/* roulang page: index */
:root{
  --bg-0:#060B14;--bg-1:#0B1524;--bg-2:#0E1B2B;
  --surface:rgba(255,255,255,.05);--surface-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --brand:#19E3B0;--brand-deep:#0B8F76;--brand-glow:rgba(25,227,176,.28);
  --gold:#FFC24B;--gold-deep:#E39A16;--live:#FF5A5F;
  --text-1:#EAF2FF;--text-2:#A7B6CC;--text-3:#6C7F99;
  --r-card:16px;--r-kv:24px;--r-btn:12px;--r-img:14px;
  --sh:0 8px 24px rgba(3,8,18,.45);--sh-h:0 14px 36px rgba(3,8,18,.6);
  --glass:rgba(255,255,255,.05);
  --side-w:260px;--side-w-sm:72px;--top-h:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg-0);color:var(--text-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .16s ease}
a:hover{color:#5cf0cd}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--text-1)}
p{margin:0}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.glass{background:var(--glass);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);border:1px solid var(--line)}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
.num,time,b,strong{font-variant-numeric:tabular-nums}

/* ---------- App shell ---------- */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);z-index:1040;
  display:flex;flex-direction:column;padding:22px 16px;
  background:linear-gradient(180deg,#08111F 0%,#060B14 100%);
  border-right:1px solid var(--line);transition:width .2s ease,padding .2s ease;
}
.brand{display:flex;align-items:center;gap:10px;padding:6px 6px 18px;margin-bottom:16px;border-bottom:1px solid var(--line);color:var(--text-1)}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04140F;
  font-weight:700;font-size:18px;box-shadow:0 0 0 1px rgba(25,227,176,.35),0 6px 18px var(--brand-glow);
}
.brand-text strong{display:block;font-size:16px;font-weight:700;line-height:1.3}
.brand-text em{display:block;font-style:normal;font-size:10px;letter-spacing:.18em;color:var(--text-3);margin-top:3px}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto;overflow-x:visible}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;height:48px;padding:0 14px;
  border-radius:16px;color:var(--text-2);font-size:15px;
  transition:background .16s ease,color .16s ease;
}
.nav-item i{width:18px;text-align:center;font-size:16px;flex:0 0 18px}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--brand);transition:height .16s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text-1)}
.nav-item:hover::before{height:18px}
.nav-item.active{background:rgba(25,227,176,.12);color:var(--text-1)}
.nav-item.active::before{height:22px}
.side-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.side-note{margin:8px 4px 0;font-size:12px;color:var(--text-3);line-height:1.6}

/* ---------- Buttons ---------- */
.btn-gold,.btn-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);font-weight:600;font-size:15px;
  border:0;cursor:pointer;transition:transform .16s ease,filter .16s ease,box-shadow .16s ease,background .16s ease;
}
.btn-gold{
  color:#1A1206;background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  box-shadow:0 0 0 1px rgba(255,194,75,.35),0 10px 30px rgba(227,154,22,.28);
}
.btn-gold:hover{color:#1A1206;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,194,75,.5),0 14px 34px rgba(227,154,22,.4)}
.btn-gold:active{transform:translateY(0)}
.btn-brand{
  color:#04140F;background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 0 1px rgba(25,227,176,.35),0 10px 30px var(--brand-glow);
}
.btn-brand:hover{color:#04140F;filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{color:var(--text-1);background:transparent;border:1px solid var(--line)}
.btn-ghost:hover{color:var(--text-1);background:rgba(255,255,255,.08);border-color:rgba(25,227,176,.4);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.w-100{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .16s ease}
.link-arrow:hover i{transform:translateX(2px)}

/* ---------- Badges ---------- */
.badge-glass{display:inline-block;padding:3px 12px;border-radius:999px;font-size:12px;color:var(--text-2);background:var(--surface);border:1px solid var(--line)}
.badge-gold{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;color:var(--gold);background:rgba(255,194,75,.12);border:1px solid rgba(255,194,75,.45)}
.badge-live{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;color:var(--live);background:rgba(255,90,95,.12);border:1px solid rgba(255,90,95,.4)}

/* ---------- Topbar / drawer ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:var(--top-h);z-index:1035;
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  background:rgba(6,11,20,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
}
.hamburger{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--text-1);display:grid;place-items:center}
.topbar-brand{font-weight:700;font-size:16px;color:var(--text-1)}
.app-drawer{background:linear-gradient(180deg,#08111F,#060B14);color:var(--text-1);border-right:1px solid var(--line);width:290px}
.app-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.drawer-brand{font-weight:700;font-size:16px}
.btn-close-drawer{background:transparent;border:0;color:var(--text-2);font-size:20px;line-height:1}
.app-drawer .offcanvas-body{padding:14px 12px}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{display:flex;align-items:center;gap:12px;height:48px;padding:0 14px;border-radius:14px;color:var(--text-2);font-size:15px}
.drawer-nav a i{width:18px;text-align:center}
.drawer-nav a:hover{background:rgba(255,255,255,.06);color:var(--text-1)}
.drawer-nav a.active{background:rgba(25,227,176,.12);color:var(--text-1)}
.drawer-foot{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3)}
.offcanvas-backdrop.show{background:rgba(4,8,16,.7);opacity:1}

/* ---------- Main ---------- */
.app-main{margin-left:var(--side-w);transition:margin-left .2s ease;min-height:100vh;display:flex;flex-direction:column}
.crumb-bar{
  height:44px;display:flex;align-items:center;position:sticky;top:0;z-index:1020;
  background:rgba(255,255,255,.03);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
}
.crumb{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb .cur{color:var(--text-3)}
.crumb .sep{color:var(--text-3);opacity:.6}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:560px;height:78vh;display:flex;align-items:center;overflow:hidden;border-radius:0 0 var(--r-kv) var(--r-kv)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.03)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.55) 0%,rgba(6,11,20,.92) 100%)}
.hero-grid{
  position:absolute;inset:0;z-index:1;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-glow{position:absolute;top:-120px;right:-80px;width:460px;height:460px;z-index:1;border-radius:50%;background:radial-gradient(circle,rgba(25,227,176,.30),transparent 70%)}
.hero .container-wide{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:center}
.hero-copy{max-width:620px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;padding:5px 14px;
  border-radius:999px;font-size:13px;letter-spacing:.06em;color:var(--brand);
  background:rgba(25,227,176,.10);border:1px solid rgba(25,227,176,.25);
}
.hero h1{font-size:clamp(28px,4.4vw,52px);font-weight:700;line-height:1.15;margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-card{border-radius:var(--r-card);padding:22px;box-shadow:var(--sh)}
.hero-card-title{margin:0 0 6px;font-size:13px;letter-spacing:.08em;color:var(--text-3)}
.hero-card ul{list-style:none}
.hero-card li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line)}
.hero-card li:last-child{border-bottom:0;padding-bottom:0}
.hero-card li span{font-size:14px;color:var(--text-2)}
.hero-card li b{font-size:22px;font-weight:700;color:var(--brand);text-shadow:0 0 18px var(--brand-glow)}
.hero-card li b.ok{color:var(--brand)}
.brand-strip{height:12px;background:linear-gradient(90deg,var(--brand-deep),var(--brand) 45%,rgba(25,227,176,0))}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section-tight{padding:56px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head h2{font-size:clamp(22px,3vw,34px);font-weight:700;line-height:1.25;margin-bottom:10px}
.sec-head p{color:var(--text-2);max-width:640px;font-size:15px}
.sec-head .head-side{flex:0 0 auto;padding-bottom:6px}

/* ---------- Trust ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust-item{border-radius:14px;padding:18px;box-shadow:var(--sh);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.trust-item:hover{transform:translateY(-2px);box-shadow:var(--sh-h);border-color:rgba(25,227,176,.35)}
.trust-item i{font-size:18px;color:var(--brand);margin-bottom:12px;display:block}
.trust-item b{display:block;font-size:20px;font-weight:700;margin-bottom:4px}
.trust-item p{font-size:13px;color:var(--text-2);line-height:1.7}

/* ---------- Flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;list-style:none}
.flow-grid li{position:relative;padding-right:20px}
.flow-grid li::after{
  content:"";position:absolute;top:26px;right:0;width:calc(100% - 40px);
  height:1px;border-top:1px dashed rgba(255,255,255,.18);left:58px;
}
.flow-grid li:last-child::after{display:none}
.flow-num{
  display:inline-block;font-size:26px;font-weight:700;line-height:1;margin-bottom:16px;
  font-family:"DIN Alternate",Barlow,ui-monospace,monospace;
  color:transparent;-webkit-text-stroke:1px var(--brand);letter-spacing:.02em;
}
.flow-grid h3{font-size:18px;font-weight:600;margin-bottom:8px}
.flow-grid p{font-size:14px;color:var(--text-2)}

/* ---------- Reward ---------- */
.reward-card{
  position:relative;height:100%;border-radius:var(--r-card);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.reward-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.75;transition:opacity .16s}
.reward-card:hover{transform:translateY(-2px);box-shadow:var(--sh-h);border-color:rgba(255,194,75,.35)}
.reward-card:hover::before{opacity:1}
.reward-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-1);overflow:hidden}
.reward-thumb img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-img) var(--r-img) 0 0}
.reward-thumb .badge-gold{position:absolute;top:12px;right:12px}
.reward-body{padding:20px 22px 24px}
.reward-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.reward-body p{font-size:14px;color:var(--text-2);margin-bottom:16px;min-height:48px}

/* ---------- Progress panel ---------- */
.pp-panel{border-radius:var(--r-card);padding:32px;box-shadow:var(--sh)}
.pp-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}
.pp-head h2{font-size:22px;font-weight:700}
.pp-bar{position:relative;height:10px;border-radius:999px;background:rgba(255,255,255,.08);margin-bottom:40px}
.pp-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-deep),var(--brand));position:relative}
.pp-bar span::after{content:"";position:absolute;right:-4px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 14px var(--brand-glow)}
.w-52{width:52%}
.mile-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mile{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px}
.mile i{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:11px}
.mile.done i{background:var(--brand);color:#04140F}
.mile.now i{border:2px solid var(--brand);color:var(--brand);animation:pulse 1.8s ease-in-out infinite}
.mile.todo i{border:2px solid var(--text-3);color:var(--text-3)}
.mile b{font-size:14px;font-weight:600}
.mile span{font-size:12px;color:var(--text-3)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(25,227,176,.45)}50%{box-shadow:0 0 0 8px rgba(25,227,176,0)}}

/* ---------- News / CMS ---------- */
.news-card{
  height:100%;display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-h);border-color:rgba(25,227,176,.30)}
.news-card:hover h3 a{color:var(--brand)}
.news-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-1);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;gap:10px}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5}
.news-body h3 a{color:var(--text-1)}
.news-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.news-meta time{font-size:13px;color:var(--text-3)}
.empty-state{padding:48px 20px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-card);background:rgba(255,255,255,.02)}
.empty-state i{font-size:48px;color:var(--text-3);display:block;margin-bottom:16px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:20px}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--r-card);padding:36px 40px;display:flex;align-items:center;
  justify-content:space-between;gap:32px;box-shadow:var(--sh);
  background:linear-gradient(120deg,rgba(25,227,176,.10),rgba(255,255,255,.04) 60%);
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:var(--glass);border:1px solid var(--line)!important;border-radius:14px!important;
  margin-bottom:12px;overflow:hidden;backdrop-filter:blur(16px) saturate(140%);
}
.accordion-button{
  background:transparent!important;color:var(--text-1);font-size:16px;font-weight:600;
  padding:18px 22px;box-shadow:none!important;line-height:1.6;
}
.accordion-button:not(.collapsed){color:var(--brand);background:rgba(25,227,176,.06)!important}
.accordion-button::after{
  content:"+";background-image:none!important;width:auto;height:auto;font-size:22px;line-height:1;
  color:var(--brand);display:flex;align-items:center;justify-content:center;transition:transform .2s ease;
}
.accordion-button:hover::after{transform:rotate(90deg)}
.accordion-button:not(.collapsed)::after{content:"−"}
.accordion-body{padding:4px 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- Footer ---------- */
.site-footer{margin-top:auto;background:linear-gradient(180deg,#08111F,#060B14);border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px}
.foot-brand strong{font-size:16px;font-weight:700}
.foot-desc{font-size:14px;color:var(--text-2);max-width:340px;line-height:1.8}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:18px}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.foot-col a{font-size:14px;color:var(--text-2);display:inline-block;transition:color .16s ease,transform .16s ease}
.foot-col a:hover{color:var(--brand);transform:translateX(2px)}
.foot-col p{font-size:14px;color:var(--text-2)}
.foot-bottom{margin-top:48px;border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* ---------- Responsive ---------- */
@media (max-width:1399.98px){
  .hero-copy{max-width:620px}
  .container-wide{padding:0 24px}
}
@media (min-width:992px) and (max-width:1199.98px){
  .app-sidebar{width:var(--side-w-sm);padding:18px 10px;align-items:center}
  .app-main{margin-left:var(--side-w-sm)}
  .brand{border-bottom:0;margin-bottom:12px;padding:4px}
  .brand-text{display:none}
  .side-nav{width:100%}
  .nav-item{justify-content:center;padding:0}
  .nav-label{display:none}
  .nav-item::after{
    content:attr(data-label);position:absolute;left:58px;top:50%;transform:translate(-6px,-50%);
    white-space:nowrap;background:#0E1B2B;border:1px solid var(--line);color:var(--text-1);
    font-size:13px;padding:6px 12px;border-radius:10px;opacity:0;pointer-events:none;
    transition:opacity .16s ease,transform .16s ease;z-index:30;
  }
  .nav-item:hover::after{opacity:1;transform:translate(0,-50%)}
  .side-foot{width:100%}
  .side-foot .btn-brand span{display:none}
  .side-foot .btn-brand{padding:12px 0}
  .side-note{display:none}
  .hero-inner{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
}
@media (max-width:991.98px){
  .app-sidebar{display:none}
  .app-main{margin-left:0;padding-top:var(--top-h)}
  .topbar{display:flex}
  .crumb-bar{top:var(--top-h)}
  .hero{height:auto;min-height:0;padding:64px 0 56px;border-radius:0 0 18px 18px}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-actions .btn-gold,.hero-actions .btn-ghost{flex:1 1 auto}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:1fr 1fr;gap:28px}
  .flow-grid li{padding-right:0}
  .flow-grid li::after{display:none}
  .flow-grid li{padding-left:16px;border-left:1px dashed rgba(255,255,255,.18)}
  .mile-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-band .btn-gold{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:64px 0}
}
@media (max-width:767.98px){
  .trust-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .mile-grid{grid-template-columns:1fr 1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .sec-head .head-side{padding-bottom:0}
  .hero h1{font-size:clamp(26px,7vw,34px)}
  .pp-panel{padding:24px 20px}
}
@media (max-width:575.98px){
  .container-wide{padding:0 16px}
  .section{padding:48px 0}
  .hero-grid{display:none}
  .hero-actions{flex-direction:column}
  .hero-actions .btn-gold,.hero-actions .btn-ghost{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:6px}
  .reward-body p{min-height:0}
}

/* roulang page: article */
:root{
  --bg-0:#060B14;
  --bg-1:#0B1524;
  --bg-2:#0E1B2B;
  --surface:rgba(255,255,255,.05);
  --surface-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --brand:#19E3B0;
  --brand-deep:#0B8F76;
  --brand-glow:rgba(25,227,176,.28);
  --gold:#FFC24B;
  --gold-deep:#E39A16;
  --live:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A7B6CC;
  --text-3:#6C7F99;
  --radius:16px;
  --radius-sm:12px;
  --radius-lg:24px;
  --shadow-1:0 8px 24px rgba(3,8,18,.45);
  --shadow-2:0 14px 36px rgba(3,8,18,.6);
  --sidebar-w:260px;
  --rail-w:72px;
  --topbar-h:56px;
  --strip-h:44px;
  --ease:.18s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;
  min-height:100vh;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 420px at 88% -6%,rgba(25,227,176,.14),transparent 62%),
    radial-gradient(620px 380px at 4% 4%,rgba(255,194,75,.06),transparent 66%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
::selection{background:rgba(25,227,176,.32);color:#03120D}
.num{font-variant-numeric:tabular-nums;font-family:"DIN Alternate","Barlow",ui-monospace,monospace}

/* ===== 布局骨架 ===== */
.app-shell{position:relative;z-index:1;min-height:100vh}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  display:flex;
  flex-direction:column;
  padding:22px 16px 18px;
  background:linear-gradient(180deg,#08111F 0%,#060B14 68%);
  border-right:1px solid var(--line);
  z-index:1040;
  overflow-y:auto;
}
.sidebar-brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:4px 8px 18px;
  border-bottom:1px solid var(--line);
}
.brand-mark{
  flex:0 0 auto;
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04140F;
  font-weight:800;
  font-size:19px;
  box-shadow:0 0 0 1px rgba(25,227,176,.35),0 8px 22px var(--brand-glow);
}
.sidebar-brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.sidebar-brand-text strong{font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.sidebar-brand-text em{
  font-style:normal;
  font-size:10px;
  letter-spacing:.18em;
  color:var(--text-3);
  text-transform:uppercase;
  white-space:nowrap;
}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:20px}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:48px;
  padding:0 14px;
  border-radius:12px;
  color:var(--text-2);
  font-size:15px;
  transition:background-color var(--ease),color var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:15px;flex:0 0 auto}
.nav-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:3px;height:20px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  transform:translateY(-50%) scaleY(0);
  transform-origin:center;
  transition:transform var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text-1)}
.nav-item:hover::before{transform:translateY(-50%) scaleY(1)}
.nav-item.active{background:rgba(25,227,176,.12);color:var(--text-1)}
.nav-item.active::before{transform:translateY(-50%) scaleY(1)}
.nav-item.active i{color:var(--brand)}
.sidebar-cta{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:10px}
.sidebar-cta .btn{width:100%}
.sidebar-meta{padding:18px 8px 0;border-top:1px solid var(--line);margin-top:16px}
.sidebar-meta p{margin:0;font-size:11px;line-height:1.8;color:var(--text-3);letter-spacing:.02em}

.main-area{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;position:relative}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}

/* ===== 顶部条 / 面包屑 ===== */
.page-strip{
  height:var(--strip-h);
  display:flex;align-items:center;
  position:sticky;top:0;z-index:1020;
  background:rgba(11,21,36,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.breadcrumb-list{display:flex;align-items:center;flex-wrap:wrap;gap:0;list-style:none;font-size:13px;color:var(--text-3);min-width:0}
.breadcrumb-list li{display:flex;align-items:center;min-width:0}
.breadcrumb-list li+li::before{content:"/";margin:0 9px;color:rgba(255,255,255,.22)}
.breadcrumb-list a{color:var(--text-3)}
.breadcrumb-list a:hover{color:var(--brand)}
.breadcrumb-list .current{color:var(--text-2);max-width:46vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 顶部移动栏 ===== */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
  align-items:center;gap:12px;
  padding:0 14px;
  background:rgba(8,17,31,.9);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  z-index:1050;
}
.menu-btn{
  width:40px;height:40px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;border:1px solid var(--line);
  background:var(--surface);color:var(--text-1);cursor:pointer;
}
.menu-btn:hover{border-color:rgba(25,227,176,.45);color:var(--brand)}
.topbar-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;min-width:0}
.topbar-brand span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .brand-mark{width:32px;height:32px;font-size:15px;border-radius:9px}
.topbar .btn{margin-left:auto;flex:0 0 auto}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(4,8,16,.7);
  z-index:1035;opacity:0;transition:opacity .24s ease;
}
body.drawer-open .drawer-mask{opacity:1}

/* ===== 文章头部 ===== */
.article-head{padding:44px 0 8px}
.article-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:13px;
}
.article-badge i{color:var(--brand);font-size:12px}
.article-title{
  font-size:clamp(24px,3.4vw,36px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
  margin:18px 0 16px;
  color:var(--text-1);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--text-3)}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row .meta-item+.meta-item::before{content:"·";margin:0 10px;color:rgba(255,255,255,.2)}
.meta-row .meta-item i{font-size:12px;color:var(--text-3)}
.glow-line{height:1px;margin-top:24px;background:linear-gradient(90deg,rgba(25,227,176,.55),rgba(255,255,255,.08) 42%,rgba(255,255,255,0));}

/* ===== 正文两栏 ===== */
.layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:32px;
  align-items:start;
  padding:30px 0 8px;
}
.article-body{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:34px 36px;
  color:var(--text-2);
  font-size:16.5px;
  line-height:1.9;
  box-shadow:var(--shadow-1);
  overflow-wrap:break-word;
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  padding-left:16px;
  margin:2em 0 .8em;
  font-size:24px;
  font-weight:700;
  line-height:1.45;
  color:var(--text-1);
  letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;
  width:4px;height:.95em;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
}
.article-body h3{margin:1.7em 0 .6em;font-size:19px;font-weight:600;color:var(--text-1)}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;color:var(--text-1)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.25em}
.article-body li{margin:.42em 0}
.article-body li::marker{color:var(--brand)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(25,227,176,.42)}
.article-body a:hover{border-bottom-color:var(--brand);box-shadow:0 1px 0 var(--brand)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body img{border-radius:14px;margin:1.5em auto;width:100%;background:var(--bg-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center;line-height:1.7}
.article-body blockquote{
  margin:1.6em 0;padding:20px 22px;
  background:var(--surface);
  border-left:3px solid var(--brand);
  border-radius:0 14px 14px 0;
  color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.article-body th{background:var(--bg-2);color:var(--text-1);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.08)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body tbody tr:hover td{background:rgba(255,255,255,.04)}
.article-body pre{
  margin:1.5em 0;padding:16px 18px;
  background:#08111F;
  border:1px solid var(--line);
  border-radius:10px;
  overflow-x:auto;
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:14px;line-height:1.7;
  color:#CDE7DE;
}
.article-body code{
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:.92em;
  padding:2px 6px;border-radius:6px;
  background:rgba(255,255,255,.07);
  color:var(--brand);
}
.article-body pre code{background:none;padding:0;color:inherit;font-size:inherit}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}

/* ===== 文章内配置区 ===== */
.article-foot{margin-top:28px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.tag:hover{color:var(--brand);border-color:rgba(25,227,176,.42);background:rgba(25,227,176,.08)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav a{
  display:block;padding:18px 20px;
  border-radius:var(--radius);
  background:var(--bg-1);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.post-nav a:hover{border-color:rgba(25,227,176,.38);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.post-nav .pn-label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);letter-spacing:.04em}
.post-nav .pn-label i{color:var(--brand)}
.post-nav .pn-title{margin-top:8px;font-size:15px;font-weight:600;color:var(--text-1);line-height:1.5}
.post-nav .pn-desc{margin-top:6px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ===== 侧栏 ===== */
.side-col{position:sticky;top:calc(var(--strip-h) + 24px);display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-1);
}
.side-card h3{
  margin:0 0 12px;font-size:16px;font-weight:700;color:var(--text-1);
  display:flex;align-items:center;gap:9px;
}
.side-card h3 i{color:var(--brand);font-size:14px}
.side-card .side-note{margin:0;font-size:13.5px;line-height:1.85;color:var(--text-2)}
.side-list{list-style:none}
.side-list li+li{border-top:1px solid var(--line)}
.side-list a{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 4px 12px 0;
  font-size:15px;color:var(--text-2);line-height:1.6;
}
.side-list a span.tox{display:flex;align-items:center;gap:10px;min-width:0}
.side-list a i.arrow{color:var(--text-3);font-size:12px;transition:color var(--ease),transform var(--ease)}
.side-list a:hover{color:var(--brand)}
.side-list a:hover i.arrow{color:var(--brand);transform:translateX(3px)}
.side-list .toc-index{
  font-family:"DIN Alternate",ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:12px;color:var(--text-3);
  min-width:22px;
}
.stat-strip{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.stat-cell{
  padding:14px;border-radius:12px;
  background:var(--bg-2);border:1px solid var(--line);
}
.stat-cell b{
  display:block;font-family:"DIN Alternate",ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:22px;color:var(--brand);line-height:1.2;
}
.stat-cell span{display:block;margin-top:4px;font-size:12px;color:var(--text-3)}

/* ===== 通用板块 ===== */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{margin:0;font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:-.01em;color:var(--text-1)}
.section-head p{margin:8px 0 0;font-size:14px;color:var(--text-2);max-width:640px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{font-size:12px;transition:transform var(--ease)}
.link-arrow:hover i{transform:translateX(3px)}

.card-article{
  display:flex;flex-direction:column;height:100%;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card-article:hover{transform:translateY(-3px);border-color:rgba(25,227,176,.35);box-shadow:var(--shadow-2)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card-article:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,0) 40%,rgba(6,11,20,.55))}
.card-inner{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge-soft{
  align-self:flex-start;
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--surface-2);border:1px solid var(--line);
  font-size:12px;color:var(--text-2);
}
.card-inner h3{
  margin:0;font-size:17px;font-weight:600;line-height:1.55;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-article:hover .card-inner h3{color:var(--brand)}
.card-inner p{
  margin:0;font-size:14px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.card-article:hover .card-foot{color:var(--brand)}
.card-foot i{font-size:12px;transition:transform var(--ease)}
.card-article:hover .card-foot i{transform:translateX(3px)}

/* ===== FAQ ===== */
.faq-acc .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:16px;font-weight:600;
  padding:18px 22px;
  box-shadow:none;
  line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){background:rgba(25,227,176,.07);color:var(--brand)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none}
.faq-acc .accordion-button::after{
  width:auto;height:auto;
  display:flex;align-items:center;justify-content:center;
  background-image:none;
  content:"+";
  font-size:22px;line-height:1;
  color:var(--text-3);
  transition:transform .2s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(90deg);color:var(--brand)}
.faq-acc .accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ===== CTA ===== */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:30px 32px;
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(25,227,176,.12),rgba(255,255,255,.04) 55%,rgba(255,194,75,.10));
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-1);
}
.cta-bar h2{margin:0 0 8px;font-size:clamp(19px,2.4vw,24px);font-weight:700;letter-spacing:-.01em;color:var(--text-1)}
.cta-bar p{margin:0;font-size:14px;color:var(--text-2);max-width:620px;line-height:1.8}

/* ===== 按钮与工具 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 26px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;
  transition:transform var(--ease),filter var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04140F;
  box-shadow:0 0 0 1px rgba(25,227,176,.35),0 10px 30px var(--brand-glow);
}
.btn-primary:hover,.btn-primary:focus-visible{color:#04140F;filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  color:#241703;
  box-shadow:0 0 0 1px rgba(255,194,75,.35),0 10px 30px rgba(255,194,75,.22);
}
.btn-gold:hover,.btn-gold:focus-visible{color:#241703;filter:brightness(1.06);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover,.btn-ghost:focus-visible{background:rgba(255,255,255,.08);border-color:rgba(25,227,176,.42);color:var(--text-1)}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

/* ===== 空态 ===== */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:56px 24px;text-align:center;
}
.empty-state i{font-size:44px;color:var(--text-3);line-height:1}
.empty-state p{margin:0;font-size:15px;color:var(--text-2)}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:auto;
  padding:56px 0 0;
  background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(6,11,20,.6));
  border-top:1px solid var(--line);
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.foot-brand strong{font-size:16px;font-weight:700;letter-spacing:-.01em}
.foot-desc{margin:0;font-size:13.5px;line-height:1.9;color:var(--text-2);max-width:340px}
.foot-col h4{margin:0 0 16px;font-size:14px;font-weight:600;color:var(--text-1);letter-spacing:.02em}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.foot-col ul a{font-size:13.5px;color:var(--text-2);display:inline-block}
.foot-col ul a:hover{color:var(--brand);transform:translateX(2px)}
.foot-col p{margin:0 0 8px;font-size:13.5px;line-height:1.85;color:var(--text-2)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 26px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}

/* ===== 响应式：中屏图标栏 ===== */
@media (max-width:1199.98px) and (min-width:992px){
  .sidebar{width:var(--rail-w);padding:18px 10px;align-items:center}
  .sidebar-brand{padding:4px 0 16px;justify-content:center;width:100%}
  .sidebar-brand-text{display:none}
  .side-nav{width:100%;align-items:center}
  .nav-item{width:48px;justify-content:center;padding:0}
  .nav-label{display:none}
  .sidebar-cta{align-items:center;width:100%}
  .sidebar-cta .btn{width:48px;height:44px;padding:0}
  .sidebar-cta .btn .btn-text{display:none}
  .sidebar-meta{display:none}
  .main-area{margin-left:var(--rail-w)}
  .nav-item:hover::after{
    content:attr(data-label);
    position:absolute;left:58px;top:50%;transform:translateY(-50%);
    padding:6px 12px;border-radius:9px;
    background:#0E1B2B;border:1px solid var(--line);
    color:var(--text-1);font-size:13px;white-space:nowrap;
    box-shadow:var(--shadow-2);z-index:20;
  }
  .layout{grid-template-columns:1fr}
  .side-col{position:static}
}

/* ===== 响应式：移动端 ===== */
@media (max-width:991.98px){
  .topbar{display:flex}
  .drawer-mask{display:block}
  .sidebar{
    width:284px;
    padding:20px 16px 18px;
    transform:translateX(-102%);
    transition:transform .26s cubic-bezier(.4,0,.2,1);
    box-shadow:0 0 60px rgba(0,0,0,.6);
  }
  body.drawer-open .sidebar{transform:translateX(0)}
  .main-area{margin-left:0;padding-top:var(--topbar-h)}
  .page-strip{top:var(--topbar-h)}
  .layout{grid-template-columns:1fr;gap:28px}
  .side-col{position:static}
  .article-head{padding:32px 0 6px}
  .article-body{padding:26px 22px;font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .section{padding:52px 0}
  .cta-bar{flex-direction:column;align-items:stretch;gap:20px;padding:26px 22px;text-align:left}
  .cta-bar .btn{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .post-nav{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .container-wide{padding:0 16px}
  .article-title{font-size:clamp(23px,6.4vw,28px)}
  .article-body{padding:22px 18px}
  .section{padding:44px 0}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn{width:100%;padding:12px 20px}
  .topbar .btn{width:auto}
  .stat-strip{grid-template-columns:1fr 1fr}
  .breadcrumb-list .current{max-width:40vw}
}

/* roulang page: category1 */
:root{
  --bg-0:#060B14;
  --bg-1:#0B1524;
  --bg-2:#0E1B2B;
  --surface:rgba(255,255,255,.05);
  --surface-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --brand:#19E3B0;
  --brand-deep:#0B8F76;
  --brand-glow:rgba(25,227,176,.28);
  --gold:#FFC24B;
  --gold-deep:#E39A16;
  --live:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A7B6CC;
  --text-3:#6C7F99;
  --r-card:16px;
  --r-kv:24px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-1:0 8px 24px rgba(3,8,18,.45);
  --shadow-2:0 14px 36px rgba(3,8,18,.6);
  --sidebar-w:260px;
  --sidebar-w-md:72px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate",Barlow,ui-monospace,monospace;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 84% -6%, rgba(25,227,176,.10), transparent 62%),
    radial-gradient(720px 480px at 6% 10%, rgba(255,194,75,.05), transparent 66%),
    linear-gradient(rgba(255,255,255,.020) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.020) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);}
a:hover{color:#6DF3D1;}
h1,h2,h3,h4{letter-spacing:-.01em;font-weight:700;color:var(--text-1);}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(25,227,176,.28);color:#04140F;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#04140F;padding:10px 18px;border-radius:0 0 12px 0;z-index:2000;}
.skip-link:focus{left:0;color:#04140F;}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}

/* ============ App Shell ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;
  width:var(--sidebar-w);
  display:flex;flex-direction:column;
  padding:22px 18px 18px;
  background:rgba(6,11,20,.88);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-right:1px solid var(--line);
  z-index:1040;
  transition:width .2s var(--ease),padding .2s var(--ease);
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;padding:4px 6px 18px;border-bottom:1px solid var(--line);margin-bottom:16px;}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;
  display:grid;place-items:center;
  font-size:18px;font-weight:700;color:#04140F;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 0 1px rgba(25,227,176,.35),0 8px 22px var(--brand-glow);
}
.brand-text strong{display:block;font-size:16px;line-height:1.3;color:var(--text-1);}
.brand-sub{display:block;font-family:var(--font-num);font-style:normal;font-size:10px;letter-spacing:.18em;color:var(--text-3);margin-top:2px;}
.side-nav{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:48px;padding:0 14px;border-radius:16px;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:background-color .16s var(--ease),color .16s var(--ease);
}
.nav-item i{width:18px;font-size:16px;text-align:center;color:inherit;}
.nav-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--brand);opacity:0;transition:opacity .16s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text-1);}
.nav-item:hover::before{opacity:.55;}
.nav-item.active{background:rgba(25,227,176,.12);color:var(--text-1);}
.nav-item.active::before{opacity:1;}
.side-cta{display:flex;flex-direction:column;gap:10px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.side-foot{margin-top:16px;font-size:12px;line-height:1.7;color:var(--text-3);}
.side-foot p{margin:0;}

.main-area{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:12px 26px;
  font-family:var(--font-cn);font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:all .18s var(--ease);
}
.btn-brand{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04140F;box-shadow:0 0 0 1px rgba(25,227,176,.35),0 10px 30px var(--brand-glow);}
.btn-brand:hover{color:#04140F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(25,227,176,.45),0 14px 34px var(--brand-glow);}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#22160A;box-shadow:0 0 0 1px rgba(255,194,75,.35),0 10px 28px rgba(255,194,75,.22);}
.btn-gold:hover{color:#22160A;filter:brightness(1.06);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(25,227,176,.40);color:var(--text-1);}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:11px;}
.btn-xs{padding:8px 14px;font-size:13px;border-radius:10px;}
.btn:active{transform:translateY(1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow i{transition:transform .16s var(--ease);}
.link-arrow:hover i{transform:translateX(2px);}

/* ============ 面包屑 ============ */
.crumb-bar{height:44px;display:flex;align-items:center;background:rgba(255,255,255,.04);border-bottom:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none;font-size:13px;color:var(--text-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--text-3);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--text-3);}

/* ============ Banner ============ */
.page-banner{
  position:relative;overflow:hidden;
  min-height:250px;display:flex;align-items:flex-end;
  padding:46px 0 34px;
  background-image:linear-gradient(180deg,rgba(6,11,20,.52),rgba(6,11,20,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 88% 6%, rgba(25,227,176,.30), transparent 68%);
}
.banner-inner{position:relative;z-index:1;max-width:860px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  font-size:12px;letter-spacing:.04em;color:var(--text-2);
}
.badge-pill i{color:var(--brand);}
.page-banner h1{font-size:clamp(28px,4.4vw,46px);line-height:1.18;margin:16px 0 12px;}
.banner-lead{margin:0;max-width:660px;font-size:16px;color:var(--text-2);}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-head{max-width:760px;margin-bottom:34px;}
.eyebrow{
  display:inline-block;margin-bottom:12px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.2em;
  color:var(--brand);text-transform:uppercase;
}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.28;margin:0 0 12px;}
.section-head p{margin:0;color:var(--text-2);font-size:15px;}
.divider-soft{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 导读 ============ */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start;}
.lead-copy p{color:var(--text-2);font-size:16px;}
.lead-copy h2{font-size:clamp(22px,3vw,30px);margin:0 0 16px;}
.glass-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.intro-card h3{font-size:18px;margin:0 0 16px;}
.intro-card .card-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.intro-card .card-head i{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:rgba(25,227,176,.14);color:var(--brand);font-size:15px;}
.intro-card .card-head strong{font-size:17px;}
.mini-list li{position:relative;padding-left:24px;font-size:14.5px;color:var(--text-2);line-height:1.9;}
.mini-list li+li{margin-top:8px;}
.mini-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:4px;font-size:11px;color:var(--brand);
}

/* ============ 图文交替 ============ */
.zigzag-list{display:grid;gap:38px;}
.zigzag{
  display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center;
  padding-top:38px;border-top:1px solid var(--line);
}
.zigzag:first-child{padding-top:0;border-top:0;}
.zigzag.rev{grid-template-columns:7fr 5fr;}
.zigzag.rev .zig-media{order:2;}
.zig-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--bg-1);}
.zig-media img{width:100%;aspect-ratio:5 / 7;object-fit:cover;}
.zig-num{font-family:var(--font-num);font-size:13px;letter-spacing:.2em;color:var(--brand);}
.zig-body h3{font-size:22px;line-height:1.4;margin:10px 0 14px;}
.zig-body p{margin:0 0 14px;color:var(--text-2);font-size:15.5px;}
.zig-points li{position:relative;padding-left:20px;font-size:14px;color:var(--text-3);line-height:1.9;}
.zig-points li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:1px;background:var(--brand);}

/* ============ 要点清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.check-item{
  display:flex;gap:14px;padding:20px;border-radius:14px;
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.check-item:hover{border-color:rgba(25,227,176,.32);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.check-item i{color:var(--brand);font-size:15px;margin-top:5px;}
.check-item h4{font-size:16px;margin:0 0 6px;}
.check-item p{margin:0;font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ 服务条 ============ */
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.strip-card{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:20px;transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.strip-card:hover{border-color:rgba(25,227,176,.30);transform:translateY(-2px);}
.strip-card i{font-size:20px;color:var(--brand);}
.strip-card h4{font-size:15px;margin:14px 0 8px;}
.strip-card p{margin:0;font-size:13px;color:var(--text-3);line-height:1.75;}

/* ============ FAQ ============ */
.faq-acc .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.faq-acc .accordion-item:last-child{margin-bottom:0;}
.faq-acc .accordion-button{
  background:transparent;color:var(--text-1);
  font-family:var(--font-cn);font-size:16px;font-weight:600;
  padding:18px 20px;min-height:56px;box-shadow:none;border:0;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:rgba(25,227,176,.06);}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(25,227,176,.18);border-radius:14px;}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;font-size:22px;font-weight:400;line-height:1;
  width:auto;height:auto;margin-left:auto;color:var(--brand);
  transform:none;transition:transform .2s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(90deg);}
.faq-acc .accordion-body{padding:4px 20px 22px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:30px 34px;border-radius:20px;
  background:linear-gradient(120deg,rgba(25,227,176,.13),rgba(255,255,255,.04) 62%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);margin:0 0 10px;}
.cta-band p{margin:0;font-size:15px;color:var(--text-2);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{margin-top:88px;border-top:1px solid var(--line);background:var(--bg-1);padding-top:56px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.foot-brand .brand-mark{width:36px;height:36px;border-radius:10px;font-size:16px;}
.foot-brand strong{font-size:16px;}
.foot-desc{font-size:14px;color:var(--text-2);margin:0;}
.foot-col h4{font-size:15px;margin:0 0 16px;}
.foot-col li{margin-bottom:10px;}
.foot-col a{display:inline-block;font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--brand);transform:translateX(2px);}
.foot-col p{font-size:14px;color:var(--text-2);margin:0 0 8px;}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:40px;padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ============ 移动顶栏与抽屉 ============ */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:1050;
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  background:rgba(6,11,20,.92);border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.topbar-brand{display:flex;align-items:center;gap:10px;color:var(--text-1);}
.topbar-brand .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px;}
.topbar-brand strong{font-size:15px;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--line);color:var(--text-1);font-size:16px;
}
.icon-btn:hover{background:var(--surface-2);color:var(--text-1);}
.drawer{
  --bs-offcanvas-width:290px;
  background:var(--bg-1);color:var(--text-1);border-right:1px solid var(--line);
}
.drawer .offcanvas-header{padding:18px;border-bottom:1px solid var(--line);gap:12px;}
.drawer .offcanvas-header strong{font-size:16px;}
.drawer .offcanvas-body{padding:18px;display:flex;flex-direction:column;}
.drawer-nav{gap:6px;}
.drawer .side-cta{margin-top:24px;}
.close-x{
  margin-left:auto;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text-2);display:grid;place-items:center;font-size:15px;
}
.close-x:hover{background:var(--surface-2);color:var(--text-1);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .sidebar{width:var(--sidebar-w-md);padding:18px 10px;}
  .main-area{margin-left:var(--sidebar-w-md);}
  .brand{justify-content:center;padding:4px 0 16px;}
  .brand-text,.side-foot,.side-cta .btn span{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .side-cta .btn{width:44px;height:44px;padding:0;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .main-area{margin-left:0;padding-top:56px;}
  .section{padding:56px 0;}
  .intro-grid{grid-template-columns:1fr;gap:24px;}
  .zigzag,.zigzag.rev{grid-template-columns:1fr;gap:22px;padding-top:30px;}
  .zigzag.rev .zig-media{order:0;}
  .zig-media img{aspect-ratio:16 / 9;}
  .check-grid{grid-template-columns:1fr;}
  .strip-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:stretch;padding:24px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .site-footer{margin-top:56px;}
  .page-banner{min-height:210px;padding:34px 0 28px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;background-image:radial-gradient(600px 420px at 82% -4%, rgba(25,227,176,.09), transparent 62%);}
  .container-wide{padding:0 16px;}
  .section{padding:48px 0;}
  .strip-grid,.foot-grid{grid-template-columns:1fr;}
  .page-banner h1{font-size:26px;}
  .zig-body h3{font-size:19px;}
  .cta-band h2{font-size:20px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060B14;
  --bg-1:#0B1524;
  --bg-2:#0E1B2B;
  --surface:rgba(255,255,255,.05);
  --surface-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --brand:#19E3B0;
  --brand-deep:#0B8F76;
  --brand-glow:rgba(25,227,176,.28);
  --gold:#FFC24B;
  --gold-deep:#E39A16;
  --live:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A7B6CC;
  --text-3:#6C7F99;
  --radius-card:16px;
  --radius-hero:24px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-card:0 8px 24px rgba(3,8,18,.45);
  --shadow-hover:0 14px 36px rgba(3,8,18,.6);
  --sidebar-w:260px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease,opacity .16s ease;}
a:hover{color:var(--brand);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--text-1);font-weight:700;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(25,227,176,.3);color:#fff;}

.container-wide{
  max-width:1280px;
  margin:0 auto;
  padding:0 20px;
  width:100%;
}

/* ============ 顶栏（移动端） ============ */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  z-index:1040;
  align-items:center;
  gap:12px;
  padding:0 14px;
  background:rgba(6,11,20,.92);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.topbar .brand-mini{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--text-1);
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04140F;font-weight:700;font-size:15px;
  box-shadow:0 0 0 1px rgba(25,227,176,.35),0 6px 18px var(--brand-glow);
  flex:0 0 auto;
}
.topbar .hamburger{
  width:40px;height:40px;border-radius:11px;
  border:1px solid var(--line);background:var(--surface);
  color:var(--text-1);display:inline-flex;align-items:center;justify-content:center;
}
.topbar .top-login{
  margin-left:auto;
  padding:8px 16px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  color:#1A1204;font-size:13px;font-weight:600;
}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  z-index:1035;
  display:flex;flex-direction:column;
  gap:22px;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,#08111F 0%,#060B14 100%);
  border-right:1px solid var(--line);
}
.side-brand{display:flex;flex-direction:column;gap:6px;padding:0 8px;}
.side-brand .brand-row{display:flex;align-items:center;gap:10px;}
.side-brand .brand-name{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:-.01em;}
.side-brand .brand-sub{
  font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--text-3);
  padding-left:40px;
}
.side-nav{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:48px;padding:0 14px;
  border-radius:16px;
  color:var(--text-2);
  font-size:15px;
  transition:background .16s ease,color .16s ease;
}
.nav-item i{width:18px;font-size:15px;text-align:center;flex:0 0 auto;}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--brand);
  transition:height .16s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text-1);}
.nav-item:hover::before{height:20px;}
.nav-item.active{
  background:rgba(25,227,176,.12);
  color:var(--text-1);
}
.nav-item.active::before{height:24px;}
.side-cta{
  margin-top:auto;
  display:flex;flex-direction:column;gap:10px;
  padding:16px;
  border-radius:16px;
  background:var(--surface);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
}
.side-cta h4{font-size:14px;font-weight:600;color:var(--text-1);}
.side-cta p{font-size:12px;line-height:1.7;color:var(--text-3);margin:0;}
.side-foot{font-size:11px;line-height:1.9;color:var(--text-3);padding:0 8px;}

/* ============ 按钮 ============ */
.btn-brand,.btn-gold,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  padding:12px 26px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease,filter .16s ease;
  white-space:nowrap;
}
.btn-brand{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04140F;
  box-shadow:0 0 0 1px rgba(25,227,176,.35),0 10px 30px var(--brand-glow);
}
.btn-brand:hover{filter:brightness(1.08);transform:translateY(-1px);color:#04140F;}
.btn-brand:active{transform:translateY(1px);}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  color:#1A1204;
  box-shadow:0 0 0 1px rgba(255,194,75,.35),0 10px 30px rgba(227,154,22,.25);
}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-1px);color:#1A1204;}
.btn-gold:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(25,227,176,.4);color:var(--text-1);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:11px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;
}
.link-arrow i{transition:transform .16s ease;}
.link-arrow:hover i{transform:translateX(2px);}

/* ============ 布局主区 ============ */
.page-shell{
  padding-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;flex-direction:column;
}
main{flex:1 1 auto;}

/* ============ 分类 banner ============ */
.page-banner{
  position:relative;
  min-height:248px;
  display:flex;align-items:flex-end;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.62) 0%,rgba(6,11,20,.9) 62%,var(--bg-0) 100%);
}
.page-banner::after{
  content:"";position:absolute;top:-60px;right:-40px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(25,227,176,.3) 0%,rgba(25,227,176,0) 68%);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding:56px 0 30px;width:100%;}
.banner-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 14px;border-radius:999px;
  background:rgba(25,227,176,.12);
  border:1px solid rgba(25,227,176,.3);
  color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.04em;
  margin-bottom:14px;
}
.banner-inner h1{
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.15;
  font-weight:700;
  max-width:880px;
}
.banner-inner .banner-sub{
  margin-top:12px;max-width:720px;
  font-size:15px;line-height:1.8;color:var(--text-2);
}
.breadcrumb-bar{
  background:rgba(255,255,255,.03);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.breadcrumb-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  min-height:44px;font-size:13px;color:var(--text-3);
}
.breadcrumb-list a{color:var(--text-2);}
.breadcrumb-list a:hover{color:var(--brand);}
.breadcrumb-list .sep{color:var(--text-3);opacity:.7;}
.breadcrumb-list .current{color:var(--text-3);}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.16em;color:var(--brand);
  margin-bottom:12px;font-weight:600;
}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.28;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15px;}
.divider-line{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 介绍段 ============ */
.intro-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.intro-copy p{color:var(--text-2);font-size:15.5px;}
.intro-copy p:last-child{margin-bottom:0;}
.intro-points{display:flex;flex-direction:column;gap:12px;margin-top:26px;}
.intro-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);
}
.intro-points li i{color:var(--brand);margin-top:6px;font-size:13px;}
.intro-media{
  position:relative;border-radius:var(--radius-hero);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--bg-1);
}
.intro-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.intro-media .media-note{
  position:absolute;left:16px;bottom:16px;right:16px;
  padding:12px 16px;border-radius:14px;
  background:rgba(6,11,20,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  font-size:13px;color:var(--text-2);line-height:1.6;
}

/* ============ 对比面板 ============ */
.compare-wrap{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-1);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th,.compare-table td{
  padding:18px 22px;
  text-align:left;
  font-size:14.5px;
  vertical-align:top;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.compare-table thead th{
  font-size:15px;font-weight:600;color:var(--text-1);
  background:rgba(255,255,255,.03);
  border-top:3px solid var(--brand);
  white-space:nowrap;
}
.compare-table thead th:first-child{border-top-color:var(--line);color:var(--text-3);}
.compare-table tbody th{
  font-weight:600;color:var(--text-1);width:22%;
  background:rgba(255,255,255,.02);
}
.compare-table tbody td{color:var(--text-2);}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover td,
.compare-table tbody tr:hover th{background:rgba(255,255,255,.04);}
.compare-table td .cell-strong{color:var(--text-1);font-weight:600;}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:40px;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(25,227,176,.18) 100%);
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-40px;top:22px;
  width:14px;height:14px;border-radius:50%;
  background:var(--bg-0);
  border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(25,227,176,.10);
}
.tl-item.is-gold::before{border-color:var(--gold);box-shadow:0 0 0 4px rgba(255,194,75,.10);}
.tl-card{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(16px) saturate(140%);
  padding:22px 24px;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(25,227,176,.3);}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px;}
.tl-time{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--brand);
  padding:3px 10px;border-radius:999px;
  background:rgba(25,227,176,.1);
  border:1px solid rgba(25,227,176,.24);
}
.tl-item.is-gold .tl-time{color:var(--gold);background:rgba(255,194,75,.1);border-color:rgba(255,194,75,.24);}
.tl-head h3{font-size:17px;font-weight:600;}
.tl-card p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ============ 数据/能力条带 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.stat-card{
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(16px) saturate(140%);
  padding:20px 18px;
  transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.stat-card:hover{transform:translateY(-2px);border-color:rgba(25,227,176,.3);box-shadow:var(--shadow-hover);}
.stat-card i{font-size:17px;color:var(--brand);}
.stat-card .stat-label{
  margin-top:12px;font-size:12px;letter-spacing:.1em;color:var(--text-3);
}
.stat-card .stat-value{
  margin-top:4px;
  font-size:19px;font-weight:600;color:var(--text-1);
  font-variant-numeric:tabular-nums;
}
.stat-card .stat-desc{margin-top:6px;font-size:13px;color:var(--text-2);line-height:1.7;}

/* ============ 图片卡片行 ============ */
.card-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.info-card{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--bg-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(25,227,176,.3);}
.info-card .card-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.info-card .card-media img{width:100%;height:100%;object-fit:cover;}
.info-card .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-card h3{font-size:17px;font-weight:600;line-height:1.5;}
.info-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0;}
.info-card .card-foot{margin-top:auto;padding-top:6px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.accordion-item{
  border:1px solid var(--line)!important;
  border-radius:var(--radius-card)!important;
  background:var(--surface)!important;
  backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
}
.accordion-button{
  background:transparent!important;
  color:var(--text-1)!important;
  font-size:16px;font-weight:600;
  min-height:60px;
  padding:16px 22px;
  box-shadow:none!important;
  display:flex;align-items:center;gap:14px;
}
.accordion-button::after{
  display:none;
}
.accordion-button .faq-icon{
  margin-left:auto;
  width:26px;height:26px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--brand);
  font-size:12px;
  transition:transform .2s ease,background .2s ease;
}
.accordion-button:not(.collapsed){color:var(--brand)!important;}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(90deg);background:rgba(25,227,176,.12);}
.accordion-button:focus{outline:2px solid var(--brand);outline-offset:-2px;}
.accordion-body{
  padding:4px 22px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}

/* ============ 底部 CTA ============ */
.cta-bar{
  border-radius:var(--radius-hero);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(25,227,176,.10) 0%,rgba(255,255,255,.04) 55%,rgba(255,194,75,.08) 100%);
  backdrop-filter:blur(16px) saturate(140%);
  padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);line-height:1.3;}
.cta-bar p{margin:8px 0 0;font-size:14.5px;color:var(--text-2);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  background:#04080F;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand strong{font-size:16px;color:var(--text-1);}
.foot-desc{font-size:13.5px;color:var(--text-3);line-height:1.9;margin:0;max-width:330px;}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col li a{font-size:13.5px;color:var(--text-2);display:inline-block;transition:transform .16s ease,color .16s ease;}
.foot-col li a:hover{color:var(--brand);transform:translateX(2px);}
.foot-col p{font-size:13.5px;color:var(--text-2);margin:0 0 10px;}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-3);
}

/* ============ 抽屉 ============ */
.offcanvas.drawer{
  background:var(--bg-1);
  color:var(--text-1);
  border-right:1px solid var(--line);
  width:290px;
}
.drawer .drawer-head{display:flex;align-items:center;gap:10px;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer .drawer-body{padding:16px;}
.drawer .nav-item{height:48px;}
.offcanvas-backdrop.show{opacity:.7;background:#04080F;}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .intro-grid{gap:36px;}
}
@media (max-width:1199.98px){
  .sidebar{width:72px;padding:20px 10px;align-items:center;}
  .side-brand .brand-row{gap:0;}
  .side-brand .brand-name,.side-brand .brand-sub{display:none;}
  .side-nav{width:100%;align-items:center;}
  .nav-item{justify-content:center;padding:0;width:48px;}
  .nav-item .nav-label{display:none;}
  .side-cta,.side-foot{display:none;}
  .page-shell{padding-left:72px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .card-row{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .topbar{display:flex;}
  .page-shell{padding-left:0;padding-top:56px;}
  .section{padding:56px 0;}
  .section.tight{padding:44px 0;}
  .banner-inner{padding:36px 0 24px;}
  .page-banner{min-height:210px;}
  .compare-table th,.compare-table td{padding:14px 16px;font-size:13.5px;}
  .compare-table tbody th{width:30%;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px 24px;}
  .cta-actions{width:100%;}
}
@media (max-width:767.98px){
  .card-row{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:14px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding-top:48px;}
  .compare-wrap{overflow-x:auto;}
  .compare-table{min-width:560px;}
  .timeline{padding-left:32px;}
  .tl-item::before{left:-32px;}
  .timeline::before{left:9px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .container-wide{padding:0 16px;}
  .section{padding:48px 0;}
  .banner-inner h1{font-size:26px;}
  .btn-brand,.btn-gold,.btn-ghost{width:100%;}
  .cta-actions{flex-direction:column;}
  .tl-card{padding:18px;}
  .stat-card{padding:16px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060B14;
  --bg-1:#0B1524;
  --bg-2:#0E1B2B;
  --surface:rgba(255,255,255,.05);
  --surface-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --brand:#19E3B0;
  --brand-deep:#0B8F76;
  --brand-glow:rgba(25,227,176,.28);
  --gold:#FFC24B;
  --gold-deep:#E39A16;
  --live:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A7B6CC;
  --text-3:#6C7F99;
  --r-card:16px;
  --r-kv:24px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-1:0 8px 24px rgba(3,8,18,.45);
  --shadow-2:0 14px 36px rgba(3,8,18,.6);
  --sidebar-w:260px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate",Barlow,ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .16s ease}
a:hover{color:#5CF0CB}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text-1)}
h1{font-size:clamp(28px,4.4vw,52px);line-height:1.15}
h2{font-size:clamp(22px,3vw,34px);line-height:1.25}
h3{font-size:20px;font-weight:600;line-height:1.45}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num,.tabular{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== App Shell ===== */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  display:flex;flex-direction:column;gap:22px;
  padding:22px 16px;
  background:linear-gradient(180deg,#08111F 0%,#060B14 100%);
  border-right:1px solid var(--line);
  z-index:1040;
}
.brand-block{display:flex;align-items:center;gap:12px;padding:6px 8px 0}
.brand-mark{
  flex:0 0 42px;width:42px;height:42px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04140F;font-weight:700;font-size:20px;
  box-shadow:0 0 0 1px rgba(25,227,176,.35),0 10px 26px var(--brand-glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text-1);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.28em;color:var(--text-3);text-transform:uppercase}

.side-nav{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:48px;padding:0 14px;border-radius:16px;
  color:var(--text-2);font-size:15px;
  transition:background-color .16s ease,color .16s ease;
}
.nav-item i{width:18px;text-align:center;font-size:16px}
.nav-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:transparent;transition:background-color .16s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text-1)}
.nav-item:hover::before{background:var(--brand)}
.nav-item.active{background:rgba(25,227,176,.12);color:var(--text-1)}
.nav-item.active::before{background:var(--brand)}
.nav-item.active i{color:var(--brand)}

.side-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}
.sidebar-foot{border-top:1px solid var(--line);padding-top:14px;font-size:12px;color:var(--text-3);line-height:1.7}
.sidebar-foot span{display:block}

.app-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}

.topbar{display:none}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav .nav-item{height:48px}

/* ===== Buttons ===== */
.btn-brand,.btn-gold,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  padding:13px 26px;border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,border-color .16s ease,filter .16s ease;
}
.btn-brand{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04140F}
.btn-brand:hover{color:#04140F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(25,227,176,.35),0 10px 30px var(--brand-glow)}
.btn-brand:active{transform:translateY(0)}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#241703}
.btn-gold:hover{color:#241703;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,194,75,.4),0 12px 32px rgba(255,194,75,.26)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(25,227,176,.4);color:var(--text-1)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600}
.link-arrow i{transition:transform .16s ease}
.link-arrow:hover i{transform:translateX(2px)}

/* ===== Page title bar ===== */
.page-titlebar{
  min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:8px 20px;
  background:rgba(255,255,255,.04);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .current{color:var(--text-3)}

/* ===== Banner ===== */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-banner__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.page-banner__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.74) 0%,rgba(6,11,20,.92) 70%,rgba(6,11,20,.98) 100%);
}
.page-banner__glow{
  position:absolute;top:-120px;right:-80px;width:520px;height:420px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(25,227,176,.30),transparent 72%);
}
.page-banner__inner{position:relative;padding:64px 0 56px;min-height:238px;display:flex;flex-direction:column;justify-content:flex-end;gap:16px}
.page-banner h1{max-width:820px}
.page-banner .banner-sub{max-width:720px;color:var(--text-2);font-size:16px;margin:0}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px}

/* ===== Badges ===== */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  color:var(--text-2);font-size:13px;line-height:1.2;
}
.badge-pill i{font-size:12px;color:var(--brand)}
.badge-gold{background:rgba(255,194,75,.12);border-color:rgba(255,194,75,.4);color:var(--gold)}
.badge-gold i{color:var(--gold)}
.badge-live{background:rgba(255,90,95,.12);border-color:rgba(255,90,95,.4);color:var(--live)}
.badge-live i{color:var(--live)}

/* ===== Sections ===== */
.section{padding:88px 0}
.section--tight{padding-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.section-head p{margin:10px 0 0;color:var(--text-2);max-width:680px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--brand);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}

.lead-text{max-width:900px;color:var(--text-2);font-size:16.5px}
.figure-wide{margin-top:32px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);position:relative;aspect-ratio:21/9;background:var(--bg-1)}
.figure-wide img{width:100%;height:100%;object-fit:cover}
.figure-wide figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,rgba(6,11,20,0),rgba(6,11,20,.88));
}

/* ===== Split layout ===== */
.split-grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:32px;align-items:start}
.listing{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1)}
.listing-row{
  display:flex;align-items:flex-start;gap:18px;padding:20px 22px;
  border-bottom:1px solid var(--line);
  transition:background-color .16s ease;
}
.listing-row:last-child{border-bottom:none}
.listing-row:hover{background:rgba(255,255,255,.04)}
.listing-row .idx{
  flex:0 0 32px;width:32px;height:32px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(25,227,176,.10);color:var(--brand);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:14px;font-weight:600;
}
.listing-row .body{flex:1 1 auto;min-width:0}
.listing-row h3{font-size:16.5px;font-weight:600;margin-bottom:4px}
.listing-row p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75}
.listing-row .go{flex:0 0 auto;color:var(--text-3);font-size:14px;padding-top:6px;transition:color .16s ease,transform .16s ease}
.listing-row:hover .go{color:var(--brand);transform:translateX(2px)}

.sticky-card{
  position:sticky;top:24px;
  background:var(--surface);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.sticky-card__img{aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
.sticky-card__img img{width:100%;height:100%;object-fit:cover}
.sticky-card__body{padding:22px}
.sticky-card__body h3{font-size:19px;margin-bottom:10px}
.sticky-card__body p{font-size:14.5px;color:var(--text-2);margin-bottom:18px}
.chip-group{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.mini-list{margin:0 0 22px;display:flex;flex-direction:column;gap:10px}
.mini-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.mini-list li i{color:var(--brand);font-size:13px;padding-top:5px}
.sticky-actions{display:flex;flex-direction:column;gap:10px}

/* ===== Stat strip ===== */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat-cell{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:20px 18px;box-shadow:var(--shadow-1);
  transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.stat-cell:hover{transform:translateY(-2px);border-color:rgba(25,227,176,.35);box-shadow:var(--shadow-2)}
.stat-cell i{font-size:18px;color:var(--brand)}
.stat-cell .k{display:block;margin:12px 0 6px;font-size:15px;font-weight:600;color:var(--text-1)}
.stat-cell .v{margin:0;font-size:13.5px;color:var(--text-2);line-height:1.75}

/* ===== Steps ===== */
.step-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px dashed rgba(255,255,255,.16);padding-top:32px}
.step{position:relative;padding-right:26px}
.step+.step{padding-left:26px}
.step+.step::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line)}
.step .step-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1.2px var(--brand);letter-spacing:.02em;
}
.step h3{font-size:17px;margin:14px 0 8px}
.step p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75}

/* ===== Checklist ===== */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px}
.check-grid li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.8}
.check-grid li i{color:var(--brand);font-size:14px;padding-top:6px}

/* ===== FAQ ===== */
.faq-wrap{max-width:960px}
.accordion-item{
  background:var(--surface);backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text-1);
  font-size:16px;font-weight:600;line-height:1.6;
  padding:18px 22px;min-height:56px;
  box-shadow:none;border-radius:14px!important;
}
.accordion-button:not(.collapsed){background:rgba(25,227,176,.08);color:var(--brand)}
.accordion-button:focus{box-shadow:none;border-color:transparent;z-index:2}
.accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;font-size:14px;color:var(--brand);
  transform:none;transition:transform .2s ease;margin-left:16px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(90deg)}
.accordion-body{padding:4px 22px 20px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ===== CTA ===== */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(25,227,176,.10),rgba(255,255,255,.04) 60%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 32px;box-shadow:var(--shadow-1);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.cta-bar p{margin:0;color:var(--text-2);font-size:14.5px;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{margin-top:auto;background:#050A12;border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.foot-brand .brand-mark{flex:0 0 36px;width:36px;height:36px;font-size:17px;border-radius:12px}
.foot-brand strong{font-size:16px}
.foot-desc{font-size:14px;color:var(--text-2);margin:0;max-width:340px}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text-1)}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{color:var(--text-2);font-size:14px;transition:color .16s ease,transform .16s ease;display:inline-block}
.foot-col a:hover{color:var(--brand);transform:translateX(-2px)}
.foot-col p{font-size:13.5px;color:var(--text-2);margin:0 0 8px}
.foot-bottom{
  border-top:1px solid var(--line);padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ===== Offcanvas (mobile drawer) ===== */
.offcanvas.drawer{background:#08111F;color:var(--text-1);width:288px;border-right:1px solid var(--line)}
.offcanvas.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.offcanvas.drawer .offcanvas-body{padding:18px}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.8);opacity:.7}
.drawer .btn-close:hover{opacity:1}
.drawer-foot{border-top:1px solid var(--line);margin-top:18px;padding-top:16px;font-size:12px;color:var(--text-3)}

/* ===== Responsive ===== */
@media (min-width:1200px){
  .container-wide{padding:0 32px}
}
@media (max-width:1199.98px) and (min-width:992px){
  :root{--sidebar-w:72px}
  .app-sidebar{padding:18px 8px;align-items:center;gap:16px}
  .brand-block{justify-content:center;padding:0}
  .brand-text{display:none}
  .side-nav{width:100%;align-items:center}
  .nav-item{justify-content:center;padding:0;width:48px}
  .nav-item .nav-label{display:none}
  .nav-item::before{left:-4px}
  .side-actions{width:100%;align-items:center}
  .side-actions .btn-label{display:none}
  .side-actions .btn-brand{padding:12px;width:48px}
  .sidebar-foot{display:none}
}
@media (max-width:991.98px){
  .app-sidebar{display:none}
  .app-main{margin-left:0;padding-top:56px}
  .topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:56px;z-index:1045;
    align-items:center;gap:12px;padding:0 14px;
    background:rgba(8,17,31,.94);backdrop-filter:blur(16px) saturate(140%);
    border-bottom:1px solid var(--line);
  }
  .topbar-brand{display:flex;align-items:center;gap:10px;min-width:0;color:var(--text-1)}
  .topbar-brand .brand-mark{flex:0 0 32px;width:32px;height:32px;font-size:16px;border-radius:11px}
  .topbar-brand strong{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .hamburger{
    flex:0 0 38px;width:38px;height:38px;border-radius:11px;
    background:var(--surface);border:1px solid var(--line);color:var(--text-1);
    display:flex;align-items:center;justify-content:center;font-size:16px;
  }
  .hamburger:hover{background:var(--surface-2)}
  .topbar .spacer{flex:1 1 auto}
  .split-grid{grid-template-columns:1fr;gap:24px}
  .sticky-card{position:static}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 0}
  .step:nth-child(3){padding-left:0}
  .step:nth-child(3)::before{display:none}
  .section{padding:64px 0}
  .section--tight{padding-top:52px}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767.98px){
  .page-banner__inner{padding:44px 0 40px;min-height:210px}
  .check-grid{grid-template-columns:1fr}
  .cta-bar{padding:24px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-gold,.cta-actions .btn-ghost{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .listing-row{padding:18px 16px;gap:14px}
  .sticky-card__body{padding:20px 18px}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .container-wide{padding:0 16px}
  .section{padding:48px 0}
  .stat-strip{grid-template-columns:1fr}
  .step-strip{grid-template-columns:1fr;gap:28px}
  .step,.step+.step{padding-left:0;padding-right:0}
  .step+.step::before{display:none}
  .page-banner__glow{display:none}
  .btn-brand,.btn-gold,.btn-ghost{padding:13px 20px}
}