/* roulang page: index */
:root{
  --ink:#101416;
  --ink-soft:#161b1e;
  --paper:#F7F5F2;
  --card:#FFFFFF;
  --signal:#F4511E;
  --signal-dark:#D84315;
  --gold:#E9B949;
  --body-text:#252B2E;
  --muted-text:#5d666b;
  --line:#e8dfd7;
  --line-dark:#2b3135;
  --radius-lg:14px;
  --radius-md:9px;
  --radius-sm:5px;
  --shadow-sm:0 6px 18px rgba(16,20,22,.06);
  --shadow-md:0 12px 30px rgba(16,20,22,.10);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--body-text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 22px}
.grid-container{max-width:1280px}

.section{
  padding:92px 0;
}
.section-header{
  margin-bottom:42px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:30px;
}
.section-header-bd{
  max-width:780px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--signal);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--signal);
  display:inline-block;
}
.section-header h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.35;
  color:var(--ink);
  font-weight:700;
  letter-spacing:-.01em;
}
.section-header .desc{
  color:var(--muted-text);
  margin-top:14px;
  max-width:640px;
  font-size:15px;
}
.header-line{
  width:42px;height:3px;background:var(--gold);margin:16px 0 0;
  border-radius:99px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:6px;
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  border:1px solid transparent;
  transition:all .18s ease;
  white-space:nowrap;
  line-height:1;
}
.btn-primary{
  background:var(--signal);
  color:#fff;
  border-color:var(--signal);
}
.btn-primary:hover{background:var(--signal-dark);border-color:var(--signal-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.38);
}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-light{
  background:#fff;
  color:var(--ink);
  border-color:#fff;
}
.btn-light:hover{background:var(--paper);border-color:var(--paper)}
.btn:focus-visible{
  outline:3px solid rgba(244,81,30,.32);
  outline-offset:2px;
}
.btn svg,.btn i{margin-right:2px}

/* 吸顶导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(16,20,22,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav-main{
  height:66px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:11px;
  color:#fff;
  flex:none;
}
.logo-glyph{
  width:35px;
  height:35px;
  border-radius:8px;
  background:linear-gradient(135deg,var(--signal),var(--gold));
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  color:#101416;
  font-size:17px;
  box-shadow:0 4px 12px rgba(244,81,30,.25);
}
.brand-text{
  font-weight:700;
  font-size:20px;
  letter-spacing:.01em;
  line-height:1.2;
}
.brand-text em{
  font-style:normal;
  color:var(--gold);
  font-size:.72em;
  vertical-align:0.05em;
  margin-left:5px;
  font-weight:600;
}
.nav-tools{
  display:flex;
  align-items:center;
  gap:18px;
}
.header-search{
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:999px;
  height:38px;
  padding:0 15px;
  gap:8px;
  width:240px;
  transition:border-color .2s;
}
.header-search:focus-within{border-color:var(--gold)}
.header-search i{color:var(--gold);font-size:13px}
.header-search input{
  background:transparent;
  border:none;
  outline:none;
  color:#fff;
  font-size:14px;
  width:100%;
}
.header-search input::placeholder{color:rgba(255,255,255,.5)}
.nav-btn{
  height:38px;
  padding:0 18px;
  font-size:14px;
  border-radius:999px;
  background:var(--signal);
  color:#fff;
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-weight:600;
  transition:background .2s,transform .2s;
}
.nav-btn:hover{background:var(--signal-dark)}
.menu-burger{
  display:none;
  width:40px;
  height:40px;
  background:transparent;
  border:1px solid rgba(255,255,255,.2);
  border-radius:6px;
  color:#fff;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  font-size:19px;
}
.menu-burger:focus-visible{outline:3px solid rgba(255,255,255,.4)}

.channel-bar{
  background:rgba(11,14,16,.55);
  border-top:1px solid rgba(255,255,255,.04);
}
.channel-bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:50px;
}
.channel-menu{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-menu::-webkit-scrollbar{display:none}
.channel-menu a{
  color:rgba(255,255,255,.75);
  font-size:14px;
  padding:6px 18px;
  border-radius:999px;
  transition:all .18s;
  white-space:nowrap;
}
.channel-menu a:hover{color:#fff;background:rgba(255,255,255,.08)}
.channel-menu a.active{
  background:rgba(244,81,30,.14);
  color:#fff;
  box-shadow:inset 0 0 0 1px rgba(244,81,30,.32);
}
.channel-tag{
  color:var(--gold);
  font-size:13px;
  font-weight:600;
  background:rgba(233,185,73,.1);
  border:1px solid rgba(233,185,73,.2);
  padding:4px 14px;
  border-radius:999px;
  white-space:nowrap;
}

@media (max-width:1023px){
  .header-search{width:auto;flex:1;max-width:230px}
  .channel-bar{
    max-height:0;
    overflow:hidden;
    transition:max-height .25s ease;
  }
  .site-header.mobile-open .channel-bar{
    max-height:420px;
    border-top:1px solid rgba(255,255,255,.06);
  }
  .channel-bar-inner{
    height:auto;
    flex-direction:column;
    align-items:flex-start;
    padding:18px 22px 22px;
    gap:14px;
    max-width:100%;
  }
  .channel-menu{
    flex-direction:column;
    align-items:stretch;
    width:100%;
    gap:6px;
  }
  .channel-menu a{
    padding:12px 14px;
    border-radius:8px;
  }
  .channel-tag{margin-left:4px}
  .menu-burger{display:inline-flex}
  .nav-tools .desktop-label{display:none}
}

/* Hero */
.hero{
  background:var(--ink);
  color:#fff;
  overflow:hidden;
  position:relative;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(circle at 78% 28%,rgba(244,81,30,.18),transparent 40%),
    radial-gradient(circle at 16% 70%,rgba(233,185,73,.08),transparent 34%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  min-height:610px;
  display:flex;
  align-items:center;
  padding-top:50px;
  padding-bottom:70px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(233,185,73,.12);
  border:1px solid rgba(233,185,73,.3);
  color:var(--gold);
  font-size:12px;
  padding:5px 13px;
  border-radius:999px;
  font-weight:600;
  letter-spacing:.05em;
  margin-bottom:24px;
}
.hero h1{
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.25;
  letter-spacing:-.015em;
  font-weight:800;
  color:#fff;
  margin-bottom:20px;
}
.hero h1 .txt-line{
  display:block;
  color:var(--gold);
}
.hero-lead{
  color:rgba(255,255,255,.72);
  font-size:17px;
  max-width:560px;
  line-height:1.8;
  margin-bottom:32px;
}
.hero-ctas{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:36px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:18px 30px;
  border-top:1px solid rgba(255,255,255,.13);
  padding-top:24px;
}
.hero-meta-item{
  display:flex;
  flex-direction:column;
  gap:3px;
}
.hero-meta-item small{
  color:rgba(255,255,255,.48);
  font-size:12px;
  letter-spacing:.04em;
}
.hero-meta-item strong{
  color:#fff;
  font-weight:600;
  font-size:15px;
}
.hero-meta-item.safe strong{
  color:var(--gold);
  font-weight:600;
}
.hero-visual-cell{
  position:relative;
}
.app-window{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.17);
  border-radius:18px;
  padding:16px;
  backdrop-filter:blur(6px);
  box-shadow:0 28px 70px rgba(0,0,0,.35);
  transform:rotate(1.2deg);
  transition:transform .3s ease;
}
.app-window:hover{transform:rotate(0deg)}
.window-top{
  display:flex;
  gap:7px;
  margin-bottom:12px;
}
.window-top i{
  width:9px;height:9px;
  border-radius:50%;
  background:#42484b;
  display:block;
}
.window-top i:first-child{background:var(--signal)}
.window-top i:nth-child(2){background:var(--gold)}
.window-media{
  height:330px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-radius:12px;
  position:relative;
}
.window-media::after{
  content:"爱游戏app官网最新版";
  position:absolute;
  left:14px;bottom:14px;
  background:rgba(16,20,22,.75);
  color:#fff;
  font-size:13px;
  padding:6px 12px;
  border-radius:6px;
  backdrop-filter:blur(4px);
}
@media(max-width:1023px){
  .hero-grid{padding-top:36px;padding-bottom:54px;min-height:auto}
  .hero-visual-cell{margin-top:50px}
  .window-media{height:230px}
  .hero-ctas .btn{width:46%;margin-right:0}
}

/* 品牌信任条 */
.trust-strip{
  background:var(--ink-soft);
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.04);
}
.trust-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px 30px;
  color:rgba(255,255,255,.65);
  font-size:14px;
}
.trust-inner span{
  display:inline-flex;
  align-items:center;
  gap:9px;
}
.trust-inner i{color:var(--gold)}

/* 版本亮点 */
.block-features{
  background:var(--paper);
  position:relative;
}
.feature-card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.feature-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 30px 30px;
  position:relative;
  transition:transform .2s,border-color .3s,box-shadow .3s;
}
.feature-card::after{
  content:"";
  position:absolute;
  left:30px;right:30px;bottom:-1px;
  height:3px;
  background:var(--signal);
  transform:scaleX(.25);
  transform-origin:left;
  opacity:0;
  transition:opacity .2s,transform .3s;
}
.feature-card:hover{
  transform:translateY(-3px);
  border-color:rgba(244,81,30,.3);
  box-shadow:var(--shadow-md);
}
.feature-card:hover::after{
  opacity:1;
  transform:scaleX(1);
}
.feature-icon{
  width:48px;
  height:48px;
  border-radius:12px;
  background:rgba(244,81,30,.09);
  color:var(--signal);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  margin-bottom:26px;
}
.feature-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:10px;
}
.feature-card p{
  font-size:14px;
  color:var(--muted-text);
  line-height:1.78;
  margin-bottom:20px;
}
.feature-link{
  font-size:14px;
  color:var(--signal);
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:5px;
  transition:gap .2s;
}
.feature-link:hover{gap:9px;color:var(--signal-dark)}
@media(max-width:1023px){
  .feature-card-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .feature-card-grid{grid-template-columns:1fr}
  .feature-card{padding:26px 22px}
}

/* 新闻区域 */
.block-news{
  background:#fff;
}
.news-layout{
  display:grid;
  grid-template-columns:1fr 360px;
  gap:44px;
}
.news-main-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-bottom:10px;
}
.news-main-title h2{
  font-size:26px;
  color:var(--ink);
  font-weight:700;
}
.more-link{
  color:var(--signal);
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.more-link:hover{gap:8px}
.news-list{
  margin-top:22px;
}
.news-item{
  border-bottom:1px solid var(--line);
  padding:22px 0;
  transition:background .2s;
}
.news-item:first-of-type{padding-top:6px}
.news-item-top{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
}
.news-cat{
  display:inline-block;
  background:rgba(244,81,30,.08);
  color:var(--signal);
  font-size:12px;
  padding:2px 9px;
  border-radius:4px;
  font-weight:600;
}
.news-date{
  color:#9c9c9c;
  font-size:13px;
}
.news-item h3{
  font-size:17px;
  color:var(--ink);
  font-weight:700;
  line-height:1.6;
}
.news-item h3 a{
  transition:color .2s;
}
.news-item h3 a:hover{color:var(--signal)}
.news-item p{
  color:var(--muted-text);
  font-size:14px;
  margin-top:6px;
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-item-more{
  display:inline-flex;
  margin-top:10px;
  font-size:13px;
  color:var(--signal);
  gap:5px;
  font-weight:600;
  transition:gap .2s;
}
.news-item-more:hover{gap:9px}
.cms-empty{
  background:rgba(247,245,242,.75);
  border:1px dashed #d7ccc2;
  border-radius:12px;
  text-align:center;
  padding:60px 20px;
  color:var(--muted-text);
  font-size:15px;
  margin-top:24px;
}

.news-side{}
.side-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  margin-bottom:24px;
}
.side-card h4{
  font-size:16px;
  color:var(--ink);
  font-weight:700;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h4 i{color:var(--gold)}
.side-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.side-tags a{
  padding:4px 13px;
  border:1px solid #e2d8cf;
  border-radius:999px;
  color:var(--body-text);
  font-size:13px;
  transition:all .2s;
}
.side-tags a:hover{
  border-color:var(--signal);
  color:var(--signal);
  background:rgba(244,81,30,.04);
}
.hot-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:11px 0;
  border-bottom:1px dashed #e6ddd6;
}
.hot-list li:last-child{border-bottom:none;padding-bottom:0}
.hot-index{
  font-size:14px;
  font-weight:800;
  color:#ccc2b9;
  line-height:1.5;
  flex:none;
  width:20px;
}
.hot-list li:nth-child(-n+3) .hot-index{color:var(--signal)}
.hot-list a{
  font-size:14px;
  color:var(--body-text);
  line-height:1.5;
  transition:color .2s;
}
.hot-list a:hover{color:var(--signal)}
@media(max-width:1023px){
  .news-layout{grid-template-columns:1fr}
  .news-side{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
  }
  .side-card{margin-bottom:0}
}
@media(max-width:640px){
  .news-side{grid-template-columns:1fr}
}

/* 场景区块 */
.block-scene{
  background:var(--paper);
}
.scene-split{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:54px;
  align-items:center;
}
.scene-media{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-md);
}
.scene-media img{
  width:100%;
  height:430px;
  object-fit:cover;
  transition:transform .5s ease;
}
.scene-media:hover img{transform:scale(1.02)}
.scene-cap{
  position:absolute;
  bottom:16px;left:16px;right:16px;
  background:rgba(16,20,22,.72);
  backdrop-filter:blur(6px);
  border-radius:10px;
  padding:14px 18px;
  color:#fff;
  font-size:14px;
}
.scene-cap strong{color:var(--gold)}
.scene-content h2{
  font-size:30px;
  line-height:1.4;
  color:var(--ink);
  font-weight:800;
  margin-bottom:12px;
}
.scene-content p.lead{
  color:var(--muted-text);
  font-size:15px;
  line-height:1.8;
  margin-bottom:24px;
}
.scene-steps{
  margin-top:24px;
}
.scene-step{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  padding:17px 0;
  border-bottom:1px solid var(--line);
  transition:background .2s;
}
.scene-step:last-child{border-bottom:none}
.step-no{
  font-size:15px;
  font-weight:800;
  color:var(--signal);
  flex:0 0 28px;
  letter-spacing:-.02em;
}
.step-content{
  flex:1;
  min-width:200px;
}
.step-content h4{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
}
.step-content p{
  font-size:14px;
  color:var(--muted-text);
}
.step-access a{
  font-size:14px;
  color:var(--signal);
  font-weight:600;
  display:inline-flex;
  gap:5px;
  align-items:center;
}
.step-access a:hover .fa-arrow-right{transform:translateX(4px)}
.step-access .fa-arrow-right{transition:transform .2s}
@media(max-width:1023px){
  .scene-split{grid-template-columns:1fr;gap:40px}
  .scene-media img{height:330px}
}

/* 玩家评价 */
.block-reviews{
  background:var(--ink);
  color:#fff;
}
.block-reviews .section-header h2{color:#fff}
.block-reviews .section-header .desc{color:rgba(255,255,255,.58)}
.review-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.review-card{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:32px 26px 26px;
  transition:all .2s;
}
.review-card:hover{
  background:rgba(255,255,255,.08);
  transform:translateY(-3px);
}
.review-stars{
  color:var(--gold);
  letter-spacing:4px;
  font-size:15px;
  margin-bottom:18px;
}
.review-card blockquote{
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.86);
  min-height:76px;
}
.review-author{
  margin-top:24px;
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:14px;
  display:flex;
  align-items:center;
  gap:10px;
  color:rgba(255,255,255,.55);
  font-size:13px;
}
.avatar-block{
  width:26px;height:26px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--signal),var(--gold));
  flex:none;
}
@media(max-width:900px){
  .review-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .review-grid{grid-template-columns:1fr}
}

/* 热门板块 */
.block-hot{
  background:#fff;
}
.hot-list-block{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:26px;
}
.hot-card{
  background:var(--paper);
  display:grid;
  grid-template-columns:260px 1fr;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  transition:border-color .2s,box-shadow .2s;
}
.hot-card:hover{
  border-color:rgba(244,81,30,.28);
  box-shadow:var(--shadow-sm);
}
.hot-card-img img{
  width:100%;height:100%;
  min-height:190px;
  object-fit:cover;
}
.hot-card-content{
  padding:28px 24px 22px;
  display:flex;
  flex-direction:column;
}
.hot-card-cat{
  font-size:12px;
  color:var(--signal);
  background:rgba(244,81,30,.08);
  padding:2px 9px;
  border-radius:4px;
  display:inline-block;
  width:max-content;
  font-weight:600;
}
.hot-card-content h3{
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  line-height:1.5;
  margin:14px 0 7px;
}
.hot-card-content p{
  color:var(--muted-text);
  font-size:14px;
  line-height:1.7;
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.hot-card-foot{
  margin-top:auto;
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:#9d938b;
  font-size:12px;
}
@media(max-width:1100px){
  .hot-card{grid-template-columns:1fr}
}
@media(max-width:780px){
  .hot-list-block{grid-template-columns:1fr}
}

/* FAQ */
.block-faq{
  background:var(--paper);
}
.faq-split{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:64px;
}
.faq-left h2{
  font-size:32px;
  line-height:1.4;
  color:var(--ink);
  font-weight:800;
  margin-bottom:14px;
}
.faq-left p{
  color:var(--muted-text);
  font-size:15px;
  line-height:1.8;
}
.faq-left-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:13px;
  padding:17px 18px;
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:26px;
}
.faq-left-item .fa-solid{
  font-size:22px;
  color:var(--gold);
}
.faq-left-item strong{
  font-size:14px;
  display:block;
  color:var(--ink);
  line-height:1.4;
}
.faq-left-item span{
  font-size:13px;
  color:var(--muted-text);
}
.faq-accordion{}
details.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:11px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s;
}
details.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  cursor:pointer;
  list-style:none;
  padding:19px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary::after{
  content:"+";
  width:30px;height:30px;
  border-radius:8px;
  background:rgba(244,81,30,.1);
  color:var(--signal);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  font-weight:400;
  flex:none;
  transition:transform .25s,background .2s,color .2s;
}
details.faq-item[open]{
  border-color:rgba(244,81,30,.3);
}
details.faq-item[open] summary::after{
  transform:rotate(45deg);
  background:var(--signal);
  color:#fff;
}
.faq-answer{
  padding:0 24px 20px;
  color:var(--muted-text);
  font-size:14px;
  line-height:1.85;
  border-top:1px dashed var(--line);
  margin:0 24px 0;
  padding-top:14px;
  margin-top:-7px;
}
@media(max-width:1023px){
  .faq-split{grid-template-columns:1fr;gap:34px}
}

/* CTA */
.block-cta{
  background:var(--ink);
  position:relative;
  color:#fff;
  text-align:center;
  padding:92px 20px;
  overflow:hidden;
}
.block-cta::after{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
  opacity:.14;
  pointer-events:none;
}
.cta-content{
  position:relative;
  z-index:2;
  max-width:780px;
  margin:0 auto;
}
.cta-content h2{
  font-size:clamp(28px,4.2vw,42px);
  line-height:1.4;
  font-weight:800;
  margin-bottom:16px;
}
.cta-content p{
  color:rgba(255,255,255,.7);
  margin-bottom:32px;
  font-size:15px;
}
.cta-button-row{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:16px;
}
.cta-safe{
  font-size:13px;
  color:rgba(255,255,255,.46);
}

/* 页脚 */
.site-footer{
  background:#0f1214;
  color:rgba(255,255,255,.72);
}
.footer-top{
  padding:62px 0 40px;
  display:grid;
  grid-template-columns:1.2fr 1.2fr .8fr;
  gap:50px;
}
.footer-brand{
  display:flex;
  flex-direction:column;
}
.footer-brand .brand-text{
  color:#fff;
  margin-bottom:10px;
}
.footer-desc{
  font-size:14px;
  color:rgba(255,255,255,.55);
  max-width:280px;
  line-height:1.8;
}
.footer-safe-tips{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--gold);
  font-size:13px;
  margin-top:16px;
}
.footer-col h5{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-col a{
  display:block;
  color:rgba(255,255,255,.6);
  font-size:14px;
  margin-bottom:9px;
  transition:all .2s;
}
.footer-col a:hover{color:var(--gold);transform:translateX(3px)}
.footer-col p{
  font-size:13px;
  color:rgba(255,255,255,.43);
  line-height:1.7;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;
  font-size:13px;
  color:rgba(255,255,255,.4);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:6px 20px;
}
.footer-bottom .sep{color:var(--gold)}
@media(max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;gap:38px}
}
@media(max-width:680px){
  .footer-top{grid-template-columns:1fr}
}

@media(max-width:540px){
  .section{padding:62px 0}
  .brand-text{font-size:17px}
  .nav-main .nav-btn span{display:none}
  .nav-main .nav-btn{padding:0 14px}
  .header-search{display:none}
  .hero-lead{font-size:15px}
  .section-header{flex-direction:column;align-items:flex-start;gap:10px}
  .window-media{height:190px}
  .faq-answer{margin:0 10px;padding:14px 12px;padding-top:10px}
}

/* roulang page: category1 */
:root{
  --ink:#101416;
  --ink-2:#1b2024;
  --ink-3:#232a30;
  --signal:#f4511e;
  --signal-dark:#d84315;
  --gold:#e9b949;
  --page-bg:#f7f5f2;
  --card-bg:#ffffff;
  --text:#2b3138;
  --text-weak:#6f767e;
  --line:#e8e2da;
  --line-deep:#d9d2c8;
  --radius-lg:10px;
  --radius-md:8px;
  --radius-sm:6px;
  --shadow-soft:0 8px 30px rgba(16,20,22,.07),0 2px 8px rgba(16,20,22,.04);
  --shadow-float:0 18px 50px rgba(16,20,22,.12),0 4px 16px rgba(16,20,22,.06);
  --font-stack:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font-stack);
  background:var(--page-bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(244,81,30,.25);outline-offset:2px;}
.container{max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px;}
i,em{font-style:normal;}
a.discrete-link{color:var(--signal);font-size:14px;font-weight:500;}
a.discrete-link i{transition:transform .2s ease;display:inline-block;}
a.discrete-link:hover i{transform:translateX(3px);}

/* ===== header ===== */
.site-header{
  background:rgba(16,20,22,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.06);
  position:sticky;top:0;z-index:100;
  transition:transform .2s ease;
}
.site-header .nav-main{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:10px;padding-bottom:10px;gap:20px;min-height:60px;
}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-glyph{
  width:40px;height:40px;border-radius:var(--radius-sm);
  background:linear-gradient(135deg,var(--signal) 0%,var(--signal-dark) 100%);
  color:#fff;font-size:20px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(244,81,30,.3);
}
.brand-text{color:#fff;font-size:20px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.brand-text em{color:var(--gold);font-style:normal;}
.nav-tools{display:flex;align-items:center;gap:16px;}
.header-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:999px;
  padding:0 14px;height:38px;width:250px;
  transition:background .2s ease,border-color .2s ease;
}
.header-search:focus-within{border-color:rgba(244,81,30,.6);background:rgba(255,255,255,.1);}
.header-search i{color:var(--gold);font-size:13px;}
.header-search input{
  background:transparent;border:none;outline:none;color:#fff;
  font-size:13px;width:100%;height:100%;
}
.header-search input::placeholder{color:rgba(255,255,255,.45);}
.nav-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--signal);color:#fff;border-radius:var(--radius-sm);
  padding:8px 16px;font-size:13px;font-weight:500;height:38px;
  transition:background .2s ease,transform .1s ease;
}
.nav-btn:hover{background:var(--signal-dark);color:#fff;}
.nav-btn:active{transform:translateY(1px);}
.menu-burger{
  display:none;background:transparent;border:1px solid rgba(255,255,255,.2);
  color:#fff;border-radius:var(--radius-sm);width:38px;height:38px;
  font-size:16px;cursor:pointer;align-items:center;justify-content:center;
}
.channel-bar{
  background:rgba(10,12,14,.55);
  border-top:1px solid rgba(255,255,255,.03);
}
.channel-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:44px;}
.channel-menu{
  display:flex;align-items:center;gap:2px;flex-wrap:wrap;
}
.channel-menu a{
  display:inline-flex;align-items:center;gap:6px;
  color:rgba(255,255,255,.72);font-size:14px;font-weight:400;
  padding:9px 14px;border-radius:var(--radius-sm);
  position:relative;transition:color .2s ease,background .2s ease;
}
.channel-menu a:hover{color:#fff;background:rgba(255,255,255,.05);}
.channel-menu a.active{color:#fff;font-weight:500;}
.channel-menu a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:0;width:18px;height:2px;background:var(--signal);border-radius:999px;
}
.channel-tag{
  display:inline-flex;align-items:center;gap:4px;
  background:rgba(233,185,73,.14);color:var(--gold);
  border:1px solid rgba(233,185,73,.28);
  border-radius:999px;padding:4px 14px;font-size:12px;white-space:nowrap;
  margin-left:auto;transition:background .2s ease;
}
.channel-tag:hover{background:rgba(233,185,73,.25);color:var(--gold);}
.menu-drawer{
  display:none;background:var(--ink);
  border-top:1px solid rgba(255,255,255,.06);
  padding:16px 0;
}
.menu-drawer a{
  display:block;padding:12px 16px;color:rgba(255,255,255,.85);
  font-size:15px;border-bottom:1px solid rgba(255,255,255,.05);
}
.menu-drawer a.active{color:var(--gold);}
.menu-drawer a:last-child{border-bottom:none;}

/* ===== breadcrumb ===== */
.breadcrumb{
  padding:16px 0 0;
  font-size:13px;color:var(--text-weak);
}
.breadcrumb a{color:var(--text-weak);}
.breadcrumb a:hover{color:var(--signal);}
.breadcrumb .sep{margin:0 8px;color:var(--line-deep);}
.breadcrumb .current{color:var(--text);font-weight:500;}

/* ===== category hero ===== */
.category-hero{
  background:linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 60%,var(--ink-3) 100%);
  border-radius:var(--radius-lg);
  margin-top:20px;
  overflow:hidden;
  position:relative;
}
.category-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.category-hero .hero-grid{
  display:flex;align-items:center;min-height:220px;position:relative;z-index:1;
}
.category-hero .hero-info{
  flex:1.4;padding:40px 0 40px 48px;color:#fff;
}
.category-hero .hero-image{
  flex:1;min-height:220px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  position:relative;
}
.category-hero .hero-image::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--ink) 0%,rgba(16,20,22,.1) 40%,rgba(16,20,22,.2) 100%);
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(233,185,73,.12);color:var(--gold);
  border:1px solid rgba(233,185,73,.25);
  border-radius:999px;padding:5px 14px;font-size:12px;letter-spacing:.06em;
  margin-bottom:14px;
}
.category-hero h1{
  font-size:30px;line-height:1.3;margin:0 0 10px;
  color:#fff;font-weight:700;letter-spacing:.01em;
}
.category-hero h1 span{color:var(--gold);}
.category-hero .hero-desc{
  color:rgba(255,255,255,.72);
  font-size:15px;line-height:1.75;
  max-width:520px;
}
.hero-meta{
  display:flex;align-items:center;gap:20px;margin-top:18px;
  flex-wrap:wrap;
}
.hero-meta .meta-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.55);
  background:rgba(255,255,255,.04);
  border-radius:999px;padding:5px 14px;
}
.hero-meta .meta-item i{color:var(--signal);}

/* ===== info stats ===== */
.block-stats{padding:40px 0 0;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-card{
  background:var(--card-bg);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:22px 24px;
  transition:border .2s ease,transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{border-color:rgba(244,81,30,.4);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
.stat-card .stat-num{font-size:30px;font-weight:700;color:var(--ink);letter-spacing:-.02em;}
.stat-card .stat-num i{color:var(--gold);font-size:22px;margin-right:2px;font-style:normal;}
.stat-card .stat-label{font-size:13px;color:var(--text-weak);margin-top:4px;}

/* ===== section common ===== */
.section-block{padding:52px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-bottom:24px;gap:16px;
}
.eyebrow{
  display:block;font-size:13px;font-weight:500;
  letter-spacing:.08em;color:var(--signal);
  text-transform:uppercase;margin-bottom:6px;
}
.section-block h2{
  font-size:28px;line-height:1.3;color:var(--ink);
  font-weight:700;margin:0 0 6px;
  position:relative;
}
.section-block h2::after{
  content:"";display:block;width:36px;height:3px;
  background:var(--signal);border-radius:999px;
  margin-top:8px;
}
.section-block .section-sub{color:var(--text-weak);font-size:14px;max-width:640px;margin:0;}
.see-all{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-weak);font-size:14px;flex-shrink:0;
}
.see-all:hover{color:var(--signal);}

/* ===== horizontal list cards ===== */
.feature-list{display:flex;flex-direction:column;gap:22px;}
.f-list-card{
  display:flex;background:var(--card-bg);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;transition:border .2s ease,box-shadow .2s ease;
}
.f-list-card:hover{border-color:rgba(244,81,30,.35);box-shadow:var(--shadow-soft);}
.f-list-card .card-thumb{
  width:280px;flex-shrink:0;min-height:180px;
  background:#eee;overflow:hidden;position:relative;
}
.f-list-card .card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.f-list-card:hover .card-thumb img{transform:scale(1.03);}
.card-thumb-fallback{position:absolute;inset:0;background:var(--ink);}
.f-list-card .card-body{
  padding:22px 26px;flex:1;display:flex;flex-direction:column;
}
.card-top-line{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px;
}
.badge-solid{
  display:inline-flex;align-items:center;border-radius:999px;
  background:rgba(244,81,30,.1);color:var(--signal);
  padding:3px 12px;font-size:12px;font-weight:500;
}
.badge-new{
  display:inline-flex;align-items:center;
  background:rgba(233,185,73,.14);color:#a67c1a;
  padding:3px 10px;font-size:12px;border-radius:999px;gap:4px;
}
.card-body h3{
  font-size:19px;line-height:1.45;color:var(--ink);
  margin:0 0 6px;font-weight:700;
}
.card-body h3 a:hover{color:var(--signal);}
.card-excerpt{
  color:var(--text-weak);font-size:14px;line-height:1.72;
  margin:0 0 12px;
}
.card-bottom-line{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--line);
  margin-top:auto;font-size:13px;color:var(--text-weak);
}
.card-bottom-line .meta {
  display:flex;align-items:center;gap:6px;flex-wrap:wrap;
}
.card-bottom-line .meta i{
  margin-right:4px;
}
.card-ver{
  font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  font-size:12px;background:var(--page-bg);
  border:1px solid var(--line);border-radius:999px;
  padding:2px 10px;color:var(--ink);
}
.btn-arrow-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;color:var(--signal);
}
.btn-arrow-text i{transition:transform .2s ease;}
.btn-arrow-text:hover i{transform:translateX(3px);}

/* tag cloud in card */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.tag-sm{
  display:inline-flex;align-items:center;background:var(--page-bg);
  border:1px solid var(--line);color:var(--text-weak);
  padding:2px 10px;border-radius:999px;font-size:12px;
  transition:border .2s ease,color .2s ease;
}
.tag-sm:hover{border-color:var(--signal);color:var(--signal);}

/* ===== guide split ===== */
.has-cms-note{position:relative;}
.guide-split{
  display:flex;gap:40px;align-items:center;
  background:var(--card-bg);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px;margin-top:8px;
}
.guide-visual{
  width:42%;flex-shrink:0;min-height:220px;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border-radius:var(--radius-md);position:relative;
  overflow:hidden;
}
.guide-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,20,22,.15) 0%,rgba(16,20,22,.55) 100%);
}
.guide-point{
  position:absolute;z-index:2;color:#fff;bottom:16px;left:16px;
  font-size:14px;display:flex;align-items:center;gap:8px;
}
.guide-content{flex:1;}
.guide-content h3{font-size:22px;margin:0 0 8px;color:var(--ink);font-weight:700;}
.guide-content p{color:var(--text-weak);font-size:14px;line-height:1.8;margin-bottom:16px;}
.option-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.option-list li{
  display:flex;align-items:flex-start;gap:10px;
  background:var(--page-bg);border-radius:var(--radius-sm);
  padding:10px 14px;font-size:14px;border:1px solid transparent;
  transition:border .2s ease,background .2s ease;
}
.option-list li:hover{border-color:var(--line-deep);background:#fff;}
.option-list li i{color:var(--signal);margin-top:4px;flex-shrink:0;}
.option-list b{font-weight:600;color:var(--ink);margin-right:4px;}
.option-list span{color:var(--text-weak);}

/* ===== features three cols ===== */
.features-triple{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feature-item{
  background:var(--card-bg);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:30px 26px 24px;
  position:relative;transition:box-shadow .2s ease,border .2s ease,transform .2s ease;
}
.feature-item::before{
  content:"";position:absolute;left:26px;right:26px;top:0;height:3px;
  background:var(--signal);border-radius:0 0 4px 4px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .25s ease;
}
.feature-item:hover::before{transform:scaleX(1);border-color:rgba(244,81,30,.35);}
.feature-item:hover{box-shadow:var(--shadow-soft);}
.feature-icon{
  width:46px;height:46px;border-radius:var(--radius-sm);
  background:rgba(244,81,30,.08);color:var(--signal);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:16px;
}
.feature-item.gold .feature-icon{background:rgba(233,185,73,.15);color:#b8860b;}
.feature-item h3{font-size:17px;color:var(--ink);font-weight:700;margin-bottom:8px;}
.feature-item p{
  font-size:14px;line-height:1.7;color:var(--text-weak);margin-bottom:14px;
}
.feature-item .append{font-size:13px;color:var(--signal);font-weight:500;}

/* ===== process steps ===== */
.steps-wrap{
  background:var(--ink);border-radius:var(--radius-lg);
  padding:36px 32px;position:relative;overflow:hidden;
}
.steps-wrap::before{
  content:"";
  position:absolute;right:-80px;top:-80px;width:200px;height:200px;
  background:radial-gradient(circle,rgba(244,81,30,.2),transparent 65%);
}
.steps-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:28px;position:relative;z-index:1;
}
.step-item{
  display:flex;gap:14px;align-items:flex-start;
}
.step-num{
  font-size:32px;font-weight:800;color:var(--gold);
  opacity:.75;line-height:1;font-family:ui-monospace,Menlo,Consolas,monospace;
  width:40px;
}
.step-item h4{
  color:#fff;font-size:16px;font-weight:600;margin-bottom:6px;
}
.step-item p{
  color:rgba(255,255,255,.58);font-size:13px;line-height:1.7;margin:0;
}

/* ===== hot content ===== */
.hot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.hot-card{
  background:var(--card-bg);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .2s ease,border .2s ease,box-shadow .2s ease;
}
.hot-card:hover{transform:translateY(-3px);border-color:rgba(244,81,30,.28);box-shadow:var(--shadow-soft);}
.hot-card .thumb{height:160px;background:#eee;over-flow:hidden;position:relative;display:block;}
.hot-card .thumb img{width:100%;height:100%;object-fit:cover;}
.hot-card .thumb i{
  position:absolute;top:12px;left:12px;background:rgba(244,81,30,.9);
  color:#fff;font-size:11px;border-radius:999px;padding:3px 10px;
  font-style:normal;
}
.hot-card .body{padding:16px 18px 18px;}
.hot-card .meta-row{
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--text-weak);margin-bottom:6px;
}
.hot-card .meta-row i{margin-right:3px;}
.hot-card .body h3{
  font-size:15px;line-height:1.55;margin:0 0 12px;color:var(--text);font-weight:600;
}
.hot-card .body h3 a:hover{color:var(--signal);}
.hot-card .tag-row{display:flex;gap:6px;flex-wrap:wrap;}

/* ===== FAQ ===== */
.faq-wrap{background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius-lg);padding:10px 28px;}
details.faq-item{
  border-bottom:1px solid var(--line);
  padding:0;border-radius:0;
}
details.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  list-style:none;cursor:pointer;
  font-size:16px;font-weight:500;color:var(--text);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;transition:color .2s ease;
}
.faq-item summary:hover{color:var(--signal);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .faq-icon{
  width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line-deep);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;color:var(--text-weak);font-size:12px;
  transition:transform .25s ease,border-color .25s ease,color .25s ease;
}
.faq-item[open] summary .faq-icon{
  transform:rotate(45deg);border-color:var(--signal);color:var(--signal);
}
.faq-item .faq-body{
  color:var(--text-weak);font-size:14px;line-height:1.75;
  padding:0 20px 20px 0;
}

/* ===== CTA band ===== */
.cta-band{
  background:linear-gradient(120deg,var(--ink) 0%,var(--ink-2) 80%);
  border-radius:var(--radius-lg);
  padding:52px 44px;
  text-align:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;opacity:.4;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:26px 26px;
}
.cta-band h2{
  color:#fff;font-size:22px;margin:0 0 8px;font-weight:700;
  letter-spacing:.01em;
}
.cta-band p{
  color:rgba(255,255,255,.65);font-size:14px;margin:0 0 24px;
}
.cta-band .cta-actions{
  display:flex;justify-content:center;gap:14px;flex-wrap:wrap;
  position:relative;z-index:1;
}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;background:var(--signal);color:#fff;
  border:1px solid var(--signal);min-height:42px;
  padding:0 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;cursor:pointer;
  transition:background .2s ease,border .2s ease,transform .1s ease;
}
.btn-primary:hover{background:var(--signal-dark);color:#fff;border-color:var(--signal-dark);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;background:transparent;border:1px solid rgba(255,255,255,.35);
  color:#fff;min-height:42px;padding:0 26px;border-radius:var(--radius-sm);
  font-size:15px;cursor:pointer;transition:border-color .2s ease,background .2s ease;
}
.btn-outline:hover{background:rgba(255,255,255,.05);color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline:active{transform:translateY(1px);}
.cta-note{margin-top:16px;font-size:12px;color:rgba(255,255,255,.4);position:relative;}

/* ===== footer ===== */
.site-footer{
  background:#0c0f11;
  border-top:3px solid var(--ink);
  margin-top:60px;
  color:rgba(255,255,255,.68);
}
.footer-top{
  display:grid;
  grid-template-columns:2fr 1fr 1.5fr;
  gap:28px;padding:36px 0 30px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.footer-brand .brand-logo{margin-bottom:10px;}
.footer-brand .logo-glyph{
  width:36px;height:36px;font-size:18px;
}
.footer-brand .brand-text{font-size:18px;}
.footer-desc{font-size:13px;line-height:1.7;color:rgba(255,255,255,.55);margin:10px 0 8px;max-width:360px;}
.footer-safe-tips{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(233,185,73,.08);
  border:1px solid rgba(233,185,73,.2);
  border-radius:999px;
  padding:3px 14px;color:var(--gold);
  font-size:12px;
}
.footer-safe-tips i{color:var(--gold);}
.footer-col{display:flex;flex-direction:column;align-items:flex-start;}
.footer-col h5{
  color:#fff;font-size:15px;font-weight:600;
  margin-bottom:12px;letter-spacing:.03em;
}
.footer-col a{
  color:rgba(255,255,255,.6);font-size:13px;
  padding:3px 0;line-height:1.8;text-decoration:none;
  position:relative;
}
.footer-col a:hover{color:var(--gold);}
.footer-col p{font-size:13px;color:rgba(255,255,255,.5);line-height:1.7;}
.footer-bottom{
  display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:10px;
  padding:18px 0;
  font-size:12px;color:rgba(255,255,255,.42);
}

/* grid utility reset for foundation */
.row{max-width:1280px;}

/* ===== responsive ===== */
@media(max-width:1024px){
  .header-search{width:180px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .features-triple{grid-template-columns:1fr 1fr;}
  .hot-grid{grid-template-columns:1fr 1fr;}
  .category-hero .hero-info{padding-left:32px;}
  .category-hero .hero-image{min-width:220px;}
  .guide-split{padding:24px;}
  .footer-top{grid-template-columns:1fr 1fr;}
}
@media(max-width:840px){
  .header-search{display:none;}
  .nav-btn.desktop-label{display:none;}
  .menu-burger{display:inline-flex;}
  .channel-bar{display:none;}
  .site-header .menu-drawer{display:none;}
  .site-header.menu-open .menu-drawer{display:block;}
  .category-hero .hero-image{display:none;}
  .category-hero .hero-grid{min-height:auto;}
  .category-hero .hero-info{padding:28px 24px;}
  .f-list-card{flex-direction:column;min-height:auto;}
  .f-list-card .card-thumb{width:100%;min-height:180px;}
  .guide-split{flex-direction:column;}
  .guide-visual{width:100%;}
}
@media(max-width:640px){
  body{font-size:15px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:18px;}
  .brand-text em{font-size:16px;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .stat-card{padding:15px 16px;}
  .stat-card .stat-num{font-size:24px;}
  .section-block h2{font-size:22px;}
  .features-triple{grid-template-columns:1fr;}
  .hot-grid{grid-template-columns:1fr;}
  .steps-grid{grid-template-columns:1fr;}
  .steps-wrap{padding:30px 20px;}
  .footer-top{grid-template-columns:1fr;}
  .footer-col{padding-top:4px;}
  .cta-band{padding:36px 20px;}
  .cta-band h2{font-size:18px;}
  .channel-menu a{font-size:13px;padding:8px 10px;}
}

/* roulang page: article */
:root {
    --ink: #101416;
    --ink-soft: #1b2125;
    --signal: #F4511E;
    --signal-dark: #D84315;
    --gold: #E9B949;
    --paper: #F7F5F2;
    --card: #ffffff;
    --text: #2B2F32;
    --text-soft: #6A7177;
    --border: #E8E1D8;
    --line: rgba(255, 255, 255, .09);
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 18px 50px rgba(16, 20, 22, .08);
    --container: 1280px;
    --side: clamp(16px, 3vw, 32px);
    --tnum: "SF Mono", "JetBrains Mono", Consolas, "PingFang SC", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, Inter, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
ul, ol { padding-left: 0; margin: 0; }
p, h1, h2, h3, h4, h5 { margin: 0; }
h1, h2, h3 { line-height: 1.25; }
:focus-visible {
    outline: 3px solid rgba(244, 81, 30, .35);
    outline-offset: 2px;
    border-radius: 6px;
}
.skip-link {
    position: fixed;
    top: -60px;
    left: 16px;
    z-index: 120;
    background: var(--signal);
    color: #fff;
    padding: 8px 14px;
    border-radius: 0 0 8px 8px;
    transition: top .2s;
}
.skip-link:focus { top: 0; }

.container {
    width: 100%;
    max-width: var(--container);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--side);
    padding-right: var(--side);
}

/* ========== Header & Navigation ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(16, 20, 22, .96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}
.site-header::after {
    content: "";
    display: block;
    height: 2px;
    background: linear-gradient(90deg, var(--signal), var(--gold) 55%, transparent 90%);
    opacity: .65;
    pointer-events: none;
}
.nav-main {
    min-height: 66px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-glyph {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    background: var(--signal);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    border-radius: 0 8px 0 8px;
    box-shadow: 0 0 0 1px rgba(255,255,255,.16) inset;
}
.brand-text {
    font-size: 18px;
    font-weight: 700;
    color: #F4F1EE;
    letter-spacing: .01em;
    white-space: nowrap;
}
.brand-text em {
    font-style: normal;
    color: var(--gold);
    margin-left: 2px;
    font-size: .86em;
    background: rgba(233, 185, 73, .14);
    padding: 1px 7px;
    border-radius: 999px;
}
.nav-tools {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}
.header-search {
    position: relative;
    display: flex;
    align-items: center;
}
.header-search i {
    position: absolute;
    left: 13px;
    color: rgba(255,255,255,.45);
    font-size: 14px;
    pointer-events: none;
}
.header-search input {
    width: 216px;
    height: 38px;
    border: 1px solid rgba(255,255,255,.14);
    background: rgba(255,255,255,.06);
    border-radius: 999px;
    padding: 0 16px 0 38px;
    color: #F4F1EE;
    font-size: 13px;
    outline: none;
    transition: width .2s ease, border-color .2s ease, background .2s ease;
}
.header-search input::placeholder { color: rgba(255,255,255,.42); }
.header-search input:focus {
    width: 260px;
    border-color: rgba(233,185,73,.6);
    background: rgba(255,255,255,.1);
}
.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 38px;
    padding: 0 15px;
    border-radius: 999px;
    border: 1px solid rgba(233,185,73,.5);
    color: var(--gold);
    font-size: 13px;
    background: rgba(233,185,73,.08);
    transition: background .2s, color .2s, transform .2s;
}
.nav-btn:hover { background: rgba(233,185,73,.18); color: #fff; transform: translateY(-1px); }
.menu-burger {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 10px;
    color: #F4F1EE;
    background: transparent;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: border .2s, background .2s;
}
.menu-burger:hover { border-color: var(--gold); }
.menu-burger i { font-size: 18px; }

.channel-bar { border-top: 1px solid rgba(255,255,255,.05); }
.channel-bar-inner {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.channel-menu { display: flex; align-items: center; flex-wrap: wrap; }
.channel-menu a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: relative;
    padding: 0 5px;
    height: 46px;
    color: rgba(255,255,255,.64);
    font-size: 14px;
    font-weight: 500;
    margin-right: 26px;
    transition: color .18s;
}
.channel-menu a:last-child { margin-right: 0; }
.channel-menu a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 3px;
    border-radius: 999px;
    background: var(--signal);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .22s ease;
}
.channel-menu a:hover { color: #fff; }
.channel-menu a:hover::after { transform: scaleX(1); transform-origin: left; }
.channel-menu a.active { color: #fff; }
.channel-menu a.active::after { transform: scaleX(1); }
.channel-tag {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    font-size: 12px;
    color: var(--gold);
    background: rgba(233,185,73,.1);
    border: 1px solid rgba(233,185,73,.28);
    padding: 4px 12px;
    border-radius: 999px;
    transition: background .2s;
}
.channel-tag:hover { background: rgba(233,185,73,.18); }

.mobile-panel {
    display: none;
    border-top: 1px solid rgba(255,255,255,.07);
    background: #14191c;
    padding: 15px 0 20px;
}
.mobile-panel.is-open { display: block; }
.mobile-search {
    position: relative;
    margin: 0 16px 12px;
}
.mobile-search i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,.42);
    font-size: 14px;
}
.mobile-search input {
    width: 100%;
    height: 42px;
    border: 1px solid rgba(255,255,255,.13);
    background: rgba(255,255,255,.06);
    border-radius: 999px;
    padding: 0 16px 0 40px;
    color: #fff;
    font-size: 14px;
    outline: none;
}
.mobile-search input:focus { border-color: var(--gold); }
.mobile-nav { display: grid; gap: 2px; padding: 0 16px; }
.mobile-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 10px;
    color: rgba(255,255,255,.78);
    font-size: 15px;
    border-radius: 10px;
}
.mobile-nav a i { color: var(--gold); font-size: 13px; opacity: .6; }
.mobile-nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.mobile-nav a.active { color: var(--gold); background: rgba(233,185,73,.08); }
.mobile-nav .m-download {
    margin-top: 10px;
    color: #fff;
    background: var(--signal);
}
.mobile-nav .m-download:hover { background: var(--signal-dark); }

/* ========== Article hero ========== */
.article-hero {
    background:
        linear-gradient(105deg, rgba(16,20,22,.96) 0%, rgba(16,20,22,.84) 48%, rgba(23,28,31,.62) 100%),
        url("/assets/images/backpic/back-1.png") center/cover no-repeat;
    padding: 58px 0 82px;
    position: relative;
    overflow: hidden;
}
.article-hero::before {
    content: "";
    pointer-events: none;
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: .22;
}
.article-hero .crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,.5);
    font-size: 13px;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}
.crumb a { color: rgba(255,255,255,.62); transition: color .2s; }
.crumb a:hover { color: var(--gold); }
.crumb i { font-size: 11px; color: rgba(255,255,255,.3); }
.article-hero h1 {
    font-size: clamp(30px, 4vw, 44px);
    font-weight: 700;
    color: #fff;
    max-width: 900px;
    line-height: 1.3;
    position: relative;
    z-index: 1;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    align-items: center;
    margin-top: 26px;
    color: rgba(255,255,255,.58);
    font-size: 13px;
    position: relative;
    z-index: 1;
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.meta-item i { color: var(--gold); font-size: 13px; }
.meta-label {
    display: inline-flex;
    align-items: center;
    border: 1px solid rgba(233,185,73,.45);
    border-radius: 999px;
    padding: 1px 12px;
    color: var(--gold);
    font-size: 12px;
    background: rgba(233,185,73,.07);
}
.article-hero .crumb .current { color: rgba(255,255,255,.72); }

/* ========== Article body / reading ========== */
.article-main {
    position: relative;
    background: var(--paper);
    padding-bottom: 70px;
}
.article-body-wrap {
    margin-top: -42px;
    position: relative;
    z-index: 2;
}
.article-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    max-width: 860px;
    margin: 0 auto;
    padding: clamp(24px, 5vw, 52px);
}
.article-source-note {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    background: #FBF8F4;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 16px;
    font-size: 13px;
    color: var(--text-soft);
    margin-bottom: 28px;
}
.article-source-note i { color: var(--signal); }
.article-content {
    font-size: 16px;
    line-height: 1.85;
    color: #32373b;
}
.article-content p { margin: 0 0 1.2em; }
.article-content p:last-child { margin-bottom: 0; }
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 1.8em 0 .7em;
    padding-left: 13px;
    border-left: 4px solid var(--signal);
    line-height: 1.35;
}
.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 1.6em 0 .55em;
}
.article-content h4 {
    font-size: 17px;
    font-weight: 600;
    margin: 1.4em 0 .45em;
}
.article-content img {
    border-radius: 10px;
    border: 1px solid var(--border);
    margin: 1.2em auto;
}
.article-content ul,
.article-content ol {
    margin: 0 0 1.3em;
    padding-left: 1.45em;
}
.article-content li {
    margin-bottom: .4em;
}
.article-content a {
    color: var(--signal);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    transition: color .2s;
}
.article-content a:hover { color: var(--signal-dark); text-decoration-color: currentColor; }
.article-content blockquote {
    margin: 1.5em 0;
    padding: 16px 20px;
    background: #FBF7F2;
    border-left: 4px solid var(--gold);
    color: #4e565b;
    border-radius: 0 10px 10px 0;
    font-size: 15.5px;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4em 0;
    font-size: 14.5px;
    background: #FBFAF8;
}
.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-content th {
    background: #F0EBE4;
    font-weight: 600;
}
.article-content tr:hover td { background: #FDFCFA; }
.article-content pre,
.article-content code {
    font-family: var(--tnum);
}
.article-content code {
    background: #1c1f22;
    color: #f1d8a8;
    border-radius: 5px;
    padding: 2px 7px;
    font-size: .9em;
}
.article-content pre {
    background: #14181b;
    color: #e6e1d9;
    padding: 18px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 1.4em 0;
    line-height: 1.6;
}
.article-content pre code { background: transparent; color: inherit; padding: 0; }

.article-extras {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
}
.tag-line {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.tag-line::before {
    content: "标签";
    font-size: 12px;
    color: var(--text-soft);
    background: #F2EEE8;
    border-radius: 999px;
    padding: 3px 10px;
}
.tag-line a {
    font-size: 13px;
    color: var(--text-soft);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 3px 11px;
    transition: border-color .2s, background .2s, color .2s;
}
.tag-line a:hover {
    color: var(--signal);
    border-color: rgba(244, 81, 30, .45);
    background: rgba(244, 81, 30, .04);
}
.share-box {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-soft);
    font-size: 13px;
}
.share-btn {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: #FBF8F4;
    color: var(--text-soft);
    font-size: 13px;
    cursor: pointer;
    transition: color .2s, border-color .2s, background .2s;
}
.share-btn:hover {
    color: var(--signal);
    border-color: rgba(244, 81, 30, .4);
    background: #fff;
}

/* ========== Guide CTA ========== */
.guide-cta {
    margin-top: 60px;
}
.guide-inner {
    background: linear-gradient(135deg, #fffdf9 0%, #F4EBDD 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
    align-items: center;
    box-shadow: 0 14px 38px rgba(16, 20, 22, .05);
}
.guide-main {
    padding: clamp(28px, 4vw, 48px);
    position: relative;
}
.guide-main::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 5px;
    background: linear-gradient(180deg, var(--signal), var(--gold));
    opacity: .8;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--signal);
    margin-bottom: 12px;
}
.guide-main h2 {
    font-size: clamp(22px, 2.5vw, 28px);
    color: var(--ink);
    margin-bottom: 12px;
}
.guide-main p {
    color: var(--text-soft);
    font-size: 15px;
    max-width: 560px;
}
.guide-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 0 clamp(26px, 3vw, 40px);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background .18s, color .18s, transform .18s, border-color .18s, box-shadow .18s;
    white-space: nowrap;
}
.btn i { font-size: 13px; }
.btn-dark {
    background: var(--ink);
    color: #fff;
}
.btn-dark:hover {
    background: #222a2f;
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(16, 20, 22, .18);
}
.btn-dark:active { transform: translateY(0); }
.btn-outline {
    background: transparent;
    color: var(--ink);
    border-color: rgba(16, 20, 22, .3);
}
.btn-outline:hover {
    border-color: var(--signal);
    color: var(--signal-dark);
    transform: translateY(-1px);
}
.btn-outline:active { transform: translateY(0); }

/* ========== Related stories ========== */
.related-section {
    margin-top: 70px;
}
.related-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}
.related-head .text h2 {
    font-size: clamp(22px, 2.6vw, 28px);
    color: var(--ink);
}
.related-head .more {
    font-size: 13px;
    color: var(--text-soft);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color .2s;
}
.related-head .more:hover { color: var(--signal); }
.rel-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}
.rel-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color .2s, transform .2s, box-shadow .2s;
}
.rel-card:hover {
    border-color: rgba(244, 81, 30, .4);
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(16, 20, 22, .09);
}
.rel-thumb {
    aspect-ratio: 16 / 10;
    background-color: #d9d4cd;
    background-size: cover;
    background-position: center;
    min-height: 130px;
}
.rel-thumb.t-01 {
    background-image: linear-gradient(0deg, rgba(16,20,22,.25), rgba(16,20,22,.05)),
        url("/assets/images/coverpic/cover-6.webp");
}
.rel-thumb.t-02 {
    background-image: linear-gradient(0deg, rgba(16,20,22,.25), rgba(16,20,22,.05)),
        url("/assets/images/coverpic/cover-7.png");
}
.rel-thumb.t-03 {
    background-image: linear-gradient(0deg, rgba(16,20,22,.25), rgba(16,20,22,.05)),
        url("/assets/images/coverpic/cover-8.png");
}
.rel-thumb.t-04 {
    background-image: linear-gradient(0deg, rgba(16,20,22,.25), rgba(16,20,22,.05)),
        url("/assets/images/coverpic/cover-9.webp");
}
.rel-cat {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--signal);
    background: rgba(244, 81, 30, .08);
    border-radius: 999px;
    padding: 2px 10px;
    align-self: flex-start;
    margin: 16px 16px 0;
}
.rel-card h3 {
    font-size: 16px;
    line-height: 1.5;
    color: var(--ink);
    margin: 10px 16px 6px;
}
.rel-card p {
    font-size: 13px;
    color: var(--text-soft);
    line-height: 1.6;
    margin: 0 16px 16px;
}
.back-archive {
    margin-top: 32px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
}
.back-archive a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-soft);
    transition: color .2s;
}
.back-archive a:hover { color: var(--signal); }

/* ========== Missing article ========== */
.missing-wrap {
    background: var(--paper);
    padding: 72px 0 100px;
}
.missing-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    max-width: 720px;
    margin: 0 auto;
    padding: clamp(30px, 5vw, 58px);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.missing-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--signal), var(--gold));
}
.missing-icon {
    width: 72px;
    height: 72px;
    display: grid;
    place-items: center;
    margin: 0 auto 22px;
    background: #FBF2EB;
    color: var(--signal);
    font-size: 28px;
    border-radius: 50%;
}
.missing-card h1 {
    font-size: 28px;
    color: var(--ink);
    margin-bottom: 14px;
}
.missing-card p {
    color: var(--text-soft);
    font-size: 15px;
    max-width: 440px;
    margin: 0 auto 28px;
}
.missing-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--ink);
    color: rgba(255, 255, 255, .62);
    margin-top: 0;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr;
    gap: 42px;
    padding: 60px 0 40px;
}
.footer-brand p.footer-desc {
    margin: 16px 0 14px;
    font-size: 14px;
    line-height: 1.8;
    max-width: 360px;
    color: rgba(255,255,255,.52);
}
.footer-safe-tips {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--gold);
    border: 1px solid rgba(233,185,73,.4);
    background: rgba(233,185,73,.07);
    padding: 5px 12px;
    border-radius: 999px;
}
.footer-col h5 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 18px;
    font-weight: 600;
}
.footer-col a {
    display: block;
    color: rgba(255, 255, 255, .54);
    font-size: 13px;
    padding: 5px 0;
    transition: color .2s, padding-left .2s;
}
.footer-col a:hover {
    color: var(--gold);
    padding-left: 5px;
}
.footer-col p {
    font-size: 13px;
    color: rgba(255, 255, 255, .48);
    line-height: 1.75;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 22px 0 26px;
    font-size: 12.5px;
    color: rgba(255, 255, 255, .4);
}
.footer-bottom span { display: inline-flex; gap: 6px; }

/* ========== Responsive ========== */
@media screen and (max-width: 1100px) {
    .header-search input { width: 190px; }
    .header-search input:focus { width: 210px; }
    .channel-menu a { margin-right: 18px; font-size: 13px; }
    .rel-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .guide-inner { grid-template-columns: 1fr; }
    .guide-actions {
        padding: 0 28px 30px;
    }
}

@media screen and (max-width: 1024px) {
    .header-search,
    .nav-tools .desktop-label {
        display: none;
    }
    .menu-burger {
        display: inline-flex;
    }
    .channel-bar {
        display: none;
    }
    .channel-tag.panel-tag { margin: 12px 16px 2px; display: inline-flex; width: fit-content; }
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 34px;
        padding: 48px 0 34px;
    }
}

@media screen and (max-width: 700px) {
    .brand-text { font-size: 16px; }
    .article-panel { padding: 24px 18px; }
    .article-hero { padding: 40px 0 70px; }
    .article-hero h1 { font-size: 27px; }
    .article-content { font-size: 15px; }
    .guide-main { padding: 28px 20px; }
    .guide-actions { padding: 0 20px 26px; flex-direction: column; }
    .btn { width: 100%; }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 44px 0 30px;
    }
    .footer-bottom {
        flex-direction: column;
    }
    .article-extras {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media screen and (max-width: 520px) {
    .nav-main { min-height: 60px; }
    .logo-glyph { width: 31px; height: 31px; font-size: 16px; }
    .brand-text { font-size: 15px; }
    .brand-text em { font-size: .83em; padding: 1px 5px; }
    .menu-burger { width: 38px; height: 38px; }
    .channel-tag { display: none; }
    .channel-menu { gap: 4px; }
    .article-hero { padding: 34px 0 62px; }
    .article-meta { gap: 8px 14px; }
    .meta-item { font-size: 12px; }
    .article-meta .meta-item.only-desktop { display: none; }
    .article-source-note { font-size: 12px; padding: 9px 12px; }
    .article-content h2 { font-size: 21px; }
    .article-content h3 { font-size: 18px; }
    .tag-line::before { display: none; }
    .tag-line a { font-size: 12px; }
    .rel-grid { grid-template-columns: 1fr; gap: 17px; }
    .rel-card { flex-direction: row; }
    .rel-thumb { flex: 0 0 38%; min-height: 118px; }
    .rel-cat { margin: 14px 14px 0; }
    .rel-card h3 { margin: 9px 14px 5px; font-size: 15px; }
    .rel-card p { margin: 0 14px 12px; font-size: 12px; }
    .back-archive { flex-direction: column; align-items: flex-start; }
    .missing-card { padding: 26px 18px; }
}

/* roulang page: category3 */
:root {
  --ink: #101416;
  --ink-soft: #1c2126;
  --signal: #F4511E;
  --signal-deep: #D84315;
  --gold: #E9B949;
  --cream: #F7F5F2;
  --card: #FFFFFF;
  --paper-warm: #FCFAF7;
  --text-main: #2B2F33;
  --text-aux: #6C6F73;
  --border-warm: #E7E1DA;
  --line-alpha: rgba(16, 20, 22, 0.10);
  --radius-lg: 8px;
  --radius-card: 10px;
  --radius-btn: 6px;
  --shadow-float: 0 22px 50px rgba(16, 20, 22, 0.08);
  --container: 1280px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: "PingFang SC", "Microsoft YaHei", Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--cream); color: var(--text-main); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font-family: inherit; font-size: 100%; }
.container { max-width: var(--container); margin: 0 auto; padding-left: 20px; padding-right: 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(16, 20, 22, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 20px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
  color: #fff;
}
.logo-glyph {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--signal);
  color: #fff; border-radius: 7px;
  font-weight: 800; font-size: 20px;
  box-shadow: 0 8px 20px rgba(244, 81, 30, 0.25);
}
.brand-text { font-size: 22px; font-weight: 800; letter-spacing: 0.01em; white-space: nowrap; }
.brand-text em { font-style: normal; color: var(--gold); }
.nav-tools {
  display: flex; align-items: center; gap: 14px;
}
.header-search {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 8px 0 14px;
  height: 40px;
}
.header-search i { color: rgba(255, 255, 255, 0.6); font-size: 14px; }
.header-search input {
  background: transparent;
  border: 0;
  color: #fff;
  min-width: 210px;
  outline: none;
  height: 38px;
}
.header-search input::placeholder { color: rgba(255, 255, 255, 0.5); }
.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 18px;
  border-radius: 6px;
  background: var(--signal);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  transition: background 0.2s, transform 0.2s;
  white-space: nowrap;
}
.nav-btn:hover { background: var(--signal-deep); transform: translateY(-1px); }
.menu-burger {
  display: none;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  width: 42px; height: 40px;
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.channel-bar {
  background: rgba(16, 20, 22, 0.72);
  border-top: 1px solid rgba(255,255,255,0.06);
}
.channel-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  gap: 30px;
}
.channel-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  padding: 6px 0;
}
.channel-menu a {
  color: rgba(255,255,255,0.78);
  font-size: 14px;
  font-weight: 500;
  padding: 4px 0;
  position: relative;
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
.channel-menu a:hover { color: #fff; }
.channel-menu a.active { color: #fff; }
.channel-menu a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--signal);
  border-radius: 2px;
}
.channel-menu a.active::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold);
}
.channel-tag {
  color: var(--gold);
  font-size: 13px;
  padding: 4px 12px;
  border: 1px solid rgba(233, 185, 73, 0.45);
  border-radius: 999px;
  white-space: nowrap;
  transition: background 0.2s;
}
.channel-tag:hover { background: rgba(233, 185, 73, 0.12); color: var(--gold); }

/* Page hero for category */
.cat-hero {
  background:
    linear-gradient(90deg, rgba(16,20,22,0.94), rgba(16,20,22,0.72)),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat,
    var(--ink);
  color: #fff;
  padding: 70px 0 76px;
  border-bottom: 2px solid var(--signal);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.64);
  margin-bottom: 28px;
}
.breadcrumb a { color: rgba(255,255,255,0.64); transition: color 0.2s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 10px; opacity: 0.5; }
.cat-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(233, 185, 73, 0.16);
  border: 1px solid rgba(233, 185, 73, 0.4);
  color: var(--gold);
  font-size: 13px;
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}
.cat-hero h1 {
  font-size: clamp(36px, 5vw, 52px);
  line-height: 1.18;
  font-weight: 800;
  margin: 0 0 18px;
  color: #fff;
  letter-spacing: -0.02em;
}
.cat-hero .hero-desc {
  font-size: 17px;
  line-height: 1.85;
  max-width: 680px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 26px;
}
.cat-hero .hero-info-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 22px;
}
.hero-metric {
  border-left: 3px solid var(--signal);
  padding-left: 15px;
  background: rgba(255,255,255,0.07);
  padding: 13px 16px;
  border-radius: 0 8px 8px 0;
  min-width: 150px;
}
.hero-metric strong { display: block; font-size: 22px; color: #fff; font-variant-numeric: tabular-nums; }
.hero-metric span { font-size: 13px; color: rgba(255,255,255,0.65); }
.hero-visual {
  min-height: 240px;
  border-radius: 12px;
  background: linear-gradient(rgba(16,20,22,0.15), rgba(16,20,22,0.38)), url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 22px;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.12);
}
.hero-visual-tag {
  font-size: 13px;
  background: rgba(16,20,22,0.58);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.16);
}
.hero-visual-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -2px;
}

/* section */
.section-block { padding: 84px 0; }
.section-block.on-tint { background: #fff; }
.section-head { margin-bottom: 38px; }
.eyebrow {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--signal);
  font-weight: 700;
  margin-bottom: 8px;
}
.section-head h2 {
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.3;
  margin: 0;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  background: var(--signal);
  border-radius: 3px;
  margin-top: 14px;
}
.section-head p.subnote {
  max-width: 720px;
  color: var(--text-aux);
  font-size: 15px;
  line-height: 1.8;
  margin-top: 14px;
}
.head-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 30px;
}
.head-row .sec-link {
  font-size: 14px;
  color: var(--signal);
  white-space: nowrap;
  font-weight: 600;
  transition: gap 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.head-row .sec-link:hover { gap: 8px; color: var(--signal-deep); }

/* feature cards */
.feature-card {
  background: #fff;
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-card);
  padding: 28px 26px;
  min-height: 100%;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  overflow: hidden;
}
.feature-card::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 0;
  background: var(--signal);
  transition: height 0.3s ease;
}
.feature-card:hover::after { height: 4px; }
.feature-card:hover { border-color: rgba(244, 81, 30, 0.4); transform: translateY(-3px); box-shadow: var(--shadow-float); }
.f-icon {
  width: 46px; height: 46px;
  border-radius: 9px;
  background: rgba(244, 81, 30, 0.12);
  color: var(--signal);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 19px; margin: 0 0 12px; font-weight: 700; color: var(--ink); }
.feature-card p { font-size: 14px; color: var(--text-aux); line-height: 1.75; margin: 0; }
.feature-link {
  display: inline-flex;
  font-size: 13px;
  color: var(--ink);
  margin-top: 16px;
  font-weight: 600;
  align-items: center;
  gap: 4px;
  transition: color 0.2s, gap 0.2s;
}
.feature-link:hover { color: var(--signal); gap: 7px; }

/* split section */
.split-img-wrap {
  background: #e9e2da;
  display: flex;
  align-items: flex-end;
  min-height: 300px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-warm);
  position: relative;
}
.split-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.scrim-text {
  position: absolute;
  left: 12px; bottom: 12px;
  color: #fff;
  font-size: 13px;
  background: rgba(16,20,22,0.68);
  padding: 5px 12px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.scene-list {
  display: grid;
  gap: 0;
  margin: 0;
}
.scene-item {
  display: flex;
  flex-direction: row;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-alpha);
  transition: background 0.2s;
  margin: 0;
}
.scene-item:hover { background: rgba(244, 81, 30, 0.04); }
.scene-item:first-child { padding-top: 0; }
.scene-item:last-child { border-bottom: 0; padding-bottom: 0; }
.scene-icon {
  width: 36px; height: 36px;
  flex: 0 0 36px;
  border-radius: 7px;
  background: var(--card);
  border: 1px solid var(--border-warm);
  color: var(--signal);
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}
.scene-content h4 { margin: 2px 0 5px; font-size: 17px; color: var(--ink); font-weight: 700; }
.scene-content p { margin: 0; font-size: 14px; color: var(--text-aux); line-height: 1.6; }

/* Numbered list style */
.numbered-section {
  background: var(--ink);
  color: #fff;
}
.numbered-section .section-head h2 { color: #fff; }
.numbered-section .section-head h2::after { background: var(--gold); }
.numbered-section .eyebrow { color: var(--gold); }
.numbered-section .section-head p.subnote { color: rgba(255,255,255,0.72); }
.numbered-stack {
  display: grid;
  grid-template-columns: 1fr;
}
.number-row {
  display: grid;
  grid-template-columns: 72px 1fr 1.2fr;
  gap: 24px;
  align-items: start;
  border-top: 1px solid rgba(255,255,255,0.14);
  padding: 28px 0;
}
.number-row:first-child { border-top: none; }
.n-num {
  font-size: 33px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px rgba(233, 185, 73, 0.85);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.number-row h3 { margin: 0 0 8px; font-size: 19px; color: #fff; font-weight: 700; }
.number-row p { margin: 0; color: rgba(255,255,255,0.65); font-size: 14px; line-height: 1.7; }
.number-panels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.panel-chip {
  font-size: 13px;
  border: 1px solid rgba(233,185,73,0.3);
  border-radius: 999px;
  padding: 5px 13px;
  color: rgba(255,255,255,0.77);
  transition: 0.2s;
  background: rgba(255,255,255,0.03);
}
.panel-chip:hover { border-color: var(--gold); color: var(--gold); }

/* highlights hot */
.hot-card {
  background: #fff;
  border: 1px solid var(--border-warm);
  border-radius: var(--radius-card);
  overflow: hidden;
  height: 100%;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
}
.hot-card:hover { transform: translateY(-4px); border-color: rgba(244,81,30,0.34); box-shadow: var(--shadow-float); }
.hot-thumb {
  height: 180px;
  position: relative;
  background: #ded9d2;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  color: #fff;
}
.hot-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.hot-card:hover .hot-thumb img { transform: scale(1.05); }
.hot-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(16,20,22,0.7) 0%, rgba(16,20,22,0.05) 55%, rgba(16,20,22,0.1) 100%);
}
.hot-thumb i.tagtype {
  position: absolute;
  z-index: 2;
  background: rgba(16,20,22,0.6);
  width: 46px; height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.17);
  backdrop-filter: blur(5px);
}
.hot-type {
  position: absolute;
  left: 14px; top: 14px;
  background: var(--signal);
  color: #fff;
  font-size: 12px;
  padding: 4px 11px;
  border-radius: 999px;
  z-index: 2;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.hot-card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.hot-card-body .hot-meta { font-size: 12px; display: flex; gap: 8px; color: var(--text-aux); align-items: center; margin-bottom: 7px; }
.hot-card-body h3 { font-size: 17px; color: var(--ink); font-weight: 700; line-height: 1.4; margin: 0 0 8px; }
.hot-card-body p { color: var(--text-aux); font-size: 13px; line-height: 1.62; margin: 0 0 14px; flex: 1; }
.hot-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-aux);
}

/* Quote cards */
.quote-card {
  background: var(--card);
  border: 1px solid var(--border-warm);
  border-top: 3px solid var(--gold);
  padding: 28px;
  height: 100%;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.quote-stars { display: flex; gap: 4px; color: var(--gold); font-size: 13px; letter-spacing: 2px; }
.quote-card p.quote-text { font-size: 15px; color: var(--text-main); line-height: 1.9; margin: 0; flex: 1; }
.quote-user { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-aux); }
.quote-user i { font-size: 8px; color: var(--signal); }

/* FAQ */
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border-warm);
  background: #fff;
  border-radius: var(--radius-card);
  padding: 0;
  margin-top: 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.faq-item:first-child { margin-top: 0; }
.faq-item:hover { border-color: rgba(244,81,30,0.32); }
.faq-q {
  padding: 20px 22px;
  cursor: pointer;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
}
.faq-q .faq-state { color: var(--signal); transition: transform 0.25s; font-size: 17px; flex-shrink: 0; }
.faq-item.open .faq-state { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}
.faq-a-inner {
  padding: 0 22px 20px;
  color: var(--text-aux);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px dashed var(--line-alpha);
  margin: 0 22px 0;
  padding-left: 0;
  padding-right: 0;
  padding-top: 14px;
}

/* CTA */
.cta-band {
  background:
    linear-gradient(100deg, rgba(244,81,30,0.2), rgba(16,20,22,0.96)),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat var(--ink);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}
.cta-band h2 { font-size: clamp(26px, 4vw, 38px); margin: 0 0 14px; font-weight: 800; }
.cta-band p { color: rgba(255,255,255,0.77); font-size: 16px; margin: 0 auto 26px; max-width: 620px; }
.cta-buttons { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: var(--radius-btn);
  min-height: 44px;
  padding: 10px 24px;
  font-weight: 700;
  font-size: 14px;
  border: 0;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.btn-primary { background: var(--signal); color: #fff; }
.btn-primary:hover { background: var(--signal-deep); transform: translateY(-1px); box-shadow: 0 12px 24px rgba(244,81,30,0.24); }
.btn-primary:active { transform: translateY(1px); }
.btn-solid-dark { background: var(--ink); color: #fff; }
.btn-solid-dark:hover { background: var(--ink-soft); transform: translateY(-1px); }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--cream); transform: translateY(-1px); }
.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.34);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.08); border-color: var(--gold); color: var(--gold); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--border-warm); }
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.72);
  padding-top: 56px;
  font-size: 14px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.2fr;
  gap: 40px;
  padding-bottom: 42px;
}
.footer-brand .brand-logo { color: #fff; }
.footer-brand p.footer-desc { margin: 16px 0 12px; color: rgba(255,255,255,0.6); line-height: 1.8; max-width: 410px; }
.footer-safe-tips {
  display: inline-flex;
  font-size: 13px;
  color: rgba(255,255,255,0.68);
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,0.11);
  border-radius: 7px;
  background: rgba(255,255,255,0.03);
}
.footer-safe-tips i { color: var(--gold); }
.footer-col h5 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  padding: 5px 0;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
}
.cms-note { display: none; }

/* focus */
:focus-visible {
  outline: 3px solid rgba(244, 81, 30, 0.28);
  outline-offset: 2px;
}

/* Responsive */
@media (max-width: 920px) {
  .footer-top { grid-template-columns: 1fr; gap: 26px; }
  .number-row { grid-template-columns: 54px 1fr; gap: 12px 18px; }
  .number-panels { grid-column: 2; }
  .line3 { display: none; }
}

@media (max-width: 1024px) {
  .nav-tools .desktop-label span { display: none; }
  .header-search input { min-width: 130px; width: 100%; }
  .header-search { flex: 1; }
  .channel-menu { gap: 22px; overflow-x: auto; flex-wrap: nowrap; } 
  .channel-tag { display: none; }
  .cat-hero .hero-visual { min-height: 180px; }
}
@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
  .menu-burger { display: inline-flex; }
  .header-search { display: none; }
  .nav-btn { margin-left: auto; }
  .nav-main { min-height: 58px; }
  .brand-text { font-size: 18px; }
  .channel-bar-inner { min-height: 0; padding: 0; }
  .channel-menu { padding: 0 8px; min-height: 46px; gap: 8px; }

  .channel-menu a { font-size: 13px; gap: 4px; padding: 8px 10px; white-space: nowrap; }
  .section-block { padding: 58px 0; }
  .section-head { margin-bottom: 26px; }
  .cat-hero { padding: 46px 0 50px; }
  .hero-visual { display: none; }
  .footer-bottom { flex-direction: column; }
  .scene-item { padding-left: 6px; padding-right: 6px; }
  .number-row { grid-template-columns: 1fr; gap: 10px; padding: 22px 0; }
  .number-panels { grid-column: 1; }
  .mobile-toolbar {
    display: flex;
    align-items: center;
    width: 100%;
    margin: 10px 0 12px;
  }
  .menu-burger.toggle-nav { margin-left: 0; }
}
@media (max-width: 520px) {
  .navbar .nav-inner { flex-wrap: wrap; }
  .header-search { width: 100%; order: 4; }
  .brand-text em { display: none; }
  .nav-tools .nav-btn { padding: 0 12px; }
}

/* roulang page: category2 */
:root {
      --ink: #101416;
      --ink-2: #171d20;
      --ink-3: #20272b;
      --bg-body: #f7f5f2;
      --bg-section: #fff;
      --card: #fff;
      --signal: #f4511e;
      --signal-dark: #d84315;
      --gold: #e9b949;
      --text: #22262a;
      --text-weak: #687078;
      --line: #e8e0d6;
      --line-soft: rgba(255, 255, 255, .1);
      --radius-lg: 16px;
      --radius-md: 10px;
      --radius-sm: 6px;
      --shadow-card: 0 14px 32px rgba(20, 22, 24, .06);
      --space-section: 88px;
      font-synthesis: none;
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      margin: 0;
      background: var(--bg-body);
      color: var(--text);
      font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Inter, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body.no-scroll {
      overflow: hidden;
    }

    h1, h2, h3, h4, h5, h6, p, figure {
      margin: 0 0 12px 0;
    }

    h1, h2, h3 {
      line-height: 1.3;
      color: #1b2024;
      font-weight: 700;
    }

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

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background .2s ease;
    }

    button {
      font-family: inherit;
      border: 0;
      background: none;
      cursor: pointer;
    }

    input {
      font-family: inherit;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    details summary:focus-visible {
      outline: 3px solid rgba(244, 81, 30, .25);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .grid-container {
      max-width: 1280px;
      padding-right: clamp(16px, 3vw, 32px);
      padding-left: clamp(16px, 3vw, 32px);
      margin-right: auto;
      margin-left: auto;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding-right: clamp(16px, 3vw, 32px);
      padding-left: clamp(16px, 3vw, 32px);
    }

    /* ---------- 顶部导航 ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(14, 18, 20, .94);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .nav-main {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 72px;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      white-space: nowrap;
    }

    .logo-glyph {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: var(--signal);
      color: #fff;
      font-size: 20px;
      font-weight: 800;
      line-height: 1;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .2);
    }

    .brand-text {
      color: #fff;
      font-size: 21px;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .brand-text em {
      color: var(--gold);
      font-style: normal;
      font-weight: 700;
    }

    .nav-tools {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .header-search {
      display: flex;
      align-items: center;
      width: 248px;
      height: 40px;
      padding: 0 14px;
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 999px;
      background: rgba(255, 255, 255, .08);
      color: rgba(255, 255, 255, .55);
      transition: border-color .2s ease, background .2s ease;
    }

    .header-search:focus-within {
      border-color: rgba(244, 81, 30, .7);
      background: rgba(255, 255, 255, .12);
    }

    .header-search input {
      width: 100%;
      margin-left: 9px;
      background: transparent;
      border: 0;
      outline: none;
      color: #fff;
      font-size: 14px;
    }

    .header-search input::placeholder {
      color: rgba(255, 255, 255, .45);
    }

    .nav-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 40px;
      padding: 0 16px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 999px;
      color: rgba(255, 255, 255, .85);
      font-size: 14px;
      font-weight: 500;
      transition: border-color .2s, color .2s, background .2s;
    }

    .nav-btn i {
      color: var(--gold);
    }

    .nav-btn:hover {
      color: #fff;
      border-color: rgba(244, 81, 30, .7);
      background: rgba(244, 81, 30, .1);
    }

    .menu-burger {
      display: none;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 10px;
      color: #fff;
      font-size: 17px;
      background: transparent;
      transition: background .2s, border-color .2s;
    }

    .menu-burger:hover {
      background: rgba(255, 255, 255, .08);
      border-color: rgba(244, 81, 30, .6);
    }

    .channel-bar {
      background: rgba(8, 11, 13, .55);
      border-top: 1px solid rgba(255, 255, 255, .06);
    }

    .channel-bar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      min-height: 45px;
    }

    .channel-menu {
      display: flex;
      align-items: stretch;
      gap: 4px;
    }

    .channel-menu a {
      position: relative;
      display: inline-flex;
      align-items: center;
      padding: 0 14px;
      color: rgba(255, 255, 255, .72);
      font-size: 14px;
      font-weight: 500;
      border-radius: 6px;
    }

    .channel-menu a::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 7px;
      transform: translateX(-50%);
      width: 18px;
      height: 3px;
      border-radius: 3px;
      background: var(--signal);
      opacity: 0;
      transition: opacity .2s ease, width .2s ease;
    }

    .channel-menu a:hover,
    .channel-menu a.active {
      color: #fff;
    }

    .channel-menu a.active::after {
      opacity: 1;
      width: 22px;
    }

    .channel-tag {
      display: inline-flex;
      align-items: center;
      color: var(--gold);
      font-size: 13px;
      font-weight: 500;
      white-space: nowrap;
      gap: 2px;
    }

    .channel-tag:hover {
      color: #fff;
    }

    /* ---------- 页脚 ---------- */
    .site-footer {
      background: #121719;
      color: rgba(255, 255, 255, .72);
      border-top: 3px solid rgba(244, 81, 30, .65);
      padding: 64px 0 0;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr .9fr 1.2fr;
      gap: 52px;
      padding-bottom: 38px;
    }

    .footer-brand .brand-logo {
      margin-bottom: 8px;
      gap: 10px;
    }

    .footer-brand .brand-text {
      font-size: 20px;
    }

    .footer-desc {
      max-width: 340px;
      margin: 0 0 14px;
      color: rgba(255, 255, 255, .62);
      font-size: 14px;
      line-height: 1.85;
    }

    .footer-safe-tips {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: rgba(233, 185, 73, .9);
      font-size: 13px;
    }

    .footer-col h5 {
      margin: 0 0 18px;
      color: #fff;
      font-size: 15px;
      font-weight: 700;
    }

    .footer-col a {
      display: block;
      width: fit-content;
      color: rgba(255, 255, 255, .7);
      padding: 3px 0;
      font-size: 14px;
    }

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

    .footer-col p {
      color: rgba(255, 255, 255, .5);
      font-size: 13px;
      line-height: 1.8;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 12px 24px;
      flex-wrap: wrap;
      padding: 18px 0;
      border-top: 1px solid rgba(255, 255, 255, .1);
      color: rgba(255, 255, 255, .48);
      font-size: 13px;
    }

    /* ---------- 通用区块 ---------- */
    .section {
      padding: var(--space-section) 0;
    }

    .section-light {
      background: var(--bg-section);
    }

    .section-alt {
      background: #f0ece6;
    }

    .section-dark {
      background: #101416;
      color: rgba(255, 255, 255, .78);
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 24px;
      margin-bottom: 34px;
    }

    .section-head h2,
    .access-intro h2,
    .check-copy h2 {
      margin: 8px 0 0;
      font-size: clamp(25px, 3vw, 33px);
      line-height: 1.25;
    }

    .section-head-note {
      max-width: 430px;
      margin-bottom: 0;
      color: var(--text-weak);
      font-size: 15px;
      line-height: 1.8;
      text-align: right;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--signal);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .12em;
      text-transform: uppercase;
    }

    .eyebrow::before {
      content: "";
      width: 22px;
      height: 2px;
      border-radius: 2px;
      background: var(--signal);
    }

    .section-dark .eyebrow {
      color: var(--gold);
    }

    .section-dark .section-title {
      color: #fff;
    }

    /* ---------- 按钮 ---------- */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 44px;
      padding: 0 24px;
      border: 1px solid transparent;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      transition: background .2s, border-color .2s, color .2s, transform .2s, box-shadow .2s;
    }

    .btn-primary {
      background: var(--signal);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--signal-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(244, 81, 30, .22);
    }

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

    .btn-ghost {
      background: transparent;
      border-color: rgba(255, 255, 255, .5);
      color: #fff;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, .1);
      border-color: rgba(233, 185, 73, .8);
      color: var(--gold);
      transform: translateY(-2px);
    }

    .btn-dark {
      background: var(--ink-3);
      color: #fff;
    }

    .btn-dark:hover {
      background: #2c343a;
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-mid {
      min-height: 40px;
      padding: 0 18px;
      font-size: 14px;
    }

    .text-arrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--signal);
      font-size: 14px;
      font-weight: 600;
    }

    .text-arrow i {
      transition: transform .2s;
    }

    .text-arrow:hover i {
      transform: translateX(4px);
    }

    .text-arrow-muted {
      color: rgba(255, 255, 255, .72);
    }

    /* ---------- 分类页 HERO ---------- */
    .cat-hero {
      position: relative;
      padding: 54px 0 68px;
      color: #f6f3ef;
      background:
        linear-gradient(115deg, rgba(14, 18, 20, .98) 10%, rgba(16, 20, 22, .88) 45%, rgba(36, 28, 26, .78) 100%),
        linear-gradient(0deg, rgba(244, 81, 30, .18), rgba(244, 81, 30, .05)),
        url('/assets/images/backpic/back-1.png') center / cover no-repeat;
      border-bottom: 3px solid rgba(244, 81, 30, .6);
      overflow: hidden;
    }

    .cat-hero::after {
      content: "";
      display: block;
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--signal) 0%, var(--gold) 100%);
      opacity: .85;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      padding-bottom: 30px;
      color: rgba(255, 255, 255, .55);
      font-size: 13px;
    }

    .breadcrumb a {
      color: rgba(255, 255, 255, .72);
    }

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

    .hero-copy {
      padding: 12px 0 6px;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 13px;
      border: 1px solid rgba(233, 185, 73, .45);
      border-radius: 999px;
      color: var(--gold);
      font-size: 13px;
      font-weight: 500;
      background: rgba(233, 185, 73, .08);
    }

    .hero-kicker::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--signal);
    }

    .cat-hero h1 {
      max-width: 720px;
      margin: 18px 0 14px;
      color: #fff;
      font-size: clamp(34px, 4.2vw, 58px);
      line-height: 1.16;
      letter-spacing: -.02em;
    }

    .cat-hero h1 .h1-accent {
      color: var(--gold);
      font-style: normal;
    }

    .hero-lead {
      max-width: 650px;
      color: rgba(255, 255, 255, .72);
      font-size: 17px;
      line-height: 1.85;
      margin-bottom: 26px;
    }

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

    .hero-note {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      margin: 18px 0 0;
      color: rgba(255, 255, 255, .5);
      font-size: 13px;
    }

    .hero-note i {
      color: var(--gold);
    }

    .hero-visual {
      padding: 18px 0 0 42px;
    }

    .hero-shot {
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 18px;
      padding: 10px 10px 0;
      box-shadow: 0 24px 50px rgba(0, 0, 0, .22);
      backdrop-filter: blur(6px);
      overflow: hidden;
    }

    .shot-bar {
      display: flex;
      align-items: center;
      gap: 7px;
      padding: 0 4px 10px;
    }

    .shot-bar span {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .25);
    }

    .shot-bar span:first-child {
      background: rgba(244, 81, 30, .8);
    }

    .shot-bar span:nth-child(2) {
      background: rgba(233, 185, 73, .9);
    }

    .hero-shot img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      border-radius: 12px 12px 0 0;
      background: #2d3338;
    }

    .shot-caption {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 12px 4px;
      color: rgba(255, 255, 255, .68);
      font-size: 13px;
    }

    .shot-caption i {
      color: var(--gold);
    }

    /* ---------- 下载前确认 ---------- */
    .section-download-check {
      padding-top: 88px;
    }

    .pre-card-row,
    .faq-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pre-card {
      position: relative;
      height: 100%;
      padding: 30px 26px 26px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color .2s, box-shadow .2s, transform .2s;
    }

    .pre-card::before {
      content: "";
      display: block;
      width: 100%;
      height: 3px;
      background: var(--signal);
      opacity: .6;
      border-radius: 0 0 3px 3px;
    }

    .pre-card--brand {
      background: #1a2023;
      border-color: #232b30;
      color: rgba(255, 255, 255, .76);
      box-shadow: var(--shadow-card);
    }

    .pre-card--brand::before {
      background: var(--gold);
    }

    .pre-card--brand h3 {
      color: #fff;
    }

    .pre-card--brand p {
      color: rgba(255, 255, 255, .65);
    }

    .pre-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      margin: 22px 0 16px;
      border-radius: 14px;
      background: rgba(244, 81, 30, .1);
      color: var(--signal);
      font-size: 19px;
    }

    .pre-card--brand .pre-icon {
      background: rgba(233, 185, 73, .16);
      color: var(--gold);
    }

    .pre-card h3 {
      margin-bottom: 10px;
      font-size: 19px;
    }

    .pre-card p {
      margin-bottom: 0;
      color: var(--text-weak);
      font-size: 15px;
    }

    .pre-card--brand p {
      color: rgba(255, 255, 255, .62);
    }

    .pre-card:hover {
      border-color: rgba(244, 81, 30, .45);
      transform: translateY(-3px);
      box-shadow: var(--shadow-card);
    }

    /* ---------- 获取方式 ---------- */
    .access-way {
      background: #efeae3;
    }

    .access-intro {
      padding-right: 30px;
    }

    .access-intro > p {
      margin: 20px 0 24px;
      color: var(--text-weak);
      font-size: 16px;
      line-height: 1.9;
    }

    .access-notice {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-top: 22px;
      padding: 14px 16px;
      border-left: 3px solid var(--gold);
      background: rgba(233, 185, 73, .1);
      color: #5f5546;
      font-size: 14px;
      line-height: 1.75;
      border-radius: 0 8px 8px 0;
    }

    .access-list {
      display: flex;
      flex-direction: column;
    }

    .access-item {
      display: grid;
      grid-template-columns: 54px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 22px 4px 22px 0;
      border-bottom: 1px solid rgba(0, 0, 0, .08);
      transition: padding-left .2s;
    }

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

    .access-item:hover {
      padding-left: 8px;
    }

    .access-index {
      color: var(--signal);
      font-size: 22px;
      font-weight: 800;
      font-variant-numeric: tabular-nums;
      opacity: .9;
    }

    .access-item h3 {
      margin-bottom: 4px;
      font-size: 17px;
    }

    .access-item p {
      margin-bottom: 0;
      color: var(--text-weak);
      font-size: 14px;
      line-height: 1.75;
    }

    .use-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 28px;
      padding: 4px 11px;
      border: 1px solid rgba(244, 81, 30, .24);
      border-radius: 999px;
      background: rgba(244, 81, 30, .06);
      color: var(--signal-dark);
      font-size: 12px;
      font-weight: 600;
      white-space: nowrap;
    }

    /* ---------- 安装流程 ---------- */
    .install-steps {
      background: linear-gradient(160deg, #0f1214 0%, #171c1f 100%);
    }

    .install-steps .section-head-note {
      color: rgba(255, 255, 255, .52);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .step-card {
      position: relative;
      height: 100%;
      padding: 28px 24px 24px;
      border: 1px solid rgba(255, 255, 255, .1);
      border-radius: 12px;
      background: rgba(255, 255, 255, .05);
      overflow: hidden;
    }

    .step-card::before {
      content: "";
      display: block;
      width: 30px;
      height: 3px;
      margin-bottom: 24px;
      border-radius: 4px;
      background: var(--signal);
    }

    .step-card:nth-child(2)::before {
      background: var(--gold);
    }

    .step-card .step-num {
      display: block;
      margin-bottom: 12px;
      color: rgba(255, 255, 255, .28);
      font-size: 30px;
      font-weight: 800;
      line-height: 1;
      font-variant-numeric: tabular-nums;
      letter-spacing: .04em;
    }

    .step-card h3 {
      margin-bottom: 9px;
      color: #fff;
      font-size: 18px;
    }

    .step-card p {
      margin-bottom: 0;
      color: rgba(255, 255, 255, .62);
      font-size: 14px;
      line-height: 1.75;
    }

    .step-card:hover {
      border-color: rgba(244, 81, 30, .5);
      background: rgba(255, 255, 255, .08);
    }

    /* ---------- 自查清单 ---------- */
    .check-section {
      background: var(--bg-body);
    }

    .check-wrap {
      display: grid;
      grid-template-columns: .88fr 1.12fr;
      gap: 30px 72px;
      align-items: center;
      padding: 42px 30px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
    }

    .check-copy p {
      color: var(--text-weak);
      font-size: 15px;
      line-height: 1.9;
      margin: 18px 0 22px;
    }

    .check-panel {
      background: #f7f2eb;
      border-radius: 14px;
      padding: 22px 26px;
    }

    .check-items {
      display: grid;
      grid-template-columns: 1fr;
      gap: 6px;
    }

    .check-items li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 7px 0;
      color: #4d5257;
      font-size: 15px;
    }

    .check-items li span {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 18px;
      width: 18px;
      height: 18px;
      margin-top: 5px;
      border-radius: 50%;
      background: var(--gold);
      color: #20190c;
      font-size: 11px;
    }

    /* ---------- 延伸阅读 ---------- */
    .related-section {
      background: #fff;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .related-card {
      display: flex;
      flex-direction: column;
      height: 100%;
      background: var(--bg-body);
      border: 1px solid var(--line);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color .2s, box-shadow .2s, transform .2s;
    }

    .related-card:hover {
      border-color: rgba(244, 81, 30, .5);
      transform: translateY(-3px);
      box-shadow: var(--shadow-card);
    }

    .related-thumb {
      position: relative;
      background: #d7d1c8;
    }

    .related-thumb img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      background: #d7d1c8;
    }

    .related-tag {
      position: absolute;
      left: 12px;
      top: 12px;
      display: inline-flex;
      align-items: center;
      padding: 5px 11px;
      border-radius: 999px;
      background: rgba(16, 20, 22, .82);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      backdrop-filter: blur(4px);
    }

    .related-body {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      padding: 20px 20px 18px;
    }

    .related-body h3 {
      margin: 4px 0 8px;
      font-size: 17px;
      line-height: 1.45;
    }

    .related-body p {
      margin-bottom: 16px;
      color: var(--text-weak);
      font-size: 14px;
      line-height: 1.75;
    }

    .related-body .text-arrow {
      margin-top: auto;
    }

    /* ---------- FAQ ---------- */
    .faq-section {
      background: #f2eee8;
    }

    .faq-container {
      max-width: 1000px;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 0 22px;
      transition: border-color .2s, box-shadow .2s;
    }

    .faq-item[open] {
      border-color: rgba(244, 81, 30, .35);
      box-shadow: 0 8px 22px rgba(20, 22, 24, .04);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      gap: 14px;
      list-style: none;
      padding: 17px 0;
      cursor: pointer;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-q {
      flex: 1;
      color: #1d242a;
      font-size: 16px;
      font-weight: 600;
      line-height: 1.6;
    }

    .faq-q-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 26px;
      height: 26px;
      border-radius: 8px;
      background: rgba(244, 81, 30, .1);
      color: var(--signal);
      font-size: 13px;
      font-weight: 800;
    }

    .faq-item summary i {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-left: auto;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: rgba(244, 81, 30, .08);
      color: var(--signal);
      font-size: 13px;
      font-weight: 700;
      transition: transform .25s, background .2s, color .2s;
    }

    .faq-item[open] summary i {
      transform: rotate(45deg);
      background: var(--signal);
      color: #fff;
    }

    .faq-content {
      border-top: 1px dashed rgba(0, 0, 0, .08);
      padding: 15px 0 19px 40px;
    }

    .faq-content p {
      margin-bottom: 0;
      color: var(--text-weak);
      font-size: 15px;
      line-height: 1.9;
    }

    /* ---------- CTA ---------- */
    .cta-section {
      position: relative;
      padding: 90px 0;
      background:
        linear-gradient(120deg, rgba(14, 18, 20, .97), rgba(20, 22, 24, .9)),
        url('/assets/images/backpic/back-2.png') center / cover no-repeat;
      border-top: 1px solid rgba(255, 255, 255, .08);
      text-align: center;
      color: rgba(255, 255, 255, .8);
    }

    .cta-inner h2 {
      margin: 14px 0 12px;
      color: #fff;
      font-size: clamp(27px, 3.6vw, 42px);
      line-height: 1.3;
    }

    .cta-inner .cta-desc {
      max-width: 620px;
      margin: 0 auto 30px;
      color: rgba(255, 255, 255, .62);
      font-size: 16px;
      line-height: 1.9;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .cta-safe {
      display: block;
      margin-top: 20px;
      color: rgba(255, 255, 255, .42);
      font-size: 13px;
    }

    /* ---------- 响应式 ---------- */
    @media (max-width: 1100px) {
      .hero-visual {
        padding-left: 0;
      }

      .access-item {
        grid-template-columns: 44px 1fr;
      }

      .use-badge {
        grid-column: 2;
        justify-self: start;
        margin-top: 4px;
      }
    }

    @media (max-width: 1024px) {
      :root {
        --space-section: 60px;
      }

      .desktop-label {
        display: none;
      }

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

      .channel-bar {
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s ease;
      }

      .site-header.nav-open .channel-bar {
        max-height: 470px;
        overflow-y: auto;
      }

      .channel-bar-inner {
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 8px;
        padding: 16px 0 22px;
      }

      .channel-menu {
        flex-direction: column;
        width: 100%;
        gap: 2px;
      }

      .channel-menu a {
        min-height: 42px;
        padding: 0 12px;
        border-radius: 8px;
      }

      .channel-menu a::after {
        left: 12px;
        transform: none;
        bottom: 8px;
        width: 20px;
      }

      .channel-tag {
        margin-left: 12px;
        padding-top: 4px;
      }

      .pre-card-row,
      .faq-row {
        grid-template-columns: repeat(2, 1fr);
      }

      .faq-row {
        row-gap: 16px;
      }

      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
      }

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

      .check-wrap {
        grid-template-columns: 1fr;
        gap: 26px;
        padding: 34px 26px;
      }
    }

    @media (max-width: 767px) {
      :root {
        --space-section: 50px;
      }

      .nav-main {
        min-height: 62px;
        gap: 8px;
      }

      .logo-glyph {
        width: 34px;
        height: 34px;
        border-radius: 9px;
        font-size: 18px;
      }

      .brand-text {
        font-size: 18px;
      }

      .nav-tools {
        gap: 8px;
      }

      .header-search {
        width: 100%;
        max-width: 46vw;
      }

      .header-search input {
        font-size: 13px;
      }

      .header-search i {
        font-size: 13px;
      }

      .menu-burger {
        width: 38px;
        height: 38px;
      }

      .cat-hero {
        padding: 40px 0 52px;
      }

      .breadcrumb {
        padding-bottom: 20px;
      }

      .cat-hero h1 {
        font-size: 31px;
      }

      .hero-lead {
        font-size: 15px;
      }

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

      .hero-visual {
        padding-top: 28px;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 26px;
      }

      .section-head-note {
        text-align: left;
      }

      .pre-card-row,
      .steps-grid,
      .related-grid {
        grid-template-columns: 1fr;
      }

      .pre-card {
        height: auto;
      }

      .access-intro {
        padding-right: 0;
      }

      .access-item {
        grid-template-columns: 38px 1fr;
        gap: 12px;
      }

      .access-index {
        font-size: 18px;
      }

      .use-badge {
        margin-left: 50px;
        margin-top: 0;
      }

      .access-item p {
        font-size: 14px;
      }

      .check-wrap {
        padding: 76px 18px 18px;
      }

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

      .check-items li {
        font-size: 14px;
      }

      .faq-list {
        gap: 10px;
      }

      .faq-item {
        padding: 0 16px;
      }

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

      .faq-content {
        padding-left: 40px;
      }

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

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

      .cta-section {
        padding: 60px 0;
      }

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

    @media (max-width: 480px) {
      .brand-text em {
        font-size: .86em;
      }

      .nav-main {
        gap: 4px;
      }

      .nav-tools {
        gap: 6px;
      }

      .header-search {
        padding: 0 10px;
        min-width: 0;
      }

      .header-search input {
        min-width: 0;
      }

      .nav-main {
        flex-wrap: nowrap;
      }

      .access-list {
        border-top: 1px solid rgba(0, 0, 0, .08);
      }

      .use-badge {
        margin-left: 0;
        grid-column: 1 / -1;
        width: fit-content;
      }
    }