/* roulang page: index */
:root{
  --brand:#5B3DF5;
  --brand-d:#3A22C9;
  --brand-l:#EDE9FE;
  --accent:#12D6B4;
  --warm:#FF7A45;
  --ink-900:#14121F;
  --ink-700:#3A3752;
  --ink-500:#6E6A85;
  --line:#E6E4F0;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --dark:#17142A;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(20,18,31,.05),0 10px 28px rgba(20,18,31,.06);
  --shadow-2:0 16px 40px rgba(91,61,245,.16);
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,dl,dd,dt,figure{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-family:var(--font-num);letter-spacing:-.01em;}

.container-x{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container-x{padding:0 32px;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,18,31,.08);}
.nav-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:10px 0;}
@media (min-width:1024px){.nav-bar{flex-wrap:nowrap;height:72px;padding:0;gap:20px;}}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:17px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  box-shadow:0 6px 16px rgba(91,61,245,.35);
}
.brand-text{font-weight:700;font-size:16.5px;letter-spacing:-.01em;white-space:nowrap;}
.nav-tabs{
  order:3;flex:1 0 100%;display:flex;gap:6px;padding:4px;
  background:var(--bg);border-radius:14px;overflow-x:auto;scrollbar-width:none;
}
.nav-tabs::-webkit-scrollbar{display:none;}
@media (min-width:1024px){.nav-tabs{order:0;flex:0 1 auto;margin-left:8px;overflow:visible;}}
.nav-tab{
  flex:none;padding:8px 15px;border-radius:10px;font-size:14.5px;color:var(--ink-700);
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-tab:hover{background:var(--brand-l);color:var(--brand-d);}
.nav-tab.is-active{
  background:var(--brand);color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 6px 14px rgba(91,61,245,.28);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);color:var(--ink-700);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-l);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.32);}
.btn-warm:hover{background:#F2652E;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(91,61,245,.28);}
.btn-primary:hover{background:var(--brand-d);}
.btn-outline{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06);}
.btn-outline:hover{background:rgba(255,255,255,.16);}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink-700);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-d);background:var(--brand-l);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;background-color:#17142A;
  background-image:linear-gradient(115deg,rgba(91,61,245,.90) 0%,rgba(58,34,201,.84) 45%,rgba(23,20,42,.95) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,214,180,.35),transparent 70%);
}
.hero-inner{position:relative;z-index:2;display:grid;gap:40px;padding:52px 0 60px;}
@media (min-width:1024px){.hero-inner{grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);align-items:center;gap:56px;padding:84px 0 96px;}}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  font-size:13px;letter-spacing:.04em;color:#E9E5FF;
}
.hero-h1{margin-top:20px;font-size:32px;line-height:1.18;font-weight:700;letter-spacing:-.02em;color:#fff;}
@media (min-width:768px){.hero-h1{font-size:42px;}}
@media (min-width:1024px){.hero-h1{font-size:50px;}}
.hero-sub{margin-top:16px;max-width:620px;font-size:17px;line-height:1.7;color:#D8D3F5;}
@media (min-width:1024px){.hero-sub{font-size:18px;}}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats{margin-top:36px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
@media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));}}
.hero-stat{padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);}
.hero-stat strong{display:block;font-family:var(--font-num);font-size:22px;color:var(--accent);letter-spacing:-.02em;}
.hero-stat span{font-size:13px;color:#CFC9EE;}
.hero-card{position:relative;border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.18);box-shadow:0 24px 60px rgba(10,8,25,.45);}
.hero-card img{width:100%;aspect-ratio:3/2;object-fit:cover;filter:saturate(1.05);}
.hero-badge{
  position:absolute;top:16px;left:16px;width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;background:var(--warm);color:#fff;
  font-family:var(--font-num);font-weight:700;font-size:16px;
  box-shadow:0 10px 24px rgba(255,122,69,.4);
}
.hero-card-cap{position:absolute;left:0;right:0;bottom:0;padding:22px;background:linear-gradient(to top,rgba(23,20,42,.94),rgba(23,20,42,0));}
.hero-card-cap b{display:block;font-size:16.5px;}
.hero-card-cap small{font-size:13px;color:#C9C3EA;}

/* ============ 区块通用 ============ */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:80px 0;}}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px;}
.section-title{font-size:24px;font-weight:700;letter-spacing:-.02em;line-height:1.3;}
@media (min-width:1024px){.section-title{font-size:30px;}}
.section-desc{margin-top:8px;max-width:640px;font-size:15.5px;color:var(--ink-500);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);transition:gap .2s ease,color .2s ease;}
.link-more:hover{gap:11px;color:var(--brand-d);}

/* ============ 卡片 ============ */
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand);}
.card-cover{position:relative;overflow:hidden;aspect-ratio:16/9;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-num{
  position:absolute;top:12px;left:12px;min-width:34px;height:34px;padding:0 9px;border-radius:10px;
  display:grid;place-items:center;background:rgba(23,20,42,.74);color:#fff;
  font-family:var(--font-num);font-size:14px;font-weight:700;
}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px;}
.card-chip{align-self:flex-start;padding:4px 11px;border-radius:999px;background:var(--brand-l);color:var(--brand-d);font-size:12.5px;font-weight:600;}
.card-title{font-size:18px;font-weight:700;line-height:1.5;letter-spacing:-.01em;}
.card-text{font-size:14.5px;line-height:1.75;color:var(--ink-500);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);
  display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--ink-500);font-family:var(--font-num);
}

/* ============ 非对称精选 ============ */
.feature-grid{display:grid;gap:20px;}
@media (min-width:1024px){.feature-grid{grid-template-columns:7fr 5fr;}}
.feature-main{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:20px;transition:box-shadow .25s ease,border-color .25s ease;}
.feature-main:hover{box-shadow:var(--shadow-2);border-color:var(--brand);}
.feature-main .card-cover{aspect-ratio:16/9;}
.feature-main .card-title{font-size:22px;}
.side-list{display:flex;flex-direction:column;gap:14px;}
.side-item{
  display:grid;grid-template-columns:92px minmax(0,1fr);gap:14px;align-items:center;
  padding:12px;background:#fff;border:1px solid var(--line);border-radius:14px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.side-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand);}
.side-item img{width:92px;height:70px;object-fit:cover;border-radius:10px;}
.side-item h3{font-size:16px;font-weight:700;line-height:1.5;}
.side-item p{margin-top:4px;font-size:13.5px;color:var(--ink-500);}

/* ============ 行式列表（CMS） ============ */
.row-list{display:flex;flex-direction:column;gap:12px;}
.row-item{
  display:grid;grid-template-columns:1fr;gap:12px;
  padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:16px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
@media (min-width:768px){.row-item{grid-template-columns:92px minmax(0,1fr) auto;align-items:center;gap:22px;}}
.row-item:hover{border-color:var(--brand);box-shadow:0 12px 30px rgba(91,61,245,.12);transform:translateX(4px);}
.row-date{
  display:grid;place-items:center;height:64px;padding:6px;border-radius:14px;text-align:center;
  background:var(--brand-l);color:var(--brand-d);
  font-family:var(--font-num);font-size:14px;font-weight:700;line-height:1.25;
  transition:background .25s ease,color .25s ease;
}
.row-item:hover .row-date{background:var(--brand);color:#fff;}
.row-title{font-size:17px;font-weight:700;line-height:1.5;}
.row-text{margin-top:6px;font-size:14px;color:var(--ink-500);line-height:1.7;}
.row-chip{
  justify-self:start;padding:5px 12px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink-700);
  font-size:12.5px;white-space:nowrap;
}
.empty-state{
  padding:56px 24px;text-align:center;border:1px dashed var(--line);border-radius:18px;background:#fff;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;
  background:var(--brand-l);color:var(--brand-d);font-family:var(--font-num);font-weight:700;
}
.empty-state p{font-size:15.5px;color:var(--ink-500);margin-bottom:18px;}

/* ============ 相关推荐 ============ */
.mini-card{display:flex;flex-direction:column;gap:12px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand);}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;}
.mini-card h3{font-size:15.5px;font-weight:700;line-height:1.5;}
.mini-card span{font-size:12.5px;color:var(--ink-500);font-family:var(--font-num);}

/* ============ CTA 横幅 ============ */
.cta-band{
  display:grid;gap:24px;padding:38px 26px;border-radius:24px;color:#fff;background-color:var(--dark);
  background-image:linear-gradient(110deg,rgba(91,61,245,.93),rgba(23,20,42,.95)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
@media (min-width:1024px){.cta-band{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:40px;padding:56px;}}
.cta-band h2{font-size:24px;line-height:1.35;font-weight:700;letter-spacing:-.02em;}
@media (min-width:1024px){.cta-band h2{font-size:30px;}}
.cta-band p{margin-top:10px;font-size:15.5px;color:#D5D0EE;max-width:640px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .2s ease;}
.faq-item.is-open{border-color:var(--brand);}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;padding:18px 20px;text-align:left;font-size:16.5px;font-weight:600;line-height:1.6;}
.faq-idx{
  flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-family:var(--font-num);font-size:13px;
}
.faq-sign{margin-left:auto;position:relative;flex:none;width:22px;height:22px;transition:transform .25s ease;}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--ink-500);border-radius:2px;}
.faq-sign::before{width:14px;height:2px;left:4px;top:10px;}
.faq-sign::after{width:2px;height:14px;left:10px;top:4px;}
.faq-item.is-open .faq-sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 20px 20px 64px;font-size:15px;line-height:1.85;color:var(--ink-500);}
.faq-item.is-open .faq-a{max-height:340px;}

/* ============ 搜索条 ============ */
.search-strip{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.search-strip input{
  flex:1 1 260px;height:48px;padding:0 16px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-900);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-strip input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,61,245,.16);}
.search-strip input::placeholder{color:#A6A1BC;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#B9B4D2;padding:56px 0 0;}
.footer-grid{display:grid;gap:32px;padding-bottom:40px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.footer-col h4{position:relative;padding-bottom:12px;margin-bottom:16px;font-size:14px;font-weight:600;color:#8E88AE;letter-spacing:.04em;}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:3px;border-radius:2px;background:var(--brand);}
.footer-col a{display:block;padding:6px 0;font-size:14.5px;color:#C9C4E0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-col p{font-size:14.5px;line-height:1.85;color:#A8A2C6;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand b{color:#fff;font-size:16.5px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7D7799;
}

/* roulang page: category1 */
:root{
  --brand:#5B3DF5; --brand-d:#3A22C9; --brand-l:#EDE9FE;
  --accent:#12D6B4; --warm:#FF7A45;
  --ink-900:#14121F; --ink-700:#3A3752; --ink-500:#6E6A85;
  --line:#E6E4F0; --bg:#F6F5FB; --surface:#FFFFFF; --dark:#17142A;
  --r-lg:20px; --r:16px; --r-sm:12px;
  --sh-1:0 1px 2px rgba(20,18,31,.05), 0 10px 28px rgba(20,18,31,.06);
  --sh-2:0 16px 40px rgba(91,61,245,.16);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
.site-body{margin:0;padding:0;font-family:var(--font-cn);font-size:16px;line-height:1.8;color:var(--ink-700);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.site-body a{color:inherit;text-decoration:none}
.site-body img{max-width:100%;display:block;border:0}
.site-body button{font-family:inherit;cursor:pointer}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{color:var(--ink-900);margin:0;line-height:1.3;font-weight:700}
.site-body p{margin:0}
.site-body ul{margin:0;padding:0;list-style:none}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.container-x{padding-left:32px;padding-right:32px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(20,18,31,.08)}
.nav-bar{display:flex;align-items:center;gap:18px;height:64px}
@media(min-width:1024px){.nav-bar{height:72px;gap:26px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;box-shadow:0 6px 16px rgba(91,61,245,.28)}
.brand-text{font-size:16px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
@media(min-width:768px){.brand-text{font-size:17px}}
.nav-tabs{display:flex;align-items:center;gap:8px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{flex-shrink:0;padding:8px 15px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink-700);background:#fff;border:1px solid var(--line);white-space:nowrap;transition:all .2s ease}
.nav-tab:hover{background:var(--brand-l);border-color:#D8D0FB;color:var(--brand-d)}
.nav-tab:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-tab.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:inset 0 -2px 0 rgba(0,0,0,.14),0 6px 16px rgba(91,61,245,.25)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-700);display:flex;align-items:center;justify-content:center;transition:all .2s ease}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-l)}
.icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;font-weight:600;font-size:15px;padding:13px 24px;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;white-space:nowrap}
.btn:active{transform:translateY(0) scale(.99)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.28)}
.btn-warm:hover{background:#F0662C;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,69,.34)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(91,61,245,.26)}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px)}
.btn-line{background:#fff;color:var(--brand-d);border-color:#D8D0FB}
.btn-line:hover{background:var(--brand-l);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:11px}
.btn-lg{padding:15px 30px;font-size:16px}
@media(max-width:767px){.nav-actions .btn-warm{display:none}}

/* ---------- breadcrumb ---------- */
.crumb{padding:18px 0 0;font-size:13px;color:var(--ink-500)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li::after{content:"›";margin-left:8px;color:#B9B5CC}
.crumb li:last-child::after{content:"";margin:0}
.crumb a:hover{color:var(--brand)}
.crumb .current{color:var(--ink-700);font-weight:600}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;margin-top:18px}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;filter:saturate(1.05);opacity:.55}
.hero-veil{position:absolute;inset:0;background:linear-gradient(120deg,rgba(58,34,201,.92) 0%,rgba(91,61,245,.82) 46%,rgba(23,20,42,.86) 100%)}
.hero-inner{position:relative;display:grid;gap:36px;padding:56px 0 64px}
@media(min-width:1024px){.hero-inner{grid-template-columns:1.15fr .85fr;align-items:center;padding:76px 0 84px;gap:48px}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(18,214,180,.16);border:1px solid rgba(18,214,180,.5);color:#7DF3DE;font-size:13px;font-weight:600;letter-spacing:.02em}
.hero-title{color:#fff;font-size:32px;line-height:1.2;letter-spacing:-.02em;margin:18px 0 0;font-weight:700}
@media(min-width:768px){.hero-title{font-size:44px}}
@media(min-width:1024px){.hero-title{font-size:50px}}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.85;color:#D8D3F5;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:34px;max-width:660px}
@media(min-width:640px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat{padding:14px 16px;border-radius:var(--r-sm);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16)}
.stat-num{font-family:var(--font-num);font-size:22px;font-weight:700;color:#fff;letter-spacing:.01em}
.stat-num span{font-size:13px;color:#8FF0DF;margin-left:2px}
.stat-label{font-size:12.5px;color:#C7C1E8;margin-top:2px;line-height:1.5}
.hero-side{position:relative}
.hero-card{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.2);box-shadow:0 24px 60px rgba(10,8,25,.5)}
.hero-card img{width:100%;height:230px;object-fit:cover}
@media(min-width:768px){.hero-card img{height:300px}}
.hero-card-cap{position:absolute;left:0;right:0;bottom:0;padding:36px 20px 18px;background:linear-gradient(to top,rgba(15,12,32,.92),rgba(15,12,32,0))}
.hero-card-cap b{display:block;color:#fff;font-size:16px}
.hero-card-cap span{font-size:13px;color:#C7C1E8}
.badge-num{position:absolute;top:-14px;left:-14px;width:56px;height:56px;border-radius:16px;background:var(--accent);color:#062B24;font-family:var(--font-num);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 12px 26px rgba(18,214,180,.36)}
@media(max-width:1023px){.badge-num{top:10px;left:10px;width:48px;height:48px;border-radius:14px;font-size:16px}}

/* ---------- band / sections ---------- */
.band{padding:56px 0}
@media(min-width:1024px){.band{padding:80px 0}}
.band-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-dark{background:var(--dark);color:#CFCAE8}
.band-dark h2,.band-dark h3{color:#fff}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
@media(min-width:1024px){.section-head{margin-bottom:40px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
.h2{font-size:25px;letter-spacing:-.015em;margin-top:10px}
@media(min-width:1024px){.h2{font-size:32px}}
.lead{margin-top:12px;font-size:16px;color:var(--ink-500);max-width:760px;line-height:1.85}
.link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--brand-d)}
.link-more i{transition:transform .2s ease}
.link-more:hover i{transform:translateX(4px)}

/* ---------- index grid ---------- */
.index-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:640px){.index-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.index-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.index-item{position:relative;display:flex;gap:14px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.index-item::before{content:"";position:absolute;left:0;top:18px;width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--brand);opacity:0;transition:opacity .2s ease}
.index-item:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-2)}
.index-item:hover::before{opacity:1}
.index-no{flex-shrink:0;width:42px;height:42px;border-radius:12px;background:var(--brand-l);color:var(--brand-d);font-family:var(--font-num);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px}
.index-item:hover .index-no{background:var(--brand);color:#fff}
.index-item h3{font-size:16.5px;margin-bottom:6px}
.index-item p{font-size:14px;color:var(--ink-500);line-height:1.75}

/* ---------- split sections ---------- */
.split{display:grid;gap:28px;align-items:center}
@media(min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);position:relative}
.split-media img{width:100%;height:250px;object-fit:cover}
@media(min-width:768px){.split-media img{height:340px}}
.split-body h3{font-size:21px;margin-bottom:14px}
@media(min-width:1024px){.split-body h3{font-size:24px}}
.split-body p{color:var(--ink-500);font-size:15.5px;line-height:1.9}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-700)}
.check-list i{flex-shrink:0;width:22px;height:22px;border-radius:999px;background:rgba(18,214,180,.16);color:#0B9E86;display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:4px}
.split + .split{margin-top:48px}
@media(min-width:1024px){.split + .split{margin-top:72px}}
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--brand-l);color:var(--brand-d)}
.pill-accent{background:rgba(18,214,180,.14);color:#0B9E86}
.pill-warm{background:rgba(255,122,69,.14);color:#D2521D}

/* ---------- steps ---------- */
.steps{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:640px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-no{width:38px;height:38px;border-radius:11px;background:var(--warm);color:#fff;font-family:var(--font-num);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px}
.step h3{font-size:16.5px;margin:16px 0 8px}
.step p{font-size:14px;color:var(--ink-500)}

/* ---------- compare ---------- */
.compare{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:768px){.compare{grid-template-columns:repeat(2,minmax(0,1fr))}}
.compare-card{border-radius:var(--r-lg);padding:26px 24px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05)}
.compare-card b{display:block;color:#fff;font-size:18px;margin-bottom:10px}
.compare-card p{color:#B7B1D6;font-size:14.5px}
.compare-card ul{margin-top:16px;display:grid;gap:10px}
.compare-card li{display:flex;gap:10px;color:#D8D3F5;font-size:14.5px}
.compare-card li i{color:var(--accent);font-size:12px;margin-top:5px}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease}
.faq details[open]{border-color:#D8D0FB}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:18px 20px;font-weight:600;color:var(--ink-900);font-size:15.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q-no{flex-shrink:0;width:28px;height:28px;border-radius:999px;background:var(--brand);color:#fff;font-family:var(--font-num);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.faq summary .q-plus{margin-left:auto;flex-shrink:0;width:26px;height:26px;position:relative;transition:transform .2s ease}
.faq summary .q-plus::before,.faq summary .q-plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px}
.faq summary .q-plus::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq summary .q-plus::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq details[open] summary .q-plus{transform:rotate(45deg)}
.faq summary:hover{background:var(--brand-l)}
.faq summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq .faq-a{padding:0 20px 20px 62px;font-size:15px;color:var(--ink-500);line-height:1.85}
@media(max-width:520px){.faq .faq-a{padding-left:20px}}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-lg);padding:36px 26px;display:grid;gap:24px;align-items:center}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr auto;padding:48px 48px}}
.cta-band::after{content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;background:linear-gradient(135deg,var(--brand),rgba(91,61,245,0));border-radius:50%;opacity:.45;pointer-events:none}
.cta-band h2{color:#fff;font-size:24px;position:relative;z-index:1}
@media(min-width:1024px){.cta-band h2{font-size:30px}}
.cta-band p{color:#C0BADF;margin-top:12px;font-size:15.5px;max-width:640px;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#B7B1D6;margin-top:0;padding:52px 0 0}
.footer-grid{display:grid;gap:30px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.04em;margin-bottom:16px;padding-bottom:10px;position:relative}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--brand)}
.footer-col a{display:block;font-size:14.5px;color:#B7B1D6;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-col p{font-size:14px;color:#9C96BC;line-height:1.8;margin-bottom:10px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{color:#fff;font-size:16.5px}
.footer-bottom{margin-top:40px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--ink-500)}
.footer-bottom .num{color:#8B85AE}

/* roulang page: article */
:root{
  --brand:#5B3DF5;
  --brand-d:#3A22C9;
  --brand-l:#EDE9FE;
  --accent:#12D6B4;
  --warm:#FF7A45;
  --warm-d:#F0652F;
  --ink-900:#14121F;
  --ink-700:#3A3752;
  --ink-500:#6E6A85;
  --line:#E6E4F0;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --dark:#17142A;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(20,18,31,.05), 0 10px 28px rgba(20,18,31,.06);
  --shadow-2:0 16px 40px rgba(91,61,245,.16);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1024px){
  .container-x{padding:0 32px;}
}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(20,18,31,.08);}
.nav-bar{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:64px;
  padding:10px 0;
}
@media (min-width:1024px){
  .nav-bar{min-height:72px;padding:0;gap:24px;}
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#fff;font-weight:700;font-size:17px;
  box-shadow:0 6px 16px rgba(91,61,245,.28);
}
.brand-text{font-weight:700;font-size:16px;letter-spacing:-.01em;white-space:nowrap;}
.nav-tabs{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;
  overflow-x:auto;
  scrollbar-width:none;
  padding:2px;
}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:var(--ink-700);
  border:1px solid transparent;
  background:transparent;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-tab:hover{background:var(--brand-l);color:var(--brand-d);}
.nav-tab.is-active{
  background:var(--brand);
  color:#fff;
  box-shadow:inset 0 -2px 0 rgba(0,0,0,.12);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;
  display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);
  color:var(--ink-700);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0);}
.btn:disabled{opacity:.6;cursor:not-allowed;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-warm{background:var(--warm);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.26);}
.btn-warm:hover{background:var(--warm-d);transform:translateY(-2px);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 22px rgba(91,61,245,.24);}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}

/* ============ 通用区块 ============ */
main{display:block;}
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:80px 0;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand);}
.chip{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:var(--brand-l);color:var(--brand-d);
  white-space:nowrap;
}
.chip-accent{background:rgba(18,214,180,.14);color:#0B8F79;}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--ink-500);
  padding:14px 0;
}
.crumb a{color:var(--ink-500);transition:color .2s ease;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B9B5CC;}
.crumb .now{color:var(--ink-900);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头部 ============ */
.post-hero{
  position:relative;
  background:linear-gradient(120deg,#221A56 0%,#4A2FD6 46%,#12D6B4 130%);
  color:#fff;
  overflow:hidden;
}
.post-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.22;filter:saturate(1.05);
  mix-blend-mode:luminosity;
}
.post-hero .container-x{position:relative;z-index:2;}
.post-hero-inner{padding:44px 0 48px;max-width:840px;}
@media (min-width:1024px){.post-hero-inner{padding:60px 0 66px;}}
.post-hero h1{
  font-size:30px;line-height:1.22;font-weight:700;letter-spacing:-.02em;
  margin-top:16px;
}
@media (min-width:768px){.post-hero h1{font-size:42px;}}
@media (min-width:1024px){.post-hero h1{font-size:50px;}}
.post-hero .lede{
  margin-top:16px;font-size:16px;line-height:1.85;
  color:rgba(255,255,255,.82);max-width:720px;
}
@media (min-width:1024px){.post-hero .lede{font-size:17px;}}
.post-hero .chip{background:rgba(255,255,255,.16);color:#fff;}
.post-hero .chip-accent{background:rgba(18,214,180,.26);color:#CFFBF1;}

/* ============ 文章主体 ============ */
.post-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding:40px 0 0;
}
@media (min-width:1024px){
  .post-layout{grid-template-columns:minmax(0,1fr) 268px;gap:48px;padding:56px 0 0;}
}
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
}
.post-head{padding:26px 24px 22px;display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:flex-start;}
@media (min-width:1024px){.post-head{padding:30px 42px 24px;}}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13.5px;color:var(--ink-500);}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C5DB;}
.meta-num{font-family:var(--font-num);letter-spacing:.02em;}
.share-group{display:flex;gap:10px;}
.mini-btn{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 14px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  font-size:13.5px;font-weight:600;color:var(--ink-700);
  cursor:pointer;transition:all .2s ease;
}
.mini-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.mini-btn.is-active{background:var(--brand-l);border-color:var(--brand);color:var(--brand-d);}

.post-body{padding:0 24px 34px;}
@media (min-width:1024px){.post-body{padding:0 42px 46px;}}

.post-content{max-width:800px;font-size:16.5px;line-height:1.85;color:var(--ink-700);}
@media (min-width:1024px){.post-content{font-size:17px;}}
.post-content > * + *{margin-top:20px;}
.post-content h2{
  font-size:24px;line-height:1.35;font-weight:700;color:var(--ink-900);
  margin-top:44px;padding-top:18px;border-top:1px solid var(--line);
  position:relative;letter-spacing:-.01em;
}
.post-content h2::before{
  content:"";position:absolute;top:-1px;left:0;width:52px;height:3px;border-radius:2px;background:var(--brand);
}
@media (min-width:1024px){.post-content h2{font-size:28px;}}
.post-content h3{
  font-size:19px;line-height:1.5;font-weight:700;color:var(--ink-900);margin-top:32px;
}
@media (min-width:1024px){.post-content h3{font-size:21px;}}
.post-content h4{font-size:17px;font-weight:700;color:var(--ink-900);margin-top:24px;}
.post-content p{color:var(--ink-700);}
.post-content strong{color:var(--ink-900);font-weight:700;}
.post-content a{color:var(--brand);border-bottom:1px solid rgba(91,61,245,.35);transition:color .2s ease,border-color .2s ease;}
.post-content a:hover{color:var(--brand-d);border-color:var(--brand-d);}
.post-content ul{padding-left:0;}
.post-content ul li{
  position:relative;padding-left:22px;margin-top:10px;color:var(--ink-700);
}
.post-content ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:3px;
  background:var(--accent);
}
.post-content ol{counter-reset:pc;padding-left:0;}
.post-content ol li{
  counter-increment:pc;position:relative;padding-left:40px;margin-top:12px;
}
.post-content ol li::before{
  content:counter(pc,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  font-family:var(--font-num);font-size:13px;font-weight:700;
  width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;
  background:var(--brand-l);color:var(--brand-d);
}
.post-content blockquote{
  margin:28px 0;padding:20px 24px;
  background:var(--bg);
  border-left:3px solid var(--brand);
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--ink-700);font-size:16px;
}
.post-content blockquote p{margin:0;color:var(--ink-700);}
.post-content img{
  border-radius:var(--radius);
  margin:26px 0;
  width:100%;
  box-shadow:var(--shadow-1);
}
.post-content figure{margin:26px 0;}
.post-content figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px;}
.post-content hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.post-content table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;
}
.post-content thead th{
  background:var(--brand-l);color:var(--brand-d);
  font-weight:700;text-align:left;
  padding:12px 14px;border-bottom:1px solid #DDD6FB;
  white-space:nowrap;
}
.post-content tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--ink-700);vertical-align:top;}
.post-content tbody tr:last-child td{border-bottom:0;}
.post-content tbody tr:nth-child(even){background:#FBFAFF;}
.post-content pre{
  background:var(--dark);color:#E9E6FF;
  padding:18px 20px;border-radius:var(--radius-sm);
  overflow-x:auto;font-family:var(--font-num);font-size:13.5px;line-height:1.7;
  margin:26px 0;
}
.post-content code{
  font-family:var(--font-num);font-size:13.5px;
  background:var(--brand-l);color:var(--brand-d);
  padding:2px 7px;border-radius:6px;
}
.post-content pre code{background:transparent;color:inherit;padding:0;}

/* 目录 */
.post-side{display:none;}
@media (min-width:1024px){
  .post-side{display:block;}
  .post-side .sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
}
.toc{padding:22px 18px;}
.toc h3{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--ink-900);display:flex;align-items:center;gap:8px;}
.toc h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow-y:auto;}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--ink-500);
  padding:7px 10px;border-radius:9px;border-left:2px solid transparent;
  transition:all .18s ease;
}
.toc-list a:hover{background:var(--brand-l);color:var(--brand-d);}
.toc-list a.is-current{color:var(--brand-d);background:var(--brand-l);border-left-color:var(--brand);font-weight:600;}
.toc-list a.lv3{padding-left:22px;font-size:13px;}
.side-card{padding:20px 18px;background:var(--dark);color:#fff;border-radius:var(--radius-lg);border:0;}
.side-card h3{font-size:16px;font-weight:700;}
.side-card p{margin-top:10px;font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.72);}
.side-card .btn{margin-top:16px;width:100%;}

/* 移动端目录折叠 */
.toc-mobile{margin-bottom:18px;}
.toc-mobile-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 16px;border-radius:var(--radius-sm);
  background:var(--brand-l);border:1px solid #DDD6FB;color:var(--brand-d);
  font-size:14.5px;font-weight:600;cursor:pointer;
}
.toc-mobile-toggle .plus{transition:transform .2s ease;font-size:18px;line-height:1;}
.toc-mobile.is-open .toc-mobile-toggle .plus{transform:rotate(45deg);}
.toc-mobile-panel{display:none;padding:10px 0 0;}
.toc-mobile.is-open .toc-mobile-panel{display:block;}
@media (min-width:1024px){.toc-mobile{display:none;}}

/* 空态 */
.empty-state{
  border:1.5px dashed #CFC9E8;
  border-radius:var(--radius-lg);
  background:#FBFAFF;
  padding:52px 24px;
  text-align:center;
}
.empty-state .icon{
  width:52px;height:52px;border-radius:16px;margin:0 auto 16px;
  display:grid;place-items:center;background:var(--brand-l);color:var(--brand-d);font-size:22px;font-weight:700;
}
.empty-state h2{font-size:20px;font-weight:700;}
.empty-state p{margin-top:10px;color:var(--ink-500);font-size:15px;}
.empty-state .btn{margin-top:22px;}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row .chip{height:30px;padding:0 14px;font-size:13px;transition:all .2s ease;}
.tag-row .chip:hover{background:var(--brand);color:#fff;}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);color:#fff;
  border-radius:var(--radius-lg);
  padding:32px 24px;
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;
}
@media (min-width:1024px){.cta-band{padding:40px 44px;}}
.cta-band::before{
  content:"";position:absolute;left:-10%;top:-60%;width:70%;height:220%;
  background:linear-gradient(120deg,rgba(91,61,245,.85),rgba(18,214,180,.32));
  transform:rotate(14deg);filter:blur(6px);opacity:.55;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:22px;font-weight:700;line-height:1.4;}
@media (min-width:1024px){.cta-band h2{font-size:28px;}}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.76);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr);}}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--brand);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-l);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-num{
  position:absolute;left:12px;top:12px;
  font-family:var(--font-num);font-size:12px;font-weight:700;
  padding:3px 9px;border-radius:999px;
  background:rgba(20,18,31,.72);color:#fff;letter-spacing:.04em;
}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:16.5px;font-weight:700;line-height:1.45;color:var(--ink-900);}
.rel-body p{font-size:14px;line-height:1.7;color:var(--ink-500);}
.rel-foot{margin-top:auto;font-size:12.5px;color:var(--ink-500);display:flex;align-items:center;gap:8px;}

/* 返回 */
.back-bar{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);
}
.back-bar .left{font-size:14.5px;color:var(--ink-500);}
.back-bar .left b{color:var(--ink-900);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:26px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s ease;
}
.faq-item.is-open{border-color:var(--brand);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-idx{
  width:28px;height:28px;flex:0 0 28px;border-radius:999px;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:12.5px;font-weight:700;
  background:var(--brand-l);color:var(--brand-d);
}
.faq-item.is-open .faq-idx{background:var(--brand);color:#fff;}
.faq-sign{margin-left:auto;font-size:20px;line-height:1;color:var(--brand);transition:transform .2s ease;}
.faq-item.is-open .faq-sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 20px 20px 62px;font-size:15px;line-height:1.85;color:var(--ink-500);}

/* ============ footer ============ */
.site-footer{margin-top:64px;background:var(--dark);color:rgba(255,255,255,.72);}
@media (min-width:1024px){.site-footer{margin-top:88px;}}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:34px;
  padding:52px 0 36px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-col p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-col h4{
  position:relative;font-size:14px;font-weight:700;color:#fff;
  padding-bottom:12px;margin-bottom:14px;
}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--brand);}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.66);padding:5px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-col p + p{margin-top:8px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between;align-items:center;
  padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:var(--ink-500);
}

/* roulang page: category2 */
:root{
    --brand:#5B3DF5;
    --brand-d:#3A22C9;
    --brand-l:#EDE9FE;
    --accent:#12D6B4;
    --warm:#FF7A45;
    --ink-900:#14121F;
    --ink-700:#3A3752;
    --ink-500:#6E6A85;
    --line:#E6E4F0;
    --bg:#F6F5FB;
    --surface:#FFFFFF;
    --dark:#17142A;
    --radius-lg:20px;
    --radius:16px;
    --radius-sm:12px;
    --shadow-1:0 1px 2px rgba(20,18,31,.05),0 10px 28px rgba(20,18,31,.06);
    --shadow-2:0 16px 40px rgba(91,61,245,.16);
    --num-font:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    background:var(--bg);
    color:var(--ink-900);
    font-size:16.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit}
  button{cursor:pointer}
  h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  section[id],div[id],article[id]{scroll-margin-top:96px}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:1024px){.container-x{padding:0 32px}}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    transition:box-shadow .22s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 26px rgba(20,18,31,.08)}
  .nav-bar{display:flex;align-items:center;gap:18px;height:64px}
  @media (min-width:1024px){.nav-bar{height:72px}}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:34px;height:34px;border-radius:12px;
    background:var(--brand);color:#fff;
    display:grid;place-items:center;
    font-weight:700;font-size:16px;
    box-shadow:0 8px 18px rgba(91,61,245,.28);
  }
  .brand-text{font-weight:700;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
  .nav-tabs{
    flex:1 1 auto;
    display:flex;align-items:center;justify-content:center;gap:8px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .nav-tabs::-webkit-scrollbar{display:none}
  .nav-tab{
    padding:8px 15px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    font-size:14.5px;
    color:var(--ink-700);
    white-space:nowrap;
    transition:background .18s,border-color .18s,color .18s,box-shadow .18s;
  }
  .nav-tab:hover{background:var(--brand-l);border-color:#D9D2FB;color:var(--brand-d)}
  .nav-tab.is-active{
    background:var(--brand);
    border-color:var(--brand);
    color:#fff;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 6px 16px rgba(91,61,245,.28);
  }
  .nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .icon-btn{
    width:38px;height:38px;border-radius:50%;
    border:1px solid var(--line);background:#fff;color:var(--ink-700);
    display:grid;place-items:center;
    transition:border-color .18s,color .18s,background .18s;
  }
  .icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-l)}
  .icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-sm);
    padding:12px 22px;
    font-weight:600;font-size:15.5px;
    border:1px solid transparent;
    transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;
    white-space:nowrap;
  }
  .btn:hover{transform:translateY(-2px)}
  .btn:active{transform:translateY(0)}
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .btn-sm{padding:9px 16px;font-size:14.5px;border-radius:11px}
  .btn-warm{background:var(--warm);color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.28)}
  .btn-warm:hover{background:#F0692F;box-shadow:0 14px 30px rgba(255,122,69,.34)}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 28px rgba(91,61,245,.26)}
  .btn-primary:hover{background:var(--brand-d);box-shadow:0 16px 34px rgba(91,61,245,.3)}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
  .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.75)}
  .btn-line{background:#fff;border-color:var(--line);color:var(--ink-700)}
  .btn-line:hover{border-color:var(--brand);color:var(--brand-d);background:var(--brand-l)}

  /* ============ 标签 ============ */
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:999px;
    font-size:13px;font-weight:600;
    background:var(--brand-l);color:var(--brand-d);
  }
  .chip-accent{background:rgba(18,214,180,.16);color:#0B8F79}
  .chip-warm{background:rgba(255,122,69,.16);color:#C74E1B}
  .chip-plain{background:var(--bg);color:var(--ink-500);font-weight:500}

  /* ============ Hero ============ */
  .hero{position:relative;overflow:hidden;color:#fff;background:var(--dark)}
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    filter:saturate(1.05);opacity:.55;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(58,34,201,.93) 0%,rgba(91,61,245,.74) 46%,rgba(23,20,42,.9) 100%);
  }
  .hero-inner{position:relative;z-index:2;padding:60px 0 56px}
  @media (min-width:1024px){.hero-inner{padding:92px 0 84px}}
  .hero-grid{display:grid;gap:38px;grid-template-columns:1fr}
  @media (min-width:1024px){.hero-grid{grid-template-columns:1.12fr .88fr;align-items:center;gap:52px}}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:rgba(18,214,180,.18);
    color:#8CF5E3;font-size:13px;font-weight:600;
    border:1px solid rgba(18,214,180,.35);
  }
  .hero-title{
    margin:20px 0 0;
    font-size:32px;font-weight:700;line-height:1.18;letter-spacing:-.02em;
  }
  @media (min-width:768px){.hero-title{font-size:42px}}
  @media (min-width:1024px){.hero-title{font-size:52px}}
  .hero-title span{display:block;color:#D8D2FF;font-size:.74em;font-weight:600;margin-top:10px;letter-spacing:0}
  .hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:#C9C4E4;max-width:620px}
  @media (min-width:1024px){.hero-sub{font-size:18px}}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .hero-stats{
    display:grid;grid-template-columns:repeat(2,1fr);gap:18px;
    margin-top:38px;padding-top:26px;
    border-top:1px solid rgba(255,255,255,.16);
  }
  @media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,1fr)}}
  .hero-stats .num{font-family:var(--num-font);font-size:26px;font-weight:700;color:#fff;line-height:1.2}
  .hero-stats .lbl{font-size:13.5px;color:#B9B3D4;margin-top:4px}

  .hero-card{
    background:#211C3D;
    border:1px solid rgba(255,255,255,.14);
    border-radius:var(--radius-lg);
    padding:26px;
    box-shadow:0 24px 60px rgba(0,0,0,.28);
  }
  .hero-card h2{font-size:17px;color:#fff;display:flex;align-items:center;gap:10px}
  .hero-card h2::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--accent)}
  .hero-card-list{margin-top:18px;display:grid;gap:14px}
  .hero-card-list li{
    display:flex;gap:12px;align-items:flex-start;
    padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.13);
    font-size:14.5px;color:#CFCADD;
  }
  .hero-card-list li:last-child{border-bottom:0;padding-bottom:0}
  .hero-card-list b{color:#fff;font-weight:600;display:block;font-size:15px}
  .dot{
    flex:0 0 auto;width:9px;height:9px;border-radius:50%;
    background:var(--accent);margin-top:9px;
    box-shadow:0 0 0 4px rgba(18,214,180,.14);
  }
  .dot-warm{background:var(--warm);box-shadow:0 0 0 4px rgba(255,122,69,.16)}
  .dot-purple{background:#8F7BFF;box-shadow:0 0 0 4px rgba(143,123,255,.18)}
  .hero-card-note{margin-top:16px;font-size:13px;color:#9E98B8}

  /* ============ 锚点筛选条 ============ */
  .anchor-bar{position:relative;z-index:5;margin-top:-26px}
  .anchor-scroll{
    display:flex;gap:10px;overflow-x:auto;
    background:#fff;border:1px solid var(--line);
    border-radius:var(--radius);
    padding:14px 16px;
    box-shadow:var(--shadow-1);
    scrollbar-width:none;
  }
  .anchor-scroll::-webkit-scrollbar{display:none}
  .chip-link{
    padding:8px 16px;border-radius:999px;
    background:var(--bg);color:var(--ink-700);
    font-size:14px;white-space:nowrap;
    transition:background .18s,color .18s;
  }
  .chip-link:hover{background:var(--brand-l);color:var(--brand-d)}
  .chip-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

  /* ============ 通用板块 ============ */
  .section{padding:54px 0}
  @media (min-width:1024px){.section{padding:80px 0}}
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:20px;flex-wrap:wrap;margin-bottom:28px;
  }
  .section-head h2{font-size:26px;letter-spacing:-.01em}
  @media (min-width:1024px){.section-head h2{font-size:31px}}
  .section-head p{margin-top:10px;color:var(--ink-500);max-width:660px;font-size:15.5px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand);
    margin-bottom:10px;
  }
  .eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
  .text-link{color:var(--brand-d);font-size:14.5px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .18s}
  .text-link:hover{border-color:var(--brand-d)}

  /* ============ 索引布局 ============ */
  .index-layout{display:grid;gap:30px;grid-template-columns:1fr}
  @media (min-width:1024px){.index-layout{grid-template-columns:246px 1fr;gap:38px;align-items:start}}
  .anchor-rail{display:none}
  @media (min-width:1024px){
    .anchor-rail{
      display:block;position:sticky;top:98px;
      background:#fff;border:1px solid var(--line);
      border-radius:var(--radius);padding:22px;
      box-shadow:var(--shadow-1);
    }
  }
  .anchor-rail h3{font-size:15px;color:var(--ink-900);margin-bottom:14px}
  .anchor-rail .rail-group{margin-bottom:18px}
  .anchor-rail .rail-group:last-child{margin-bottom:0}
  .anchor-rail .rail-label{
    font-size:12.5px;color:var(--ink-500);font-weight:700;letter-spacing:.04em;
    margin-bottom:8px;
  }
  .anchor-rail a{
    display:block;font-size:14.5px;color:var(--ink-700);
    padding:7px 10px;border-radius:10px;
    transition:background .18s,color .18s;
  }
  .anchor-rail a:hover{background:var(--brand-l);color:var(--brand-d)}
  .anchor-rail a:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

  .entry-list{display:grid;gap:26px}
  .entry-group{display:grid;gap:18px}
  .entry-group-title{font-size:19px;display:flex;align-items:center;gap:10px}
  .entry-group-title::before{content:"";width:9px;height:9px;border-radius:3px;background:var(--brand)}
  .entry-group-title .count{font-family:var(--num-font);font-size:13px;color:var(--ink-500);font-weight:600}

  .entry{
    display:grid;grid-template-columns:1fr;gap:16px;
    background:#fff;border:1px solid var(--line);
    border-radius:var(--radius);padding:18px;
    box-shadow:var(--shadow-1);
    transition:border-color .2s,box-shadow .2s,transform .2s;
  }
  @media (min-width:760px){
    .entry{grid-template-columns:64px 186px 1fr;align-items:center;gap:22px;padding:20px}
  }
  .entry:hover{border-color:var(--brand);box-shadow:var(--shadow-2);transform:translateY(-3px)}
  .entry-num{
    width:48px;height:48px;border-radius:14px;
    background:var(--brand-l);color:var(--brand);
    display:grid;place-items:center;
    font-family:var(--num-font);font-size:19px;font-weight:700;
    transition:background .2s,color .2s;
  }
  @media (min-width:760px){.entry-num{width:64px;height:64px;font-size:23px}}
  .entry:hover .entry-num{background:var(--brand);color:#fff}
  .entry-media{display:block;border-radius:12px;overflow:hidden}
  .entry-media img{
    width:100%;aspect-ratio:16/9;object-fit:cover;
    border-radius:12px;
    transition:transform .38s ease;
  }
  .entry:hover .entry-media img{transform:scale(1.04)}
  .entry-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--ink-500)}
  .entry-body h3{font-size:18.5px;margin:9px 0 8px}
  @media (min-width:1024px){.entry-body h3{font-size:20px}}
  .entry-body p{color:var(--ink-500);font-size:15.5px;max-width:760px}
  .entry-foot{margin-top:12px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-500)}
  .entry-foot .link{color:var(--brand-d);font-weight:600}
  .entry-foot .link:hover{text-decoration:underline}

  /* ============ 发放节奏 ============ */
  .rhythm-grid{display:grid;gap:18px;grid-template-columns:1fr}
  @media (min-width:768px){.rhythm-grid{grid-template-columns:repeat(3,1fr)}}
  .rhythm-card{
    position:relative;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-1);
    transition:transform .2s,box-shadow .2s,border-color .2s;
  }
  .rhythm-card::before{
    content:"";position:absolute;top:0;left:26px;width:46px;height:3px;
    background:var(--brand);border-radius:0 0 3px 3px;
  }
  .rhythm-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D9D2FB}
  .rhythm-card .num{
    font-family:var(--num-font);font-size:34px;font-weight:700;
    color:var(--brand);opacity:.9;line-height:1;margin-top:8px;
  }
  .rhythm-card h3{font-size:18px;margin:14px 0 8px}
  .rhythm-card p{font-size:15px;color:var(--ink-500)}

  /* ============ 流程 ============ */
  .flow{display:grid;gap:16px;grid-template-columns:1fr}
  @media (min-width:640px){.flow{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.flow{grid-template-columns:repeat(4,1fr)}}
  .flow-step{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:22px;box-shadow:var(--shadow-1);
    transition:transform .2s,box-shadow .2s;
  }
  .flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
  .flow-step .badge{
    width:34px;height:34px;border-radius:10px;
    background:var(--dark);color:var(--accent);
    display:grid;place-items:center;
    font-family:var(--num-font);font-weight:700;font-size:15px;
    margin-bottom:14px;
  }
  .flow-step h3{font-size:16.5px;margin-bottom:8px}
  .flow-step p{font-size:14.5px;color:var(--ink-500)}

  /* ============ 排查对比 ============ */
  .trouble-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .trouble-grid{display:grid;gap:18px;grid-template-columns:1fr}
  @media (min-width:900px){.trouble-grid{grid-template-columns:1fr 1fr}}
  .trouble-card{
    background:var(--bg);border:1px solid var(--line);
    border-radius:var(--radius-lg);padding:26px;
  }
  .trouble-card.purple{border-top:3px solid var(--brand)}
  .trouble-card.teal{border-top:3px solid var(--accent)}
  .trouble-card h3{font-size:19px;margin-bottom:6px}
  .trouble-card > p{font-size:14.5px;color:var(--ink-500);margin-bottom:16px}
  .trouble-list{display:grid;gap:12px}
  .trouble-list li{
    display:flex;gap:12px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);border-radius:12px;
    padding:14px 16px;font-size:14.5px;color:var(--ink-700);
  }
  .trouble-list .step-no{
    flex:0 0 auto;width:24px;height:24px;border-radius:50%;
    background:var(--brand-l);color:var(--brand-d);
    display:grid;place-items:center;
    font-family:var(--num-font);font-size:12.5px;font-weight:700;
    margin-top:3px;
  }
  .trouble-card.teal .step-no{background:rgba(18,214,180,.16);color:#0B8F79}

  /* ============ 表单 ============ */
  .form-panel{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:26px;box-shadow:var(--shadow-1);
  }
  @media (min-width:1024px){.form-panel{padding:34px}}
  .form-grid{display:grid;gap:16px;grid-template-columns:1fr}
  @media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr}}
  .field{display:flex;flex-direction:column;gap:8px}
  .field-full{grid-column:1 / -1}
  .field label{font-size:14px;font-weight:600;color:var(--ink-700)}
  .field input,.field select,.field textarea{
    width:100%;border:1px solid var(--line);border-radius:12px;
    background:#fff;color:var(--ink-900);font-size:15px;
    padding:0 14px;height:48px;
    transition:border-color .18s,box-shadow .18s;
  }
  .field textarea{height:124px;padding:12px 14px;resize:vertical;line-height:1.7}
  .field input::placeholder,.field textarea::placeholder{color:#A9A4BD}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(91,61,245,.18);
  }
  .form-foot{
    grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;
    gap:16px;flex-wrap:wrap;margin-top:6px;
  }
  .form-foot .hint{font-size:13.5px;color:var(--ink-500);max-width:520px}

  /* ============ FAQ ============ */
  .faq-list{display:grid;gap:12px;max-width:900px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;transition:border-color .2s,box-shadow .2s;
  }
  .faq-item:hover{border-color:#D9D2FB}
  .faq-item.is-open{border-color:var(--brand);box-shadow:var(--shadow-1)}
  .faq-q{
    display:flex;align-items:center;gap:14px;width:100%;
    background:none;border:0;text-align:left;
    padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--ink-900);
  }
  .faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
  .faq-q .idx{
    flex:0 0 auto;width:30px;height:30px;border-radius:50%;
    background:var(--brand);color:#fff;
    display:grid;place-items:center;
    font-family:var(--num-font);font-size:13px;
  }
  .faq-q .plus{
    margin-left:auto;color:var(--brand);font-size:22px;line-height:1;
    transition:transform .22s ease;
  }
  .faq-item.is-open .plus{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-a-inner{padding:0 20px 20px 64px;color:var(--ink-500);font-size:15px}

  /* ============ CTA ============ */
  .cta-wrap{padding:0 0 64px}
  @media (min-width:1024px){.cta-wrap{padding:0 0 88px}}
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;
    background:var(--dark);color:#fff;padding:38px 26px;
  }
  @media (min-width:1024px){.cta-band{padding:52px 48px}}
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(115deg,rgba(91,61,245,.92) 0%,rgba(58,34,201,.62) 52%,rgba(23,20,42,.95) 100%);
  }
  .cta-inner{
    position:relative;z-index:2;
    display:flex;align-items:center;justify-content:space-between;
    gap:26px;flex-wrap:wrap;
  }
  .cta-inner h2{font-size:24px;line-height:1.35}
  @media (min-width:1024px){.cta-inner h2{font-size:29px}}
  .cta-inner p{margin-top:10px;color:#C6C1E0;font-size:15.5px;max-width:620px}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap}
  .cta-badge{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;color:#8CF5E3;
    padding:5px 13px;border-radius:999px;
    background:rgba(18,214,180,.16);border:1px solid rgba(18,214,180,.34);
    margin-bottom:14px;
  }

  /* ============ 页脚 ============ */
  .site-footer{background:var(--dark);color:#CFCADD;padding:56px 0 0}
  .footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
  @media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:38px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-size:16px}
  .footer-col h4{
    position:relative;color:#fff;font-size:14px;margin:0 0 16px;padding-bottom:10px;
  }
  .footer-col h4::after{
    content:"";position:absolute;left:0;bottom:0;width:30px;height:3px;
    background:var(--brand);border-radius:2px;
  }
  .footer-col a{display:block;color:#CFCADD;font-size:14.5px;padding:5px 0;transition:color .18s,transform .18s}
  .footer-col a:hover{color:#fff;transform:translateX(3px)}
  .footer-col p{font-size:14px;color:#9C96B4;line-height:1.85}
  .footer-bottom{
    margin-top:42px;padding:20px 0;
    border-top:1px solid rgba(255,255,255,.1);
    display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
    font-size:13px;color:#8F89A8;
  }

  /* ============ 响应式导航 ============ */
  @media (max-width:900px){
    .nav-bar{flex-wrap:wrap;height:auto;padding:10px 0;gap:12px}
    .brand{order:1}
    .nav-actions{order:2;margin-left:auto}
    .nav-tabs{order:3;flex:1 0 100%;justify-content:flex-start;padding-bottom:4px}
    .brand-text{font-size:15px}
  }
  @media (max-width:520px){
    .hero-actions .btn{width:100%}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .form-foot .btn{width:100%}
  }