/* roulang page: index */
:root{
  --c-primary:#5B3DF5;
  --c-primary-deep:#3A2499;
  --c-accent:#14E0B4;
  --c-warm:#FF7A3D;
  --c-bg:#F7F5FF;
  --c-bg-alt:#FFFFFF;
  --c-bg-tint:#EFEBFF;
  --c-ink:#17122B;
  --c-text:#1E1A33;
  --c-text-2:#5B5570;
  --c-text-3:#8C87A3;
  --c-text-inv:#F2F0FF;
  --c-border:#E3DEF5;
  --c-focus:rgba(91,61,245,.35);
  --sh-1:0 1px 2px rgba(23,18,43,.05),0 2px 8px rgba(91,61,245,.06);
  --sh-2:0 4px 14px rgba(23,18,43,.08);
  --sh-3:0 12px 32px rgba(91,61,245,.14);
  --r-btn:12px;
  --r-card:16px;
  --r-lg:22px;
  --gutter:24px;
  --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
h1,h2,h3,h4,h5{margin:0;color:var(--c-text);letter-spacing:-.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,245,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.nav-bar{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:8px;
  background:linear-gradient(140deg,var(--c-primary),#7C63FF);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(91,61,245,.28);
}
.brand-mark svg{width:16px;height:16px;}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.3px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-primary);}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-menu a{
  position:relative;
  display:inline-flex;align-items:center;height:36px;
  padding:0 12px;border-radius:9px;
  font-size:15px;font-weight:500;color:var(--c-text-2);
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--c-primary);transition:width .22s ease;
}
.nav-menu a:hover{color:var(--c-primary);}
.nav-menu a:hover::after{width:16px;}
.nav-menu a.active{color:var(--c-primary);font-weight:650;}
.nav-menu a.active::after{width:16px;}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.command-search{
  position:relative;display:flex;align-items:center;
  width:260px;height:40px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-btn);
  padding:0 10px 0 12px;
  transition:width .28s ease,box-shadow .2s ease,border-color .2s ease;
}
.command-search i{color:var(--c-text-3);font-size:14px;}
.command-search input{
  flex:1 1 auto;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-text);padding:0 8px;min-width:0;
}
.command-search input::placeholder{color:var(--c-text-3);}
.command-search .kbd{
  font-family:var(--font-mono);font-size:11px;color:var(--c-text-3);
  border:1px solid var(--c-border);border-radius:6px;padding:1px 5px;white-space:nowrap;
}
.command-search:focus-within{
  width:320px;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-focus);
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-border);background:#fff;color:var(--c-text-2);
  transition:all .2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:#CFC4FA;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:14.5px;font-weight:650;
  box-shadow:var(--sh-2);cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-main:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-main.sm{height:36px;padding:0 16px;font-size:13.5px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1.5px solid var(--c-primary);background:#fff;color:var(--c-primary);
  font-size:14.5px;font-weight:650;cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(91,61,245,.08);color:var(--c-primary-deep);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:650;color:var(--c-primary);background:none;border:0;padding:0;
}
.btn-link-arrow i{transition:transform .2s ease;}
.btn-link-arrow:hover i{transform:translateX(4px);}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--c-border);background:#fff;color:var(--c-text);
  align-items:center;justify-content:center;
}
.mobile-drawer{
  display:none;background:#fff;border-bottom:1px solid var(--c-border);
  box-shadow:var(--sh-2);padding:16px 0 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .command-search{width:100%;margin-bottom:12px;}
.mobile-drawer .command-search:focus-within{width:100%;}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 0;font-size:15.5px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-border);
}
.mobile-drawer a.drawer-link.active{color:var(--c-primary);font-weight:650;}
.mobile-drawer .btn-main{width:100%;margin-top:16px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section.alt{background:var(--c-bg-alt);}
.section.tint{background:var(--c-bg-tint);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;}
.sec-title{
  position:relative;padding-left:16px;
  font-size:28px;font-weight:700;line-height:1.3;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--c-primary);
}
.sec-sub{font-size:15px;color:var(--c-text-2);margin:8px 0 0;padding-left:16px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:999px;font-size:13px;font-weight:600;line-height:1;
}
.bp-primary{background:rgba(91,61,245,.12);color:var(--c-primary-deep);}
.bp-accent{background:rgba(20,224,180,.16);color:#0B8F73;}
.bp-warm{background:rgba(255,122,61,.14);color:#C4501B;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 88px;
  background:
    radial-gradient(circle at 82% 18%, rgba(91,61,245,.10), transparent 46%),
    var(--c-bg);
}
.hero-dots{
  position:absolute;top:0;right:0;width:48%;height:100%;pointer-events:none;
  background-image:radial-gradient(rgba(91,61,245,.30) 1px, transparent 1px);
  background-size:8px 8px;opacity:.16;
  mask-image:linear-gradient(to left, #000 20%, transparent 100%);
  -webkit-mask-image:linear-gradient(to left, #000 20%, transparent 100%);
}
.hero-inner{position:relative;z-index:2;}
.hero h1{
  font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.5px;
  margin:18px 0 18px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-lead{font-size:17.5px;line-height:1.8;color:var(--c-text-2);max-width:560px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-bottom:30px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--c-text-2);font-weight:500;}
.hero-points li i{color:var(--c-accent);font-size:13px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-visual{position:relative;}
.hero-visual .hero-img{
  width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
}
.hero-visual .hero-mini{
  position:absolute;right:-6px;bottom:-34px;width:42%;
  background:#fff;border-radius:var(--r-card);padding:4px;box-shadow:var(--sh-2);
}
.hero-visual .hero-mini img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;}
.hero-visual .hero-mini span{
  display:block;font-size:12.5px;color:var(--c-text-3);padding:8px 8px 6px;text-align:center;
}
.hero-stats{
  display:flex;gap:36px;flex-wrap:wrap;margin-top:56px;
  padding-top:28px;border-top:1px solid var(--c-border);
}
.hero-stats .st-num{font-family:var(--font-mono);font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.hero-stats .st-label{font-size:13.5px;color:var(--c-text-3);}

/* ============ 合集目录条 ============ */
.dir-list{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:1400px){.dir-list{grid-template-columns:1fr 1fr;}}
.dir-item{
  display:flex;align-items:center;gap:18px;
  min-height:72px;padding:14px 20px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  position:relative;transition:all .22s ease;
}
.dir-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary);opacity:0;transition:opacity .22s ease;
}
.dir-item:hover{transform:translateY(-1px);box-shadow:var(--sh-2);border-color:#D6CCFB;}
.dir-item:hover::before{opacity:1;}
.dir-no{font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--c-primary);flex:0 0 36px;}
.dir-body{flex:1 1 auto;min-width:0;}
.dir-name{font-size:18px;font-weight:650;color:var(--c-text);margin-bottom:2px;}
.dir-desc{font-size:14px;color:var(--c-text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.dir-tail{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.dir-tail i{color:var(--c-text-3);font-size:13px;transition:transform .2s ease;}
.dir-item:hover .dir-tail i{transform:translateX(4px);color:var(--c-primary);}

/* ============ 卡片 ============ */
.card-item{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:16px;position:relative;overflow:hidden;transition:all .25s ease;
}
.card-item::before{
  content:"";position:absolute;left:16px;top:10px;width:0;height:2px;border-radius:2px;background:var(--c-primary);
  transition:width .28s ease;
}
.card-item:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:#D6CCFB;}
.card-item:hover::before{width:28px;}
.card-thumb{border-radius:12px;overflow:hidden;margin-bottom:14px;background:var(--c-bg-tint);}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.card-item:hover .card-thumb img{transform:scale(1.03);}
.card-item h3{
  font-size:18px;font-weight:650;line-height:1.5;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-item h3 a{color:var(--c-text);}
.card-item h3 a:hover{color:var(--c-primary);}
.card-desc{
  font-size:14.5px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--c-border);
  font-size:13.5px;color:var(--c-text-3);
}
.card-foot .meta-left{display:flex;align-items:center;gap:8px;}
.card-foot i{font-size:13px;}
.card-feature{position:relative;}
.card-feature .card-thumb img{aspect-ratio:16/9;}
.card-feature h3{font-size:22px;-webkit-line-clamp:2;}
.card-feature .card-desc{-webkit-line-clamp:3;}

/* ============ 深色资讯带 ============ */
.dark-panel{
  background:var(--c-ink);border-radius:var(--r-lg);
  padding:48px;color:var(--c-text-inv);position:relative;overflow:hidden;
}
.dark-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle, rgba(20,224,180,.17), transparent 68%);
  pointer-events:none;
}
.dark-panel .sec-title{color:var(--c-text-inv);}
.dark-panel .sec-title::before{background:var(--c-accent);}
.dark-panel .sec-sub{color:rgba(242,240,255,.62);}
.cms-list{position:relative;z-index:2;}
.cms-row{border-top:1px solid rgba(255,255,255,.12);}
.cms-row:first-child{border-top:0;}
.cms-row-link{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:18px 12px;border-radius:12px;transition:background .2s ease;
}
.cms-row-link:hover{background:rgba(255,255,255,.06);}
.cms-row-main{min-width:0;flex:1 1 auto;}
.cms-row-title{
  font-size:17px;font-weight:650;color:var(--c-text-inv);margin-bottom:6px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.cms-row-link:hover .cms-row-title{color:var(--c-accent);}
.cms-row-desc{
  font-size:14.5px;color:rgba(242,240,255,.62);margin:0;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.cms-row-meta{display:flex;align-items:center;gap:14px;flex:0 0 auto;font-size:13.5px;color:rgba(242,240,255,.62);}
.cms-row-meta .cms-cat{
  background:rgba(91,61,245,.30);color:#D9D0FF;
  padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:600;
}
.cms-row-meta .cms-date{font-family:var(--font-mono);font-size:12.5px;}
.cms-row-meta .cms-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-weight:600;}
.cms-empty{
  position:relative;z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:48px 24px;text-align:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);
}
.cms-empty i{font-size:28px;color:rgba(242,240,255,.5);}
.cms-empty p{color:rgba(242,240,255,.72);margin:0;font-size:15px;}
.cms-empty .btn-ghost{border-color:rgba(242,240,255,.5);background:transparent;color:var(--c-text-inv);}
.cms-empty .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ============ 相关推荐 ============ */
.mini-card{
  display:flex;gap:14px;align-items:center;height:100%;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:14px;transition:all .22s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6CCFB;}
.mini-card .mini-thumb{flex:0 0 96px;border-radius:12px;overflow:hidden;background:var(--c-bg-tint);}
.mini-card .mini-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.mini-card h3{font-size:16px;font-weight:650;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.mini-card h3 a{color:var(--c-text);}
.mini-card h3 a:hover{color:var(--c-primary);}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--c-bg-tint);border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  border:1px solid #DFD7FB;
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:10px;}
.cta-band p{color:var(--c-text-2);font-size:15.5px;margin:0;max-width:560px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:#fff;border:1px solid var(--c-border) !important;border-radius:14px !important;
  margin-bottom:10px;overflow:hidden;
}
.accordion-button{
  background:#fff;color:var(--c-text);font-size:16.5px;font-weight:650;
  padding:18px 22px;box-shadow:none !important;border:0;
}
.accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--c-primary);background-image:none;
  width:auto;height:auto;transition:transform .25s ease;margin-left:auto;
}
.accordion-button:not(.collapsed){
  background:#FBFAFF;color:var(--c-primary);
  box-shadow:inset 3px 0 0 var(--c-primary) !important;
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg);}
.accordion-button:focus{box-shadow:none !important;border-color:var(--c-border);}
.accordion-body{padding:4px 22px 22px;font-size:15.5px;line-height:1.85;color:var(--c-text-2);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-text-inv);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:var(--c-text-inv);}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(242,240,255,.68);max-width:320px;}
.footer-h{font-size:15px;font-weight:650;color:var(--c-text-inv);margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14.5px;color:rgba(242,240,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.footer-search{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-btn);
  margin-top:14px;
}
.footer-search i{color:rgba(242,240,255,.5);font-size:14px;}
.footer-search input{flex:1 1 auto;background:transparent;border:0;outline:none;color:var(--c-text-inv);font-size:14px;min-width:0;}
.footer-search input::placeholder{color:rgba(242,240,255,.42);}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(242,240,255,.55);
}
.footer-bottom a{color:rgba(242,240,255,.72);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .hero h1{font-size:46px;}
}
@media (max-width:1199.98px){
  .command-search{width:200px;}
  .command-search:focus-within{width:240px;}
  .nav-menu a{padding:0 9px;font-size:14.5px;}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .command-search{display:none;}
  .burger{display:inline-flex;}
  .nav-bar{height:56px;gap:12px;justify-content:space-between;}
  .section{padding:64px 0;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:36px;}
  .hero-visual{margin-top:44px;}
  .hero-visual .hero-img{aspect-ratio:16/9;}
  .hero-visual .hero-mini{width:38%;right:8px;bottom:-24px;}
  .sec-title{font-size:24px;}
  .dark-panel{padding:32px 24px;}
  .cms-row-link{flex-direction:column;align-items:flex-start;gap:10px;}
  .cms-row-meta{gap:10px;flex-wrap:wrap;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn-main,
  .cta-band .cta-actions .btn-ghost{flex:1 1 auto;justify-content:center;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:16px;line-height:1.8;}
  .section{padding:48px 0;}
  .hero{padding:36px 0 48px;}
  .hero h1{font-size:32px;}
  .hero-lead{font-size:16px;}
  .hero-stats{gap:24px;margin-top:40px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:24px;}
  .sec-title{font-size:22px;}
  .dir-item{padding:12px 16px;gap:12px;}
  .dir-name{font-size:17px;}
  .dark-panel{padding:26px 18px;border-radius:18px;}
  .card-feature h3{font-size:19px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero h1{font-size:28px;letter-spacing:-.3px;}
  .hero-actions .btn-main,
  .hero-actions .btn-ghost{width:100%;justify-content:center;}
  .hero-visual .hero-mini{display:none;}
  .dir-desc{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .mini-card .mini-thumb{flex:0 0 76px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-deep:#3A2499;
  --c-primary-soft:rgba(91,61,245,.10);
  --c-accent:#14E0B4;
  --c-accent-soft:rgba(20,224,180,.14);
  --c-warm:#FF7A3D;
  --c-warm-soft:rgba(255,122,61,.14);
  --c-bg:#F7F5FF;
  --c-bg-alt:#FFFFFF;
  --c-bg-tint:#EFEBFF;
  --c-ink:#17122B;
  --c-text:#1E1A33;
  --c-text-2:#5B5570;
  --c-text-3:#8C87A3;
  --c-text-inv:#F2F0FF;
  --c-border:#E3DEF5;
  --c-focus:rgba(91,61,245,.35);
  --sh-1:0 1px 2px rgba(23,18,43,.05),0 2px 8px rgba(91,61,245,.06);
  --sh-2:0 4px 14px rgba(23,18,43,.08);
  --sh-3:0 12px 32px rgba(91,61,245,.14);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --gutter:24px;
  --sp-section:88px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button,input{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.2px;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sp-section) 0;}
.section-tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-title{display:flex;align-items:center;gap:12px;font-size:28px;font-weight:700;}
.sec-title::before{content:"";width:4px;height:26px;border-radius:3px;background:var(--c-primary);display:inline-block;}
.sec-desc{color:var(--c-text-3);font-size:14px;margin:8px 0 0 16px;}
.text-link{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.text-link i{transition:transform .2s ease;font-size:12px;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 顶部命令栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,245,255,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 4px 12px rgba(91,61,245,.28);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.2px;}
.brand:hover .brand-text{color:var(--c-primary);}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:12px;}
.nav-menu a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);padding:6px 0;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:-4px;transform:translateX(-50%) scaleX(0);
  width:18px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--c-primary);}
.nav-menu a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-menu a.active{color:var(--c-primary);font-weight:650;}
.nav-menu a.active::after{transform:translateX(-50%) scaleX(1);}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 12px;
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-sm);
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--c-text-3);font-size:14px;}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-text);
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-focus);width:300px;}
.kbd-hint{
  font-size:11px;font-weight:600;color:var(--c-text-3);
  border:1px solid var(--c-border);border-radius:6px;padding:1px 5px;line-height:1.5;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-border);
  background:var(--c-bg-alt);color:var(--c-text-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease;cursor:pointer;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:650;border:1.5px solid transparent;
  cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);}
.btn-ghost{background:var(--c-bg-alt);border-color:var(--c-border);color:var(--c-text-2);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.header-cta{height:40px;padding:0 18px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--c-border);background:var(--c-bg-alt);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--c-text-2);transition:all .2s ease;}
.nav-drawer{
  display:none;border-top:1px solid var(--c-border);background:var(--c-bg-alt);
  padding:16px 24px 22px;
}
.nav-drawer.open{display:block;}
.nav-drawer .drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border:1px solid var(--c-border);border-radius:var(--r-sm);background:var(--c-bg);margin-bottom:12px;
}
.nav-drawer .drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14.5px;}
.nav-drawer a.drawer-link{
  display:flex;align-items:center;height:48px;font-size:15.5px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-border);
}
.nav-drawer a.drawer-link.active{color:var(--c-primary);font-weight:650;}
.nav-drawer .btn{width:100%;margin-top:16px;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:var(--c-bg-tint);
  border-bottom:1px solid var(--c-border);
  padding:56px 0 48px;
  position:relative;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;right:-60px;top:-40px;width:420px;height:420px;
  background-image:radial-gradient(rgba(91,61,245,.14) 1px,transparent 1px);
  background-size:8px 8px;opacity:.9;pointer-events:none;
}
.cat-hero-inner{position:relative;display:flex;align-items:center;gap:48px;}
.cat-hero-text{flex:1 1 60%;min-width:0;}
.breadcrumb-bar{
  display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);margin-bottom:16px;
}
.breadcrumb-bar a{color:var(--c-text-2);font-weight:500;}
.breadcrumb-bar a:hover{color:var(--c-primary);}
.breadcrumb-bar i{font-size:9px;color:var(--c-text-3);}
.breadcrumb-bar .current{color:var(--c-text-3);}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12.5px;font-weight:650;margin-bottom:16px;
}
.cat-hero h1{font-size:40px;font-weight:800;color:var(--c-text);margin-bottom:14px;letter-spacing:-.6px;}
.cat-hero h1 em{font-style:normal;color:var(--c-primary);}
.cat-hero-sub{font-size:16.5px;color:var(--c-text-2);max-width:560px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;}
.hero-point{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);font-weight:500;}
.hero-point i{color:var(--c-primary);font-size:14px;}
.cat-hero-figure{
  flex:0 0 38%;max-width:420px;border-radius:18px;overflow:hidden;
  box-shadow:var(--sh-3);border:4px solid #fff;
}
.cat-hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- 说明条 ---------- */
.intro-bar{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:24px 28px;display:flex;gap:18px;align-items:flex-start;box-shadow:var(--sh-1);
}
.intro-bar::before{
  content:"";flex:0 0 4px;align-self:stretch;border-radius:3px;background:var(--c-primary);
}
.intro-bar p{margin:0;font-size:15.5px;color:var(--c-text-2);line-height:1.9;}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1;
}
.tag-primary{background:var(--c-primary-soft);color:var(--c-primary);}
.tag-accent{background:var(--c-accent-soft);color:#0B8F73;}
.tag-warm{background:var(--c-warm-soft);color:#C8521E;}

/* ---------- 宽卡 ---------- */
.wide-card{
  display:flex;gap:24px;align-items:stretch;
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:20px;margin-bottom:20px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.wide-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(91,61,245,.35);}
.wide-card-fig{flex:0 0 32%;border-radius:var(--r-sm);overflow:hidden;background:var(--c-bg-tint);}
.wide-card-fig img{width:100%;height:100%;min-height:190px;object-fit:cover;transition:transform .35s ease;}
.wide-card:hover .wide-card-fig img{transform:scale(1.03);}
.wide-card-body{flex:1;display:flex;flex-direction:column;justify-content:center;min-width:0;}
.wide-card-body h2{font-size:20px;font-weight:700;margin:12px 0 10px;}
.wide-card-body h2 a{color:var(--c-text);}
.wide-card-body h2 a:hover{color:var(--c-primary);}
.wide-card-body .excerpt{
  font-size:14.5px;color:var(--c-text-2);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:var(--c-text-3);font-weight:500;}
.meta-row .mono{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12.5px;}
.meta-row i{font-size:12.5px;}

/* ---------- 标准卡 ---------- */
.card-item{
  height:100%;background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:16px;display:flex;flex-direction:column;position:relative;overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-item::after{
  content:"";position:absolute;left:16px;top:0;width:28px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateY(-2px) scaleX(0);transform-origin:left;
  transition:transform .28s ease;
}
.card-item:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(91,61,245,.3);}
.card-item:hover::after{transform:translateY(0) scaleX(1);}
.card-fig{border-radius:var(--r-sm);overflow:hidden;background:var(--c-bg-tint);margin-bottom:14px;}
.card-fig img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.card-item:hover .card-fig img{transform:scale(1.03);}
.card-item h3{font-size:17.5px;font-weight:650;margin:10px 0 8px;line-height:1.4;}
.card-item h3 a{
  color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-item h3 a:hover{color:var(--c-primary);}
.card-item .desc{
  font-size:14px;color:var(--c-text-2);line-height:1.75;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-item .meta-row{margin-top:auto;}

/* ---------- 提示条 ---------- */
.tip-strip{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:12px 22px;margin:12px 0 32px;
  font-size:14px;font-weight:600;color:var(--c-primary-deep);
}
.tip-strip i{color:var(--c-primary);}
.tip-strip span.dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:44px;}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:44px;padding:0 16px;border-radius:var(--r-pill);
  border:1.5px solid var(--c-border);background:var(--c-bg-alt);
  font-size:14.5px;font-weight:600;color:var(--c-text-2);
  transition:all .2s ease;
}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.pager .current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.pager .disabled{opacity:.45;pointer-events:none;}
.pager .pager-text{display:none;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:14px;
  margin-bottom:10px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(91,61,245,.4);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:18px 22px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:650;color:var(--c-text);line-height:1.5;
}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;border-radius:7px;background:var(--c-primary-soft);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-primary);
  font-size:11px;transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--c-primary);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;
  padding:0 22px;
}
.faq-item.open .faq-a{max-height:340px;padding:0 22px 20px;}
.faq-a p{margin:0;font-size:15px;color:var(--c-text-2);line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-bg-tint);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-30px;bottom:-40px;width:260px;height:260px;
  background-image:radial-gradient(rgba(91,61,245,.16) 1px,transparent 1px);
  background-size:8px 8px;pointer-events:none;
}
.cta-band h2{font-size:26px;font-weight:800;margin-bottom:8px;position:relative;}
.cta-band p{margin:0;font-size:15px;color:var(--c-text-2);max-width:560px;position:relative;}
.cta-actions{display:flex;gap:12px;flex-shrink:0;position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-text-inv);margin-top:88px;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;color:rgba(242,240,255,.68);line-height:1.85;max-width:300px;margin:0;}
.footer-h{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:rgba(242,240,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.footer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;margin-top:14px;
  border:1px solid rgba(255,255,255,.18);border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
}
.footer-search i{color:rgba(242,240,255,.6);font-size:14px;}
.footer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;color:#fff;font-size:14px;}
.footer-search input::placeholder{color:rgba(242,240,255,.5);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;font-size:13.5px;color:rgba(242,240,255,.58);
}
.footer-bottom a{color:rgba(242,240,255,.78);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-search{width:200px;}
  .nav-menu{gap:20px;}
  .cat-hero h1{font-size:34px;}
}
@media (max-width:991px){
  :root{--sp-section:64px;--gutter:20px;}
  .nav-menu{display:none;}
  .nav-search{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .cat-hero{padding:40px 0 36px;}
  .cat-hero-figure{display:none;}
  .cat-hero h1{font-size:30px;}
  .sec-title{font-size:23px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--sp-section:48px;}
  body{font-size:16px;}
  .container{padding:0 16px;}
  .wide-card{flex-direction:column;gap:16px;padding:16px;}
  .wide-card-fig{flex:none;}
  .wide-card-fig img{min-height:0;aspect-ratio:16/10;}
  .wide-card-body h2{font-size:19px;}
  .cat-hero h1{font-size:26px;}
  .cat-hero-sub{font-size:15.5px;}
  .hero-points{gap:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-desc{max-width:none;}
  .faq-q{font-size:15.5px;padding:16px 18px;}
  .faq-a{padding:0 18px;}
  .faq-item.open .faq-a{padding:0 18px 18px;}
}
@media (max-width:575px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .pager a,.pager span{min-width:0;height:42px;padding:0 14px;font-size:14px;}
  .pager .page-num{display:none;}
  .pager .pager-text{display:inline;}
  .cta-actions{flex-direction:column;width:100%;}
  .cta-actions .btn{width:100%;}
  .intro-bar{flex-direction:column;gap:12px;padding:20px;}
  .intro-bar::before{width:38px;height:4px;flex:none;}
  .tip-strip{border-radius:16px;padding:12px 16px;}
}

/* roulang page: article */
:root{
  --c-primary:#5B3DF5;
  --c-primary-deep:#3A2499;
  --c-accent:#14E0B4;
  --c-warm:#FF7A3D;
  --c-bg:#F7F5FF;
  --c-bg-alt:#FFFFFF;
  --c-bg-tint:#EFEBFF;
  --c-ink:#17122B;
  --c-text:#1E1A33;
  --c-text-2:#5B5570;
  --c-text-3:#8C87A3;
  --c-text-inv:#F2F0FF;
  --c-border:#E3DEF5;
  --c-focus:rgba(91,61,245,.35);
  --sh-1:0 1px 2px rgba(23,18,43,.05), 0 2px 8px rgba(91,61,245,.06);
  --sh-2:0 4px 14px rgba(23,18,43,.08);
  --sh-3:0 12px 32px rgba(91,61,245,.14);
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --gutter:24px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px;border-radius:6px;}
.site-container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.mono{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,255,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease, background .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(247,245,255,.96);}
.nav-bar{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:var(--r-xs);background:var(--c-primary);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);
}
.brand-mark svg{width:16px;height:16px;}
.brand-text{font-size:17px;font-weight:750;color:var(--c-text);letter-spacing:-.2px;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--c-text-2);border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateX(-50%);transition:width .22s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:rgba(91,61,245,.06);}
.nav-menu a:hover::after{width:18px;}
.nav-menu a.active{color:var(--c-primary);}
.nav-menu a.active::after{width:18px;}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:260px;height:42px;padding:0 12px;border:1px solid var(--c-border);
  background:var(--c-bg-alt);border-radius:var(--r-sm);
  transition:width .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.nav-search:focus-within{width:320px;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-focus);}
.nav-search i{color:var(--c-text-3);font-size:14px;}
.nav-search input{
  flex:1;border:0;outline:none;background:transparent;font-size:14.5px;color:var(--c-text);
}
.nav-search input::placeholder{color:var(--c-text-3);}
.kbd-hint{
  font-size:11.5px;font-weight:600;color:var(--c-text-3);border:1px solid var(--c-border);
  border-radius:6px;padding:1px 6px;background:var(--c-bg-tint);
}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-border);
  background:var(--c-bg-alt);color:var(--c-text-2);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:650;cursor:pointer;border:1.5px solid transparent;
  transition:all .22s ease;white-space:nowrap;
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.btn-main:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:var(--c-bg-alt);color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:rgba(91,61,245,.08);color:var(--c-primary-deep);transform:translateY(-1px);}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;}
.burger{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-border);
  background:var(--c-bg-alt);color:var(--c-text);align-items:center;justify-content:center;cursor:pointer;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--c-border);background:var(--c-bg-alt);
  padding:16px 24px 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-search{width:100%;margin-bottom:12px;}
.mobile-drawer .nav-search:focus-within{width:100%;}
.mobile-drawer a.m-link{
  display:flex;align-items:center;height:48px;font-size:15.5px;font-weight:600;
  color:var(--c-text-2);border-bottom:1px solid var(--c-border);
}
.mobile-drawer a.m-link.active{color:var(--c-primary);}
.mobile-drawer .btn-main{width:100%;margin-top:16px;}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0;}
.section-tight{padding:32px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.sec-title{position:relative;padding-left:14px;font-size:26px;font-weight:750;}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary);
}
.sec-sub{font-size:14.5px;color:var(--c-text-3);margin-top:6px;}
.text-link{font-size:14.5px;font-weight:650;display:inline-flex;align-items:center;gap:6px;}
.text-link i{transition:transform .22s ease;}
.text-link:hover i{transform:translateX(4px);}

.badge-pill{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1;
}
.badge-primary{background:rgba(91,61,245,.12);color:var(--c-primary);}
.badge-accent{background:rgba(20,224,180,.16);color:#0A8F72;}
.badge-warm{background:rgba(255,122,61,.14);color:#C74F16;}
.badge-muted{background:var(--c-bg-tint);color:var(--c-text-2);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);}
.crumb a{color:var(--c-text-2);font-weight:600;}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-text-3);font-size:11px;}
.crumb .current{color:var(--c-text-3);}

/* ---------- 文章头 ---------- */
.article-head{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:20px;
  padding:32px;box-shadow:var(--sh-1);margin-top:18px;
}
.article-h1{font-size:38px;font-weight:800;line-height:1.25;letter-spacing:-.5px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:500;color:var(--c-text-3);}
.article-meta .meta-item i{font-size:13px;color:var(--c-text-3);}
.article-divider{height:1px;background:var(--c-border);margin:22px 0 18px;}
.article-lead{font-size:15.5px;color:var(--c-text-2);line-height:1.85;}
.article-cover{margin-top:26px;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-2);}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover;}

/* ---------- 正文 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start;}
.reader{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:20px;
  padding:36px;box-shadow:var(--sh-1);
}
.article-body{font-size:17.5px;line-height:1.9;color:var(--c-text);}
.article-body p{margin:0 0 1.1em;}
.article-body h2{font-size:26px;font-weight:750;margin:40px 0 16px;position:relative;padding-left:14px;line-height:1.4;}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--c-primary);}
.article-body h3{font-size:20px;font-weight:700;margin:28px 0 12px;line-height:1.5;}
.article-body h4{font-size:17.5px;font-weight:700;margin:22px 0 10px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:7px 0;}
.article-body img{border-radius:14px;margin:18px 0;box-shadow:var(--sh-1);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13.5px;color:var(--c-text-3);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-bg-tint);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15.5px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--c-border);padding:11px 14px;text-align:left;}
.article-body th{background:rgba(91,61,245,.08);font-weight:700;color:var(--c-primary-deep);}
.article-body tr:nth-child(even) td{background:#FBFAFF;}
.article-body pre{
  background:var(--c-ink);color:#EDE9FF;border-radius:12px;padding:18px 20px;
  overflow-x:auto;font-size:14.5px;line-height:1.75;margin:22px 0;
  font-family:"JetBrains Mono",ui-monospace,Menlo,monospace;
}
.article-body code{
  font-family:"JetBrains Mono",ui-monospace,Menlo,monospace;font-size:14.5px;
  background:var(--c-bg-tint);padding:2px 6px;border-radius:6px;color:var(--c-primary-deep);
}
.article-body pre code{background:transparent;padding:0;color:inherit;}

/* ---------- 空态 ---------- */
.empty-card{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:20px;
  padding:64px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-icon{
  width:56px;height:56px;border-radius:16px;background:var(--c-bg-tint);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:22px;
}
.empty-card h2{font-size:22px;font-weight:750;margin-bottom:10px;}
.empty-card p{color:var(--c-text-2);font-size:15px;margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px;}
.side-card{background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);}
.side-title{font-size:16px;font-weight:750;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-title i{color:var(--c-primary);font-size:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:14.5px;color:var(--c-text-2);padding:7px 10px;border-left:2px solid transparent;
  border-radius:0 8px 8px 0;line-height:1.6;transition:all .2s ease;
}
.toc-list a:hover,.toc-list a.active{
  color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(91,61,245,.06);
}
.mini-list{display:flex;flex-direction:column;gap:14px;}
.mini-item{display:flex;gap:12px;align-items:flex-start;}
.mini-item img{width:64px;height:48px;border-radius:10px;object-fit:cover;flex:0 0 auto;}
.mini-item .mini-t{font-size:14.5px;font-weight:650;color:var(--c-text);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-item .mini-m{font-size:12.5px;color:var(--c-text-3);margin-top:4px;}
.mini-item:hover .mini-t{color:var(--c-primary);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--c-bg-tint);color:var(--c-text-2);font-size:13px;font-weight:600;transition:all .2s ease;
}
.tag-cloud a:hover{background:var(--c-primary);color:#fff;}
.side-actions{display:flex;flex-direction:column;gap:10px;}
.side-actions .btn-main,.side-actions .btn-ghost{width:100%;}

/* ---------- 底部导航 ---------- */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:26px;}
.post-nav-card{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:20px 22px;transition:all .22s ease;display:block;
}
.post-nav-card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-2);}
.post-nav-card .pn-label{font-size:12.5px;font-weight:600;color:var(--c-text-3);letter-spacing:.4px;}
.post-nav-card .pn-title{font-size:16px;font-weight:700;color:var(--c-text);margin-top:8px;line-height:1.55;}
.post-nav-card:hover .pn-title{color:var(--c-primary);}
.back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 相关推荐 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D6CDF7;}
.card-thumb{position:relative;border-radius:12px;overflow:hidden;margin:12px 12px 0;}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17.5px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-desc{font-size:14.5px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-bg-tint);border-radius:var(--r-lg);padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;border:1px solid var(--c-border);
}
.cta-band h2{font-size:26px;font-weight:750;line-height:1.4;}
.cta-band p{font-size:15px;color:var(--c-text-2);margin-top:10px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-item{background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:14px;overflow:hidden;transition:box-shadow .2s ease;}
.faq-item.open{border-left:3px solid var(--c-primary);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:650;color:var(--c-text);
}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-q i{transition:transform .25s ease;color:var(--c-primary);font-size:14px;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;color:var(--c-text-2);line-height:1.85;}
.faq-item.open .faq-a{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-text-inv);margin-top:24px;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:750;}
.footer-desc{font-size:14.5px;color:rgba(242,240,255,.66);line-height:1.8;max-width:300px;}
.footer-h{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14.5px;color:rgba(242,240,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.footer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;margin-top:10px;
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-sm);background:rgba(255,255,255,.06);
}
.footer-search i{color:rgba(242,240,255,.6);font-size:14px;}
.footer-search input{flex:1;background:transparent;border:0;outline:none;color:#fff;font-size:14.5px;}
.footer-search input::placeholder{color:rgba(242,240,255,.5);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(242,240,255,.6);
}
.footer-bottom a{color:rgba(242,240,255,.8);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-search{width:210px;}
  .nav-search:focus-within{width:250px;}
  .article-h1{font-size:32px;}
}
@media (max-width:991px){
  .nav-menu{display:none;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .burger{display:flex;}
  .layout{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:48px 0;}
  .reader{padding:26px;}
  .article-head{padding:24px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .site-container{padding-left:16px;padding-right:16px;}
  .nav-bar{height:56px;}
  .article-h1{font-size:26px;line-height:1.35;}
  .sec-title{font-size:22px;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .card-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .reader{padding:20px;border-radius:16px;}
  .article-head{padding:20px;border-radius:16px;}
  .back-row .btn-main,.back-row .btn-ghost{width:100%;}
}
@media (max-width:520px){
  .article-meta{gap:10px;}
  .empty-card{padding:44px 20px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-deep:#3A2499;
  --c-accent:#14E0B4;
  --c-accent-deep:#0B9C7C;
  --c-warm:#FF7A3D;
  --c-bg:#F7F5FF;
  --c-bg-alt:#FFFFFF;
  --c-bg-tint:#EFEBFF;
  --c-ink:#17122B;
  --c-text:#1E1A33;
  --c-text-2:#5B5570;
  --c-text-3:#8C87A3;
  --c-text-inv:#F2F0FF;
  --c-border:#E3DEF5;
  --c-focus:rgba(91,61,245,.35);
  --sh-1:0 1px 2px rgba(23,18,43,.05),0 2px 8px rgba(91,61,245,.06);
  --sh-2:0 4px 14px rgba(23,18,43,.08);
  --sh-3:0 12px 32px rgba(91,61,245,.14);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --gutter:24px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.3px;}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--c-focus);border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,255,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:22px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:26px;height:26px;border-radius:8px;background:var(--c-primary);display:grid;place-items:center;box-shadow:var(--sh-1);}
.brand-mark svg{width:16px;height:16px;}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);}
.nav-menu{display:flex;align-items:center;gap:24px;margin-left:6px;}
.nav-menu a{position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);padding:6px 0;}
.nav-menu a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
.nav-menu a:hover{color:var(--c-primary);}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--c-primary);font-weight:600;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.command-search{
  display:flex;align-items:center;gap:8px;width:248px;height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-sm);
  transition:width .3s ease,border-color .2s ease,box-shadow .2s ease;
}
.command-search:focus-within{width:308px;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-focus);}
.command-search i{color:var(--c-text-3);font-size:14px;}
.command-search input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:14px;color:var(--c-text);}
.command-search input::placeholder{color:var(--c-text-3);}
.command-search .kbd{font-size:11px;color:var(--c-text-3);border:1px solid var(--c-border);border-radius:6px;padding:1px 5px;font-family:ui-monospace,"JetBrains Mono",monospace;}
.icon-btn{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-border);background:#fff;color:var(--c-text-2);display:grid;place-items:center;cursor:pointer;transition:.2s ease;}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);box-shadow:var(--sh-1);}
.menu-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-border);background:#fff;color:var(--c-text);align-items:center;justify-content:center;cursor:pointer;}
.mobile-drawer{display:none;border-top:1px solid var(--c-border);background:#fff;padding:14px 24px 18px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;background:var(--c-bg-tint);border-radius:var(--r-sm);margin-bottom:10px;}
.mobile-drawer .drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px;}
.mobile-drawer a{display:flex;align-items:center;height:48px;border-bottom:1px solid var(--c-border);font-size:15.5px;color:var(--c-text-2);}
.mobile-drawer a.active{color:var(--c-primary);font-weight:600;}
.mobile-drawer a:last-child{border-bottom:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:rgba(91,61,245,.08);color:var(--c-primary-deep);}
.btn-ghost{background:transparent;color:var(--c-text-2);border-color:var(--c-border);}
.btn-ghost:hover{color:var(--c-primary);border-color:var(--c-primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;}
.link-more i{transition:transform .25s ease;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:13px;font-weight:600;line-height:1;}
.chip-primary{background:rgba(91,61,245,.10);color:var(--c-primary);}
.chip-accent{background:rgba(20,224,180,.18);color:var(--c-accent-deep);}
.chip-warm{background:rgba(255,122,61,.15);color:#C94E17;}
.chip-ghost{background:#fff;border:1px solid var(--c-border);color:var(--c-text-2);}

/* ---------- 分类 Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-bg-tint);border-bottom:1px solid var(--c-border);padding:52px 0 58px;}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(91,61,245,.14) 1px,transparent 1px);
  background-size:16px 16px;opacity:.7;
  -webkit-mask-image:linear-gradient(100deg,transparent 30%,#000 100%);
  mask-image:linear-gradient(100deg,transparent 30%,#000 100%);
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);margin-bottom:16px;}
.crumbs a{color:var(--c-text-3);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs span.sep{color:var(--c-text-3);opacity:.7;}
.crumbs span.current{color:var(--c-text-3);}
.hero-badge{margin-bottom:16px;}
.page-hero h1{font-size:clamp(28px,3.6vw,40px);font-weight:800;line-height:1.25;margin-bottom:14px;}
.hero-sub{font-size:16.5px;color:var(--c-text-2);max-width:600px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--c-text-2);font-weight:500;}
.hero-points i{color:var(--c-primary);font-size:14px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-figure{border-radius:18px;overflow:hidden;box-shadow:var(--sh-3);border:4px solid #fff;background:#fff;}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--c-bg-alt);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px;}
.sec-title{position:relative;padding-left:16px;font-size:28px;font-weight:700;line-height:1.35;}
.sec-title::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;background:var(--c-primary);}
.sec-sub{margin-top:8px;font-size:15px;color:var(--c-text-2);}

/* ---------- 说明条 ---------- */
.note-bar{position:relative;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);padding:22px 24px 22px 28px;box-shadow:var(--sh-1);}
.note-bar::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:4px;background:var(--c-primary);}
.note-bar p{font-size:15.5px;color:var(--c-text-2);}
.note-bar p + p{margin-top:8px;}

/* ---------- 数据条 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.stat-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);}
.stat-num{font-family:ui-monospace,"JetBrains Mono",monospace;font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat-label{margin-top:6px;font-size:14px;color:var(--c-text-2);}
.stat-tag{margin-top:10px;}

/* ---------- 应用卡片 ---------- */
.app-card{position:relative;display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);overflow:hidden;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;}
.app-card::before{content:"";position:absolute;left:20px;top:0;width:28px;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .3s ease;z-index:2;}
.app-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(91,61,245,.32);}
.app-card:hover::before{transform:scaleX(1);}
.app-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-tint);}
.app-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.app-card:hover .thumb img{transform:scale(1.03);}
.app-card .body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1;}
.app-card h3{font-size:18px;font-weight:650;line-height:1.5;}
.app-card .desc{font-size:14.5px;line-height:1.75;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--c-text-3);}
.card-meta .t{font-family:ui-monospace,"JetBrains Mono",monospace;}

/* ---------- 提示条 ---------- */
.tip-bar{display:flex;align-items:center;gap:12px;background:var(--c-bg-tint);border-radius:999px;padding:12px 22px;font-size:14.5px;color:var(--c-primary-deep);font-weight:500;}
.tip-bar i{color:var(--c-accent-deep);}

/* ---------- 用途胶囊组 ---------- */
.pill-group{display:flex;flex-wrap:wrap;gap:12px;}
.pill{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;background:#fff;border:1px solid var(--c-border);font-size:14.5px;font-weight:600;color:var(--c-text-2);transition:.22s ease;}
.pill i{color:var(--c-primary);font-size:14px;}
.pill:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1);transform:translateY(-1px);}

/* ---------- 步骤 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);padding:26px 22px;box-shadow:var(--sh-1);transition:box-shadow .3s ease,transform .3s ease;}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-no{font-family:ui-monospace,"JetBrains Mono",monospace;font-size:20px;font-weight:700;color:var(--c-primary);}
.step-card h3{margin-top:12px;font-size:18px;font-weight:650;}
.step-card p{margin-top:8px;font-size:14.5px;color:var(--c-text-2);line-height:1.75;}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;}
.pager a,.pager span.page-num{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 14px;border-radius:999px;border:1.5px solid var(--c-border);background:#fff;font-size:14.5px;font-weight:600;color:var(--c-text-2);transition:.22s ease;}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1);}
.pager .current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.pager .disabled{opacity:.5;pointer-events:none;}
.pager-text{display:none;font-size:14.5px;color:var(--c-text-3);}

/* ---------- FAQ ---------- */
.faq .accordion-item{border:1px solid var(--c-border);border-radius:14px;background:#fff;margin-bottom:10px;overflow:hidden;box-shadow:var(--sh-1);}
.faq .accordion-button{background:#fff;color:var(--c-text);font-size:16.5px;font-weight:600;padding:18px 20px;box-shadow:none;border:0;}
.faq .accordion-button:not(.collapsed){color:var(--c-primary);background:#fff;}
.faq .accordion-button:focus{box-shadow:0 0 0 3px var(--c-focus);}
.faq .accordion-button::after{
  content:"";background-image:none;width:12px;height:12px;flex:0 0 auto;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(45deg);transition:transform .25s ease;margin-left:auto;margin-right:6px;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq .accordion-body{padding:0 20px 20px;font-size:15.5px;color:var(--c-text-2);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-bg-tint);border-radius:var(--r-lg);padding:44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;border:1px solid var(--c-border);}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;}
.cta-band p{margin-top:10px;font-size:15.5px;color:var(--c-text-2);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-text-inv);padding:64px 0 28px;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:26px;height:26px;border-radius:8px;background:var(--c-primary);display:grid;place-items:center;}
.footer-brand .brand-mark svg{width:16px;height:16px;}
.footer-brand .brand-text{font-size:17px;font-weight:700;color:#fff;}
.footer-desc{font-size:14.5px;line-height:1.8;color:rgba(242,240,255,.72);max-width:300px;}
.footer-h{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14.5px;color:rgba(242,240,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.footer-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-sm);margin-top:6px;transition:border-color .2s ease,box-shadow .2s ease;}
.footer-search:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(20,224,180,.22);}
.footer-search i{color:rgba(242,240,255,.6);font-size:14px;}
.footer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14.5px;color:#fff;}
.footer-search input::placeholder{color:rgba(242,240,255,.45);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13.5px;color:rgba(242,240,255,.6);}
.footer-bottom a{color:rgba(242,240,255,.72);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .command-search{width:210px;}
  .command-search:focus-within{width:240px;}
}
@media (max-width:991px){
  .nav-menu{display:none;}
  .command-search{display:none;}
  .menu-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .section{padding:64px 0;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .step-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-hero{padding:40px 0 46px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .hero-figure{display:none;}
  .section{padding:48px 0;}
  .sec-title{font-size:22px;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .stat-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .brand-text{font-size:15.5px;}
  .page-hero h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .tip-bar{border-radius:14px;align-items:flex-start;}
  .pager a,.pager span.page-num{min-width:40px;height:40px;padding:0 12px;}
  .pager .page-num:not(.current){display:none;}
  .pager-text{display:inline-block;}
}

/* roulang page: category3 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-deep:#3A2499;
  --c-accent:#14E0B4;
  --c-warm:#FF7A3D;
  --c-bg:#F7F5FF;
  --c-bg-alt:#FFFFFF;
  --c-bg-tint:#EFEBFF;
  --c-ink:#17122B;
  --c-text:#1E1A33;
  --c-text-2:#5B5570;
  --c-text-3:#8C87A3;
  --c-text-inv:#F2F0FF;
  --c-border:#E3DEF5;
  --c-focus:rgba(91,61,245,.35);
  --r-btn:12px;
  --r-card:16px;
  --r-lg:22px;
  --sh-1:0 1px 2px rgba(23,18,43,.05),0 2px 8px rgba(91,61,245,.06);
  --sh-2:0 4px 14px rgba(23,18,43,.08);
  --sh-3:0 12px 32px rgba(91,61,245,.14);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --gutter:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--c-text);letter-spacing:-.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-title{position:relative;padding-left:16px;font-size:28px;line-height:1.35;margin-bottom:12px;}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--c-primary);}
.section-sub{color:var(--c-text-2);font-size:15.5px;max-width:760px;margin-bottom:32px;}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--c-text-3);text-transform:uppercase;}

/* ============ 按钮 ============ */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:650;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary-c{background:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.btn-primary-c:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary-c:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline-c{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline-c:hover{background:rgba(91,61,245,.08);color:var(--c-primary-deep);border-color:var(--c-primary-deep);}
.btn-ghost-c{background:transparent;color:var(--c-text-2);border-color:var(--c-border);}
.btn-ghost-c:hover{color:var(--c-primary);border-color:var(--c-primary);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:650;color:var(--c-primary);}
.btn-text i{transition:transform .25s ease;}
.btn-text:hover i{transform:translateX(4px);}
.btn-c:focus-visible,.btn-text:focus-visible,a:focus-visible,button:focus-visible{
  outline:none;box-shadow:0 0 0 2px #fff,0 0 0 4px var(--c-focus);border-radius:10px;
}
.btn-sm-c{height:36px;padding:0 16px;font-size:13.5px;}

/* ============ 徽章 / 胶囊 ============ */
.badge-c{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:13px;font-weight:600;line-height:1;}
.badge-cat{background:rgba(91,61,245,.12);color:var(--c-primary-deep);}
.badge-new{background:rgba(20,224,180,.16);color:#0B8F71;}
.badge-hot{background:rgba(255,122,61,.14);color:#C24E15;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,245,255,.86);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-text);flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 4px 12px rgba(91,61,245,.32);
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:14.5px;font-weight:600;color:var(--c-text-2);border-radius:10px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:rgba(91,61,245,.06);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--c-primary);}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-search{
  position:relative;display:flex;align-items:center;width:260px;height:40px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-btn);
  transition:width .28s ease,box-shadow .2s ease,border-color .2s ease;
}
.nav-search i{position:absolute;left:12px;font-size:13px;color:var(--c-text-3);}
.nav-search input{
  width:100%;height:100%;border:0;background:transparent;outline:none;
  padding:0 46px 0 34px;font-size:13.5px;color:var(--c-text);font-family:inherit;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search .kbd{
  position:absolute;right:10px;font-family:var(--mono);font-size:11px;color:var(--c-text-3);
  border:1px solid var(--c-border);border-radius:6px;padding:1px 6px;background:var(--c-bg-tint);
}
.nav-search:focus-within{width:320px;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-focus);}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-border);background:#fff;
  color:var(--c-text-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:rgba(91,61,245,.06);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-border);background:#fff;color:var(--c-text);cursor:pointer;}
.mobile-drawer{display:none;border-top:1px solid var(--c-border);background:var(--c-bg-alt);padding:16px 0 20px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .m-search{display:flex;align-items:center;gap:10px;background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--r-btn);height:44px;padding:0 14px;margin-bottom:12px;}
.mobile-drawer .m-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;font-family:inherit;}
.mobile-drawer .m-nav{display:flex;flex-direction:column;}
.mobile-drawer .m-nav a{display:flex;align-items:center;height:48px;border-bottom:1px solid var(--c-border);color:var(--c-text-2);font-weight:600;font-size:15px;padding:0 4px;}
.mobile-drawer .m-nav a.active{color:var(--c-primary);}
.mobile-drawer .m-cta{margin-top:16px;display:block;text-align:center;}

/* ============ 分类 Hero（纯色块 + 点阵） ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F7F5FF 0%,#EFEBFF 100%);
  border-bottom:1px solid var(--c-border);
  padding:56px 0 64px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(91,61,245,.55) 1px,transparent 1px);
  background-size:14px 14px;
  opacity:.14;
  -webkit-mask-image:linear-gradient(100deg,transparent 0%,#000 55%,#000 100%);
  mask-image:linear-gradient(100deg,transparent 0%,#000 55%,#000 100%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-text-3);}
.crumb .now{color:var(--c-text-3);}
.cat-hero h1{font-size:40px;line-height:1.22;font-weight:800;letter-spacing:-.5px;max-width:820px;margin-bottom:16px;}
.cat-hero .lead{font-size:16.5px;color:var(--c-text-2);max-width:640px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;}
.hero-points span{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-border);
  border-radius:999px;height:32px;padding:0 14px;font-size:13.5px;font-weight:600;color:var(--c-text-2);
  box-shadow:var(--sh-1);
}
.hero-points i{color:var(--c-primary);font-size:12px;}

/* ============ 说明条 ============ */
.explain{
  background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:24px 26px;position:relative;box-shadow:var(--sh-1);
}
.explain::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;border-radius:0 4px 4px 0;background:var(--c-primary);}
.explain p{margin:0;font-size:15.5px;color:var(--c-text-2);line-height:1.9;}
.explain p + p{margin-top:10px;}

/* ============ 编号目录行 ============ */
.guide-list{display:grid;grid-template-columns:1fr;gap:12px;}
.guide-row{
  position:relative;display:flex;align-items:flex-start;gap:18px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guide-row::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary);opacity:0;transition:opacity .22s ease;
}
.guide-row:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:#D6CCFF;}
.guide-row:hover::before{opacity:1;}
.guide-num{
  font-family:var(--mono);font-size:20px;font-weight:700;color:var(--c-primary);
  flex:0 0 46px;line-height:1.4;letter-spacing:-.5px;
}
.guide-body{flex:1 1 auto;min-width:0;}
.guide-body h3{font-size:17px;font-weight:650;margin-bottom:4px;}
.guide-body p{margin:0;font-size:14.5px;color:var(--c-text-2);line-height:1.8;}
.guide-side{flex:0 0 auto;display:flex;align-items:center;gap:10px;padding-top:4px;}
.guide-side i{color:var(--c-text-3);font-size:13px;transition:transform .22s ease,color .22s ease;}
.guide-row:hover .guide-side i{transform:translateX(4px);color:var(--c-primary);}

/* ============ 提示条 ============ */
.tip-bar{
  display:flex;align-items:center;gap:12px;background:rgba(91,61,245,.08);
  border:1px solid rgba(91,61,245,.18);border-radius:999px;padding:12px 20px;
  font-size:14px;color:var(--c-primary-deep);font-weight:600;margin:24px 0;
}
.tip-bar i{color:var(--c-primary);}

/* ============ 卡片 ============ */
.card-c{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:20px;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-c:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D6CCFF;}
.card-img{border-radius:12px;overflow:hidden;margin-bottom:16px;background:var(--c-bg-tint);}
.card-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.card-c:hover .card-img img{transform:scale(1.03);}
.card-c h3{font-size:17.5px;font-weight:650;margin:10px 0 8px;}
.card-c p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;margin:0 0 14px;}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-border);}

/* ============ 深色数据带 ============ */
.dark-band{background:var(--c-ink);border-radius:var(--r-lg);padding:44px 40px;color:var(--c-text-inv);}
.dark-band .section-title{color:#fff;}
.dark-band .section-title::before{background:var(--c-accent);}
.dark-band .section-sub{color:rgba(242,240,255,.72);}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.stat{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);padding:22px;}
.stat .num{font-family:var(--mono);font-size:32px;font-weight:700;color:var(--c-accent);line-height:1.2;}
.stat .lbl{font-size:14px;color:rgba(242,240,255,.75);margin-top:6px;}

/* ============ FAQ ============ */
.accordion{--bs-accordion-border-color:var(--c-border);--bs-accordion-border-radius:14px;}
.accordion-item{
  background:#fff;border:1px solid var(--c-border);border-radius:14px !important;
  margin-bottom:10px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-button{
  background:#fff;color:var(--c-text);font-size:16px;font-weight:650;font-family:inherit;
  padding:18px 52px 18px 20px;box-shadow:none !important;border-radius:14px !important;
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:rgba(91,61,245,.05);}
.accordion-button::after{
  background-image:none !important;content:"+";font-size:20px;font-weight:500;color:var(--c-primary);
  width:auto;height:auto;transform:none !important;position:absolute;right:20px;top:50%;margin-top:-14px;line-height:1.3;
}
.accordion-button:not(.collapsed)::after{content:"−";}
.accordion-body{padding:4px 20px 20px;font-size:15px;color:var(--c-text-2);line-height:1.9;}

/* ============ CTA ============ */
.cta-band{
  background:var(--c-bg-tint);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--c-text-2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 分页胶囊 ============ */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin-top:36px;}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 16px;
  border-radius:999px;border:1px solid var(--c-border);background:#fff;font-size:14px;font-weight:600;color:var(--c-text-2);
  transition:all .2s ease;
}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary);}
.pager .current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:var(--sh-2);}
.pager .muted{color:var(--c-text-3);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-text-inv);padding:64px 0 24px;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;color:rgba(242,240,255,.72);line-height:1.8;max-width:320px;margin:0;}
.footer-h{font-size:15px;font-weight:650;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(242,240,255,.72);}
.footer-links a:hover{color:var(--c-accent);}
.footer-search{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;margin-top:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-btn);
}
.footer-search i{color:rgba(242,240,255,.6);font-size:13px;}
.footer-search input{flex:1 1 auto;background:transparent;border:0;outline:none;color:#fff;font-size:14px;font-family:inherit;}
.footer-search input::placeholder{color:rgba(242,240,255,.5);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:20px;
  font-size:13px;color:rgba(242,240,255,.6);
}
.footer-bottom a{color:rgba(242,240,255,.8);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search{width:200px;}
  .nav-search:focus-within{width:240px;}
  .stat-grid{grid-template-columns:repeat(3,1fr);}
}
@media (min-width:1200px){
  .guide-list{grid-template-columns:1fr 1fr;}
}
@media (max-width:991.98px){
  .nav-menu,.nav-search,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .section{padding:64px 0;}
  .cat-hero h1{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  body{font-size:16px;line-height:1.8;}
  .nav-inner{height:56px;gap:12px;}
  .brand-text{font-size:15.5px;}
  .section{padding:48px 0;}
  .section-title{font-size:22px;}
  .cat-hero{padding:36px 0 44px;}
  .cat-hero h1{font-size:28px;letter-spacing:-.3px;}
  .cat-hero .lead{font-size:15.5px;}
  .guide-row{flex-wrap:wrap;gap:12px;padding:18px;}
  .guide-num{flex:0 0 auto;font-size:18px;}
  .guide-side{width:100%;justify-content:flex-end;}
  .dark-band{padding:28px 22px;}
  .stat-grid{grid-template-columns:1fr;gap:14px;}
  .cta-band{padding:26px 22px;flex-direction:column;align-items:stretch;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-c{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  .pager .page-num{display:none;}
}