/* roulang page: index */
:root{
  --bg:#0D0E11;
  --bg-2:#14161A;
  --card:#191C21;
  --card-hover:#1F232A;
  --primary:#F0451D;
  --primary-light:#FF6A3D;
  --primary-dark:#C9330F;
  --accent:#17C3A2;
  --text:#F3F0E9;
  --text-2:#9A9CA3;
  --text-3:#6E7076;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --success:#23C88B;
  --warning:#FFB020;
  --danger:#FF4D4F;
  --radius-card:14px;
  --radius-badge:6px;
  --radius-input:10px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.75);
  --shadow-hover:0 24px 52px -20px rgba(240,69,29,.35);
  --gap:24px;
  --gap-sm:16px;
  --container:1240px;
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;line-height:1.3;color:var(--text);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease);}
a:hover{color:var(--primary-light);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:rgba(240,69,29,.35);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--bg-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;}
.section-title{font-size:clamp(22px,2.4vw,32px);line-height:1.3;position:relative;padding-left:16px;}
.section-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--primary-light),var(--primary-dark));}
.section-desc{color:var(--text-2);font-size:15px;margin-top:10px;padding-left:16px;max-width:640px;}
.more-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--text-2);white-space:nowrap;min-height:44px;}
.more-link:hover{color:var(--primary-light);}
.more-link i{font-size:12px;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;border-radius:999px;font-size:16px;font-weight:700;
  border:1px solid transparent;transition:all var(--ease);white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#FF5A1F,#D93A0F);color:#fff;box-shadow:0 12px 28px -14px rgba(240,69,29,.9);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 36px -14px rgba(240,69,29,.95);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary-light);}
.btn-ghost:hover{background:rgba(240,69,29,.12);color:var(--primary-light);transform:translateY(-2px);}
.btn-mini{min-height:40px;padding:0 18px;font-size:14px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12px;letter-spacing:.04em;font-weight:700;
  background:rgba(0,0,0,.6);color:var(--primary-light);
  border:1px solid rgba(240,69,29,.35);backdrop-filter:none;
}
.badge--accent{color:var(--accent);border-color:rgba(23,195,162,.35);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(13,14,17,.72);
  border-bottom:1px solid transparent;
  transition:height var(--ease),background-color var(--ease),border-color var(--ease);
}
.site-header.is-stuck{background:rgba(13,14,17,.96);border-bottom-color:var(--line);backdrop-filter:none;}
.nav-inner{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  transition:height var(--ease);
}
.site-header.is-stuck .nav-inner{height:60px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,#FF5A1F,#C9330F);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;color:#fff;
  transform:skewX(-14deg);
}
.logo-mark span{display:block;transform:skewX(14deg);}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:15px;font-weight:800;color:var(--text);letter-spacing:-.01em;}
.logo-text i{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.08em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:44px;padding:0 15px;border-radius:999px;
  font-size:15px;color:var(--text-2);
}
.nav-link:hover{color:var(--text);background:var(--card);}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;border-radius:2px;
  background:var(--primary);transform:translateX(-50%);transition:width var(--ease);
}
.nav-link.is-active{color:var(--primary-light);background:rgba(240,69,29,.12);}
.nav-link.is-active::after{width:20px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;font-size:17px;
}
.hamburger:hover{border-color:var(--primary);color:var(--primary-light);}

.drawer{
  position:fixed;inset:0 0 0 auto;width:min(360px,86vw);z-index:120;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 220ms ease;
  display:flex;flex-direction:column;padding:22px 22px 26px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.drawer-close:hover{border-color:var(--primary);color:var(--primary-light);}
.drawer-nav a{
  display:flex;align-items:center;height:56px;font-size:18px;font-weight:700;
  border-bottom:1px solid var(--line);color:var(--text-2);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--primary-light);}
.drawer-foot{margin-top:auto;padding-top:18px;}
.drawer-foot .btn{width:100%;}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:110;opacity:0;visibility:hidden;transition:opacity 220ms ease,visibility 220ms ease;}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ hero ============ */
.hero{position:relative;min-height:620px;display:flex;align-items:flex-end;overflow:hidden;padding-top:120px;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center 30%;
  transform:scale(1.02);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(13,14,17,.96) 0%,rgba(13,14,17,.78) 42%,rgba(13,14,17,.30) 72%,rgba(13,14,17,.55) 100%),
    linear-gradient(180deg,rgba(13,14,17,.85) 0%,rgba(13,14,17,.15) 40%,rgba(13,14,17,.98) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%;padding-bottom:56px;}
.hero-copy{max-width:680px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;padding:6px 14px;border-radius:999px;border:1px solid rgba(23,195,162,.4);background:rgba(23,195,162,.08);color:var(--accent);font-size:13px;letter-spacing:.04em;font-weight:700;}
.hero-title{font-size:clamp(32px,4.6vw,58px);line-height:1.15;font-weight:800;letter-spacing:-.01em;}
.hero-title em{font-style:normal;color:var(--primary-light);}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:560px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.stat-bar{
  margin-top:38px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line-strong);
}
.stat-item{padding:16px 18px 0 0;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item b{display:block;font-size:clamp(20px,2.2vw,26px);color:var(--accent);font-variant-numeric:tabular-nums;font-weight:800;line-height:1.2;}
.stat-item span{display:block;margin-top:4px;font-size:13px;color:var(--text-2);}

/* ============ rail ============ */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:var(--gap);overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 2px 18px;scroll-behavior:smooth;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-track{background:transparent;}
.rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:999px;}
.rail:hover::-webkit-scrollbar-thumb{background:var(--primary);}
.rail-card{
  position:relative;flex:0 0 260px;width:260px;border-radius:var(--radius-card);
  overflow:hidden;border:1px solid var(--line);background:var(--card);
  scroll-snap-align:start;box-shadow:var(--shadow);transition:all var(--ease);
}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(240,69,29,.4);box-shadow:var(--shadow-hover);}
.rail-card .thumb{position:relative;aspect-ratio:3/4;overflow:hidden;}
.rail-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.rail-card:hover .thumb img{transform:scale(1.04);}
.rail-card .thumb .badge{position:absolute;top:12px;left:12px;}
.rail-card .thumb::after{content:"";position:absolute;left:0;right:0;bottom:0;height:60%;background:linear-gradient(180deg,rgba(13,14,17,0) 0%,rgba(13,14,17,.92) 100%);}
.rail-card .caption{position:absolute;left:0;right:0;bottom:0;padding:16px;z-index:2;}
.rail-card .caption h3{font-size:18px;line-height:1.45;}
.rail-card .caption p{margin:6px 0 0;font-size:13px;color:var(--text-2);line-height:1.7;}
.rail-more{
  flex:0 0 260px;width:260px;min-height:100%;border:1px dashed rgba(255,255,255,.22);
  border-radius:var(--radius-card);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;color:var(--text-2);font-size:15px;padding:24px;text-align:center;
}
.rail-more:hover{border-color:var(--primary);color:var(--primary-light);background:rgba(240,69,29,.05);}
.rail-more i{font-size:22px;color:var(--primary);}
.rail-nav{display:flex;gap:10px;}
.rail-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);
}
.rail-btn:hover{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ============ featured ============ */
.featured-grid{display:grid;grid-template-columns:2fr 1fr;gap:var(--gap);}
.feature-main{
  display:grid;grid-template-columns:1.15fr 1fr;gap:0;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card);
  box-shadow:var(--shadow);transition:all var(--ease);
}
.feature-main:hover{border-color:rgba(240,69,29,.4);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.feature-main .pic{position:relative;aspect-ratio:16/9;overflow:hidden;height:100%;}
.feature-main .pic img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.feature-main:hover .pic img{transform:scale(1.04);}
.feature-main .pic .badge{position:absolute;top:12px;left:12px;}
.feature-main .body{padding:28px;display:flex;flex-direction:column;gap:14px;justify-content:center;}
.feature-main h3{font-size:24px;line-height:1.4;}
.feature-main p{color:var(--text-2);font-size:15px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.meta i{font-size:11px;}
.feature-side{display:flex;flex-direction:column;gap:var(--gap);}
.mini-card{
  display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;
  padding:12px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--card);transition:all var(--ease);height:100%;
}
.mini-card:hover{background:var(--card-hover);border-color:rgba(240,69,29,.4);transform:translateY(-2px);}
.mini-card .pic{aspect-ratio:4/3;border-radius:10px;overflow:hidden;}
.mini-card .pic img{width:100%;height:100%;object-fit:cover;}
.mini-card h4{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-card span{display:block;margin-top:6px;font-size:13px;color:var(--text-3);}

/* ============ playlist ============ */
.playlist-grid{display:grid;grid-template-columns:1fr 2fr;gap:40px;padding:36px 0;border-top:1px solid var(--line);}
.playlist-grid:last-child{border-bottom:1px solid var(--line);}
.playlist-intro h3{font-size:clamp(20px,2vw,26px);line-height:1.35;}
.playlist-intro p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85;}
.playlist-intro .btn{margin-top:18px;}
.compact-list{display:flex;flex-direction:column;}
.compact-row{
  position:relative;display:grid;grid-template-columns:80px 1fr auto;gap:16px;align-items:center;
  padding:12px 14px;border-radius:12px;transition:all var(--ease);min-height:80px;
}
.compact-row::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity var(--ease);
}
.compact-row:hover{background:var(--card);}
.compact-row:hover::before{opacity:1;}
.compact-row .thumb{width:80px;height:56px;border-radius:8px;overflow:hidden;background:var(--card);}
.compact-row .thumb img{width:100%;height:100%;object-fit:cover;}
.compact-row .txt h4{font-size:16px;line-height:1.5;font-weight:700;}
.compact-row .txt p{margin:4px 0 0;font-size:13px;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.compact-row .side{text-align:right;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;white-space:nowrap;}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);}
.step{
  position:relative;padding:26px 22px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(25,28,33,.9),rgba(20,22,26,.9));
}
.step b{display:block;font-size:13px;letter-spacing:.08em;color:var(--accent);font-variant-numeric:tabular-nums;margin-bottom:12px;}
.step h4{font-size:18px;line-height:1.45;}
.step p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.85;}

/* ============ news cms ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card);
  box-shadow:var(--shadow);transition:all var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(240,69,29,.4);box-shadow:var(--shadow-hover);}
.news-card .pic{position:relative;aspect-ratio:16/9;overflow:hidden;}
.news-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.news-card:hover .pic img{transform:scale(1.04);}
.news-card .pic .badge{position:absolute;top:12px;left:12px;}
.news-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-card .body h3{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card .body p{font-size:14px;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.8;}
.news-card .body .meta{margin-top:auto;padding-top:8px;border-top:1px solid var(--line);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  border:1px dashed var(--line-strong);border-radius:var(--radius-card);background:var(--card);
}
.empty-state i{font-size:26px;color:var(--primary);}
.empty-state p{margin:14px 0 20px;color:var(--text-2);font-size:15px;}

/* ============ faq ============ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;text-align:left;
  min-height:64px;padding:14px 0;font-size:17px;font-weight:700;color:var(--text);
}
.faq-q:hover{color:var(--primary-light);}
.faq-q .num{
  flex-shrink:0;width:34px;height:34px;border-radius:50%;
  border:1px solid rgba(240,69,29,.5);color:var(--primary-light);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-variant-numeric:tabular-nums;font-weight:700;
}
.faq-q .plus{margin-left:auto;color:var(--primary);font-size:15px;transition:transform var(--ease);}
.faq-item.is-open .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease;}
.faq-a .inner{padding:0 0 22px 52px;font-size:15px;line-height:1.9;color:var(--text-2);}
.faq-item.is-open .faq-a{max-height:320px;}

/* ============ cta band ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(120deg,#F0451D 0%,#C9330F 55%,#7A1F0A 100%);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;top:-40%;left:44%;width:70%;height:180%;
  background:rgba(13,14,17,.55);transform:skewX(-14deg);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.6vw,34px);line-height:1.3;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0;}
.cta-band .btn-primary{background:#fff;color:#C9330F;box-shadow:0 14px 30px -16px rgba(0,0,0,.7);}
.cta-band .btn-primary:hover{color:#C9330F;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;}

/* ============ footer ============ */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-col > summary{
  list-style:none;font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--primary-light);
  margin-bottom:18px;display:block;
}
.footer-col > summary::-webkit-details-marker{display:none;}
.footer-body{padding-bottom:8px;}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:320px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{display:inline-block;font-size:14px;color:var(--text-2);min-height:32px;line-height:32px;}
.footer-links a:hover{color:var(--primary-light);transform:translateX(2px);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);margin-bottom:12px;line-height:1.8;}
.footer-contact i{color:var(--primary);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom span{color:var(--text-3);}

/* ============ responsive ============ */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .nav-links{display:none;}
  .hamburger{display:inline-flex;}
  .nav-actions .btn{display:none;}
  .hero{min-height:560px;padding-top:104px;}
  .featured-grid{grid-template-columns:1fr;}
  .feature-main{grid-template-columns:1fr;}
  .playlist-grid{grid-template-columns:1fr;gap:24px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rail-nav{display:none;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  body{font-size:16px;}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item{padding-right:12px;margin-bottom:14px;}
  .rail-card,.rail-more{flex:0 0 78vw;width:78vw;}
  .steps{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .compact-row{grid-template-columns:64px 1fr;gap:12px;}
  .compact-row .thumb{width:64px;height:48px;}
  .compact-row .side{grid-column:2;text-align:left;}
  .faq-a .inner{padding-left:0;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid var(--line);}
  .footer-col > summary{
    cursor:pointer;display:flex;justify-content:space-between;align-items:center;
    margin-bottom:0;padding:16px 0;min-height:52px;font-size:15px;
  }
  .footer-col > summary::after{content:"\002B";color:var(--primary);font-size:18px;}
  .footer-col[open] > summary::after{content:"\2212";}
  .footer-body{padding:0 0 16px;}
  .footer-brand p{margin-top:0;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:520px){
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .logo-text i{display:none;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
  --bg:#0D0E11;
  --bg-2:#14161A;
  --card:#191C21;
  --card-hover:#1F232A;
  --primary:#F0451D;
  --primary-light:#FF6A3D;
  --primary-dark:#C9330F;
  --accent:#17C3A2;
  --text:#F3F0E9;
  --text-2:#9A9CA3;
  --text-3:#6E7076;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --success:#23C88B;
  --warn:#FFB020;
  --error:#FF4D4F;
  --radius:14px;
  --radius-sm:6px;
  --radius-pill:999px;
  --radius-input:10px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.75);
  --shadow-hover:0 24px 52px -20px rgba(240,69,29,.35);
  --container:1240px;
  --section:88px;
  --t:180ms ease;
  --font:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,Segoe UI,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;}
p{margin:0 0 1.2em;}
ul,ol{margin:0;}
figure{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(240,69,29,.35);color:#fff;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.section{padding:var(--section) 0;}
.section-tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3;}
.section-head .section-note{color:var(--text-2);font-size:14px;margin:8px 0 0;}
.link-more{
  font-size:14px;
  color:var(--primary-light);
  white-space:nowrap;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.link-more:hover{color:var(--primary);border-color:var(--primary);}

/* 头部导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(13,14,17,.92) 0%,rgba(13,14,17,.55) 70%,rgba(13,14,17,0) 100%);
  transition:background-color var(--t),border-color var(--t),height var(--t);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:rgba(13,14,17,.96);
  border-bottom:1px solid var(--line);
  backdrop-saturate:120%;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height var(--t);
}
.site-header.is-stuck .header-inner{height:60px;}
.logo{display:flex;align-items:center;gap:12px;min-height:44px;}
.logo-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px 4px 10px 4px;
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  box-shadow:0 10px 24px -12px rgba(240,69,29,.85);
  transform:skewX(-8deg);
  flex:0 0 auto;
}
.logo-mark span{
  transform:skewX(8deg);
  font-size:13px;
  font-weight:800;
  letter-spacing:.04em;
  color:#fff;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.logo-text i{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--text-2);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{
  color:var(--primary-light);
  background:rgba(240,69,29,.12);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  transform:translateX(-50%);
  width:20px;height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  margin-left:10px;
  border-radius:var(--radius-pill);
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  color:#fff;
  font-size:15px;
  font-weight:700;
  box-shadow:0 14px 30px -18px rgba(240,69,29,.95);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(240,69,29,.9);}
.hamburger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  border-radius:12px;
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:18px;
  cursor:pointer;
}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(86vw,340px);
  background:var(--bg-2);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform 220ms ease;
  z-index:80;
  display:flex;
  flex-direction:column;
  padding:20px 20px 24px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--text);
  font-size:18px;cursor:pointer;
}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  display:flex;
  align-items:center;
  height:56px;
  font-size:18px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--primary-light);}
.drawer-foot{margin-top:auto;padding-top:18px;}
.drawer-foot .btn{width:100%;justify-content:center;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),border-color var(--t),color var(--t);
}
.btn-primary{
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  color:#fff;
  box-shadow:0 16px 32px -20px rgba(240,69,29,.95);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 42px -18px rgba(240,69,29,.85);}
.btn-ghost{
  background:transparent;
  border-color:rgba(240,69,29,.55);
  color:var(--primary-light);
}
.btn-ghost:hover{background:rgba(240,69,29,.12);border-color:var(--primary);color:#fff;}
.btn-outline{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-outline:hover{background:rgba(255,255,255,.06);border-color:var(--line-strong);}
.btn:active{transform:translateY(0);}

/* 徽章与标签 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--radius-sm);
  font-size:12px;
  letter-spacing:.04em;
  font-weight:700;
  background:rgba(0,0,0,.6);
  color:var(--primary-light);
  border:1px solid rgba(240,69,29,.35);
}
.badge-accent{color:var(--accent);border-color:rgba(23,195,162,.35);}
.tag{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:13px;
  color:var(--text-2);
  background:var(--card);
  border:1px solid var(--line);
}
.tag:hover{color:var(--primary-light);border-color:rgba(240,69,29,.4);background:var(--card-hover);}

/* 文章头部 */
.article-hero{
  position:relative;
  padding:150px 0 48px;
  background-image:linear-gradient(180deg,rgba(13,14,17,.86) 0%,rgba(13,14,17,.94) 60%,var(--bg) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero-inner{max-width:820px;}
.breadcrumb{margin-bottom:16px;}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  padding:0;
  font-size:13px;
  color:var(--text-2);
}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .current{color:var(--text);}
.article-hero .badge{margin-bottom:18px;}
.article-title{
  font-size:clamp(28px,3.6vw,46px);
  line-height:1.2;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{color:var(--text-3);}
.article-meta i{color:var(--primary);font-size:12px;}

/* 正文 */
.article-layout{padding:56px 0 24px;}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:17px;
  line-height:1.9;
  color:#E7E4DD;
}
.article-body p{margin-bottom:1.2em;}
.article-body h2{
  position:relative;
  margin:2.2em 0 .8em;
  padding-left:16px;
  font-size:clamp(20px,2.1vw,26px);
  line-height:1.4;
  color:var(--text);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;bottom:.28em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary-light),var(--primary-dark));
}
.article-body h3{
  margin:1.8em 0 .6em;
  font-size:19px;
  font-weight:800;
  color:var(--text);
}
.article-body h4{
  margin:1.6em 0 .5em;
  font-size:17px;
  font-weight:800;
  color:var(--primary-light);
}
.article-body a{color:var(--primary-light);border-bottom:1px solid rgba(240,69,29,.4);}
.article-body a:hover{color:var(--primary);}
.article-body strong{color:#fff;font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;
  padding:20px 22px;
  background:var(--card);
  border-left:2px solid var(--primary);
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{
  margin:0 0 1.2em;
  padding-left:1.4em;
}
.article-body li{margin-bottom:.5em;}
.article-body ul li::marker{color:var(--primary);}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body img{
  margin:1.8em auto;
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--text-3);
  margin-top:-1em;
  margin-bottom:2em;
}
.article-body table{
  margin:1.6em 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.article-body th{
  background:var(--bg-2);
  color:var(--text);
  font-weight:700;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.article-body td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
}
.article-body tr:last-child td{border-bottom:0;}
.article-body code{
  padding:2px 7px;
  border-radius:5px;
  background:#101216;
  border:1px solid var(--line);
  color:var(--accent);
  font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  margin:1.6em 0;
  padding:18px 20px;
  background:#101216;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:auto;
}
.article-body pre code{background:none;border:0;padding:0;color:var(--accent);}

/* 空态 */
.article-empty{
  max-width:760px;
  margin:0 auto;
  text-align:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:56px 28px;
  box-shadow:var(--shadow);
}
.article-empty h2{font-size:24px;margin-bottom:12px;}
.article-empty p{color:var(--text-2);font-size:15px;max-width:460px;margin:0 auto 24px;}

/* 文末 */
.article-foot{padding:16px 0 0;}
.article-foot-inner{max-width:760px;margin:0 auto;}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:24px 0;
  border-top:1px solid var(--line);
  margin-top:32px;
}
.tag-row .tag-label{
  font-size:13px;
  color:var(--text-3);
  align-self:center;
  margin-right:4px;
}
.post-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin:24px 0 0;
}
.post-nav a{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:20px 22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:border-color var(--t),background-color var(--t),transform var(--t),box-shadow var(--t);
}
.post-nav a:hover{
  background:var(--card-hover);
  border-color:rgba(240,69,29,.4);
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.post-nav .nav-dir{font-size:12px;color:var(--text-3);letter-spacing:.08em;}
.post-nav .nav-title{font-size:16px;font-weight:700;line-height:1.5;}
.post-nav .nav-sub{font-size:13px;color:var(--text-2);}
.post-nav .align-right{text-align:right;align-items:flex-end;}

/* 相关推荐 */
.related-grid{margin:0 -12px;}
.related-grid>.cell{padding:0 12px 24px;}
.post-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t),background-color var(--t);
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(240,69,29,.4);
  background:var(--card-hover);
  box-shadow:var(--shadow-hover);
}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-thumb .badge{position:absolute;left:12px;top:12px;}
.post-card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card-body h3{font-size:18px;line-height:1.45;}
.post-card-body p{
  margin:0;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.back-row{display:flex;justify-content:center;padding:8px 0 0;}

/* CTA 横幅 */
.cta-band{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--bg-2);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(240,69,29,.9) 0%,rgba(201,51,15,.32) 42%,rgba(20,22,26,0) 72%);
  transform:skewY(-1.6deg) scale(1.1);
  transform-origin:left center;
  opacity:.85;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:56px 0;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:10px;}
.cta-inner p{margin:0;color:rgba(255,255,255,.82);font-size:15px;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.cta-actions .btn-primary{box-shadow:0 18px 36px -20px rgba(0,0,0,.9);}
.cta-actions .btn-outline{border-color:rgba(255,255,255,.4);color:#fff;}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);}

/* 页脚 */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
}
.footer-col>summary{
  list-style:none;
  font-size:14px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--primary-light);
  margin-bottom:18px;
  cursor:default;
}
.footer-col>summary::-webkit-details-marker{display:none;}
.footer-body{font-size:14px;color:var(--text-2);}
.footer-brand p{font-size:14px;line-height:1.85;margin:16px 0 0;color:var(--text-2);}
.footer-brand .logo{margin-bottom:4px;}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  display:inline-block;
  font-size:14px;
  color:var(--text-2);
}
.footer-links a:hover{color:var(--primary-light);transform:translateX(2px);}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;
  padding:20px 0 32px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}

/* 响应式 */
@media screen and (max-width:1024px){
  .container{padding-left:24px;padding-right:24px;}
  :root{--section:64px;}
  .nav-links{display:none;}
  .hamburger{display:inline-flex;align-items:center;justify-content:center;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .article-hero{padding:130px 0 40px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  :root{--section:52px;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid var(--line);padding:16px 0;}
  .footer-col>summary{cursor:pointer;margin-bottom:0;}
  .footer-col>summary::after{
    content:"\f067";
    font-family:"Font Awesome 6 Free";
    font-weight:900;
    float:right;
    font-size:12px;
    color:var(--text-3);
    transition:transform var(--t);
  }
  .footer-col[open]>summary::after{transform:rotate(45deg);}
  .footer-body{padding-top:16px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .align-right{text-align:left;align-items:flex-start;}
  .cta-inner{padding:44px 0;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .article-hero{padding:116px 0 32px;}
}
@media screen and (max-width:520px){
  .container{padding-left:18px;padding-right:18px;}
  .article-body{font-size:16px;}
  .related-grid{margin:0;}
  .related-grid>.cell{padding:0 0 18px;}
  .footer-bottom{flex-direction:column;}
  .article-layout{padding:40px 0 16px;}
}

/* roulang page: category1 */
:root{
  --bg:#0D0E11;
  --bg-2:#14161A;
  --card:#191C21;
  --card-h:#1F232A;
  --primary:#F0451D;
  --primary-light:#FF6A3D;
  --primary-dark:#C9330F;
  --accent:#17C3A2;
  --text:#F3F0E9;
  --text-2:#9A9CA3;
  --text-3:#6E7076;
  --line:rgba(255,255,255,.08);
  --success:#23C88B;
  --warn:#FFB020;
  --danger:#FF4D4F;
  --radius:14px;
  --radius-sm:6px;
  --radius-lg:18px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.75);
  --shadow-h:0 24px 52px -20px rgba(240,69,29,.35);
  --gap:24px;
  --section:88px;
  --nav-h:72px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease,border-color .18s ease}
a:hover{color:var(--primary-light)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(240,69,29,.35);color:#fff}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:var(--section) 0;scroll-margin-top:96px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-title{font-size:clamp(22px,2.4vw,32px);font-weight:800}
.section-desc{color:var(--text-2);font-size:15px;max-width:640px;margin:0}
.section-link{font-size:14px;color:var(--primary-light);display:inline-flex;align-items:center;gap:6px}
.section-link i{font-size:12px;transition:transform .18s ease}
.section-link:hover i{transform:translateX(3px)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--primary-light);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--primary),transparent);display:block}

/* ============ Header / Nav ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:var(--nav-h);
  background:linear-gradient(to bottom,rgba(13,14,17,.92),rgba(13,14,17,.35));
  transition:height .18s ease,background-color .18s ease,border-color .18s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-shrunk{height:60px;background:rgba(13,14,17,.96);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:24px}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;display:grid;place-items:center;
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  clip-path:polygon(16% 0,100% 0,84% 100%,0 100%);
  font-size:12px;font-weight:800;letter-spacing:.02em;color:#fff;border-radius:4px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo-text small{font-size:11px;color:var(--text-3);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:15px;color:var(--text-2);border-radius:999px;
}
.nav-link::after{content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;background:var(--primary);transform:translateX(-50%);transition:width .18s ease}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary-light);background:rgba(240,69,29,.12)}
.nav-link.is-active::after{width:20px}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 20px;border-radius:999px;
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 10px 26px -12px rgba(240,69,29,.8);white-space:nowrap;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px -14px rgba(240,69,29,.95)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;background:rgba(255,255,255,.03);
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .18s ease,opacity .18s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:90;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .24s ease;
  padding:88px 24px 24px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer a.drawer-link{
  display:flex;align-items:center;height:56px;padding:0 16px;font-size:18px;color:var(--text-2);
  border-radius:12px;border-bottom:1px solid var(--line);
}
.nav-drawer a.drawer-link:hover,.nav-drawer a.drawer-link.is-active{color:var(--primary-light);background:rgba(240,69,29,.1)}
.drawer-mask{position:fixed;inset:0;background:rgba(6,7,9,.7);z-index:85;opacity:0;pointer-events:none;transition:opacity .24s ease}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-cta{margin-top:auto}

/* ============ Hero / 页头 ============ */
.page-hero{position:relative;overflow:hidden;padding:calc(var(--nav-h) + 54px) 0 64px;min-height:360px;display:flex;align-items:flex-end}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;transform:scale(1.02)}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(13,14,17,.95) 0%,rgba(13,14,17,.82) 42%,rgba(13,14,17,.5) 100%),
    linear-gradient(to top,rgba(13,14,17,1) 0%,rgba(13,14,17,0) 62%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{margin-bottom:16px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-3)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary-light)}
.breadcrumb [aria-current="page"]{color:var(--text)}
.page-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;max-width:840px}
.hero-sub{margin:16px 0 0;font-size:18px;color:var(--text-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  min-width:44px;border:1px solid transparent;
}
.btn-primary{background:linear-gradient(135deg,#FF5A1F,#D93A0F);color:#fff;box-shadow:0 14px 30px -14px rgba(240,69,29,.85)}
.btn-primary:hover{color:#fff;transform:translateY(-3px);box-shadow:var(--shadow-h)}
.btn-ghost{background:transparent;border-color:rgba(240,69,29,.6);color:var(--primary-light)}
.btn-ghost:hover{background:rgba(240,69,29,.12);color:#fff;transform:translateY(-3px)}
.btn-quiet{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text)}
.btn-quiet:hover{background:rgba(255,255,255,.09);color:#fff}
.btn:active{transform:translateY(-1px)}

/* ============ 数据条 ============ */
.stats-bar{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line)}
.stat-list li{background:var(--bg-2);padding:26px 24px}
.stat-list b{display:block;font-size:clamp(22px,2.2vw,30px);font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat-list span{display:block;font-size:13px;color:var(--text-3);margin-top:4px;letter-spacing:.04em}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.topic-card{
  height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background-color .18s ease;
}
.topic-card:hover{transform:translateY(-4px);background:var(--card-h);border-color:rgba(240,69,29,.4);box-shadow:var(--shadow-h)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.topic-card:hover .card-media img{transform:scale(1.04)}
.badge{
  position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-sm);font-size:12px;letter-spacing:.04em;
  background:rgba(0,0,0,.66);border:1px solid rgba(255,255,255,.1);color:var(--primary-light);
}
.badge-accent{color:var(--accent)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:19px;line-height:1.45;font-weight:700}
.card-text{color:var(--text-2);font-size:15px;line-height:1.8;margin:0}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ============ 对照表 ============ */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow)}
.entry-table{width:100%;min-width:720px;font-size:16px}
.entry-table th{
  text-align:left;padding:16px 22px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--text-2);background:rgba(255,255,255,.035);border-bottom:1px solid var(--line);white-space:nowrap;
}
.entry-table td{padding:18px 22px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top;font-size:15px;line-height:1.75}
.entry-table tr:last-child td{border-bottom:0}
.entry-table tbody tr:hover{background:rgba(255,255,255,.025)}
.entry-table td strong{display:block;color:var(--text);font-weight:600;font-size:16px;margin-bottom:4px}
.entry-table .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:8px;vertical-align:middle}
.table-note{margin:14px 0 0;font-size:13px;color:var(--text-3)}

/* ============ 步骤流程 ============ */
.step-grid{margin-left:-10px;margin-right:-10px;margin-bottom:-20px}
.step-grid > .cell{padding-left:10px;padding-right:10px;margin-bottom:20px}
.step-card{
  height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.step-card::after{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:linear-gradient(90deg,var(--primary),transparent);transition:width .24s ease}
.step-card:hover{transform:translateY(-4px);border-color:rgba(240,69,29,.4);box-shadow:var(--shadow-h)}
.step-card:hover::after{width:70%}
.step-num{
  width:44px;height:44px;display:grid;place-items:center;border-radius:50%;
  border:1px solid rgba(240,69,29,.5);color:var(--primary-light);font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:18px}
.step-card p{color:var(--text-2);font-size:15px;margin:0;line-height:1.8}

/* ============ 提示区 ============ */
.tip-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.tip-card{
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:var(--radius);padding:24px 26px;transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.tip-card:hover{background:var(--card-h);transform:translateX(3px)}
.tip-card h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.tip-card h3 i{color:var(--accent);font-size:15px}
.tip-card p{color:var(--text-2);font-size:15px;margin:0;line-height:1.85}

/* ============ CTA 条 ============ */
.cta-section{padding:0 0 var(--section)}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(100deg,#D93A0F 0%,#8A2409 42%,#14161A 100%);
  border:1px solid rgba(255,90,31,.35);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow);
}
.cta-band::before{content:"";position:absolute;top:-40%;left:34%;width:200px;height:190%;background:rgba(255,255,255,.06);transform:rotate(14deg)}
.cta-band::after{content:"";position:absolute;top:-40%;left:48%;width:60px;height:190%;background:rgba(255,255,255,.04);transform:rotate(14deg)}
.cta-copy,.cta-actions{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:800}
.cta-copy p{margin:10px 0 0;color:rgba(243,240,233,.82);font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}
.cta-band .btn-primary{background:#0D0E11;box-shadow:0 14px 30px -16px rgba(0,0,0,.9)}
.cta-band .btn-primary:hover{background:#fff;color:#0D0E11;box-shadow:0 18px 34px -16px rgba(0,0,0,.95)}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}

/* ============ Footer ============ */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-col{border:0}
.footer-col > summary{
  list-style:none;cursor:pointer;font-size:14px;letter-spacing:.08em;color:var(--primary-light);
  font-weight:700;margin-bottom:18px;
}
.footer-col > summary::-webkit-details-marker{display:none}
.footer-body{font-size:15px;color:var(--text-2)}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{margin:0;font-size:14px;line-height:1.85;color:var(--text-3);max-width:320px}
.footer-links li{margin-bottom:12px}
.footer-links a{display:inline-block;font-size:15px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary-light);transform:translateX(2px)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:14px;color:var(--text-2)}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 24px}
  :root{--section:72px}
}
@media (max-width:1023px){
  :root{--section:64px;--gap:20px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .logo-text b{font-size:15px}
  .tip-grid{grid-template-columns:1fr}
  .page-hero{padding:calc(var(--nav-h) + 40px) 0 48px;min-height:320px}
  .hero-sub{font-size:16px}
}
@media (max-width:639px){
  :root{--section:48px;--gap:16px;--nav-h:64px}
  .container{padding:0 18px}
  body{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .stat-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid var(--line);padding:14px 0}
  .footer-col > summary{margin-bottom:0}
  .footer-col[open] > summary{margin-bottom:16px}
  .hero-actions .btn{width:100%}
  .cta-band{padding:30px 22px;border-radius:14px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .step-grid > .cell{margin-bottom:16px}
}
@media (min-width:1024px){
  .footer-col > summary{cursor:default;pointer-events:none}
  .footer-col:not([open]) > .footer-body{display:block}
}

/* roulang page: category3 */
:root{
  --bg:#0D0E11;
  --bg-2:#14161A;
  --panel:#191C21;
  --panel-2:#1F232A;
  --primary:#F0451D;
  --primary-light:#FF6A3D;
  --primary-dark:#C9330F;
  --accent:#17C3A2;
  --text:#F3F0E9;
  --text-2:#9A9CA3;
  --text-3:#6E7076;
  --line:rgba(255,255,255,.08);
  --ok:#23C88B;
  --warn:#FFB020;
  --err:#FF4D4F;
  --r-card:14px;
  --r-badge:6px;
  --r-input:10px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.75);
  --shadow-hover:0 24px 52px -20px rgba(240,69,29,.35);
  --gap:24px;
  --sec:88px;
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease;}
a:hover{color:var(--primary-light);}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
input,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:rgba(240,69,29,.35);color:#fff;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--sec) 0;}
.section--tight{padding:calc(var(--sec) * .68) 0;}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);}
.section-head .sec-desc{color:var(--text-2);font-size:15px;max-width:640px;margin-top:8px;}
.sec-link{color:var(--primary-light);font-size:15px;display:inline-flex;align-items:center;gap:8px;}
.sec-link i{font-size:12px;transition:transform .18s ease;}
.sec-link:hover i{transform:translateX(4px);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(13,14,17,.92);
  border-bottom:1px solid transparent;
  transition:height .22s ease,background-color .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{
  background:#0D0E11;
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -20px rgba(0,0,0,.9);
}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
  transition:height .22s ease;
}
.site-header.is-scrolled .nav-bar{height:60px;}
.logo{display:inline-flex;align-items:center;gap:12px;min-height:44px;}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary-light),var(--primary-dark));
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#fff;letter-spacing:.02em;
  transform:skewX(-8deg);
  box-shadow:0 10px 22px -12px rgba(240,69,29,.9);
}
.logo-mark span{transform:skewX(8deg);}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:.01em;}
.logo-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.14em;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:0 14px;height:44px;border-radius:999px;
  font-size:15px;color:var(--text-2);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{
  color:var(--primary-light);
  background:rgba(240,69,29,.12);
  font-weight:600;
}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:5px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
}
.nav-cta{
  margin-left:14px;
  display:inline-flex;align-items:center;gap:8px;
  padding:0 20px;height:44px;border-radius:999px;
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 14px 26px -16px rgba(240,69,29,.95);
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;font-size:18px;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:80;
  background:#101216;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s ease;
  display:flex;flex-direction:column;
  padding:22px 20px 20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:44px;height:44px;border-radius:12px;background:var(--panel);border:1px solid var(--line);color:var(--text);font-size:18px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  height:56px;display:flex;align-items:center;font-size:18px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--primary-light);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:18px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .22s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 26px;border-radius:999px;
  font-size:16px;font-weight:600;border:1px solid transparent;
  transition:all .18s ease;
}
.btn-primary{background:linear-gradient(135deg,#FF5A1F,#D93A0F);color:#fff;box-shadow:0 16px 30px -18px rgba(240,69,29,.95);}
.btn-primary:hover{color:#fff;transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.btn-ghost{background:transparent;border-color:rgba(240,69,29,.55);color:var(--primary-light);}
.btn-ghost:hover{background:rgba(240,69,29,.12);color:var(--primary-light);transform:translateY(-3px);}
.btn-block{width:100%;}

/* ---------- Breadcrumb ---------- */
.crumb-wrap{padding-top:104px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .current{color:var(--text);}

/* ---------- Category hero (240px) ---------- */
.cat-hero{
  position:relative;
  min-height:240px;
  display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(13,14,17,.96) 0%,rgba(13,14,17,.82) 48%,rgba(13,14,17,.6) 100%),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  margin-top:24px;
}
.cat-hero .hero-grid{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:32px;align-items:center;padding:44px 0;
}
.tag-skew{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;margin-bottom:16px;
  background:rgba(0,0,0,.6);border:1px solid rgba(240,69,29,.5);
  color:var(--primary-light);font-size:12px;letter-spacing:.04em;font-weight:700;
  border-radius:var(--r-badge);
  transform:skewX(-14deg);
}
.tag-skew span{transform:skewX(14deg);}
.cat-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.18;
  max-width:760px;
}
.cat-hero .hero-sub{color:var(--text-2);font-size:16px;margin-top:12px;max-width:620px;}
.hero-side{
  background:rgba(25,28,33,.92);
  border:1px solid rgba(240,69,29,.42);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow);
}
.hero-side h3{font-size:15px;color:var(--primary-light);letter-spacing:.04em;margin-bottom:10px;}
.hero-side ul li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--text-2);padding:7px 0;
  border-bottom:1px dashed var(--line);
}
.hero-side ul li:last-child{border-bottom:0;}
.hero-side ul li i{color:var(--accent);margin-top:6px;font-size:12px;}

/* ---------- Zigzag ---------- */
.zig{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;align-items:center;
  padding:36px 0;
  border-bottom:1px solid var(--line);
}
.zig:last-child{border-bottom:0;}
.zig-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.zig-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s ease;}
.zig:hover .zig-media img{transform:scale(1.04);}
.zig-media .badge{
  position:absolute;top:12px;left:12px;
  background:rgba(0,0,0,.66);color:var(--primary-light);
  font-size:12px;letter-spacing:.04em;padding:5px 11px;border-radius:var(--r-badge);
  border:1px solid rgba(240,69,29,.35);
}
.zig-media .num{
  position:absolute;right:14px;bottom:10px;
  font-size:34px;font-weight:800;color:rgba(255,255,255,.22);font-variant-numeric:tabular-nums;
}
.zig:nth-child(even) .zig-media{order:2;}
.zig-body h2{font-size:clamp(20px,2.1vw,28px);margin-bottom:14px;}
.zig-body p{color:var(--text-2);font-size:16px;}
.zig-points{margin:18px 0 20px;display:flex;flex-direction:column;gap:10px;}
.zig-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.zig-points li i{color:var(--primary);margin-top:6px;font-size:12px;}

/* ---------- Mini matrix 2x2 ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);}
.mini-card{
  display:grid;grid-template-columns:170px minmax(0,1fr);
  gap:18px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;transition:all .18s ease;
}
.mini-card:hover{background:var(--panel-2);border-color:rgba(240,69,29,.4);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;}
.mini-card h3{font-size:18px;margin-bottom:8px;}
.mini-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:10px;}
.mini-card .text-link{font-size:14px;color:var(--primary-light);display:inline-flex;align-items:center;gap:7px;}
.mini-card .text-link i{font-size:11px;transition:transform .18s ease;}
.mini-card:hover .text-link i{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;color:var(--text);
  display:flex;align-items:center;gap:16px;
  min-height:64px;padding:14px 4px;text-align:left;font-size:17px;font-weight:700;
}
.faq-q .idx{
  flex:0 0 34px;height:34px;border-radius:8px;
  border:1px solid rgba(240,69,29,.5);color:var(--primary-light);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.faq-q .plus{margin-left:auto;color:var(--text-2);transition:transform .2s ease;font-size:15px;}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);color:var(--primary-light);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 4px 22px 50px;color:var(--text-2);font-size:15px;line-height:1.9;}
.faq-item.is-open .faq-a{max-height:400px;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:18px;border:1px solid var(--line);background:var(--panel);}
.cta-band::before{
  content:"";position:absolute;top:-40%;left:-10%;width:60%;height:180%;
  background:linear-gradient(135deg,rgba(255,90,31,.92),rgba(217,58,15,.25));
  transform:skewX(-14deg);
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:40px 44px;
  background:linear-gradient(90deg,rgba(13,14,17,.92) 0%,rgba(13,14,17,.74) 60%,rgba(13,14,17,.9) 100%);
}
.cta-inner h2{font-size:clamp(21px,2.3vw,30px);margin-bottom:10px;}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Footer ---------- */
.site-footer{background:#0A0B0E;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col summary{
  list-style:none;cursor:default;
  font-size:14px;color:var(--primary-light);letter-spacing:.06em;font-weight:700;margin-bottom:16px;
}
.footer-col summary::-webkit-details-marker{display:none;}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;}
.footer-links li a,.footer-contact li{
  display:flex;align-items:center;gap:9px;
  font-size:14px;color:var(--text-2);padding:7px 0;
}
.footer-links li a:hover{color:var(--primary-light);transform:translateX(-2px);}
.footer-contact li i{color:var(--primary);width:16px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  :root{--sec:64px;--gap:20px;}
  .container{padding:0 24px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero .hero-grid{grid-template-columns:1fr;gap:22px;padding:36px 0;}
  .cat-hero{min-height:0;}
  .zig{grid-template-columns:1fr;gap:22px;padding:28px 0;}
  .zig:nth-child(even) .zig-media{order:0;}
  .mini-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 28px;}
  .footer-col{border-bottom:1px solid var(--line);padding-bottom:6px;}
  .footer-col summary{cursor:pointer;margin:14px 0 6px;}
}
@media screen and (max-width:640px){
  :root{--sec:48px;--gap:16px;}
  .container{padding:0 18px;}
  body{font-size:16px;}
  .crumb-wrap{padding-top:92px;}
  .cat-hero h1{font-size:clamp(24px,7.4vw,32px);}
  .cta-inner{padding:28px 22px;}
  .cta-actions .btn{width:100%;}
  .mini-card{grid-template-columns:1fr;}
  .faq-a-inner{padding-left:4px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .hero-side{padding:16px;}
}

/* roulang page: category2 */
:root{
  --bg:#0D0E11;
  --bg-2:#14161A;
  --card:#191C21;
  --card-h:#1F232A;
  --primary:#F0451D;
  --primary-l:#FF6A3D;
  --primary-d:#C9330F;
  --accent:#17C3A2;
  --text:#F3F0E9;
  --text-2:#9A9CA3;
  --text-3:#6E7076;
  --line:rgba(255,255,255,.08);
  --success:#23C88B;
  --warn:#FFB020;
  --error:#FF4D4F;
  --r-card:14px;
  --r-sm:6px;
  --r-input:10px;
  --shadow:0 18px 40px -18px rgba(0,0,0,.75);
  --shadow-h:0 24px 52px -20px rgba(240,69,29,.35);
  --ease:180ms ease;
  --sec:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:16px;}
a:focus-visible,button:focus-visible,.chip:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:200;
  background:rgba(13,14,17,.94);
  transition:background var(--ease),border-color var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:#0D0E11;
  border-bottom-color:var(--line);
}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  transition:height var(--ease);
}
.site-header.is-scrolled .nav-inner{height:60px;}

.logo{
  display:flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
}
.logo-mark{
  width:38px;height:38px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  border-radius:10px;
  transform:skewX(-8deg);
  box-shadow:0 10px 22px -12px rgba(240,69,29,.9);
}
.logo-mark span{
  transform:skewX(8deg);
  font-size:13px;
  font-weight:800;
  color:#fff;
  letter-spacing:.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{
  font-size:16px;
  font-weight:800;
  color:var(--text);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo-text i{
  font-style:normal;
  font-size:11px;
  color:var(--text-3);
  letter-spacing:.06em;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{
  color:var(--primary-l);
  background:rgba(240,69,29,.12);
  font-weight:700;
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-cta{margin-left:12px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  text-align:center;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  color:#fff;
  box-shadow:0 12px 28px -14px rgba(240,69,29,.85);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 20px 36px -14px rgba(240,69,29,.95);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(240,69,29,.5);
  color:var(--primary-l);
}
.btn-ghost:hover{
  background:rgba(240,69,29,.12);
  color:var(--primary-l);
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary-l);
  font-size:15px;
  font-weight:700;
}
.text-link i{transition:transform var(--ease);font-size:13px;}
.text-link:hover i{transform:translateX(4px);}

/* ============ 汉堡与抽屉 ============ */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--card);
  color:var(--text);
  font-size:17px;
  cursor:pointer;
  transition:var(--ease);
}
.nav-toggle:hover{border-color:rgba(240,69,29,.5);color:var(--primary-l);}

.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:290;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;
  top:0;right:0;
  width:min(86vw,380px);
  height:100%;
  background:var(--bg-2);
  border-left:1px solid var(--line);
  z-index:300;
  transform:translateX(102%);
  transition:transform 260ms ease;
  display:flex;
  flex-direction:column;
  padding:20px 22px 26px;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-title{font-size:14px;color:var(--primary-l);letter-spacing:.14em;font-weight:700;}
.drawer-close{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--card);
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;
}
.drawer-close:hover{color:var(--primary-l);border-color:rgba(240,69,29,.5);}
.drawer-links{display:flex;flex-direction:column;padding-top:8px;flex:1;}
.drawer-links a{
  height:56px;
  display:flex;
  align-items:center;
  font-size:18px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--text);}
.drawer-links a.is-active{color:var(--primary-l);font-weight:700;}
.drawer-foot{padding-top:18px;}

/* ============ 主体容器 ============ */
main{padding-top:72px;display:block;}

/* ============ 面包屑 ============ */
.crumb-bar{padding:20px 0 0;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--text-3);}
.crumb a:hover{color:var(--primary-l);}
.crumb .current{color:var(--text);}

/* ============ 紧凑页头 ============ */
.page-head{
  position:relative;
  overflow:hidden;
  margin-top:16px;
  background:linear-gradient(118deg,#181B21 0%,#101216 62%,#0D0E11 100%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:38px 40px 40px;
}
.page-head::before{
  content:"";
  position:absolute;
  top:-40px;right:-90px;
  width:420px;height:260px;
  background:linear-gradient(135deg,rgba(240,69,29,.24),rgba(240,69,29,0) 72%);
  transform:skewX(-14deg);
  pointer-events:none;
}
.page-head::after{
  content:"";
  position:absolute;
  left:40px;bottom:22px;
  width:120px;height:3px;
  border-radius:2px;
  background:linear-gradient(90deg,#FF5A1F,#D93A0F);
}
.page-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:700;
  color:var(--accent);
  border:1px solid rgba(23,195,162,.35);
  border-radius:var(--r-sm);
  padding:5px 12px;
  background:rgba(23,195,162,.08);
  margin-bottom:16px;
}
.page-head h1{
  font-size:clamp(28px,3.4vw,44px);
  line-height:1.18;
  max-width:860px;
  margin-bottom:12px;
}
.page-head h1 em{
  font-style:normal;
  color:var(--primary-l);
}
.page-head .lead{
  font-size:16px;
  color:var(--text-2);
  max-width:720px;
  margin-bottom:0;
}
.head-stats{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:26px;
}
.head-stats div{display:flex;flex-direction:column;gap:2px;}
.head-stats b{
  font-size:20px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.3;
}
.head-stats span{font-size:12.5px;color:var(--text-3);letter-spacing:.03em;}

/* ============ 筛选条 ============ */
.filter-wrap{
  position:sticky;
  top:72px;
  z-index:90;
  background:rgba(13,14,17,.97);
  border-bottom:1px solid var(--line);
  margin-top:24px;
}
.filter-bar{
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 0;
  overflow-x:auto;
  scrollbar-width:thin;
}
.filter-bar::-webkit-scrollbar{height:6px;}
.filter-bar::-webkit-scrollbar-track{background:transparent;}
.filter-bar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:3px;}
.filter-bar::-webkit-scrollbar-thumb:hover{background:var(--primary);}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--text-2);
  font-size:14px;
  white-space:nowrap;
  transition:var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(240,69,29,.45);}
.chip.is-active{
  background:linear-gradient(135deg,#FF5A1F,#D93A0F);
  border-color:transparent;
  color:#fff;
  font-weight:700;
}
.chip i{font-size:12px;}

/* ============ 分区通用 ============ */
.section{padding:var(--sec) 0 0;}
.section.tight{padding-top:64px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,32px);
  line-height:1.3;
}
.section-head p{
  font-size:15px;
  color:var(--text-2);
  margin:10px 0 0;
  max-width:640px;
}

/* ============ 分组清单 ============ */
.group-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.group{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 20px 10px;
  box-shadow:var(--shadow);
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
  scroll-margin-top:150px;
}
.group:hover{
  border-color:rgba(240,69,29,.4);
  transform:translateY(-2px);
  box-shadow:var(--shadow-h);
}
.group-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:800;
  color:var(--primary-l);
  letter-spacing:.02em;
  padding-bottom:14px;
}
.group-title i{
  width:26px;height:26px;
  display:grid;
  place-items:center;
  border-radius:8px;
  background:rgba(240,69,29,.14);
  font-size:12px;
  color:var(--primary-l);
}
.group-title small{
  margin-left:auto;
  font-size:12px;
  font-weight:400;
  color:var(--text-3);
  letter-spacing:.04em;
}
.row-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 12px;
  border-top:1px solid var(--line);
  border-radius:8px;
  transition:background var(--ease);
}
.row-item::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:2px;
  background:var(--primary);
  opacity:0;
  transition:opacity var(--ease);
}
.row-item:hover{background:var(--card-h);}
.row-item:hover::before{opacity:1;}
.row-idx{
  flex:0 0 auto;
  width:30px;height:30px;
  display:grid;
  place-items:center;
  border:1px solid rgba(240,69,29,.45);
  border-radius:var(--r-sm);
  font-size:12px;
  font-weight:700;
  color:var(--primary-l);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.row-body{flex:1 1 auto;min-width:0;}
.row-body b{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}
.row-body span{
  display:block;
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
  margin-top:2px;
}
.row-meta{
  flex:0 0 auto;
  font-size:12.5px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
  padding-left:10px;
  white-space:nowrap;
}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat{
  background:var(--bg-2);
  padding:22px 24px;
  position:relative;
}
.stat::after{
  content:"";
  position:absolute;
  left:24px;bottom:16px;
  width:34px;height:2px;
  border-radius:2px;
  background:rgba(240,69,29,.6);
}
.stat b{
  display:block;
  font-size:26px;
  line-height:1.25;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.stat span{
  display:block;
  font-size:13px;
  color:var(--text-2);
  line-height:1.6;
}

/* ============ 图文提示块 ============ */
.tip-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:36px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:34px;
  box-shadow:var(--shadow);
}
.tip-text h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.tip-text p{color:var(--text-2);font-size:16px;}
.tip-media{
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.tip-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.tip-grid:hover .tip-media img{transform:scale(1.04);}
.tick-list{margin:18px 0 20px;}
.tick-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--text-2);
  padding:7px 0;
  line-height:1.7;
}
.tick-list li i{color:var(--accent);font-size:13px;margin-top:6px;}
.eyebrow-sm{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:700;
  color:var(--accent);
  margin-bottom:12px;
}

/* ============ FAQ ============ */
.faq-acc{
  border:none;
  background:transparent;
  margin:0;
  max-width:940px;
}
.faq-acc .accordion-item{
  border:none;
  border-top:1px solid var(--line);
  background:transparent;
}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-acc .accordion-title{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  min-height:64px;
  padding:14px 52px 14px 0;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  background:transparent;
  border:none;
  line-height:1.5;
  transition:color var(--ease);
}
.faq-acc .accordion-title:hover{color:var(--primary-l);background:transparent;}
.faq-acc .accordion-title::before{display:none !important;}
.faq-acc .accordion-title::after{
  content:"+";
  position:absolute;
  right:8px;
  top:50%;
  transform:translateY(-50%);
  font-size:24px;
  font-weight:400;
  line-height:1;
  color:var(--primary);
  transition:transform var(--ease);
}
.faq-acc .accordion-item.is-active .accordion-title::after{
  transform:translateY(-50%) rotate(45deg);
}
.faq-num{
  flex:0 0 auto;
  width:32px;height:32px;
  display:grid;
  place-items:center;
  border:1px solid rgba(240,69,29,.45);
  border-radius:var(--r-sm);
  font-size:12px;
  font-weight:700;
  color:var(--primary-l);
  font-variant-numeric:tabular-nums;
}
.faq-acc .accordion-content{
  padding:0 52px 22px 50px;
  background:transparent;
  border:none;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}
.faq-acc .accordion-content p{margin:0;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-card);
  border:1px solid rgba(240,69,29,.28);
  background:linear-gradient(115deg,#23120C 0%,#14161A 55%,#0F1114 100%);
  padding:44px 46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-70px;left:-40px;
  width:340px;height:280px;
  background:linear-gradient(135deg,rgba(240,69,29,.35),rgba(240,69,29,0) 70%);
  transform:skewX(-14deg);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,32px);
  margin-bottom:10px;
  position:relative;
}
.cta-band p{
  color:var(--text-2);
  font-size:15px;
  margin:0;
  position:relative;
  max-width:620px;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  position:relative;
  flex:0 0 auto;
}
.back-row{
  display:flex;
  justify-content:center;
  padding-top:28px;
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sec);
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-col{border:none;}
.footer-col>summary{
  list-style:none;
  cursor:default;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--primary);
  margin-bottom:16px;
}
.footer-col>summary::-webkit-details-marker{display:none;}
.footer-body{padding:0;}
.footer-brand p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
  margin-top:16px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14.5px;
  color:var(--text-2);
  display:inline-block;
  transition:color var(--ease),transform var(--ease);
}
.footer-links a:hover{color:var(--primary-l);transform:translateX(2px);}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:var(--text-2);
  margin-bottom:12px;
}
.footer-contact i{color:var(--primary);font-size:13px;margin-top:6px;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .container{padding:0 24px;}
  :root{--sec:64px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px;}
  .footer-col>summary{cursor:pointer;padding:12px 0;}
  .footer-col{border-bottom:1px solid var(--line);}
  .footer-body{padding-bottom:14px;}
  .group-grid{grid-template-columns:minmax(0,1fr);}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .tip-grid{grid-template-columns:minmax(0,1fr);gap:26px;padding:26px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .page-head{padding:30px 26px 34px;}
  .page-head::after{left:26px;}
}

@media screen and (max-width:640px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 18px;}
  :root{--sec:48px;}
  .logo-text i{display:none;}
  .logo-text b{font-size:15px;}
  .page-head h1{font-size:26px;}
  .page-head .lead{font-size:15px;}
  .head-stats{gap:18px;margin-top:20px;}
  .head-stats b{font-size:17px;}
  .filter-wrap{top:60px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .row-meta{display:none;}
  .row-item{padding:13px 8px;}
  .row-body b{font-size:15.5px;}
  .stat{padding:18px 18px;}
  .stat b{font-size:22px;}
  .stat::after{left:18px;bottom:12px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .faq-acc .accordion-content{padding:0 0 20px 50px;}
  .crumb-bar{padding-top:14px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;}
}