/* roulang page: index */
:root{
  --c-primary:#5B3DF5;
  --c-primary-700:#3F27C9;
  --c-accent:#00C2A8;
  --c-hot:#FF6A2B;
  --c-badge:#FFB020;
  --c-badge-text:#3A2A00;
  --bg-page:#F7F6FC;
  --bg-card:#FFFFFF;
  --bg-soft:#EFEDFB;
  --bg-dark:#14122B;
  --t-main:#1B1830;
  --t-sub:#55516E;
  --t-weak:#8A86A0;
  --line:#E6E3F2;
  --grad:linear-gradient(120deg,#5B3DF5 0%,#8A5BFF 55%,#00C2A8 100%);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(27,24,48,.06);
  --sh-2:0 16px 40px rgba(27,24,48,.12);
  --ease:.25s cubic-bezier(.4,0,.2,1);
  --sidebar-w:240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg-page);
  color:var(--t-main);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
a:hover{color:var(--c-primary)}
img{max-width:100%;display:block}
button,input{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(91,61,245,.18)}

/* ============ App Shell ============ */
.app-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:20px 16px 16px;z-index:1040;overflow-y:auto;
  transition:width var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 16px;border-bottom:1px solid var(--line);margin-bottom:16px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(91,61,245,.28);
}
.brand-text{font-size:14px;font-weight:800;line-height:1.28;letter-spacing:-.2px;color:var(--t-main)}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--t-weak);letter-spacing:0;margin-top:2px}

.nav-block{margin-bottom:18px}
.nav-label{font-size:11px;letter-spacing:1px;color:var(--t-weak);padding:0 12px 8px;font-weight:600}
.nav-list{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  color:var(--t-sub);font-size:14.5px;font-weight:500;
  transition:all var(--ease);
}
.nav-item i{width:20px;text-align:center;font-size:15px;color:var(--t-weak);transition:color var(--ease)}
.nav-item:hover{background:var(--bg-soft);color:var(--c-primary)}
.nav-item:hover i{color:var(--c-primary)}
.nav-item.active{background:var(--bg-soft);color:var(--c-primary-700);font-weight:700}
.nav-item.active i{color:var(--c-primary)}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.nav-sub{display:flex;flex-direction:column;gap:2px;margin-top:4px}
.nav-sub a{font-size:13px;color:var(--t-weak);padding:8px 12px;border-radius:10px}
.nav-sub a:hover{color:var(--c-primary);background:var(--bg-soft)}

.sidebar-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.sidebar-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:44px;border-radius:12px;background:var(--c-hot);color:#fff;
  font-weight:700;font-size:14.5px;box-shadow:0 10px 22px rgba(255,106,43,.28);
  transition:all var(--ease);
}
.sidebar-cta:hover{background:#E85B1E;color:#fff;transform:translateY(-2px)}
.foot-note{font-size:12px;color:var(--t-weak);text-align:center;margin-top:12px;line-height:1.6}

/* ============ Mobile bar ============ */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:1030;height:56px;
  align-items:center;gap:12px;padding:0 14px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.icon-btn{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--t-main);display:grid;place-items:center;font-size:16px;
  transition:all var(--ease);cursor:pointer;
}
.icon-btn:hover{background:var(--bg-soft);color:var(--c-primary);border-color:#D9D3F5}
.mobile-brand{flex:1;font-size:14px;font-weight:800;letter-spacing:-.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon-btn.cta{background:var(--c-hot);border-color:var(--c-hot);color:#fff}
.icon-btn.cta:hover{background:#E85B1E;color:#fff}

.drawer{width:280px !important;border-right:1px solid var(--line) !important}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.drawer .offcanvas-body{padding:16px 16px 24px}
.drawer-title{font-size:14px;font-weight:800;line-height:1.3}
.drawer-title small{display:block;font-size:11px;font-weight:500;color:var(--t-weak)}
.btn-close{--bs-btn-close-focus-shadow:0 0 0 2px rgba(91,61,245,.3)}

/* ============ Layout ============ */
.main-wrap{flex:1;width:100%;max-width:1340px;margin:0 auto;padding:28px 40px 0}
.section{padding-top:72px}
.section-head{margin-bottom:28px}
.grad-line{width:48px;height:4px;border-radius:2px;background:var(--grad);margin-bottom:16px}
.section-head h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;letter-spacing:-.4px;line-height:1.3}
.section-head p{margin-top:8px;color:var(--t-weak);font-size:14px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ============ Buttons ============ */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;border:0;
  background:var(--grad);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 10px 26px rgba(91,61,245,.28);transition:all var(--ease);cursor:pointer;
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(91,61,245,.36);filter:brightness(1.06)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;
  border:1px solid var(--c-primary);color:var(--c-primary);background:#fff;
  font-weight:600;font-size:15px;transition:all var(--ease);cursor:pointer;
}
.btn-ghost:hover{background:var(--bg-soft);color:var(--c-primary-700);transform:translateY(-2px)}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;background:#fff;color:var(--c-primary-700);
  font-weight:700;font-size:15px;border:0;transition:all var(--ease);cursor:pointer;
  box-shadow:0 10px 26px rgba(20,18,43,.18);
}
.btn-white:hover{color:var(--c-primary-700);transform:translateY(-2px);background:#F5F3FF}
.link-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600}
.link-text i{transition:transform var(--ease)}
.link-text:hover i{transform:translateX(3px)}

/* ============ Pills / Badges ============ */
.pill{
  display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--t-sub);font-weight:500;
}
.pill i{color:var(--c-accent);font-size:13px}
.badge-cat{
  display:inline-flex;align-items:center;background:rgba(0,194,168,.14);
  color:#00806F;font-size:12px;font-weight:700;padding:4px 11px;
  border-radius:999px;line-height:1.6;white-space:nowrap;
}
.badge-float{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);color:#00806F;backdrop-filter:blur(6px)}
.badge-data{
  display:inline-flex;align-items:baseline;gap:8px;background:var(--c-badge);
  color:var(--c-badge-text);border-radius:999px;padding:8px 18px;
  font-variant-numeric:tabular-nums;font-weight:700;
}
.badge-data b{font-size:24px;line-height:1}
.badge-data span{font-size:12.5px;font-weight:600}

/* ============ Hero ============ */
.hero{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(170deg,#EFEDFB 0%,#F6F4FE 48%,#FFFFFF 100%);
  padding:48px 44px 52px;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,61,245,.16),rgba(91,61,245,0) 70%);pointer-events:none;
}
.hero::before{
  content:"";position:absolute;left:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,168,.14),rgba(0,194,168,0) 70%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--c-primary-700);margin-bottom:18px;
}
.hero-kicker i{color:var(--c-hot)}
.hero h1{
  font-size:clamp(28px,3.5vw,48px);line-height:1.2;font-weight:800;
  letter-spacing:-.5px;margin-bottom:16px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);position:relative}
.hero-sub{font-size:clamp(15px,1.5vw,19px);color:var(--t-sub);line-height:1.75;max-width:560px;margin-bottom:22px}
.trust-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative;border-radius:20px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--sh-2);background:var(--bg-soft)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,18,43,0) 45%,rgba(20,18,43,.42) 100%);
}
.data-badge{
  position:absolute;right:16px;bottom:16px;z-index:3;
  background:var(--c-badge);color:var(--c-badge-text);
  border-radius:14px;padding:10px 18px;text-align:left;
  box-shadow:0 12px 28px rgba(0,0,0,.22);font-variant-numeric:tabular-nums;
}
.data-badge b{display:block;font-size:22px;line-height:1.15}
.data-badge span{font-size:12px;font-weight:600;opacity:.82}

/* ============ Entry grid ============ */
.entry-grid{display:grid;gap:20px;grid-template-columns:repeat(5,1fr)}
.card-x{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:all var(--ease);
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DAD4F6;color:inherit}
.card-hot::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);z-index:3}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.card-x:hover .card-thumb img{transform:scale(1.05)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;min-width:0}
.card-x h3{
  font-size:17px;font-weight:600;line-height:1.5;letter-spacing:-.2px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-x .excerpt{
  font-size:14px;line-height:1.72;color:var(--t-sub);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:6px;font-size:13px;color:var(--t-weak);
  border-top:1px dashed var(--line);
}
.card-meta .link-text{font-size:13px}
.entry-wide{flex-direction:row}
.entry-wide .card-thumb{width:42%;flex:0 0 42%;aspect-ratio:auto;align-self:stretch;min-height:170px}
.entry-wide .card-body{flex:1}
.entry-narrow .card-thumb{aspect-ratio:16/10}

/* ============ Reviews ============ */
.carousel-wrap{position:relative;padding:0 56px}
.review-row{display:flex;gap:20px}
.review-card{
  flex:0 0 calc(50% - 10px);background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--sh-1);
  transition:all var(--ease);
}
.review-card:hover{box-shadow:var(--sh-2)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;display:grid;place-items:center;
  background:var(--bg-soft);color:var(--c-primary);font-weight:700;font-size:16px;
}
.avatar.a2{background:rgba(0,194,168,.16);color:#00806F}
.avatar.a3{background:rgba(255,106,43,.14);color:#D4500F}
.review-head strong{display:block;font-size:14.5px;font-weight:700;line-height:1.4}
.review-head span{font-size:12.5px;color:var(--t-weak)}
.review-card p{font-size:14.5px;line-height:1.75;color:var(--t-sub)}
.stars{margin-top:14px;color:var(--c-badge);font-size:14px;letter-spacing:3px;font-family:system-ui}
.carousel-control-prev,.carousel-control-next{
  width:44px;height:44px;top:50%;transform:translateY(-50%);opacity:1;
  border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--c-primary);
  box-shadow:var(--sh-1);transition:all var(--ease);
}
.carousel-control-prev{left:0}
.carousel-control-next{right:0}
.carousel-control-prev:hover,.carousel-control-next:hover{background:var(--bg-soft);border-color:#D9D3F5;color:var(--c-primary-700)}
.carousel-control-prev i,.carousel-control-next i{font-size:15px}
.carousel-indicators{position:static;margin:26px 0 0;gap:8px}
.carousel-indicators [data-bs-target]{
  width:8px;height:8px;border-radius:999px;background:#D5D0EC;
  border:0;opacity:1;margin:0;transition:all var(--ease);
}
.carousel-indicators .active{width:24px;background:var(--c-primary)}

/* ============ Trust bar ============ */
.trust-bar{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  background:var(--bg-soft);border-radius:999px;padding:16px 26px;
}
.trust-item{display:inline-flex;align-items:center;gap:9px;font-size:13.5px;font-weight:600;color:var(--t-sub)}
.trust-item i{color:var(--c-primary);font-size:14px}

/* ============ CTA band ============ */
.cta-band{
  border-radius:var(--r-lg);background:var(--grad);padding:34px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  box-shadow:0 18px 44px rgba(91,61,245,.24);
}
.cta-band p{color:#fff;font-size:clamp(17px,2vw,22px);font-weight:700;letter-spacing:-.3px;line-height:1.45}
.cta-band p small{display:block;font-size:13px;font-weight:500;opacity:.82;margin-top:6px;letter-spacing:0}

/* ============ News list ============ */
.news-card{height:100%}
.news-card .card-thumb{aspect-ratio:16/9}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:64px 24px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-md);color:var(--t-weak);font-size:14px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--c-primary);opacity:.45}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{
  border:1px solid var(--line) !important;border-radius:var(--r-md) !important;
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--t-main);background:#fff;
  padding:20px 24px;box-shadow:none !important;border-radius:var(--r-md) !important;
}
.accordion-button:not(.collapsed){color:var(--c-primary-700);background:var(--bg-soft)}
.accordion-button::after{
  background-image:none;content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;font-size:14px;color:var(--c-primary);
  transition:transform var(--ease);transform-origin:center;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.8;color:var(--t-sub);background:#fff}

/* ============ Footer ============ */
.site-footer{
  position:relative;background:var(--bg-dark);color:rgba(255,255,255,.7);
  margin-top:80px;padding:56px 40px 0;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:0 8px 18px rgba(0,0,0,.35)}
.footer-brand-text{font-size:15px;font-weight:800;color:#fff;line-height:1.3;letter-spacing:-.2px}
.site-footer p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.62)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom span{font-size:12.5px;color:rgba(255,255,255,.45)}

/* ============ Responsive ============ */
@media (min-width:992px) and (max-width:1199px){
  :root{--sidebar-w:76px}
  .sidebar{padding:18px 12px}
  .brand{justify-content:center;padding:4px 0 16px}
  .brand-text,.nav-label,.nav-item span,.nav-sub,.foot-note,.sidebar-cta span{display:none}
  .nav-item{justify-content:center;padding:0}
  .sidebar-cta{width:44px;height:44px;padding:0;margin:0 auto}
  .entry-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:1199px){
  .entry-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:991px){
  :root{--sidebar-w:0px}
  .sidebar{display:none}
  .mobile-bar{display:flex}
  .app-main{margin-left:0}
  .main-wrap{padding:20px 20px 0}
  .hero{padding:32px 24px 36px}
  .hero-media{aspect-ratio:16/9}
  .section{padding-top:56px}
  .entry-grid{grid-template-columns:repeat(3,1fr);gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .site-footer{padding:48px 24px 0;margin-top:56px}
  .carousel-wrap{padding:0 48px}
  .trust-bar{border-radius:var(--r-md);padding:18px 22px;justify-content:flex-start}
}
@media (max-width:767px){
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .review-card{flex:0 0 100%}
  .carousel-wrap{padding:0 44px}
  .card-body{padding:16px 16px 18px}
  .cta-band{padding:26px 22px;border-radius:var(--r-md)}
  .cta-band .btn-white{width:100%}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .section-head h2{font-size:22px}
}
@media (max-width:520px){
  .main-wrap{padding:16px 14px 0}
  .hero{padding:26px 18px 30px}
  .hero h1{font-size:28px}
  .entry-grid{grid-template-columns:1fr}
  .entry-wide{flex-direction:column}
  .entry-wide .card-thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9;min-height:0}
  .footer-grid{grid-template-columns:1fr}
  .carousel-wrap{padding:0 40px}
  .carousel-control-prev,.carousel-control-next{width:36px;height:36px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-700:#3F27C9;
  --c-accent:#00C2A8;
  --c-hot:#FF6A2B;
  --c-badge:#FFB020;
  --c-badge-text:#3A2A00;
  --bg-page:#F7F6FC;
  --bg-card:#FFFFFF;
  --bg-soft:#EFEDFB;
  --bg-dark:#14122B;
  --c-text:#1B1830;
  --c-text-2:#55516E;
  --c-text-3:#8A86A0;
  --line:#E6E3F2;
  --grad-brand:linear-gradient(120deg,#5B3DF5 0%,#8A5BFF 55%,#00C2A8 100%);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-img:14px;
  --sh-rest:0 8px 24px rgba(27,24,48,.06);
  --sh-hover:0 16px 40px rgba(27,24,48,.12);
  --ease:all .25s cubic-bezier(.4,0,.2,1);
  --sidebar-w:240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--bg-page);
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:var(--ease);}
a:hover{color:var(--c-primary-700);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--c-text);}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* ---------- 左侧 App Shell ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--bg-card);
  border-right:1px solid var(--line);
  padding:20px 16px 18px;
  display:flex;
  flex-direction:column;
  z-index:1040;
}
.side-logo{
  display:flex;align-items:center;gap:10px;
  height:64px;
  padding:0 8px;
  margin-bottom:10px;
}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:12px;
  background:var(--grad-brand);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  box-shadow:0 6px 16px rgba(91,61,245,.28);
}
.side-logo-text{
  font-size:15px;font-weight:800;letter-spacing:-.2px;
  color:var(--c-text);
  line-height:1.25;
}
.side-logo-text small{display:block;font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:0;}
.nav-list{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;
  border-radius:var(--r-sm);
  color:var(--c-text-2);
  font-size:15px;font-weight:600;
  text-decoration:none;
  transition:var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:15px;}
.nav-item:hover{background:var(--bg-soft);color:var(--c-primary);}
.nav-item.active{background:var(--bg-soft);color:var(--c-primary);}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;
  width:3px;height:24px;border-radius:2px;background:var(--c-primary);
}
.side-sub{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);}
.side-sub-title{font-size:12px;color:var(--c-text-3);padding:0 12px 8px;letter-spacing:.5px;}
.side-sub a{display:block;font-size:13px;color:var(--c-text-3);padding:7px 12px;border-radius:10px;}
.side-sub a:hover{color:var(--c-primary);background:var(--bg-soft);}
.side-foot{margin-top:auto;padding-top:18px;}
.side-foot .btn-grad{width:100%;justify-content:center;}
.side-foot-note{margin-top:12px;font-size:12px;line-height:1.6;color:var(--c-text-3);}

/* ---------- 主内容 ---------- */
.main-area{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;}

.mobile-top{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:1050;
}
.mobile-top .hamburger,
.mobile-top .mobile-cta{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--c-primary);font-size:16px;
}
.mobile-top .hamburger{border:none;background:transparent;}
.mobile-brand{font-size:15px;font-weight:800;letter-spacing:-.2px;}
.nav-drawer{width:280px !important;}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);}
.nav-drawer .offcanvas-title{font-size:16px;font-weight:800;}

/* ---------- 页头带 ---------- */
.page-hero{
  position:relative;
  margin-top:32px;
  border-radius:var(--r-lg);
  overflow:hidden;
  padding:44px 40px 40px;
  color:#fff;
  background-image:linear-gradient(120deg,rgba(63,39,201,.92) 0%,rgba(91,61,245,.82) 48%,rgba(0,194,168,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{opacity:.6;}
.page-hero h1{
  font-size:46px;line-height:1.2;font-weight:800;letter-spacing:-.5px;color:#fff;
  max-width:760px;
}
.page-hero .hero-sub{margin-top:14px;font-size:16px;color:rgba(255,255,255,.9);max-width:640px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;color:#fff;
  backdrop-filter:blur(4px);
}
.hero-pill i{font-size:12px;color:#CFF9F2;}

/* ---------- 板块通用 ---------- */
.section{margin-top:80px;}
.sec-head{max-width:760px;margin-bottom:28px;}
.sec-head h2{font-size:32px;font-weight:700;letter-spacing:-.4px;}
.sec-head .line{width:48px;height:4px;border-radius:2px;background:var(--grad-brand);margin-bottom:14px;}
.sec-head p{margin-top:10px;font-size:14px;color:var(--c-text-3);}

/* ---------- 快速入口表 ---------- */
.entry-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-rest);
  overflow:hidden;
}
.entry-row{
  display:grid;
  grid-template-columns:48px 1fr auto;
  align-items:center;
  gap:18px;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  transition:var(--ease);
}
.entry-row:last-child{border-bottom:none;}
.entry-row:hover{background:var(--bg-soft);}
.entry-num{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-soft);color:var(--c-primary);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.entry-row:hover .entry-num{background:#fff;}
.entry-name{font-size:17px;font-weight:600;line-height:1.4;}
.entry-desc{margin-top:4px;font-size:14px;color:var(--c-text-3);line-height:1.6;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  white-space:nowrap;
}
.btn-text i{transition:transform .25s cubic-bezier(.4,0,.2,1);font-size:12px;}
.btn-text:hover{color:var(--c-primary-700);}
.btn-text:hover i{transform:translateX(2px);}

/* ---------- 分组卡片 ---------- */
.group-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-rest);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:var(--ease);
}
.group-card:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);}
.group-media{aspect-ratio:16/9;overflow:hidden;}
.group-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.group-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1;}
.group-body h3{font-size:21px;font-weight:600;}
.group-body .g-desc{font-size:14px;line-height:1.7;color:var(--c-text-3);}
.sub-list{display:flex;flex-direction:column;}
.sub-list li{border-bottom:1px dashed var(--line);}
.sub-list li:last-child{border-bottom:none;}
.sub-list a{
  display:flex;align-items:flex-start;gap:10px;
  padding:11px 0;font-size:14px;color:var(--c-text-2);line-height:1.65;
}
.sub-list a i{color:var(--c-accent);font-size:11px;margin-top:7px;flex:0 0 auto;}
.sub-list a:hover{color:var(--c-primary);}
.group-foot{margin-top:auto;padding-top:6px;}
.badge-data{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-badge);color:var(--c-badge-text);
  border-radius:999px;padding:5px 14px;
  font-size:12px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.badge-cat{
  display:inline-flex;align-items:center;
  background:rgba(0,194,168,.12);color:#00937F;
  border-radius:999px;padding:4px 12px;
  font-size:12px;font-weight:600;
}

/* ---------- 数值条 ---------- */
.stats-strip{display:flex;flex-wrap:wrap;gap:14px;}
.stat-pill{
  display:flex;align-items:baseline;gap:10px;
  background:var(--bg-soft);
  border-radius:999px;
  padding:14px 24px;
  border:1px solid var(--line);
}
.stat-pill .num{font-size:28px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1;}
.stat-pill .lbl{font-size:13px;color:var(--c-text-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-acc .accordion-item{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  overflow:hidden;
}
.faq-acc .accordion-button{
  font-size:16px;font-weight:600;color:var(--c-text);
  background:var(--bg-card);
  padding:20px 22px;
  box-shadow:none;
  transition:var(--ease);
}
.faq-acc .accordion-button:hover{background:var(--bg-soft);}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-primary);
  background:var(--bg-soft);
  box-shadow:none;
}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-2px;z-index:2;}
.faq-acc .accordion-button::after{
  content:"";
  width:9px;height:9px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  background-image:none;
  transform:rotate(45deg);
  transition:transform .25s cubic-bezier(.4,0,.2,1);
  margin-left:auto;flex:0 0 auto;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-acc .accordion-body{
  padding:4px 22px 22px;
  font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ---------- CTA ---------- */
.cta-bar{
  margin-top:80px;
  border-radius:var(--r-lg);
  background:var(--grad-brand);
  color:#fff;
  padding:34px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:0 16px 40px rgba(91,61,245,.22);
}
.cta-bar h2{font-size:26px;font-weight:700;color:#fff;letter-spacing:-.3px;}
.cta-bar p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.88);}
.btn-white{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--c-primary);
  border:none;border-radius:var(--r-sm);
  padding:13px 26px;font-size:15px;font-weight:700;
  white-space:nowrap;
  transition:var(--ease);
}
.btn-white:hover{background:#F2F0FF;color:var(--c-primary-700);transform:translateY(-2px);}

/* ---------- 按钮 ---------- */
.btn-grad{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--grad-brand);
  color:#fff;border:none;border-radius:var(--r-sm);
  padding:12px 24px;font-size:15px;font-weight:600;
  transition:var(--ease);
}
.btn-grad:hover{color:#fff;filter:brightness(.94);transform:translateY(-2px);box-shadow:0 10px 24px rgba(91,61,245,.26);}
.btn-hot{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-hot);color:#fff;border:none;
  border-radius:var(--r-sm);padding:12px 24px;
  font-size:15px;font-weight:600;transition:var(--ease);
}
.btn-hot:hover{color:#fff;background:#F2571A;transform:translateY(-2px);}
.btn-outline-main{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--c-primary);
  border:1px solid var(--c-primary);border-radius:var(--r-sm);
  padding:12px 24px;font-size:15px;font-weight:600;
  transition:var(--ease);
}
.btn-outline-main:hover{background:var(--bg-soft);color:var(--c-primary-700);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  background:var(--bg-dark);
  color:#fff;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--grad-brand);
}
.footer-grid{
  width:100%;max-width:1280px;margin:0 auto;
  padding:60px 40px 36px;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand-text{font-size:16px;font-weight:800;color:#fff;}
.footer-grid p{font-size:14px;line-height:1.85;color:#A9A4C6;max-width:420px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{font-size:13px;color:#A9A4C6;}
.footer-col ul li a:hover{color:var(--c-accent);}
.footer-bottom{
  width:100%;max-width:1280px;margin:0 auto;
  padding:18px 40px 26px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:var(--c-text-3);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199.98px){
  :root{--sidebar-w:72px;}
  .side-logo{padding:0;justify-content:center;}
  .side-logo-text{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .nav-item span{
    display:none;
    position:absolute;left:76px;top:50%;transform:translateY(-50%);
    background:var(--bg-dark);color:#fff;
    padding:7px 14px;border-radius:10px;
    font-size:13px;white-space:nowrap;z-index:60;
    box-shadow:0 8px 24px rgba(0,0,0,.35);
  }
  .nav-item:hover span{display:block;}
  .side-sub,.side-foot{display:none;}
  .wrap{padding:0 28px;}
  .page-hero h1{font-size:38px;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .mobile-top{display:flex;}
  .main-area{margin-left:0;padding-top:56px;}
  .wrap{padding:0 20px;}
  .page-hero{margin-top:20px;padding:32px 24px 30px;}
  .page-hero h1{font-size:30px;}
  .section{margin-top:56px;}
  .sec-head h2{font-size:26px;}
  .entry-row{grid-template-columns:34px 1fr;row-gap:8px;padding:18px;}
  .entry-row .btn-text{grid-column:2;justify-self:start;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:28px 24px;margin-top:56px;}
  .cta-bar .btn-white{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 20px 28px;gap:26px;}
  .footer-bottom{padding:16px 20px 24px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:767.98px){
  .page-hero h1{font-size:28px;letter-spacing:-.2px;}
  .page-hero .hero-sub{font-size:15px;}
  .section{margin-top:44px;}
  .sec-head h2{font-size:23px;}
  .stat-pill{padding:12px 18px;flex:1 1 100%;}
  .stat-pill .num{font-size:24px;}
  .entry-name{font-size:16px;}
  .group-body{padding:20px;}
  .cta-bar h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-grid p{max-width:none;}
}

/* roulang page: article */
:root{
  --c-primary:#5B3DF5;
  --c-primary-700:#3F27C9;
  --c-accent:#00C2A8;
  --c-accent-700:#00907E;
  --c-hot:#FF6A2B;
  --c-badge:#FFB020;
  --c-badge-text:#3A2A00;
  --bg-page:#F7F6FC;
  --bg-card:#FFFFFF;
  --bg-soft:#EFEDFB;
  --bg-dark:#14122B;
  --text:#1B1830;
  --text-2:#55516E;
  --text-3:#8A86A0;
  --line:#E6E3F2;
  --grad:linear-gradient(120deg,#5B3DF5 0%,#8A5BFF 55%,#00C2A8 100%);
  --r-lg:20px;
  --r-md:16px;
  --r-btn:12px;
  --r-img:14px;
  --sh:0 8px 24px rgba(27,24,48,.06);
  --sh-hover:0 16px 40px rgba(27,24,48,.12);
  --t:.25s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg-page);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--t),background var(--t)}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:rgba(91,61,245,.16)}

/* ============ 左侧 App Shell ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:240px;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:18px 14px 20px;z-index:1045;overflow-y:auto;
  transition:transform var(--t),width var(--t);
}
.brand{display:flex;align-items:center;gap:11px;min-height:64px;padding:0 6px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;background:var(--grad);
  color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:0 6px 16px rgba(91,61,245,.28);
}
.brand-text{font-size:15px;font-weight:800;letter-spacing:-.2px;line-height:1.25;color:var(--text)}
.nav-list{display:flex;flex-direction:column;gap:6px;margin-top:16px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:var(--r-btn);
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:background var(--t),color var(--t);
}
.nav-item i{width:18px;text-align:center;font-size:15px}
.nav-item:hover{background:var(--bg-soft);color:var(--c-primary)}
.nav-item.active{background:var(--bg-soft);color:var(--c-primary);font-weight:700}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--c-primary);
}
.side-foot{margin-top:auto;padding-top:20px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 14px;border-radius:var(--r-btn);background:var(--grad);
  color:#fff;font-size:14px;font-weight:700;
  transition:transform var(--t),box-shadow var(--t),filter var(--t);
}
.side-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(91,61,245,.28);filter:brightness(1.06)}
.side-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--text-3);text-align:center}

/* ============ 主内容外框 ============ */
.main-wrap{margin-left:240px;min-height:100vh;display:flex;flex-direction:column}
.page-shell{width:100%;max-width:1280px;margin:0 auto;padding:32px 40px 0;flex:1 1 auto}

/* ============ 移动端顶栏 ============ */
.mobile-bar{display:none}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,18,43,.45);
  opacity:0;pointer-events:none;transition:opacity var(--t);z-index:1040;
}
.drawer-mask.show{opacity:1;pointer-events:auto}

/* ============ 面包屑 ============ */
.breadcrumb-x{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb-x a:hover{color:var(--c-primary)}
.breadcrumb-x .sep{color:#C9C5DC}
.crumb-now{display:inline-block;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom;color:var(--text-2)}

/* ============ 文章头部 ============ */
.article-head{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);padding:28px 30px 30px;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--text-3)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(0,194,168,.12);color:var(--c-accent-700);
}
.badge-data{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--c-badge);color:var(--c-badge-text);
  font-variant-numeric:tabular-nums;
}
.article-title{
  font-size:40px;font-weight:800;letter-spacing:-.5px;line-height:1.24;
  margin:16px 0 16px;
}
.lede{
  position:relative;max-width:780px;
  padding:14px 20px;background:var(--bg-soft);
  border-left:4px solid var(--c-primary);border-radius:0 14px 14px 0;
  font-size:15px;line-height:1.8;color:var(--text-2);
}

/* ============ 文章网格 ============ */
.article-grid{margin-top:24px}
.article-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);padding:30px 30px 34px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:#2A2640;overflow-wrap:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;color:var(--text);
  margin:40px 0 16px;padding-top:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:0;width:48px;height:4px;
  border-radius:2px;background:var(--grad);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--text);margin:28px 0 12px}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body ul{margin:0 0 1.2em}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body li::before{
  content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;
  border-radius:2px;background:var(--c-accent);
}
.article-body ol{padding-left:20px;margin:0 0 1.2em}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--bg-soft);
  border-left:4px solid var(--c-primary);border-radius:14px;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:20px 0;border-radius:var(--r-img)}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:-8px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--c-primary-700)}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:22px 0;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:14px;
}
.article-body th{background:var(--bg-soft);color:var(--text);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FAF9FE}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body pre{
  background:var(--bg-dark);color:#EDEBFF;border-radius:12px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:20px 0;
}
.article-body code{background:var(--bg-soft);color:var(--c-primary-700);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-md);
  background:#FBFAFF;
}
.empty-state i{font-size:36px;color:#C6C1E4}
.empty-state p{margin:14px 0 18px;font-size:14px;color:var(--text-3)}

/* ============ 文章尾部 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.tag-chip{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:var(--bg-soft);border:1px solid var(--line);
  color:var(--text-2);font-size:13px;transition:background var(--t),color var(--t);
}
.tag-chip:hover{background:#E3DFF9;color:var(--c-primary)}
.tail-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:26px;padding-top:22px;border-top:1px solid var(--line);flex-wrap:wrap;
}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  border:1px solid var(--c-primary);color:var(--c-primary);
  font-size:15px;font-weight:600;background:transparent;
  transition:background var(--t),transform var(--t);
}
.btn-ghost:hover{background:var(--bg-soft);transform:translateY(-2px)}
.btn-grad{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:0;
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  transition:transform var(--t),box-shadow var(--t),filter var(--t);
}
.btn-grad:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(91,61,245,.28);filter:brightness(1.06);color:#fff}
.btn-hot{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:0;
  background:var(--c-hot);color:#fff;font-size:15px;font-weight:600;
  transition:transform var(--t),filter var(--t),box-shadow var(--t);
}
.btn-hot:hover{transform:translateY(-2px);filter:brightness(.94);box-shadow:0 12px 26px rgba(255,106,43,.3);color:#fff}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:14px;font-weight:600;
}
.btn-text i{transition:transform var(--t)}
.btn-text:hover i{transform:translateX(2px)}

/* ============ 相关推荐 ============ */
.rel-block{margin-top:40px}
.block-title{font-size:22px;font-weight:700;margin-bottom:18px}
.block-title small{display:block;font-size:13px;font-weight:400;color:var(--text-3);margin-top:6px}
.rel-list{display:flex;flex-direction:column;gap:14px}
.rel-card{
  display:flex;gap:16px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px;box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D9D4F3}
.rel-card img{width:128px;height:88px;flex:0 0 128px;object-fit:cover;border-radius:12px}
.rel-card h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:8px}
.rel-meta{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:10px;flex-wrap:wrap}

/* ============ 右侧栏 ============ */
.side-stack{position:sticky;top:24px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);padding:22px;
}
.side-title{font-size:17px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--grad)}
.author-row{display:flex;align-items:center;gap:12px}
.avatar{
  width:46px;height:46px;flex:0 0 46px;border-radius:14px;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:18px;font-weight:700;
}
.author-name{font-size:15px;font-weight:700}
.author-desc{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.75}
.hot-list li{display:flex;gap:10px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;line-height:1.6}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-num{color:var(--c-primary);font-weight:800;font-variant-numeric:tabular-nums;flex:0 0 auto}
.hot-list a{color:var(--text-2)}
.hot-list a:hover{color:var(--c-primary)}
.cta-mini{
  background:var(--grad);color:#fff;border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:0 14px 30px rgba(91,61,245,.24);
}
.cta-mini h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px}
.cta-mini p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.9)}
.cta-mini .btn-white{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  padding:11px 20px;border-radius:var(--r-btn);background:#fff;
  color:var(--c-primary-700);font-size:14px;font-weight:700;
  transition:transform var(--t);
}
.cta-mini .btn-white:hover{transform:translateY(-2px)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:64px auto 0}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;padding:0 20px;box-shadow:var(--sh);
  transition:border-color var(--t);
}
.faq-item[open]{border-color:#D9D4F3}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:0 0 9px;margin-right:4px;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(45deg);transition:transform var(--t);
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-body{padding:0 0 18px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:760px}

/* ============ CTA 条 ============ */
.cta-band{
  margin-top:64px;padding:30px 34px;border-radius:var(--r-lg);
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
  box-shadow:0 16px 36px rgba(91,61,245,.22);
}
.cta-band h2{font-size:22px;font-weight:800;color:#fff;letter-spacing:-.2px}
.cta-band p{font-size:14px;color:rgba(255,255,255,.9);margin-top:6px}
.btn-white-solid{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);background:#fff;
  color:var(--c-primary-700);font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t);
}
.btn-white-solid:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.18)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:72px;background:var(--bg-dark);
  color:#CFCBEA;padding:56px 40px 26px;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.footer-grid{
  max-width:1280px;margin:0 auto;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:12px;font-size:16px}
.footer-brand-text{font-size:16px;font-weight:800;color:#fff}
.site-footer p{font-size:14px;line-height:1.85;color:#A9A4C9;max-width:420px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A9A4C9}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  max-width:1280px;margin:34px auto 0;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8A86A0;
}

/* ============ 响应式 ============ */
@media (min-width:992px) and (max-width:1199.98px){
  .sidebar{width:72px;padding:18px 10px 20px}
  .brand{justify-content:center;padding:0}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:0}
  .nav-item i{width:auto}
  .nav-item span{
    position:absolute;left:62px;top:50%;transform:translateY(-50%);
    background:#fff;border:1px solid var(--line);border-radius:10px;
    padding:6px 12px;font-size:13px;color:var(--text);white-space:nowrap;
    box-shadow:var(--sh);opacity:0;pointer-events:none;transition:opacity var(--t);
  }
  .nav-item:hover span{opacity:1}
  .nav-item.active::before{left:-10px}
  .side-cta span,.side-note{display:none}
  .main-wrap{margin-left:72px}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:991.98px){
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    position:fixed;top:0;left:0;right:0;height:56px;padding:0 14px;
    background:#fff;border-bottom:1px solid var(--line);z-index:1035;
  }
  .hamburger{
    width:44px;height:44px;border:0;background:transparent;color:var(--text);
    border-radius:var(--r-btn);font-size:18px;display:grid;place-items:center;
    transition:background var(--t);
  }
  .hamburger:hover{background:var(--bg-soft)}
  .mobile-brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--text)}
  .mobile-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:14px}
  .mobile-cta{
    width:44px;height:44px;border-radius:var(--r-btn);background:var(--c-hot);color:#fff;
    display:grid;place-items:center;font-size:16px;
  }
  .sidebar{width:280px;transform:translateX(-100%);box-shadow:0 0 40px rgba(20,18,43,.3)}
  .sidebar.open{transform:translateX(0)}
  .main-wrap{margin-left:0;padding-top:56px}
  .page-shell{padding:20px 18px 0}
  .article-head{padding:22px 20px 24px}
  .article-title{font-size:30px}
  .article-shell{padding:22px 20px 26px}
  .article-body{font-size:16px;line-height:1.85}
  .faq-wrap{margin-top:44px}
  .cta-band{margin-top:44px;padding:24px 22px}
  .site-footer{padding:44px 20px 22px;margin-top:52px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:767.98px){
  .article-title{font-size:26px;letter-spacing:-.3px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:17px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .rel-card{flex-direction:column;align-items:flex-start}
  .rel-card img{width:100%;height:170px;flex:0 0 auto}
  .cta-band{flex-direction:column;align-items:stretch}
  .cta-band .btn-white-solid{justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .tail-bar{flex-direction:column;align-items:flex-start}
  .tail-bar .btn-ghost{width:100%;justify-content:center}
}
@media (max-width:520px){
  .page-shell{padding:16px 14px 0}
  .article-head{padding:18px 16px 20px}
  .article-shell{padding:18px 16px 22px}
  .meta-row{gap:10px;font-size:12px}
  .lede{font-size:14px;padding:12px 14px}
  .btn-grad,.btn-ghost,.btn-hot{width:100%;justify-content:center}
  .cta-mini .btn-white{width:100%;justify-content:center}
  .crumb-now{max-width:170px}
}

/* roulang page: category2 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-700:#3F27C9;
  --c-accent:#00C2A8;
  --c-hot:#FF6A2B;
  --c-badge:#FFB020;
  --bg-page:#F7F6FC;
  --bg-card:#FFFFFF;
  --bg-soft:#EFEDFB;
  --bg-dark:#14122B;
  --tx-1:#1B1830;
  --tx-2:#55516E;
  --tx-3:#8A86A0;
  --line:#E6E3F2;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(27,24,48,.06);
  --sh-2:0 16px 40px rgba(27,24,48,.12);
  --grad:linear-gradient(120deg,#5B3DF5 0%,#8A5BFF 55%,#00C2A8 100%);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--tx-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
a{color:var(--c-primary);text-decoration:none;transition:color .25s var(--ease),background-color .25s var(--ease)}
a:hover{color:var(--c-primary-700)}
img{max-width:100%;display:block}
ul{list-style:none;margin:0;padding:0}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

/* ---------- 侧边导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:240px;
  background:#fff;border-right:1px solid var(--line);
  padding:22px 16px 18px;display:flex;flex-direction:column;
  z-index:1050;transition:transform .3s var(--ease);
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 8px 20px;color:var(--tx-1)}
.brand:hover{color:var(--tx-1)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--grad);
  color:#fff;display:grid;place-items:center;font-size:16px;
}
.brand-text{font-size:15px;font-weight:800;letter-spacing:-.2px;line-height:1.25}
.nav-list{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;
  border-radius:var(--r-sm);color:var(--tx-2);font-size:15px;
}
.nav-item i{width:20px;text-align:center;font-size:15px}
.nav-item:hover{background:var(--bg-soft);color:var(--c-primary)}
.nav-item.active{background:var(--bg-soft);color:var(--c-primary);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--c-primary);
}
.side-extra{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:2px}
.side-extra h5{font-size:12px;font-weight:600;letter-spacing:1px;color:var(--tx-3);margin:0 0 8px 12px}
.side-extra a{padding:8px 12px;border-radius:10px;font-size:14px;color:var(--tx-3)}
.side-extra a:hover{color:var(--c-primary);background:var(--bg-soft)}
.side-bottom{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.side-note{font-size:12px;line-height:1.7;color:var(--tx-3);margin-top:10px}

/* ---------- 按钮 ---------- */
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border:0;border-radius:var(--r-sm);
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease);
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(91,61,245,.30)}
.btn-grad:active{transform:translateY(0);filter:brightness(.94)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);
  border:1px solid var(--c-primary);background:transparent;color:var(--c-primary);
  font-size:15px;font-weight:600;
}
.btn-outline:hover{background:var(--bg-soft);color:var(--c-primary-700)}
.btn-hot{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--r-sm);
  background:var(--c-hot);color:#fff;font-size:15px;font-weight:600;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease);
}
.btn-hot:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,43,.32)}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--r-sm);
  background:#fff;color:var(--c-primary-700);font-size:15px;font-weight:700;
}
.btn-white:hover{color:var(--c-primary-700);transform:translateY(-2px)}
.w-100{width:100%}

/* ---------- 主区域 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:1060;
  align-items:center;justify-content:space-between;padding:0 12px;
  background:rgba(255,255,255,.95);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{font-size:15px;font-weight:800;letter-spacing:-.2px}
.icon-btn{
  width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
  color:var(--tx-2);background:transparent;border:0;font-size:17px;
}
.icon-btn:hover{background:var(--bg-soft);color:var(--c-primary)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(20,18,43,.45);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);
  z-index:1040;
}
.nav-overlay.show{opacity:1;visibility:visible}

.main-area{margin-left:240px;padding:36px 44px 44px;min-width:0}
.wrap{max-width:1280px;margin:0 auto}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;text-align:center;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px 32px 32px;
  background-image:linear-gradient(180deg,rgba(239,237,251,.95),rgba(247,246,252,.98)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.crumbs{display:flex;justify-content:center;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);margin-bottom:16px}
.crumbs a{color:var(--tx-3)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .cur{color:var(--tx-2)}
.page-head h1{font-size:44px;font-weight:800;letter-spacing:-.5px}
.page-head .page-sub{margin-top:14px;font-size:16px;color:var(--tx-2)}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:24px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--tx-2);font-size:14px;
  transition:all .25s var(--ease);
}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.active:hover{color:#fff}

/* ---------- 数据条 ---------- */
.stats-strip{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;
  margin-top:24px;padding:14px 20px;border:1px solid var(--line);
  background:var(--bg-soft);border-radius:999px;
}
.stat{display:flex;align-items:baseline;gap:8px;padding:2px 20px}
.stat b{font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{font-size:13px;color:var(--tx-3)}

/* ---------- 板块标题 ---------- */
.sec-head{margin-bottom:24px}
.sec-head h2{font-size:30px;font-weight:700;letter-spacing:-.4px}
.sec-head .sec-line{width:48px;height:4px;border-radius:4px;background:var(--grad);margin:12px 0 0}
.sec-head .sec-desc{margin-top:10px;font-size:14px;color:var(--tx-3)}

/* ---------- 时间线 ---------- */
.block-gap{margin-top:44px}
.timeline{display:flex;flex-direction:column}
.tl-item{position:relative;display:flex;gap:18px;padding-bottom:18px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:5px;top:40px;bottom:-2px;width:1px;background:var(--line);
}
.tl-item:last-child::before{display:none}
.tl-axis{flex:0 0 12px;display:flex;justify-content:center}
.tl-dot{
  width:12px;height:12px;border-radius:50%;background:var(--c-primary);margin-top:26px;
  box-shadow:0 0 0 4px rgba(91,61,245,.12);
}
.tl-card{
  flex:1;min-width:0;display:flex;align-items:center;gap:16px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);color:var(--tx-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9D4F5;color:var(--tx-1)}
.tl-body{flex:1;min-width:0}
.tl-body h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:8px}
.tl-body p{
  font-size:14px;line-height:1.7;color:var(--tx-2);margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--tx-3)}
.badge-cat{
  display:inline-flex;align-items:center;padding:2px 10px;border-radius:999px;
  background:rgba(0,194,168,.12);color:#00857A;font-size:12px;
}
.badge-cat.warm{background:rgba(255,106,43,.12);color:#C24A16}
.badge-cat.violet{background:rgba(91,61,245,.12);color:var(--c-primary-700)}
.tl-arrow{
  flex:0 0 36px;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--tx-3);
  transition:all .25s var(--ease);
}
.tl-card:hover .tl-arrow{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateX(3px)}

/* ---------- 侧栏 ---------- */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-card h3{font-size:17px;font-weight:700;margin-bottom:14px}
.side-list li{display:flex;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list .num{
  flex:0 0 18px;font-size:14px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.7;
}
.side-list a{font-size:14px;line-height:1.65;color:var(--tx-2)}
.side-list a:hover{color:var(--c-primary)}
.side-list .t{display:block;font-size:12px;color:var(--tx-3);margin-top:2px}
.visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;margin-bottom:14px}
.visual p{font-size:14px;line-height:1.7;color:var(--tx-2)}
.promo-card{
  background:var(--grad);border-radius:var(--r-md);padding:24px;color:#fff;
  position:relative;overflow:hidden;
}
.promo-card h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px}
.promo-card p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.9);margin-bottom:16px}
.promo-form{display:flex;flex-direction:column;gap:10px}
.promo-form input{
  height:44px;border-radius:var(--r-sm);padding:0 14px;font-size:14px;
  border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.16);color:#fff;
}
.promo-form input::placeholder{color:rgba(255,255,255,.72)}
.promo-form input:focus{outline:none;border:2px solid #fff;background:rgba(255,255,255,.22)}
.promo-form button{
  height:44px;border:0;border-radius:var(--r-sm);background:#fff;color:var(--c-primary-700);
  font-size:15px;font-weight:700;cursor:pointer;transition:transform .25s var(--ease);
}
.promo-form button:hover{transform:translateY(-2px)}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;gap:10px;margin:40px 0 8px;flex-wrap:wrap}
.pager a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;font-size:14px;color:var(--tx-2);font-variant-numeric:tabular-nums;
  transition:all .25s var(--ease);
}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary)}
.pager a.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--r-md)!important;
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--tx-1);background:#fff;
  padding:18px 22px;box-shadow:none!important;border:0;line-height:1.5;
}
.accordion-button:not(.collapsed){background:var(--bg-soft);color:var(--c-primary)}
.accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--tx-3);width:auto;height:auto;transition:transform .25s var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--c-primary)}
.accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--tx-2)}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:56px;border-radius:var(--r-lg);padding:32px 36px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:22px;
}
.cta-band h2{font-size:24px;font-weight:700;color:#fff}
.cta-band p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.9)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;background:var(--bg-dark);color:#fff;
  border-radius:var(--r-lg);padding:52px 40px 0;position:relative;overflow:hidden;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:15px}
.footer-brand-text{font-size:15px;font-weight:800;letter-spacing:-.2px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:40px;padding:20px 0 24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199.98px){
  .side-nav{width:76px;padding:22px 10px 18px;align-items:center}
  .brand{justify-content:center;padding:2px 0 20px}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:0;gap:0}
  .nav-item span{display:none}
  .nav-item.active::before{left:-10px}
  .side-extra{display:none}
  .side-bottom .btn-grad span{display:none}
  .side-note{display:none}
  .main-area{margin-left:76px;padding:32px 28px 36px}
}
@media (max-width:991.98px){
  .side-nav{width:280px;transform:translateX(-100%);box-shadow:0 0 40px rgba(0,0,0,.22)}
  .side-nav.open{transform:translateX(0)}
  .mobile-bar{display:flex}
  .main-area{margin-left:0;padding:76px 20px 32px}
  .page-head h1{font-size:32px}
  .sec-head h2{font-size:26px}
  .tl-axis{display:none}
  .tl-item::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .page-head{padding:30px 18px 26px}
  .page-head h1{font-size:28px}
  .page-head .page-sub{font-size:15px}
  .stats-strip{border-radius:20px;justify-content:flex-start;padding:14px 16px}
  .stat{padding:2px 14px}
  .stat b{font-size:22px}
  .tl-card{padding:16px;gap:12px}
  .tl-arrow{display:none}
  .tl-body h3{font-size:17px}
  .cta-band{flex-direction:column;align-items:stretch;padding:26px 22px}
  .cta-band .btn-white{width:100%}
  .site-footer{padding:40px 24px 0;border-radius:16px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:575.98px){
  .main-area{padding:72px 14px 26px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .page-head h1{font-size:24px;letter-spacing:-.2px}
  .sec-head h2{font-size:22px}
  .chips{gap:8px}
  .chip{height:32px;padding:0 12px;font-size:13px}
  .stat{padding:2px 8px}
  .side-card{padding:18px}
}