/* roulang page: index */
:root{
  --c-primary:#2F6FED;
  --c-primary-dark:#1E56C8;
  --c-primary-soft:#EAF1FE;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFF1EB;
  --c-mint:#12B886;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E4E9F2;
  --c-text:#0E1726;
  --c-text-2:#4A5568;
  --c-text-3:#8A94A6;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:24px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px -8px rgba(16,32,64,.12);
  --sh-3:0 18px 48px -16px rgba(16,32,64,.18);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 40px;}}

.section{padding:56px 0;}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-title{font-size:26px;line-height:1.3;font-weight:700;letter-spacing:-.3px;}
@media(min-width:1024px){.section-title{font-size:32px;}}
.section-desc{color:var(--c-text-2);font-size:15px;max-width:720px;margin-top:10px;}
.more-link{color:var(--c-primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.more-link:hover{color:var(--c-primary-dark);gap:10px;}
.more-link i{font-size:12px;transition:transform .2s ease;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:height .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease;
  backdrop-filter:saturate(140%) blur(10px);
}
.site-header .nav-inner{height:var(--nav-h);display:flex;align-items:center;gap:18px;transition:height .22s ease;}
.site-header.is-stuck{height:56px;background:rgba(255,255,255,.92);border-bottom-color:var(--c-line);box-shadow:0 6px 20px -16px rgba(16,32,64,.35);}
.site-header.is-stuck .nav-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.5px;box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-cn{font-size:16px;font-weight:700;letter-spacing:.2px;}
.brand-en{font-size:11px;color:var(--c-text-3);letter-spacing:1.4px;text-transform:uppercase;}
.channels{display:none;align-items:center;gap:4px;margin-left:10px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;padding:8px 12px;font-size:14px;color:var(--c-text-2);
  border-radius:var(--r-sm);white-space:nowrap;transition:color .18s ease,background .18s ease;
}
.channel:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-tools{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--c-text-2);background:transparent;transition:background .18s ease,color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.icon-btn:active{transform:scale(.96);}
.search-wrap{position:relative;display:none;}
.search-input{
  width:280px;height:40px;border-radius:999px;border:1px solid transparent;background:var(--c-bg);
  padding:0 40px 0 16px;font-size:14px;color:var(--c-text);transition:border-color .18s ease,background .18s ease,width .2s ease;
}
.search-input::placeholder{color:var(--c-text-3);}
.search-input:focus{border-color:var(--c-primary);background:#fff;}
.search-wrap .search-go{position:absolute;right:4px;top:4px;width:32px;height:32px;border-radius:50%;color:var(--c-text-3);display:flex;align-items:center;justify-content:center;font-size:13px;}
.search-wrap .search-go:hover{color:var(--c-primary);}
.search-mobile{display:none;padding:0 16px 14px;}
.search-mobile.is-open{display:block;}
.trend-panel{
  position:absolute;top:calc(100% + 8px);right:0;width:320px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:18px;display:none;
}
.trend-panel.is-open{display:block;}
.trend-panel h4{font-size:13px;color:var(--c-text-3);font-weight:600;letter-spacing:.4px;margin-bottom:12px;}
.pill-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  background:var(--c-bg);color:var(--c-text-2);font-size:13px;line-height:1.5;transition:all .18s ease;border:1px solid transparent;
}
.pill:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#D3E1FD;}
.pill.is-hot{background:var(--c-accent-soft);color:#D9541F;}
.pill.is-hot:hover{background:#FFE3D7;color:#B84517;}
.burger{display:flex;}
@media(min-width:1024px){
  .channels{display:flex;}
  .search-wrap{display:block;}
  .burger{display:none;}
  .trend-panel{right:0;}
}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,23,38,.45);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;
  box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--c-line);}
.drawer-body{padding:18px;overflow-y:auto;flex:1;}
.drawer-label{font-size:12px;letter-spacing:1px;color:var(--c-text-3);font-weight:600;margin:16px 0 10px;text-transform:uppercase;}
.drawer-label:first-child{margin-top:0;}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:var(--r-md);color:var(--c-text-2);font-size:15px;transition:background .18s ease,color .18s ease;}
.drawer-link:hover{background:var(--c-bg);color:var(--c-primary);}
.drawer-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.drawer-foot{padding:16px 18px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .16s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(47,111,237,.9);}
.btn-primary:hover{background:#2A64D6;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(47,111,237,.95);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -14px rgba(255,122,69,.95);}
.btn-accent:hover{background:#F06E3A;transform:translateY(-1px);}
.btn-outline{border-color:var(--c-line);color:var(--c-accent);background:#fff;}
.btn-outline:hover{border-color:#FFD3C0;background:var(--c-accent-soft);transform:translateY(-1px);}
.btn-ghost{border-color:var(--c-line);color:var(--c-text-2);background:#fff;}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#F6F8FC 100%);}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,111,237,.14),rgba(47,111,237,0) 68%);pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:48px;padding:44px 0 56px;align-items:center;}
@media(min-width:1024px){
  .hero-inner{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:56px;padding:72px 0 88px;}
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--c-mint);box-shadow:0 0 0 3px rgba(18,184,134,.16);}
.hero h1{
  font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.6px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{margin-top:18px;font-size:16px;color:var(--c-text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:32px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line);}
.metric-num{font-size:24px;font-weight:700;color:var(--c-text);letter-spacing:-.4px;}
.metric-num span{font-size:14px;color:var(--c-primary);margin-left:2px;}
.metric-label{font-size:13px;color:var(--c-text-3);margin-top:2px;}

.hero-media{display:flex;justify-content:center;position:relative;}
.phone-card{
  position:relative;width:100%;max-width:328px;aspect-ratio:9/16;border-radius:var(--r-xl);overflow:hidden;
  background:#E9EEF9;box-shadow:var(--sh-3);transform:rotate(-2deg);
}
.phone-card img{width:100%;height:100%;object-fit:cover;}
.phone-card::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,23,38,0) 42%,rgba(14,23,38,.72) 100%);
}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:50%;
  background:rgba(255,255,255,.92);color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-size:20px;box-shadow:var(--sh-2);z-index:2;padding-left:4px;
}
.phone-caption{position:absolute;left:20px;right:20px;bottom:22px;color:#fff;z-index:2;}
.phone-caption h3{font-size:16px;font-weight:600;line-height:1.5;text-shadow:0 2px 10px rgba(0,0,0,.35);}
.phone-caption p{font-size:12px;opacity:.86;margin-top:6px;}
.phone-bar{height:3px;border-radius:3px;background:rgba(255,255,255,.32);margin-top:12px;overflow:hidden;}
.phone-bar i{display:block;height:100%;width:62%;background:var(--c-accent);border-radius:3px;}
.phone-time{
  position:absolute;right:16px;top:16px;z-index:2;padding:4px 10px;border-radius:999px;
  background:rgba(14,23,38,.55);color:#fff;font-size:12px;backdrop-filter:blur(4px);
}
.float-chip{
  position:absolute;left:-8px;bottom:64px;z-index:3;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:10px 14px;box-shadow:var(--sh-2);font-size:12px;color:var(--c-text-2);display:none;
}
.float-chip strong{display:block;font-size:15px;color:var(--c-text);font-weight:700;}
@media(min-width:768px){.float-chip{display:block;}}

/* ---------- horizontal reels ---------- */
.reels-wrap{position:relative;}
.reels{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;
  scrollbar-width:none;
}
.reels::-webkit-scrollbar{display:none;}
.reel-card{
  flex:0 0 78%;max-width:280px;scroll-snap-align:start;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
@media(min-width:640px){.reel-card{flex:0 0 46%;}}
@media(min-width:1024px){.reel-card{flex:0 0 25%;}}
.reel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.reel-thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:#EDF1F8;}
.reel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.reel-card:hover .reel-thumb img{transform:scale(1.03);}
.reel-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.9);color:var(--c-accent);display:flex;align-items:center;justify-content:center;font-size:14px;padding-left:3px;
}
.reel-badge{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:999px;background:var(--c-accent);color:#fff;font-size:11px;font-weight:600;
}
.reel-body{padding:14px 16px 16px;}
.reel-body h3{font-size:15px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px;}
.reel-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:12px;font-size:12px;color:var(--c-text-3);}
.chip{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:var(--c-primary-soft);
  color:var(--c-primary);font-size:12px;font-weight:600;line-height:1.6;
}
.chip-mint{background:rgba(18,184,134,.1);color:#0E9C72;}
.chip-accent{background:var(--c-accent-soft);color:#D9541F;}
.arrow-btn{
  width:42px;height:42px;border-radius:50%;background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);
  display:none;align-items:center;justify-content:center;box-shadow:var(--sh-1);transition:all .18s ease;
}
.arrow-btn:hover{color:var(--c-primary);border-color:#C9D9FB;box-shadow:var(--sh-2);}
@media(min-width:1024px){.arrow-btn{display:flex;}}
.reels-nav{display:none;gap:10px;}
@media(min-width:1024px){.reels-nav{display:flex;}}

/* ---------- ranked list ---------- */
.rank-grid{display:grid;grid-template-columns:1fr;gap:0;}
@media(min-width:1024px){.rank-grid{grid-template-columns:1fr 1fr;gap:0 40px;align-items:start;}}
.rank-col{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
@media(min-width:1024px){.rank-col.offset{margin-top:24px;}}
.rank-item{display:flex;gap:18px;padding:22px;border-bottom:1px solid var(--c-line);transition:background .18s ease;}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{background:#FBFCFE;}
.rank-no{
  flex:0 0 auto;font-size:44px;line-height:1;font-weight:700;color:rgba(47,111,237,.16);
  letter-spacing:-2px;min-width:56px;
}
.rank-item:nth-child(1) .rank-no{color:rgba(255,122,69,.55);}
.rank-main{min-width:0;flex:1;}
.rank-main h3{font-size:17px;font-weight:600;line-height:1.55;}
.rank-main p{margin-top:8px;font-size:14px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rank-foot{display:flex;align-items:center;gap:14px;margin-top:14px;flex-wrap:wrap;}
.thumb-80{width:80px;height:80px;border-radius:12px;object-fit:cover;flex:0 0 auto;background:#EDF1F8;}
@media(max-width:520px){.thumb-80{width:64px;height:64px;}}

/* ---------- reviews ---------- */
.reviews-band{background:#F1F5FB;}
.review-row{display:flex;gap:16px;overflow-x:auto;padding:4px 4px 14px;scroll-snap-type:x proximity;scrollbar-width:none;}
.review-row::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 86%;max-width:340px;scroll-snap-align:start;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1);
}
@media(min-width:768px){.review-card{flex:0 0 44%;}}
@media(min-width:1024px){.review-card{flex:0 0 30%;}}
.review-head{display:flex;align-items:center;gap:10px;}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:0 0 auto;}
.review-name{font-size:14px;font-weight:600;}
.review-role{font-size:12px;color:var(--c-text-3);}
.review-stars{color:#FFB020;font-size:12px;margin-top:14px;letter-spacing:2px;}
.review-text{margin-top:10px;font-size:14px;color:var(--c-text-2);}

/* ---------- side consult ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;}
@media(min-width:1024px){.split{grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:40px;align-items:start;}}
.consult-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
}
@media(min-width:1024px){.consult-card{position:sticky;top:88px;}}
.consult-card h3{font-size:19px;font-weight:700;}
.consult-card .lead{font-size:14px;color:var(--c-text-2);margin-top:10px;}
.consult-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.consult-list li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);}
.consult-list i{color:var(--c-mint);margin-top:3px;}
.trust-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);}

/* ---------- news ---------- */
.news-panel{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.news-item{display:flex;gap:20px;justify-content:space-between;align-items:flex-start;padding:22px 24px;border-bottom:1px solid var(--c-line);transition:background .18s ease;}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:#FBFCFE;}
.news-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--c-text);transition:color .18s ease;}
.news-title:hover{color:var(--c-primary);}
.news-title::after{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:10px;margin-left:10px;opacity:0;transition:opacity .2s ease;color:var(--c-primary);}
.news-title:hover::after{opacity:1;}
.news-sum{margin-top:8px;font-size:14px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:820px;}
.news-meta{display:flex;align-items:center;gap:12px;flex:0 0 auto;font-size:13px;color:var(--c-text-3);padding-top:4px;}
@media(max-width:768px){
  .news-item{flex-direction:column;gap:12px;}
  .news-meta{padding-top:0;}
}
.empty-state{padding:56px 24px;text-align:center;color:var(--c-text-3);}
.empty-state i{font-size:28px;color:#C3CDDF;margin-bottom:14px;display:block;}
.empty-state p{font-size:15px;color:var(--c-text-2);}
.empty-state a{margin-top:14px;display:inline-flex;}

/* ---------- faq ---------- */
.faq-list{max-width:860px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);transition:color .18s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--c-bg);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;transition:transform .25s ease,background .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-primary-soft);}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;color:var(--c-text-2);max-width:760px;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(135deg,#EAF1FE 0%,#FFF3ED 100%);
  border:1px solid #DCE6FA;border-radius:var(--r-lg);padding:36px 24px;
}
@media(min-width:768px){.cta-band{padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;}}
.cta-band h2{font-size:24px;font-weight:700;line-height:1.35;}
@media(min-width:1024px){.cta-band h2{font-size:28px;}}
.cta-band p{margin-top:12px;font-size:15px;color:var(--c-text-2);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
@media(min-width:768px){.cta-actions{margin-top:0;flex:0 0 auto;}}

/* ---------- footer ---------- */
.site-footer{background:#0E1726;color:#A8B3C4;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding:56px 0 40px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1.2fr 1fr;gap:48px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#A8B3C4;transition:color .18s ease;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-text{font-size:14px;line-height:1.9;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags a{
  padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.07);font-size:13px;color:#C7D0DE;transition:all .18s ease;
}
.footer-tags a:hover{background:rgba(47,111,237,.28);color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#7C8798;}

/* ---------- mobile sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:50;height:60px;background:rgba(255,255,255,.97);
  border-top:1px solid var(--c-line);display:flex;align-items:center;gap:12px;padding:0 16px;
  box-shadow:0 -8px 24px -18px rgba(16,32,64,.5);
}
.sticky-bar .bar-text{font-size:13px;color:var(--c-text-2);line-height:1.4;flex:1;min-width:0;}
.sticky-bar .btn{flex:0 0 60%;}
@media(min-width:1024px){.sticky-bar{display:none;}}
body{padding-bottom:60px;}
@media(min-width:1024px){body{padding-bottom:0;}}

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

/* roulang page: category1 */
:root{
  --c-primary:#2F6FED;
  --c-primary-dark:#1E56C8;
  --c-primary-soft:#EAF1FE;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFF1EB;
  --c-mint:#12B886;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E4E9F2;
  --c-text:#0E1726;
  --c-text-2:#4A5568;
  --c-text-3:#8A94A6;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:24px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px -8px rgba(16,32,64,.12);
  --sh-3:0 18px 48px -16px rgba(16,32,64,.18);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{max-width:1280px;margin:0 auto;padding:0 40px;}
@media (max-width:1024px){.container{padding:0 24px;}}
@media (max-width:640px){.container{padding:0 16px;}}

/* ------- header / nav ------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-stuck{background:rgba(255,255,255,.96);box-shadow:0 6px 20px -12px rgba(16,32,64,.22);}
.nav-shell{display:flex;align-items:center;gap:22px;height:var(--nav-h);transition:height .22s ease;}
.site-header.is-stuck .nav-shell{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:13px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-cn{font-weight:700;font-size:16px;color:var(--c-text);}
.brand-en{font-size:11px;color:var(--c-text-3);letter-spacing:.6px;}
.channels{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none;}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;padding:8px 12px;font-size:14px;color:var(--c-text-2);
  white-space:nowrap;border-radius:var(--r-sm);font-weight:500;
}
.channel:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-tools{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  color:var(--c-text-2);border:1px solid transparent;transition:all .18s ease;
}
.icon-btn:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#D5E2FD;}
.trend-btn{
  height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-text-2);display:flex;align-items:center;gap:6px;
  transition:all .18s ease;background:#fff;
}
.trend-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}
.search-wrap{position:absolute;top:calc(100% + 10px);right:40px;display:none;}
.search-wrap.is-open{display:block;}
.search-box{
  display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:8px 16px;box-shadow:var(--sh-3);width:300px;
}
.search-box input{border:0;outline:0;font-size:14px;flex:1;background:transparent;color:var(--c-text);}
.trend-panel{
  position:absolute;top:calc(100% + 10px);right:40px;width:360px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-3);
  padding:18px;display:none;
}
.trend-panel.is-open{display:block;}
.trend-panel h3{font-size:13px;color:var(--c-text-3);font-weight:600;margin-bottom:10px;letter-spacing:.4px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  background:var(--c-bg);color:var(--c-text-2);font-size:13px;border:1px solid var(--c-line);
  transition:all .18s ease;
}
.tag:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#D5E2FD;}
.hamburger{display:none;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,23,38,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  padding:22px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-title{font-size:12px;letter-spacing:.6px;color:var(--c-text-3);font-weight:600;}
.drawer-links{display:flex;flex-direction:column;gap:2px;}
.drawer-links a{padding:12px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--c-text-2);font-weight:500;}
.drawer-links a:hover{background:var(--c-bg);color:var(--c-primary);}
.drawer-links a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.drawer-search{display:flex;align-items:center;gap:8px;background:var(--c-bg);border-radius:999px;padding:10px 16px;border:1px solid var(--c-line);}
.drawer-search input{border:0;outline:0;background:transparent;flex:1;font-size:14px;}

/* ------- hero ------- */
.cat-hero{background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-line);padding:34px 0 40px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;flex-wrap:wrap;}
.crumb a:hover{color:var(--c-primary);}
.crumb .now{color:var(--c-text-2);font-weight:600;}
.cat-hero-grid{display:grid;grid-template-columns:1fr 190px;gap:40px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12.5px;font-weight:600;margin-bottom:16px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.cat-hero h1{font-size:clamp(28px,3.6vw,40px);line-height:1.28;font-weight:700;letter-spacing:-.4px;}
.cat-hero .lede{margin-top:14px;color:var(--c-text-2);font-size:16px;max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.hero-thumb{
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-3);position:relative;
  border:4px solid #fff;aspect-ratio:9/16;
}
.hero-thumb img{width:100%;height:100%;object-fit:cover;}
.hero-thumb .badge{
  position:absolute;left:10px;top:10px;background:rgba(14,23,38,.62);color:#fff;
  font-size:11px;padding:4px 9px;border-radius:999px;backdrop-filter:blur(6px);
}

/* ------- sections ------- */
.section{padding:88px 0;}
.section--tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;letter-spacing:-.3px;}
.section-head p{margin-top:8px;color:var(--c-text-2);font-size:15px;max-width:640px;}
.head-link{font-size:14px;font-weight:600;color:var(--c-primary);}
.head-link:hover{color:var(--c-primary-dark);text-decoration:underline;}

/* card wall */
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.vcard{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;
}
.vcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.vcard-media{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--c-bg);}
.vcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.vcard:hover .vcard-media img{transform:scale(1.03);}
.vcard-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,23,38,0) 42%,rgba(14,23,38,.72) 100%);
}
.vcard-index{
  position:absolute;left:14px;top:14px;z-index:2;width:32px;height:32px;border-radius:10px;
  background:var(--c-accent);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);
}
.vcard-cap{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;}
.vcard-cap h3{
  color:#fff;font-size:16px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.vcard-cap span{display:inline-block;margin-top:8px;font-size:11.5px;color:#fff;background:rgba(255,255,255,.22);padding:3px 9px;border-radius:999px;}
.vcard-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.vcard-body p{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.vcard-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-text-3);margin-top:auto;}
.mint{
  display:inline-flex;align-items:center;gap:5px;color:var(--c-mint);font-weight:600;font-size:12px;
}
.mint::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-mint);}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;position:relative;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-no{
  font-size:13px;font-weight:700;color:var(--c-primary);background:var(--c-primary-soft);
  width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;margin-top:16px;}
.step p{font-size:14px;color:var(--c-text-2);margin-top:8px;line-height:1.72;}

/* checklist band */
.band{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-xl);box-shadow:var(--sh-1);overflow:hidden;}
.band-row{display:grid;grid-template-columns:240px 1fr;gap:24px;padding:24px 28px;border-bottom:1px solid var(--c-line);}
.band-row:last-child{border-bottom:0;}
.band-row:nth-child(odd){background:#FBFCFE;}
.band-row h3{font-size:16px;font-weight:600;}
.band-row p{font-size:14.5px;color:var(--c-text-2);}
.band-row .flag{
  display:inline-block;margin-top:6px;font-size:12px;color:var(--c-accent);
  background:var(--c-accent-soft);padding:3px 9px;border-radius:999px;font-weight:600;
}

/* faq */
.faq-list{max-width:860px;display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--c-bg);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;font-weight:600;
  transition:transform .24s ease,background .2s ease;
}
.faq-item[open] summary .mark{transform:rotate(45deg);background:var(--c-primary-soft);}
.faq-item[open] summary{color:var(--c-primary);}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--c-text-2);max-width:760px;line-height:1.8;}

/* cta */
.cta-band{
  background:linear-gradient(120deg,#EAF1FE 0%,#FFF1EB 100%);
  border:1px solid var(--c-line);border-radius:var(--r-xl);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;}
.cta-band p{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:560px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-2);}
.btn-accent:hover{filter:brightness(.94);transform:translateY(-1px);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-text-2);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-outline-accent{background:#fff;border-color:#FFD3C1;color:var(--c-accent);}
.btn-outline-accent:hover{background:var(--c-accent-soft);transform:translateY(-1px);}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;}

/* footer */
.site-footer{background:#0E1726;color:#C9D2E0;padding:64px 0 28px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.brand-text .brand-cn{color:#fff;}
.brand-text .brand-en{color:#7C8798;}
.footer-text{font-size:13.5px;line-height:1.85;color:#98A4B6;}
.footer-title{font-size:13px;font-weight:600;color:#fff;letter-spacing:.4px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#C9D2E0;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags a{
  font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.06);
  color:#C9D2E0;border:1px solid rgba(255,255,255,.08);
}
.footer-tags a:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C8798;
}

/* responsive */
@media (max-width:1024px){
  .channels{display:none;}
  .hamburger{display:flex;}
  .cat-hero-grid{grid-template-columns:1fr;gap:26px;}
  .hero-thumb{max-width:200px;aspect-ratio:9/16;}
  .wall{grid-template-columns:repeat(2,1fr);gap:22px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .search-wrap,.trend-panel{right:24px;}
}
@media (max-width:640px){
  .section{padding:56px 0;}
  .section--tight{padding:40px 0;}
  .wall{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .band-row{grid-template-columns:1fr;gap:10px;padding:20px;}
  .cta-band{padding:26px;flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .search-wrap,.trend-panel{right:16px;left:16px;width:auto;}
  .search-box{width:100%;}
  .trend-panel{width:auto;}
  .brand-en{display:none;}
}

/* roulang page: article */
:root{
  --c-primary:#2F6FED;
  --c-primary-dark:#1E56C8;
  --c-primary-soft:#EAF1FE;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFF1EB;
  --c-mint:#12B886;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E4E9F2;
  --c-text:#0E1726;
  --c-text-2:#4A5568;
  --c-text-3:#8A94A6;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:24px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px -8px rgba(16,32,64,.12);
  --sh-3:0 18px 48px -16px rgba(16,32,64,.18);
  --gap-section:88px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 20px -12px rgba(16,32,64,.28)}
.nav-inner{display:flex;align-items:center;gap:14px;height:72px;transition:height .25s ease}
.site-header.is-stuck .nav-inner{height:58px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary),#5590FF);
  color:#fff;font-weight:700;font-size:13px;letter-spacing:.04em;
  display:grid;place-items:center;box-shadow:0 6px 14px -8px rgba(47,111,237,.9);
}
.brand-copy{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:15px;font-weight:600;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.14em;text-transform:uppercase}
.channels{display:flex;align-items:center;gap:2px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;white-space:nowrap;padding:8px 13px;border-radius:999px;
  font-size:14px;color:var(--c-text-2);transition:background .2s ease,color .2s ease;
}
.channel:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.channel.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft)}
.channel.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-tools{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  color:var(--c-text-2);border:1px solid var(--c-line);background:#fff;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:#CADCFF;transform:translateY(-1px)}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:0;opacity:0;
  overflow:hidden;border-radius:999px;background:var(--c-bg);border:1px solid transparent;
  transition:width .28s ease,opacity .2s ease,border-color .2s ease;
}
.nav-search.is-open{width:262px;opacity:1;border-color:var(--c-line);padding:0 14px}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--c-text-3)}
.hot-wrap{position:relative}
.hot-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:320px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);padding:18px;display:none;
}
.hot-panel.is-open{display:block}
.hot-title{font-size:13px;color:var(--c-text-3);margin-bottom:10px}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tag{
  font-size:13px;padding:6px 12px;border-radius:999px;background:#F1F4F9;color:var(--c-text-2);
  transition:background .2s ease,color .2s ease;
}
.hot-tag:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.burger{display:none}
@media (max-width:1023px){
  .channels{display:none}
  .nav-search{display:none}
  .burger{display:grid}
}
/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,23,38,.45);opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:310px;max-width:86vw;background:#fff;z-index:91;
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-label{font-size:12px;color:var(--c-text-3);letter-spacing:.1em;margin:16px 0 8px}
.drawer-link{
  display:block;padding:12px 14px;border-radius:var(--r-md);font-size:15px;color:var(--c-text-2);
  transition:background .2s ease,color .2s ease;
}
.drawer-link:hover,.drawer-link.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;border-radius:999px;background:var(--c-bg);padding:0 16px;border:1px solid var(--c-line)}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3)}

/* ---------- article head ---------- */
.article-head{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EEF4FF 0%,#F6F8FC 100%);
  border-bottom:1px solid var(--c-line);
  padding:26px 0 34px;
}
.article-head::after{
  content:"";position:absolute;right:-120px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.16),rgba(255,122,69,0) 66%);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);position:relative;z-index:2}
.breadcrumb a{color:var(--c-text-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C7CFDD}
.breadcrumb .current{color:var(--c-text);font-weight:500;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.head-body{position:relative;z-index:2;margin-top:18px;max-width:880px}
.meta-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;
  color:var(--c-primary);background:#fff;border:1px solid #D5E3FF;border-radius:999px;
  padding:5px 12px;
}
.meta-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--c-mint)}
h1.article-title{
  font-size:clamp(25px,3.2vw,38px);line-height:1.35;font-weight:700;letter-spacing:-.01em;
  margin:14px 0 14px;color:var(--c-text);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3)}
.meta-row .divide{color:#C7CFDD}

/* ---------- layout ---------- */
.page-wrap{padding:36px 0 56px}
.layout{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
@media (min-width:1024px){
  .layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:34px}
}
.article-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:22px;
}
@media (min-width:768px){.article-card{padding:32px}}
@media (min-width:1024px){.article-card{padding:40px}}

/* rich text */
.prose{font-size:16px;line-height:1.85;color:#1B2637;word-break:break-word}
.prose>*+*{margin-top:1em}
.prose p{margin:1em 0;color:var(--c-text-2)}
.prose h2{
  position:relative;padding-left:15px;margin:40px 0 16px;
  font-size:22px;line-height:1.5;font-weight:600;color:var(--c-text);
}
.prose h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;background:var(--c-primary);
}
.prose h3{font-size:18px;line-height:1.6;font-weight:600;color:var(--c-text);margin:28px 0 12px}
.prose ul,.prose ol{margin:1em 0;padding-left:0}
.prose ul li{position:relative;padding-left:18px;margin:10px 0;color:var(--c-text-2)}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.prose ol{counter-reset:li}
.prose ol li{position:relative;padding-left:26px;margin:10px 0;color:var(--c-text-2);counter-increment:li}
.prose ol li::before{
  content:counter(li);position:absolute;left:0;top:2px;width:19px;height:19px;border-radius:6px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;
  display:grid;place-items:center;line-height:1;
}
.prose blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:#F7FAFF;border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-text-2);
}
.prose blockquote p{margin:.4em 0}
.prose img{border-radius:var(--r-lg);margin:24px auto;box-shadow:var(--sh-2)}
.prose figure{margin:24px 0}
.prose figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px}
.prose a{color:var(--c-primary);border-bottom:1px solid rgba(47,111,237,.35);transition:color .2s ease,border-color .2s ease}
.prose a:hover{color:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.prose strong{font-weight:600;color:var(--c-text)}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--c-line);padding:11px 14px;text-align:left}
.prose th{background:#F7F9FD;font-weight:600;color:var(--c-text)}
.prose code{background:#F1F4F9;border-radius:6px;padding:2px 6px;font-size:14px}

.empty-state{
  text-align:center;padding:54px 20px;border:1px dashed #CFD9EA;border-radius:var(--r-lg);background:#FAFCFF;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:18px;margin:0 auto 16px;display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:8px}
.empty-state p{color:var(--c-text-2);margin-bottom:20px}

/* tags + footer actions */
.tag-group{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag{
  font-size:13px;padding:6px 13px;border-radius:999px;background:#F1F4F9;color:var(--c-text-2);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-1px)}
.back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  border:1px solid transparent;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(47,111,237,1)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -14px rgba(255,122,69,1)}
.btn-accent:hover{background:#F26B36;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:#D5E3FF}
.btn-ghost:hover{background:var(--c-primary-soft);transform:translateY(-1px)}
.btn-outline-accent{background:#fff;color:var(--c-accent);border-color:#FFD6C4}
.btn-outline-accent:hover{background:var(--c-accent-soft);transform:translateY(-1px)}

/* sidebar */
.side-stack{display:grid;gap:20px}
@media (min-width:1024px){.side-stack{position:sticky;top:88px}}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:20px}
.side-title{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-title::before{content:"";width:4px;height:15px;border-radius:3px;background:var(--c-primary)}
.toc-list{display:grid;gap:2px}
.toc-list a{
  display:block;font-size:13.5px;color:var(--c-text-2);padding:7px 10px;border-radius:var(--r-sm);
  border-left:2px solid transparent;transition:all .2s ease;line-height:1.55;
}
.toc-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);border-left-color:var(--c-primary)}
.rank-list{display:grid;gap:2px}
.rank-item{
  display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px solid var(--c-line);
}
.rank-item:last-child{border-bottom:0}
.rank-num{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
  font-size:12px;font-weight:700;background:#F1F4F9;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}
.rank-item:nth-child(1) .rank-num{background:var(--c-accent-soft);color:var(--c-accent)}
.rank-item:nth-child(2) .rank-num{background:var(--c-primary-soft);color:var(--c-primary)}
.rank-link{font-size:14px;line-height:1.6;color:var(--c-text-2);transition:color .2s ease}
.rank-link:hover{color:var(--c-primary)}
.help-card{background:linear-gradient(160deg,#F3F7FF,#FFFFFF 60%);border-color:#DCE7FB}
.help-card p{font-size:13.5px;color:var(--c-text-2);line-height:1.7;margin-bottom:14px}
.help-points{display:grid;gap:8px;margin-bottom:16px}
.help-points li{display:flex;gap:8px;font-size:13px;color:var(--c-text-2);align-items:flex-start}
.help-points li span.check{
  flex:0 0 auto;width:16px;height:16px;border-radius:50%;background:rgba(18,184,134,.14);
  color:var(--c-mint);font-size:10px;display:grid;place-items:center;margin-top:4px;font-weight:700;
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  font-size:13px;padding:6px 12px;border-radius:999px;background:#F1F4F9;color:var(--c-text-2);
  transition:background .2s ease,color .2s ease;
}
.tag-cloud a:hover{background:var(--c-primary-soft);color:var(--c-primary)}

/* related */
.section{margin-top:52px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:24px;font-weight:700;letter-spacing:-.01em}
.section-head p{font-size:13.5px;color:var(--c-text-3);margin-top:6px}
.section-head .line-link{font-size:14px;color:var(--c-primary);font-weight:500;white-space:nowrap}
.section-head .line-link:hover{text-decoration:underline}
.related-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.related-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:#EDF2FB}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{
  font-size:16px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card:hover h3{color:var(--c-primary)}
.related-body p{
  font-size:13.5px;color:var(--c-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-meta{margin-top:auto;font-size:12.5px;color:var(--c-text-3);display:flex;align-items:center;gap:8px}

/* CTA banner */
.cta-banner{
  margin-top:64px;background:linear-gradient(135deg,#EDF3FF 0%,#FFF4EF 100%);
  border:1px solid #DCE7FB;border-radius:var(--r-xl);padding:32px 24px;
  display:flex;flex-direction:column;gap:20px;
}
@media (min-width:768px){
  .cta-banner{flex-direction:row;align-items:center;justify-content:space-between;padding:38px 40px}
}
.cta-banner h2{font-size:24px;font-weight:700;letter-spacing:-.01em}
.cta-banner p{font-size:14px;color:var(--c-text-2);margin-top:8px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* footer */
.site-footer{background:#0E1726;color:#B7C1D2;margin-top:88px;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1.2fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--c-primary);box-shadow:none}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text .brand-cn{font-size:15px;font-weight:600;color:#fff}
.brand-text .brand-en{font-size:11px;letter-spacing:.14em;color:#7C8798;text-transform:uppercase}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-text{font-size:13.5px;line-height:1.8;color:#98A3B6}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:13.5px;color:#98A3B6;transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags a{
  font-size:12.5px;padding:5px 11px;border-radius:999px;background:rgba(255,255,255,.06);
  color:#B7C1D2;transition:background .2s ease,color .2s ease;
}
.footer-tags a:hover{background:rgba(47,111,237,.28);color:#fff}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#7C8798;
}

/* mobile sticky bar */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;height:60px;z-index:55;
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-top:1px solid var(--c-line);
  display:flex;align-items:center;gap:12px;padding:0 16px;
}
.mobile-bar .bar-text{font-size:13px;color:var(--c-text-2);flex:1;line-height:1.4}
.mobile-bar .btn{flex:0 0 58%;height:44px}
@media (min-width:1024px){.mobile-bar{display:none}}
@media (max-width:1023px){body{padding-bottom:64px}}

/* roulang page: category2 */
:root{
  --c-primary:#2F6FED;
  --c-primary-dark:#1E56C8;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFF1EB;
  --c-mint:#12B886;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-border:#E4E9F2;
  --c-text:#0E1726;
  --c-text-2:#4A5568;
  --c-muted:#8A94A6;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:24px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px -8px rgba(16,32,64,.12);
  --sh-3:0 18px 48px -16px rgba(16,32,64,.18);
  --section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.section{padding:var(--section) 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.section-title .bar{display:inline-block;width:6px;height:20px;border-radius:3px;background:var(--c-primary);margin-right:12px;vertical-align:-2px}
.section-sub{color:var(--c-text-2);font-size:15px;margin-top:10px;max-width:720px}
.muted{color:var(--c-muted);font-size:13px;line-height:1.6}
.num{font-variant-numeric:tabular-nums}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#2863D6;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:#fff;color:var(--c-accent);border-color:#FFD3C0}
.btn-outline:hover{background:var(--c-accent-soft);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-border)}
.btn-ghost:hover{border-color:#BFD3FA;background:#F3F7FF;transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;background:#EEF1F6;color:var(--c-text-2);
  font-size:13px;line-height:1.4;transition:background-color .18s ease,color .18s ease;
}
.tag:hover{background:#E4ECFD;color:var(--c-primary)}
.tag-primary{background:#E8F0FE;color:var(--c-primary)}
.tag-accent{background:var(--c-accent-soft);color:#D9602F}
.badge-mint{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;
  background:rgba(18,184,134,.1);color:#0E8F69;font-size:12px;font-weight:600;line-height:1.4;
}
.badge-mint i{width:6px;height:6px;border-radius:50%;background:var(--c-mint);display:inline-block}
.tag-mini{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:6px;
  background:#F2F5FA;color:var(--c-text-2);font-size:12px;line-height:1.5;
}
.clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  height:72px;background:rgba(246,248,252,.82);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height .25s ease,background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  height:56px;background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--c-border);box-shadow:0 2px 12px -6px rgba(16,32,64,.10);
}
.header-inner{display:flex;align-items:center;gap:20px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;letter-spacing:.02em;flex:0 0 auto;
}
.brand-cn{display:block;font-size:16px;font-weight:700;line-height:1.15;color:var(--c-text)}
.brand-en{display:block;font-size:11px;line-height:1.2;color:var(--c-muted);letter-spacing:.06em}
.channels{display:flex;align-items:center;gap:2px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;padding:8px 12px;border-radius:8px;font-size:14px;color:var(--c-text-2);
  white-space:nowrap;transition:color .18s ease,background-color .18s ease;
}
.channel:hover{color:var(--c-primary);background:rgba(47,111,237,.06)}
.channel.is-active{color:var(--c-primary);font-weight:600}
.channel.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-actions{display:flex;align-items:center;gap:6px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border:0;border-radius:999px;background:transparent;color:var(--c-text-2);
  display:grid;place-items:center;cursor:pointer;transition:background-color .18s ease,color .18s ease;
}
.icon-btn:hover{background:rgba(47,111,237,.08);color:var(--c-primary)}
.search-wrap{display:flex;align-items:center}
.search-form{width:0;opacity:0;overflow:hidden;transition:width .28s ease,opacity .2s ease}
.search-wrap.is-open .search-form{width:260px;opacity:1;margin-right:6px}
.search-input{
  width:100%;height:40px;border-radius:999px;border:1px solid transparent;background:var(--c-bg);
  padding:0 16px;font-size:14px;color:var(--c-text);transition:border-color .18s ease,background-color .18s ease;
}
.search-input::placeholder{color:var(--c-muted)}
.search-input:focus{outline:none;border-color:var(--c-primary);background:#fff}
.hot-wrap{position:relative}
.hot-btn{
  height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--c-border);background:#fff;
  color:var(--c-text-2);font-size:14px;font-weight:500;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.hot-btn:hover{border-color:#BFD3FA;color:var(--c-primary);background:#F8FAFF}
.hot-btn[aria-expanded="true"]{border-color:var(--c-primary);color:var(--c-primary)}
.hot-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:340px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-md);box-shadow:var(--sh-3);padding:18px;display:none;z-index:70;
}
.hot-panel.is-open{display:block}
.hot-title{font-size:13px;font-weight:600;color:var(--c-text);margin-bottom:12px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.menu-btn{
  width:40px;height:40px;border:0;border-radius:10px;background:transparent;color:var(--c-text);
  display:none;place-items:center;cursor:pointer;
}
.menu-btn:hover{background:rgba(47,111,237,.08);color:var(--c-primary)}
.mobile-search{
  position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--c-border);
  padding:12px 16px;display:none;box-shadow:var(--sh-2);
}
.mobile-search.is-open{display:block}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,23,38,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:308px;max-width:88vw;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;
  box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-border)}
.drawer-body{padding:18px 20px;overflow-y:auto;flex:1}
.drawer-title{font-size:13px;font-weight:600;color:var(--c-muted);letter-spacing:.04em;margin:18px 0 10px}
.drawer-title:first-child{margin-top:0}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;padding:12px 0;font-size:15px;color:var(--c-text);border-bottom:1px solid var(--c-border)}
.drawer-links a:last-child{border-bottom:0}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--c-primary)}
.drawer-foot{padding:18px 20px;border-top:1px solid var(--c-border);background:#FAFBFE}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C7CEDB}
.breadcrumb .current{color:var(--c-text);font-weight:500}

/* ============ Hero（紧凑） ============ */
.page-hero{
  position:relative;overflow:hidden;padding:44px 0 56px;
  background:linear-gradient(180deg,#EDF3FE 0%,#F6F8FC 100%);
  border-bottom:1px solid var(--c-border);
}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 236px;gap:48px;align-items:center;position:relative;z-index:1}
.hero-copy .breadcrumb{margin-bottom:18px}
.hero-h1{font-size:clamp(28px,3.4vw,42px);line-height:1.25;font-weight:700;letter-spacing:-.015em}
.hero-h1 em{font-style:normal;color:var(--c-primary);position:relative;white-space:nowrap}
.hero-lead{margin-top:16px;font-size:16px;color:var(--c-text-2);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.hero-side{position:relative}
.hero-side img{
  width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:var(--sh-3);transform:rotate(-2deg);
}
.hero-side::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-14px;height:28px;border-radius:50%;
  background:rgba(47,111,237,.14);filter:blur(16px);z-index:-1;
}
.hero-stats{display:flex;gap:32px;margin-top:28px;flex-wrap:wrap}
.hero-stat strong{display:block;font-size:22px;font-weight:700;color:var(--c-text);font-variant-numeric:tabular-nums}
.hero-stat span{font-size:13px;color:var(--c-muted)}

/* ============ 筛选胶囊 ============ */
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding:16px 0;scrollbar-width:none;
  position:sticky;top:56px;z-index:40;background:rgba(246,248,252,.94);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;border:1px solid var(--c-border);background:#fff;
  font-size:14px;color:var(--c-text-2);transition:all .18s ease;min-height:40px;display:inline-flex;align-items:center;
}
.filter-chip:hover{border-color:#BFD3FA;color:var(--c-primary)}
.filter-chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ============ 榜单 ============ */
.rank-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.rank-group{padding:8px 28px 4px}
.group-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:26px 0 6px;flex-wrap:wrap}
.group-head h2{font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px}
.group-head h2 .dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent)}
.group-head .muted{font-size:13px}
.rank-row{
  display:grid;grid-template-columns:84px minmax(0,1fr) 96px;gap:22px;align-items:center;
  padding:24px 0;border-top:1px solid var(--c-border);
  transition:transform .2s ease,background-color .2s ease;
}
.rank-group .rank-row:first-of-type{border-top:1px solid var(--c-border)}
.rank-row:hover{transform:translateY(-2px)}
.rank-num{
  font-size:48px;font-weight:700;line-height:1;color:#C7D7F8;
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;transition:color .2s ease;
}
.rank-row:hover .rank-num{color:var(--c-primary)}
.rank-title{font-size:18px;font-weight:600;line-height:1.5}
.rank-row:hover .rank-title{color:var(--c-primary)}
.rank-desc{margin-top:8px;font-size:15px;color:var(--c-text-2);line-height:1.75}
.rank-meta{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}
.rank-thumb img{width:96px;height:96px;border-radius:var(--r-md);object-fit:cover;box-shadow:var(--sh-1)}

/* ============ 流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.flow-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:24px;
  position:relative;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.flow-step{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:#E8F0FE;color:var(--c-primary);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
}
.flow-card h3{font-size:17px;font-weight:600;margin-top:16px}
.flow-card p{margin-top:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.75}
.flow-line{position:relative;margin-top:-1px}
.flow-line::before{
  content:"";position:absolute;left:40px;right:40px;top:0;height:2px;border-radius:2px;
  background:repeating-linear-gradient(90deg,#CFDDF9 0 10px,transparent 10px 20px);
}

/* ============ 异常速查 ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.check-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);padding:22px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFDDF9}
.check-card h3{font-size:16px;font-weight:600;display:flex;align-items:center;gap:10px}
.check-card h3 .mark{width:8px;height:8px;border-radius:2px;background:var(--c-accent);flex:0 0 auto}
.check-card p{margin-top:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.75}
.check-card .tag-mini{margin-top:14px}

/* ============ 信任条 ============ */
.trust-strip{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:22px 26px;box-shadow:var(--sh-1);
}
.trust-strip p{font-size:15px;color:var(--c-text-2);max-width:760px}
.trust-strip strong{color:var(--c-text)}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:6px 28px;box-shadow:var(--sh-1)}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;
}
.faq-q:hover{color:var(--c-primary)}
.faq-sign{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:14px;height:2px}
.faq-sign::after{width:2px;height:14px;transition:transform .25s ease,opacity .25s ease}
.faq-item.is-open .faq-sign::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 0 22px;font-size:15px;color:var(--c-text-2);max-width:760px;line-height:1.8}

/* ============ CTA ============ */
.cta-banner{
  background:linear-gradient(135deg,#EAF1FE 0%,#F3F7FF 100%);
  border:1px solid #D8E4FB;border-radius:var(--r-lg);padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-banner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;
  background:rgba(47,111,237,.08);
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35}
.cta-copy p{margin-top:12px;font-size:15px;color:var(--c-text-2)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{background:#0E1726;color:#C4CCDA;margin-top:0;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-primary);color:#fff;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-weight:700;font-size:13px}
.footer-brand .brand-cn{font-size:16px;font-weight:700;line-height:1.2}
.footer-brand .brand-en{font-size:11px;line-height:1.2;letter-spacing:.06em}
.footer-text{font-size:14px;line-height:1.8;color:#98A2B3}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:#98A2B3;transition:color .18s ease,text-decoration-color .18s ease}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags a{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.07);color:#B6BFCE;font-size:13px;transition:background-color .18s ease,color .18s ease;
}
.footer-tags a:hover{background:rgba(47,111,237,.35);color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8798;
}

/* ============ 吸底条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--c-border);padding:8px 16px;gap:12px;align-items:center;
  box-shadow:0 -6px 20px -12px rgba(16,32,64,.2);
}
.sticky-bar p{font-size:13px;color:var(--c-text-2);flex:1;line-height:1.4}
.sticky-bar .btn{flex:0 0 58%}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--section:64px}
  .container{padding:0 24px}
  .channels{display:none}
  .menu-btn{display:grid}
  .search-wrap{display:none}
  .hot-wrap{display:none}
  .hero-inner{grid-template-columns:minmax(0,1fr) 180px;gap:28px}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rank-row{grid-template-columns:64px minmax(0,1fr) 84px;gap:16px}
  .rank-num{font-size:40px}
  .rank-thumb img{width:84px;height:84px}
}
@media (max-width:768px){
  :root{--section:56px}
  .page-hero{padding:32px 0 44px}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero-side{max-width:230px}
  .hero-side img{aspect-ratio:9/16}
  .cta-banner{padding:32px 24px}
  .faq-list{padding:6px 20px}
  .rank-group{padding:4px 18px}
  .rank-row{grid-template-columns:52px minmax(0,1fr);gap:14px;align-items:start;padding:20px 0}
  .rank-thumb{display:none}
  .rank-num{font-size:34px;line-height:1.1}
  .rank-title{font-size:16.5px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .brand-en{display:none}
  .brand-cn{font-size:15px}
  .flow-grid{grid-template-columns:minmax(0,1fr)}
  .check-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero-stats{gap:22px}
  .section-head{margin-bottom:22px}
  .sticky-bar{display:flex}
  body{padding-bottom:64px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .hero-h1{font-size:26px}
  .rank-num{font-size:28px}
  .rank-desc{font-size:14.5px}
}

/* roulang page: category3 */
:root{
  --c-primary:#2F6FED;
  --c-primary-dark:#1E56C8;
  --c-primary-soft:#EFF3FB;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFF1EB;
  --c-mint:#12B886;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E4E9F2;
  --c-text:#0E1726;
  --c-text-2:#4A5568;
  --c-text-3:#8A94A6;
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-xl:24px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px -8px rgba(16,32,64,.12);
  --sh-3:0 18px 48px -16px rgba(16,32,64,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px; line-height:1.75; font-weight:400;
  color:var(--c-text); background:var(--c-bg);
}
html body img{max-width:100%;height:auto;display:block}
html body a{color:inherit;text-decoration:none}
html body button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
html body ul,html body ol{margin:0;padding:0;list-style:none}
html body h1,html body h2,html body h3,html body h4,html body p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s ease;position:relative}
.site-header.is-stuck .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:700;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-en{font-size:11px;color:var(--c-text-3);letter-spacing:.06em;white-space:nowrap}
.channels{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none;margin-left:8px}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;padding:8px 12px;font-size:15px;color:var(--c-text-2);
  border-radius:var(--r-sm);white-space:nowrap;transition:color .2s,background .2s;
}
.channel:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.channel.is-active{color:var(--c-primary);font-weight:600}
.channel.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-tools{display:flex;align-items:center;gap:6px;margin-left:auto;position:relative}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  color:var(--c-text-2);transition:background .2s,color .2s;flex:0 0 auto;
}
.icon-btn:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.icon-btn svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.search-box{
  display:none;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:var(--c-bg);border:1px solid transparent;border-radius:999px;
  transition:border-color .2s,background .2s;
}
.search-box.is-open{display:flex}
.search-box:focus-within{border-color:var(--c-primary);background:#fff}
.search-box input{border:0;background:transparent;outline:none;width:220px;font-size:14px;color:var(--c-text)}
.search-box input::placeholder{color:var(--c-text-3)}
.hot-panel{
  position:absolute;top:52px;right:0;width:330px;padding:18px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-3);
  display:none;
}
.hot-panel.is-open{display:block}
.hot-title{font-size:13px;color:var(--c-text-3);margin-bottom:12px}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tags a{
  font-size:13px;padding:5px 12px;border-radius:999px;background:var(--c-bg);
  color:var(--c-text-2);transition:background .2s,color .2s;
}
.hot-tags a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.hamburger{display:none;width:40px;height:40px;border-radius:10px;align-items:center;justify-content:center;color:var(--c-text-2)}
.hamburger:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.hamburger svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,23,38,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:86vw;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .3s ease;
  padding:22px 20px 32px;overflow-y:auto;box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--c-text-2)}
.drawer-close:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-label{font-size:12px;color:var(--c-text-3);letter-spacing:.08em;margin:18px 0 10px}
.drawer-nav{display:grid;gap:4px}
.drawer-nav a{padding:11px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--c-text-2);transition:background .2s,color .2s}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;background:var(--c-bg);border-radius:999px;margin-top:6px}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.drawer-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);line-height:1.9}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;background:#EDF3FE;border-bottom:1px solid var(--c-line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.16;
}
.page-hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr 220px;gap:48px;align-items:center;padding:40px 0 48px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:16px;flex-wrap:wrap}
.crumb a:hover{color:var(--c-primary)}
.crumb span.sep{color:#C3CBD9}
.crumb .cur{color:var(--c-text)}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  color:var(--c-primary);background:rgba(47,111,237,.1);border-radius:999px;padding:5px 12px;margin-bottom:14px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-mint);display:inline-block}
.page-hero h1{
  font-size:clamp(26px,3.2vw,38px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
  color:var(--c-text);max-width:760px;
}
.hero-lead{margin-top:16px;font-size:16px;color:var(--c-text-2);max-width:640px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pill{
  font-size:13px;color:var(--c-primary);background:#fff;border:1px solid #D8E3FA;
  border-radius:999px;padding:6px 14px;transition:box-shadow .2s,transform .2s;
}
.pill:hover{box-shadow:var(--sh-1);transform:translateY(-1px)}
.hero-shot{
  width:100%;aspect-ratio:9/16;border-radius:var(--r-xl);overflow:hidden;position:relative;
  box-shadow:var(--sh-3);border:4px solid #fff;background:#DCE6FA;transform:rotate(-1.5deg);
}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-shot::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:42%;
  background:linear-gradient(to top,rgba(14,23,38,.55),rgba(14,23,38,0));
}
.hero-shot-meta{position:absolute;left:14px;bottom:14px;z-index:2;color:#fff;font-size:12px;letter-spacing:.04em}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-title{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35}
.section-desc{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:720px}
.section-link{font-size:14px;color:var(--c-primary);font-weight:500;white-space:nowrap}
.section-link:hover{color:var(--c-primary-dark);text-decoration:underline}

/* ============ 时间线 ============ */
.timeline-wrap{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:40px 36px;box-shadow:var(--sh-1)}
.timeline{position:relative}
.timeline::before{content:"";position:absolute;left:108px;top:10px;bottom:10px;width:1px;background:var(--c-line)}
.tl-item{position:relative;display:grid;grid-template-columns:96px 1fr;gap:24px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:102px;top:8px;width:12px;height:12px;box-sizing:border-box;
  border:2px solid var(--c-primary);border-radius:50%;background:#fff;z-index:2;
}
.tl-item.is-latest::before{background:var(--c-accent);border-color:var(--c-accent);box-shadow:0 0 0 4px var(--c-accent-soft)}
.tl-date{display:flex;flex-direction:column;align-items:flex-start;padding-top:2px}
.tl-day{font-size:15px;font-weight:600;color:var(--c-text);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.tl-year{font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.tl-body{display:grid;grid-template-columns:1fr 168px;gap:22px;align-items:start}
.tl-title{font-size:18px;font-weight:600;line-height:1.55;color:var(--c-text)}
.tl-desc{margin-top:8px;font-size:15px;color:var(--c-text-2);line-height:1.8}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{font-size:12px;color:var(--c-text-2);background:var(--c-bg);border-radius:999px;padding:4px 11px}
.tag.is-accent{color:#C3512A;background:var(--c-accent-soft)}
.tag.is-mint{color:#0B7A5B;background:rgba(18,184,134,.1)}
.tl-thumb{
  width:168px;height:126px;object-fit:cover;border-radius:var(--r-md);
  background:#E6EDFA;box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease;
}
.tl-item:hover .tl-thumb{transform:scale(1.03);box-shadow:var(--sh-2)}

/* ============ 核查习惯卡片 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-no{
  font-size:13px;font-weight:700;color:var(--c-primary);background:var(--c-primary-soft);
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.card h3{margin-top:16px;font-size:18px;font-weight:600}
.card p{margin-top:10px;font-size:15px;color:var(--c-text-2);line-height:1.8}
.card-list{margin-top:14px;display:grid;gap:8px}
.card-list li{position:relative;padding-left:16px;font-size:14px;color:var(--c-text-2)}
.card-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

/* ============ 风险信号对照 ============ */
.compare{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.compare-row{display:grid;grid-template-columns:minmax(0,300px) 1fr;gap:24px;padding:22px 26px;align-items:center}
.compare-row + .compare-row{border-top:1px solid var(--c-line)}
.compare-row:nth-child(odd){background:#FBFCFE}
.compare-key{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600}
.compare-key .dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);flex:0 0 auto}
.compare-val{font-size:15px;color:var(--c-text-2);line-height:1.8}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px;position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-num{
  font-size:34px;font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1;
  letter-spacing:-.02em;
}
.step h3{margin-top:14px;font-size:18px;font-weight:600}
.step p{margin-top:10px;font-size:15px;color:var(--c-text-2);line-height:1.8}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s,border-color .2s;
}
.faq-item[open]{border-color:#D3DEF5;box-shadow:var(--sh-1)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-text);
  cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 auto;width:24px;height:24px;border-radius:999px;background:var(--c-primary-soft);position:relative}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--c-primary);border-radius:2px;
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:transform .25s ease,opacity .25s ease}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{padding:0 22px 20px;font-size:15px;color:var(--c-text-2);line-height:1.85;max-width:760px}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(135deg,#EAF1FF 0%,#F7FAFF 100%);
  border:1px solid #DCE7FB;border-radius:var(--r-lg);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4}
.cta-band p{margin-top:10px;font-size:15px;color:var(--c-text-2);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -10px rgba(47,111,237,.7)}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px -10px rgba(255,122,69,.7)}
.btn-accent:hover{filter:brightness(.94);transform:translateY(-1px)}
.btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-accent)}
.btn-ghost:hover{border-color:#F5B79B;background:#FFF8F5;transform:translateY(-1px)}

/* ============ 页脚 ============ */
.site-footer{background:#0E1726;color:#C7D0DD;padding:64px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.2}
.footer-brand .brand-cn{font-size:16px;font-weight:700}
.footer-brand .brand-en{font-size:11px;letter-spacing:.06em}
.footer-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#C7D0DD;transition:color .2s}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags a{
  font-size:13px;color:#C7D0DD;background:rgba(255,255,255,.06);
  border-radius:999px;padding:5px 12px;transition:background .2s,color .2s;
}
.footer-tags a:hover{background:rgba(47,111,237,.4);color:#fff}
.footer-text{font-size:14px;color:#A7B2C2;line-height:1.85}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);margin-top:44px;padding:20px 0 26px;
  font-size:13px;color:#7C8798;
}

/* ============ 移动端吸底 ============ */
.sticky-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;
  background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-top:1px solid var(--c-line);padding:0 16px;align-items:center;gap:12px;box-shadow:0 -6px 20px -12px rgba(16,32,64,.2);
}
.sticky-bar span{font-size:13px;color:var(--c-text-2);flex:1}
.sticky-bar .btn{height:44px;padding:0 20px;font-size:14px;flex:0 0 auto}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .channels{display:none}
  .hamburger{display:flex}
  .hero-grid{grid-template-columns:1fr 200px;gap:32px}
  .grid-3,.steps{grid-template-columns:1fr 1fr}
  .timeline-wrap{padding:32px 26px}
  .tl-body{grid-template-columns:1fr 150px}
  .tl-thumb{width:150px;height:112px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .brand-en{display:none}
  .search-box{
    position:absolute;left:16px;right:16px;top:calc(100% + 10px);width:auto;
    background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-2);z-index:70;
  }
  .search-box input{width:100%}
  .hot-panel{left:16px;right:16px;width:auto;top:calc(100% + 10px)}
  .hero-grid{grid-template-columns:1fr;gap:28px;padding:28px 0 36px}
  .hero-shot{display:none}
  .timeline-wrap{padding:24px 18px}
  .timeline::before{left:5px}
  .tl-item{grid-template-columns:1fr;gap:10px;padding-left:24px;padding-bottom:28px}
  .tl-item::before{left:-1px;top:7px}
  .tl-date{flex-direction:row;align-items:baseline;gap:8px}
  .tl-body{grid-template-columns:1fr}
  .tl-thumb{width:100%;height:170px}
  .grid-3,.steps{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:18px}
  .cta-band{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px}
  .sticky-bar{display:flex}
  .site-footer{margin-bottom:64px}
}
@media (max-width:520px){
  .brand-cn{font-size:15px}
  .page-hero h1{font-size:24px}
  .card,.step{padding:20px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a{padding:0 18px 18px}
}

/* roulang page: category4 */
:root{
  --c-primary:#2F6FED;
  --c-primary-dark:#1E56C8;
  --c-accent:#FF7A45;
  --c-accent-soft:#FFF1EB;
  --c-mint:#12B886;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E4E9F2;
  --c-text:#0E1726;
  --c-sub:#4A5568;
  --c-mute:#8A94A6;
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-xl:24px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px -8px rgba(16,32,64,.12);
  --sh-3:0 18px 48px -16px rgba(16,32,64,.18);
  --sp-section:88px;
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--c-text);background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;}
.section{padding:var(--sp-section) 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;line-height:1.3;}
.section-desc{color:var(--c-sub);font-size:15px;max-width:720px;margin-top:10px;}
.section-link{color:var(--c-primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.section-link:hover{color:var(--c-primary-dark);}
.section-link i{font-size:12px;transition:transform .18s ease;}
.section-link:hover i{transform:translateX(3px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 6px 20px -16px rgba(16,32,64,.35);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;transition:height .22s ease;
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:0 6px 16px -8px rgba(47,111,237,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-cn{font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand-en{font-size:11px;color:var(--c-mute);letter-spacing:.08em;text-transform:uppercase;}

.channels{display:flex;align-items:center;gap:6px;flex:1;overflow-x:auto;scrollbar-width:none;}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;padding:8px 12px;border-radius:var(--r-sm);
  font-size:15px;color:var(--c-sub);font-weight:500;white-space:nowrap;
}
.channel:hover{color:var(--c-primary);background:#F2F6FF;}
.channel.is-active{color:var(--c-primary);font-weight:600;}
.channel.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.search-wrap{position:relative;display:flex;align-items:center;}
.search-input{
  width:0;padding:0;border:0;opacity:0;
  height:42px;border-radius:999px;background:var(--c-bg);
  font-size:14px;color:var(--c-text);
  transition:width .24s ease,opacity .2s ease,padding .24s ease;
}
.search-wrap.is-open .search-input{width:260px;padding:0 16px;opacity:1;border:1px solid var(--c-line);}
.search-input:focus{outline:none;border-color:var(--c-primary);background:#fff;}
.icon-btn{
  width:42px;height:42px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-sub);font-size:16px;transition:background-color .18s ease,color .18s ease;
}
.icon-btn:hover{background:#F2F6FF;color:var(--c-primary);}
.trend-wrap{position:relative;}
.trend-panel{
  position:absolute;right:0;top:52px;width:320px;padding:18px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.trend-wrap.is-open .trend-panel{opacity:1;visibility:visible;transform:translateY(0);}
.trend-title{font-size:13px;color:var(--c-mute);margin-bottom:12px;font-weight:600;}
.pill-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  background:var(--c-bg);color:var(--c-sub);
  font-size:13px;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease;
}
.pill:hover{background:#EAF1FF;color:var(--c-primary);}
.hamburger{display:none;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,23,38,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:86vw;
  background:#fff;z-index:90;padding:24px;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;box-shadow:var(--sh-3);
}
.drawer.is-open{transform:translateX(0);}
.drawer-close{position:absolute;top:16px;right:16px;}
.drawer-title{font-size:13px;font-weight:600;color:var(--c-mute);margin:26px 0 12px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{padding:11px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--c-sub);}
.drawer-links a:hover,.drawer-links a.is-active{background:#F2F6FF;color:var(--c-primary);font-weight:600;}

/* ---------- hero ---------- */
.hero-cat{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--c-line);
  background:#fff;
}
.hero-cat-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 46%,rgba(246,248,252,.55) 100%),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.hero-cat-inner{
  position:relative;display:grid;grid-template-columns:minmax(0,1fr) 220px;
  gap:48px;align-items:center;padding:56px 0 52px;min-height:280px;
}
.breadcrumb{font-size:13px;color:var(--c-mute);margin-bottom:16px;display:flex;gap:8px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .current{color:var(--c-text);font-weight:500;}
.hero-cat h1{font-size:clamp(26px,3.4vw,40px);line-height:1.28;font-weight:700;letter-spacing:-.015em;}
.hero-cat .lead{color:var(--c-sub);font-size:16px;margin-top:16px;max-width:680px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-pill{
  padding:7px 14px;border-radius:999px;background:#EAF1FF;color:var(--c-primary);
  font-size:13px;font-weight:600;
}
.hero-pill.accent{background:var(--c-accent-soft);color:#E0602C;}
.hero-thumb{
  border-radius:var(--r-xl);overflow:hidden;position:relative;
  aspect-ratio:9/16;box-shadow:var(--sh-2);border:1px solid var(--c-line);
  transform:rotate(-2deg);
}
.hero-thumb img{width:100%;height:100%;object-fit:cover;}
.hero-thumb-mask{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(14,23,38,.62) 0%,rgba(14,23,38,.06) 52%,transparent 100%);
}
.hero-thumb-label{
  position:absolute;left:14px;bottom:14px;color:#fff;font-size:12px;font-weight:600;
  letter-spacing:.02em;
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D3DDF2;}
.step-num{
  width:34px;height:34px;border-radius:10px;background:var(--c-accent-soft);color:#E0602C;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;margin-bottom:16px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--c-sub);line-height:1.8;}

/* ---------- compare ---------- */
.compare-groups{display:flex;flex-direction:column;gap:44px;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.group-dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);}
.group-head h3{font-size:19px;font-weight:600;}
.group-head .group-count{font-size:13px;color:var(--c-mute);margin-left:auto;}
.compare-table{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.compare-row{
  display:grid;grid-template-columns:minmax(200px,320px) 1fr;
  border-top:1px solid var(--c-line);
  transition:background-color .18s ease;
}
.compare-row:first-child{border-top:0;}
.compare-row:nth-child(odd){background:#FAFBFE;}
.compare-row:hover{background:#F4F8FF;}
.compare-key{
  padding:22px 24px;font-weight:600;font-size:15px;
  display:flex;align-items:flex-start;gap:10px;border-right:1px solid var(--c-line);
}
.compare-key i{color:var(--c-accent);font-size:13px;margin-top:6px;flex-shrink:0;}
.compare-val{padding:22px 24px;font-size:15px;color:var(--c-sub);}
.compare-val strong{color:var(--c-text);font-weight:600;}
.tag-inline{
  display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;
  background:#EAF1FF;color:var(--c-primary);font-weight:600;margin-right:8px;
}
.tag-inline.mint{background:#E6F8F1;color:#0E9A72;}
.tag-inline.warn{background:var(--c-accent-soft);color:#E0602C;}

/* ---------- myth ---------- */
.myth-band{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.myth-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.myth-card{
  border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px 24px;
  background:var(--c-bg);
}
.myth-card h4{font-size:15px;font-weight:600;margin-bottom:8px;display:flex;gap:10px;align-items:center;}
.myth-card h4 i{color:#D94848;font-size:14px;}
.myth-card p{font-size:14px;color:var(--c-sub);line-height:1.8;}
.myth-card .fix{display:block;margin-top:10px;font-size:13px;color:var(--c-mint);font-weight:600;}

/* ---------- faq ---------- */
.faq-list{max-width:860px;}
.faq-item{
  border:1px solid var(--c-line);border-radius:var(--r-md);background:#fff;
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item.is-open{border-color:#CBD9F5;box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:600;text-align:left;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  width:26px;height:26px;border-radius:50%;background:var(--c-bg);color:var(--c-sub);
  display:flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0;
  transition:transform .25s ease,background-color .2s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 22px 22px;font-size:15px;color:var(--c-sub);line-height:1.85;max-width:760px;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-accent-soft);border-radius:var(--r-lg);
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;border:1px solid #FFDCCB;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;line-height:1.35;}
.cta-band p{color:var(--c-sub);font-size:15px;margin-top:12px;max-width:600px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px -14px rgba(47,111,237,.9);}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,122,69,.9);}
.btn-accent:hover{background:#F0682F;transform:translateY(-1px);}
.btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-outline-accent{background:transparent;border:1px solid #FFC9AF;color:#E0602C;}
.btn-outline-accent:hover{background:#fff;border-color:var(--c-accent);transform:translateY(-1px);}

/* ---------- footer ---------- */
.site-footer{background:#0E1726;color:#C7D0DE;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.3fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand .brand-text .brand-cn{color:#fff;font-size:16px;}
.footer-brand .brand-text .brand-en{color:#7C8798;}
.footer-text{font-size:14px;line-height:1.85;color:#98A4B8;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:#98A4B8;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags a{
  font-size:13px;padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.07);color:#B7C2D4;
}
.footer-tags a:hover{background:var(--c-primary);color:#fff;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8798;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sp-section:64px;}
  .container{padding:0 24px;}
  .hero-cat-inner{grid-template-columns:1fr;gap:32px;padding:44px 0;}
  .hero-thumb{max-width:220px;transform:none;}
  .steps{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .channels{display:none;}
  .hamburger{display:flex;}
  .search-wrap.is-open .search-input{width:160px;}
  .compare-row{grid-template-columns:1fr;}
  .compare-key{border-right:0;border-bottom:1px solid var(--c-line);padding-bottom:14px;}
  .myth-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:640px){
  :root{--sp-section:52px;}
  .container{padding:0 16px;}
  .brand-en{display:none;}
  .steps{grid-template-columns:1fr;}
  .hero-cat-inner{min-height:auto;padding:36px 0 40px;}
  .hero-thumb{max-width:180px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .faq-q{font-size:15px;padding:18px;}
  .compare-key,.compare-val{padding:18px 18px;}
}