.bg-white .post-meta .post-date,.compact-post .post-meta .post-date{color:var(--text-on-light-dim)}
.bg-white .compact-post{background:#F5F6F1;border:1px solid var(--line-light)}
.compact-posts{display:grid;grid-template-rows:1fr 1fr;gap:22px}
.compact-post{
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:16px;
  padding:24px;
  display:flex;
  flex-direction:column;
  transition:box-shadow .3s,border-color .3s,transform .3s;
}
.compact-post:hover{border-color:rgba(47,122,110,.45);box-shadow:var(--shadow-soft);transform:translateY(-3px)}
.compact-post h3{font-size:17px;font-weight:700;line-height:1.55;margin-top:10px}
.compact-post h3 a{color:var(--text-on-light-hi);transition:color .25s}
.compact-post h3 a:hover{color:var(--brand-secondary)}
.compact-post .post-excerpt{
  font-size:14px;
  color:var(--text-on-light-dim);
  margin-top:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  line-height:1.7;
}
.mini-posts{margin-top:6px;grid-column:1/-1;border-top:1px solid var(--line-light-strong)}
.mini-post{
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(220px,.6fr) auto;
  align-items:center;
  gap:20px;
  border-bottom:1px solid var(--line-light);
  padding:18px 4px;
  transition:background-color .25s,padding-left .3s;
}
.mini-post:hover{background:#F7F8F4;padding-left:12px;border-radius:10px}
.mini-post__title{font-size:16px;font-weight:600;line-height:1.5}
.mini-post__title a{transition:color .25s}
.mini-post__title a:hover{color:var(--brand-secondary)}
.mini-post__sum{font-size:13px;color:var(--text-on-light-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.5}
.mini-post__meta{display:flex;align-items:center;gap:10px;font-size:13px}
.mini-post__meta .post-date{color:var(--text-on-light-dim);white-space:nowrap}
.mini-post__go{
  color:var(--text-on-light-hi);
  width:36px;height:36px;
  border:1px solid var(--line-light-strong);
  border-radius:50%;
  display:grid;
  place-items:center;
  transition:background-color .25s,color .25s,transform .3s;
}
.mini-post:hover .mini-post__go{background:var(--ink-900);color:#fff;transform:translateX(3px)}
.mini-post__go svg{width:15px;height:15px}
.news-empty{
  margin-top:28px;
  padding:56px 24px;
  border:1px dashed var(--line-light-strong);
  border-radius:16px;
  text-align:center;
  font-size:15px;
  color:var(--text-on-light-dim);
}
@media(max-width:1024px){
  .news-layout{grid-template-columns:1fr}
  .news-feature{min-height:280px}
  .mini-post{grid-template-columns:1fr auto}
  .mini-post__sum{display:none}
}
@media(max-width:600px){
  .news-feature{padding:26px}
  .mini-post{display:flex;flex-direction:column;align-items:stretch;gap:8px}
  .mini-post__go{display:none}
  .mini-post__meta{flex-wrap:wrap}
}

/* ===== Security check ===== */
.security-grid{
  display:grid;
  grid-template-columns:minmax(320px,.9fr) minmax(0,1.1fr);
  gap:64px;
  align-items:center;
}
.security-media{
  border-radius:18px;
  overflow:hidden;
  position:relative;
  box-shadow:var(--shadow-soft);
}
.security-media img{width:100%;height:100%;min-height:300px;object-fit:cover}
.security-media__caption{
  position:absolute;
  left:16px;right:16px;bottom:16px;
  background:rgba(7,10,9,.82);
  border:1px solid rgba(255,255,255,.12);
  color:#fff;
  padding:12px 16px;
  font-size:13px;
  border-radius:10px;
  line-height:1.6;
  backdrop-filter:blur(4px);
}
.check-list{margin-top:26px}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:14px 0;
  border-bottom:1px solid var(--line-light);
  font-size:15px;
  line-height:1.8;
  color:var(--text-on-light-mid);
}
.check-list li:last-child{border-bottom:0}
.check-list .check-icon{
  width:24px;height:24px;
  margin-top:3px;
  border-radius:50%;
  background:rgba(47,122,110,.12);
  color:var(--brand-secondary);
  display:grid;
  place-items:center;
  flex-shrink:0;
}
.check-list .check-icon svg{width:14px;height:14px}
@media(max-width:1024px){
  .security-grid{grid-template-columns:1fr;gap:42px}
}

/* ===== FAQ ===== */
.faq-section{background:var(--paper-100)}
.faq-grid{
  display:grid;
  grid-template-columns:minmax(280px,.85fr) 1.15fr;
  gap:60px;
  align-items:start;
  margin-bottom:42px;
}
.faq-side .section-note{margin-top:18px;max-width:44ch}
.faq-list{border-top:1px solid var(--line-light-strong)}
.faq-item{border-bottom:1px solid var(--line-light-strong)}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text-on-light-hi);
  padding:0 8px;
  transition:color .25s,background-color .25s;
}
.faq-question:hover{color:var(--brand-secondary)}
.faq-question .faq-icon{
  flex-shrink:0;
  width:34px;height:34px;
  border:1px solid var(--line-light-strong);
  border-radius:50%;
  display:grid;
  place-items:center;
  transition:background-color .3s,color .3s,transform .3s,border-color .3s;
}
.faq-question .faq-icon::before{
  content:"";
  width:12px;height:2px;
  background:currentColor;
  display:block;
}
.faq-question .faq-icon::after{
  content:"";
  position:absolute;
  width:2px;height:12px;
  background:currentColor;
  display:block;
  transform:translateY(-50%);
  transition:transform .3s,background-color .3s;
}
.faq-item.is-open .faq-icon{background:var(--accent-signal);color:var(--ink-800);border-color:var(--accent-signal)}
.faq-item.is-open .faq-icon::after{transform:translateY(-50%) rotate(90deg);background:currentColor}
.faq-answer{
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .35s ease,opacity .3s ease;
}
.faq-answer__inner{
  padding:2px 44px 24px 16px;
}
.faq-answer p{
  border-left:2px solid var(--brand-secondary);
  padding-left:16px;
  color:var(--text-on-light-mid);
  font-size:15px;
  line-height:1.85;
}
.faq-item.is-open .faq-answer{max-height:360px;opacity:1}
@media(max-width:1024px){
  .faq-grid{grid-template-columns:1fr;gap:10px}
}

/* ===== CTA ===== */
.cta-outer{padding:0 0 var(--section-space);background:transparent}
.cta-panel{
  position:relative;
  background-color:var(--ink-800);
  background-image:linear-gradient(90deg,rgba(7,10,9,.92),rgba(12,18,16,.76)),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  border-radius:22px;
  overflow:hidden;
  padding:clamp(42px,6vw,76px);
  display:grid;
  grid-template-columns:1fr auto;
  gap:32px;
  align-items:center;
}
.cta-panel .kicker{color:var(--accent-signal)}
.cta-panel h2{
  font-size:clamp(28px,3.8vw,46px);
  margin:10px 0 16px;
  max-width:16ch;
}
.cta-panel p{color:var(--text-on-dark-mid);max-width:52ch;font-size:15px;line-height:1.85}
.cta-actions{display:flex;align-items:center;justify-content:flex-end;gap:22px;flex-wrap:wrap}
.cta-link{
  color:#fff;
  font-size:14px;
  font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.3);
  padding-bottom:3px;
  transition:color .25s,border-color .25s;
}
.cta-link:hover{color:var(--accent-signal);border-color:var(--accent-signal)}
@media(max-width:1024px){
  .cta-panel{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}
@media(max-width:600px){
  .cta-panel{padding:30px 24px}
  .cta-actions .btn{width:100%}
}

/* ===== Footer ===== */
.site-footer{background:var(--ink-900);color:var(--text-on-dark-mid);padding-top:70px;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(280px,1.25fr) .8fr .8fr 1.1fr;
  gap:48px;
  padding-bottom:56px;
  border-bottom:1px solid var(--line-dark);
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{
  color:var(--text-on-dark-dim);
  font-size:14px;
  line-height:1.85;
  max-width:36ch;
  margin-bottom:20px;
}
.footer-cert{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-on-dark-dim);
}
.footer-cert svg{width:17px;height:17px;color:var(--accent-signal);flex-shrink:0}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.06em;
}
.footer-col a,.footer-col .f-link{
  display:block;
  padding:6px 0;
  font-size:14px;
  color:var(--text-on-dark-dim);
  transition:color .25s,padding-left .25s;
}
.footer-col a:hover,.footer-col .f-link:hover{color:var(--accent-signal);padding-left:5px}
.footer-safe{
  border:1px solid rgba(217,108,74,.35);
  background:rgba(217,108,74,.08);
  border-radius:14px;
  padding:18px 20px;
}
.footer-safe h4{
  display:flex;
  align-items:center;
  gap:8px;
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:10px;
}
.footer-safe h4 svg{width:16px;height:16px;color:var(--danger)}
.footer-safe p{font-size:13px;line-height:1.8;color:var(--text-on-dark-mid)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  padding:22px 0 28px;
  font-size:13px;
  color:var(--text-on-dark-dim);
}
.footer-bottom span b{color:var(--text-on-dark-mid);font-weight:600}
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:600px){
  .footer-grid{grid-template-columns:1fr;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ===== Misc ===== */
.post-read{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-on-light-hi);border-bottom:1px solid transparent;transition:color .25s,border-color .25s}
.post-read:hover{color:var(--brand-secondary);border-bottom-color:rgba(47,122,110,.4)}
.post-read svg{width:15px;height:15px;transition:transform .3s}
.post-read:hover svg{transform:translateX(3px)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: article */
:root{
  --ink-900:#070A09;
  --ink-800:#0C1210;
  --ink-700:#121A17;
  --paper-100:#F5F6F1;
  --paper-200:#ECEFE7;
  --line-dark:rgba(255,255,255,0.10);
  --line-dark-strong:rgba(255,255,255,0.18);
  --line-light:rgba(6,10,9,0.08);
  --line-light-strong:rgba(6,10,9,0.16);
  --text-on-dark-hi:#FFFFFF;
  --text-on-dark-mid:rgba(255,255,255,0.72);
  --text-on-dark-dim:rgba(255,255,255,0.52);
  --text-on-light-hi:#101411;
  --text-on-light-mid:#3C443F;
  --text-on-light-dim:#6A736D;
  --accent-signal:#C6F24E;
  --accent-signal-strong:#D7FB66;
  --brand-secondary:#2F7A6E;
  --danger:#D96C4A;
  --success:#3FA47C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --font-num:"Inter","Segoe UI",sans-serif;
  --shadow-lift:0 18px 40px -16px rgba(0,0,0,0.25);
  --shadow-soft:0 12px 30px -18px rgba(0,0,0,0.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  background:var(--paper-100);
  color:var(--text-on-light-hi);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul,ol{list-style:none}
button,input,textarea{font:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
::selection{background:rgba(198,242,78,.28)}

/* Header */
.site-header{background:var(--ink-900);color:var(--text-on-dark-hi);position:relative;z-index:20}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;max-width:1280px;margin:0 auto}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:600;letter-spacing:.01em;color:#fff;line-height:1.2}
.brand__mark{
  display:grid;place-items:center;width:36px;height:36px;border-radius:11px;
  border:1px solid rgba(198,242,78,.38);
  background:rgba(198,242,78,.07);
  color:var(--accent-signal);
  flex:0 0 auto;
}
.brand__mark svg{width:21px;height:21px}
.brand__name{white-space:nowrap}
.header-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-on-dark-dim)}
.header-meta .dot{display:none}
.header-btn{
  display:inline-flex;align-items:center;justify-content:center;height:36px;padding:0 18px;
  border:1px solid var(--line-dark-strong);border-radius:999px;color:#fff;
  font-weight:600;font-size:13px;line-height:1;transition:border-color .25s,background-color .25s,transform .3s;
}
.header-btn:hover{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.04);transform:translateY(-1px)}
.header-btn:active{transform:translateY(0)}

.nav-row{border-top:1px solid var(--line-dark-strong);background:var(--ink-900)}
.nav-row__inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  max-width:1280px;margin:0 auto;padding:0 24px;min-height:52px;
}
.channel-nav{display:flex;align-items:center;flex-wrap:wrap}
.channel-link{
  position:relative;display:inline-flex;align-items:center;padding:0 18px;height:52px;
  color:var(--text-on-dark-mid);font-weight:600;font-size:14px;white-space:nowrap;
  transition:color .25s;
}
.channel-link::after{
  content:"";position:absolute;left:18px;bottom:0;height:2px;width:0;
  background:var(--accent-signal);transition:width .25s ease;
}
.channel-link:hover{color:var(--accent-signal)}
.channel-link.active{color:var(--accent-signal)}
.channel-link.active::after,:hover::after{width:24px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:none;border-radius:10px;background:transparent;color:#fff;font-size:22px;line-height:1;
  cursor:pointer;transition:background-color .2s;
}
.nav-toggle:hover{background:rgba(255,255,255,.06)}
.nav-toggle:focus-visible{outline:2px solid var(--accent-signal);outline-offset:2px}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;font-weight:600;font-size:14px;
  cursor:pointer;border:none;line-height:1.4;transition:transform .3s,box-shadow .3s,background-color .25s,border-color .25s;
}
.btn:focus-visible{outline:2px solid var(--accent-signal);outline-offset:3px}
.btn-primary{background:var(--accent-signal);color:var(--ink-800)}
.btn-primary:hover{background:var(--accent-signal-strong);transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(198,242,78,.65)}
.btn-primary:active{transform:translateY(0)}
.btn-dark{
  background:transparent;border:1px solid var(--line-light-strong);color:var(--ink-900);
}
.btn-dark:hover{background:var(--ink-900);color:#fff;border-color:var(--ink-900);transform:translateY(-2px)}
.btn-dark:active{transform:translateY(0)}
.btn-light{
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark-strong);color:#fff;
}
.btn-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-light:active{transform:translateY(0)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid transparent;transition:border-color .2s,gap .2s;
}
.link-arrow:hover{gap:10px;border-color:var(--ink-900)}
.link-arrow svg{width:16px;height:16px}

/* Hero */
.category-hero{
  background:
    linear-gradient(110deg,rgba(7,10,9,.94) 20%,rgba(7,10,9,.62) 74%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat,
    var(--ink-900);
  color:#fff;padding:72px 0 64px;border-bottom:1px solid var(--line-dark);
}
.category-hero .container{max-width:1280px}
.crumb{color:var(--text-on-dark-dim);font-size:13px;margin-bottom:22px;letter-spacing:.02em}
.crumb a{color:var(--text-on-dark-mid);transition:color .2s}
.crumb a:hover{color:var(--accent-signal)}
.hero-title{
  font-size:clamp(30px,4.6vw,58px);line-height:1.14;font-weight:700;
  letter-spacing:-.015em;max-width:860px;margin-bottom:22px;
}
.hero-title .accent-block{
  display:inline-block;color:var(--accent-signal);border-bottom:3px solid rgba(198,242,78,.35);padding-bottom:2px;
}
.hero-lead{font-size:16px;line-height:1.8;color:var(--text-on-dark-mid);max-width:760px;margin-bottom:28px}
.hero-chip{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;
}
.hero-chip a{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  border:1px solid var(--line-dark-strong);border-radius:999px;background:rgba(255,255,255,.03);
  color:var(--text-on-dark-mid);font-size:13px;font-weight:600;
  transition:border-color .25s,color .25s,background-color .25s,transform .25s;
}
.hero-chip a:hover{color:var(--accent-signal);border-color:rgba(198,242,78,.42);transform:translateY(-2px)}

/* Section scaffold */
.section{padding:88px 24px}
.section-dark{background:var(--ink-900);color:#fff;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.section-light{background:var(--paper-100)}
.section-pale{background:var(--paper-200)}
.section-head{max-width:920px;margin-bottom:48px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.with-link{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-secondary);
  letter-spacing:.12em;margin-bottom:12px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-signal)}
.section-head h2{font-size:clamp(26px,3vw,38px);line-height:1.2;font-weight:700;letter-spacing:-.01em;margin-bottom:12px}
.section-head p{color:var(--text-on-light-dim);font-size:15px;line-height:1.85;max-width:680px}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:var(--text-on-dark-dim)}

/* Step process */
.steps-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--line-light-strong);
}
.step-item{padding:32px 28px 26px;border-bottom:1px solid var(--line-light);position:relative;transition:background-color .25s}
.step-item + .step-item{border-left:1px solid var(--line-light)}
.step-item:hover{background:#fff}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border:1px solid rgba(47,122,110,.5);border-radius:50%;background:rgba(47,122,110,.1);
  color:var(--brand-secondary);font-family:var(--font-num);font-weight:700;font-size:15px;
  margin-bottom:22px;
}
.step-item h3{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:10px}
.step-item p{color:var(--text-on-light-dim);font-size:14px;line-height:1.75;max-width:300px}

/* Split media */
.split-grid{
  display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center;
}
.split-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lift)}
.split-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-visual::after{
  content:"";position:absolute;inset:0;background:linear-gradient(rgba(7,10,9,.04),rgba(7,10,9,.28));pointer-events:none;
}
.split-content .eyebrow{margin-bottom:10px}
.split-content h2{
  font-size:clamp(24px,2.8vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:16px;
}
.split-content > p{color:var(--text-on-light-dim);margin-bottom:26px;line-height:1.9;max-width:540px}
.check-list{display:grid;gap:0;margin-bottom:30px}
.check-list li{
  position:relative;padding:12px 0 12px 36px;border-top:1px solid var(--line-light);
  color:var(--text-on-light-mid);font-size:15px;line-height:1.7;
}
.check-list li:last-child{border-bottom:1px solid var(--line-light)}
.check-list li::before{
  content:"";position:absolute;left:0;top:16px;width:20px;height:20px;
  background:var(--accent-signal);border-radius:50%;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center/14px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center/14px no-repeat;
}

/* Action band */
.action-band{
  background:linear-gradient(100deg,var(--ink-800),var(--ink-700));
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
  color:#fff;position:relative;overflow:hidden;
}
.action-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;
  border:1px solid rgba(198,242,78,.12);border-radius:50%;pointer-events:none;
}
.action-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  max-width:1280px;margin:0 auto;padding:56px 24px;
}
.action-band h2{font-size:clamp(24px,2.8vw,38px);font-weight:700;line-height:1.25;margin-bottom:12px}
.action-band p{color:var(--text-on-dark-dim);max-width:620px;line-height:1.85}
.action-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.action-actions .btn{white-space:nowrap}

/* Dynamic list */
.dynamic-list{display:grid;gap:28px}
.dynamic-card{
  display:grid;grid-template-columns:340px 1fr;gap:28px;align-items:stretch;
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-lg);
  overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;
}
.dynamic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(47,122,110,.3)}
.dynamic-card:nth-child(even){direction:ltr}
.dynamic-thumb{position:relative;overflow:hidden;min-height:200px}
.dynamic-thumb img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.dynamic-thumb::after{
  content:"";position:absolute;inset:0;background:linear-gradient(rgba(7,10,9,.06),rgba(7,10,9,.50));
}
.dynamic-body{padding:30px 32px 24px;display:flex;flex-direction:column;justify-content:center}
.meta-row{display:flex;align-items:center;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.tag{
  display:inline-flex;height:26px;align-items:center;padding:0 12px;border-radius:999px;
  background:rgba(47,122,110,.1);border:1px solid rgba(47,122,110,.25);
  color:var(--brand-secondary);font-size:12px;font-weight:600;
}
.meta-row time{font-size:13px;color:var(--text-on-light-dim);font-family:var(--font-num)}
.dynamic-body h3{font-size:20px;font-weight:700;line-height:1.45;margin-bottom:10px}
.dynamic-body h3 a{transition:color .2s}
.dynamic-body h3 a:hover{color:var(--brand-secondary)}
.dynamic-body p{color:var(--text-on-light-dim);font-size:14px;line-height:1.75}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:320px 1fr;gap:60px}
.faq-intro h2{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:14px}
.faq-intro p{color:var(--text-on-light-dim);font-size:15px;line-height:1.8;max-width:320px}
.faq-accordion{border-top:1px solid var(--line-light-strong)}
.faq-accordion details{border-bottom:1px solid var(--line-light-strong);border-radius:0;background:transparent}
.faq-accordion summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;
  min-height:64px;padding:14px 8px;cursor:pointer;font-size:16px;font-weight:700;
  color:var(--text-on-light-hi);gap:16px;transition:color .2s,background-color .2s;
}
.faq-accordion summary::-webkit-details-marker{display:none}
.faq-accordion summary:hover{color:var(--brand-secondary)}
.faq-accordion summary::after{
  content:"+";flex:0 0 auto;font-size:28px;font-weight:400;color:var(--brand-secondary);
  transition:transform .3s;line-height:1;width:20px;text-align:center;
}
.faq-accordion details[open] summary::after{transform:rotate(45deg)}
.faq-answer{
  margin-left:8px;padding:4px 24px 28px;border-left:2px solid var(--brand-secondary);
  color:var(--text-on-light-mid);font-size:15px;line-height:1.85;max-width:760px;
}
.faq-answer p + p{margin-top:12px}

/* Safety CTA */
.final-cta{
  background:var(--ink-900);color:#fff;border-top:1px solid var(--line-dark);
  padding:72px 24px;
}
.final-cta__inner{
  max-width:900px;margin:0 auto;text-align:center;
  border:1px solid var(--line-dark-strong);border-radius:24px;
  padding:56px 40px;position:relative;overflow:hidden;background:linear-gradient(180deg,rgba(198,242,78,.03),rgba(198,242,78,0));
}
.safe-mark{
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:48px;height:48px;border-radius:50%;margin:0 auto 20px;
  background:rgba(217,108,74,.1);border:1px solid rgba(217,108,74,.28);color:var(--danger);
}
.safe-mark svg{width:24px;height:24px}
.final-cta h2{font-size:clamp(24px,3vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-bottom:16px}
.final-cta p{color:var(--text-on-dark-dim);max-width:620px;margin:0 auto 32px;line-height:1.85}

/* Footer */
.site-footer{background:#050706;color:rgba(255,255,255,.55);border-top:1px solid var(--line-dark)}
.site-footer .container{max-width:1280px;margin:0 auto;padding:64px 24px 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr 1.2fr;gap:48px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand > p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.46);max-width:340px;margin-bottom:22px}
.footer-cert{
  display:flex;gap:12px;align-items:flex-start;background:rgba(255,255,255,.03);
  border:1px solid var(--line-dark);border-radius:12px;padding:14px 16px;
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.5);max-width:360px;
}
.footer-cert svg{width:18px;height:18px;flex:0 0 auto;color:var(--accent-signal);margin-top:2px}
.footer-col{display:flex;flex-direction:column;gap:0}
.footer-col h4,.footer-safe h4{
  font-size:14px;font-weight:700;color:rgba(255,255,255,.82);margin-bottom:18px;letter-spacing:.02em;
}
.footer-col a{
  display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.48);
  transition:color .2s,padding-left .2s;
}
.footer-col a:hover{color:var(--accent-signal);padding-left:4px}
.footer-safe p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.4)}
.footer-safe h4{display:flex;align-items:center;gap:8px}
.footer-safe h4 svg{width:18px;height:18px;color:var(--danger)}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.36);
}
.footer-bottom b{font-weight:600;color:rgba(255,255,255,.6)}

/* Responsive */
@media(max-width:1024px){
  .section{padding:64px 20px}
  .split-grid{grid-template-columns:1fr;gap:40px}
  .split-visual img{aspect-ratio:16/9}
  .faq-layout{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .dynamic-card{grid-template-columns:280px 1fr}
}
@media(max-width:768px){
  .header-meta .header-note{display:none}
  .nav-toggle{display:inline-flex}
  .channel-nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;
    padding-bottom:14px;
  }
  .channel-nav.open{display:flex}
  .channel-link{height:48px;line-height:48px;padding:0 8px}
  .channel-link::after{left:8px;top:50%;right:auto;width:3px;height:0;bottom:auto;transform:translateY(-50%);transition:height .25s;background:var(--accent-signal)}
  .channel-link.active::after{height:18px;width:3px}
  .nav-row__inner{flex-wrap:wrap;padding-top:10px;padding-bottom:0}
  .steps-grid{grid-template-columns:1fr}
  .step-item + .step-item{border-left:none;border-top:1px solid var(--line-light)}
  .action-band__inner{flex-direction:column;align-items:flex-start;padding:44px 20px}
  .dynamic-list{grid-template-columns:1fr}
  .dynamic-card{grid-template-columns:1fr}
  .dynamic-thumb{min-height:200px;position:relative}
  .dynamic-thumb img{position:static;height:auto;aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .final-cta__inner{padding:36px 20px}
  .section-head{margin-bottom:32px}
}
@media(max-width:480px){
  .category-hero{padding:48px 16px}
  .section{padding:48px 14px}
  .header-top{padding:14px 16px}
  .nav-row__inner{padding:0 16px}
  .step-item{padding:24px 16px}
  .dynamic-body{padding:20px}
  .action-actions a{width:100%}
  .final-cta__inner{border-radius:16px}
  .check-list li{font-size:14px}
}

/* roulang page: category1 */
:root{
  --ink-900:#070A09;
  --ink-800:#0C1210;
  --ink-700:#121A17;
  --paper-100:#F5F6F1;
  --paper-200:#ECEFE7;
  --line-dark:rgba(255,255,255,0.10);
  --line-dark-strong:rgba(255,255,255,0.18);
  --line-light:rgba(6,10,9,0.08);
  --line-light-strong:rgba(6,10,9,0.16);
  --text-on-dark-hi:#FFFFFF;
  --text-on-dark-mid:rgba(255,255,255,0.72);
  --text-on-dark-dim:rgba(255,255,255,0.52);
  --text-on-light-hi:#101411;
  --text-on-light-mid:#3C443F;
  --text-on-light-dim:#6A736D;
  --accent-signal:#C6F24E;
  --accent-signal-strong:#D7FB66;
  --brand-secondary:#2F7A6E;
  --danger:#D96C4A;
  --success:#3FA47C;
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","Inter","Segoe UI",sans-serif;
  --space-section:120px;
  --radius-card:16px;
  --radius-pill:999px;
}

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

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--ink-900);
  color:var(--text-on-light-hi);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body,
h1,h2,h3,h4,p,figure,ul,ol,dl,dd{margin:0;}

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

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

button,
input{font-family:inherit;}

a:focus-visible,
button:focus-visible{
  outline:2px solid var(--accent-signal);
  outline-offset:2px;
}

.container{
  width:100%;
  max-width:1280px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}

.section{
  padding:var(--space-section) 0;
}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:56px;
}

.section-head__left{
  max-width:680px;
}

.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(47,122,110,0.12);
  color:var(--brand-secondary);
  font-size:13px;
  font-weight:600;
}

.section-head h2{
  margin-top:14px;
  font-size:clamp(26px,3vw,36px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-0.02em;
}

.section-head p{
  max-width:440px;
  color:var(--text-on-light-dim);
  font-size:15px;
  line-height:1.8;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-pill);
  border:0;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .25s ease,color .25s ease,transform .3s ease,box-shadow .3s ease,border-color .25s ease;
}

.btn-primary{
  background:var(--accent-signal);
  color:var(--ink-800);
}

.btn-primary:hover{
  background:var(--accent-signal-strong);
  transform:translateY(-2px);
  box-shadow:0 14px 30px -18px rgba(198,242,78,0.55);
}

.btn-primary:active{
  transform:translateY(0);
}

.btn-ghost-light{
  background:transparent;
  border:1px solid rgba(255,255,255,0.3);
  color:var(--text-on-dark-hi);
}

.btn-ghost-light:hover{
  border-color:var(--accent-signal);
  color:var(--accent-signal);
  transform:translateY(-2px);
}

.btn-ghost-dark{
  background:transparent;
  border:1px solid var(--line-light-strong);
  color:var(--text-on-light-hi);
}

.btn-ghost-dark:hover{
  background:var(--ink-900);
  color:var(--text-on-dark-hi);
  border-color:var(--ink-900);
  transform:translateY(-2px);
}

.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:32px;
  font-size:14px;
  font-weight:600;
  color:var(--text-on-light-hi);
  transition:gap .25s ease;
}

.arrow-link:hover{
  gap:12px;
}

/* ===== Header ===== */
.site-header{
  position:relative;
  z-index:50;
  background:var(--ink-900);
  color:var(--text-on-dark-hi);
}

.header-main{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  padding-top:14px;
  padding-bottom:14px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--text-on-dark-hi);
}

.brand__mark{
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:var(--ink-700);
  color:var(--accent-signal);
  box-shadow:0 0 0 1px var(--line-dark-strong);
}

.brand__mark svg{
  width:21px;
  height:21px;
}

.brand__name{
  font-size:18px;
  font-weight:600;
  letter-spacing:0.01em;
}

.header-tools{
  display:flex;
  align-items:center;
  gap:20px;
}

.header-safe{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--text-on-dark-dim);
  font-size:13px;
}

.header-safe::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 0 4px rgba(63,164,124,0.16);
}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  background:transparent;
  border:1px solid rgba(255,255,255,0.18);
  border-radius:10px;
  cursor:pointer;
  padding:0;
  transition:border-color .25s ease;
}

.nav-toggle:hover{
  border-color:var(--accent-signal);
}

.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--text-on-dark-hi);
  border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}

.site-header.open .nav-toggle span:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}

.site-header.open .nav-toggle span:nth-child(2){
  transform:translateY(0) rotate(-45deg);
}

.channel-nav{
  background:var(--ink-900);
  border-top:1px solid var(--line-dark-strong);
}

.channel-nav__inner{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
}

.channel-nav__inner::-webkit-scrollbar{
  display:none;
}

.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:14px 16px 12px;
  color:var(--text-on-dark-mid);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:color .25s ease;
}

.channel-link::after{
  content:"";
  position:absolute;
  left:16px;
  bottom:4px;
  width:20px;
  height:2px;
  background:var(--accent-signal);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s ease;
}

.channel-link:hover{
  color:var(--text-on-dark-hi);
}

.channel-link:hover::after{
  transform:scaleX(1);
}

.channel-link.active{
  color:var(--accent-signal);
}

.channel-link.active::after{
  transform:scaleX(1);
}

/* ===== Category hero ===== */
.category-hero{
  position:relative;
  background:
    linear-gradient(100deg,rgba(7,10,9,0.94) 0%,rgba(7,10,9,0.78) 52%,rgba(7,10,9,0.86) 100%),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:var(--text-on-dark-hi);
  border-bottom:1px solid var(--line-dark-strong);
  overflow:hidden;
}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(320px,0.72fr);
  gap:64px;
  align-items:center;
  padding:80px 0 48px;
}

.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-on-dark-dim);
  font-size:13px;
  font-weight:500;
  letter-spacing:0.04em;
}

.hero-eyebrow::before{
  content:"";
  width:26px;
  height:2px;
  background:var(--accent-signal);
}

.category-hero h1{
  margin-top:18px;
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.12;
  font-weight:700;
  letter-spacing:-0.02em;
  max-width:11em;
}

.hero-sub{
  max-width:560px;
  margin-top:22px;
  color:var(--text-on-dark-mid);
  font-size:17px;
  line-height:1.9;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}

.hero-cover{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--line-dark-strong);
  box-shadow:0 30px 70px -36px rgba(0,0,0,0.85);
}

.hero-cover img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  filter:saturate(0.96);
}

.hero-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(7,10,9,0.02) 30%,rgba(7,10,9,0.62) 100%);
  pointer-events:none;
}

.hero-cover__badge{
  position:absolute;
  left:18px;
  bottom:18px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(7,10,9,0.72);
  border:1px solid rgba(255,255,255,0.18);
  color:var(--text-on-dark-hi);
  font-size:13px;
  font-weight:500;
  backdrop-filter:blur(8px);
}

.hero-cover__badge svg{
  width:16px;
  height:16px;
  color:var(--accent-signal);
}

.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line-dark-strong);
  margin-top:56px;
}

.hero-metric{
  padding:22px 24px 20px;
  border-left:1px solid var(--line-dark-strong);
}

.hero-metric:first-child{
  padding-left:0;
  border-left:0;
}

.hero-metric strong{
  display:block;
  color:var(--text-on-dark-hi);
  font-size:22px;
  font-weight:700;
  line-height:1.3;
}

.hero-metric span{
  display:block;
  margin-top:4px;
  color:var(--text-on-dark-dim);
  font-size:13px;
}

/* ===== Process guide ===== */
.process-block{
  background:var(--paper-100);
  padding:var(--space-section) 0;
}

.step-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:20px;
}

.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:18px;
  padding:28px 22px 24px;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}

.step-card:hover{
  transform:translateY(-4px);
  border-color:var(--brand-secondary);
  box-shadow:0 18px 40px -18px rgba(0,0,0,0.12);
}

.step-card__num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:50%;
  border:1px solid rgba(47,122,110,0.38);
  background:rgba(47,122,110,0.12);
  color:var(--brand-secondary);
  font-size:14px;
  font-weight:700;
}

.step-card h3{
  margin-top:20px;
  font-size:20px;
  font-weight:700;
  line-height:1.4;
  letter-spacing:-0.01em;
}

.step-card p{
  margin-top:10px;
  color:var(--text-on-light-dim);
  font-size:14px;
  line-height:1.75;
}

/* ===== Checklist split ===== */
.check-panel{
  background:#fff;
  padding:var(--space-section) 0;
}

.check-split{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,0.95fr);
  gap:72px;
  align-items:center;
}

.check-media{
  overflow:hidden;
  border-radius:22px;
  border:1px solid var(--line-light);
  box-shadow:0 24px 55px -24px rgba(0,0,0,0.14);
}

.check-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
}

.check-media figcaption{
  background:var(--paper-100);
  padding:14px 20px;
  color:var(--text-on-light-dim);
  font-size:13px;
  border-top:1px solid var(--line-light);
  display:flex;
  align-items:center;
  gap:8px;
}

.check-media figcaption::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-secondary);
}

.check-copy h2{
  font-size:clamp(26px,3vw,36px);
  line-height:1.25;
  letter-spacing:-0.02em;
  font-weight:700;
}

.check-copy > p{
  margin-top:18px;
  color:var(--text-on-light-mid);
  font-size:16px;
  line-height:1.85;
}

.check-list{
  list-style:none;
  padding:0;
  margin-top:30px;
  border-top:1px solid var(--line-light);
}

.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 0;
  border-bottom:1px solid var(--line-light);
}

.check-list li svg{
  flex:0 0 20px;
  width:20px;
  height:20px;
  margin-top:3px;
  color:var(--success);
}

.check-list li b{
  display:block;
  font-size:16px;
  font-weight:600;
}

.check-list li span{
  display:block;
  margin-top:2px;
  color:var(--text-on-light-dim);
  font-size:14px;
  line-height:1.7;
}

.check-note{
  display:flex;
  gap:12px;
  margin-top:22px;
  padding:16px 18px;
  background:var(--paper-100);
  border-radius:14px;
  border:1px solid var(--line-light);
}

.check-note svg{
  flex:0 0 22px;
  width:22px;
  height:22px;
  color:var(--actent-signal,var(--brand-secondary));
}

.check-note p{
  font-size:14px;
  color:var(--text-on-light-mid);
  line-height:1.75;
}

/* ===== CTA band ===== */
.cta-band{
  background:
    linear-gradient(135deg,rgba(7,10,9,0.72) 0%,rgba(12,18,16,0.9) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:var(--text-on-dark-hi);
  border-top:1px solid var(--line-dark-strong);
  border-bottom:1px solid var(--line-dark-strong);
  padding:84px 0;
}

.cta-band__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:48px;
}

.cta-band__copy{
  max-width:720px;
}

.cta-band__copy h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-0.01em;
}

.cta-band__copy p{
  margin-top:16px;
  color:var(--text-on-dark-mid);
  font-size:16px;
  line-height:1.85;
}

.cta-band__actions{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:12px;
  flex:0 0 auto;
}

.cta-band__actions .link-soft{
  color:var(--text-on-dark-dim);
  font-size:13px;
  border-bottom:1px solid rgba(255,255,255,0.2);
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}

.cta-band__actions .link-soft:hover{
  color:var(--accent-signal);
  border-color:var(--accent-signal);
}

/* ===== Feed updates ===== */
.feed-updates{
  background:var(--paper-100);
  padding:var(--space-section) 0;
}

.post-stack{
  display:flex;
  flex-direction:column;
  gap:24px;
}

.post-row{
  display:grid;
  grid-template-columns:minmax(0,0.9fr) minmax(0,1.1fr);
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:20px;
  overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}

.post-row:hover{
  transform:translateY(-4px);
  border-color:var(--brand-secondary);
  box-shadow:0 18px 40px -20px rgba(0,0,0,0.16);
}

.post-row--reverse .post-photo{
  order:2;
}

.post-row--reverse .post-body{
  order:1;
}

.post-photo img{
  width:100%;
  height:100%;
  min-height:260px;
  max-height:360px;
  object-fit:cover;
}

.post-body{
  padding:34px 38px;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
}

.post-body .post-kicker{
  color:var(--brand-secondary);
  font-size:13px;
  font-weight:600;
  letter-spacing:0.02em;
}

.post-body h3{
  margin-top:12px;
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  letter-spacing:-0.01em;
}

.post-body>p{
  margin-top:12px;
  color:var(--text-on-light-mid);
  font-size:15px;
  line-height:1.8;
  max-width:56ch;
}

.post-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:20px;
  color:var(--text-on-light-dim);
  font-size:13px;
}

.post-meta time{
  display:inline-flex;
  align-items:center;
  gap:5px;
}

.post-meta .post-cta{
  margin-left:auto;
}

/* ===== FAQ ===== */
.faq-block{
  background:var(--paper-100);
  padding:var(--space-section) 0;
}

.faq-layout{
  display:grid;
  grid-template-columns:minmax(260px,0.38fr) minmax(0,1fr);
  gap:56px;
  align-items:start;
}

.faq-aside{
  position:sticky;
  top:80px;
}

.faq-aside h2{
  margin-top:16px;
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  letter-spacing:-0.01em;
}

.faq-aside p{
  margin-top:16px;
  color:var(--text-on-light-dim);
  font-size:15px;
  line-height:1.8;
}

.faq-aside .btn{
  margin-top:24px;
}

.faq-list{
  border-top:1px solid var(--line-light-strong);
  background:#fff;
  border-radius:20px;
  padding:0 32px;
  border:1px solid var(--line-light);
}

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

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

.faq-question{
  display:flex;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding:14px 0;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  color:var(--text-on-light-hi);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  transition:color .2s ease;
}

.faq-question:hover{
  color:var(--brand-secondary);
}

.faq-question .faq-icon{
  position:relative;
  flex:0 0 18px;
  width:18px;
  height:18px;
  color:var(--text-on-light-mid);
}

.faq-question .faq-icon::before,
.faq-question .faq-icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:14px;
  height:2px;
  background:currentColor;
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .3s ease,background-color .3s ease;
}

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

.faq-item.open .faq-question{
  color:var(--brand-secondary);
}

.faq-item.open .faq-icon::after{
  transform:translate(-50%,-50%) rotate(0deg);
}

.faq-answer{
  display:grid;
  grid-template-rows:0fr;
  opacity:0;
  transition:grid-template-rows .3s ease,opacity .3s ease;
}

.faq-item.open .faq-answer{
  grid-template-rows:1fr;
  opacity:1;
}

.faq-answer__inner{
  overflow:hidden;
  min-height:0;
  padding-right:28px;
}

.faq-answer__inner p{
  padding:0 0 20px;
  border-left:2px solid var(--brand-secondary);
  padding-left:20px;
  color:var(--text-on-light-mid);
  font-size:15px;
  line-height:1.85;
}

/* ===== Final CTA ===== */
.final-cta{
  background:#fff;
  padding:80px 0 96px;
}

.final-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:44px 48px;
  background:var(--paper-200);
  border:1px solid var(--line-light);
  border-radius:24px;
}

.final-card h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:-0.01em;
}

.final-card p{
  margin-top:12px;
  max-width:58ch;
  color:var(--text-on-light-mid);
  font-size:15px;
  line-height:1.8;
}

.final-card__actions{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

.final-card__actions .text-link{
  font-size:14px;
  color:var(--text-on-light-mid);
  border-bottom:1px solid var(--line-light-strong);
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}

.final-card__actions .text-link:hover{
  color:var(--ink-900);
  border-color:var(--ink-900);
}

/* ===== Footer ===== */
.site-footer{
  background:var(--ink-900);
  color:var(--text-on-dark-mid);
  padding-top:72px;
}

.site-footer .brand{
  color:var(--text-on-dark-hi);
}

.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.8fr 1.1fr;
  gap:48px;
  padding-bottom:56px;
  border-bottom:1px solid var(--line-dark);
}

.footer-brand .brand__mark{
  background:var(--ink-700);
}

.footer-brand>p{
  margin-top:18px;
  max-width:36ch;
  color:var(--text-on-dark-dim);
  font-size:14px;
  line-height:1.8;
}

.footer-cert{
  display:flex;
  gap:10px;
  margin-top:20px;
  padding:14px 16px;
  border:1px solid var(--line-dark-strong);
  border-radius:14px;
  align-items:flex-start;
}

.footer-cert svg{
  flex:0 0 20px;
  width:20px;
  height:20px;
  margin-top:2px;
  color:var(--accent-signal);
}

.footer-cert span{
  font-size:13px;
  color:var(--text-on-dark-dim);
  line-height:1.7;
}

.footer-col{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
  padding-top:8px;
}

.footer-col h4,
.footer-safe h4{
  margin-bottom:10px;
  color:var(--text-on-dark-hi);
  font-size:15px;
  font-weight:600;
}

.footer-col a{
  color:var(--text-on-dark-dim);
  font-size:14px;
  line-height:1.7;
  transition:color .25s ease;
}

.footer-col a:hover{
  color:var(--accent-signal);
}

.footer-safe{
  padding:18px 20px;
  background:var(--ink-700);
  border:1px solid var(--line-dark);
  border-radius:16px;
}

.footer-safe h4{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:12px;
  color:var(--danger);
  font-size:15px;
}

.footer-safe h4 svg{
  width:18px;
  height:18px;
}

.footer-safe p{
  font-size:13px;
  line-height:1.8;
  color:var(--text-on-dark-dim);
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 30px;
  color:rgba(255,255,255,0.45);
  font-size:13px;
}

.footer-bottom b{
  color:var(--text-on-dark-dim);
  font-weight:500;
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  :root{
    --space-section:100px;
  }

  .hero-grid{
    grid-template-columns:minmax(0,1.35fr) minmax(280px,0.65fr);
    gap:44px;
    padding-top:60px;
  }

  .step-grid{
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:16px;
  }

  .check-split{
    gap:48px;
  }

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

  .cta-band__actions{
    flex-direction:row;
    align-items:center;
    flex-wrap:wrap;
  }

  .post-body{
    padding:28px;
  }

  .faq-layout{
    grid-template-columns:0.4fr 1fr;
    gap:36px;
  }

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

@media (max-width:768px){
  .nav-toggle{
    display:inline-flex;
  }

  .header-safe{
    display:none;
  }

  .channel-nav{
    max-height:0;
    overflow:hidden;
    border-top:0;
    transition:max-height .35s ease;
  }

  .channel-nav__inner{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:6px 0 14px;
  }

  .site-header.open .channel-nav{
    max-height:520px;
    border-top:1px solid var(--line-dark-strong);
  }

  .channel-link{
    justify-content:flex-start;
    padding:14px 6px;
    border-bottom:1px solid rgba(255,255,255,0.07);
  }

  .channel-link::after{
    width:0;
  }

  .channel-link.active{
    color:var(--text-on-dark-hi);
    background:rgba(198,242,78,0.09);
    border-radius:10px 0 0 10px;
    border-image:linear-gradient(180deg,var(--accent-signal) 0%,var(--accent-signal) 100%) 1;
    border-bottom-width:0;
    padding-left:12px;
  }

  .hero-grid{
    grid-template-columns:1fr;
    gap:40px;
    padding-top:52px;
  }

  .hero-metrics{
    grid-template-columns:1fr;
    margin-top:40px;
  }

  .hero-metric{
    padding:14px 16px 14px 0;
    border-left:0;
    border-top:1px solid var(--line-dark-strong);
  }

  .hero-metric:first-child{
    border-top:0;
    padding-left:0;
  }

  .step-grid{
    grid-template-columns:1fr;
    gap:14px;
  }

  .step-card{
    display:flex;
    gap:18px;
    align-items:flex-start;
    padding:20px;
  }

  .step-card h3{
    margin-top:0;
  }

  .step-card p{
    margin-top:6px;
  }

  .section-head{
    flex-direction:column;
    align-items:flex-start;
    gap:16px;
    margin-bottom:36px;
  }

  .check-split{
    grid-template-columns:1fr;
  }

  .post-row,
  .post-row--reverse{
    grid-template-columns:1fr;
  }

  .post-row--reverse .post-photo{
    order:1;
  }

  .post-row--reverse .post-body{
    order:2;
  }

  .post-photo img{
    max-height:280px;
    min-height:220px;
  }

  .post-body h3{
    font-size:19px;
  }

  .faq-layout{
    grid-template-columns:1fr;
  }

  .faq-aside{
    position:static;
  }

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

  .faq-question{
    font-size:15px;
  }

  .faq-answer__inner p{
    font-size:14px;
  }

  .final-card{
    flex-direction:column;
    align-items:flex-start;
    padding:32px;
  }

  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
  }

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

@media (max-width:520px){
  :root{
    --space-section:84px;
  }

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

  .brand__name{
    font-size:17px;
  }

  .category-hero h1{
    font-size:32px;
  }

  .hero-actions .btn{
    width:100%;
  }

  .post-body{
    padding:22px 20px;
  }

  .final-card{
    padding:26px 22px;
  }

  .final-card__actions .btn{
    width:100%;
  }
}

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

/* roulang page: category3 */
/* ===== 设计变量 ===== */
    :root {
      --ink-900: #070A09;
      --ink-800: #0C1210;
      --ink-700: #121A17;
      --paper-100: #F5F6F1;
      --paper-200: #ECEFE7;
      --line-dark: rgba(255, 255, 255, 0.10);
      --line-dark-strong: rgba(255, 255, 255, 0.18);
      --line-light: rgba(6, 10, 9, 0.08);
      --line-light-strong: rgba(6, 10, 9, 0.16);
      --text-on-dark-hi: #FFFFFF;
      --text-on-dark-mid: rgba(255, 255, 255, 0.72);
      --text-on-dark-dim: rgba(255, 255, 255, 0.52);
      --text-on-light-hi: #101411;
      --text-on-light-mid: #3C443F;
      --text-on-light-dim: #6A736D;
      --accent-signal: #C6F24E;
      --accent-signal-strong: #D7FB66;
      --brand-secondary: #2F7A6E;
      --danger: #D96C4A;
      --success: #3FA47C;
      --max-width: 1280px;
      --radius-card: 16px;
      --radius-input: 8px;
      --radius-btn: 999px;
      --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
      --font-en: "Inter", "Segoe UI", sans-serif;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font-cn);
      font-size: 16px;
      line-height: 1.7;
      background: var(--paper-100);
      color: var(--text-on-light-hi);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    img {
      max-width: 100%;
      display: block;
      border: 0;
    }
    a {
      color: var(--ink-900);
      text-decoration-thickness: 0.08em;
      text-underline-offset: 3px;
      transition: color .25s, background-color .25s, border-color .25s, box-shadow .25s, transform .3s;
    }
    a:hover {
      color: var(--text-on-light-hi);
    }
    button {
      font-family: inherit;
      border: none;
      background: none;
      cursor: pointer;
    }
    a:focus-visible, button:focus-visible {
      outline: 2px solid var(--accent-signal);
      outline-offset: 2px;
      border-radius: 4px;
    }

    /* ===== 通用容器 ===== */
    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }
    .section {
      padding: 96px 0;
    }
    .section-tight {
      padding: 64px 0;
    }

    /* ===== 头部（两行结构） ===== */
    .site-header {
      background: var(--ink-900);
      position: relative;
      z-index: 50;
    }
    .header-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 0;
      gap: 16px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      color: var(--text-on-dark-hi);
    }
    .brand__mark {
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-signal);
      flex-shrink: 0;
      transition: transform 0.3s ease;
    }
    .brand:hover .brand__mark {
      transform: rotate(-4deg);
    }
    .brand__mark svg {
      width: 32px;
      height: 32px;
    }
    .brand__name {
      font-size: 20px;
      font-weight: 600;
      letter-spacing: -0.01em;
      white-space: nowrap;
    }
    .header-meta {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .header-meta__text {
      color: var(--text-on-dark-mid);
      font-size: 13px;
      letter-spacing: 0.03em;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .header-meta__text svg {
      width: 17px;
      height: 17px;
      color: var(--accent-signal);
      opacity: 0.85;
    }
    .header-meta .btn {
      padding: 0 20px;
      height: 36px;
      font-size: 13px;
    }
    .channel-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      border-top: 1px solid var(--line-dark-strong);
      padding: 4px 0;
      flex-wrap: wrap;
    }
    .channel-link {
      color: var(--text-on-dark-mid);
      text-decoration: none;
      font-size: 15px;
      padding: 12px 16px;
      position: relative;
      white-space: nowrap;
      font-weight: 400;
      letter-spacing: 0.02em;
      border-radius: 6px;
      transition: color .25s, background-color .25s;
    }
    .channel-link::after {
      content: '';
      position: absolute;
      left: 16px;
      bottom: 8px;
      width: 20px;
      height: 2px;
      background: var(--accent-signal);
      border-radius: 0;
      transform: scaleX(0);
      transform-origin: left center;
      transition: transform .3s ease, width .3s ease;
    }
    .channel-link:hover {
      color: var(--text-on-dark-hi);
      background: rgba(255,255,255,0.04);
    }
    .channel-link:hover::after {
      transform: scaleX(1);
      width: 28px;
    }
    .channel-link.active {
      color: var(--text-on-dark-hi);
      font-weight: 500;
    }
    .channel-link.active::after {
      transform: scaleX(1);
    }

    /* 汉堡 */
    .burger-btn {
      display: none;
      width: 42px;
      height: 42px;
      align-items: center;
      justify-content: center;
      color: var(--text-on-dark-hi);
      border: 1px solid var(--line-dark-strong);
      border-radius: 8px;
      background: var(--ink-800);
    }
    .burger-btn svg {
      width: 22px;
      height: 22px;
      stroke-width: 1.8;
    }

    /* 通道抽屉 */
    .mobile-nav {
      display: none;
      background: var(--ink-900);
      border-top: 1px solid var(--line-dark-strong);
      padding: 12px 24px 20px;
    }
    .mobile-nav.open {
      display: block;
    }
    .mobile-nav .channel-link {
      display: block;
      border-bottom: 1px solid var(--line-dark);
      border-radius: 0;
    }

    /* ===== 按钮 ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      height: 48px;
      padding: 0 28px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 600;
      text-decoration: none;
      font-family: var(--font-cn);
      letter-spacing: 0.02em;
      transition: background-color .25s, border-color .25s, transform .3s, box-shadow .3s, color .25s;
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
      line-height: 1;
    }
    .btn svg {
      width: 18px;
      height: 18px;
      transition: transform .3s;
    }
    .btn-primary {
      background: var(--accent-signal);
      color: var(--ink-800);
    }
    .btn-primary:hover {
      background: var(--accent-signal-strong);
      transform: translateY(-2px);
      box-shadow: 0 12px 32px -12px rgba(0,0,0,0.4);
      color: var(--ink-800);
    }
    .btn-primary:active {
      transform: translateY(0);
      box-shadow: none;
    }
    .btn-primary svg {
      stroke: var(--ink-800);
    }
    .btn-dark {
      background: transparent;
      color: var(--text-on-dark-hi);
      border-color: var(--line-dark-strong);
    }
    .btn-dark:hover {
      background: rgba(255,255,255,0.08);
      color: #fff;
      transform: translateY(-2px);
      border-color: rgba(255,255,255,0.4);
    }
    .btn-light {
      background: transparent;
      color: var(--text-on-light-hi);
      border-color: var(--line-light-strong);
    }
    .btn-light:hover {
      background: var(--ink-900);
      border-color: var(--ink-900);
      color: #fff;
      transform: translateY(-2px);
    }
    .btn:hover svg {
      transform: translateX(4px);
    }

    /* ===== 页面 Header 下图 / 欢迎词 ===== */
    .safety-hero {
      background: linear-gradient(135deg, #070A09 0%, #0C1210 100%);
      color: var(--text-on-dark-hi);
      position: relative;
      overflow: hidden;
      padding: 100px 0 90px;
    }
    .safety-hero::after {
      content: '';
      position: absolute;
      width: 600px;
      height: 600px;
      border: 1px solid rgba(198, 242, 78, 0.14);
      border-radius: 50%;
      top: -220px;
      right: -140px;
      box-shadow: 0 0 0 60px rgba(255,255,255,0.02), 0 0 0 120px rgba(255,255,255,0.01);
      pointer-events: none;
    }
    .safety-hero .container {
      position: relative;
      z-index: 2;
    }
    .safety-hero__content {
      max-width: 840px;
    }
    .safety-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      letter-spacing: 0.08em;
      color: var(--accent-signal);
      border: 1px solid rgba(198,242,78,0.3);
      background: rgba(198,242,78,0.08);
      padding: 8px 18px;
      border-radius: 100px;
      margin-bottom: 24px;
      font-weight: 600;
    }
    .safety-hero__title {
      font-size: clamp(36px, 6vw, 64px);
      line-height: 1.15;
      font-weight: 700;
      letter-spacing: -0.02em;
    }
    .safety-hero__title .outline-text {
      color: transparent;
      -webkit-text-stroke: 1.5px rgba(198,242,78,0.6);
    }
    .safety-hero__lead {
      font-size: 18px;
      line-height: 1.8;
      color: var(--text-on-dark-mid);
      margin: 28px 0 0;
      max-width: 660px;
      border-left: 3px solid var(--accent-signal);
      padding-left: 20px;
    }
    .safety-hero__badges {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 36px;
    }
    .badge-mini {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--ink-800);
      border: 1px solid var(--line-dark-strong);
      color: var(--text-on-dark-mid);
      font-size: 14px;
      padding: 8px 18px;
      border-radius: 100px;
      transition: border-color .3s, background .3s;
    }
    .badge-mini svg {
      width: 15px;
      height: 15px;
      color: var(--accent-signal);
    }
    .badge-mini:hover {
      border-color: rgba(198,242,78,0.45);
      background: rgba(198,242,78,0.07);
    }

    /* breadcrumb */
    .breadcrumb-wrap {
      background: var(--paper-200);
      padding: 14px 0;
      border-bottom: 1px solid var(--line-light);
    }
    .breadcrumb {
      list-style: none;
      display: flex;
      align-items: center;
      gap: 4px;
      font-size: 14px;
      color: var(--text-on-light-dim);
      flex-wrap: wrap;
    }
    .breadcrumb li + li::before {
      content: '>';
      margin: 0 8px;
      color: #BCC3BC;
    }
    .breadcrumb a {
      color: var(--text-on-light-dim);
      text-decoration: none;
    }
    .breadcrumb a:hover {
      color: var(--text-on-light-hi);
      text-decoration: underline;
    }

    /* ===== 板块标题 ===== */
    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .section-head__left {
      max-width: 700px;
    }
    .eyebrow {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--brand-secondary);
      letter-spacing: 0.14em;
      margin-bottom: 12px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -0.01em;
      color: var(--text-on-light-hi);
    }
    .section-desc {
      color: var(--text-on-light-mid);
      margin-top: 16px;
      max-width: 680px;
      font-size: 16px;
      line-height: 1.8;
    }
    .section-desc.light {
      color: var(--text-on-dark-mid);
    }
    .section-more {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 600;
      font-size: 15px;
      color: var(--text-on-light-hi);
      text-decoration: none;
      border-bottom: 2px solid var(--accent-signal);
      padding-bottom: 2px;
    }
    .section-more:hover {
      color: var(--brand-secondary);
    }
    .section-more svg {
      width: 17px;
      height: 17px;
      transition: transform .3s;
      stroke: currentColor;
    }
    .section-more:hover svg {
      transform: translateX(4px);
    }

    /* ===== 安全识别：四步 ===== */
    .verify-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .verify-item {
      background: #fff;
      border-radius: var(--radius-card);
      padding: 32px 24px;
      border: 1px solid var(--line-light);
      position: relative;
      transition: box-shadow .3s, transform .3s, border-color .3s;
    }
    .verify-item:hover {
      border-color: var(--brand-secondary);
      box-shadow: 0 18px 40px -16px rgba(0,0,0,0.2);
      transform: translateY(-4px);
    }
    .verify-num {
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 700;
      color: var(--ink-800);
      background: var(--paper-200);
      border-radius: 12px;
      margin-bottom: 24px;
      border: 1px solid var(--line-light);
      font-family: var(--font-en);
    }
    .verify-item h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 14px;
      line-height: 1.5;
    }
    .verify-item p {
      font-size: 15px;
      color: var(--text-on-light-mid);
      line-height: 1.7;
    }

    /* ===== 深色分隔条 ===== */
    .cta-strip {
      background-color: var(--ink-800);
      background-image: linear-gradient(90deg, rgba(198,242,78,0.05), transparent 40%);
      border-top: 1px solid var(--line-dark);
      border-bottom: 1px solid var(--line-dark);
      padding: 28px 0;
    }
    .cta-strip__inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
    }
    .cta-strip h3 {
      color: var(--text-on-dark-hi);
      font-size: 20px;
      font-weight: 600;
    }
    .cta-strip h3 span {
      color: var(--accent-signal);
    }
    .cta-strip .cta-strip__desc {
      color: var(--text-on-dark-dim);
      font-size: 14px;
      line-height: 1.5;
    }
    .cta-strip .btn {
      flex-shrink: 0;
    }

    /* ===== 风险特征 style ===== */
    .risk-scroll-panel {
      border-radius: var(--radius-card);
      background: #fff;
      border: 1px solid var(--line-light);
      padding: 18px 0;
    }
    .risk-row {
      display: grid;
      grid-template-columns: 44px 1fr 1.2fr;
      align-items: start;
      gap: 20px;
      padding: 20px 24px;
      border-bottom: 1px solid var(--line-light);
      transition: background-color .25s;
    }
    .risk-row:last-child {
      border-bottom: 0;
    }
    .risk-row:hover {
      background: #FAFBF7;
    }
    .risk-row__num {
      font-family: var(--font-en);
      color: var(--brand-secondary);
      font-size: 15px;
      font-weight: 700;
    }
    .risk-row__code {
      color: var(--text-on-light-hi);
      font-size: 16px;
      font-weight: 600;
      line-height: 1.5;
    }
    .risk-row__note {
      color: var(--text-on-light-mid);
      font-size: 14px;
      line-height: 1.7;
    }
    .risk-icon {
      display: inline-flex;
      margin-right: 8px;
      color: var(--brand-secondary);
      align-items: center;
    }
    .risk-icon svg {
      width: 18px;
      height: 18px;
    }

    /* ===== 双列核查区 ===== */
    .split-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 32px;
      align-items: stretch;
    }
    .split-card {
      background: var(--ink-800);
      border: 1px solid var(--line-dark-strong);
      border-radius: 20px;
      padding: 36px 32px;
      color: var(--text-on-dark-mid);
      background-image: radial-gradient(circle at 15% 20%, rgba(198,242,78,0.1), transparent 35%);
    }
    .split-card.light {
      background: #fff;
      border-color: var(--line-light);
      color: var(--text-on-light-mid);
      background-image: radial-gradient(circle at 15% 20%, rgba(47,122,110,0.05), transparent 35%);
    }
    .split-card__icon {
      width: 56px;
      height: 56px;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(198,242,78,0.12);
      color: var(--accent-signal);
      margin-bottom: 24px;
    }
    .split-card.light .split-card__icon {
      background: rgba(47,122,110,0.12);
      color: var(--brand-secondary);
    }
    .split-card__icon svg {
      width: 28px;
      height: 28px;
    }
    .split-card h3 {
      font-size: 22px;
      color: var(--text-on-dark-hi);
      margin-bottom: 18px;
      line-height: 1.4;
    }
    .split-card.light h3 {
      color: var(--text-on-light-hi);
    }
    .check-list {
      list-style: none;
      margin-top: 8px;
    }
    .check-list li {
      display: flex;
      gap: 12px;
      padding: 12px 0;
      border-top: 1px solid rgba(255,255,255,0.08);
      align-items: flex-start;
      line-height: 1.6;
    }
    .light .check-list li {
      border-top: 1px solid var(--line-light);
    }
    .check-list li:first-child {
      border-top: 0;
    }
    .check-list svg {
      width: 18px;
      height: 18px;
      flex-shrink: 0;
      margin-top: 4px;
      color: var(--accent-signal);
    }
    .light .check-list svg {
      color: var(--success);
    }

    /* ===== 流程 / 操作步骤 ===== */
    .step-row {
      display: grid;
      grid-template-columns: 1fr;
      max-width: 900px;
    }
    .step-cell {
      display: grid;
      grid-template-columns: 68px 1fr auto;
      gap: 24px;
      align-items: center;
      padding: 28px 0;
      border-bottom: 1px solid var(--line-light-strong);
      transition: padding-left 0.3s;
    }
    .step-cell:hover {
      padding-left: 8px;
    }
    .step-cell:last-child {
      border-bottom: none;
    }
    .step-cell__number {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(47,122,110,0.12);
      color: var(--brand-secondary);
      font-weight: 700;
      font-family: var(--font-en);
      font-size: 18px;
      border: 1px dashed var(--brand-secondary);
    }
    .step-cell h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-cell p {
      color: var(--text-on-light-mid);
      font-size: 15px;
      line-height: 1.7;
    }
    .step-cell__badge {
      text-align: right;
      flex-shrink: 0;
    }
    .flag-pill {
      display: inline-block;
      background: #FEF6E0;
      color: #85721B;
      padding: 6px 14px;
      border-radius: 100px;
      font-size: 13px;
      font-weight: 600;
      border: 1px solid #F0E3AF;
    }
    .flag-pill.green {
      background: #EFF9F2;
      color: var(--success);
      border-color: #CBE7D8;
    }

    /* ===== 桌面公告 / 状态 ===== */
    .status-bar-box {
      background: var(--paper-200);
      border-radius: var(--radius-card);
      padding: 32px;
      border: 1px solid var(--line-light);
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 28px;
      flex-wrap: wrap;
    }
    .status-bar-box .status-desc {
      flex: 1 1 340px;
      color: var(--text-on-light-mid);
    }
    .status-bar-box .status-desc b {
      color: var(--text-on-light-hi);
    }
    .status-time {
      font-family: var(--font-en);
      color: var(--text-on-light-dim);
      font-size: 13px;
      display: block;
      margin-bottom: 10px;
    }
    .status-live {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      background: #fff;
      border: 1px solid var(--line-light-strong);
      border-radius: 100px;
      font-weight: 600;
      font-size: 14px;
    }
    .status-live i {
      display: block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 0 4px rgba(63,164,124,0.15);
    }

    /* ===== FAQ 手风琴 ===== */
    .faq-list {
      border-top: 2px solid var(--line-light-strong);
    }
    .faq-item {
      border-bottom: 1px solid var(--line-light-strong);
    }
    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      padding: 18px 4px;
      cursor: pointer;
      list-style: none;
      font-weight: 600;
      color: var(--text-on-light-hi);
      font-size: 16px;
      transition: padding-left .3s;
      line-height: 1.5;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary:hover {
      padding-left: 8px;
      color: var(--brand-secondary);
    }
    .faq-item .faq-icon {
      position: relative;
      width: 28px;
      height: 28px;
      flex-shrink: 0;
      border-radius: 50%;
      border: 1px solid var(--line-light-strong);
      background: #fff;
      transition: transform 0.4s ease;
    }
    .faq-item .faq-icon::before,
    .faq-item .faq-icon::after {
      content: '';
      position: absolute;
      background: var(--text-on-light-mid);
      top: 50%;
      left: 50%;
      translate: -50% -50%;
      transition: background .3s;
    }
    .faq-item .faq-icon::before {
      width: 12px;
      height: 1.6px;
    }
    .faq-item .faq-icon::after {
      width: 1.6px;
      height: 12px;
    }
    .faq-item[open] .faq-icon {
      transform: rotate(45deg);
      border-color: var(--brand-secondary);
    }
    .faq-item[open] .faq-icon::before,
    .faq-item[open] .faq-icon::after {
      background: var(--brand-secondary);
    }
    .faq-answer {
      padding: 0 36px 24px 22px;
      color: var(--text-on-light-mid);
      border-left: 2px solid var(--brand-secondary);
      margin-left: 8px;
      line-height: 1.8;
      font-size: 15px;
    }
    .faq-answer p + p {
      margin-top: 8px;
    }

    /* ======= 本页额外模块：图示与联系混合 ======= */
    .concern-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .concern-card {
      border: 1px solid var(--line-light);
      background: #fff;
      border-radius: var(--radius-card);
      padding: 32px;
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }
    .concern-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 0;
      background: var(--accent-signal);
      transition: height 0.3s ease;
    }
    .concern-card:hover {
      box-shadow: 0 18px 40px -16px rgba(0,0,0,0.18);
      transform: translateY(-4px);
      border-color: var(--line-light-strong);
    }
    .concern-card:hover::after {
      height: 100%;
    }
    .concern-card .count {
      font-size: 48px;
      font-weight: 800;
      letter-spacing: -0.03em;
      font-family: var(--font-en);
      color: var(--paper-200);
      line-height: 1;
      margin-bottom: 18px;
      -webkit-text-stroke: 1px var(--brand-secondary);
      color: transparent;
    }
    .concern-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .concern-card p {
      color: var(--text-on-light-mid);
      font-size: 14px;
      line-height: 1.75;
    }

    /* 深色大CTA区域 */
    .final-cta {
      background-color: var(--ink-900);
      padding: 90px 0;
      background-image: linear-gradient(rgba(7,10,9,0.6), rgba(7,10,9,0.6)), url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      border-radius: 0;
    }
    .final-cta__inner {
      max-width: 820px;
      margin: 0 auto;
      text-align: center;
    }
    .final-cta__icon {
      width: 68px;
      height: 68px;
      border-radius: 22px;
      background: rgba(198,242,78,0.16);
      color: var(--accent-signal);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 28px;
      border: 1px solid rgba(198,242,78,0.3);
    }
    .final-cta__icon svg {
      width: 32px;
      height: 32px;
    }
    .final-cta__title {
      font-size: clamp(30px, 5vw, 46px);
      font-weight: 700;
      color: var(--text-on-dark-hi);
      letter-spacing: -0.01em;
      line-height: 1.25;
    }
    .final-cta__title span {
      color: var(--accent-signal);
    }
    .final-cta__sub {
      color: var(--text-on-dark-mid);
      font-size: 16px;
      line-height: 1.8;
      margin-top: 22px;
      max-width: 680px;
      margin-left: auto;
      margin-right: auto;
    }
    .final-cta__buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-top: 36px;
    }
    .final-cta__help {
      margin-top: 18px;
      color: var(--text-on-dark-dim);
      font-size: 14px;
    }
    .final-cta__help a {
      color: var(--accent-signal);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    /* 资源页脚 */
    .site-footer {
      background: var(--ink-900);
      color: var(--text-on-dark-mid);
      border-top: 1px solid var(--line-dark);
    }
    .site-footer a {
      color: var(--text-on-dark-mid);
      text-decoration: none;
    }
    .site-footer a:hover {
      color: var(--accent-signal);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.6fr;
      gap: 48px;
      padding: 72px 0 60px;
    }
    .footer-brand .brand + p {
      margin-top: 18px;
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-on-dark-mid);
      max-width: 340px;
    }
    .footer-cert {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      margin-top: 28px;
      background: rgba(255,255,255,0.03);
      border: 1px solid var(--line-dark);
      border-radius: 12px;
      padding: 14px 16px;
      color: var(--text-on-dark-dim);
      font-size: 13px;
      line-height: 1.6;
    }
    .footer-cert svg {
      width: 22px;
      height: 22px;
      color: var(--accent-signal);
      flex-shrink: 0;
      margin-top: 2px;
    }
    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-col h4, .footer-safe h4 {
      color: var(--text-on-dark-hi);
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .footer-col a {
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 4px 0;
    }
    .footer-col a::before {
      content: '';
      display: inline-block;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--line-dark-strong);
      transition: background .25s;
    }
    .footer-col a:hover::before {
      background: var(--accent-signal);
    }
    .footer-safe {
      background: rgba(198,242,78,0.04);
      border: 1px solid var(--line-dark-strong);
      border-radius: 16px;
      padding: 24px;
      height: fit-content;
    }
    .footer-safe h4 {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--accent-signal);
      margin-bottom: 14px;
    }
    .footer-safe h4 svg {
      width: 20px;
      height: 20px;
    }
    .footer-safe p {
      font-size: 13.5px;
      line-height: 1.8;
      color: var(--text-on-dark-mid);
    }
    .footer-bottom {
      border-top: 1px solid var(--line-dark);
      padding: 24px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: var(--text-on-dark-dim);
      font-size: 13.5px;
    }
    .footer-bottom b {
      color: var(--text-on-dark-mid);
      font-weight: 400;
    }

    /* ===== 响应式 ===== */

    @media (max-width: 1024px) {
      .verify-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .concern-grid {
        grid-template-columns: 1fr;
      }
      .split-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }
      .header-meta__text {
        display: none;
      }
      .channel-nav {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
      }
      .channel-nav::-webkit-scrollbar {
        display: none;
      }
      .channel-link {
        padding: 12px 12px;
      }
      .channel-link::after {
        left: 12px;
      }
      .container {
        padding: 0 20px;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 64px 0;
      }
      .section-tight {
        padding: 42px 0;
      }
      .section-head {
        flex-direction: column;
      }
      .safety-hero {
        padding: 64px 0;
      }
      .brand__name {
        font-size: 18px;
      }
      .header-top__right {
        display: flex;
        align-items: center;
        gap: 8px;
      }
      .burger-btn {
        display: flex;
      }
      .desktop-nav {
        display: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
      .verify-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        padding: 48px 0 32px;
      }
      .final-cta {
        padding: 56px 0;
      }
      .brand__mark {
        width: 30px;
      }
      .brand__mark svg {
        width: 28px;
        height: 28px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }
      .section {
        padding: 48px 0;
      }
      .header-meta {
        display: none;
      }
      .header-top {
        padding: 12px 0;
      }
      .brand__name {
        font-size: 16px;
      }
      .btn {
        width: 100%;
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .step-cell {
        grid-template-columns: 52px 1fr;
        gap: 16px;
      }
      .step-cell__badge {
        grid-column: 2;
        text-align: left;
      }
      .risk-row {
        grid-template-columns: 32px 1fr;
        gap: 8px 12px;
      }
      .risk-row__note {
        grid-column: 2;
      }
      .status-bar-box {
        padding: 24px;
        flex-wrap: wrap;
      }
      .verify-item {
        padding: 26px 20px;
      }
      .split-card {
        padding: 28px 24px;
      }
      .breadcrumb li {
        font-size: 13px;
      }
      .final-cta__buttons .btn {
        width: auto;
        padding: 0 24px;
      }
    }

    /* 滚动显现 */
    .reveal {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity .4s ease, transform .4s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

/* roulang page: category2 */
:root{
      --ink-900:#070A09;
      --ink-800:#0C1210;
      --ink-700:#121A17;
      --paper-100:#F5F6F1;
      --paper-200:#ECEFE7;
      --line-dark:rgba(255,255,255,0.10);
      --line-dark-strong:rgba(255,255,255,0.18);
      --line-light:rgba(6,10,9,0.08);
      --line-light-strong:rgba(6,10,9,0.16);
      --text-on-dark-hi:#FFFFFF;
      --text-on-dark-mid:rgba(255,255,255,0.72);
      --text-on-dark-dim:rgba(255,255,255,0.52);
      --text-on-light-hi:#101411;
      --text-on-light-mid:#3C443F;
      --text-on-light-dim:#6A736D;
      --accent-signal:#C6F24E;
      --accent-signal-strong:#D7FB66;
      --brand-secondary:#2F7A6E;
      --danger:#D96C4A;
      --success:#3FA47C;
      --radius-card:16px;
      --radius-btn:999px;
      --radius-tag:8px;
      --shadow-card:0 1px 0 rgba(0,0,0,0.04);
      --shadow-hover:0 18px 40px -16px rgba(0,0,0,0.25);
      --ease: cubic-bezier(.22,.61,.36,1);
      --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
      --font-en:"Inter","Segoe UI",sans-serif;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font-cn);
      font-size:16px;
      line-height:1.8;
      background:var(--paper-100);
      color:var(--text-on-light-hi);
      -webkit-font-smoothing:antialiased;
    }
    h1,h2,h3,h4,p,ul,ol,figure{margin:0}
    ul,ol{padding:0}
    li{list-style:none}
    a{
      color:inherit;
      text-decoration:none;
      background-color:transparent;
    }
    img{
      max-width:100%;
      border-style:none;
      display:block;
    }
    button{
      font-family:inherit;
      border:0;
      background:none;
      cursor:pointer;
      color:inherit;
      padding:0;
    }
    :focus-visible{
      outline:2px solid var(--accent-signal);
      outline-offset:2px;
      border-radius:4px;
    }

    .container{
      width:min(1280px, calc(100% - 48px));
      margin-inline:auto;
    }
    .section{padding-block:104px}
    .section-soft{background:var(--paper-100)}
    .section-paper{background:var(--paper-100)}
    .section-white{background:#FFFFFF}
    .section-ink{background:var(--ink-900);color:#fff}
    .section-ink .section-lead,
    .section-ink .text-dim{color:var(--text-on-dark-mid)}

    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-size:13px;
      font-weight:600;
      letter-spacing:.08em;
      color:var(--accent-signal);
      background:rgba(198,242,78,.1);
      border:1px solid rgba(198,242,78,.24);
      padding:6px 14px;
      border-radius:var(--radius-tag);
    }
    .section-ink .eyebrow{
      color:var(--accent-signal);
      background:rgba(198,242,78,.12);
    }
    .section-ink .eyebrow:hover{color:var(--accent-signal-strong)}
    .section-title{
      margin-top:18px;
      font-size:clamp(28px,3.4vw,42px);
      line-height:1.18;
      letter-spacing:-.02em;
      font-weight:700;
      color:var(--text-on-light-hi);
    }
    .section-ink .section-title{color:#fff}
    .section-lead{
      margin-top:14px;
      max-width:680px;
      color:var(--text-on-light-dim);
      font-size:16px;
      line-height:1.8;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:48px;
      align-items:flex-end;
      margin-bottom:52px;
    }
    @media (max-width:768px){
      .section-head{flex-direction:column;gap:18px;align-items:flex-start;margin-bottom:36px}
    }

    /* ---------- 通用按钮 ---------- */
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 24px;
      border-radius:var(--radius-btn);
      font-weight:600;
      font-size:15px;
      line-height:1;
      vertical-align:middle;
      transition:border-color .25s, background-color .25s, transform .3s, box-shadow .3s, color .25s;
      will-change:transform;
    }
    .btn svg{width:17px;height:17px;stroke-width:2;flex:none}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn-accent{background:var(--accent-signal);color:var(--ink-800)}
    .btn-accent:hover{background:var(--accent-signal-strong);box-shadow:0 10px 28px -12px rgba(198,242,78,.6)}
    .btn-ghost-dark{
      background:transparent;
      color:#fff;
      border:1px solid rgba(255,255,255,.26);
    }
    .btn-ghost-dark:hover{border-color:var(--accent-signal);color:var(--accent-signal)}
    .btn-plain{
      display:inline-flex;
      align-items:center;
      gap:6px;
      font-weight:600;
      color:var(--text-on-light-hi);
      border-bottom:1px solid currentColor;
      min-height:36px;
    }
    .btn-plain svg{width:15px;height:15px;transition:transform .3s}
    .btn-plain:hover svg{transform:translateX(4px)}
    .btn-sm{min-height:36px;padding:0 16px;font-size:13px}
    .link-arrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-weight:600;
      color:var(--text-on-light-hi);
      transition:color .2s;
    }
    .link-arrow svg{width:16px;height:16px;transition:transform .3s}
    .link-arrow:hover{color:var(--brand-secondary)}
    .link-arrow:hover svg{transform:translateX(4px)}

    /* ---------- Header ---------- */
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      background:var(--ink-900);
      color:#fff;
      box-shadow:none;
      border-bottom:1px solid var(--line-dark);
      transition:box-shadow .3s;
    }
    .site-header.is-scrolled{
      box-shadow:0 14px 40px -30px rgba(0,0,0,.8);
      border-bottom-color:var(--line-dark-strong);
    }
    .header-main{
      display:flex;
      align-items:center;
      gap:20px;
      padding:14px 0;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      line-height:1;
      color:#fff;
      transition:color .2s;
    }
    .brand__mark{
      width:38px;
      height:38px;
      display:grid;
      place-items:center;
      background:var(--accent-signal);
      color:var(--ink-900);
      border-radius:12px;
      flex:none;
    }
    .brand__mark svg{width:20px;height:20px}
    .brand__name{
      font-size:18px;
      font-weight:600;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    .brand:hover .brand__name{color:var(--accent-signal-strong)}

    .header-meta{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:18px;
    }
    .header-safe-note{
      display:flex;
      align-items:center;
      gap:7px;
      color:var(--text-on-dark-dim);
      font-size:12px;
      letter-spacing:.02em;
    }
    .header-safe-note svg{width:14px;height:14px;color:var(--accent-signal)}
    .header-lang{
      font-size:13px;
      color:var(--text-on-dark-dim);
      border:1px solid var(--line-dark);
      border-radius:var(--radius-btn);
      padding:4px 12px;
    }
    .header-home-btn{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:0 14px;
      border:1px solid var(--line-dark-strong);
      border-radius:var(--radius-btn);
      color:rgba(255,255,255,.92);
      font-size:13px;
      font-weight:600;
      transition:border-color .25s,color .25s,background .25s;
    }
    .header-home-btn:hover{border-color:var(--accent-signal);color:var(--accent-signal)}

    .channel-wrap{border-top:1px solid var(--line-dark)}
    .channel-nav{
      display:flex;
      align-items:center;
      gap:2px;
      flex-wrap:nowrap;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-link{
      position:relative;
      flex:none;
      padding:13px 18px 13px 0;
      margin-right:24px;
      color:rgba(255,255,255,.82);
      font-size:15px;
      font-weight:600;
      line-height:1.2;
      transition:color .2s;
    }
    .channel-link::after{
      content:"";
      position:absolute;
      left:0;
      bottom:0;
      width:20px;
      height:2px;
      border-radius:2px;
      background:var(--accent-signal);
      transform:scaleX(0);
      transform-origin:left;
      transition:transform .25s var(--ease),width .25s var(--ease);
    }
    .channel-link:hover,
    .channel-link.active{
      color:var(--accent-signal);
    }
    .channel-link:hover::after{
      transform:scaleX(1);
    }
    .channel-link.active::after{
      width:28px;
      transform:scaleX(1);
    }
    .nav-toggle{
      display:none;
      width:38px;
      height:38px;
      border:1px solid var(--line-dark-strong);
      border-radius:10px;
      color:#fff;
      align-items:center;
      justify-content:center;
      transition:border-color .25s,color .25s;
    }
    .nav-toggle:hover{border-color:var(--accent-signal);color:var(--accent-signal)}
    .nav-toggle svg{width:18px;height:18px}

    @media (max-width:768px){
      .header-safe-note,.header-lang,.header-home-btn{display:none}
      .nav-toggle{display:inline-flex;margin-left:auto}
      .channel-nav{
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:0;
        padding:6px 0 12px;
      }
      .channel-nav.open{display:flex}
      .channel-link{
        margin:0;
        padding:14px 8px;
        border-bottom:1px solid rgba(255,255,255,.08);
      }
      .channel-link::after{display:none}
      .channel-link.active{color:var(--accent-signal);padding-left:14px;border-left:2px solid var(--accent-signal)}
    }

    /* ---------- Page Hero ---------- */
    .page-hero{
      position:relative;
      color:#fff;
      background:
        linear-gradient(90deg, rgba(7,10,9,.92) 0%, rgba(7,10,9,.72) 55%, rgba(7,10,9,.55) 100%),
        url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
      border-bottom:1px solid var(--line-dark);
      overflow:hidden;
    }
    .page-hero::after{
      content:"";
      position:absolute;
      right:-160px;
      top:80px;
      width:420px;
      height:420px;
      background:radial-gradient(circle, rgba(198,242,78,.1) 0%, transparent 64%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:68px;
      align-items:center;
      padding:74px 0 52px;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      color:var(--text-on-dark-dim);
      font-size:13px;
      margin-bottom:22px;
    }
    .breadcrumb a{transition:color .2s}
    .breadcrumb a:hover{color:var(--accent-signal)}
    .breadcrumb span:nth-child(2),.breadcrumb span:nth-child(4){opacity:.45}
    .hero-kicker{
      color:var(--accent-signal);
      font-size:14px;
      font-weight:600;
      letter-spacing:.10em;
      display:inline-flex;
      align-items:center;
      gap:10px;
    }
    .hero-kicker::before{
      content:"";
      width:22px;
      height:2px;
      background:var(--accent-signal);
      border-radius:2px;
    }
    .hero-title{
      margin-top:20px;
      margin-bottom:18px;
      font-size:clamp(38px,5.6vw,72px);
      font-weight:700;
      line-height:1.08;
      letter-spacing:-.03em;
      text-wrap:balance;
    }
    .hero-title .hero-title-mark{
      color:var(--accent-signal);
    }
    .hero-sub{
      max-width:620px;
      color:var(--text-on-dark-mid);
      font-size:17px;
      line-height:1.85;
    }
    .hero-actions{
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      margin-top:34px;
    }
    .hero-strip{
      border-top:1px solid var(--line-dark-strong);
      display:grid;
      grid-template-columns:repeat(3,1fr);
      margin-top:32px;
    }
    .hero-strip__item{
      display:flex;
      align-items:center;
      gap:12px;
      padding:20px 18px 20px 0;
      border-right:1px solid var(--line-dark);
      color:var(--text-on-dark-mid);
      font-size:13px;
      line-height:1.55;
    }
    .hero-strip__item svg{
      width:21px;
      height:21px;
      flex:none;
      color:var(--accent-signal);
    }
    .hero-strip__item + .hero-strip__item{padding-left:18px}
    .hero-strip__item:last-child{border-right:0}

    .hero-aside{position:relative}
    .hero-card{
      position:relative;
      z-index:2;
      border:1px solid var(--line-dark-strong);
      background:rgba(12,18,16,.7);
      backdrop-filter:none;
      border-radius:20px;
      overflow:hidden;
      box-shadow:0 30px 70px -36px rgba(0,0,0,.72);
    }
    .hero-card__media{
      aspect-ratio:5 / 3.7;
      background:var(--ink-800);
    }
    .hero-card__media img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .hero-card__body{
      padding:20px 22px 22px;
      border-top:1px solid var(--line-dark);
    }
    .hero-card .card-line{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      font-size:14px;
      padding:8px 0;
      color:var(--text-on-dark-mid);
      border-bottom:1px dashed rgba(255,255,255,.09);
    }
    .hero-card .card-line:last-child{border-bottom:0}
    .hero-card .card-line b{
      color:#fff;
      font-weight:600;
      font-family:var(--font-en);
    }
    .hero-card-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      background:rgba(198,242,78,.12);
      border:1px solid rgba(198,242,78,.3);
      color:var(--accent-signal);
      border-radius:var(--radius-tag);
      padding:4px 10px;
      font-size:12px;
      font-weight:600;
      margin-top:2px;
    }

    /* ---------- 栏目意义 / 三个观察点 ---------- */
    .purpose-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:1px;
      background:var(--line-light);
      border:1px solid var(--line-light);
      border-radius:var(--radius-card);
      overflow:hidden;
    }
    .purpose-item{
      background:#fff;
      padding:32px 30px;
      min-height:190px;
      transition:background .25s, box-shadow .3s;
    }
    .purpose-item:hover{background:#fff;box-shadow:inset 0 0 0 1px rgba(47,122,110,.16)}
    .purpose-icon{
      width:42px;
      height:42px;
      border-radius:12px;
      background:rgba(47,122,110,.13);
      display:grid;
      place-items:center;
      color:var(--brand-secondary);
      margin-bottom:16px;
    }
    .purpose-icon svg{width:21px;height:21px;stroke-width:1.6}
    .purpose-item h3{
      font-size:18px;
      font-weight:600;
      color:var(--text-on-light-hi);
      margin-bottom:8px;
    }
    .purpose-item p{
      font-size:14px;
      color:var(--text-on-light-dim);
      line-height:1.75;
    }
    .section-top-space{padding-top:104px}
    .section-bottom-space{padding-bottom:104px}

    /* ---------- 深色区块：为什么关注版本 ---------- */
    .impact-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:56px;
      align-items:center;
    }
    .impact-list{
      margin-top:8px;
    }
    .impact-row{
      display:flex;
      gap:18px;
      padding:22px 0;
      border-bottom:1px solid var(--line-dark);
    }
    .impact-row:first-child{border-top:1px solid var(--line-dark)}
    .impact-num{
      font-family:var(--font-en);
      font-size:13px;
      color:var(--accent-signal);
      border:1px solid rgba(198,242,78,.3);
      border-radius:50%;
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      flex:none;
      margin-top:4px;
    }
    .impact-row h3{
      font-size:18px;
      font-weight:600;
      color:#fff;
      margin-bottom:6px;
    }
    .impact-row p{
      font-size:14px;
      color:var(--text-on-dark-dim);
      line-height:1.75;
    }

    /* ---------- 获取更新通知 ---------- */
    .notify-steps{
      position:relative;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:0;
      margin-top:8px;
    }
    .notify-step{
      position:relative;
      padding:4px 32px 4px 0;
      counter-increment:step;
    }
    .notify-step + .notify-step{padding-left:32px;border-left:1px dashed var(--line-light-strong)}
    .notify-step__num{
      font-family:var(--font-en);
      font-size:13px;
      font-weight:700;
      color:var(--brand-secondary);
      border:1px solid rgba(47,122,110,.4);
      background:rgba(47,122,110,.08);
      border-radius:50%;
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      margin-bottom:16px;
    }
    .notify-step h3{
      font-size:17px;
      font-weight:600;
      margin-bottom:8px;
      color:var(--text-on-light-hi);
    }
    .notify-step p{
      font-size:14px;
      color:var(--text-on-light-dim);
      line-height:1.75;
    }
    .tips-note{
      display:flex;
      align-items:flex-start;
      gap:12px;
      margin-top:44px;
      padding:16px 20px;
      background:var(--paper-200);
      border-radius:12px;
      color:var(--text-on-light-mid);
      font-size:14px;
      line-height:1.75;
    }
    .tips-note svg{width:18px;height:18px;flex:none;color:var(--brand-secondary);margin-top:4px}

    /* ---------- 近期版本记录 ---------- */
    .subsection-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:32px;
      margin-bottom:44px;
    }
    @media (max-width:768px){.subsection-head{flex-direction:column;gap:16px;align-items:flex-start}}
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      background:var(--paper-200);
      border:1px solid var(--line-light);
      border-radius:var(--radius-btn);
      color:var(--text-on-light-dim);
      padding:7px 14px;
      font-size:13px;
      font-weight:600;
      white-space:nowrap;
    }
    .status-pill i{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 4px rgba(63,164,124,.18);
    }
    .release-list{
      border-top:1px solid var(--line-light-strong);
    }
    .release{
      display:grid;
      grid-template-columns:142px minmax(0,1fr) auto;
      gap:36px;
      padding:28px 0;
      border-bottom:1px solid var(--line-light);
      transition:background .25s;
    }
    .release:hover{background:#FAFBF7;box-shadow:inset 2px 0 0 var(--brand-secondary)}
    .release__date{
      color:var(--text-on-light-dim);
      font-size:14px;
      padding-top:5px;
      font-family:var(--font-en);
      letter-spacing:-.01em;
    }
    .release__num{
      font-family:var(--font-en);
      font-size:14px;
      font-weight:700;
      color:var(--ink-900);
      background:var(--paper-200);
      display:inline-block;
      border-radius:6px;
      padding:4px 10px;
      margin-bottom:10px;
      letter-spacing:.02em;
    }
    .release__title{
      font-size:19px;
      font-weight:600;
      margin-bottom:8px;
    }
    .release__desc{
      color:var(--text-on-light-mid);
      font-size:15px;
      line-height:1.8;
    }
    .release__badge{
      align-self:start;
      background:rgba(47,122,110,.1);
      color:var(--brand-secondary);
      border-radius:var(--radius-btn);
      border:1px solid rgba(47,122,110,.18);
      font-size:12px;
      font-weight:600;
      padding:4px 12px;
      white-space:nowrap;
      margin-top:4px;
    }

    /* ---------- 版本核对 ---------- */
    .verify-layout{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:58px;
      align-items:center;
    }
    .verify-media{
      position:relative;
      border-radius:20px;
      overflow:hidden;
      border:1px solid var(--line-dark);
      aspect-ratio:4/3.2;
      box-shadow:0 22px 50px -30px rgba(0,0,0,.75);
    }
    .verify-media img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .verify-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(7,10,9,0) 40%, rgba(7,10,9,.3) 100%);
      pointer-events:none;
    }
    .verify-list{
      margin-top:14px;
    }
    .verify-list li{
      position:relative;
      padding:13px 0 13px 42px;
      border-bottom:1px solid var(--line-dark);
      color:var(--text-on-dark-mid);
      font-size:15px;
      line-height:1.75;
    }
    .verify-list li:last-child{border-bottom:0}
    .verify-list li::before{
      content:counter(li);
      counter-increment:li;
      position:absolute;
      left:0;
      top:11px;
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      font-size:12px;
      font-weight:700;
      font-family:var(--font-en);
      color:var(--accent-signal);
      border:1px solid rgba(198,242,78,.45);
    }
    .verify-list{counter-reset:li}
    .verify-copy strong{color:#fff;font-weight:600}
    .check-alert{
      display:flex;
      align-items:flex-start;
      gap:12px;
      margin-top:22px;
      padding:14px 18px;
      background:rgba(217,108,74,.1);
      border:1px solid rgba(217,108,74,.24);
      border-radius:12px;
      color:rgba(255,255,255,.9);
      font-size:14px;
      line-height:1.7;
    }
    .check-alert svg{width:18px;height:18px;flex:none;color:var(--danger);margin-top:4px}

    /* ---------- FAQ ---------- */
    .faq-wrap{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:64px;
    }
    .faq-wrap-left .section-title{margin-top:16px}
    .faq-help{
      display:flex;
      align-items:flex-start;
      gap:12px;
      margin-top:28px;
      padding:16px 18px;
      background:var(--paper-200);
      border-radius:12px;
      color:var(--text-on-light-dim);
      font-size:14px;
    }
    .faq-help svg{width:18px;height:18px;color:var(--brand-secondary);flex:none;margin-top:4px}
    .faq-list{border-top:1px solid var(--line-light-strong)}
    .faq-row{border-bottom:1px solid var(--line-light-strong)}
    .faq-q{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      text-align:left;
      padding:18px 0;
      min-height:56px;
    }
    .faq-q__text{font-size:16px;font-weight:600;color:var(--text-on-light-hi)}
    .faq-icon{
      flex:none;
      width:28px;
      height:28px;
      border:1px solid var(--line-light-strong);
      border-radius:50%;
      position:relative;
      transition:border-color .25s,background .25s,transform .3s;
    }
    .faq-icon::before,.faq-icon::after{
      content:"";
      position:absolute;
      top:50%;
      left:50%;
      transform:translate(-50%,-50%);
      width:11px;
      height:1.6px;
      background:var(--text-on-light-hi);
      transition:background .2s;
    }
    .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
    .faq-row.open .faq-icon{
      border-color:var(--brand-secondary);
      background:rgba(47,122,110,.06);
      transform:rotate(45deg);
    }
    .faq-q:hover .faq-q__text{color:var(--brand-secondary)}
    .faq-a{
      max-height:0;
      overflow:hidden;
      visibility:hidden;
      transition:max-height .45s var(--ease), visibility .45s;
    }
    .faq-row.open .faq-a{
      visibility:visible;
    }
    .faq-answer{
      border-left:2px solid var(--brand-secondary);
      margin-left:4px;
      padding:0 22px 24px;
      color:var(--text-on-light-mid);
      font-size:15px;
      line-height:1.8;
      max-width:720px;
    }
    .faq-answer + .faq-answer{margin-top:10px}

    /* ---------- CTA ---------- */
    .cta-panel{
      position:relative;
      overflow:hidden;
      text-align:center;
      padding:88px 48px;
      background:
        linear-gradient(100deg, rgba(7,10,9,.9), rgba(12,18,16,.78)),
        url('/assets/images/backpic/back-3.png') center / cover no-repeat;
      border-radius:24px;
      color:#fff;
      box-shadow:0 30px 80px -46px rgba(0,0,0,.8);
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:-100px;
      transform:translateX(-50%);
      width:420px;
      height:220px;
      background:radial-gradient(ellipse, rgba(198,242,78,.14), transparent 68%);
      pointer-events:none;
    }
    .cta-panel h2{
      margin:22px auto 14px;
      max-width:680px;
      font-size:clamp(28px,4vw,42px);
      line-height:1.2;
      letter-spacing:-.02em;
      font-weight:700;
    }
    .cta-panel p{
      margin:0 auto;
      max-width:620px;
      color:var(--text-on-dark-mid);
      font-size:16px;
      line-height:1.8;
    }
    .cta-actions{
      margin-top:34px;
      display:flex;
      justify-content:center;
      gap:14px;
      flex-wrap:wrap;
      position:relative;
      z-index:2;
    }
    .cta-sec{padding-top:12px}

    /* ---------- Footer ---------- */
    .site-footer{
      background:var(--ink-900);
      color:var(--text-on-dark-mid);
      padding:80px 0 0;
      border-top:1px solid var(--line-dark);
    }
    .site-footer .container{width:min(1280px, calc(100% - 48px));margin-inline:auto}
    .footer-grid{
      display:grid;
      grid-template-columns:1.22fr .72fr .72fr 1fr;
      gap:48px;
      padding-bottom:54px;
      border-bottom:1px solid var(--line-dark);
    }
    .footer-brand p{
      margin-top:16px;
      max-width:340px;
      color:var(--text-on-dark-dim);
      font-size:14px;
      line-height:1.8;
    }
    .footer-brand .brand{margin-bottom:4px}
    .footer-cert{
      display:flex;
      align-items:flex-start;
      gap:8px;
      margin-top:18px;
      background:rgba(198,242,78,.05);
      border:1px solid var(--line-dark);
      border-radius:10px;
      padding:10px 12px;
      font-size:12px;
      color:var(--text-on-dark-dim);
      line-height:1.6;
    }
    .footer-cert svg{
      width:16px;
      height:16px;
      flex:none;
      color:var(--accent-signal);
      margin-top:2px;
    }
    .footer-col h4{
      color:rgba(255,255,255,.95);
      font-size:15px;
      font-weight:600;
      margin-bottom:16px;
      letter-spacing:.02em;
    }
    .footer-col a{
      display:block;
      margin-bottom:7px;
      color:var(--text-on-dark-dim);
      font-size:14px;
      line-height:1.7;
      transition:color .2s;
    }
    .footer-col a:hover{color:var(--accent-signal)}
    .footer-safe{
      background:var(--ink-800);
      border:1px solid var(--line-dark-strong);
      border-radius:14px;
      padding:18px;
    }
    .footer-safe h4{
      display:flex;
      align-items:center;
      gap:8px;
      color:#fff;
      font-size:14px;
      margin-bottom:10px;
    }
    .footer-safe h4 svg{width:17px;height:17px;color:var(--danger)}
    .footer-safe p{
      font-size:13px;
      line-height:1.8;
      color:var(--text-on-dark-dim);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding:22px 0 28px;
      color:rgba(255,255,255,.42);
      font-size:13px;
    }
    .footer-bottom b{color:rgba(255,255,255,.72);font-weight:600}

    /* ---------- 响应式 ---------- */
    @media (max-width:1024px){
      .section{padding-block:80px}
      .hero-grid{gap:36px}
      .purpose-grid{grid-template-columns:repeat(2,1fr)}
      .purpose-item:nth-child(3){grid-column:1/-1}
      .impact-wrap,.verify-layout,.faq-wrap{grid-template-columns:1fr;gap:40px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
      .release{grid-template-columns:120px 1fr auto;gap:20px}
    }
    @media (max-width:768px){
      .container{width:min(1280px, calc(100% - 32px))}
      .section{padding-block:64px}
      .hero-grid{grid-template-columns:1fr;padding:64px 0 34px;gap:26px}
      .hero-strip{grid-template-columns:1fr;gap:0}
      .hero-strip__item{border-right:0;border-bottom:1px solid var(--line-dark);padding:20px 0}
      .hero-strip__item:last-child{border-bottom:0}
      .hero-strip__item + .hero-strip__item{padding-left:0;padding-right:0}
      .notify-steps{grid-template-columns:1fr;gap:28px}
      .notify-step + .notify-step{padding-left:0;border-left:0;padding-top:24px}
      .release{grid-template-columns:1fr;gap:10px;padding:22px 0}
      .release__badge{align-self:start;justify-self:start}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
      .cta-panel{padding:64px 24px}
      .cta-actions .btn{flex:1 1 auto;min-width:calc(50% - 10px)}
    }
    @media (max-width:520px){
      .purpose-grid{grid-template-columns:1fr}
      .purpose-item:nth-child(n){grid-column:auto}
      .hero-actions .btn{width:100%}
      .cta-actions .btn{width:100%;min-width:0}
      .brand__name{font-size:17px}
    }
    @media (prefers-reduced-motion: reduce){
      *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
    }