/* roulang page: index */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1220;
  --bg-2:#0E1728;
  --surface:rgba(255,255,255,.05);
  --surface-strong:rgba(12,22,38,.72);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#15D6C0;
  --brand-hover:#0FB9A6;
  --brand-deep:#0B8F82;
  --accent:#FFB020;
  --violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A8B6CC;
  --text-3:#6E7F99;
  --ok:#2ED47A;
  --warn:#FF7A45;
  --r-xl:20px;
  --r-lg:16px;
  --r-sm:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.48);
  --glow:0 0 0 1px rgba(21,214,192,.5), 0 10px 30px rgba(21,214,192,.28);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);letter-spacing:.2px;}
p{margin:0 0 18px;color:var(--text-2);}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea{font-family:inherit;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (max-width:575px){.container{padding-left:16px;padding-right:16px;}}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghostline,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);font-weight:600;font-size:15px;
  padding:12px 24px;border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.btn-brand{background:var(--brand);color:#04211D;box-shadow:var(--glow);}
.btn-brand:hover{background:var(--brand-hover);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(21,214,192,.45),0 16px 38px rgba(21,214,192,.34);color:#04211D;}
.btn-brand:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(21,214,192,.4),0 6px 18px rgba(21,214,192,.24);}
.btn-ghostline{background:transparent;border-color:rgba(21,214,192,.55);color:var(--brand);}
.btn-ghostline:hover{background:rgba(21,214,192,.10);color:var(--brand);transform:translateY(-2px);}
.btn-ghostline:active{transform:translateY(0);}
.btn-soft{background:rgba(255,255,255,.06);border-color:var(--line);color:var(--text-1);}
.btn-soft:hover{background:rgba(255,255,255,.12);color:var(--text-1);transform:translateY(-2px);}
.btn-brand[disabled],.btn-ghostline[disabled]{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,7,14,.86);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line-soft);
  transition:padding .18s ease-out;
}
.brand-row{display:flex;align-items:center;gap:20px;padding:16px 0;transition:padding .18s ease-out;}
.site-header.is-compact .brand-row{padding:9px 0;}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(135deg,rgba(21,214,192,.95),rgba(122,92,255,.75));
  display:flex;align-items:center;justify-content:center;
  color:#03211E;font-weight:800;font-size:19px;
  box-shadow:0 8px 22px rgba(21,214,192,.28);
  transition:width .18s ease-out,height .18s ease-out,flex-basis .18s ease-out;
}
.site-header.is-compact .brand-mark{width:36px;height:36px;flex-basis:36px;font-size:17px;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:.4px;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.6px;}
.brand-tools{display:flex;align-items:center;gap:14px;}
.tool-icon{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);color:var(--text-2);
  transition:color .16s ease-out,border-color .16s ease-out,background-color .16s ease-out;
}
.tool-icon:hover{color:var(--brand);border-color:rgba(21,214,192,.45);background:rgba(21,214,192,.08);}
.tool-link{font-size:14px;color:var(--text-2);}
.tool-link:hover{color:var(--brand);}
.channel-row{
  border-top:1px solid var(--line-soft);
  background:rgba(10,18,32,.72);
}
.channel-track{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:8px 0;}
.channel-track::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;scroll-snap-align:start;
  padding:9px 18px;border-radius:999px;font-size:14.5px;color:var(--text-2);
  border:1px solid transparent;white-space:nowrap;
  transition:color .16s ease-out,background-color .16s ease-out,border-color .16s ease-out;
}
.channel-link:hover{color:var(--text-1);background:rgba(255,255,255,.06);}
.channel-link.active{background:rgba(21,214,192,.14);border-color:rgba(21,214,192,.45);color:var(--brand);font-weight:600;}
.nav-toggle{display:none;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  min-height:520px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line-soft);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,7,14,.96) 0%,rgba(5,7,14,.86) 42%,rgba(5,7,14,.42) 100%);
}
.hero-grid{
  position:absolute;right:40px;bottom:40px;width:240px;height:240px;
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  opacity:.08;pointer-events:none;
}
.hero-grid span{border:1px solid #fff;}
.hero-inner{position:relative;z-index:2;padding:96px 0 88px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,176,32,.42);background:rgba(255,176,32,.10);
  color:var(--accent);font-size:12.5px;letter-spacing:.6px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(28px,4.4vw,52px);line-height:1.18;font-weight:700;
  max-width:14em;margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{font-size:clamp(15px,1.4vw,17px);line-height:1.9;color:var(--text-2);max-width:36em;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2);}
.hero-points i{color:var(--brand);font-size:13px;}

/* ---------- 倒计时条 ---------- */
.countdown-bar{
  position:sticky;top:0;z-index:1020;
  background:linear-gradient(90deg,rgba(14,23,40,.96),rgba(10,18,32,.92));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.countdown-inner{display:flex;align-items:center;gap:18px;padding:14px 0;flex-wrap:wrap;}
.countdown-label{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.countdown-label i{color:var(--accent);}
.countdown-digits{display:flex;align-items:center;gap:8px;margin-left:auto;}
.digit-block{
  min-width:58px;padding:7px 10px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);text-align:center;
}
.digit-num{font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--accent);line-height:1.2;}
.digit-tag{font-size:11px;color:var(--text-3);letter-spacing:.5px;}
.digit-sep{color:var(--text-3);font-weight:700;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap;}
.section-title{font-size:clamp(22px,3vw,34px);line-height:1.3;}
.section-desc{font-size:15px;color:var(--text-3);max-width:52em;margin-top:12px;}
.section-more{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.section-more:hover{gap:10px;}
.bg-band{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.eyebrow-line{display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--brand-deep);text-transform:uppercase;margin-bottom:12px;}

/* ---------- 卖点 ---------- */
.glass-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:24px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.glass-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover),inset 0 1px 0 rgba(255,255,255,.08);border-color:var(--line);}
.feature-main{height:100%;padding:34px;display:flex;flex-direction:column;}
.feature-index{font-family:var(--font-num);font-size:14px;letter-spacing:2px;color:var(--accent);margin-bottom:18px;}
.feature-icon{
  width:60px;height:60px;border-radius:18px;display:flex;align-items:center;justify-content:center;
  background:rgba(21,214,192,.12);border:1px solid rgba(21,214,192,.35);color:var(--brand);font-size:24px;margin-bottom:20px;
}
.feature-main h3{font-size:22px;line-height:1.4;margin-bottom:12px;}
.feature-main p{font-size:15px;color:var(--text-2);margin-bottom:24px;}
.progress-thin{height:4px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:auto;}
.progress-thin span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--violet));}
.feature-list{display:flex;flex-direction:column;gap:14px;height:100%;}
.feature-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--r-lg);
  background:var(--surface-strong);border:1px solid var(--line-soft);
  transition:border-color .16s ease-out,transform .16s ease-out;
}
.feature-item:hover{border-color:rgba(21,214,192,.4);transform:translateY(-2px);}
.feature-item + .feature-item{margin-top:0;}
.feature-dot{
  flex:0 0 40px;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(21,214,192,.12);color:var(--brand);font-size:16px;
}
.feature-item h4{font-size:16px;font-weight:600;margin-bottom:5px;}
.feature-item p{font-size:14px;color:var(--text-3);margin:0;line-height:1.75;}

/* ---------- 图墙 ---------- */
.wall-row-a{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px;margin-bottom:20px;}
.wall-row-b{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.wall-item{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line-soft);
  box-shadow:var(--shadow-card);display:block;
}
.wall-a{height:400px;}
.wall-b{height:220px;}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.wall-item::after{
  content:"";position:absolute;inset:0;background:rgba(5,7,14,.2);
  transition:background-color .22s ease-out;
}
.wall-item:hover::after{background:rgba(5,7,14,.5);}
.wall-item:hover img{transform:scale(1.04);}
.wall-tag{
  position:absolute;left:16px;bottom:16px;z-index:3;
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;
  background:rgba(12,22,38,.82);border:1px solid var(--line);color:var(--text-1);
  transform:translateY(6px);opacity:0;transition:transform .22s ease-out,opacity .22s ease-out;
  backdrop-filter:blur(10px);
}
.wall-item:hover .wall-tag{transform:translateY(0);opacity:1;}
.wall-tag i{color:var(--brand);font-size:11px;}

/* ---------- CTA 表单 ---------- */
.cta-panel{
  border-radius:var(--r-xl);
  background:linear-gradient(120deg,rgba(21,214,192,.10),rgba(122,92,255,.08) 60%,rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:40px;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:14px;}
.cta-panel p{font-size:15px;color:var(--text-2);margin-bottom:22px;}
.cta-tips li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);margin-bottom:10px;}
.cta-tips i{color:var(--brand);margin-top:5px;font-size:12px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;}
.form-control-glass{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out;
}
.form-control-glass::placeholder{color:var(--text-3);}
.form-control-glass:focus{
  outline:none;border-color:var(--brand);background:rgba(21,214,192,.06);
  box-shadow:0 0 0 3px rgba(21,214,192,.16);
}
.form-hint{font-size:13px;color:var(--text-3);margin-top:8px;}
.form-status{font-size:13px;min-height:20px;margin-top:10px;color:var(--ok);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:var(--surface-strong);border:1px solid var(--line-soft);
  border-radius:var(--r-lg);margin-bottom:14px;overflow:hidden;
  transition:border-color .18s ease-out;
}
.faq-item.open{border-color:rgba(21,214,192,.42);}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:20px 22px;background:none;border:0;text-align:left;cursor:pointer;
  color:var(--text-1);font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q .q-icon{color:var(--brand);font-size:15px;flex:0 0 auto;}
.faq-q .q-plus{margin-left:auto;color:var(--text-3);transition:transform .22s ease-out,color .22s ease-out;}
.faq-item.open .q-plus{transform:rotate(45deg);color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-a-inner{padding:0 22px 22px 50px;font-size:15px;line-height:1.85;color:var(--text-2);border-left:3px solid transparent;}
.faq-item.open .faq-a-inner{border-left-color:var(--brand);margin-left:22px;padding-left:20px;}

/* ---------- 资讯列表 ---------- */
.news-lead{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  background:var(--surface-strong);border:1px solid var(--line);
  box-shadow:var(--shadow-card);height:100%;display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.news-lead:hover,.news-side:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(21,214,192,.35);}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-lead:hover .news-cover img,.news-side:hover .news-cover img{transform:scale(1.03);}
.news-badge{
  position:absolute;left:16px;top:16px;
  padding:5px 13px;border-radius:999px;font-size:12px;
  background:rgba(12,22,38,.85);border:1px solid rgba(21,214,192,.42);color:var(--brand);
  backdrop-filter:blur(10px);
}
.news-lead-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.news-lead-body h3{font-size:22px;line-height:1.45;margin-bottom:12px;}
.news-lead-body h3 a{color:var(--text-1);}
.news-lead-body h3 a:hover{color:var(--brand);}
.news-lead-body p{font-size:15px;color:var(--text-2);margin-bottom:20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-3);margin-top:auto;}
.news-meta i{color:var(--brand-deep);margin-right:6px;}
.news-more{margin-left:auto;color:var(--brand);font-size:13.5px;display:inline-flex;align-items:center;gap:6px;}
.news-side{
  display:flex;gap:16px;padding:16px;border-radius:var(--r-lg);
  background:var(--surface-strong);border:1px solid var(--line-soft);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.news-side + .news-side{margin-top:18px;}
.news-side-thumb{flex:0 0 112px;width:112px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:var(--bg-2);}
.news-side-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-side-body{display:flex;flex-direction:column;min-width:0;}
.news-side-body h4{font-size:15.5px;line-height:1.55;font-weight:600;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side-body h4 a{color:var(--text-1);}
.news-side-body h4 a:hover{color:var(--brand);}
.news-side-meta{font-size:12.5px;color:var(--text-3);display:flex;gap:12px;align-items:center;margin-top:auto;}
.news-side-meta span{color:var(--brand-deep);}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--r-xl);background:rgba(255,255,255,.02);text-align:center;padding:40px 20px;
}
.empty-state i{font-size:44px;color:var(--text-3);}
.empty-state p{font-size:15px;color:var(--text-3);margin:0;}

/* ---------- 分类入口 ---------- */
.cat-card{
  display:flex;flex-direction:column;height:100%;
  padding:26px;border-radius:var(--r-lg);
  background:var(--surface-strong);border:1px solid var(--line-soft);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.cat-card:hover{transform:translateY(-3px);border-color:rgba(21,214,192,.45);box-shadow:0 0 0 1px rgba(21,214,192,.25),0 16px 36px rgba(0,0,0,.42);}
.cat-icon{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(21,214,192,.10);border:1px solid rgba(21,214,192,.28);color:var(--brand);font-size:19px;margin-bottom:18px;
}
.cat-card h3{font-size:18px;margin-bottom:10px;}
.cat-card h3 a{color:var(--text-1);}
.cat-card h3 a:hover{color:var(--brand);}
.cat-card p{font-size:14px;color:var(--text-3);margin-bottom:18px;line-height:1.8;}
.cat-card .cat-go{margin-top:auto;font-size:13.5px;color:var(--brand);display:inline-flex;align-items:center;gap:7px;}

/* ---------- 数据条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-cell{
  padding:22px 20px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line-soft);text-align:center;
}
.stat-num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand);line-height:1.2;}
.stat-num small{font-size:14px;color:var(--text-2);margin-left:4px;font-family:var(--font-sans);font-weight:500;}
.stat-label{font-size:13.5px;color:var(--text-3);margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:38px;height:38px;flex-basis:38px;font-size:17px;}
.footer-brand span{font-size:17px;font-weight:700;}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.85;max-width:34em;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text-1);}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-soft);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--text-3);margin:0;}
.footer-bottom .legal{font-size:13px;color:var(--text-3);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{width:180px;height:180px;right:24px;bottom:24px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .hero{min-height:460px;}
  .hero-inner{padding:72px 0 68px;}
  .wall-row-a{grid-template-columns:1fr 1fr;}
  .wall-a{height:300px;}
  .wall-a:first-child{grid-column:span 2;}
  .wall-row-b{grid-template-columns:repeat(2,1fr);}
  .wall-b{height:190px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .countdown-bar{position:static;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  body{font-size:15px;}
  .brand-sub{display:none;}
  .tool-link{display:none;}
  .hero h1{max-width:none;}
  .cta-panel{padding:26px;}
  .feature-main{padding:26px;}
  .news-side{flex-direction:column;}
  .news-side-thumb{flex:none;width:100%;}
}
@media (max-width:575px){
  .hero-inner{padding:56px 0 52px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghostline{width:100%;}
  .wall-row-a,.wall-row-b{grid-template-columns:1fr;}
  .wall-a,.wall-b,.wall-a:first-child{grid-column:auto;height:220px;}
  .footer-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .countdown-digits{width:100%;justify-content:flex-start;}
  .digit-block{min-width:52px;}
  .digit-num{font-size:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1220;
  --bg-2:#0E1728;
  --surface:rgba(255,255,255,.05);
  --surface-strong:rgba(12,22,38,.72);
  --line:rgba(255,255,255,.10);
  --brand:#15D6C0;
  --brand-hover:#0FB9A6;
  --brand-deep:#0B8F82;
  --accent:#FFB020;
  --violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A8B6CC;
  --text-3:#6E7F99;
  --ok:#2ED47A;
  --warn:#FF7A45;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(21,214,192,.5),0 10px 30px rgba(21,214,192,.28);
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-hover);
  --bs-border-color:var(--line);
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  min-height:100%;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(760px 420px at 12% -6%,rgba(21,214,192,.14),transparent 62%),
    radial-gradient(620px 360px at 96% 8%,rgba(122,92,255,.12),transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--brand-hover)}
button,input,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{color:var(--text-1);font-weight:700;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;width:100%;padding-left:20px;padding-right:20px;margin:0 auto;position:relative;z-index:1}
@media (min-width:1400px){.container{max-width:1320px}}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,7,14,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.site-header.scrolled{border-bottom-color:var(--line);background:rgba(5,7,14,.94)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;transition:height .18s ease-out}
.site-header.scrolled .brand-row{height:56px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-1);min-width:0}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:18px;color:#04211E;
  background:linear-gradient(140deg,var(--brand),#6FF0E0 55%,var(--brand-deep));
  box-shadow:0 0 0 1px rgba(21,214,192,.45),0 6px 18px rgba(21,214,192,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.brand-sub{font-size:12px;color:var(--text-3);white-space:nowrap}
.brand-tools{display:flex;align-items:center;gap:14px}
.tool-icon{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--text-2);border:1px solid var(--line);background:var(--surface);
  transition:all .16s ease-out;
}
.tool-icon:hover{color:var(--brand);border-color:rgba(21,214,192,.55)}
.tool-link{font-size:14px;color:var(--text-2)}
.tool-link:hover{color:var(--brand)}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:11px 20px;border-radius:var(--r-pill);border:1px solid transparent;
  background:var(--brand);color:#04211E;font-weight:700;font-size:15px;
  box-shadow:var(--glow);transition:all .16s ease-out;cursor:pointer;
}
.btn-brand:hover{background:var(--brand-hover);color:#031A17;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(21,214,192,.65),0 14px 34px rgba(21,214,192,.36)}
.btn-brand:active{transform:translateY(0)}
.btn-brand.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:11px 20px;border-radius:var(--r-pill);
  border:1px solid rgba(21,214,192,.55);background:transparent;color:var(--brand);
  font-weight:600;font-size:15px;transition:all .16s ease-out;cursor:pointer;
}
.btn-ghost:hover{background:rgba(21,214,192,.09);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.channel-row{
  background:rgba(10,18,32,.72);
  border-top:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.channel-track{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:9px 0;scrollbar-width:none;-ms-overflow-style:none}
.channel-track::-webkit-scrollbar{display:none}
.channel-link{
  padding:8px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);
  white-space:nowrap;scroll-snap-align:start;border:1px solid transparent;transition:all .16s ease-out;
}
.channel-link:hover{color:var(--text-1);background:rgba(255,255,255,.06)}
.channel-link.active{color:#04211E;background:var(--brand);font-weight:700;border-color:rgba(21,214,192,.6)}

/* ---------- 页面头部 ---------- */
.page-head{padding:34px 0 10px}
.breadcrumb-line{font-size:14px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px}
.breadcrumb-line a{color:var(--text-2)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:var(--text-3)}
.breadcrumb-line .current{color:var(--text-1)}
.page-title{font-size:clamp(26px,3.6vw,42px);line-height:1.24;letter-spacing:-.01em;margin-bottom:18px;word-break:break-word}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--text-2);padding-bottom:22px;border-bottom:1px solid var(--line)}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;
}
.chip-brand{background:rgba(21,214,192,.14);border:1px solid rgba(21,214,192,.45);color:var(--brand)}
.chip-accent{background:rgba(255,176,32,.12);border:1px solid rgba(255,176,32,.42);color:var(--accent)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item i{color:var(--text-3)}

/* ---------- 布局 ---------- */
.layout-row{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding:40px 0 0}
@media (min-width:1200px){
  .layout-row{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:36px;align-items:start}
  .layout-side{position:sticky;top:132px}
}
.article-card{
  background:var(--surface-strong);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:32px 28px;
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 8px 24px rgba(0,0,0,.35);
}
@media (max-width:575.98px){.article-card{padding:22px 18px;border-radius:var(--r-md)}}
.article-body{max-width:800px;margin:0 auto;font-size:17px;line-height:1.9;color:#DCE7F7}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);line-height:1.35;margin:40px 0 18px;
  padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;margin:30px 0 14px;color:#E9F2FF}
.article-body h4{font-size:17px;margin:24px 0 12px;color:var(--text-1)}
.article-body strong{color:#FFFFFF}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;list-style:revert}
.article-body li{margin-bottom:10px}
.article-body img{border-radius:14px;margin:22px auto;box-shadow:var(--shadow)}
.article-body figure{margin:22px 0}
.article-body figcaption,.article-body .caption{
  text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;
}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-left:3px solid var(--accent);
  background:var(--surface);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  background:rgba(255,255,255,.035);border-radius:12px;margin:24px 0;font-size:15px;
}
.article-body table th,.article-body table td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body table th{color:var(--brand);font-weight:600;background:rgba(21,214,192,.06)}
.article-body pre{
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;
  padding:18px;overflow-x:auto;font-size:14px;line-height:1.7;color:#CFE3F5;margin:22px 0;
}
.article-body code{background:rgba(21,214,192,.10);border-radius:6px;padding:2px 6px;font-size:14px;color:#9FF3E7}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

/* ---------- 标签与返回 ---------- */
.article-foot{max-width:800px;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.tag-group{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:all .16s ease-out;
}
.tag:hover{color:var(--brand);border-color:rgba(21,214,192,.5);background:rgba(21,214,192,.08)}
.link-back{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.link-back:hover{gap:12px}

/* ---------- 侧栏 ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;margin-bottom:20px;
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.side-title{font-size:15px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand);display:inline-block}
.side-list li{border-bottom:1px solid rgba(255,255,255,.07);padding:10px 0}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{display:flex;gap:10px;align-items:flex-start;color:var(--text-2);font-size:14.5px;line-height:1.7}
.side-list a:hover{color:var(--brand)}
.side-list .idx{
  flex:0 0 auto;width:20px;height:20px;margin-top:3px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;
  color:var(--accent);background:rgba(255,176,32,.12);border:1px solid rgba(255,176,32,.3);
}
.side-cta{
  background:linear-gradient(150deg,rgba(21,214,192,.16),rgba(122,92,255,.10));
  border:1px solid rgba(21,214,192,.32);
}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:16px}
.side-cta .btn-brand{width:100%}
.side-nav a{display:block;padding:9px 0;font-size:14.5px;color:var(--text-2);border-bottom:1px dashed rgba(255,255,255,.08)}
.side-nav a:last-child{border-bottom:0}
.side-nav a:hover{color:var(--brand)}
@media (max-width:1199.98px){
  .layout-side{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
  .layout-side .side-card{margin-bottom:0}
}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;gap:14px;color:var(--text-2);
}
.empty-state i{font-size:56px;color:var(--text-3)}
.empty-state p{font-size:15px}

/* ---------- 相关推荐 ---------- */
.section{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:clamp(21px,2.6vw,29px);line-height:1.3}
.section-head .more{font-size:14px;color:var(--text-2)}
.section-head .more:hover{color:var(--brand)}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.rel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
  display:flex;flex-direction:column;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(21,214,192,.42);box-shadow:0 14px 34px rgba(0,0,0,.42)}
.rel-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.rel-card:hover .rel-media img{transform:scale(1.04)}
.rel-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,14,.05),rgba(5,7,14,.55))}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;line-height:1.5}
.rel-card:hover .rel-body h3{color:var(--brand)}
.rel-body p{font-size:14px;color:var(--text-2);line-height:1.75}
.rel-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}

/* ---------- 上下篇 ---------- */
.pager{display:grid;grid-template-columns:1fr;gap:16px;padding:64px 0 0}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr}}
.pager a{
  display:block;padding:20px 22px;border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--surface);color:var(--text-1);transition:all .16s ease-out;
}
.pager a:hover{border-color:rgba(21,214,192,.45);transform:translateY(-3px);color:var(--text-1);background:rgba(21,214,192,.07)}
.pager .label{font-size:12.5px;color:var(--text-3);display:block;margin-bottom:8px}
.pager .title{font-size:16px;font-weight:600;line-height:1.6}

/* ---------- CTA 条 ---------- */
.cta-band{margin-top:72px}
.cta-inner{
  display:grid;grid-template-columns:1fr;gap:22px;align-items:center;
  padding:32px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(21,214,192,.16),rgba(10,18,32,.85) 55%,rgba(122,92,255,.14));
  border:1px solid rgba(21,214,192,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 8px 24px rgba(0,0,0,.35);
}
@media (min-width:992px){.cta-inner{grid-template-columns:1fr auto;gap:34px;padding:38px 40px}}
.cta-inner h2{font-size:clamp(20px,2.4vw,27px);line-height:1.35;margin-bottom:10px}
.cta-inner p{color:var(--text-2);font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:88px;background:var(--bg-1);border-top:1px solid var(--line);position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:56px 0 34px}
@media (min-width:576px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:15px;border-radius:10px}
.footer-about{font-size:14px;color:var(--text-2);line-height:1.85;max-width:380px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1)}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .legal{margin:0}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(12,22,38,.8);border:1px solid rgba(21,214,192,.5);color:var(--brand);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 0 0 1px rgba(21,214,192,.25),0 10px 26px rgba(0,0,0,.4);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .2s ease-out;cursor:pointer;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:rgba(21,214,192,.16)}

@media (max-width:991.98px){
  .brand-sub{display:none}
  .tool-link{display:none}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-name{font-size:15px}
  .brand-tools{gap:10px}
  .article-body{font-size:16px;line-height:1.85}
  .section{padding-top:56px}
  .cta-band{margin-top:56px}
  .to-top{right:14px;bottom:16px;width:44px;height:44px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1220;
  --bg-2:#0E1728;
  --surface:rgba(255,255,255,.05);
  --surface-strong:rgba(12,22,38,.72);
  --line:rgba(255,255,255,.10);
  --brand:#15D6C0;
  --brand-hover:#0FB9A6;
  --brand-deep:#0B8F82;
  --accent:#FFB020;
  --violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A8B6CC;
  --text-3:#6E7F99;
  --ok:#2ED47A;
  --warn:#FF7A45;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-lift:0 14px 34px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(21,214,192,.5),0 10px 30px rgba(21,214,192,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out,opacity .16s ease-out;}
a:hover{color:var(--brand-hover);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:.2px;}
p{margin:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
::selection{background:rgba(21,214,192,.28);color:#fff;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(5,7,14,.88);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
  transition:padding .18s ease-out;
}
.site-header.is-scrolled .brand-row{padding:8px 0;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;
  flex:0 0 42px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,#15D6C0 0%,#0B8F82 100%);
  color:#04121A;
  font-weight:800;
  font-size:20px;
  box-shadow:0 0 0 1px rgba(21,214,192,.5),0 8px 22px rgba(21,214,192,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-1);}
.brand-sub{font-size:12px;color:var(--text-3);}
.brand-tools{display:flex;align-items:center;gap:14px;}
.tool-icon{
  width:38px;height:38px;
  border-radius:var(--r-sm);
  display:grid;place-items:center;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-2);
  transition:color .16s ease-out,border-color .16s ease-out,transform .16s ease-out;
}
.tool-icon:hover{color:var(--brand);border-color:rgba(21,214,192,.45);transform:translateY(-2px);}
.tool-link{font-size:14px;color:var(--text-2);}
.tool-link:hover{color:var(--brand);}
.btn-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--brand);
  color:#04121A;
  font-weight:700;
  font-size:14px;
  padding:10px 20px;
  border-radius:999px;
  border:1px solid transparent;
  box-shadow:var(--glow);
  transition:transform .16s ease-out,background .16s ease-out,box-shadow .16s ease-out;
}
.btn-brand:hover{background:var(--brand-hover);color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(21,214,192,.45),0 14px 34px rgba(21,214,192,.35);}
.btn-brand:active{transform:translateY(0);}
.btn-brand.btn-sm{padding:8px 16px;font-size:13.5px;}

.channel-row{
  background:rgba(10,18,32,.72);
  border-top:1px solid var(--line);
}
.channel-track{
  display:flex;
  gap:6px;
  overflow-x:auto;
  padding:10px 0;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
}
.channel-track::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;
  padding:8px 15px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  border:1px solid transparent;
  scroll-snap-align:start;
  transition:color .16s ease-out,background .16s ease-out,border-color .16s ease-out;
}
.channel-link:hover{color:var(--brand);background:rgba(21,214,192,.08);}
.channel-link.active{
  color:#04121A;
  background:var(--brand);
  font-weight:600;
  box-shadow:0 6px 18px rgba(21,214,192,.25);
}
@media (max-width:991px){
  .brand-sub{display:none;}
  .tool-link{display:none;}
}

/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:center;
  padding:56px 0;
  background-image:
    linear-gradient(100deg,rgba(5,7,14,.95) 0%,rgba(5,7,14,.78) 52%,rgba(5,7,14,.38) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:320px;height:320px;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:52px 52px;
  opacity:.9;
  pointer-events:none;
  mask-image:radial-gradient(circle at 70% 70%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 70% 70%,#000 0%,transparent 72%);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-3);
  margin-bottom:18px;
  position:relative;
  z-index:1;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--text-1);}
.cat-title{
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.18;
  font-weight:700;
  max-width:820px;
  position:relative;
  z-index:1;
}
.cat-desc{
  margin-top:16px;
  max-width:720px;
  font-size:clamp(15px,1.4vw,17px);
  color:var(--text-2);
  position:relative;
  z-index:1;
}
.cat-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
  position:relative;
  z-index:1;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  white-space:nowrap;
}
.chip-accent{
  color:var(--accent);
  border-color:rgba(255,176,32,.42);
  background:rgba(255,176,32,.08);
}
.chip-brand{
  color:var(--brand);
  border-color:rgba(21,214,192,.38);
  background:rgba(21,214,192,.08);
}

/* ============ 分类胶囊条 ============ */
.pill-nav{
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
}
.pill-track{
  display:flex;
  gap:10px;
  padding:18px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.pill-track::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  border:1px solid var(--line);
  background:transparent;
  white-space:nowrap;
  transition:color .16s ease-out,border-color .16s ease-out,background .16s ease-out,transform .16s ease-out;
}
.pill:hover{color:var(--brand);border-color:rgba(21,214,192,.5);transform:translateY(-2px);}
.pill.active{
  color:#04121A;
  background:var(--brand);
  border-color:var(--brand);
  font-weight:700;
}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section:last-of-type{padding-bottom:72px;}
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-label{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.6px;
  color:var(--brand);
  background:rgba(21,214,192,.10);
  border:1px solid rgba(21,214,192,.32);
  margin-bottom:16px;
}
.sec-title{font-size:clamp(22px,3vw,34px);line-height:1.3;}
.sec-sub{margin-top:14px;color:var(--text-2);font-size:16px;max-width:680px;}
@media (max-width:991px){.section{padding:72px 0;}}
@media (max-width:575px){.section{padding:56px 0;}}

/* ============ 非对称要点 ============ */
.grid-7-5{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:24px;
  align-items:start;
}
.feature-main{
  border-radius:var(--r-lg);
  padding:32px;
  background:var(--surface-strong);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.feature-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift),inset 0 1px 0 rgba(255,255,255,.08);}
.feature-icon{
  width:52px;height:52px;
  border-radius:14px;
  display:grid;place-items:center;
  font-size:22px;
  color:var(--brand);
  background:rgba(21,214,192,.12);
  border:1px solid rgba(21,214,192,.3);
  margin-bottom:20px;
}
.feature-main h3{font-size:22px;line-height:1.4;margin-bottom:12px;}
.feature-main p{color:var(--text-2);font-size:15.5px;}
.progress-thin{
  height:4px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  overflow:hidden;
  margin-top:26px;
}
.progress-thin span{
  display:block;
  height:100%;
  width:76%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.mini-list{
  border-radius:var(--r-lg);
  padding:8px 24px;
  background:var(--surface);
  border:1px solid var(--line);
}
.mini-item{display:flex;gap:16px;align-items:flex-start;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.08);}
.mini-item:last-child{border-bottom:0;}
.mini-icon{
  width:40px;height:40px;
  flex:0 0 40px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:16px;
  color:var(--accent);
  background:rgba(255,176,32,.12);
  border:1px solid rgba(255,176,32,.3);
}
.mini-item h4{font-size:16px;font-weight:600;margin-bottom:4px;}
.mini-item p{font-size:14px;color:var(--text-3);line-height:1.75;}
@media (max-width:991px){
  .grid-7-5{grid-template-columns:1fr;}
}

/* ============ 时间线 ============ */
.timeline{position:relative;max-width:980px;}
.step{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:24px;
  position:relative;
  padding-bottom:32px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:31px;
  top:66px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,rgba(21,214,192,.55),rgba(21,214,192,.05));
}
.step:last-child::before{display:none;}
.step-num{
  width:64px;height:64px;
  border-radius:50%;
  display:grid;place-items:center;
  font-family:"DIN Alternate","SFMono-Regular",Consolas,monospace;
  font-size:20px;
  font-weight:700;
  color:var(--accent);
  background:var(--surface-strong);
  border:1px solid rgba(255,176,32,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  z-index:1;
}
.step-body{
  border-radius:var(--r-md);
  padding:24px;
  background:var(--surface-strong);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift),inset 0 1px 0 rgba(255,255,255,.08);border-color:rgba(21,214,192,.35);}
.step-body h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.step-body p{color:var(--text-2);font-size:15.5px;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.step-tags span{
  font-size:12px;
  color:var(--text-2);
  padding:4px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
}
@media (max-width:575px){
  .step{grid-template-columns:48px 1fr;gap:14px;}
  .step-num{width:48px;height:48px;font-size:16px;}
  .step::before{left:23px;top:50px;}
  .step-body{padding:20px;}
}

/* ============ 图文混排 ============ */
.media-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:center;
}
.media-row + .media-row{margin-top:56px;}
.media-row.reverse .media-copy{order:2;}
.media-row.reverse .media-figure{order:1;}
.media-copy h3{font-size:clamp(20px,2.4vw,26px);line-height:1.4;margin:12px 0 14px;}
.media-copy p{color:var(--text-2);font-size:15.5px;}
.media-list{margin-top:18px;display:grid;gap:12px;}
.media-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.media-list i{color:var(--brand);margin-top:6px;font-size:13px;}
.media-figure{
  position:relative;
  aspect-ratio:16/10;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.media-figure:hover img{transform:scale(1.04);}
.media-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,.05) 40%,rgba(5,7,14,.72) 100%);
  pointer-events:none;
}
.media-cap{
  position:absolute;
  left:18px;bottom:16px;
  z-index:2;
  font-size:13px;
  color:var(--text-1);
  padding:6px 12px;
  border-radius:999px;
  background:rgba(5,7,14,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(8px);
}
@media (max-width:991px){
  .media-row{grid-template-columns:1fr;gap:24px;}
  .media-row.reverse .media-copy{order:1;}
  .media-row.reverse .media-figure{order:2;}
  .media-row + .media-row{margin-top:44px;}
}

/* ============ 表单 ============ */
.form-wrap{
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:32px;
  align-items:start;
}
.form-copy h2{font-size:clamp(22px,3vw,32px);line-height:1.3;margin-bottom:14px;}
.form-copy p{color:var(--text-2);font-size:16px;}
.form-points{margin-top:24px;display:grid;gap:12px;}
.form-points li{display:flex;gap:10px;align-items:flex-start;color:var(--text-2);font-size:15px;}
.form-points i{color:var(--brand);margin-top:6px;font-size:13px;}
.form-panel{
  border-radius:var(--r-lg);
  padding:28px;
  background:var(--surface-strong);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out,background .16s ease-out;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:rgba(21,214,192,.06);
  box-shadow:0 0 0 3px rgba(21,214,192,.16);
}
.field textarea{min-height:104px;resize:vertical;}
.form-hint{font-size:13px;color:var(--text-3);margin-top:8px;}
.btn-primary-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  padding:13px 22px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  background:var(--brand);
  color:#04121A;
  font-weight:700;
  font-size:15px;
  box-shadow:var(--glow);
  cursor:pointer;
  transition:transform .16s ease-out,background .16s ease-out,box-shadow .16s ease-out;
}
.btn-primary-cta:hover{background:var(--brand-hover);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(21,214,192,.45),0 14px 34px rgba(21,214,192,.32);}
.btn-primary-cta:active{transform:translateY(0);}
.btn-primary-cta:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--r-sm);
  border:1px solid rgba(21,214,192,.55);
  color:var(--brand);
  font-weight:600;
  font-size:14.5px;
  background:transparent;
  transition:background .16s ease-out,transform .16s ease-out,border-color .16s ease-out;
}
.btn-ghost:hover{background:rgba(21,214,192,.08);border-color:var(--brand);transform:translateY(-2px);}
@media (max-width:991px){
  .form-wrap{grid-template-columns:1fr;}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px;margin:0 auto;}
.accordion-item{
  background:var(--surface-strong);
  border:1px solid var(--line) !important;
  border-radius:var(--r-md) !important;
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.accordion-button{
  background:transparent !important;
  color:var(--text-1) !important;
  font-size:16px;
  font-weight:600;
  padding:20px 22px;
  box-shadow:none !important;
  border-left:3px solid transparent;
  transition:color .16s ease-out,background .16s ease-out,border-color .16s ease-out;
}
.accordion-button:hover{background:rgba(21,214,192,.05) !important;}
.accordion-button:not(.collapsed){
  color:var(--brand) !important;
  background:rgba(21,214,192,.07) !important;
  border-left:3px solid var(--brand);
}
.accordion-button::after{
  content:"+";
  background-image:none !important;
  width:auto;height:auto;
  font-size:22px;
  line-height:1;
  color:var(--brand);
  display:grid;
  place-items:center;
  transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{
  padding:4px 22px 22px 25px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  border-top:1px solid rgba(255,255,255,.06);
}

/* ============ CTA 条 ============ */
.cta-band{
  border-radius:var(--r-lg);
  padding:36px;
  background:linear-gradient(120deg,rgba(21,214,192,.14) 0%,rgba(122,92,255,.10) 100%);
  border:1px solid rgba(21,214,192,.28);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);line-height:1.35;margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.link-row{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  align-items:center;
  color:var(--text-3);
  font-size:14px;
}
.link-row a{display:inline-flex;align-items:center;gap:6px;}
.link-row a::before{content:"›";color:var(--text-3);}
@media (max-width:575px){
  .cta-band{padding:24px;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
  color:var(--text-1);
}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px;}
.footer-about{color:var(--text-3);font-size:14px;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:var(--text-2);font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.footer-bottom p{margin:0;color:var(--text-3);font-size:13px;}
.footer-bottom .legal{color:var(--text-3);}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:22px;
  bottom:26px;
  width:46px;height:46px;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:rgba(12,22,38,.82);
  color:var(--brand);
  border:1px solid rgba(21,214,192,.45);
  box-shadow:0 0 0 1px rgba(21,214,192,.18),0 10px 26px rgba(0,0,0,.45);
  backdrop-filter:blur(10px);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out;
  z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:rgba(21,214,192,.16);}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1220;
  --bg-2:#0E1728;
  --surface:rgba(255,255,255,.05);
  --surface-strong:rgba(12,22,38,.72);
  --line:rgba(255,255,255,.10);
  --brand:#15D6C0;
  --brand-hover:#0FB9A6;
  --brand-deep:#0B8F82;
  --accent:#FFB020;
  --violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A8B6CC;
  --text-3:#6E7F99;
  --ok:#2ED47A;
  --warn:#FF7A45;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 18px 38px rgba(0,0,0,.46);
  --section-gap:96px;
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","SF Mono",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out,background-color .16s ease-out,border-color .16s ease-out;}
a:hover{color:var(--brand-hover);}
img{max-width:100%;display:block;border:0;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:var(--section-gap) 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:2px;font-weight:600;
  color:var(--brand);margin-bottom:14px;
}
.section-head{max-width:780px;margin-bottom:36px;}
.section-title{font-size:clamp(22px,3vw,34px);line-height:1.3;font-weight:700;margin-bottom:14px;}
.section-desc{color:var(--text-2);font-size:15.5px;line-height:1.85;margin:0;}
.divider-line{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,7,14,.86);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:16px 0;
  transition:padding .18s ease-out;
}
.site-header.is-scrolled .brand-row{padding:8px 0;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-1);}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;
  font-size:20px;font-weight:700;color:#04241F;
  background:linear-gradient(135deg,#15D6C0 0%,#7A5CFF 120%);
  box-shadow:0 8px 22px rgba(21,214,192,.28),inset 0 1px 0 rgba(255,255,255,.35);
  transition:width .18s ease-out,height .18s ease-out,flex-basis .18s ease-out;
}
.site-header.is-scrolled .brand-mark{width:36px;height:36px;flex-basis:36px;font-size:17px;}
.brand-name{display:block;font-size:17px;font-weight:700;letter-spacing:.5px;line-height:1.3;}
.brand-sub{display:block;font-size:12px;color:var(--text-3);letter-spacing:.6px;line-height:1.5;}
.brand-tools{display:flex;align-items:center;gap:14px;}
.tool-icon{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;color:var(--text-2);
  border:1px solid var(--line);background:var(--surface);
}
.tool-icon:hover{color:var(--brand);border-color:rgba(21,214,192,.45);}
.tool-link{font-size:14px;color:var(--text-2);}
.tool-link:hover{color:var(--brand);}
.channel-row{
  background:linear-gradient(180deg,rgba(10,18,32,.95),rgba(10,18,32,.72));
  border-top:1px solid var(--line);
}
.channel-track{
  display:flex;align-items:center;gap:8px;
  padding:10px 0;overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}
.channel-track::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;scroll-snap-align:start;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  border:1px solid transparent;
}
.channel-link:hover{color:var(--text-1);background:rgba(255,255,255,.06);}
.channel-link.active{
  color:#04241F;font-weight:600;
  background:var(--brand);
  box-shadow:0 8px 22px rgba(21,214,192,.26);
}

/* ============ 按钮 ============ */
.btn-brand,.btn-ghost,.btn-quiet{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;
  padding:12px 24px;border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease-out,background-color .16s ease-out,box-shadow .16s ease-out,color .16s ease-out;
}
.btn-brand{
  background:var(--brand);color:#04241F;
  box-shadow:0 0 0 1px rgba(21,214,192,.5),0 10px 30px rgba(21,214,192,.28);
}
.btn-brand:hover{
  background:var(--brand-hover);color:#04241F;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(21,214,192,.55),0 16px 38px rgba(21,214,192,.4);
}
.btn-brand:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(21,214,192,.5),0 6px 16px rgba(21,214,192,.25);}
.btn-ghost{
  background:transparent;color:var(--brand);
  border-color:rgba(21,214,192,.55);
}
.btn-ghost:hover{background:rgba(21,214,192,.08);color:var(--brand-hover);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-brand.btn-sm{padding:9px 18px;font-size:14px;border-radius:var(--r-sm);}
.btn-brand[disabled],.btn-ghost[disabled]{opacity:.45;box-shadow:none;pointer-events:none;}

/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;min-height:300px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 68%;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,7,14,.96) 0%,rgba(5,7,14,.80) 46%,rgba(5,7,14,.42) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
.cat-hero .container{position:relative;z-index:2;padding-top:52px;padding-bottom:52px;}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--text-3);}
.crumbs .current{color:var(--text-1);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;color:var(--accent);
  border:1px solid rgba(255,176,32,.45);
  background:rgba(255,176,32,.08);
  margin-bottom:18px;
}
.cat-hero h1{
  font-size:clamp(28px,4.4vw,46px);line-height:1.18;font-weight:700;
  max-width:760px;margin-bottom:16px;
}
.hero-lead{
  max-width:640px;font-size:16px;line-height:1.85;color:var(--text-2);margin:0;
}

/* ============ 分类胶囊条 ============ */
.cat-tabs{
  position:relative;z-index:3;
  background:rgba(10,18,32,.7);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.tab-track{
  display:flex;align-items:center;gap:10px;
  padding:14px 0;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tab-track::-webkit-scrollbar{display:none;}
.tab-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  border:1px solid var(--line);background:var(--surface);
}
.tab-pill:hover{color:var(--text-1);border-color:rgba(21,214,192,.45);}
.tab-pill.active{
  color:#04241F;font-weight:600;background:var(--brand);border-color:var(--brand);
  box-shadow:0 8px 20px rgba(21,214,192,.24);
}

/* ============ 对照卡板块 ============ */
.compare-list{display:grid;gap:20px;}
.compare-row{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  align-items:stretch;
}
.compare-cell{
  border-radius:var(--r-md);border:1px solid var(--line);
  padding:22px 24px;font-size:15.5px;line-height:1.85;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.compare-cell p{margin:0;color:var(--text-2);}
.compare-cell strong{color:var(--text-1);font-weight:600;}
.compare-cell.problem{background:rgba(255,122,69,.055);}
.compare-cell.solution{
  background:rgba(21,214,192,.06);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.compare-cell:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(255,255,255,.18);}
.cell-tag{
  display:inline-flex;align-items:center;gap:6px;
  height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;margin-bottom:12px;
}
.cell-tag.problem{color:var(--warn);border:1px solid rgba(255,122,69,.4);background:rgba(255,122,69,.08);}
.cell-tag.solution{color:var(--brand);border:1px solid rgba(21,214,192,.4);background:rgba(21,214,192,.08);}

/* ============ 流程步骤 ============ */
.flow-list{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
  counter-reset:flow;
}
.flow-item{
  position:relative;
  border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--surface);
  padding:26px 22px 24px;
  transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out;
}
.flow-item::before{
  content:"";position:absolute;left:22px;right:22px;top:0;height:1px;
  background:linear-gradient(90deg,rgba(21,214,192,.7),rgba(21,214,192,0));
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(21,214,192,.35);}
.flow-num{
  display:inline-grid;place-items:center;
  width:44px;height:44px;border-radius:50%;
  font-family:var(--font-num);font-size:16px;font-weight:700;
  color:var(--accent);border:1px solid rgba(255,176,32,.45);
  background:rgba(255,176,32,.08);
  margin-bottom:16px;
}
.flow-item h3{font-size:18px;line-height:1.4;font-weight:600;margin-bottom:10px;}
.flow-item p{font-size:14.5px;line-height:1.85;color:var(--text-2);margin:0;}

/* ============ 指标条 ============ */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;margin-bottom:56px;
}
.metric{
  background:var(--bg-1);
  padding:26px 24px;
  text-align:left;
}
.metric-num{
  font-family:var(--font-num);font-size:clamp(28px,3.6vw,40px);
  font-weight:700;color:var(--brand);line-height:1.1;
}
.metric-unit{font-size:15px;color:var(--text-2);margin-left:6px;}
.metric-label{display:block;font-size:13.5px;color:var(--text-3);margin-top:8px;letter-spacing:.5px;}

/* ============ 图文混排 ============ */
.media-row{
  display:grid;grid-template-columns:1.02fr 1fr;gap:40px;align-items:center;
  margin-bottom:56px;
}
.media-row:last-child{margin-bottom:0;}
.media-row.reverse .media-figure{order:2;}
.media-figure{
  position:relative;aspect-ratio:16/10;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.media-figure:hover img{transform:scale(1.04);}
.media-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,0) 45%,rgba(5,7,14,.55) 100%);
}
.media-body h3{font-size:clamp(19px,2.2vw,24px);line-height:1.4;font-weight:600;margin-bottom:14px;}
.media-body p{font-size:15.5px;line-height:1.9;color:var(--text-2);}
.check-list{margin-top:18px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;line-height:1.8;color:var(--text-2);
}
.check-list li i{color:var(--brand);margin-top:6px;font-size:13px;}
.check-list li strong{color:var(--text-1);font-weight:600;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-card{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--surface);margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.faq-card:hover{border-color:rgba(255,255,255,.2);box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text-1);
  transition:background-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-q:hover{background:rgba(255,255,255,.035);}
.faq-q[aria-expanded="true"]{
  background:rgba(21,214,192,.06);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-q i{
  color:var(--brand);font-size:14px;flex:0 0 auto;
  transition:transform .22s ease-out;
}
.faq-q[aria-expanded="true"] i{transform:rotate(45deg);}
.faq-a{
  padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--text-2);
}
.faq-a p:last-child{margin-bottom:0;}
.faq-a strong{color:var(--text-1);}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,rgba(21,214,192,.10) 0%,rgba(122,92,255,.10) 60%,rgba(255,176,32,.06) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px 0;
}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);line-height:1.35;font-weight:700;margin-bottom:10px;}
.cta-inner p{margin:0;color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 相关分类文字链 ============ */
.related-links{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 26px;
  padding:26px 0 0;
  border-top:1px solid var(--line);
  margin-top:36px;
}
.related-links span.label{font-size:14px;color:var(--text-3);}
.related-links a{
  font-size:14.5px;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.related-links a:hover{color:var(--brand-hover);}
.related-links a i{font-size:11px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;
}
.footer-brand{
  display:flex;align-items:center;gap:12px;
  font-size:17px;font-weight:700;color:var(--text-1);margin-bottom:18px;
}
.footer-brand .brand-mark{width:38px;height:38px;flex-basis:38px;border-radius:12px;font-size:18px;}
.footer-about{font-size:14px;line-height:1.85;color:var(--text-3);max-width:340px;margin:0;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:56px;padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3);}
.footer-bottom .legal{font-size:12.5px;color:var(--text-3);}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  color:var(--brand);font-size:15px;
  background:rgba(12,22,38,.75);
  border:1px solid rgba(21,214,192,.45);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 0 0 1px rgba(21,214,192,.28),0 10px 26px rgba(0,0,0,.4);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:rgba(21,214,192,.16);color:var(--text-1);}

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

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-grid > div:last-child{grid-column:span 3;}
  .footer-col:last-child ul{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  :root{--section-gap:72px;}
  .brand-sub{display:none;}
  .flow-list{grid-template-columns:repeat(2,1fr);}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .media-row{grid-template-columns:1fr;gap:26px;}
  .media-row.reverse .media-figure{order:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;}
}
@media (max-width:767.98px){
  :root{--section-gap:56px;}
  .container{padding-left:16px;padding-right:16px;}
  .tool-link{display:none;}
  .cat-hero .container{padding-top:40px;padding-bottom:40px;}
  .cat-hero{min-height:260px;}
  .compare-row{grid-template-columns:1fr;gap:12px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-grid > div:first-child{grid-column:span 2;}
  .footer-grid > div:last-child{grid-column:span 2;}
  .footer-col:last-child ul{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .btn-brand,.btn-ghost{width:100%;}
  .cta-actions{width:100%;}
  .to-top{right:16px;bottom:18px;width:44px;height:44px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .flow-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-grid > div:first-child,
  .footer-grid > div:last-child{grid-column:span 1;}
  .metric .metric-num{font-size:30px;}
  .brand-name{font-size:15.5px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1220;
  --bg-2:#0E1728;
  --surface:rgba(255,255,255,.05);
  --surface-strong:rgba(12,22,38,.72);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --brand:#15D6C0;
  --brand-hover:#0FB9A6;
  --brand-deep:#0B8F82;
  --accent:#FFB020;
  --violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A8B6CC;
  --text-3:#6E7F99;
  --ok:#2ED47A;
  --warn:#FF7A45;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(21,214,192,.5),0 10px 30px rgba(21,214,192,.28);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.2px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(21,214,192,.14),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(122,92,255,.12),transparent 60%),
    radial-gradient(700px 520px at 50% 108%,rgba(255,176,32,.07),transparent 62%);
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--brand-hover)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text-1);letter-spacing:.4px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,textarea{font:inherit;color:inherit}
::selection{background:rgba(21,214,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
  position:relative;
  z-index:2;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(5,7,14,.86);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:16px 0;
  transition:padding .18s ease;
}
.site-header.is-scrolled .brand-row{padding:9px 0}
.site-header.is-scrolled{background:rgba(5,7,14,.95);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-1)}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:13px;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep) 62%,var(--violet));
  color:#04211E;
  font-size:20px;font-weight:700;
  box-shadow:var(--glow);
  transition:transform .16s ease;
}
.brand:hover .brand-mark{transform:translateY(-2px)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.6px}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.4px}
.brand-tools{display:flex;align-items:center;gap:14px}
.tool-icon{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-2);
  transition:all .16s ease;
}
.tool-icon:hover{color:var(--brand);border-color:rgba(21,214,192,.5);transform:translateY(-2px)}
.tool-link{font-size:14px;color:var(--text-2);padding:6px 2px}
.tool-link:hover{color:var(--brand)}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);
  color:#04211E;
  font-weight:700;
  font-size:14px;
  padding:11px 22px;
  border:none;
  border-radius:var(--r-pill);
  box-shadow:var(--glow);
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease;
  cursor:pointer;
}
.btn-brand:hover{background:var(--brand-hover);color:#04211E;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(21,214,192,.6),0 14px 34px rgba(21,214,192,.4)}
.btn-brand:active{transform:translateY(0)}
.btn-brand.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-outline-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;
  color:var(--brand);
  font-weight:600;
  font-size:14px;
  padding:11px 22px;
  border:1px solid rgba(21,214,192,.55);
  border-radius:var(--r-pill);
  transition:all .16s ease;
  cursor:pointer;
}
.btn-outline-brand:hover{background:rgba(21,214,192,.1);color:var(--brand);transform:translateY(-2px)}
.channel-row{
  background:rgba(10,18,32,.82);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.channel-track{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:6px 0;
}
.channel-track::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;
  flex:0 0 auto;
  scroll-snap-align:start;
  padding:10px 16px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:all .16s ease;
}
.channel-link:hover{color:var(--text-1);background:rgba(255,255,255,.06)}
.channel-link.active{
  color:#04211E;
  background:var(--brand);
  font-weight:700;
  box-shadow:0 6px 18px rgba(21,214,192,.28);
}
.channel-link.active:hover{background:var(--brand-hover);color:#04211E}

/* ---------- Page hero (inner) ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  padding:56px 0 44px;
  min-height:280px;
  display:flex;
  align-items:center;
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:right center;
  transform:scale(1.02);
}
.page-hero .hero-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(5,7,14,.96) 0%,rgba(5,7,14,.86) 42%,rgba(5,7,14,.6) 76%,rgba(5,7,14,.42) 100%);
}
.page-hero .container{width:100%}
.breadcrumb-line{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumb-line a{color:var(--text-2)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:var(--text-3);opacity:.7}
.breadcrumb-line .current{color:var(--text-1)}
.page-hero h1{
  font-size:clamp(26px,4vw,44px);
  line-height:1.2;
  max-width:900px;
  margin-bottom:16px;
}
.page-hero .hero-lead{
  font-size:16px;
  color:var(--text-2);
  max-width:700px;
  line-height:1.85;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;
  padding:0 14px;
  font-size:12.5px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,176,32,.45);
  color:var(--accent);
  background:rgba(255,176,32,.08);
}
.badge-brand{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;
  padding:0 14px;
  font-size:12.5px;
  border-radius:var(--r-pill);
  border:1px solid rgba(21,214,192,.45);
  color:var(--brand);
  background:rgba(21,214,192,.08);
}

/* ---------- Category pills ---------- */
.cat-bar{padding:26px 0 0}
.cat-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:14px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 20px;
  font-size:14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--text-2);
  white-space:nowrap;
  transition:all .16s ease;
}
.pill:hover{color:var(--text-1);border-color:rgba(21,214,192,.55);transform:translateY(-2px)}
.pill.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#04211E;
  font-weight:700;
  box-shadow:0 8px 22px rgba(21,214,192,.3);
}
.pill.active:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#04211E}

/* ---------- Sections ---------- */
.section{padding:88px 0 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;
  letter-spacing:1.4px;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head .eyebrow::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:var(--brand);
  display:inline-block;
}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.3;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:15.5px;line-height:1.85}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow{justify-content:center}

/* ---------- Topic grid 3x3 ---------- */
.topic-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.topic-item{
  position:relative;
  padding:26px 24px 22px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
  overflow:hidden;
}
.topic-item::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  pointer-events:none;
  opacity:0;
  box-shadow:0 0 0 1px rgba(21,214,192,.6),0 0 34px rgba(21,214,192,.22) inset;
  transition:opacity .18s ease;
}
.topic-item:hover{transform:translateY(-3px);border-color:rgba(21,214,192,.4);box-shadow:var(--shadow-hover)}
.topic-item:hover::after{opacity:1}
.topic-icon{
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  border-radius:14px;
  background:rgba(21,214,192,.12);
  border:1px solid rgba(21,214,192,.32);
  color:var(--brand);
  font-size:19px;
  margin-bottom:18px;
  transition:background .18s ease,color .18s ease;
}
.topic-item:hover .topic-icon{background:var(--brand);color:#04211E}
.topic-item h3{font-size:17px;margin-bottom:10px;line-height:1.45}
.topic-item p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.topic-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.topic-tag{
  font-size:12px;
  color:var(--accent);
  border:1px solid rgba(255,176,32,.4);
  background:rgba(255,176,32,.08);
  border-radius:var(--r-pill);
  padding:3px 11px;
  white-space:nowrap;
}
.topic-arrow{font-size:12.5px;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.topic-item:hover .topic-arrow{gap:10px}

/* ---------- Flow steps ---------- */
.flow-wrap{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,23,40,.86),rgba(10,18,32,.72));
  padding:38px 32px;
}
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:26px;
  position:relative;
}
.flow-grid::before{
  content:"";
  position:absolute;
  left:6%;
  right:6%;
  top:26px;
  height:1px;
  background:linear-gradient(90deg,rgba(21,214,192,.05),rgba(21,214,192,.5),rgba(255,176,32,.4),rgba(21,214,192,.05));
}
.flow-step{position:relative;padding-top:0}
.flow-num{
  width:52px;height:52px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--bg-2);
  border:1px solid rgba(21,214,192,.45);
  color:var(--brand);
  font-weight:700;
  font-size:16px;
  font-variant-numeric:tabular-nums;
  margin-bottom:20px;
  box-shadow:0 0 0 6px rgba(5,7,14,.9);
  position:relative;
  z-index:2;
}
.flow-step h3{font-size:16.5px;margin-bottom:10px}
.flow-step p{font-size:14px;color:var(--text-2);line-height:1.8}
.flow-step .flow-hint{
  display:inline-block;
  margin-top:12px;
  font-size:12.5px;
  color:var(--text-3);
  border-left:2px solid rgba(255,176,32,.6);
  padding-left:10px;
  line-height:1.7;
}

/* ---------- Split block ---------- */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:38px;
  align-items:center;
}
.split.reverse{grid-template-columns:7fr 5fr}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  aspect-ratio:4/3;
  position:relative;
  box-shadow:var(--shadow);
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.split-media:hover img{transform:scale(1.04)}
.split-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,.05),rgba(5,7,14,.55));
  pointer-events:none;
}
.split-media .media-cap{
  position:absolute;
  left:18px;bottom:16px;
  z-index:3;
  font-size:12.5px;
  color:var(--text-2);
  background:rgba(5,7,14,.6);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 14px;
  backdrop-filter:blur(8px);
}
.split-body h2{font-size:clamp(21px,2.6vw,30px);line-height:1.32;margin-bottom:16px}
.split-body > p{color:var(--text-2);font-size:15.5px;line-height:1.9;margin-bottom:22px}
.check-list{display:grid;gap:14px}
.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 18px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  transition:transform .16s ease,border-color .16s ease;
}
.check-list li:hover{transform:translateY(-2px);border-color:rgba(21,214,192,.36)}
.check-list i{color:var(--brand);font-size:16px;margin-top:5px}
.check-list .ck-t{font-size:15px;font-weight:600;margin-bottom:4px}
.check-list .ck-d{font-size:13.5px;color:var(--text-2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-acc .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.faq-acc .accordion-item:last-child{margin-bottom:0}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:16px;
  font-weight:600;
  padding:20px 24px;
  box-shadow:none;
  border:0;
  gap:14px;
  transition:color .16s ease,box-shadow .2s ease,background .16s ease;
}
.faq-acc .accordion-button:hover{color:var(--brand)}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand);
  background:rgba(21,214,192,.06);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand);outline:none}
.faq-acc .accordion-button::after{
  content:"+";
  background-image:none;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
  line-height:1;
  color:var(--brand);
  border:1px solid rgba(21,214,192,.4);
  border-radius:50%;
  flex:0 0 26px;
  transition:transform .22s ease,background .18s ease,color .18s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background:var(--brand);
  color:#04211E;
}
.faq-acc .accordion-body{
  padding:0 24px 22px 24px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.faq-acc .accordion-body strong{color:var(--text-1)}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(21,214,192,.14),rgba(122,92,255,.1) 52%,rgba(255,176,32,.08));
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1),var(--shadow);
  padding:40px 38px;
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:28px;
  align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35;margin-bottom:12px}
.cta-band p{color:var(--text-2);font-size:15px;line-height:1.85}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn-brand,.cta-actions .btn-outline-brand{justify-content:center}
.back-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--text-3);
}
.back-links a{color:var(--text-2);display:inline-flex;align-items:center;gap:7px}
.back-links a:hover{color:var(--brand)}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  position:relative;
  z-index:2;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding:60px 0 40px;
}
.footer-brand{
  display:flex;align-items:center;gap:11px;
  font-size:17px;font-weight:700;color:var(--text-1);
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;border-radius:11px}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.9;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 32px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.footer-bottom .legal{font-size:12.5px;color:#57657d;max-width:640px}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(21,214,192,.55);
  background:rgba(12,22,38,.72);
  backdrop-filter:blur(12px);
  color:var(--brand);
  font-size:16px;
  z-index:1200;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background .16s ease;
  cursor:pointer;
  box-shadow:0 0 0 1px rgba(21,214,192,.25),0 10px 26px rgba(0,0,0,.45);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:#04211E}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .flow-grid::before{display:none}
}
@media (max-width:991px){
  .brand-sub{display:none}
  .tool-link{display:none}
  .section{padding:68px 0 0}
  .split,.split.reverse{grid-template-columns:1fr;gap:26px}
  .split.reverse .split-media{order:-1}
  .cta-band{grid-template-columns:1fr;padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
  .page-hero{padding:44px 0 36px;min-height:250px}
  .flow-wrap{padding:30px 24px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding-left:16px;padding-right:16px}
  .brand-name{font-size:16px}
  .btn-brand.btn-sm{padding:8px 14px;font-size:12.5px}
  .section{padding:56px 0 0}
  .topic-grid{grid-template-columns:1fr}
  .topic-item{padding:22px 20px}
  .flow-grid{grid-template-columns:1fr;gap:24px}
  .cat-pills{padding:12px;gap:8px}
  .pill{padding:8px 15px;font-size:13px}
  .page-hero h1{margin-bottom:12px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .site-footer{margin-top:72px}
  .to-top{right:14px;bottom:18px;width:44px;height:44px}
}
@media (max-width:520px){
  .brand-tools{gap:8px}
  .tool-icon{width:36px;height:36px}
  .hero-meta{gap:8px}
  .badge-soft,.badge-brand{font-size:11.5px;padding:0 11px}
  .cta-band{padding:26px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1220;
  --bg-2:#0E1728;
  --surface:rgba(255,255,255,0.05);
  --surface-strong:rgba(12,22,38,0.72);
  --line:rgba(255,255,255,0.10);
  --line-soft:rgba(255,255,255,0.06);
  --brand:#15D6C0;
  --brand-hover:#0FB9A6;
  --brand-deep:#0B8F82;
  --accent:#FFB020;
  --violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A8B6CC;
  --text-3:#6E7F99;
  --ok:#2ED47A;
  --warn:#FF7A45;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,0.35);
  --glow:0 0 0 1px rgba(21,214,192,0.5), 0 10px 30px rgba(21,214,192,0.28);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"DIN Alternate","Bahnschrift","SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(21,214,192,0.13), transparent 62%),
    radial-gradient(760px 480px at 94% 4%, rgba(122,92,255,0.12), transparent 64%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out, opacity .16s ease-out;}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4,h5{color:var(--text-1);font-weight:700;margin:0;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;position:relative;z-index:1;}
.section{padding:96px 0;position:relative;z-index:1;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand);font-weight:600;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px;display:inline-block;}
.section-title{font-size:clamp(22px,3vw,34px);line-height:1.3;}
.section-desc{margin-top:14px;color:var(--text-2);max-width:760px;font-size:16px;}
.btn-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);
  font-weight:600;
  font-size:15px;
  padding:12px 24px;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .16s ease-out;
  text-align:center;
}
.btn-brand{
  background:var(--brand);
  color:#04231F;
  box-shadow:var(--glow);
}
.btn-brand:hover{
  background:var(--brand-hover);
  color:#04231F;
  box-shadow:0 0 0 1px rgba(21,214,192,0.45),0 14px 34px rgba(21,214,192,0.38);
  transform:translateY(-2px);
}
.btn-brand:active{transform:translateY(0);}
.btn-brand[disabled],.btn-brand.disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-ghost{
  background:transparent;
  border-color:rgba(21,214,192,0.55);
  color:var(--brand);
}
.btn-ghost:hover{background:rgba(21,214,192,0.08);color:var(--brand-hover);border-color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,7,14,0.92);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line-soft);
}
.brand-row{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px 0;
  transition:padding .18s ease-out;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand:hover{color:inherit;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-deep) 62%,var(--violet) 130%);
  color:#04231F;font-weight:700;font-size:20px;
  box-shadow:0 6px 18px rgba(21,214,192,0.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{color:var(--text-1);font-weight:700;font-size:18px;letter-spacing:.01em;}
.brand-sub{color:var(--text-3);font-size:12px;}
.brand-tools{display:flex;align-items:center;gap:16px;}
.tool-icon{
  width:38px;height:38px;display:grid;place-items:center;
  border-radius:10px;border:1px solid var(--line);
  color:var(--text-2);background:var(--surface);
}
.tool-icon:hover{color:var(--brand);border-color:rgba(21,214,192,0.45);}
.tool-link{font-size:14px;color:var(--text-2);}
.tool-link:hover{color:var(--brand);}
.channel-row{
  background:rgba(10,18,32,0.88);
  border-top:1px solid var(--line-soft);
}
.channel-track{
  display:flex;align-items:center;gap:8px;
  padding:8px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-track::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;
  padding:9px 16px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--text-2);
  border:1px solid transparent;
  white-space:nowrap;
  scroll-snap-align:start;
  transition:all .16s ease-out;
}
.channel-link:hover{color:var(--text-1);background:rgba(255,255,255,0.05);}
.channel-link.active{
  color:#04231F;background:var(--brand);font-weight:600;
  box-shadow:0 6px 18px rgba(21,214,192,0.26);
}
.channel-link.active:hover{color:#04231F;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(5,7,14,0.94) 6%,rgba(5,7,14,0.72) 52%,rgba(5,7,14,0.46) 100%),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line-soft);
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:120px;
  background:linear-gradient(180deg,transparent,rgba(5,7,14,0.96));
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.breadcrumb-nav{
  font-size:14px;color:var(--text-3);margin-bottom:16px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.breadcrumb-nav a{color:var(--text-2);}
.breadcrumb-nav a:hover{color:var(--brand);}
.breadcrumb-nav .sep{color:var(--text-3);}
.breadcrumb-nav .current{color:var(--text-1);}
.page-hero h1{
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.18;
  max-width:860px;
  letter-spacing:-0.01em;
}
.page-hero h1 .hl{color:var(--brand);}
.page-hero .hero-lead{
  margin-top:18px;max-width:700px;font-size:16px;color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-2);font-size:13px;
}
.tag-pill i{color:var(--brand);font-size:12px;}
.tag-pill.accent{border-color:rgba(255,176,32,0.45);color:var(--accent);}
.tag-pill.accent i{color:var(--accent);}

/* ---------- category pills ---------- */
.cat-strip{padding:28px 0 0;position:relative;z-index:2;}
.cat-pills{display:flex;flex-wrap:wrap;gap:12px;}
.cat-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-2);font-size:14px;
  background:var(--surface);
  transition:all .16s ease-out;
}
.cat-pill:hover{border-color:rgba(21,214,192,0.5);color:var(--text-1);transform:translateY(-1px);}
.cat-pill.active{background:var(--brand);color:#04231F;border-color:var(--brand);font-weight:600;box-shadow:0 8px 22px rgba(21,214,192,0.26);}

/* ---------- stat strip ---------- */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.stat-item{
  padding:24px 22px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .16s ease-out,border-color .16s ease-out;
}
.stat-item:hover{transform:translateY(-2px);border-color:rgba(21,214,192,0.4);}
.stat-num{
  font-family:var(--font-mono);
  font-size:clamp(30px,4vw,42px);
  font-weight:700;color:var(--accent);line-height:1;
}
.stat-unit{font-size:15px;color:var(--text-2);margin-left:6px;font-weight:600;}
.stat-label{margin:12px 0 0;font-size:14px;color:var(--text-2);line-height:1.6;}
.stat-bar{height:3px;border-radius:3px;background:rgba(255,255,255,0.08);margin-top:16px;overflow:hidden;}
.stat-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-deep));border-radius:3px;}

/* ---------- media rows ---------- */
.media-row{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
}
.media-row + .media-row{margin-top:80px;}
.media-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/11;
  background:var(--bg-2);
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.media-figure:hover img{transform:scale(1.04);}
.media-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,0.05),rgba(5,7,14,0.42));
  pointer-events:none;
}
.media-body h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32;margin-bottom:16px;}
.media-body p{font-size:16px;color:var(--text-2);}
.media-row.reverse .media-figure{order:2;}
.media-row.reverse .media-body{order:1;}
.check-list{margin-top:20px;display:grid;gap:14px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--r-sm);
  border:1px solid var(--line-soft);
  background:var(--surface);
  font-size:15px;color:var(--text-2);
  transition:border-color .16s ease-out,background .16s ease-out;
}
.check-list li:hover{border-color:rgba(21,214,192,0.4);background:rgba(21,214,192,0.05);}
.check-list i{color:var(--brand);margin-top:5px;font-size:14px;}
.check-list strong{color:var(--text-1);display:block;font-weight:600;margin-bottom:2px;}

/* ---------- index list ---------- */
.index-list{display:grid;gap:14px;}
.index-item{
  display:grid;
  grid-template-columns:52px 1fr auto;
  gap:20px;align-items:center;
  padding:22px 24px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--surface-strong);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .16s ease-out,border-color .16s ease-out,background .16s ease-out;
}
.index-item:hover{transform:translateY(-2px);border-color:rgba(21,214,192,0.45);background:rgba(21,214,192,0.06);}
.index-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:rgba(21,214,192,0.12);color:var(--brand);font-size:20px;
  border:1px solid rgba(21,214,192,0.28);
}
.index-item h3{font-size:17px;margin-bottom:4px;font-weight:600;}
.index-item p{margin:0;font-size:14px;color:var(--text-3);line-height:1.7;}
.index-arrow{color:var(--text-3);font-size:15px;transition:transform .16s ease-out,color .16s ease-out;}
.index-item:hover .index-arrow{color:var(--brand);transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto;}
.accordion-item{
  background:var(--surface-strong);
  border:1px solid var(--line);
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.accordion-item:hover{border-color:rgba(21,214,192,0.35);}
.accordion-button{
  background:transparent !important;
  color:var(--text-1) !important;
  font-size:16px;font-weight:600;
  padding:20px 24px;
  box-shadow:none !important;
  border-left:3px solid transparent;
  transition:border-color .2s ease-out,color .2s ease-out;
}
.accordion-button:not(.collapsed){
  color:var(--brand) !important;
  border-left-color:var(--brand);
  background:rgba(21,214,192,0.05) !important;
}
.accordion-button::after{
  background-image:none !important;
  content:"+";
  font-size:22px;line-height:1;
  width:auto;height:auto;
  color:var(--brand);
  transform:rotate(0deg);
  transition:transform .22s ease-out;
  display:grid;place-items:center;
  font-weight:400;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{
  padding:4px 24px 24px 24px;
  color:var(--text-2);
  font-size:15px;line-height:1.85;
}
.accordion-body p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px;position:relative;z-index:1;}
.cta-inner{
  display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:center;
  padding:44px 40px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(21,214,192,0.12),rgba(122,92,255,0.10) 60%,rgba(255,255,255,0.03));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.cta-inner::before{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;
  background:radial-gradient(circle,rgba(21,214,192,0.22),transparent 70%);
  pointer-events:none;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);line-height:1.34;margin-bottom:10px;}
.cta-inner p{margin:0;color:var(--text-2);font-size:15px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch;}
.cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
.link-row{
  display:flex;flex-wrap:wrap;gap:22px;
  margin-top:28px;font-size:14px;
}
.link-row a{display:inline-flex;align-items:center;gap:6px;}
.link-row a::after{content:"›";font-size:15px;opacity:.75;}
.link-row a:last-child::after{content:"";}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line-soft);
  padding:72px 0 32px;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:12px;color:var(--text-1);font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;border-radius:10px;}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.85;margin:0;max-width:360px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3);}
.footer-bottom .legal{max-width:640px;}

/* ---------- responsive ---------- */
@media (min-width:1400px){
  .container{max-width:1320px;}
}
@media (max-width:1199.98px){
  .media-row{gap:32px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .cta-band{padding:0 0 72px;}
  .brand-sub{display:none;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .media-row{grid-template-columns:1fr;gap:26px;}
  .media-row.reverse .media-figure,
  .media-row.reverse .media-body{order:0;}
  .media-row + .media-row{margin-top:56px;}
  .cta-inner{grid-template-columns:1fr;padding:34px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-hero .container{padding-top:44px;padding-bottom:44px;}
  .index-item{grid-template-columns:46px 1fr auto;padding:18px;gap:16px;}
  .index-icon{width:46px;height:46px;font-size:18px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .cta-band{padding:0 0 56px;}
  .brand-tools .tool-link{display:none;}
  .brand-tools .tool-icon{display:none;}
  .brand-name{font-size:16px;}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:18px;}
  .stat-grid{grid-template-columns:1fr;gap:14px;}
  .index-item{grid-template-columns:1fr;gap:12px;}
  .index-arrow{display:none;}
  .link-row{gap:14px;flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .page-hero h1{font-size:26px;}
  .accordion-button{padding:16px 18px;font-size:15px;}
  .accordion-body{padding:0 18px 20px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}