/* roulang page: index */
:root{
  --bg:#070C16;
  --bg-elev:#0C1424;
  --panel:rgba(14,23,42,.68);
  --glass-border:rgba(255,255,255,.12);
  --primary:#E9B949;
  --primary-strong:#FFD166;
  --leaf:#48C6A1;
  --berry:#FF7A8A;
  --text:#EAF0FA;
  --muted:#A7B3C8;
  --faint:#6D7A91;
  --line:rgba(255,255,255,.10);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --radius-lg:24px;
  --radius:18px;
  --radius-sm:14px;
  --sidebar:248px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;

  --bs-body-bg:#070C16;
  --bs-body-color:#EAF0FA;
  --bs-primary:#E9B949;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-border-radius:14px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#E9B949;
  --bs-link-hover-color:#FFD166;
  --bs-emphasis-color:#EAF0FA;
  --bs-secondary-color:#A7B3C8;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-strong);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(233,185,73,.3);color:#fff;}

/* ===== 左侧 App Shell ===== */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);z-index:1030;
  display:flex;flex-direction:column;gap:22px;
  padding:24px 18px 26px;
  background:linear-gradient(180deg,#080E1B 0%,#050A13 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.sidebar-brand{display:flex;align-items:center;gap:11px;padding:0 6px 20px;border-bottom:1px solid var(--line);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:18px;font-weight:700;color:#151004;
  background:linear-gradient(140deg,var(--primary-strong),var(--primary));
  box-shadow:0 0 22px rgba(233,185,73,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.35;}
.brand-text strong{font-size:14.5px;color:var(--text);letter-spacing:.01em;}
.brand-text span{font-size:11.5px;color:var(--faint);letter-spacing:.04em;}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;}
.sidebar-nav a{
  display:block;padding:11px 14px;border-radius:12px;
  border-left:3px solid transparent;
  font-size:14.5px;color:var(--muted);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.sidebar-nav a:hover,.sidebar-nav a:focus-visible{background:rgba(255,255,255,.05);color:var(--text);outline:none;}
.sidebar-nav a.active{
  background:rgba(233,185,73,.10);border-left-color:var(--primary);
  color:var(--primary-strong);font-weight:600;
}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;}
.sidebar-foot .btn-gold{width:100%;}
.sidebar-contact{font-size:12.5px;color:var(--faint);line-height:1.9;}
.sidebar-contact strong{display:block;color:var(--muted);font-size:12.5px;font-weight:600;}

/* ===== 移动端顶部栏 ===== */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:1040;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(8,14,27,.94);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;align-items:center;gap:9px;color:var(--text);font-weight:700;font-size:15px;}
.mobile-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px;font-size:15px;}
.menu-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s,background .2s;
}
.menu-toggle:hover{border-color:rgba(233,185,73,.5);background:rgba(233,185,73,.1);}
.menu-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.offcanvas.offcanvas-start{background:#080E1B;color:var(--text);border-right:1px solid var(--line);width:296px;}
.offcanvas .sidebar-nav{padding-top:8px;}
.offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}

/* ===== 主内容 ===== */
.app-main{margin-left:var(--sidebar);padding:34px 32px 0;min-height:100vh;}
.wrap{max-width:1320px;margin:0 auto;}

/* ===== 按钮 / 标签 ===== */
.btn-gold,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 26px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-gold{
  background:var(--primary);color:#151004;border:1px solid transparent;
  box-shadow:0 0 26px rgba(233,185,73,.32);
}
.btn-gold:hover{background:var(--primary-strong);color:#151004;transform:translateY(-1px);box-shadow:0 0 34px rgba(233,185,73,.52);}
.btn-gold:focus-visible{outline:2px solid var(--primary-strong);outline-offset:3px;}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--text);
  border:1px solid var(--glass-border);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(233,185,73,.55);color:var(--primary-strong);transform:translateY(-1px);}
.btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.btn-sm{padding:0 18px;min-height:42px;font-size:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  border:1px solid var(--glass-border);background:rgba(255,255,255,.04);
  color:var(--muted);font-size:13px;white-space:nowrap;
}
.badge-soft{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  border:1px solid rgba(233,185,73,.4);color:var(--primary);
  font-size:12px;line-height:1.7;background:rgba(233,185,73,.08);
}
.badge-leaf{border-color:rgba(72,198,161,.45);color:var(--leaf);background:rgba(72,198,161,.08);}
.kicker{
  display:inline-block;margin-bottom:12px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--primary);
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600;}
.link-arrow::after{content:"→";transition:transform .2s ease;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;border-radius:28px;
  border:1px solid var(--line);
  padding:58px 48px;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(7,12,22,.97) 0%,rgba(7,12,22,.90) 46%,rgba(7,12,22,.52) 100%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:44px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;
  padding:6px 14px 6px 10px;border-radius:999px;
  border:1px solid var(--glass-border);background:rgba(255,255,255,.05);
  font-size:12.5px;color:var(--muted);letter-spacing:.04em;
}
.clapper{
  width:16px;height:11px;border-radius:2px;flex:0 0 16px;
  background:repeating-linear-gradient(135deg,var(--primary) 0 4px,#151004 4px 8px);
}
.hero h1{font-size:clamp(30px,3.4vw,50px);line-height:1.18;font-weight:700;}
.hero-sub{margin-top:18px;max-width:620px;font-size:16.5px;color:var(--muted);line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--glass-border);
  background:var(--panel);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-lg);
}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-media .timecode{
  position:absolute;top:14px;left:14px;
  font-family:var(--font-mono);font-size:12px;color:#fff;
  background:rgba(7,12,22,.72);border:1px solid var(--glass-border);
  padding:3px 9px;border-radius:8px;letter-spacing:.05em;
}
.hero-media .shot-no{
  position:absolute;bottom:14px;left:14px;
  font-family:var(--font-mono);font-size:12px;color:var(--primary);
  background:rgba(7,12,22,.72);border:1px solid rgba(233,185,73,.4);
  padding:3px 9px;border-radius:8px;
}
.hero-media .play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:62px;height:62px;border-radius:50%;
  background:rgba(233,185,73,.92);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 34px rgba(233,185,73,.6);
}
.hero-media .play-btn::after{
  content:"";width:0;height:0;margin-left:4px;
  border-left:16px solid #151004;
  border-top:10px solid transparent;
  border-bottom:10px solid transparent;
}

/* ===== 板块通用 ===== */
.section{margin-top:88px;}
.section-head{max-width:820px;}
.section-head h2{font-size:clamp(24px,2.5vw,34px);line-height:1.3;font-weight:700;}
.section-desc{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85;}

/* ===== 服务 ===== */
.service-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:40px;}
.service-card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 28px 26px;display:flex;flex-direction:column;gap:12px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.service-card:nth-child(even){transform:translateY(16px);}
.service-card:hover{border-color:rgba(233,185,73,.45);box-shadow:var(--shadow-lg);}
.service-card:nth-child(even):hover{transform:translateY(12px);}
.service-card .num{font-family:var(--font-mono);font-size:13px;color:var(--primary);letter-spacing:.12em;}
.service-card h3{font-size:20px;line-height:1.4;}
.service-card p{color:var(--muted);font-size:15px;line-height:1.85;}

/* ===== 数据带 ===== */
.stats-band{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:44px 32px;position:relative;overflow:hidden;
}
.stats-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(233,185,73,.55),transparent);
}
.stats-band .kicker{display:block;text-align:center;}
.stats-band h2{text-align:center;font-size:clamp(22px,2.2vw,30px);}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:34px;}
.stat{text-align:center;padding:6px 14px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;}
.stat-num{display:block;font-family:var(--font-mono);font-size:clamp(30px,3vw,42px);font-weight:700;color:var(--primary);line-height:1.15;}
.stat-label{display:block;margin-top:8px;font-size:13.5px;color:var(--muted);}

/* ===== 流程 ===== */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;margin-top:40px;}
.step{
  position:relative;padding:26px 20px 24px;border-radius:var(--radius);
  background:var(--bg-elev);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease;
}
.step::before{
  content:"";position:absolute;top:0;left:20px;right:20px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.step:hover{transform:translateY(-4px);border-color:rgba(233,185,73,.4);}
.step-no{font-family:var(--font-mono);font-size:13px;color:var(--primary);letter-spacing:.12em;}
.step h3{font-size:17px;margin-top:8px;line-height:1.45;}
.step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8;}

/* ===== 案例 ===== */
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-top:40px;}
.case-card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.case-card:nth-child(even){margin-top:48px;}
.case-card:hover{border-color:rgba(233,185,73,.45);transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.case-thumb{position:relative;aspect-ratio:16/10;background:linear-gradient(140deg,#132038,#0A1220);overflow:hidden;}
.case-thumb img{width:100%;height:100%;object-fit:cover;}
.case-tag{position:absolute;top:14px;left:14px;}
.case-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;}
.case-body h3{font-size:20px;line-height:1.4;}
.case-body p{color:var(--muted);font-size:14.5px;line-height:1.8;}

/* ===== 方案 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:40px;}
.plan-card{
  position:relative;padding:34px 30px 30px;border-radius:var(--radius-lg);
  background:var(--bg-elev);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:16px;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.plan-card:hover{border-color:rgba(233,185,73,.4);transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.plan-card.featured{
  border-color:rgba(233,185,73,.55);
  background:linear-gradient(160deg,rgba(233,185,73,.10),var(--bg-elev) 58%);
}
.plan-badge{
  position:absolute;top:22px;right:22px;
  padding:3px 12px;border-radius:999px;
  background:var(--primary);color:#151004;font-size:12px;font-weight:700;
}
.plan-card h3{font-size:22px;}
.plan-for{font-size:13.5px;color:var(--faint);}
.plan-list{display:flex;flex-direction:column;gap:10px;}
.plan-list li{
  position:relative;padding-left:22px;font-size:14.8px;color:var(--muted);line-height:1.8;
}
.plan-list li::before{
  content:"";position:absolute;left:0;top:11px;width:10px;height:2px;border-radius:2px;background:var(--primary);
}
.plan-card .btn-gold,.plan-card .btn-ghost{margin-top:6px;align-self:flex-start;}

/* ===== 最新信息 ===== */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:36px;}
.news-card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-card:hover{border-color:rgba(233,185,73,.45);transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.news-link{display:flex;flex-direction:column;gap:10px;color:inherit;}
.news-link:hover{color:inherit;}
.news-title{font-size:18px;line-height:1.5;color:var(--text);}
.news-card:hover .news-title{color:var(--primary-strong);}
.news-excerpt{
  color:var(--muted);font-size:14.5px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:2px;}
.news-time{font-family:var(--font-mono);font-size:12.5px;color:var(--faint);letter-spacing:.03em;}
.empty-state{
  grid-column:1/-1;padding:44px 24px;text-align:center;border-radius:var(--radius);
  border:1px dashed var(--line);background:rgba(255,255,255,.02);
  color:var(--faint);font-size:14.5px;
}
.empty-state .empty-icon{
  display:block;font-family:var(--font-mono);font-size:22px;color:rgba(233,185,73,.6);margin-bottom:8px;
}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:48px;align-items:start;margin-top:8px;}
.faq-aside h2{font-size:clamp(24px,2.4vw,32px);line-height:1.32;}
.faq-aside p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.85;}
.faq-aside .link-arrow{margin-top:18px;}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-color:var(--text);--bs-accordion-border-color:var(--line);}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.accordion-item:first-of-type{border-top:1px solid var(--line);}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:600;line-height:1.55;
  padding:20px 48px 20px 20px;position:relative;
  box-shadow:none!important;border-radius:0;
}
.accordion-button:not(.collapsed){background:rgba(233,185,73,.06);color:var(--primary-strong);}
.accordion-button:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
.accordion-button::after{
  display:none;
}
.accordion-button::before{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-family:var(--font-mono);font-size:20px;color:var(--primary);line-height:1;
}
.accordion-button:not(.collapsed)::before{content:"−";}
.accordion-button:not(.collapsed)::after{
  display:block;content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:2px;background:var(--primary);
}
.accordion-body{padding:0 20px 22px 20px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ===== 联系 ===== */
.contact-card{
  margin-top:36px;border-radius:var(--radius-lg);
  background:var(--panel);backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-lg);
  padding:40px;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:44px;
}
.contact-card h2{font-size:clamp(23px,2.3vw,30px);line-height:1.35;}
.contact-note{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.85;}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{margin-top:16px;}
.form-label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:6px;}
.form-control,.form-select{
  width:100%;height:48px;padding:0 16px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.form-control{height:auto;min-height:118px;padding:12px 16px;line-height:1.75;resize:vertical;}
.form-control::placeholder{color:var(--faint);}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.05);border-color:var(--primary);color:var(--text);
  box-shadow:0 0 0 3px rgba(233,185,73,.16);outline:none;
}
.form-select option{background:#0C1424;color:#EAF0FA;}
.form-hint{margin-top:10px;font-size:12.5px;color:var(--faint);}
.contact-side{display:flex;flex-direction:column;gap:18px;padding-left:36px;border-left:1px solid var(--line);}
.contact-side h3{font-size:16px;color:var(--primary);}
.info-list{display:flex;flex-direction:column;gap:12px;}
.info-list li{font-size:14.5px;color:var(--muted);line-height:1.8;}
.info-list span{display:block;font-family:var(--font-mono);font-size:12px;color:var(--faint);letter-spacing:.06em;margin-bottom:2px;}

/* ===== 页脚 ===== */
.site-footer{margin-top:96px;border-top:1px solid var(--line);padding:48px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;}
.footer-brand strong{display:block;font-size:16px;color:var(--text);margin-bottom:12px;}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;max-width:400px;}
.footer-col h4{font-size:14px;color:var(--primary);margin-bottom:14px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{color:var(--muted);font-size:14px;}
.footer-col a:hover{color:var(--primary-strong);}
.footer-col li{color:var(--muted);font-size:14px;}
.footer-bottom{
  margin-top:36px;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(--faint);
}
.footer-bottom .mono{font-family:var(--font-mono);letter-spacing:.03em;}

/* 图片失败占位 */
.img-fail::after{
  content:attr(data-label);
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  padding:16px;text-align:center;color:var(--faint);font-size:14px;line-height:1.7;
  background:linear-gradient(140deg,#101B2E,#080E1B);
}

/* ===== 响应式 ===== */
@media (min-width:1200px) and (max-width:1399.98px){
  :root{--sidebar:232px;}
}
@media (min-width:992px) and (max-width:1199.98px){
  :root{--sidebar:208px;}
  .app-main{padding:26px 24px 0;}
  .hero{padding:44px 34px;}
  .contact-side{padding-left:26px;}
}
@media (max-width:991.98px){
  .app-sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .app-main{margin-left:0;padding:84px 20px 0;}
  .hero{padding:40px 26px;border-radius:22px;}
  .hero-inner{grid-template-columns:1fr;gap:30px;}
  .service-grid,.case-grid,.plan-grid,.news-grid{grid-template-columns:1fr;}
  .service-card:nth-child(even),.case-card:nth-child(even){transform:none;margin-top:0;}
  .service-card:nth-child(even):hover{transform:translateY(-4px);}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .contact-card{grid-template-columns:1fr;gap:30px;padding:30px 24px;}
  .contact-side{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{margin-top:64px;}
}
@media (max-width:767.98px){
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 12px;}
  .stat{border-left:0;}
  .stats-band{padding:32px 20px;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-sub{font-size:15.5px;}
  .btn-gold,.btn-ghost{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .plan-card .btn-gold,.plan-card .btn-ghost{width:100%;align-self:stretch;}
  .case-body{padding:20px;}
  .site-footer{margin-top:64px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .app-main{padding:76px 14px 0;}
  .hero{padding:32px 18px;}
  .steps{grid-template-columns:1fr;}
  .news-card{padding:20px;}
  .contact-card{padding:24px 18px;}
  .accordion-button{font-size:16px;padding:16px 42px 16px 14px;}
  .accordion-body{padding:0 14px 18px 14px;}
  .section{margin-top:52px;}
}

/* roulang page: article */
:root{
  --bg:#070C16;
  --bg-elev:#0C1424;
  --panel:rgba(14,23,42,.68);
  --glass-border:rgba(255,255,255,.12);
  --primary:#E9B949;
  --primary-strong:#FFD166;
  --leaf:#48C6A1;
  --berry:#FF7A8A;
  --text:#EAF0FA;
  --muted:#A7B3C8;
  --faint:#6D7A91;
  --line:rgba(255,255,255,.10);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --sidebar:248px;
  --bs-body-bg:#070C16;
  --bs-body-color:#EAF0FA;
  --bs-primary:#E9B949;
  --bs-border-color:rgba(255,255,255,.12);
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--bs-font-sans-serif);font-size:16.5px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(1100px 600px at 88% -10%,rgba(233,185,73,.10),transparent 60%),
                   radial-gradient(800px 500px at 10% 0%,rgba(72,198,161,.07),transparent 65%);
  background-attachment:fixed;
}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--primary-strong)}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.mono{font-family:var(--mono);letter-spacing:.02em}

/* ---------- 侧栏 App Shell ---------- */
.app-sidebar{
  position:fixed;inset:0 auto 0 0;width:var(--sidebar);z-index:1035;
  display:flex;flex-direction:column;
  padding:24px 18px 20px;
  background:#05090F;
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;padding:6px 8px 0}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--primary),#B98523);
  color:#11151D;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 0 26px rgba(233,185,73,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15.5px;font-weight:700;color:var(--text)}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--faint);letter-spacing:.06em;margin-top:4px;font-family:var(--mono)}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;margin-top:26px}
.sidebar-nav a{
  position:relative;display:block;padding:11px 14px 11px 16px;
  border-radius:12px;color:var(--muted);font-size:14.5px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.sidebar-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:3px;background:var(--primary);
  transition:transform .18s ease;
}
.sidebar-nav a:hover,.sidebar-nav a:focus-visible{background:rgba(255,255,255,.05);color:var(--text)}
.sidebar-nav a.active{background:rgba(255,255,255,.06);color:var(--primary);font-weight:600}
.sidebar-nav a.active::before{transform:translateY(-50%) scaleY(1)}
.sidebar-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line)}
.sidebar-foot .btn-glow{width:100%;justify-content:center}
.side-contact{margin-top:12px;font-size:11.5px;color:var(--faint);word-break:break-all}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
}
.btn-glow{background:var(--primary);color:#10131A;box-shadow:0 0 26px rgba(233,185,73,.32)}
.btn-glow:hover{background:var(--primary-strong);color:#10131A;transform:translateY(-1px);box-shadow:0 0 36px rgba(255,209,102,.45)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--glass-border);color:var(--text)}
.btn-ghost:hover{border-color:rgba(233,185,73,.55);background:rgba(255,255,255,.08);color:var(--text)}
.btn-glow[disabled],.btn-ghost[disabled]{opacity:.55;cursor:not-allowed;box-shadow:none}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:12px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px}
.link-arrow i{transition:transform .18s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 移动顶栏 ---------- */
.mobile-topbar{display:none}
.drawer{background:#080E1A;color:var(--text);width:290px;border-right:1px solid var(--line)}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer .offcanvas-title{font-size:15.5px;font-weight:700}
.drawer .offcanvas-body{padding:18px 16px;display:flex;flex-direction:column}
.btn-close-custom{background:none;border:0;color:var(--muted);font-size:20px;line-height:1;padding:6px}

/* ---------- 主内容 ---------- */
.main-content{margin-left:var(--sidebar);padding:36px 32px 0;min-height:100vh}
.wrap{max-width:1240px;margin:0 auto}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:22px}
.breadcrumb-bar a{color:var(--muted)}
.breadcrumb-bar a:hover{color:var(--primary)}
.breadcrumb-bar .sep{color:rgba(255,255,255,.22)}
.breadcrumb-bar .now{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{padding-bottom:28px;border-bottom:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  border:1px solid rgba(233,185,73,.35);color:var(--primary);background:rgba(233,185,73,.08);
}
.tag.tag-leaf{border-color:rgba(72,198,161,.35);color:var(--leaf);background:rgba(72,198,161,.08)}
.tag.tag-plain{border-color:var(--glass-border);color:var(--muted);background:rgba(255,255,255,.04)}
.article-title{font-size:40px;line-height:1.28;font-weight:700;max-width:900px;letter-spacing:0}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px;font-size:13px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--primary);font-size:12px}
.article-meta .mono{font-size:12.5px;color:var(--faint)}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:42px;align-items:start;padding-top:32px}
.article-main{min-width:0}

/* ---------- 摘要卡 ---------- */
.abstract-card{
  position:relative;background:var(--panel);border:1px solid var(--glass-border);
  border-radius:var(--radius-md);padding:24px 26px 24px 30px;margin-bottom:28px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 20px 60px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.06);
}
.abstract-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;background:var(--primary)}
.abstract-card h2{font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--primary);margin-bottom:10px;font-family:var(--mono)}
.abstract-card p{font-size:15.5px;color:var(--muted);line-height:1.9}

/* ---------- 封面 ---------- */
.cover-figure{margin:0 0 30px}
.cover-figure .frame{
  position:relative;aspect-ratio:16/9;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);background:linear-gradient(140deg,#12203A,#070C16);
}
.cover-figure img{width:100%;height:100%;object-fit:cover}
.cover-figure figcaption{margin-top:10px;font-size:12.5px;color:var(--faint);display:flex;align-items:center;gap:8px}
.cover-figure figcaption::before{content:"";width:16px;height:1px;background:var(--faint)}

/* ---------- 阅读面板 ---------- */
.reading-panel{
  background:#0B1220;border:1px solid var(--line);border-radius:20px;
  padding:38px 40px;box-shadow:var(--shadow-lg);
}
.article-body{font-size:17.5px;line-height:1.9;color:#DDE5F2;max-width:820px}
.article-body > * + *{margin-top:1.2em}
.article-body h2{font-size:26px;line-height:1.35;font-weight:650;margin-top:1.9em;padding-left:16px;position:relative;color:var(--text)}
.article-body h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--primary)}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin-top:1.6em;color:var(--text)}
.article-body h4{font-size:17px;font-weight:600;margin-top:1.4em;color:var(--primary)}
.article-body p{margin:0;color:#CBD6E6}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(233,185,73,.4)}
.article-body a:hover{color:var(--primary-strong);border-bottom-color:var(--primary-strong)}
.article-body ul,.article-body ol{padding-left:1.35em;color:#CBD6E6}
.article-body ul{list-style:none;padding-left:0}
.article-body ul > li{position:relative;padding-left:22px;margin:.55em 0}
.article-body ul > li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--primary);opacity:.85}
.article-body ol{list-style:decimal}
.article-body ol > li{margin:.55em 0;padding-left:4px}
.article-body ol > li::marker{color:var(--primary);font-family:var(--mono);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:rgba(233,185,73,.07);border-radius:0 14px 14px 0;color:#E4ECF8;
}
.article-body blockquote p{color:#E4ECF8}
.article-body img{border-radius:16px;margin:1.4em auto;border:1px solid var(--line)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:rgba(255,255,255,.05);color:var(--primary);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body code{font-family:var(--mono);font-size:.92em;background:rgba(255,255,255,.07);padding:2px 7px;border-radius:6px;color:var(--primary-strong)}
.article-body pre{background:#060B14;border:1px solid var(--line);border-radius:14px;padding:18px 20px;overflow:auto}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body strong{color:#FFFFFF}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--panel);border:1px dashed rgba(255,255,255,.18);
  border-radius:20px;padding:56px 30px;text-align:center;backdrop-filter:blur(12px);
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;display:grid;place-items:center;
  background:rgba(233,185,73,.12);color:var(--primary);font-size:24px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);max-width:460px;margin:0 auto 22px;font-size:15px}

/* ---------- 文末 ---------- */
.article-foot{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.foot-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 侧栏 ---------- */
.side-stack{position:sticky;top:32px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;transition:border-color .2s ease,transform .2s ease;
}
.side-card:hover{border-color:rgba(233,185,73,.45);transform:translateY(-3px)}
.side-card h2{font-size:13px;font-family:var(--mono);letter-spacing:.12em;color:var(--primary);margin-bottom:14px}
.side-card dl{margin:0;display:flex;flex-direction:column;gap:12px}
.side-card dt{font-size:12px;color:var(--faint);margin-bottom:2px}
.side-card dd{margin:0;font-size:14px;color:var(--text)}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--muted)}
.side-links a:hover{background:rgba(255,255,255,.05);color:var(--primary)}
.side-links a i{font-size:11px;color:var(--faint)}
.side-cta{background:var(--panel);border:1px solid rgba(233,185,73,.32);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.side-cta p{font-size:14px;color:var(--muted);margin-bottom:16px;line-height:1.75}
.side-cta h2{color:var(--primary-strong)}

/* ---------- 推荐 ---------- */
.section{margin-top:76px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:30px;font-weight:650}
.section-head p{font-size:14px;color:var(--faint);margin-top:8px}
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.reco-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-md);
  background:var(--bg-elev);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.reco-card:hover{transform:translateY(-4px);border-color:rgba(233,185,73,.45);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.reco-card .thumb{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,#12203A,#070C16)}
.reco-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.reco-card:hover .thumb img{transform:scale(1.03)}
.reco-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.reco-card h3{font-size:17px;line-height:1.5;font-weight:600}
.reco-card p{font-size:13.5px;color:var(--muted);line-height:1.75}
.reco-card .link-arrow{margin-top:auto;font-size:13.5px}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:76px;position:relative;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--glass-border);
  background:linear-gradient(115deg,rgba(14,23,42,.94) 0%,rgba(9,15,26,.9) 55%,rgba(233,185,73,.12) 100%);
  padding:46px 44px;box-shadow:var(--shadow-lg);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,185,73,.22),transparent 65%);pointer-events:none;
}
.cta-band h2{font-size:28px;font-weight:650;margin-bottom:12px}
.cta-band p{font-size:15.5px;color:var(--muted);max-width:560px;margin-bottom:24px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{margin-left:var(--sidebar);border-top:1px solid var(--line);background:#05090F;padding:48px 32px 26px}
.footer-inner{max-width:1240px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid var(--line)}
.footer-brand strong{font-size:16.5px;display:block;margin-bottom:12px;color:var(--text)}
.footer-brand p{font-size:13.5px;color:var(--faint);line-height:1.85;max-width:360px}
.footer-col h4{font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.1em;margin-bottom:14px;font-family:var(--mono)}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col li{font-size:13.5px;color:var(--faint)}
.footer-col a{color:var(--muted);font-size:13.5px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;font-size:12.5px;color:var(--faint)}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .wrap,.footer-inner{max-width:1320px}
}
@media (max-width:1199.98px){
  :root{--sidebar:232px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .side-stack{position:static;flex-direction:row;flex-wrap:wrap}
  .side-stack .side-card{flex:1 1 280px}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  :root{--sidebar:0px}
  .app-sidebar{display:none}
  .mobile-topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:sticky;top:0;z-index:1030;height:64px;padding:0 18px;
    background:rgba(5,9,15,.94);border-bottom:1px solid var(--line);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  }
  .brand-mini{font-size:15px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:9px}
  .brand-mini .dot{width:9px;height:9px;border-radius:3px;background:var(--primary);box-shadow:0 0 14px rgba(233,185,73,.7)}
  .burger{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);font-size:16px;display:grid;place-items:center}
  .burger:hover{border-color:rgba(233,185,73,.5);color:var(--primary)}
  .main-content{margin-left:0;padding:22px 18px 0}
  .site-footer{margin-left:0;padding:38px 18px 22px}
  .article-title{font-size:32px}
  .reading-panel{padding:24px 20px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19px}
  .cta-band{padding:32px 24px}
  .cta-band h2{font-size:24px}
  .section-head h2{font-size:25px}
  .section{margin-top:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767.98px){
  .article-title{font-size:28px}
  .reco-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .breadcrumb-bar .now{max-width:220px}
  .abstract-card{padding:20px 20px 20px 24px}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
}
@media (max-width:519.98px){
  body{font-size:16px}
  .article-title{font-size:25px}
  .article-meta{gap:12px}
  .reading-panel{padding:20px 16px;border-radius:16px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;padding-left:12px}
  .foot-actions .btn-glow,.foot-actions .btn-ghost{width:100%}
}

/* roulang page: category1 */
:root{
  --bg:#070C16;
  --bg-elev:#0C1424;
  --panel:rgba(14,23,42,.68);
  --glass-border:rgba(255,255,255,.12);
  --primary:#E9B949;
  --primary-strong:#FFD166;
  --leaf:#48C6A1;
  --berry:#FF7A8A;
  --text:#EAF0FA;
  --muted:#A7B3C8;
  --faint:#6D7A91;
  --line:rgba(255,255,255,.10);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:10px;
  --sidebar-w:248px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",SFMono-Regular,Consolas,"Courier New",monospace;
  --bs-body-bg:#070C16;
  --bs-body-color:#EAF0FA;
  --bs-primary:#E9B949;
  --bs-border-color:rgba(255,255,255,.12);
  --bs-border-radius:14px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#E9B949;
  --bs-link-hover-color:#FFD166;
  --bs-body-font-size:16px;
  --bs-body-line-height:1.8;
}
*,*::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-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.005em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-strong)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--primary-strong);outline-offset:3px;border-radius:6px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* App Shell */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#050A13;border-right:1px solid var(--line);
  padding:24px 18px 22px;display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;z-index:1040;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary-strong),#C7902A);
  color:#0A1020;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:13px;font-weight:800;
  box-shadow:0 0 22px rgba(233,185,73,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.005em}
.brand-text small{font-size:11.5px;color:var(--faint);letter-spacing:.08em}
.sidebar-label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--faint);padding:0 12px;margin-top:4px;
}
.sidebar-nav{display:flex;flex-direction:column;gap:3px}
.sidebar-nav a{
  display:block;padding:10px 12px;border-radius:10px;font-size:15px;
  color:var(--muted);border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.sidebar-nav a:hover,.sidebar-nav a:focus-visible{background:rgba(255,255,255,.06);color:var(--text)}
.sidebar-nav a.active{color:var(--primary);background:rgba(255,255,255,.05);border-left-color:var(--primary)}
.sidebar-foot{
  margin-top:auto;display:flex;flex-direction:column;gap:10px;
  padding-top:16px;border-top:1px solid var(--line);
}
.sidebar-foot p{font-size:12.5px;color:var(--faint);margin:0;line-height:1.7}

.mobile-topbar{
  display:none;align-items:center;justify-content:space-between;gap:12px;
  height:64px;padding:0 18px;background:rgba(5,10,19,.95);
  border-bottom:1px solid var(--line);backdrop-filter:blur(12px);
}
.topbar-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--glass-border);
  background:rgba(255,255,255,.05);color:var(--text);display:grid;place-items:center;
  font-size:18px;line-height:1;cursor:pointer;transition:border-color .18s,color .18s,background .18s;
}
.topbar-toggle:hover{border-color:rgba(233,185,73,.55);color:var(--primary);background:rgba(255,255,255,.09)}

.offcanvas.dark-drawer{background:#060B15;color:var(--text);border-right:1px solid var(--line);width:288px}
.offcanvas.dark-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px}
.offcanvas.dark-drawer .offcanvas-body{display:flex;flex-direction:column;gap:16px;padding:18px}
.btn-close{filter:invert(1) grayscale(1) brightness(1.7);opacity:.8}
.btn-close:hover{opacity:1}

.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;min-width:0}
.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section + .section{padding-top:0}

/* Buttons */
.btn-gold,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--r-md);
  font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-gold{background:var(--primary);color:#0A1020;box-shadow:0 0 26px rgba(233,185,73,.32)}
.btn-gold:hover{background:var(--primary-strong);color:#0A1020;transform:translateY(-1px);box-shadow:0 0 34px rgba(233,185,73,.46)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--glass-border);color:var(--text)}
.btn-ghost:hover{border-color:rgba(233,185,73,.6);background:rgba(255,255,255,.09);color:var(--primary-strong);transform:translateY(-1px)}
.btn-gold.sm,.btn-ghost.sm{height:44px;padding:0 18px;font-size:14px}
.btn-gold.is-disabled,.btn-ghost.is-disabled{opacity:.55;pointer-events:none}

/* Hero */
.page-hero{
  position:relative;padding:72px 0 76px;
  background-image:linear-gradient(96deg,rgba(7,12,22,.97) 0%,rgba(7,12,22,.88) 44%,rgba(7,12,22,.42) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;background-repeat:no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(233,185,73,.5),transparent);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--faint);margin-bottom:24px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:var(--faint);opacity:.7}
.crumbs .current{color:var(--primary)}
.slate{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.14em;color:var(--faint);margin-bottom:18px;
}
.slate::before{
  content:"";width:36px;height:10px;border-radius:2px;
  background:repeating-linear-gradient(135deg,var(--primary) 0 6px,#111A2B 6px 12px);
}
.page-hero h1{font-size:clamp(34px,4.4vw,58px);line-height:1.12;margin-bottom:20px;max-width:900px}
.page-hero .lede{max-width:780px;color:var(--muted);font-size:17.5px;line-height:1.85}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  border:1px solid var(--glass-border);background:rgba(255,255,255,.04);
  font-size:12.5px;color:var(--muted);line-height:1.6;
}
.tag.gold{color:var(--primary);border-color:rgba(233,185,73,.45);background:rgba(233,185,73,.09)}
.tag.leaf{color:var(--leaf);border-color:rgba(72,198,161,.4);background:rgba(72,198,161,.08)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* Stat strip */
.stat-strip{
  padding:38px 0;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,20,36,.92),rgba(7,12,22,.92));
  position:relative;
}
.stat-strip::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(233,185,73,.42),rgba(72,198,161,.22),transparent);
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{padding-left:18px;border-left:2px solid rgba(233,185,73,.28);min-width:0}
.stat b{display:block;font-family:var(--font-mono);font-size:clamp(24px,2.8vw,36px);color:var(--primary);font-weight:700;line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.6}

/* Section head */
.sec-head{max-width:780px;margin-bottom:44px}
.sec-head .eyebrow{
  display:block;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;
  color:var(--primary);margin-bottom:12px;
}
.sec-head h2{font-size:clamp(26px,3vw,36px);margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:16.5px;margin:0}

/* Intro two column */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start}
.intro-copy h2{font-size:clamp(26px,3vw,36px);margin-bottom:18px}
.intro-copy p{color:var(--muted);font-size:16.5px;line-height:1.9;max-width:780px}
.check-list{display:grid;gap:12px;margin-top:28px}
.check-list li{position:relative;padding-left:30px;color:var(--text);font-size:15.5px;line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--leaf);border-bottom:2px solid var(--leaf);
  transform:rotate(-45deg);
}
.media-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--glass-border);box-shadow:var(--shadow-lg);
  background:linear-gradient(150deg,#132038,#070C16);aspect-ratio:4/3;
}
.media-card img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.media-fallback{
  position:absolute;inset:0;z-index:0;display:grid;place-items:center;
  color:var(--faint);font-size:14px;letter-spacing:.14em;text-align:center;padding:20px;
}
.media-badge{
  position:absolute;left:16px;top:16px;z-index:2;display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;background:rgba(7,12,22,.74);
  border:1px solid rgba(233,185,73,.42);color:var(--primary);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;backdrop-filter:blur(8px);
}
.media-note{
  margin-top:14px;font-size:13px;color:var(--faint);
  display:flex;align-items:center;gap:8px;font-family:var(--font-mono);letter-spacing:.04em;
}

/* Info rows */
.info-rows{display:grid;gap:16px}
.info-row{
  display:grid;grid-template-columns:78px 1fr 210px;gap:24px;align-items:center;
  padding:26px;background:var(--bg-elev);border:1px solid var(--line);
  border-radius:var(--r-lg);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.info-row:hover{border-color:rgba(233,185,73,.45);transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.info-row .num{font-family:var(--font-mono);font-size:24px;color:var(--primary);font-weight:700;line-height:1}
.info-row h3{font-size:19px;margin-bottom:6px}
.info-row p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}
.info-row .meta{
  font-family:var(--font-mono);font-size:12.5px;color:var(--faint);
  text-align:right;letter-spacing:.06em;line-height:1.7;
}

/* Spec cards */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.spec-card{
  padding:30px;border-radius:var(--r-xl);background:var(--bg-elev);
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.spec-card:hover{border-color:rgba(233,185,73,.42);transform:translateY(-4px);box-shadow:0 20px 48px rgba(0,0,0,.38)}
.spec-card.hl{
  border-color:rgba(233,185,73,.45);
  background:linear-gradient(160deg,rgba(233,185,73,.10),rgba(12,20,36,.95) 62%);
}
.spec-card h3{
  font-size:20px;margin-bottom:8px;display:flex;align-items:center;gap:10px;
}
.spec-card .spec-sub{font-size:13.5px;color:var(--faint);margin:0 0 18px;font-family:var(--font-mono);letter-spacing:.05em}
.dot-list{display:grid;gap:10px}
.dot-list li{position:relative;padding-left:20px;color:var(--muted);font-size:15px;line-height:1.75}
.dot-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:2px;background:var(--primary)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:48px;align-items:start}
.faq-aside h2{font-size:clamp(26px,3vw,34px);margin-bottom:14px}
.faq-aside p{color:var(--muted);font-size:15.5px;max-width:340px}
.faq-aside .faq-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-weight:600;font-size:15px}
.faq-aside .faq-link:hover{gap:10px}
.accordion{
  --bs-accordion-bg:transparent;
  --bs-accordion-color:var(--text);
  --bs-accordion-border-color:transparent;
  --bs-accordion-border-width:0;
  --bs-accordion-btn-color:var(--text);
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-active-color:var(--primary);
  --bs-accordion-active-bg:rgba(233,185,73,.07);
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-transition:none;
}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:first-of-type{border-top-left-radius:0;border-top-right-radius:0}
.accordion-button{
  position:relative;background:transparent;color:var(--text);font-size:17px;font-weight:600;
  padding:18px 52px 18px 16px;border-radius:12px;box-shadow:none;line-height:1.5;
}
.accordion-button:not(.collapsed){
  color:var(--primary);background:rgba(233,185,73,.07);
  box-shadow:inset 3px 0 0 var(--primary);
}
.accordion-button:focus{box-shadow:inset 3px 0 0 var(--primary)}
.accordion-button::after{
  content:"+";background-image:none;position:absolute;right:16px;top:50%;
  width:24px;height:24px;margin-top:-12px;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:19px;line-height:1;color:var(--primary);
  transform:none;transition:color .18s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none}
.accordion-body{padding:2px 52px 20px 16px;color:var(--muted);font-size:15.5px;line-height:1.85}

/* CTA */
.cta-card{
  position:relative;overflow:hidden;border-radius:28px;padding:52px;
  background:linear-gradient(135deg,rgba(233,185,73,.15),rgba(12,20,36,.9) 48%,rgba(7,12,22,.96));
  border:1px solid rgba(233,185,73,.34);box-shadow:var(--shadow-lg);
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,185,73,.18),transparent 68%);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.cta-card h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-card p{color:var(--muted);font-size:16px;max-width:560px}
.contact-list{display:grid;gap:12px;font-size:15px;color:var(--muted)}
.contact-list li{display:flex;gap:10px;align-items:baseline}
.contact-list li span{color:var(--faint);font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;min-width:58px}
.contact-list strong{color:var(--text);font-weight:600}

/* Footer */
.site-footer{
  padding-top:56px;padding-bottom:26px;margin-top:auto;
  border-top:1px solid var(--line);background:#050A13;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px}
.footer-brand strong{display:block;font-size:17px;margin-bottom:12px;color:var(--text)}
.footer-brand p{color:var(--faint);font-size:14px;line-height:1.8;max-width:420px;margin:0}
.footer-col h4{font-size:13.5px;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;font-weight:600}
.footer-col ul{display:grid;gap:9px;font-size:14px;color:var(--faint)}
.footer-col a{color:var(--faint)}
.footer-col a:hover,.footer-col a:focus-visible{color:var(--primary)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--faint);
}

/* Responsive */
@media (max-width:1399px){
  .wrap{max-width:1320px}
}
@media (max-width:1199px){
  :root{--sidebar-w:232px}
  .wrap{padding:0 24px}
  .intro-grid{gap:36px}
  .faq-grid{gap:34px}
  .cta-inner{gap:30px}
  .info-row{grid-template-columns:64px 1fr 180px;gap:20px}
}
@media (max-width:991px){
  :root{--sidebar-w:208px}
  .sidebar{display:none}
  .mobile-topbar{display:flex;position:fixed;top:0;left:0;right:0;z-index:1035}
  .main{margin-left:0;padding-top:64px}
  .section{padding:64px 0}
  .section + .section{padding-top:0}
  .page-hero{padding:44px 0 52px;background-position:center}
  .intro-grid,.faq-grid,.spec-grid,.cta-inner{grid-template-columns:1fr}
  .intro-grid{gap:32px}
  .info-row{grid-template-columns:56px 1fr;gap:14px 16px}
  .info-row .meta{grid-column:2;text-align:left}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .media-card{aspect-ratio:16/10}
  .faq-aside p{max-width:none}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .section{padding:56px 0}
  .page-hero h1{font-size:34px}
  .page-hero .lede{font-size:16px}
  .sec-head{margin-bottom:30px}
  .cta-card{padding:30px;border-radius:22px}
  .cta-row{flex-direction:column;align-items:stretch}
  .btn-gold,.btn-ghost{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .accordion-button{font-size:16px;padding:16px 46px 16px 14px}
  .accordion-body{padding:0 46px 18px 14px}
}
@media (max-width:520px){
  .page-hero h1{font-size:30px}
  .info-row{padding:18px}
  .spec-card{padding:22px}
  .cta-card{padding:24px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat{padding-left:12px}
  .stat b{font-size:22px}
  .stat span{font-size:12.5px}
}

/* roulang page: category2 */
:root{
  --bg:#070C16;
  --bg-elev:#0C1424;
  --panel:rgba(14,23,42,0.68);
  --glass-border:rgba(255,255,255,0.12);
  --primary:#E9B949;
  --primary-strong:#FFD166;
  --leaf:#48C6A1;
  --berry:#FF7A8A;
  --text:#EAF0FA;
  --muted:#A7B3C8;
  --faint:#6D7A91;
  --line:rgba(255,255,255,0.10);
  --shadow-lg:0 24px 70px rgba(0,0,0,0.45);
  --radius-lg:24px;
  --radius:18px;
  --sidebar-w:248px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --bs-body-bg:#070C16;
  --bs-body-color:#EAF0FA;
  --bs-primary:#E9B949;
  --bs-border-color:rgba(255,255,255,0.12);
  --bs-border-radius:18px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-link-color:#E9B949;
  --bs-link-hover-color:#FFD166;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 84% -8%, rgba(233,185,73,0.09), transparent 62%),
    radial-gradient(720px 460px at -6% 102%, rgba(72,198,161,0.07), transparent 66%);
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-strong)}
h1,h2,h3,h4{margin:0;letter-spacing:0.005em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.mono{font-family:var(--font-mono);letter-spacing:0.04em}

/* ---------- 侧栏 App Shell ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:linear-gradient(180deg,#060A14 0%,#080E1B 60%,#050910 100%);
  border-right:1px solid var(--line);
  z-index:1040;
  display:flex;
  flex-direction:column;
}
.sidebar-inner{
  padding:24px 18px 22px;
  display:flex;
  flex-direction:column;
  height:100%;
  overflow-y:auto;
  scrollbar-width:thin;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  padding:6px 6px 20px;
  text-decoration:none;
  border-bottom:1px solid var(--line);
  margin-bottom:20px;
}
.brand-mark{
  width:42px;height:42px;
  flex:none;
  border-radius:13px;
  background:linear-gradient(140deg,#FFD166,#E9B949 68%,#C79A2F);
  color:#1A1408;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:14px;
  display:grid;
  place-items:center;
  position:relative;
  box-shadow:0 0 20px rgba(233,185,73,0.28);
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:8px;right:8px;bottom:8px;
  height:3px;
  border-radius:2px;
  background:repeating-linear-gradient(90deg,rgba(26,20,8,.85) 0 4px,transparent 4px 8px);
  opacity:.55;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:var(--text);letter-spacing:0.01em}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--faint);letter-spacing:0.06em;margin-top:3px}
.sidebar-nav{display:flex;flex-direction:column;gap:4px}
.sidebar-nav a{
  position:relative;
  display:block;
  padding:11px 16px 11px 18px;
  border-radius:12px;
  color:var(--muted);
  font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.sidebar-nav a:hover,.sidebar-nav a:focus-visible{
  background:rgba(255,255,255,0.05);
  color:var(--text);
}
.sidebar-nav a.active{
  background:rgba(255,255,255,0.06);
  color:var(--primary-strong);
  font-weight:600;
}
.sidebar-nav a.active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(233,185,73,0.65);
}
.sidebar-cta{
  margin-top:auto;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.sidebar-cta p{
  font-size:12.5px;
  color:var(--faint);
  line-height:1.7;
  margin-bottom:12px;
}
.btn-side{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  height:44px;
  border-radius:12px;
  border:1px solid rgba(233,185,73,0.45);
  background:rgba(233,185,73,0.10);
  color:var(--primary-strong);
  font-size:14.5px;
  font-weight:600;
  transition:all .2s ease;
}
.btn-side:hover{
  background:rgba(233,185,73,0.18);
  border-color:rgba(233,185,73,0.7);
  color:#FFE3A0;
}
.sidebar-contact{
  margin-top:14px;
  display:grid;
  gap:5px;
  font-size:12px;
  color:var(--faint);
  font-family:var(--font-mono);
}
.sidebar-contact a{color:var(--muted)}
.sidebar-contact a:hover{color:var(--primary)}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  z-index:1030;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(7,12,22,0.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar .brand{padding:0;border:0;margin:0}
.topbar .brand-mark{width:36px;height:36px;font-size:12px;border-radius:11px}
.topbar .brand-text strong{font-size:14px}
.topbar .brand-text em{display:none}
.hamburger{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,0.04);
  color:var(--text);
  display:grid;
  place-items:center;
  font-size:17px;
}
.hamburger:hover{border-color:rgba(233,185,73,0.55);color:var(--primary-strong)}
.offcanvas{
  background:#0A1220;
  color:var(--text);
  border-right:1px solid var(--line);
  width:288px;
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-title{font-size:15px;font-weight:700}
.offcanvas-body{padding:18px 16px 24px;display:flex;flex-direction:column;height:calc(100% - 66px)}
.btn-close{filter:invert(1) grayscale(1) brightness(1.6)}

/* ---------- 主内容 ---------- */
.main{
  position:relative;
  z-index:1;
  margin-left:var(--sidebar-w);
  min-height:100vh;
}
.wrap{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:50px;
  padding:0 24px;
  border-radius:14px;
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-glow{
  background:linear-gradient(180deg,#FFD166,#E9B949);
  color:#171207;
  border-color:rgba(255,209,102,0.65);
  box-shadow:0 0 26px rgba(233,185,73,0.32);
}
.btn-glow:hover{
  background:linear-gradient(180deg,#FFE093,#F2C75C);
  color:#171207;
  transform:translateY(-1px);
  box-shadow:0 0 36px rgba(233,185,73,0.52);
}
.btn-ghost{
  background:rgba(255,255,255,0.04);
  border-color:var(--glass-border);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(233,185,73,0.55);
  background:rgba(233,185,73,0.08);
  color:var(--primary-strong);
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--faint);
  margin-bottom:20px;
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:rgba(255,255,255,0.22)}
.crumbs span.current{color:var(--primary)}

/* ---------- Hero ---------- */
.page-hero{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(0,0.88fr);
  gap:44px;
  align-items:center;
  padding:42px 0 34px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0.12em;
  color:var(--primary);
  text-transform:uppercase;
  padding:6px 12px;
  border:1px solid rgba(233,185,73,0.28);
  border-radius:999px;
  background:rgba(233,185,73,0.07);
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(34px,4.4vw,56px);
  line-height:1.15;
  font-weight:700;
  margin-bottom:18px;
}
.page-hero h1 .accent{
  color:var(--primary);
  position:relative;
}
.page-hero .lead{
  font-size:17.5px;
  color:var(--text);
  line-height:1.85;
  max-width:640px;
  margin-bottom:14px;
}
.page-hero .sub{
  font-size:15.5px;
  color:var(--muted);
  line-height:1.85;
  max-width:640px;
  margin-bottom:26px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:26px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  list-style:none;
}
.hero-tags li{
  font-size:13px;
  color:var(--muted);
  padding:6px 13px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
}
.hero-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--glass-border);
  background:var(--bg-elev);
  box-shadow:var(--shadow-lg);
  aspect-ratio:4/3;
}
.hero-media img{
  position:relative;
  z-index:1;
  width:100%;height:100%;
  object-fit:cover;
}
.hero-media::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  background:linear-gradient(180deg,rgba(7,12,22,0.05) 40%,rgba(7,12,22,0.78) 100%);
  pointer-events:none;
}
.hero-media::after{
  content:"黄果草莓AI短剧";
  position:absolute;
  inset:0;
  z-index:0;
  display:grid;
  place-items:center;
  font-size:14px;
  letter-spacing:0.12em;
  color:var(--faint);
  background:linear-gradient(135deg,#101A2E,#0A1120);
}
.hero-media .img-fail{opacity:0}
.media-meta{
  position:absolute;
  z-index:3;
  left:16px;right:16px;bottom:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:rgba(234,240,250,0.82);
  letter-spacing:0.08em;
}
.media-meta .dot{
  display:inline-block;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--berry);
  box-shadow:0 0 10px rgba(255,122,138,0.8);
  margin-right:6px;
  vertical-align:middle;
}

/* ---------- 快讯条 ---------- */
.ticker{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:rgba(12,20,36,0.6);
  margin-top:6px;
}
.ticker > div{
  padding:16px 20px;
  border-right:1px solid var(--line);
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.ticker > div:last-child{border-right:0}
.ticker b{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:0.1em;
  color:var(--primary);
  margin-bottom:4px;
}

/* ---------- 板块 ---------- */
.section{padding:76px 0 0}
.section-head{max-width:820px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(26px,3vw,34px);
  line-height:1.28;
  font-weight:650;
  margin:10px 0 14px;
}
.section-head p{
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
  max-width:780px;
}

/* ---------- 流程时间线 ---------- */
.flow-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 336px;
  gap:44px;
  align-items:start;
}
.timeline{
  list-style:none;
  position:relative;
  padding-left:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:27px;
  top:14px;
  bottom:14px;
  width:1px;
  background:linear-gradient(180deg,rgba(233,185,73,0.55),rgba(233,185,73,0.06));
}
.timeline li{
  position:relative;
  padding:0 0 32px 78px;
}
.timeline li:last-child{padding-bottom:0}
.step-no{
  position:absolute;
  left:0;top:0;
  width:56px;height:56px;
  border-radius:16px;
  display:grid;
  place-items:center;
  font-family:var(--font-mono);
  font-size:16px;
  font-weight:600;
  color:var(--primary);
  background:rgba(233,185,73,0.08);
  border:1px solid rgba(233,185,73,0.3);
  box-shadow:0 0 20px rgba(233,185,73,0.10);
}
.timeline h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:8px;
  padding-top:6px;
}
.timeline p{
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
  max-width:660px;
}
.sticky-card{
  position:sticky;
  top:28px;
  border-radius:var(--radius-lg);
  background:var(--panel);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);
  padding:26px 24px;
  box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,0.06);
}
.sticky-card h3{
  font-size:17px;
  font-weight:650;
  margin-bottom:6px;
}
.sticky-card .sc-note{
  font-size:13px;
  color:var(--faint);
  font-family:var(--font-mono);
  letter-spacing:0.06em;
  margin-bottom:18px;
}
.sc-list{list-style:none;display:grid;gap:14px;margin-bottom:22px}
.sc-list li{
  display:flex;
  justify-content:space-between;
  gap:14px;
  align-items:baseline;
  padding-bottom:13px;
  border-bottom:1px dashed rgba(255,255,255,0.09);
  font-size:14.5px;
}
.sc-list li:last-child{border-bottom:0;padding-bottom:0}
.sc-list .k{color:var(--muted);white-space:nowrap}
.sc-list .v{color:var(--text);font-weight:600;text-align:right;font-family:var(--font-mono);font-size:13.5px}

/* ---------- 题材要素信息条 ---------- */
.element-list{display:grid;gap:14px}
.element-row{
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:18px;
  align-items:center;
  padding:20px 24px;
  border-radius:var(--radius);
  background:rgba(12,20,36,0.72);
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.element-row:hover{
  border-color:rgba(233,185,73,0.45);
  transform:translateY(-3px);
  box-shadow:var(--shadow-lg);
}
.element-row .code{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--primary);
  letter-spacing:0.08em;
  border-right:1px solid var(--line);
  padding-right:14px;
}
.element-row h3{font-size:17.5px;font-weight:600;margin-bottom:4px}
.element-row p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 场景卡 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  border-radius:var(--radius-lg);
  background:var(--bg-elev);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.scene-card:hover{
  border-color:rgba(233,185,73,0.45);
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
.media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(135deg,#101A2E,#0A1120);
}
.media::after{
  content:"黄果草莓AI短剧";
  position:absolute;
  inset:0;
  z-index:0;
  display:grid;
  place-items:center;
  font-size:13px;
  letter-spacing:0.14em;
  color:var(--faint);
}
.media img{
  position:relative;
  z-index:1;
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.scene-card:hover .media img{transform:scale(1.03)}
.media .img-fail{opacity:0}
.scene-body{padding:24px 24px 26px}
.tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:0.06em;
  color:var(--leaf);
  border:1px solid rgba(72,198,161,0.35);
  background:rgba(72,198,161,0.08);
  border-radius:999px;
  padding:4px 11px;
  margin-bottom:12px;
}
.scene-body h3{font-size:19px;font-weight:600;margin-bottom:8px;line-height:1.45}
.scene-body p{font-size:14.8px;color:var(--muted);line-height:1.8;margin-bottom:14px}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,0.72fr) minmax(0,1.28fr);
  gap:44px;
  align-items:start;
}
.faq-intro h2{font-size:clamp(26px,3vw,34px);line-height:1.28;font-weight:650;margin:10px 0 14px}
.faq-intro p{color:var(--muted);font-size:15.5px;line-height:1.85;margin-bottom:20px;max-width:420px}
.faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-header{margin:0}
.faq .accordion-button{
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  padding:20px 46px 20px 20px;
  border-radius:10px;
  box-shadow:none;
}
.faq .accordion-button:not(.collapsed){
  background:rgba(233,185,73,0.06);
  color:var(--primary-strong);
  box-shadow:inset 3px 0 0 var(--primary);
}
.faq .accordion-button:focus{
  border-color:transparent;
  box-shadow:inset 3px 0 0 var(--primary);
}
.faq .accordion-button::after{
  background-image:none;
  content:"+";
  width:26px;height:26px;
  display:grid;
  place-items:center;
  font-size:20px;
  line-height:1;
  color:var(--primary);
  margin-left:auto;
  transition:transform .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:none;
}
.faq .accordion-body{
  padding:0 20px 22px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
  max-width:720px;
}

/* ---------- 页尾 CTA ---------- */
.cta-panel{
  position:relative;
  margin-top:12px;
  border-radius:var(--radius-lg);
  border:1px solid var(--glass-border);
  background:var(--panel);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,0.06);
  padding:42px 40px;
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,0.75fr);
  gap:36px;
  align-items:center;
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:240px;height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(233,185,73,0.14),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,2.7vw,31px);line-height:1.3;font-weight:650;margin-bottom:12px}
.cta-panel p{color:var(--muted);font-size:15.5px;line-height:1.85;max-width:560px;margin-bottom:22px}
.cta-info{
  display:grid;
  gap:12px;
  border-left:1px solid var(--line);
  padding-left:32px;
  position:relative;
  z-index:1;
}
.cta-info div{font-size:14px;color:var(--muted)}
.cta-info b{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:0.1em;
  color:var(--primary);
  font-weight:600;
  margin-bottom:2px;
}
.cta-info a{color:var(--text)}
.cta-info a:hover{color:var(--primary-strong)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:84px;
  border-top:1px solid var(--line);
  padding-top:56px;
  padding-bottom:0;
  background:linear-gradient(180deg,rgba(12,20,36,0.55),rgba(7,12,22,0));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:40px;
}
.footer-brand strong{font-size:18px;color:var(--text);letter-spacing:0.01em}
.footer-brand p{
  margin-top:12px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.85;
  max-width:420px;
}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:0.1em;
  color:var(--primary);
  margin-bottom:14px;
}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col li{font-size:14.5px;color:var(--muted)}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:var(--primary-strong)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:42px;
  padding:20px 0 32px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--faint);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .wrap{max-width:1180px}
}
@media (max-width:1199.98px){
  :root{--sidebar-w:224px}
  .flow-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
  .cta-panel{grid-template-columns:1fr;gap:26px}
  .cta-info{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:22px;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
}
@media (max-width:991.98px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:64px}
  .wrap{padding-left:22px;padding-right:22px}
  .page-hero{grid-template-columns:1fr;gap:30px;padding:28px 0 26px}
  .page-hero .lead,.page-hero .sub{max-width:none}
  .hero-media{aspect-ratio:16/9}
  .flow-layout{grid-template-columns:1fr;gap:30px}
  .sticky-card{position:static}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .section{padding:56px 0 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
  .site-footer{margin-top:64px;padding-top:44px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .ticker{grid-template-columns:1fr}
  .ticker > div{border-right:0;border-bottom:1px solid var(--line)}
  .ticker > div:last-child{border-bottom:0}
  .scene-grid{grid-template-columns:1fr}
  .element-row{grid-template-columns:1fr;gap:10px;padding:18px}
  .element-row .code{border-right:0;padding-right:0;border-bottom:1px solid var(--line);padding-bottom:8px}
  .timeline li{padding-left:70px}
  .timeline::before{left:24px}
  .step-no{width:50px;height:50px;font-size:14px;border-radius:14px}
  .cta-panel{padding:28px 22px}
  .cta-info{grid-template-columns:1fr}
  .faq .accordion-button{font-size:16px;padding:16px 40px 16px 14px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:575.98px){
  .wrap{padding-left:16px;padding-right:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .page-hero h1{font-size:clamp(30px,8vw,38px)}
  .section-head h2,.faq-intro h2,.cta-panel h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .timeline li{padding-left:64px;padding-bottom:26px}
  .timeline::before{left:21px}
  .step-no{width:44px;height:44px;font-size:13px;border-radius:12px}
}

/* roulang page: category3 */
:root{
  --bg:#070C16;
  --bg-elev:#0C1424;
  --panel:rgba(14,23,42,.68);
  --glass-border:rgba(255,255,255,.12);
  --primary:#E9B949;
  --primary-strong:#FFD166;
  --leaf:#48C6A1;
  --berry:#FF7A8A;
  --text:#EAF0FA;
  --muted:#A7B3C8;
  --faint:#6D7A91;
  --line:rgba(255,255,255,.10);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sidebar-w:248px;
  --bs-body-bg:#070C16;
  --bs-body-color:#EAF0FA;
  --bs-primary:#E9B949;
  --bs-border-color:rgba(255,255,255,.12);
  --bs-border-radius:16px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-link-color:#E9B949;
  --bs-link-hover-color:#FFD166;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 82% -10%, rgba(233,185,73,.10), transparent 60%),
    radial-gradient(700px 460px at 8% 108%, rgba(72,198,161,.08), transparent 62%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--primary-strong);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:.005em;color:var(--text);}
p{margin:0;}
button{font-family:inherit;}
.mono{font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;letter-spacing:.02em;}
::selection{background:rgba(233,185,73,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

/* ---------- 左侧导航 ---------- */
.shell-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:linear-gradient(180deg,#080E1A 0%,#0A121F 100%);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
  z-index:1040;
}
.sidebar-brand{
  display:flex;
  align-items:center;
  gap:11px;
  padding:2px 6px 0;
}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--primary),#C9942C);
  color:#10131A;
  font-weight:800;
  font-size:19px;
  box-shadow:0 8px 22px rgba(233,185,73,.28);
}
.brand-text{
  display:block;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  line-height:1.25;
}
.brand-text em{
  font-style:normal;
  color:var(--primary);
}
.sidebar-nav{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.sidebar-nav a{
  position:relative;
  display:block;
  padding:11px 14px 11px 16px;
  border-radius:12px;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.sidebar-nav a::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%) scaleY(.2);
  width:3px;height:20px;
  border-radius:3px;
  background:var(--primary);
  opacity:0;
  transition:opacity .18s ease,transform .18s ease;
}
.sidebar-nav a:hover,
.sidebar-nav a:focus-visible{
  background:rgba(255,255,255,.05);
  color:var(--text);
}
.sidebar-nav a.active{
  background:rgba(255,255,255,.06);
  color:var(--primary);
  font-weight:600;
}
.sidebar-nav a.active::before{
  opacity:1;
  transform:translateY(-50%) scaleY(1);
}
.sidebar-foot{
  margin-top:auto;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.sidebar-foot .btn-main{
  width:100%;
  justify-content:center;
  font-size:15px;
  height:46px;
}
.sidebar-foot .foot-note{
  margin-top:12px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--faint);
}

/* ---------- 移动端顶栏 ---------- */
.mobile-topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:1035;
  height:64px;
  align-items:center;
  justify-content:space-between;
  padding:0 18px;
  background:rgba(8,14,26,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{
  display:flex;align-items:center;gap:9px;
  font-size:15.5px;font-weight:700;color:var(--text);
}
.mobile-brand em{font-style:normal;color:var(--primary);}
.mobile-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:15px;}
.nav-toggle{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:17px;
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:rgba(233,185,73,.5);color:var(--primary);}

/* ---------- 抽屉 ---------- */
.offcanvas.drama-drawer{
  background:linear-gradient(180deg,#080E1A,#0B1322);
  border-right:1px solid var(--line);
  color:var(--text);
  width:290px;
}
.drama-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 18px;
}
.drama-drawer .drawer-title{
  display:flex;align-items:center;gap:10px;
  font-size:15.5px;font-weight:700;
}
.drama-drawer .drawer-title em{font-style:normal;color:var(--primary);}
.drama-drawer .btn-close{
  filter:invert(1) grayscale(1) brightness(1.6);
  opacity:.75;
}
.drama-drawer .offcanvas-body{padding:18px;}
.drama-drawer .sidebar-nav a{font-size:15.5px;padding:12px 14px 12px 16px;}
.drama-drawer .drawer-foot{
  margin-top:24px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.drama-drawer .drawer-foot .btn-main{width:100%;justify-content:center;}
.drama-drawer .drawer-foot p{
  margin-top:12px;font-size:12.5px;color:var(--faint);line-height:1.7;
}

/* ---------- 主内容 ---------- */
.main-stage{
  position:relative;
  z-index:1;
  margin-left:var(--sidebar-w);
  min-height:100vh;
}
.wrap{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:50px;
  padding:0 25px;
  border:0;
  border-radius:var(--r-sm);
  background:linear-gradient(180deg,var(--primary-strong),var(--primary));
  color:#141006;
  font-size:15.5px;
  font-weight:700;
  letter-spacing:.01em;
  cursor:pointer;
  box-shadow:0 0 26px rgba(233,185,73,.32);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.btn-main:hover,
.btn-main:focus-visible{
  color:#141006;
  background:linear-gradient(180deg,#FFDE8A,var(--primary-strong));
  transform:translateY(-1px);
  box-shadow:0 0 34px rgba(233,185,73,.46);
}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:50px;
  padding:0 23px;
  border:1px solid var(--glass-border);
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:15.5px;
  font-weight:600;
  transition:border-color .18s ease,background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover,
.btn-ghost:focus-visible{
  border-color:rgba(233,185,73,.55);
  background:rgba(255,255,255,.07);
  color:var(--primary-strong);
  transform:translateY(-1px);
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow i{font-size:12px;transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:9px;
  font-size:13.5px;
  color:var(--faint);
  margin-bottom:20px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:rgba(255,255,255,.22);}
.crumb .current{color:var(--primary);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 76px;
  background-image:
    linear-gradient(100deg,rgba(7,12,22,.97) 0%,rgba(7,12,22,.86) 48%,rgba(7,12,22,.55) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:52px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:7px 14px;
  border:1px solid rgba(233,185,73,.35);
  border-radius:999px;
  background:rgba(233,185,73,.09);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:14px;height:2px;
  background:repeating-linear-gradient(90deg,var(--primary) 0 3px,transparent 3px 6px);
}
.page-hero h1{
  font-size:clamp(34px,4vw,56px);
  line-height:1.15;
  font-weight:700;
  margin-bottom:20px;
}
.page-hero h1 .accent{
  display:inline-block;
  color:var(--primary);
  position:relative;
}
.lede{
  max-width:700px;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.85;
  margin-bottom:14px;
}
.lede strong{color:var(--text);font-weight:600;}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.hero-tags li{
  padding:5px 13px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
  background:rgba(255,255,255,.03);
}
.hero-media{
  position:relative;
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--glass-border);
  background:linear-gradient(150deg,#101B2E,#0A1120);
  box-shadow:0 20px 60px rgba(0,0,0,.4);
  aspect-ratio:4/3;
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,0) 45%,rgba(7,12,22,.82) 100%);
  pointer-events:none;
}
.media-meta{
  position:absolute;
  left:0;right:0;bottom:0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:16px 18px;
  font-size:12.5px;
  color:var(--muted);
  z-index:2;
}
.media-meta .tc{
  color:var(--primary);
  font-size:13px;
}
.media-play{
  position:absolute;
  left:50%;top:50%;
  transform:translate(-50%,-50%);
  width:62px;height:62px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(233,185,73,.55);
  background:rgba(233,185,73,.16);
  backdrop-filter:blur(8px);
  color:var(--primary-strong);
  font-size:18px;
  z-index:2;
  box-shadow:0 0 30px rgba(233,185,73,.25);
}

/* ---------- 板块通用 ---------- */
.sec{
  padding:84px 0;
  border-bottom:1px solid var(--line);
}
.sec:last-of-type{border-bottom:0;}
.sec-head{
  max-width:820px;
  margin-bottom:44px;
}
.sec-head h2{
  font-size:clamp(26px,2.7vw,36px);
  line-height:1.25;
  margin-bottom:14px;
}
.sec-head p{
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
}
.sec-kicker{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--primary);
  font-weight:700;
  margin-bottom:12px;
}

/* ---------- 内容类型卡片网格 ---------- */
.type-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:26px;
}
.type-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--bg-elev);
  overflow:hidden;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.type-card:hover{
  border-color:rgba(233,185,73,.45);
  transform:translateY(-4px);
  box-shadow:0 22px 50px rgba(0,0,0,.4);
}
.type-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(150deg,#12203A,#0A1220);
}
.type-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.type-card:hover .type-thumb img{transform:scale(1.03);}
.type-thumb .badge-soft{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  border:1px solid rgba(233,185,73,.4);
  background:rgba(10,17,32,.78);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  backdrop-filter:blur(6px);
}
.badge-leaf{
  border-color:rgba(72,198,161,.4);
  color:var(--leaf);
}
.badge-berry{
  border-color:rgba(255,122,138,.4);
  color:var(--berry);
}
.type-body{
  padding:22px 24px 24px;
  display:flex;
  flex-direction:column;
  gap:11px;
  flex:1;
}
.type-body h3{
  font-size:20px;
  line-height:1.4;
}
.type-body p{
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}
.type-body .link-arrow{margin-top:auto;padding-top:6px;}

/* ---------- 适用对象信息条 ---------- */
.fit-list{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.fit-item{
  display:grid;
  grid-template-columns:74px minmax(0,1fr) auto;
  gap:22px;
  align-items:center;
  padding:22px 26px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(100deg,rgba(18,28,48,.9),rgba(10,17,30,.9));
  transition:border-color .2s ease,transform .2s ease;
}
.fit-item:hover{
  border-color:rgba(233,185,73,.4);
  transform:translateX(3px);
}
.fit-num{
  font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  font-size:24px;
  font-weight:700;
  color:var(--primary);
  opacity:.85;
}
.fit-item h3{
  font-size:18px;
  margin-bottom:5px;
}
.fit-item p{
  color:var(--muted);
  font-size:14.8px;
  line-height:1.75;
}
.fit-item .fit-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  border:1px solid var(--line);
  color:var(--leaf);
  font-size:14px;
}

/* ---------- 流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.flow-step{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--panel);
  backdrop-filter:blur(14px);
  transition:border-color .2s ease,transform .2s ease;
}
.flow-step:hover{
  border-color:rgba(233,185,73,.42);
  transform:translateY(-4px);
}
.flow-step::before{
  content:"";
  position:absolute;
  left:22px;top:0;
  width:34px;height:3px;
  border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--primary),rgba(233,185,73,0));
}
.flow-step .step-no{
  font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  font-size:13px;
  color:var(--primary);
  letter-spacing:.1em;
  display:block;
  margin-bottom:12px;
}
.flow-step h3{
  font-size:18px;
  margin-bottom:9px;
}
.flow-step p{
  color:var(--muted);
  font-size:14.6px;
  line-height:1.78;
}

/* ---------- 数据条 ---------- */
.fact-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  overflow:hidden;
  background:linear-gradient(180deg,rgba(18,28,48,.72),rgba(9,15,27,.72));
}
.fact{
  padding:26px 24px;
  border-right:1px solid var(--line);
}
.fact:last-child{border-right:0;}
.fact b{
  display:block;
  font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  font-size:34px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
}
.fact span{
  display:block;
  margin-top:6px;
  font-size:13.5px;
  color:var(--muted);
}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);
  gap:52px;
  align-items:start;
}
.faq-side h2{
  font-size:clamp(26px,2.7vw,34px);
  margin-bottom:16px;
  line-height:1.28;
}
.faq-side p{
  color:var(--muted);
  font-size:15.6px;
  line-height:1.85;
  margin-bottom:20px;
}
.faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq .accordion-item:first-child{border-top:1px solid var(--line);}
.faq .accordion-button{
  position:relative;
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:20px 46px 20px 20px;
  border-radius:0;
  box-shadow:none;
  transition:color .18s ease,background .18s ease;
}
.faq .accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(255,255,255,.03);
  box-shadow:inset 3px 0 0 var(--primary);
}
.faq .accordion-button:focus{
  box-shadow:inset 3px 0 0 var(--primary);
  outline:none;
}
.faq .accordion-button::after{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  width:auto;height:auto;
  background-image:none;
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--faint);
  transition:color .18s ease;
}
.faq .accordion-button:not(.collapsed)::after{
  content:"−";
  color:var(--primary);
  transform:translateY(-50%);
}
.faq .accordion-body{
  padding:2px 24px 22px 23px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}

/* ---------- CTA 卡 ---------- */
.cta-card{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:44px;
  align-items:center;
  padding:44px 46px;
  border-radius:var(--r-lg);
  border:1px solid rgba(233,185,73,.28);
  background:
    radial-gradient(620px 320px at 88% 0%,rgba(233,185,73,.14),transparent 62%),
    linear-gradient(140deg,rgba(18,28,48,.92),rgba(9,15,27,.92));
  box-shadow:var(--shadow-lg);
}
.cta-card h2{
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.28;
  margin-bottom:14px;
}
.cta-card p{
  color:var(--muted);
  font-size:15.6px;
  line-height:1.85;
}
.cta-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.cta-points li{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 13px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:13px;
  color:var(--muted);
}
.cta-points li i{color:var(--leaf);font-size:11px;}
.cta-action{
  padding:26px 26px;
  border-radius:var(--r-md);
  border:1px solid var(--glass-border);
  background:rgba(10,17,32,.62);
  backdrop-filter:blur(14px);
  text-align:left;
}
.cta-action .btn-main{width:100%;justify-content:center;}
.cta-note{
  margin-top:16px;
  font-size:13.4px;
  line-height:1.8;
  color:var(--muted);
}
.cta-note b{color:var(--text);font-weight:600;}

/* ---------- 页脚 ---------- */
.site-footer{
  padding:60px 32px 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,30,.7),rgba(6,10,19,.95));
}
.site-footer::before{
  content:"";
  display:block;
  height:6px;
  margin:-60px -32px 44px;
  background-image:radial-gradient(circle at 6px 3px,rgba(255,255,255,.10) 2px,transparent 2.5px);
  background-size:16px 6px;
  background-repeat:repeat-x;
  opacity:.7;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:44px;
  padding-bottom:44px;
}
.footer-brand strong{
  display:block;
  font-size:17px;
  color:var(--text);
  margin-bottom:12px;
}
.footer-brand p{
  color:var(--muted);
  font-size:14.4px;
  line-height:1.85;
  max-width:420px;
}
.footer-col h4{
  font-size:14px;
  letter-spacing:.06em;
  color:var(--primary);
  margin-bottom:16px;
  font-weight:700;
}
.footer-col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-col li,
.footer-col a{
  font-size:14.2px;
  color:var(--muted);
  line-height:1.7;
}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--faint);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .wrap{max-width:1240px;}
  .page-hero-grid{gap:40px;}
}
@media (max-width:1199px){
  :root{--sidebar-w:232px;}
  .wrap{padding:0 26px;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .fact-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .fact:nth-child(2){border-right:0;}
  .fact:nth-child(1),
  .fact:nth-child(2){border-bottom:1px solid var(--line);}
  .faq-wrap{gap:36px;}
  .cta-card{padding:34px 32px;gap:32px;}
}
@media (max-width:991px){
  :root{--sidebar-w:0px;}
  .shell-sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .main-stage{margin-left:0;padding-top:0;}
  .wrap{padding:0 22px;}
  .page-hero{padding:40px 0 56px;}
  .page-hero-grid{grid-template-columns:minmax(0,1fr);gap:34px;}
  .page-hero h1{font-size:clamp(32px,6vw,42px);}
  .hero-media{aspect-ratio:16/10;}
  .sec{padding:60px 0;}
  .type-grid{grid-template-columns:minmax(0,1fr);gap:20px;}
  .faq-wrap{grid-template-columns:minmax(0,1fr);gap:28px;}
  .cta-card{grid-template-columns:minmax(0,1fr);padding:30px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
  .site-footer{padding:48px 22px 0;}
  .site-footer::before{margin:-48px -22px 36px;}
  .fit-item{grid-template-columns:56px minmax(0,1fr);gap:16px;padding:20px;}
  .fit-item .fit-mark{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .sec{padding:52px 0;}
  .sec-head{margin-bottom:32px;}
  .sec-head h2{font-size:26px;}
  .page-hero h1{font-size:32px;}
  .lede{font-size:15.6px;}
  .flow{grid-template-columns:minmax(0,1fr);}
  .fact-band{grid-template-columns:minmax(0,1fr);}
  .fact{border-right:0;border-bottom:1px solid var(--line);}
  .fact:last-child{border-bottom:0;}
  .type-body{padding:18px 18px 20px;}
  .type-body h3{font-size:19px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-actions .btn-main,
  .hero-actions .btn-ghost{width:100%;justify-content:center;}
  .faq .accordion-button{font-size:16px;padding:17px 42px 17px 16px;}
  .faq .accordion-body{padding:2px 18px 18px 17px;font-size:15px;}
  .media-play{width:54px;height:54px;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .page-hero h1{font-size:29px;}
  .hero-tags li{font-size:12px;}
  .fit-num{font-size:19px;}
  .cta-note{font-size:12.8px;}
}

/* roulang page: category4 */
:root{
    --bg:#070C16;
    --bg-elev:#0C1424;
    --panel:rgba(14,23,42,.68);
    --glass-border:rgba(255,255,255,.12);
    --primary:#E9B949;
    --primary-strong:#FFD166;
    --leaf:#48C6A1;
    --berry:#FF7A8A;
    --text:#EAF0FA;
    --muted:#A7B3C8;
    --faint:#6D7A91;
    --line:rgba(255,255,255,.10);
    --shadow-lg:0 24px 70px rgba(0,0,0,.45);
    --radius-xl:26px;
    --radius-lg:22px;
    --radius-md:18px;
    --radius-sm:14px;
    --sidebar-w:248px;

    --bs-body-bg:var(--bg);
    --bs-body-color:var(--text);
    --bs-primary:var(--primary);
    --bs-border-color:var(--line);
    --bs-border-radius:14px;
    --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    --bs-link-color:var(--primary);
    --bs-link-hover-color:var(--primary-strong);
  }

  *,*::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","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background:
      radial-gradient(900px 480px at 82% -8%, rgba(233,185,73,.10), transparent 68%),
      radial-gradient(760px 420px at 8% 12%, rgba(72,198,161,.07), transparent 70%);
    pointer-events:none;
    z-index:0;
  }
  img{max-width:100%;display:block;}
  a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
  a:hover{color:var(--primary-strong);}
  button{font-family:inherit;}
  p{margin:0 0 1em;}
  h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:0;color:var(--text);}
  ul,ol,dl{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

  .mono{font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;letter-spacing:.02em;}

  .app{position:relative;z-index:1;}

  /* ---------- 侧栏 ---------- */
  .sidebar{
    position:fixed;
    top:0;left:0;bottom:0;
    width:var(--sidebar-w);
    display:flex;
    flex-direction:column;
    gap:22px;
    padding:26px 18px 22px;
    background:#050A13;
    border-right:1px solid var(--line);
    overflow-y:auto;
    z-index:60;
  }
  .brand{
    display:flex;align-items:center;gap:12px;
    padding:6px 6px 16px;
    border-bottom:1px solid var(--line);
  }
  .brand-mark{
    width:40px;height:40px;flex:0 0 40px;
    display:grid;place-items:center;
    border-radius:12px;
    background:linear-gradient(150deg,rgba(233,185,73,.24),rgba(72,198,161,.16));
    border:1px solid rgba(233,185,73,.42);
    color:var(--primary);
    font-size:17px;
    box-shadow:0 0 22px rgba(233,185,73,.18);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.35;}
  .brand-text strong{font-size:15px;color:var(--text);font-weight:700;letter-spacing:.01em;}
  .brand-text em{font-style:normal;font-size:11.5px;color:var(--faint);letter-spacing:.06em;}

  .sidebar-nav{display:flex;flex-direction:column;gap:4px;}
  .sidebar-nav a{
    position:relative;
    display:block;
    padding:11px 14px 11px 18px;
    border-radius:12px;
    font-size:15px;
    color:var(--muted);
    transition:background-color .2s ease,color .2s ease;
  }
  .sidebar-nav a::before{
    content:"";
    position:absolute;
    left:6px;top:50%;
    transform:translateY(-50%);
    width:3px;height:0;
    border-radius:3px;
    background:var(--primary);
    transition:height .2s ease;
  }
  .sidebar-nav a:hover{background:rgba(255,255,255,.045);color:var(--text);}
  .sidebar-nav a:focus-visible{background:rgba(255,255,255,.06);}
  .sidebar-nav a.active{
    color:var(--primary);
    background:rgba(255,255,255,.05);
    font-weight:600;
  }
  .sidebar-nav a.active::before{height:20px;}

  .sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
  .sidebar-foot p{margin:0;font-size:12.5px;line-height:1.7;color:var(--faint);padding-left:2px;}

  /* ---------- 按钮 ---------- */
  .btn-gold{
    display:inline-flex;align-items:center;justify-content:center;gap:10px;
    height:50px;padding:0 26px;
    border:0;border-radius:var(--radius-sm);
    background:linear-gradient(180deg,var(--primary-strong),var(--primary));
    color:#191106;
    font-weight:700;font-size:15.5px;
    box-shadow:0 0 26px rgba(233,185,73,.32);
    transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
    cursor:pointer;
  }
  .btn-gold:hover{color:#120c04;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 38px rgba(233,185,73,.5);}
  .btn-gold:active{transform:translateY(0);box-shadow:0 0 20px rgba(233,185,73,.35);}
  .btn-glass{
    display:inline-flex;align-items:center;justify-content:center;gap:10px;
    height:50px;padding:0 24px;
    border-radius:var(--radius-sm);
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.05);
    color:var(--text);
    font-weight:600;font-size:15.5px;
    transition:border-color .2s ease,background-color .2s ease,transform .2s ease;
    cursor:pointer;
  }
  .btn-glass:hover{border-color:rgba(233,185,73,.6);background:rgba(255,255,255,.09);color:var(--primary-strong);transform:translateY(-1px);}
  .link-arrow{
    display:inline-flex;align-items:center;gap:8px;
    font-weight:600;font-size:15px;color:var(--primary);
  }
  .link-arrow i{transition:transform .2s ease;}
  .link-arrow:hover i{transform:translateX(4px);}
  .w-full{width:100%;}

  /* ---------- 主区域 ---------- */
  .main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
  .wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 32px;}
  main{flex:1 0 auto;}

  /* ---------- 移动顶栏 ---------- */
  .topbar{
    display:none;
    position:sticky;top:0;z-index:70;
    height:64px;
    align-items:center;justify-content:space-between;
    gap:12px;
    padding:0 18px;
    background:rgba(5,10,19,.92);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .topbar .brand{padding:0;border:0;}
  .topbar .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:15px;border-radius:10px;}
  .topbar .brand-text strong{font-size:14px;}
  .topbar .brand-text em{display:none;}
  .hamburger{
    width:42px;height:42px;
    display:grid;place-items:center;
    border-radius:12px;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.05);
    color:var(--text);
    font-size:17px;
    cursor:pointer;
    transition:border-color .2s ease,color .2s ease;
  }
  .hamburger:hover{border-color:rgba(233,185,73,.6);color:var(--primary);}

  .drawer{background:#050A13;color:var(--text);border-right:1px solid var(--line);width:296px;}
  .drawer .offcanvas-header{padding:20px 20px 14px;border-bottom:1px solid var(--line);align-items:center;}
  .drawer .offcanvas-header .brand-text strong{font-size:15px;}
  .drawer-close{
    width:38px;height:38px;border-radius:11px;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.05);
    color:var(--text);font-size:16px;
    display:grid;place-items:center;cursor:pointer;
  }
  .drawer-close:hover{color:var(--primary);border-color:rgba(233,185,73,.6);}
  .drawer .offcanvas-body{padding:18px 16px 26px;display:flex;flex-direction:column;gap:18px;}
  .drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
  .drawer-foot p{margin:0;font-size:12.5px;color:var(--faint);line-height:1.7;}

  /* ---------- 面包屑 ---------- */
  .crumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--faint);
    padding:26px 0 0;
  }
  .crumbs a{color:var(--muted);}
  .crumbs a:hover{color:var(--primary);}
  .crumbs i{font-size:9px;color:var(--faint);}
  .crumbs span{color:var(--primary);}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    margin-top:20px;
    padding:52px 48px 48px;
    border-radius:var(--radius-xl);
    border:1px solid var(--line);
    overflow:hidden;
    background:
      linear-gradient(100deg, rgba(7,12,22,.97) 0%, rgba(7,12,22,.88) 46%, rgba(7,12,22,.62) 100%),
      url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    box-shadow:var(--shadow-lg);
  }
  .hero::after{
    content:"";
    position:absolute;left:0;right:0;top:0;height:4px;
    background:repeating-linear-gradient(90deg,var(--primary) 0 22px,transparent 22px 44px);
    opacity:.5;
  }
  .hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:center;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    padding:6px 14px;
    border-radius:999px;
    border:1px solid rgba(233,185,73,.36);
    background:rgba(233,185,73,.09);
    color:var(--primary);
    font-size:12.5px;letter-spacing:.08em;
    font-weight:600;
    margin-bottom:20px;
  }
  .hero h1{
    font-size:clamp(34px,4.2vw,56px);
    line-height:1.14;
    font-weight:700;
    margin-bottom:20px;
  }
  .hero h1 .accent{color:var(--primary);}
  .hero-lead{max-width:760px;font-size:16.5px;line-height:1.85;color:var(--muted);margin-bottom:14px;}
  .hero-lead:last-of-type{margin-bottom:26px;}
  .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}

  .hero-aside{
    padding:24px;
    border-radius:var(--radius-lg);
    background:var(--panel);
    border:1px solid var(--glass-border);
    backdrop-filter:blur(16px);
    box-shadow:0 20px 60px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.06);
  }
  .hero-aside .tc{
    display:flex;align-items:center;justify-content:space-between;
    font-size:12px;color:var(--faint);
    padding-bottom:12px;margin-bottom:14px;
    border-bottom:1px dashed var(--line);
  }
  .hero-aside .tc .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--berry);margin-right:7px;vertical-align:middle;}
  .hero-aside h2{font-size:15px;color:var(--muted);font-weight:600;margin-bottom:12px;letter-spacing:.04em;}
  .fact{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.06);}
  .fact:last-child{border-bottom:0;padding-bottom:0;}
  .fact .num{font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;font-size:13px;color:var(--primary);flex:0 0 54px;padding-top:2px;}
  .fact .txt{font-size:14px;line-height:1.65;color:var(--muted);}
  .fact .txt b{color:var(--text);font-weight:600;}

  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .tag{
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 13px;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    font-size:12.5px;color:var(--muted);
  }
  .tag i{color:var(--leaf);font-size:11px;}

  /* ---------- 板块 ---------- */
  .section{padding:92px 0;}
  .section.tight{padding:72px 0;}
  .section-head{max-width:800px;margin-bottom:40px;}
  .section-head h2{
    font-size:clamp(26px,3vw,34px);
    line-height:1.28;
    font-weight:650;
    margin-bottom:14px;
  }
  .section-head p{color:var(--muted);font-size:16px;line-height:1.8;margin:0;}
  .kicker{
    display:inline-block;
    font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
    font-size:12px;letter-spacing:.16em;color:var(--primary);
    margin-bottom:12px;
  }

  /* ---------- 对比清单 ---------- */
  .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
  .compare-card{
    position:relative;
    padding:28px 26px 24px;
    border-radius:var(--radius-lg);
    background:var(--panel);
    border:1px solid var(--glass-border);
    backdrop-filter:blur(14px);
    box-shadow:0 18px 50px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.06);
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .compare-card:hover{transform:translateY(-4px);border-color:rgba(233,185,73,.45);box-shadow:0 26px 62px rgba(0,0,0,.42);}
  .compare-card.pick{border-color:rgba(233,185,73,.5);}
  .compare-card.pick::before{
    content:"常见选择";
    position:absolute;top:-11px;right:22px;
    padding:3px 11px;
    border-radius:999px;
    background:linear-gradient(180deg,var(--primary-strong),var(--primary));
    color:#191106;font-size:11.5px;font-weight:700;letter-spacing:.05em;
  }
  .compare-top{display:flex;align-items:center;gap:12px;margin-bottom:6px;}
  .cmp-index{
    font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
    font-size:13px;color:var(--primary);
    border:1px solid rgba(233,185,73,.4);
    border-radius:8px;padding:1px 8px;
  }
  .compare-card h3{font-size:20px;font-weight:650;}
  .compare-sub{font-size:13.5px;color:var(--faint);margin:2px 0 16px;}
  .cmp-list{display:flex;flex-direction:column;}
  .cmp-row{
    display:grid;grid-template-columns:88px 1fr;gap:14px;
    padding:12px 0;
    border-bottom:1px dashed var(--line);
    font-size:14.5px;
  }
  .cmp-row:last-child{border-bottom:0;padding-bottom:4px;}
  .cmp-row dt{color:var(--faint);font-size:13.5px;}
  .cmp-row dd{margin:0;color:var(--text);line-height:1.65;}

  /* ---------- 案例大卡 ---------- */
  .cases-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
  .cases-grid > article:nth-child(2){margin-top:64px;}
  .case-card{
    display:flex;flex-direction:column;
    border-radius:var(--radius-lg);
    border:1px solid var(--line);
    background:var(--bg-elev);
    overflow:hidden;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .case-card:hover{transform:translateY(-4px);border-color:rgba(233,185,73,.45);box-shadow:0 24px 60px rgba(0,0,0,.45);}
  .case-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(150deg,#101B2E,#0A1220);}
  .case-media img{width:100%;height:100%;object-fit:cover;}
  .case-media::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(7,12,22,0) 42%,rgba(7,12,22,.78) 100%);
  }
  .case-media .shot{
    position:absolute;left:16px;top:14px;z-index:2;
    font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
    font-size:11.5px;color:rgba(234,240,250,.82);
    padding:3px 9px;border-radius:7px;
    background:rgba(7,12,22,.6);
    border:1px solid rgba(255,255,255,.16);
    backdrop-filter:blur(6px);
  }
  .case-media .sprocket{
    position:absolute;left:0;right:0;bottom:0;height:12px;z-index:2;
    background:repeating-linear-gradient(90deg,rgba(255,255,255,.14) 0 8px,transparent 8px 22px);
    opacity:.5;
  }
  .case-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .badges{display:flex;flex-wrap:wrap;gap:8px;}
  .badge-soft{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 11px;border-radius:999px;
    font-size:12px;font-weight:600;
    border:1px solid rgba(72,198,161,.35);
    background:rgba(72,198,161,.10);
    color:var(--leaf);
  }
  .badge-soft.gold{border-color:rgba(233,185,73,.38);background:rgba(233,185,73,.10);color:var(--primary);}
  .badge-soft.pink{border-color:rgba(255,122,138,.36);background:rgba(255,122,138,.10);color:var(--berry);}
  .case-body h3{font-size:21px;line-height:1.45;font-weight:650;}
  .case-body p{margin:0;color:var(--muted);font-size:15px;line-height:1.8;}
  .case-body .link-arrow{margin-top:auto;padding-top:8px;}

  /* ---------- 拆解要点 ---------- */
  .strip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .strip-item{
    position:relative;
    padding:22px 22px 22px 24px;
    border-radius:var(--radius-md);
    background:rgba(12,20,36,.72);
    border:1px solid var(--line);
    border-left:3px solid var(--primary);
    transition:background-color .2s ease,transform .2s ease;
  }
  .strip-item:hover{background:rgba(18,28,48,.9);transform:translateY(-3px);}
  .strip-item .idx{
    font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
    font-size:12.5px;color:var(--primary);letter-spacing:.12em;
  }
  .strip-item h3{font-size:18px;margin:8px 0 8px;font-weight:650;}
  .strip-item p{margin:0;font-size:14.5px;line-height:1.75;color:var(--muted);}

  /* ---------- FAQ ---------- */
  .faq-layout{display:grid;grid-template-columns:340px 1fr;gap:48px;align-items:start;}
  .faq-side h2{font-size:clamp(26px,3vw,34px);line-height:1.28;margin-bottom:16px;}
  .faq-side p{color:var(--muted);font-size:15.5px;line-height:1.8;}
  .faq-side .link-arrow{margin-top:6px;}

  .accordion-item{
    background:transparent;
    border:0;
    border-bottom:1px solid var(--line);
  }
  .accordion-item:first-of-type{border-top:1px solid var(--line);}
  .accordion-header{margin:0;font-size:inherit;}
  .accordion-button{
    position:relative;
    width:100%;
    padding:20px 46px 20px 20px;
    background:transparent;
    color:var(--text);
    font-size:17px;
    font-weight:600;
    line-height:1.6;
    border-radius:0;
    box-shadow:none;
    transition:color .2s ease,background-color .2s ease;
  }
  .accordion-button::before{
    content:"";
    position:absolute;left:0;top:14px;bottom:14px;
    width:3px;border-radius:3px;
    background:var(--primary);
    opacity:0;
    transition:opacity .2s ease;
  }
  .accordion-button::after{
    content:"+";
    position:absolute;right:16px;top:50%;transform:translateY(-50%);
    width:auto;height:auto;
    background-image:none;
    font-family:"JetBrains Mono",Consolas,monospace;
    font-size:20px;line-height:1;
    color:var(--primary);
    display:flex;align-items:center;justify-content:center;
  }
  .accordion-button:not(.collapsed){
    background:rgba(255,255,255,.03);
    color:var(--primary);
    box-shadow:none;
  }
  .accordion-button:not(.collapsed)::before{opacity:1;}
  .accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%);}
  .accordion-button:focus{box-shadow:none;border-color:transparent;}
  .accordion-button:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
  .accordion-button:hover{background:rgba(255,255,255,.025);}
  .accordion-body{
    padding:0 46px 22px 20px;
    font-size:15.5px;
    line-height:1.85;
    color:var(--muted);
  }

  /* ---------- 页尾 CTA ---------- */
  .cta-card{
    position:relative;
    display:grid;
    grid-template-columns:1fr auto;
    gap:36px;
    align-items:center;
    padding:44px 44px;
    border-radius:var(--radius-xl);
    background:
      linear-gradient(100deg,rgba(14,23,42,.94),rgba(14,23,42,.72)),
      url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    border:1px solid var(--glass-border);
    backdrop-filter:blur(16px);
    box-shadow:0 24px 70px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.06);
    overflow:hidden;
  }
  .cta-card::before{
    content:"";
    position:absolute;left:0;top:0;bottom:0;width:4px;
    background:linear-gradient(180deg,var(--primary-strong),rgba(233,185,73,.15));
  }
  .cta-card h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;margin-bottom:12px;}
  .cta-card p{margin:0;color:var(--muted);font-size:15.5px;max-width:640px;}
  .cta-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start;min-width:220px;}
  .cta-actions .mono{font-size:13px;color:var(--faint);}

  /* ---------- 页脚 ---------- */
  .site-footer{
    border-top:1px solid var(--line);
    padding:52px 32px 26px;
    margin-top:0;
    background:rgba(5,10,19,.72);
    max-width:1320px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr;
    gap:40px;
    padding-bottom:34px;
    border-bottom:1px solid var(--line);
  }
  .footer-brand strong{display:block;font-size:16px;color:var(--text);margin-bottom:12px;letter-spacing:.01em;}
  .footer-brand p{margin:0;font-size:14px;line-height:1.8;color:var(--faint);max-width:420px;}
  .footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;font-weight:600;}
  .footer-col ul{display:flex;flex-direction:column;gap:9px;}
  .footer-col li{font-size:14px;color:var(--faint);}
  .footer-col a{color:var(--muted);font-size:14px;}
  .footer-col a:hover{color:var(--primary);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    padding-top:20px;
    font-size:13px;color:var(--faint);
  }
  .footer-bottom .mono{color:var(--faint);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1399px){
    .wrap{max-width:1320px;}
  }
  @media (max-width:1199px){
    :root{--sidebar-w:208px;}
    .hero{padding:44px 36px 40px;}
    .hero-grid{grid-template-columns:1.4fr .9fr;gap:32px;}
    .faq-layout{grid-template-columns:290px 1fr;gap:34px;}
  }
  @media (max-width:991.98px){
    .sidebar{display:none;}
    .topbar{display:flex;}
    .main{margin-left:0;}
    .wrap{padding:0 20px;}
    .site-footer{padding:44px 20px 22px;}
    .hero{margin-top:16px;padding:34px 24px 30px;border-radius:22px;}
    .hero-grid{grid-template-columns:1fr;gap:28px;}
    .hero h1{font-size:clamp(30px,6vw,40px);}
    .section{padding:64px 0;}
    .section.tight{padding:52px 0;}
    .compare-grid{grid-template-columns:1fr;}
    .cases-grid{grid-template-columns:1fr;gap:22px;}
    .cases-grid > article:nth-child(2){margin-top:0;}
    .strip-grid{grid-template-columns:1fr;}
    .faq-layout{grid-template-columns:1fr;gap:26px;}
    .cta-card{grid-template-columns:1fr;gap:24px;padding:30px 24px;}
    .cta-actions{flex-direction:row;align-items:center;flex-wrap:wrap;min-width:0;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .footer-brand{grid-column:1 / -1;}
  }
  @media (max-width:575.98px){
    body{font-size:15.5px;}
    .hero{padding:28px 18px 26px;}
    .hero-actions{gap:12px;}
    .hero-actions .btn-gold,.hero-actions .btn-glass{width:100%;}
    .hero-aside{padding:20px;}
    .compare-card{padding:22px 18px 18px;}
    .cmp-row{grid-template-columns:76px 1fr;gap:10px;font-size:14px;}
    .case-body{padding:20px 18px 22px;}
    .case-body h3{font-size:19px;}
    .strip-item{padding:18px 16px 18px 18px;}
    .accordion-button{font-size:16px;padding:17px 40px 17px 16px;}
    .accordion-body{padding:0 16px 20px 16px;font-size:15px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
    .cta-actions{flex-direction:column;align-items:stretch;}
    .cta-actions .btn-gold{width:100%;}
  }

/* roulang page: category5 */
:root{
  --bg:#070C16;
  --bg-elev:#0C1424;
  --panel:rgba(14,23,42,.68);
  --glass-border:rgba(255,255,255,.12);
  --primary:#E9B949;
  --primary-strong:#FFD166;
  --leaf:#48C6A1;
  --berry:#FF7A8A;
  --text:#EAF0FA;
  --muted:#A7B3C8;
  --faint:#6D7A91;
  --line:rgba(255,255,255,.10);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --radius-lg:24px;
  --radius:18px;
  --radius-sm:12px;
  --sidebar-w:248px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Courier New",monospace;
  --bs-body-bg:#070C16;
  --bs-body-color:#EAF0FA;
  --bs-primary:#E9B949;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-link-color:#E9B949;
  --bs-link-hover-color:#FFD166;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--primary-strong)}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:0;font-weight:650}
h1{font-size:clamp(34px,4vw,56px);line-height:1.15;font-weight:700}
h2{font-size:clamp(26px,2.6vw,34px);line-height:1.25}
h3{font-size:clamp(18px,1.5vw,21px);line-height:1.45;font-weight:600}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary-strong);outline-offset:3px;border-radius:6px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:2000;
  background:var(--primary);color:#0A1020;padding:10px 18px;border-radius:0 0 12px 0;font-weight:600;
}
.skip-link:focus{left:0}
.mono{font-family:var(--font-mono);letter-spacing:.04em}
.wrap{max-width:1320px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:780px;margin-bottom:44px}
.section-head p{color:var(--muted);font-size:16px;margin:14px 0 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);display:block;border-radius:2px}

/*===== 左侧 App Shell =====*/
.app-sidebar{
  position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);z-index:1040;
  background:#050A12;border-right:1px solid var(--line);
  padding:26px 20px 24px;display:flex;flex-direction:column;gap:26px;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:linear-gradient(140deg,var(--primary),#B98A1F 70%);
  display:grid;place-items:center;color:#0A1020;font-weight:800;font-size:17px;
  box-shadow:0 0 22px rgba(233,185,73,.30);
}
.brand-text strong{display:block;font-size:15.5px;line-height:1.3;color:var(--text);font-weight:700}
.brand-text span{display:block;font-family:var(--font-mono);font-size:11px;color:var(--faint);letter-spacing:.12em;margin-top:4px}
.sidebar-nav{display:flex;flex-direction:column;gap:6px}
.sidebar-nav a{
  position:relative;display:block;padding:11px 14px 11px 16px;border-radius:10px;
  color:var(--muted);font-size:15px;font-weight:500;transition:all .2s ease;
}
.sidebar-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--primary);border-radius:2px;transition:height .22s ease;
}
.sidebar-nav a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.sidebar-nav a.active{background:rgba(255,255,255,.06);color:var(--primary);font-weight:650}
.sidebar-nav a.active::before{height:22px}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.sidebar-foot .mini{font-size:12.5px;color:var(--faint);line-height:1.7}
.sidebar-foot .mini a{color:var(--muted)}
.sidebar-foot .mini a:hover{color:var(--primary)}

/*===== 按钮 =====*/
.btn-gold,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:14px;font-size:15.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;text-align:center;
}
.btn-gold{
  background:var(--primary);color:#0A1020;
  box-shadow:0 0 26px rgba(233,185,73,.32);
}
.btn-gold:hover{background:var(--primary-strong);color:#0A1020;transform:translateY(-1px);box-shadow:0 0 34px rgba(255,209,102,.48)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--glass-border);color:var(--text);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:rgba(233,185,73,.55);background:rgba(255,255,255,.08);color:var(--text)}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-block{width:100%}
.link-arrow{font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover span{transform:translateX(4px)}

/*===== 移动端顶栏 =====*/
.app-topbar{
  display:none;position:sticky;top:0;z-index:1030;height:64px;
  align-items:center;justify-content:space-between;gap:12px;padding:0 18px;
  background:rgba(5,10,18,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
}
.app-topbar .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:15px}
.app-topbar .brand-text strong{font-size:14px}
.topbar-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--glass-border);
  background:rgba(255,255,255,.05);color:var(--text);display:grid;place-items:center;cursor:pointer;
}
.topbar-toggle:hover{border-color:rgba(233,185,73,.5)}
.topbar-toggle svg{width:20px;height:20px}
.drawer{background:#070D17 !important;color:var(--text);border-right:1px solid var(--line);width:288px}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer-brand{font-weight:700;font-size:15px;color:var(--text)}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.9);opacity:.75}
.drawer .btn-close:hover{opacity:1}
.drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:22px}

/*===== 主内容 =====*/
.app-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.app-main main{flex:1 0 auto}

/*===== 面包屑 =====*/
.crumbs{padding:26px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--faint)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--faint);opacity:.6}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs .current{color:var(--primary)}

/*===== Hero =====*/
.hero{
  position:relative;overflow:hidden;margin-top:22px;
  border-radius:var(--radius-lg);border:1px solid var(--glass-border);
  background:
    linear-gradient(100deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.86) 46%,rgba(7,12,22,.46) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
}
.hero-inner{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:44px;align-items:center;padding:64px 56px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(233,185,73,.42);color:var(--primary);font-size:12.5px;
  font-family:var(--font-mono);letter-spacing:.08em;background:rgba(233,185,73,.07);
}
.hero h1{margin:20px 0 18px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{color:var(--muted);font-size:16.5px;max-width:560px;margin-bottom:14px}
.hero-lead:last-of-type{margin-bottom:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:8px;
  font-size:12.5px;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.chip b{color:var(--leaf);font-family:var(--font-mono);font-size:11.5px;font-weight:600}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--glass-border);
  background:var(--panel);backdrop-filter:blur(16px);box-shadow:0 20px 60px rgba(0,0,0,.45);
  aspect-ratio:4/3;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.10) 0%,rgba(7,12,22,.72) 100%);
}
.media-timecode{
  position:absolute;top:14px;left:14px;z-index:2;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  padding:5px 10px;border-radius:7px;background:rgba(7,12,22,.72);color:var(--primary);
  border:1px solid rgba(233,185,73,.3);
}
.media-slate{
  position:absolute;bottom:14px;left:14px;right:14px;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.06em;
}
.media-slate .dot{width:8px;height:8px;border-radius:50%;background:var(--berry);display:inline-block;margin-right:6px}

/*===== 通用卡片 =====*/
.card-soft{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card-soft:hover{transform:translateY(-4px);border-color:rgba(233,185,73,.45);box-shadow:0 18px 46px rgba(0,0,0,.42)}
.card-glass{
  background:var(--panel);border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  backdrop-filter:blur(16px);box-shadow:0 20px 60px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.06);
}
.badge-tag{
  display:inline-block;padding:4px 11px;border-radius:7px;font-size:12px;font-weight:600;
  color:var(--primary);border:1px solid rgba(233,185,73,.38);background:rgba(233,185,73,.08);
}
.badge-tag.leaf{color:var(--leaf);border-color:rgba(72,198,161,.38);background:rgba(72,198,161,.08)}

/*===== 概览双栏 =====*/
.intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.82fr);gap:40px;align-items:start}
.intro-copy p{color:var(--muted);max-width:720px}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:11px;align-items:flex-start;color:var(--text);font-size:15.5px}
.check-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:6px;border-radius:5px;
  background:rgba(72,198,161,.14);border:1px solid rgba(72,198,161,.45);
  box-shadow:inset 0 0 0 4px rgba(7,12,22,1);
  background-image:linear-gradient(45deg,transparent 45%,var(--leaf) 45%,var(--leaf) 56%,transparent 56%),
                   linear-gradient(-45deg,transparent 45%,var(--leaf) 45%,var(--leaf) 56%,transparent 56%);
  background-size:11px 11px;background-position:center;background-repeat:no-repeat;
}
.intro-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--glass-border);position:relative}
.intro-media img{width:100%;aspect-ratio:16/11;object-fit:cover;background:linear-gradient(150deg,#0C1424,#050A12)}
.intro-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-size:12.5px;color:var(--muted);
  background:linear-gradient(180deg,transparent,rgba(7,12,22,.9));font-family:var(--font-mono);
}

/*===== 时间线 =====*/
.timeline{display:grid;gap:16px;margin-top:8px}
.tl-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;align-items:start;
  padding:24px 26px;border-radius:var(--radius);background:var(--bg-elev);
  border:1px solid var(--line);border-left:3px solid transparent;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-item:hover{transform:translateY(-3px);border-color:rgba(233,185,73,.45);border-left-color:var(--primary);box-shadow:0 18px 44px rgba(0,0,0,.4)}
.tl-num{
  font-family:var(--font-mono);font-size:22px;font-weight:700;color:var(--primary);
  line-height:1;padding-top:4px;
}
.tl-num small{display:block;font-size:10.5px;color:var(--faint);letter-spacing:.14em;margin-top:6px;font-weight:400}
.tl-body h3{margin-bottom:8px}
.tl-body p{color:var(--muted);font-size:15px;margin:0}
.tl-foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/*===== 数据条 =====*/
.stat-band{
  background:linear-gradient(180deg,rgba(12,20,36,.92),rgba(7,12,22,.92));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  position:relative;
}
.stat-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(233,185,73,.55),transparent);
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.stat-item{border-left:1px solid var(--line);padding-left:22px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-family:var(--font-mono);font-size:clamp(30px,3vw,42px);font-weight:700;color:var(--primary);line-height:1.05}
.stat-num span{font-size:15px;color:var(--muted);margin-left:4px;font-weight:500}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:10px}

/*===== 信息条 =====*/
.info-rows{margin-top:10px;border-top:1px solid var(--line)}
.info-row{
  display:grid;grid-template-columns:220px minmax(0,1fr);gap:28px;
  padding:24px 0;border-bottom:1px solid var(--line);
}
.info-row h3{font-size:16.5px;color:var(--text)}
.info-row h3 span{color:var(--faint);font-family:var(--font-mono);font-size:12px;display:block;margin-bottom:6px;letter-spacing:.1em}
.info-row p{color:var(--muted);font-size:15px;margin:0}

/*===== FAQ =====*/
.faq-wrap{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:48px;align-items:start}
.faq-aside p{color:var(--muted);font-size:15.5px}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-color:var(--text);--bs-accordion-border-color:var(--line);--bs-accordion-btn-color:var(--text);--bs-accordion-active-color:var(--primary);--bs-accordion-active-bg:rgba(233,185,73,.05);--bs-accordion-btn-focus-box-shadow:none}
.accordion-item{
  background:var(--bg-elev);border:1px solid var(--line) !important;border-radius:14px !important;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease;
}
.accordion-item:hover{border-color:rgba(233,185,73,.35) !important}
.accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:600;
  padding:18px 58px 18px 22px;box-shadow:none !important;border-radius:14px !important;
  border-left:3px solid transparent;transition:all .2s ease;
}
.accordion-button:not(.collapsed){
  color:var(--primary);background:rgba(233,185,73,.05);border-left-color:var(--primary);
}
.accordion-button::after{
  content:"+";background-image:none !important;transform:none !important;
  position:absolute;right:18px;top:50%;margin-top:-14px;
  width:28px;height:28px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:50%;color:var(--primary);
  font-size:18px;font-weight:500;line-height:1;
}
.accordion-button:not(.collapsed)::after{content:"−";border-color:rgba(233,185,73,.5)}
.accordion-body{padding:0 22px 20px 22px;color:var(--muted);font-size:15.5px;line-height:1.85}

/*===== 联系卡 =====*/
.contact-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:0;overflow:hidden}
.contact-form{padding:44px 46px}
.contact-side{
  padding:44px 42px;background:linear-gradient(160deg,rgba(233,185,73,.10),rgba(12,20,36,.6) 55%,rgba(12,20,36,.9));
  border-left:1px solid var(--glass-border);
}
.form-label{font-size:13.5px;color:var(--muted);margin-bottom:8px;display:block;font-weight:500}
.form-control,.form-select{
  height:48px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  border-radius:12px;font-size:15px;padding:0 14px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.form-control{height:auto;min-height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.form-control::placeholder{color:var(--faint)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.06);border-color:var(--primary);color:var(--text);
  box-shadow:0 0 0 3px rgba(233,185,73,.16);outline:none;
}
.form-select option{background:#0C1424;color:var(--text)}
.form-note{font-size:12.5px;color:var(--faint);margin-top:12px}
.form-note.warn{color:var(--berry)}
.field{margin-bottom:18px}
.side-list{display:grid;gap:16px;margin-top:22px}
.side-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.side-list li b{display:block;font-size:12.5px;color:var(--faint);font-family:var(--font-mono);letter-spacing:.08em;margin-bottom:2px;font-weight:500}
.side-box{
  margin-top:26px;padding:18px 20px;border-radius:14px;background:rgba(7,12,22,.55);
  border:1px solid var(--glass-border);font-size:13.5px;color:var(--muted);
}
.side-box strong{color:var(--primary);display:block;font-size:14px;margin-bottom:6px}

/*===== 页脚 =====*/
.site-footer{
  margin-top:auto;border-top:1px solid var(--line);
  background:#050A12;padding:64px 32px 26px;max-width:1320px;margin-left:auto;margin-right:auto;
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr);gap:44px}
.footer-brand strong{display:block;font-size:17px;color:var(--text);margin-bottom:12px}
.footer-brand p{color:var(--muted);font-size:14px;max-width:420px;margin:0}
.footer-col h4{font-size:13px;font-family:var(--font-mono);letter-spacing:.14em;color:var(--faint);text-transform:uppercase;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--muted)}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--faint);
}

/*===== 响应式 =====*/
@media (max-width:1399.98px){
  .wrap{max-width:1200px}
}
@media (max-width:1199.98px){
  :root{--sidebar-w:232px}
  .hero-inner{padding:52px 40px;gap:34px}
  .contact-form,.contact-side{padding:36px 30px}
  .faq-wrap{gap:34px}
}
@media (max-width:991.98px){
  .app-sidebar{display:none}
  .app-topbar{display:flex}
  .app-main{margin-left:0}
  .wrap{padding:0 22px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .hero-inner{grid-template-columns:1fr;padding:40px 26px;gap:28px}
  .hero-media{aspect-ratio:16/10}
  .hero-actions .btn-gold,.hero-actions .btn-ghost{flex:1 1 200px}
  .intro-grid{grid-template-columns:1fr;gap:30px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .info-row{grid-template-columns:1fr;gap:8px}
  .faq-wrap{grid-template-columns:1fr;gap:26px}
  .contact-grid{grid-template-columns:1fr}
  .contact-side{border-left:0;border-top:1px solid var(--glass-border)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .site-footer{padding:52px 22px 22px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:56px 0}
  .hero{margin-top:16px}
  .tl-item{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:20px 18px}
  .tl-num{font-size:18px}
  .crumbs{padding:18px 0 0}
  .accordion-button{font-size:16px;padding:16px 52px 16px 18px}
  .contact-form,.contact-side{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519.98px){
  .wrap{padding:0 16px}
  .hero-inner{padding:32px 20px}
  .stat-grid{grid-template-columns:1fr;gap:20px}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:18px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .hero-actions{flex-direction:column}
  .hero-actions .btn-gold,.hero-actions .btn-ghost{width:100%}
  .card-soft{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category6 */
:root{
  --bg:#070C16;
  --bg-elev:#0C1424;
  --panel:rgba(14,23,42,.68);
  --glass-border:rgba(255,255,255,.12);
  --primary:#E9B949;
  --primary-strong:#FFD166;
  --leaf:#48C6A1;
  --berry:#FF7A8A;
  --text:#EAF0FA;
  --muted:#A7B3C8;
  --faint:#6D7A91;
  --line:rgba(255,255,255,.10);
  --shadow-lg:0 24px 70px rgba(0,0,0,.45);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shell-w:248px;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",SFMono-Regular,Consolas,"Liberation Mono",monospace;

  --bs-body-bg:#070C16;
  --bs-body-color:#EAF0FA;
  --bs-primary:#E9B949;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 78% -10%, rgba(233,185,73,.10), transparent 60%),
    radial-gradient(700px 420px at 10% 110%, rgba(72,198,161,.07), transparent 65%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-strong)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;letter-spacing:0;color:var(--text);font-weight:650}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary-strong);outline-offset:3px;border-radius:6px}
.mono{font-family:var(--mono);font-size:13px;letter-spacing:.04em}

/* ============ 侧栏 App Shell ============ */
.shell{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--shell-w);
  background:linear-gradient(180deg,#080F1C 0%,#060B14 100%);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  z-index:1040;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  padding:6px 6px 12px;
  border-bottom:1px solid var(--line);
}
.brand-mark{
  width:38px;height:38px;
  flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(145deg,var(--primary),#C9932C);
  color:#10131A;
  font-weight:700;
  font-size:18px;
  box-shadow:0 0 22px rgba(233,185,73,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.35}
.brand-text strong{font-size:15px;color:var(--text);letter-spacing:.01em}
.brand-text small{font-size:11.5px;color:var(--faint);letter-spacing:.06em}
.sidebar-label{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--faint);
  padding:0 8px;
  text-transform:uppercase;
}
.sidebar-nav{display:flex;flex-direction:column;gap:4px}
.sidebar-nav a{
  position:relative;
  display:flex;
  align-items:center;
  padding:11px 14px;
  border-radius:12px;
  color:var(--muted);
  font-size:15px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.sidebar-nav a:hover,
.sidebar-nav a:focus-visible{background:rgba(255,255,255,.055);color:var(--text);transform:translateX(2px)}
.sidebar-nav a.active{
  color:var(--primary);
  background:rgba(255,255,255,.06);
  font-weight:600;
}
.sidebar-nav a.active::before{
  content:"";
  position:absolute;left:0;top:10px;bottom:10px;
  width:3px;border-radius:3px;
  background:var(--primary);
  box-shadow:0 0 14px rgba(233,185,73,.65);
}
.shell-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.shell-contact{
  font-size:12.5px;
  color:var(--faint);
  line-height:1.75;
  margin:12px 4px 0;
}
.shell-contact .mono{color:var(--muted);font-size:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15.5px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary-glow{
  background:linear-gradient(135deg,var(--primary-strong),var(--primary));
  color:#161207;
  box-shadow:0 0 26px rgba(233,185,73,.32);
}
.btn-primary-glow:hover,
.btn-primary-glow:focus-visible{
  color:#161207;
  transform:translateY(-1px);
  box-shadow:0 0 36px rgba(233,185,73,.5);
  background:linear-gradient(135deg,#FFE08A,var(--primary-strong));
}
.btn-ghost{
  background:rgba(255,255,255,.045);
  border-color:var(--glass-border);
  color:var(--text);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover,
.btn-ghost:focus-visible{
  border-color:rgba(233,185,73,.6);
  background:rgba(255,255,255,.08);
  color:var(--primary-strong);
  transform:translateY(-1px);
}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-block{width:100%}

/* ============ 移动顶栏 ============ */
.topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:1035;
  height:64px;
  align-items:center;
  justify-content:space-between;
  padding:0 18px;
  background:rgba(7,12,22,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar .brand{padding:0;border:0;gap:10px}
.topbar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:15px;border-radius:10px}
.topbar .brand-text strong{font-size:14px}
.topbar .brand-text small{display:none}
.hamburger{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:17px;
  cursor:pointer;
}
.hamburger:hover{border-color:rgba(233,185,73,.55);color:var(--primary)}
.offcanvas.side-drawer{
  background:#0A1220;
  color:var(--text);
  width:286px;
  border-right:1px solid var(--line);
}
.side-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.side-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.75}
.side-drawer .offcanvas-body{padding:18px}
.drawer-cta{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}

/* ============ 主内容容器 ============ */
.main-wrap{margin-left:var(--shell-w);position:relative;z-index:1}
.wrap{max-width:1320px;margin:0 auto;padding:0 32px}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--faint);
  padding:26px 0 0;
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:rgba(255,255,255,.22)}
.crumbs .now{color:var(--primary)}

/* ============ Hero ============ */
.hero{
  position:relative;
  margin-top:22px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:
    linear-gradient(100deg,rgba(6,11,20,.96) 0%,rgba(7,13,24,.88) 46%,rgba(9,16,30,.42) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat,
    linear-gradient(135deg,#0A1424,#070C16);
  box-shadow:var(--shadow-lg);
}
.hero::after{
  content:"TC 00:00:12:08";
  position:absolute;right:26px;bottom:20px;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:rgba(234,240,250,.35);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:36px;
  padding:52px 44px 56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--primary);
  margin-bottom:16px;
}
.slate-bar{
  width:26px;height:8px;border-radius:2px;
  background:repeating-linear-gradient(90deg,var(--primary) 0 5px,rgba(233,185,73,.18) 5px 10px);
}
.hero h1{
  font-size:clamp(38px,4.4vw,58px);
  line-height:1.14;
  font-weight:700;
  margin-bottom:18px;
}
.hero .lead{
  font-size:17.5px;
  line-height:1.85;
  color:var(--muted);
  max-width:640px;
  margin-bottom:14px;
}
.hero .lead strong{color:var(--text);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{
  font-size:12.5px;
  color:var(--muted);
  padding:5px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.03);
}
.hero-media{
  position:relative;
  margin:0;
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:16/11;
  border:1px solid var(--glass-border);
  background:linear-gradient(140deg,#101C31,#0A1220);
  box-shadow:0 20px 60px rgba(0,0,0,.42);
}
.hero-media img{width:100%;height:100%;object-fit:cover;position:relative;z-index:2}
.img-fallback{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;letter-spacing:.18em;
  color:rgba(234,240,250,.32);
  z-index:1;
}
.media-tag{
  position:absolute;left:14px;top:14px;z-index:3;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;
  padding:5px 10px;border-radius:8px;
  background:rgba(7,12,22,.74);
  border:1px solid var(--glass-border);
  color:var(--primary);
}
.media-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;
  width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(233,185,73,.92);
  color:#161207;font-size:18px;
  box-shadow:0 0 30px rgba(233,185,73,.45);
}

/* ============ 板块通用 ============ */
.section{padding-top:92px}
.section-head{max-width:840px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(26px,2.6vw,34px);
  line-height:1.28;
  margin-bottom:12px;
}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.section-kicker{
  display:block;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--primary);
  margin-bottom:12px;
}

/* ============ 依据信息条 ============ */
.index-strip{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
}
.strip-item{
  background:#0A1220;
  padding:26px 26px 28px;
  transition:background .25s ease;
}
.strip-item:hover{background:#0C1626}
.strip-no{
  display:block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--primary);
  margin-bottom:12px;
}
.strip-item h3{font-size:17.5px;margin-bottom:8px}
.strip-item p{font-size:14.5px;line-height:1.78;color:var(--muted);margin:0}

/* ============ 问答区 ============ */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 316px;
  gap:34px;
  align-items:start;
}
.faq-group + .faq-group{margin-top:38px}
.faq-group h3.group-title{
  font-size:19px;
  display:flex;align-items:center;gap:12px;
  margin-bottom:14px;
  color:var(--text);
}
.faq-group h3.group-title span{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--primary);
  padding:3px 9px;
  border:1px solid rgba(233,185,73,.34);
  border-radius:999px;
}
.faq-panel{
  background:var(--panel);
  border:1px solid var(--glass-border);
  border-radius:var(--r-md);
  padding:6px 20px;
  backdrop-filter:blur(14px);
}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-color:var(--text);--bs-accordion-border-color:transparent;--bs-accordion-btn-color:var(--text);--bs-accordion-btn-bg:transparent;--bs-accordion-active-color:var(--primary);--bs-accordion-active-bg:transparent;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-body-padding-x:0}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:last-child{border-bottom:0}
.accordion-header{margin:0}
.accordion-button{
  position:relative;
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  padding:18px 42px 18px 16px;
  border-radius:12px;
  box-shadow:none;
  transition:color .2s ease,background .2s ease;
}
.accordion-button:hover{color:var(--primary-strong)}
.accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(233,185,73,.055);
}
.accordion-button:not(.collapsed)::before{
  content:"";
  position:absolute;left:0;top:12px;bottom:12px;
  width:3px;border-radius:3px;
  background:var(--primary);
}
.accordion-button::after{
  content:"+";
  background-image:none;
  position:absolute;
  right:12px;top:50%;
  transform:translateY(-50%);
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:400;
  color:var(--primary);
  transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
}
.accordion-body{
  padding:0 42px 20px 16px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
}
.accordion-body p{margin:0}

/* 侧卡 */
.side-card{
  position:sticky;
  top:24px;
  background:var(--panel);
  border:1px solid var(--glass-border);
  border-radius:var(--r-md);
  padding:26px 24px;
  backdrop-filter:blur(16px);
  box-shadow:0 20px 60px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.06);
}
.side-card h3{font-size:19px;margin-bottom:10px}
.side-card p{font-size:14.5px;color:var(--muted);line-height:1.78}
.side-card .mini{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--faint);
  margin:14px 0 0;
}
.side-rule{
  height:1px;
  background:repeating-linear-gradient(90deg,rgba(233,185,73,.5) 0 6px,transparent 6px 12px);
  margin:18px 0;
}

/* ============ 资源列表 ============ */
.resource-list{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.resource-item{
  display:grid;
  grid-template-columns:112px minmax(0,1fr) 40px;
  gap:20px;
  align-items:center;
  padding:16px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:#0A1220;
  color:var(--text);
  transition:border-color .22s ease,transform .22s ease,background .22s ease,box-shadow .22s ease;
}
.resource-item:hover,
.resource-item:focus-visible{
  border-color:rgba(233,185,73,.45);
  transform:translateY(-3px);
  background:#0C1626;
  box-shadow:0 18px 44px rgba(0,0,0,.38);
  color:var(--text);
}
.thumb{
  position:relative;
  width:112px;
  aspect-ratio:16/11;
  border-radius:12px;
  overflow:hidden;
  background:linear-gradient(140deg,#101C31,#0A1220);
}
.thumb img{width:100%;height:100%;object-fit:cover;position:relative;z-index:2}
.resource-body h3{font-size:17.5px;margin-bottom:6px;transition:color .2s ease}
.resource-item:hover .resource-body h3{color:var(--primary-strong)}
.resource-body p{font-size:14.5px;color:var(--muted);margin:0 0 10px;line-height:1.72}
.badges{display:flex;flex-wrap:wrap;gap:8px}
.badges span{
  font-size:11.5px;
  color:var(--muted);
  padding:3px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.03);
}
.badges span.hl{color:var(--leaf);border-color:rgba(72,198,161,.34)}
.arrow{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);
  transition:transform .22s ease,color .22s ease,border-color .22s ease,background .22s ease;
}
.resource-item:hover .arrow{
  transform:translateX(4px);
  color:var(--primary);
  border-color:rgba(233,185,73,.55);
  background:rgba(233,185,73,.08);
}

/* ============ CTA 玻璃卡 ============ */
.cta-card{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:40px;
  align-items:center;
  padding:44px;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-border);
  background:
    linear-gradient(120deg,rgba(14,23,42,.82),rgba(12,20,36,.6)),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-card h2{font-size:clamp(25px,2.5vw,32px);line-height:1.3;margin-bottom:14px}
.cta-card p{color:var(--muted);font-size:16px;margin:0}
.cta-points{display:flex;flex-direction:column;gap:9px;margin-top:22px}
.cta-points li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  color:var(--muted);
}
.cta-points li::before{
  content:"";
  position:absolute;left:0;top:.68em;
  width:10px;height:2px;border-radius:2px;
  background:var(--primary);
}
.cta-panel{
  background:rgba(7,12,22,.6);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.cta-panel .mono{color:var(--muted);margin:6px 0 0;font-size:12.5px}
.cta-panel .tip{font-size:13px;color:var(--faint);margin:0;line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,20,36,.55),rgba(6,11,20,.95));
  padding-top:52px;
  padding-bottom:26px;
}
.site-footer::before{
  content:"";
  display:block;
  height:6px;
  margin-top:-52px;
  margin-bottom:46px;
  background:repeating-linear-gradient(90deg,rgba(233,185,73,.32) 0 8px,transparent 8px 20px);
  opacity:.5;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .9fr 1fr;
  gap:36px;
}
.footer-brand strong{display:block;font-size:17px;margin-bottom:10px;color:var(--text)}
.footer-brand p{font-size:14px;color:var(--faint);line-height:1.8;margin:0;max-width:420px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col li{font-size:14px;color:var(--faint);line-height:1.6}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:40px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  font-size:12.5px;
  color:var(--faint);
}
.footer-bottom .mono{color:var(--faint);font-size:12px;letter-spacing:.08em}

/* ============ 响应式 ============ */
@media (min-width:1200px) and (max-width:1399px){
  :root{--shell-w:232px}
}
@media (min-width:992px) and (max-width:1199px){
  :root{--shell-w:208px}
  .wrap{padding:0 24px}
  .faq-layout{grid-template-columns:minmax(0,1fr) 280px;gap:26px}
  .hero-grid{padding:44px 32px 48px;gap:28px}
  .cta-card{padding:36px;gap:30px}
}
@media (max-width:991.98px){
  .shell{display:none}
  .topbar{display:flex}
  .main-wrap{margin-left:0}
  .wrap{padding:0 22px}
  .hero-grid{grid-template-columns:1fr;padding:38px 26px 42px;gap:26px}
  .hero-media{aspect-ratio:16/9}
  .hero::after{display:none}
  .section{padding-top:64px}
  .index-strip{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr}
  .side-card{position:static}
  .cta-card{grid-template-columns:1fr;padding:30px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .site-footer{margin-top:66px;padding-top:40px;padding-bottom:22px}
  .site-footer::before{margin-top:-40px;margin-bottom:34px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .section{padding-top:54px}
  .hero{margin-top:16px;border-radius:20px}
  .hero-grid{padding:30px 20px 34px}
  .hero h1{font-size:clamp(32px,8vw,40px)}
  .hero .lead{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-tags{gap:8px;margin-top:20px}
  .resource-item{grid-template-columns:84px minmax(0,1fr);gap:14px;padding:14px}
  .thumb{width:84px;border-radius:10px}
  .resource-item .arrow{display:none}
  .cta-card{padding:26px 20px;border-radius:20px}
  .faq-panel{padding:4px 14px}
  .accordion-button{font-size:16px;padding:16px 38px 16px 12px}
  .accordion-body{padding:0 16px 18px 12px;font-size:15px}
  .side-card{padding:22px 20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .strip-item{padding:22px 20px}
}
@media (max-width:520px){
  .brand-text strong{font-size:13.5px}
  .section-head h2{font-size:24px}
  .badges span{font-size:11px}
}