/* roulang page: index */
:root{
  --ink:#08090C;
  --ink-2:#101218;
  --ink-3:#171A22;
  --brand:#2FE6C8;
  --brand-deep:#12A08C;
  --magenta:#FF3D7F;
  --amber:#FFC24B;
  --text:#F2F5F7;
  --text-2:#A7AFBA;
  --text-3:#6C747F;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);
  --line-brand:rgba(47,230,200,.35);
  --glow:0 0 24px -4px rgba(47,230,200,.55);
  --r-lg:16px;
  --r-md:12px;
  --r-pill:999px;
  --sh:0 12px 32px rgba(0,0,0,.5);
  --sh-hi:0 24px 56px rgba(0,0,0,.6);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --sec:88px;
  --bs-body-bg:var(--ink);
  --bs-body-color:var(--text);
  --bs-border-color:var(--line);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:#5ff0d8;
  --bs-border-radius:12px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:#5ff0d8}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(47,230,200,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0A0B0F}
::-webkit-scrollbar-thumb{background:#2A2F3A;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--brand)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.shell{width:100%;max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px}
.sec{padding:var(--sec) 0}
.sec-tight{padding:56px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,3vw,32px);line-height:1.3}
.sec-head .sec-desc{margin-top:10px;color:var(--text-2);font-size:15px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.18em;color:var(--brand);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;box-shadow:var(--glow)}

.btn-main,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform var(--t),background var(--t),border-color var(--t),box-shadow var(--t),color var(--t);
  white-space:nowrap;
}
.btn-main{background:var(--brand);color:#04110E;border-color:var(--brand)}
.btn-main:hover{background:#5ff0d8;color:#04110E;box-shadow:var(--glow);transform:translateY(-1px)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--line-brand)}
.btn-ghost:hover{background:rgba(47,230,200,.12);color:#5ff0d8;transform:translateY(-1px)}
.btn-soft{background:var(--ink-3);color:var(--text);border-color:var(--line)}
.btn-soft:hover{border-color:var(--line-brand);color:var(--brand)}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand)}
.btn-text i{transition:transform var(--t)}
.btn-text:hover i{transform:translateX(4px)}
.btn-lg-c{height:50px;padding:0 28px;font-size:16px}

.badge-c{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1}
.badge-brand{background:rgba(47,230,200,.14);color:var(--brand)}
.badge-magenta{background:rgba(255,61,127,.14);color:var(--magenta)}
.badge-amber{background:rgba(255,194,75,.14);color:var(--amber)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,9,12,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.75),transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:12px;max-width:230px}
.brand-mark{
  position:relative;width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.brand-mark::before{
  content:"";position:absolute;left:9px;top:11px;width:12px;height:12px;
  border-top:2.5px solid #04110E;border-right:2.5px solid #04110E;
  transform:rotate(45deg);border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--text-3)}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-item-link{
  position:relative;font-size:14px;color:var(--text-2);padding:6px 0;font-weight:500;
}
.nav-item-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-item-link:hover{color:var(--brand)}
.nav-item-link:hover::after{transform:scaleX(1)}
.nav-item-link.active{color:var(--brand);text-shadow:0 0 14px rgba(47,230,200,.45)}
.nav-item-link.active::after{transform:scaleX(1)}
.nav-drop{position:relative}
.nav-drop-menu{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translate(-50%,8px);
  min-width:216px;background:var(--ink-3);border:1px solid var(--line);border-radius:14px;
  padding:8px;box-shadow:0 24px 56px rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:translate(-50%,0)}
.nav-drop-menu a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-2)}
.nav-drop-menu a:hover{background:rgba(47,230,200,.1);color:var(--brand)}
.nav-drop-menu i{color:var(--brand);font-size:12px}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);color:var(--text-2);cursor:pointer;transition:all var(--t);
}
.icon-btn:hover{border-color:var(--line-brand);color:var(--brand);box-shadow:var(--glow)}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:transparent;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-2);border-radius:2px;transition:background var(--t)}
.nav-toggle:hover span{background:var(--brand)}
.drawer{
  position:fixed;left:0;right:0;top:64px;bottom:0;background:#0A0B0F;z-index:1029;
  border-top:1px solid var(--line);overflow-y:auto;
}
.drawer-inner{padding:16px 20px 40px;display:flex;flex-direction:column}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;height:56px;font-size:16px;
  color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-link i{color:var(--text-3);font-size:13px}
.drawer-link.active{color:var(--brand)}
.drawer-foot{margin-top:22px}
.drawer-foot .btn-main{width:100%;height:50px}

/* ---------- hero ---------- */
.hero{
  position:relative;display:flex;align-items:flex-end;overflow:hidden;
  min-height:min(78vh,620px);
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  transform:scale(1.03);
}
.hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(8,9,12,.30) 0%,rgba(8,9,12,.72) 55%,rgba(8,9,12,.96) 100%),
    radial-gradient(900px 460px at 12% 6%,rgba(47,230,200,.22),transparent 62%);
}
.hero-inner{position:relative;z-index:2;padding-top:120px;padding-bottom:64px;width:100%}
.hero-copy{max-width:720px}
.hero-title{
  font-size:clamp(30px,4.6vw,48px);line-height:1.2;font-weight:800;letter-spacing:-.02em;
  margin-bottom:18px;
}
.hero-title .hl{
  color:var(--brand);
  text-shadow:0 0 26px rgba(47,230,200,.35);
}
.hero-sub{font-size:clamp(16px,1.6vw,18px);color:var(--text-2);max-width:600px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(16,18,24,.7);border:1px solid var(--line);font-size:13px;color:var(--text-2);
}
.hero-tag i{color:var(--brand);font-size:12px}

/* ---------- stat strip ---------- */
.stat-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,var(--ink-2),rgba(16,18,24,.35));
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:34px 0}
.stat-item{padding-left:18px;border-left:2px solid var(--line-brand)}
.stat-num{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-label{font-size:14px;color:var(--text-2);margin-top:6px}

/* ---------- rail ---------- */
.rail{position:relative;overflow:hidden;padding:6px 0}
.rail::before,.rail::after{
  content:"";position:absolute;top:0;bottom:0;width:70px;z-index:3;pointer-events:none;
}
.rail::before{left:0;background:linear-gradient(90deg,var(--ink),transparent)}
.rail::after{right:0;background:linear-gradient(270deg,var(--ink),transparent)}
.rail-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 20px;scrollbar-width:none;
}
.rail-track::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;background:var(--ink-2);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:14px;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.rail-card:hover{transform:translateY(-4px);border-color:var(--line-brand);box-shadow:var(--sh-hi)}
.rail-thumb{border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(140deg,#141824,#0c0e13)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.rail-card:hover .rail-thumb img{transform:scale(1.06)}
.rail-card h3{font-size:17px;font-weight:600;line-height:1.45;margin:14px 0 8px}
.rail-card p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:12.5px;color:var(--text-3)}
.rail-nav{display:flex;gap:10px}
.rail-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--ink-2);
  color:var(--text-2);cursor:pointer;transition:all var(--t);
}
.rail-btn:hover{border-color:var(--line-brand);color:var(--brand);box-shadow:var(--glow)}

/* ---------- rank grid ---------- */
.rank-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rank-card{
  position:relative;display:flex;gap:16px;align-items:center;padding:18px 20px 18px 22px;
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.rank-card:hover{transform:translateY(-4px);border-color:var(--line-brand);box-shadow:var(--sh-hi)}
.rank-num{
  font-size:34px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(47,230,200,.55);min-width:46px;font-variant-numeric:tabular-nums;
}
.rank-body h3{font-size:17px;font-weight:600;margin:6px 0 6px;line-height:1.45}
.rank-body p{font-size:14px;color:var(--text-2)}
.rank-thumb{flex:0 0 92px;width:92px;height:72px;border-radius:var(--r-md);overflow:hidden}
.rank-thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- category blocks ---------- */
.cat-block{
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.cat-block:hover{border-color:var(--line-brand);box-shadow:var(--sh)}
.cat-block--a{display:grid;grid-template-columns:6fr 6fr}
.cat-block--b{display:grid;grid-template-columns:4fr 8fr;margin-top:24px}
.cat-block--b .cat-media{order:1}
.cat-block--b .cat-copy{order:2;text-align:right}
.cat-block--b .cat-list li{flex-direction:row-reverse}
.cat-block--b .cat-list li i{transform:rotate(180deg)}
.cat-block--c{display:flex;align-items:center;gap:24px;margin-top:24px;padding:0}
.cat-block--c .cat-media{flex:0 0 300px;height:190px}
.cat-block--c .cat-copy{padding:26px 26px 26px 0;flex:1;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cat-media{position:relative;min-height:230px;overflow:hidden}
.cat-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.cat-block:hover .cat-media img{transform:scale(1.05)}
.cat-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,9,12,.15),rgba(8,9,12,.55))}
.cat-copy{padding:30px}
.cat-copy h3{font-size:20px;font-weight:700;margin-bottom:10px}
.cat-copy p{font-size:14.5px;color:var(--text-2);margin-bottom:16px}
.cat-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.cat-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2)}
.cat-list li i{color:var(--brand);font-size:11px}
.cat-block--c .cat-list{flex-direction:row;flex-wrap:wrap;gap:16px;margin-bottom:0}

/* ---------- steps ---------- */
.steps-wrap{
  background:linear-gradient(180deg,rgba(23,26,34,.85),rgba(16,18,24,.5));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 32px;
}
.step-list{position:relative;padding-left:0;display:grid;gap:26px}
.step-item{position:relative;padding-left:64px}
.step-item::before{
  content:"";position:absolute;left:19px;top:36px;bottom:-30px;width:2px;
  background:linear-gradient(180deg,rgba(47,230,200,.55),rgba(47,230,200,.05));
}
.step-item:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  color:var(--brand);border:1.5px solid var(--line-brand);background:rgba(47,230,200,.06);
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step-item p{font-size:14.5px;color:var(--text-2);max-width:760px}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,9,12,.94) 8%,rgba(8,9,12,.72) 52%,rgba(8,9,12,.9) 100%);
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background:repeating-linear-gradient(115deg,transparent 0 26px,rgba(47,230,200,.09) 26px 28px);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center;padding:44px}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:460px}
.cta-form{display:flex;flex-direction:column;gap:12px}
.cta-row{display:flex;gap:12px}
.cta-input{
  flex:1;height:46px;border-radius:var(--r-md);background:rgba(8,9,12,.7);
  border:1px solid var(--line-strong);color:var(--text);padding:0 16px;font-size:15px;
  transition:border-color var(--t),box-shadow var(--t);
}
.cta-input::placeholder{color:var(--text-3)}
.cta-input:focus{outline:none;border-color:var(--brand);box-shadow:var(--glow)}
.cta-hint{font-size:12.5px;color:var(--text-3)}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.post-card{
  display:flex;gap:20px;background:var(--ink-2);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:16px;transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--line-brand);box-shadow:var(--sh-hi)}
.post-thumb{
  flex:0 0 168px;width:168px;height:126px;border-radius:var(--r-md);overflow:hidden;
  background:linear-gradient(140deg,#161a26,#0c0e13);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.post-card:hover .post-thumb img{transform:scale(1.06)}
.post-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:var(--text)}
.post-body h3 a:hover{color:var(--brand)}
.post-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:12.5px;color:var(--text-3)}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);padding:48px 24px;text-align:center;
  color:var(--text-2);background:rgba(16,18,24,.6);
}
.empty-state i{font-size:32px;color:var(--text-3);display:block;margin-bottom:14px}
.empty-state .btn-ghost{margin-top:18px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:border-color var(--t),box-shadow var(--t);position:relative;overflow:hidden;
}
.faq-item[open]{border-color:var(--line-brand);box-shadow:var(--sh)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:500;color:var(--text);transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary i{color:var(--text-3);transition:transform 260ms cubic-bezier(.2,.7,.3,1),color var(--t);flex:0 0 auto}
.faq-item[open] summary{font-weight:700;color:var(--brand)}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--brand)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--brand);border-radius:0 3px 3px 0}
.faq-body{padding:0 22px 22px 22px;color:var(--text-2);font-size:15px}
.faq-body p+p{margin-top:12px}

/* ---------- footer ---------- */
.site-footer{background:#06070A;border-top:1px solid var(--line);position:relative;margin-top:20px}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.7),transparent);
}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 36px}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:18px}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.9;max-width:320px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:inline-flex;
  align-items:center;justify-content:center;color:var(--text-3);transition:all var(--t);
}
.footer-social a:hover{border-color:var(--line-brand);color:var(--brand);box-shadow:var(--glow)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:13.5px;color:var(--text-3)}
.footer-col ul a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px;
  align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 620ms cubic-bezier(.2,.7,.3,1),transform 620ms cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .rank-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:991px){
  :root{--sec:64px}
  .hero-inner{padding-top:96px;padding-bottom:52px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .cat-block--a,.cat-block--b{grid-template-columns:1fr}
  .cat-block--b .cat-media{order:0}
  .cat-block--b .cat-copy{text-align:left}
  .cat-block--b .cat-list li{flex-direction:row}
  .cat-block--b .cat-list li i{transform:none}
  .cat-block--c{flex-direction:column;align-items:stretch}
  .cat-block--c .cat-media{flex:none;height:200px}
  .cat-block--c .cat-copy{padding:24px;display:block}
  .cat-block--c .cat-list{margin-bottom:20px}
  .post-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;padding:32px;gap:24px}
}
@media (max-width:767px){
  :root{--sec:48px}
  .shell{padding-left:16px;padding-right:16px}
  .site-header .shell{padding-left:16px;padding-right:16px}
  .hero{min-height:68vh}
  .hero-actions{gap:10px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{flex:1 1 auto}
  .steps-wrap{padding:26px 20px}
  .step-item{padding-left:54px}
  .step-item::before{left:16px}
  .step-num{width:34px;height:34px;font-size:14px}
  .cta-row{flex-direction:column}
  .cta-row .btn-main{width:100%}
  .footer-top{grid-template-columns:1fr;gap:26px;padding:48px 0 26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .rail-card{flex:0 0 258px}
  .post-card{flex-direction:column}
  .post-thumb{flex:none;width:100%;height:180px}
}
@media (max-width:520px){
  .rank-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .rank-thumb{display:none}
  .btn-main,.btn-ghost,.btn-soft{width:100%}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
}

/* roulang page: article */
:root{
  --bg:#08090C;
  --bg-2:#101218;
  --bg-3:#171A22;
  --primary:#2FE6C8;
  --primary-deep:#12A08C;
  --magenta:#FF3D7F;
  --amber:#FFC24B;
  --text:#F2F5F7;
  --text-2:#A7AFBA;
  --text-3:#6C747F;
  --line:rgba(255,255,255,.06);
  --line-neon:rgba(47,230,200,.35);
  --glow:0 0 24px -4px rgba(47,230,200,.55);
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.5);
  --shadow-hover:0 24px 56px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:#08090C;
  --bs-body-color:#A7AFBA;
  --bs-primary:#2FE6C8;
  --bs-border-color:rgba(255,255,255,.06);
  --bs-link-color:#2FE6C8;
  --bs-link-hover-color:#6ff2dc;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:72px 72px;
  color:var(--text-2);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color 220ms var(--ease),border-color 220ms var(--ease),background-color 220ms var(--ease);}
a:hover{color:#6ff2dc;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,230,200,.28);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0A0B0F;}
::-webkit-scrollbar-thumb{background:#2A2F3A;border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:var(--primary);}

.shell{max-width:1280px;margin:0 auto;padding:0 24px;width:100%;}
h1,h2,h3,h4{color:var(--text);margin:0;font-weight:700;}
p{margin:0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,9,12,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.75),transparent);
  pointer-events:none;
}
.header-inner{display:flex;align-items:center;gap:22px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  position:relative;width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow);flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;left:9px;top:50%;width:8px;height:8px;
  border-top:2px solid #06110F;border-right:2px solid #06110F;
  transform:translateY(-50%) rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--text-3);}

.main-nav{display:flex;align-items:center;gap:28px;margin:0 auto;}
.nav-item-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:14px;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav-item-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
  transform:scaleX(0);transform-origin:left;transition:transform 220ms var(--ease);
}
.nav-item-link:hover,.nav-item-link.active{color:var(--primary);text-shadow:0 0 14px rgba(47,230,200,.5);}
.nav-item-link:hover::after,.nav-item-link.active::after{transform:scaleX(1);}
.nav-drop{position:relative;}
.nav-drop-menu{
  position:absolute;top:calc(100% + 14px);left:-12px;min-width:238px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:14px;
  padding:8px;box-shadow:0 24px 48px rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
}
.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:translateY(0);}
.nav-drop-menu a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);
}
.nav-drop-menu a:hover{background:rgba(47,230,200,.09);color:var(--primary);}
.nav-drop-menu i{width:16px;color:var(--primary);font-size:13px;}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;position:relative;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:transparent;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all 220ms var(--ease);
}
.icon-btn:hover{border-color:var(--line-neon);color:var(--primary);box-shadow:var(--glow);}
.burger{display:inline-flex;}

.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);border:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04140F;font-weight:700;font-size:14px;cursor:pointer;text-decoration:none;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),filter 220ms var(--ease);
}
.btn-neon:hover{color:#04140F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--glow);}
.btn-neon:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--line-neon);color:var(--primary);
  font-weight:600;font-size:14px;cursor:pointer;text-decoration:none;
  transition:background-color 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.btn-ghost:hover{background:rgba(47,230,200,.12);color:var(--primary);transform:translateY(-1px);box-shadow:var(--glow);}

.search-pop{
  position:absolute;top:calc(100% + 14px);right:0;width:320px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:14px;padding:12px;
  box-shadow:0 24px 48px rgba(0,0,0,.6);display:none;
}
.search-pop.open{display:block;}
.search-pop form{display:flex;gap:8px;}
.search-pop input{
  flex:1;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#0C0E13;color:var(--text);padding:0 14px;font-size:14px;
}
.search-pop input:focus{outline:none;border-color:var(--primary);box-shadow:var(--glow);}
.search-pop .btn-neon{height:44px;padding:0 16px;}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:1050;background:#0A0B0F;
  transform:translateX(100%);transition:transform 300ms var(--ease);
  padding:18px 18px 24px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 16px;border-radius:12px;
  color:var(--text);font-size:16px;border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(47,230,200,.09);color:var(--primary);border-color:var(--line-neon);}
.drawer-cta{width:100%;margin-top:16px;}

/* ---------- 头图区 ---------- */
.article-hero{position:relative;height:clamp(280px,38vw,420px);overflow:hidden;}
.article-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  filter:brightness(.5) saturate(1.1);transform:scale(1.02);
}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(600px 300px at 12% 18%,rgba(47,230,200,.22),transparent 70%),
    linear-gradient(180deg,rgba(8,9,12,.45) 0%,rgba(8,9,12,.72) 55%,var(--bg) 100%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.03) 0 1px,transparent 1px 14px);
  opacity:.6;
}
.hero-inner{
  position:relative;z-index:2;height:100%;display:flex;flex-direction:column;
  justify-content:flex-end;padding:0 0 34px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:14px;}
.badge-neon,.badge-magenta,.badge-amber,.badge-plain{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-neon{background:rgba(47,230,200,.14);color:var(--primary);}
.badge-magenta{background:rgba(255,61,127,.14);color:var(--magenta);}
.badge-amber{background:rgba(255,194,75,.14);color:var(--amber);}
.badge-plain{background:rgba(255,255,255,.06);color:var(--text-2);}
.hero-lead{color:var(--text-2);font-size:15px;max-width:640px;}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding:22px 0 0;}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--text-3);}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:rgba(255,255,255,.18);}
.crumb .current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{padding:20px 0 30px;border-bottom:1px solid var(--line);}
.article-title{
  font-size:clamp(26px,4vw,40px);font-weight:800;line-height:1.22;
  letter-spacing:-.02em;max-width:820px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:18px;font-size:13px;color:var(--text-3);}
.meta-row span{display:inline-flex;align-items:center;gap:7px;}
.meta-row i{color:var(--primary);font-size:12px;}
.meta-row .amber{color:var(--amber);}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:52px;padding:48px 0 0;align-items:start;}

/* ---------- 正文 ---------- */
.article-body{font-size:17px;line-height:1.95;color:var(--text-2);max-width:760px;word-break:break-word;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:clamp(20px,2.4vw,26px);color:var(--text);font-weight:700;
  margin:2em 0 .8em;padding-left:14px;border-left:3px solid var(--primary);
  scroll-margin-top:92px;
}
.article-body h3{font-size:19px;color:var(--text);font-weight:600;margin:1.6em 0 .6em;scroll-margin-top:92px;}
.article-body ul,.article-body ol{padding-left:1.25em;margin:0 0 1.2em;}
.article-body li{margin-bottom:.5em;}
.article-body ul li::marker{color:var(--primary);}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body blockquote{
  border-left:3px solid var(--magenta);background:var(--bg-3);
  padding:16px 20px;margin:1.4em 0;border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body img{border-radius:var(--r-img);margin:1.4em 0;}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body th{color:var(--text);font-weight:600;border-bottom-color:var(--line-neon);}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-color:rgba(47,230,200,.35);text-underline-offset:3px;}
.article-body a:hover{text-decoration-color:var(--primary);}
.article-body strong{color:var(--text);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* ---------- 侧栏 ---------- */
.article-side{position:relative;}
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow);
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.side-card:hover{border-color:var(--line-neon);}
.side-card h3{
  font-size:14px;font-weight:700;color:var(--text);letter-spacing:.06em;
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-card h3 i{color:var(--primary);font-size:13px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;line-height:1.5;
}
.toc-list a:hover{background:rgba(47,230,200,.07);color:var(--primary);border-left-color:var(--primary);}
.side-links{display:flex;flex-direction:column;gap:10px;}
.side-links a{
  display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:12px;
  background:#0C0E13;border:1px solid var(--line);color:var(--text-2);font-size:14px;
}
.side-links a:hover{border-color:var(--line-neon);color:var(--primary);transform:translateY(-2px);}
.side-links i{color:var(--primary);margin-top:4px;font-size:13px;}
.side-links em{display:block;font-style:normal;font-size:12px;color:var(--text-3);margin-top:3px;}
.side-cta{width:100%;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed rgba(255,255,255,.16);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;background:rgba(255,255,255,.012);
}
.empty-state i{font-size:32px;color:var(--text-3);margin-bottom:16px;display:block;}
.empty-state h3{font-size:18px;margin-bottom:10px;}
.empty-state p{color:var(--text-3);font-size:14px;margin-bottom:22px;}

/* ---------- 文末 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);align-items:center;}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:4px;}
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px;}
.post-nav a{
  display:block;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;transition:border-color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.post-nav a:hover{border-color:var(--line-neon);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.post-nav .label{display:block;font-size:12px;color:var(--text-3);margin-bottom:8px;letter-spacing:.08em;}
.post-nav .title{color:var(--text);font-size:15px;font-weight:600;line-height:1.5;}

.related{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;}
.section-head p{font-size:14px;color:var(--text-3);margin-top:8px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--primary);white-space:nowrap;}
.text-link i{transition:transform 220ms var(--ease);}
.text-link:hover i{transform:translateX(4px);}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px;overflow:hidden;
  transition:border-color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.post-card:hover{border-color:var(--line-neon);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.post-card .thumb{
  border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;margin-bottom:14px;
  background:linear-gradient(135deg,#101218,#1A1F29);
}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.post-card:hover .thumb img{transform:scale(1.06);}
.post-card h3{font-size:17px;font-weight:600;line-height:1.45;color:var(--text);margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card p{font-size:14px;color:var(--text-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:12px;color:var(--text-3);}
.post-card .foot i{color:var(--primary);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;margin:80px 0 0;border-radius:20px;
  border:1px solid var(--line);padding:44px;
  background:linear-gradient(120deg,#0D1015 0%,#141926 55%,#0D1015 100%);
}
.cta-band::before{
  content:"";position:absolute;top:-60%;left:-10%;width:70%;height:220%;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.14),transparent);
  transform:rotate(18deg);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;top:-60%;right:6%;width:26%;height:220%;
  background:linear-gradient(90deg,transparent,rgba(255,61,127,.12),transparent);
  transform:rotate(18deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:10px;}
.cta-inner p{color:var(--text-3);font-size:14px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#06070A;margin-top:88px;position:relative;}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.6),transparent);
}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text strong{font-size:17px;}
.footer-col h4{font-size:14px;letter-spacing:.08em;margin-bottom:18px;color:var(--text);}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.9;max-width:340px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);font-size:14px;
}
.footer-social a:hover{border-color:var(--line-neon);color:var(--primary);box-shadow:var(--glow);}
.footer-bottom{
  border-top:1px solid var(--line);padding:24px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line-neon);background:rgba(16,18,24,.9);color:var(--primary);
  display:none;align-items:center;justify-content:center;cursor:pointer;z-index:1020;
  backdrop-filter:blur(8px);transition:box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.to-top.show{display:inline-flex;}
.to-top:hover{box-shadow:var(--glow);transform:translateY(-2px);}

.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:991px){
  .shell{padding:0 20px;}
  .article-layout{grid-template-columns:1fr;gap:32px;padding-top:36px;}
  .side-sticky{position:static;}
  .article-body{max-width:100%;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px;}
  .cta-band{padding:32px;}
  .search-pop{width:280px;}
}
@media (max-width:767px){
  .header-inner{height:56px;gap:14px;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .post-nav{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .related{padding-top:52px;}
  .cta-band{margin-top:56px;}
}
@media (max-width:575px){
  .shell{padding:0 16px;}
  .card-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .article-body{font-size:16px;}
  .article-hero{height:260px;}
  .meta-row{gap:14px;}
  .cta-band{padding:26px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-neon,.cta-actions .btn-ghost{width:100%;}
  .search-pop{width:calc(100vw - 32px);right:-8px;}
}

/* roulang page: category1 */
:root{
  --bg:#08090C;
  --bg-2:#101218;
  --bg-3:#171A22;
  --primary:#2FE6C8;
  --primary-dark:#12A08C;
  --accent:#FF3D7F;
  --amber:#FFC24B;
  --text:#F2F5F7;
  --text-2:#A7AFBA;
  --text-3:#6C747F;
  --line:rgba(255,255,255,.06);
  --line-neon:rgba(47,230,200,.35);
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.5);
  --shadow-hover:0 24px 56px rgba(0,0,0,.6);
  --glow:0 0 24px -4px rgba(47,230,200,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --shell:1280px;
  --bs-body-bg:#08090C;
  --bs-body-color:#F2F5F7;
  --bs-border-color:rgba(255,255,255,.06);
  --bs-link-color:#2FE6C8;
  --bs-link-hover-color:#7FF5E0;
  --bs-border-radius:16px;
  --bs-primary:#2FE6C8;
  --bs-primary-rgb:47,230,200;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:130px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:#7FF5E0}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
::selection{background:rgba(47,230,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0A0B0F}
::-webkit-scrollbar-thumb{background:#2A2F3A;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}

.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(8,9,12,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.75),transparent);
  opacity:.75;
}
.header-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  position:relative;width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  box-shadow:var(--glow);
}
.brand-mark::after{
  content:"";position:absolute;inset:0;margin:auto;width:10px;height:10px;
  border-top:2.5px solid #04120F;border-right:2.5px solid #04120F;
  transform:rotate(45deg) translate(-2px,2px);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--text-2)}
.main-nav{display:flex;align-items:center;gap:28px;margin-right:auto}
.nav-item-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:14px;color:var(--text-2);padding:6px 0;white-space:nowrap;
  transition:color .22s var(--ease);
}
.nav-item-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:var(--glow);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-item-link:hover{color:var(--text)}
.nav-item-link:hover::after{transform:scaleX(1)}
.nav-item-link.active{color:var(--primary);text-shadow:0 0 12px rgba(47,230,200,.45)}
.nav-item-link.active::after{transform:scaleX(1)}
.nav-drop{position:relative}
.nav-drop-menu{
  position:absolute;top:calc(100% + 14px);left:-8px;min-width:236px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:14px;padding:8px;
  box-shadow:0 24px 56px rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drop-menu a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-drop-menu a:hover{background:rgba(47,230,200,.1);color:var(--primary)}
.nav-drop-menu a i{width:16px;color:var(--primary);font-size:13px}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:transparent;color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-neon)}
.btn-primary-neon{
  height:44px;padding:0 22px;border-radius:var(--r-pill);border:0;
  background:var(--primary);color:#04120F;font-weight:700;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.btn-primary-neon:hover{background:#4FF0D6;color:#04120F;transform:translateY(-1px);box-shadow:var(--glow)}
.btn-primary-neon:active{transform:translateY(1px)}
.btn-ghost-neon{
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  border:1px solid var(--line-neon);background:transparent;color:var(--primary);
  font-weight:600;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost-neon:hover{background:rgba(47,230,200,.12);color:var(--primary);transform:translateY(-1px)}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:transparent;color:var(--text);font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
}
.mobile-drawer{
  position:fixed;inset:0;z-index:1200;background:#0A0B0F;
  display:flex;flex-direction:column;padding:16px 20px 24px;
  transform:translateX(100%);transition:transform .3s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:transparent;color:var(--text);font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;margin:12px 0 0}
.drawer-nav a{
  height:56px;display:flex;align-items:center;gap:10px;font-size:16px;
  color:var(--text-2);border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--primary)}
.drawer-nav a i{font-size:14px;color:var(--primary);width:18px}
.drawer-cta{width:100%;margin-top:auto;height:48px}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;min-height:280px;
  display:flex;align-items:flex-end;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(60% 80% at 10% 15%,rgba(47,230,200,.22),transparent 68%),
    linear-gradient(180deg,rgba(8,9,12,.55) 0%,rgba(8,9,12,.9) 62%,rgba(8,9,12,.98) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(115deg,transparent 0 20px,rgba(47,230,200,.05) 20px 21px);
}
.page-hero .shell{position:relative;z-index:2;padding-top:64px;padding-bottom:44px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,61,127,.14);color:var(--accent);
  font-size:12px;letter-spacing:.06em;
}
.page-hero h1{
  font-size:clamp(28px,4vw,42px);font-weight:800;line-height:1.22;
  letter-spacing:-.02em;margin:16px 0 14px;max-width:860px;
}
.page-hero .lead{color:var(--text-2);font-size:16px;max-width:700px;margin:0}
.breadcrumb-x{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);margin-top:22px;flex-wrap:wrap}
.breadcrumb-x a{color:var(--text-3)}
.breadcrumb-x a:hover{color:var(--primary)}
.breadcrumb-x .sep{opacity:.5}
.breadcrumb-x .current{color:var(--text-3)}

/* ---------- anchor bar ---------- */
.anchor-bar{
  position:sticky;top:64px;z-index:900;
  background:rgba(8,9,12,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-bar .shell{
  display:flex;gap:10px;overflow-x:auto;
  padding-top:12px;padding-bottom:12px;
  scrollbar-width:none;
}
.anchor-bar .shell::-webkit-scrollbar{display:none}
.anchor-bar a{
  flex:0 0 auto;height:40px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);font-size:14px;color:var(--text-2);
  display:inline-flex;align-items:center;gap:8px;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.anchor-bar a:hover{color:var(--primary);border-color:var(--line-neon)}
.anchor-bar a.active{
  background:var(--primary);border-color:transparent;color:#04120F;font-weight:700;
  box-shadow:var(--glow);
}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-alt{background:linear-gradient(180deg,rgba(16,18,24,0),rgba(16,18,24,.65) 30%,rgba(16,18,24,0))}
.section-head{max-width:780px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;margin-bottom:14px}
.section-head p{color:var(--text-2);max-width:680px;margin:0}

/* ---------- prep cards ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prep-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.prep-card:hover{transform:translateY(-4px);border-color:var(--line-neon);box-shadow:var(--shadow-hover)}
.prep-icon{
  width:46px;height:46px;border-radius:12px;
  background:rgba(47,230,200,.12);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px;
}
.prep-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.prep-card p{color:var(--text-2);font-size:15px;margin:0}
.prep-note{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:26px;padding:18px 24px;border-radius:14px;
  background:var(--bg-3);border:1px solid var(--line);border-left:3px solid var(--primary);
}
.prep-note i{color:var(--primary);margin-top:5px}
.prep-note p{color:var(--text-2);font-size:15px;margin:0}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:58px}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(47,230,200,.7),rgba(47,230,200,.05));
  box-shadow:0 0 18px rgba(47,230,200,.35);
}
.tl-item{position:relative;padding-bottom:52px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  position:absolute;left:-58px;top:2px;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-neon);background:#0A1412;color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 0 18px -6px rgba(47,230,200,.7);
}
.tl-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.tl-item:nth-child(even) .tl-media{order:-1}
.tl-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-3);
}
.tl-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s var(--ease)}
.tl-media:hover img{transform:scale(1.06)}
.tl-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(47,230,200,.14);color:var(--primary);
  font-size:12px;margin-bottom:14px;
}
.tl-tag.amber{background:rgba(255,194,75,.14);color:var(--amber)}
.tl-tag.pink{background:rgba(255,61,127,.14);color:var(--accent)}
.tl-body h3{font-size:20px;font-weight:600;margin-bottom:12px}
.tl-body p{color:var(--text-2);font-size:15.5px;margin:0}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.check-item{
  display:flex;gap:14px;padding:20px 22px;border-radius:14px;
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.check-item:hover{border-color:var(--line-neon);transform:translateY(-2px)}
.check-item i{color:var(--primary);margin-top:6px;font-size:15px}
.check-item strong{display:block;font-size:16.5px;font-weight:600;margin-bottom:6px}
.check-item p{margin:0;color:var(--text-2);font-size:15px}
.tip-card{
  display:flex;gap:16px;margin-top:28px;padding:22px 26px;border-radius:14px;
  background:var(--bg-3);border:1px solid var(--line);border-left:3px solid var(--accent);
}
.tip-card i{color:var(--accent);margin-top:6px}
.tip-card p{margin:0;color:var(--text-2);font-size:15px}
.tip-card strong{color:var(--text)}

/* ---------- update list ---------- */
.update-list{display:flex;flex-direction:column;gap:14px}
.update-row{
  display:grid;grid-template-columns:130px 1fr auto;gap:22px;align-items:center;
  padding:20px 24px;border-radius:14px;background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.update-row:hover{border-color:var(--line-neon);transform:translateY(-3px);box-shadow:var(--shadow)}
.update-date{color:var(--amber);font-size:13px;letter-spacing:.04em}
.update-row h3{font-size:17px;font-weight:600;margin-bottom:6px}
.update-row p{margin:0;color:var(--text-2);font-size:15px}
.update-row .arrow{color:var(--text-3);font-size:14px;transition:transform .22s var(--ease),color .22s var(--ease)}
.update-row:hover .arrow{color:var(--primary);transform:translateX(4px)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  position:relative;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:border-color .22s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);transform:scaleY(0);transform-origin:top;
  transition:transform .26s var(--ease);
}
.faq-item[open]{border-color:var(--line-neon)}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 60px 20px 26px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:14px;
  transition:transform .26s var(--ease),color .22s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);color:var(--primary)}
.faq-item[open] summary{font-weight:700}
.faq-body{padding:0 26px 22px;color:var(--text-2);font-size:15.5px}
.faq-body p{margin:0 0 10px}
.faq-body p:last-child{margin-bottom:0}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;
  padding:50px;border-radius:24px;
  background:var(--bg-3);border:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(50% 90% at 88% 50%,rgba(47,230,200,.16),transparent 70%),
    repeating-linear-gradient(115deg,transparent 0 28px,rgba(47,230,200,.06) 28px 30px);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:12px}
.cta-band p{color:var(--text-2);margin:0}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1;min-width:0;height:48px;padding:0 18px;border-radius:var(--r-img);
  background:#0C0E13;border:1px solid var(--line);color:var(--text);font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,230,200,.16)}
.cta-form .btn-primary-neon{height:48px;padding:0 26px;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{position:relative;background:#06070A;margin-top:20px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.6),transparent);
}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text)}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col ul a{color:var(--text-2);font-size:14.5px}
.footer-col ul a:hover{color:var(--primary)}
.footer-col p{color:var(--text-2);font-size:14.5px;margin:18px 0 0}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);font-size:14px;
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.footer-social a:hover{color:var(--primary);border-color:var(--line-neon);box-shadow:var(--glow)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- motion ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .prep-grid{grid-template-columns:repeat(3,1fr)}
  .footer-top{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
}
@media (max-width:992px){
  .shell{padding:0 20px}
  .section{padding:64px 0}
  .header-inner{height:60px}
  .anchor-bar{top:60px}
  .prep-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:36px 28px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .page-hero{min-height:240px}
  .page-hero .shell{padding-top:48px;padding-bottom:32px}
  .anchor-bar{top:56px}
  .tl-grid{grid-template-columns:1fr;gap:18px}
  .tl-item:nth-child(even) .tl-media{order:0}
  .timeline{padding-left:48px}
  .tl-node{left:-48px;width:28px;height:28px;font-size:11px}
  .timeline::before{left:13px}
  .check-grid{grid-template-columns:1fr}
  .update-row{grid-template-columns:1fr;gap:8px}
  .update-row .arrow{display:none}
  .cta-form{flex-direction:column}
  .cta-form .btn-primary-neon{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:576px){
  .shell{padding:0 16px}
  .section{padding:44px 0}
  .prep-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}
  .faq-item summary{padding:18px 52px 18px 20px;font-size:16px}
  .faq-body{padding:0 20px 18px}
  .prep-card{padding:22px 20px}
}

/* roulang page: category2 */
:root{
  --bg:#08090C;
  --bg-2:#101218;
  --bg-3:#171A22;
  --primary:#2FE6C8;
  --primary-deep:#12A08C;
  --magenta:#FF3D7F;
  --amber:#FFC24B;
  --text:#F2F5F7;
  --text-2:#A7AFBA;
  --text-3:#6C747F;
  --line:rgba(255,255,255,.06);
  --line-neon:rgba(47,230,200,.35);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(0,0,0,.5);
  --shadow-lg:0 24px 56px rgba(0,0,0,.6);
  --glow:0 0 24px -4px rgba(47,230,200,.55);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:#08090C;
  --bs-body-color:#F2F5F7;
  --bs-border-color:rgba(255,255,255,.06);
  --bs-primary:#2FE6C8;
  --bs-link-color:#2FE6C8;
  --bs-link-hover-color:#7CF4E2;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:#7CF4E2}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0A0B0F}
::-webkit-scrollbar-thumb{background:#2A2F3A;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}

.shell{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
@media (max-width:992px){.shell{padding:0 20px}}
@media (max-width:576px){.shell{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,9,12,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.55),transparent);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;max-width:220px}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;position:relative;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 18px -4px rgba(47,230,200,.65);
}
.brand-mark::after{
  content:"";position:absolute;top:9px;bottom:9px;left:9px;right:11px;
  border:2px solid #06231E;border-left:0;border-radius:2px 7px 7px 2px;
}
.brand-text{display:flex;align-items:baseline;gap:6px;white-space:nowrap}
.brand-text strong{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--text-2)}

.main-nav{margin-left:auto;align-items:center;gap:28px}
.nav-item-link{
  position:relative;display:inline-flex;align-items:center;
  color:var(--text-2);text-decoration:none;font-size:14px;padding:6px 0;
  transition:color 220ms var(--ease);
}
.nav-item-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(47,230,200,.15));
  transform:scaleX(0);transform-origin:left;
  transition:transform 220ms var(--ease);
}
.nav-item-link:hover{color:var(--primary)}
.nav-item-link:hover::after{transform:scaleX(1)}
.nav-item-link.active{color:var(--primary);text-shadow:0 0 12px rgba(47,230,200,.55)}
.nav-item-link.active::after{transform:scaleX(1)}

.nav-drop{position:relative;display:flex;align-items:center}
.nav-drop-menu{
  position:absolute;top:calc(100% + 14px);left:-14px;min-width:236px;z-index:60;
  background:var(--bg-3);border:1px solid var(--line);border-radius:14px;padding:8px;
  box-shadow:var(--shadow-lg);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
}
.nav-drop:hover .nav-drop-menu,
.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:none}
.nav-drop-menu a{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;
  color:var(--text-2);text-decoration:none;font-size:14px;white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.nav-drop-menu a i{color:var(--text-3);width:16px;text-align:center}
.nav-drop-menu a:hover{background:rgba(47,230,200,.1);color:var(--primary)}
.nav-drop-menu a:hover i{color:var(--primary)}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;
  background:transparent;border:1px solid var(--line);border-radius:12px;
  color:var(--text);cursor:pointer;
  transition:border-color 200ms var(--ease),color 200ms var(--ease);
}
.nav-toggle:hover{border-color:var(--line-neon);color:var(--primary)}

.mobile-drawer{
  position:fixed;left:0;right:0;top:56px;bottom:0;z-index:1025;
  background:#0A0B0F;padding:16px 20px 32px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms;
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:none}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;height:56px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);text-decoration:none;
  transition:color 200ms var(--ease);
}
.mobile-drawer a.drawer-link:hover{color:var(--primary)}
.mobile-drawer .drawer-cta{margin-top:auto;padding-top:24px}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  background:var(--primary);color:#06231E;font-size:15px;font-weight:700;
  text-decoration:none;cursor:pointer;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.btn-main:hover{background:#57F0D8;color:#041B17;box-shadow:var(--glow);transform:translateY(-1px)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:999px;
  background:transparent;border:1px solid var(--line-neon);color:var(--primary);
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  transition:background 220ms var(--ease),transform 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-ghost:hover{background:rgba(47,230,200,.12);color:var(--primary);transform:translateY(-1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;text-decoration:none;
}
.btn-text i{transition:transform 220ms var(--ease)}
.btn-text:hover i{transform:translateX(4px)}

/* ---------- 页头 ---------- */
.page-banner{
  position:relative;overflow:hidden;
  padding:76px 0 60px;
  background:
    linear-gradient(115deg,rgba(47,230,200,.18),rgba(47,230,200,0) 58%),
    linear-gradient(180deg,rgba(8,9,12,.55),rgba(8,9,12,.94)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat,
    var(--bg-2);
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 1px,transparent 1px 16px);
  pointer-events:none;
}
.page-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.45),transparent);
}
.page-banner .shell{position:relative;z-index:2;max-width:920px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
  background:rgba(47,230,200,.14);color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.08em;
}
.eyebrow i{font-size:11px}
.page-banner h1{
  font-size:clamp(30px,4.6vw,48px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;color:var(--text);
}
.page-banner .banner-sub{
  margin-top:18px;max-width:640px;
  font-size:17px;color:var(--text-2);line-height:1.85;
}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  margin-top:26px;font-size:12px;color:var(--text-3);
}
.crumb a{color:var(--text-3);text-decoration:none}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb .current{color:var(--text-2)}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:relative;z-index:3;margin-top:-26px;
}
.anchor-inner{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px;border:1px solid var(--line);border-radius:999px;
  background:rgba(16,18,24,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.anchor-inner a{
  display:inline-flex;align-items:center;gap:8px;
  min-height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);color:var(--text-2);
  font-size:14px;text-decoration:none;
  transition:color 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease);
}
.anchor-inner a:hover{color:var(--primary);border-color:var(--line-neon);background:rgba(47,230,200,.08)}
.anchor-inner a.is-active{
  background:var(--primary);border-color:var(--primary);color:#06231E;font-weight:700;
  box-shadow:var(--glow);
}
@media (max-width:576px){
  .anchor-inner{border-radius:20px;padding:12px}
  .anchor-inner a{flex:1 1 46%;justify-content:center;font-size:13px}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--alt{background:linear-gradient(180deg,#0A0C11,#08090C);border-top:1px solid var(--line)}
@media (max-width:992px){.section{padding:64px 0}}
@media (max-width:576px){.section{padding:48px 0}}

.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.accent{display:block;width:56px;height:3px;border-radius:3px;margin-bottom:18px;background:linear-gradient(90deg,var(--primary),rgba(47,230,200,0))}

/* ---------- 安全要点卡 ---------- */
.point-grid{
  display:grid;gap:22px;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
@media (max-width:1199px){.point-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:991px){.point-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.point-grid{grid-template-columns:1fr}}

.point-card{
  position:relative;padding:26px 22px 24px;border-radius:var(--radius);
  background:var(--bg-2);border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.point-card:hover{transform:translateY(-4px);border-color:var(--line-neon);box-shadow:var(--shadow-lg)}
.point-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,230,200,.14);color:var(--primary);font-size:18px;margin-bottom:18px;
}
.point-card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:10px}
.point-card p{font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:960px}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(47,230,200,.6),rgba(47,230,200,.06));
}
.tl-item{position:relative;padding-left:64px;margin-bottom:30px}
.tl-item:last-child{margin-bottom:0}
.tl-num{
  position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-neon);background:#0B0D12;color:var(--primary);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 0 18px -6px rgba(47,230,200,.6);
}
.tl-card{
  padding:22px 24px;border-radius:var(--radius);
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color 220ms var(--ease),transform 220ms var(--ease);
}
.tl-card:hover{border-color:var(--line-neon);transform:translateY(-2px)}
.tl-card h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px}
.tl-card p{font-size:15px;color:var(--text-2);line-height:1.85}
.tl-media{display:grid;grid-template-columns:1fr 220px;gap:22px;align-items:center}
@media (max-width:767px){.tl-media{grid-template-columns:1fr}}
.tl-media .img-wrap{border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line)}
.tl-media .img-wrap img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 220ms var(--ease)}
.tl-media:hover .img-wrap img{transform:scale(1.06)}

/* ---------- 问题索引 ---------- */
.q-index{
  display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr));
  margin-bottom:36px;
}
@media (max-width:767px){.q-index{grid-template-columns:1fr;margin-bottom:28px}}
.q-index-item{
  display:flex;align-items:flex-start;gap:14px;
  padding:18px 20px;border-radius:var(--radius-sm);
  background:var(--bg-3);border:1px solid var(--line);
  color:var(--text);font-size:15px;text-decoration:none;line-height:1.7;
  transition:border-color 220ms var(--ease),transform 220ms var(--ease),background 220ms var(--ease);
}
.q-index-item:hover{border-color:var(--line-neon);transform:translateY(-2px);background:#1B1F28;color:var(--text)}
.q-index-item .num{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;padding-top:1px;
}

/* ---------- FAQ 手风琴 ---------- */
.faq-acc .accordion-item{
  position:relative;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius) !important;
  margin-bottom:16px;
  transition:border-color 260ms var(--ease),box-shadow 260ms var(--ease);
}
.faq-acc .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);transform:scaleY(0);transform-origin:top;
  transition:transform 260ms var(--ease);
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:var(--line-neon);box-shadow:var(--shadow);
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed))::before{transform:scaleY(1)}
.faq-acc .accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:600;line-height:1.6;
  padding:22px 24px;box-shadow:none;
  display:flex;align-items:center;gap:12px;
  transition:color 220ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--primary);font-weight:700}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;margin-left:auto;
  font-size:12px;color:var(--text-3);
  transition:transform 260ms var(--ease),color 220ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--primary)}
.faq-acc .accordion-body{
  padding:0 24px 24px;color:var(--text-2);font-size:15px;line-height:1.9;
}
.faq-acc .accordion-body p+p{margin-top:12px}

/* ---------- 提示卡 ---------- */
.notice-card{
  display:flex;gap:20px;align-items:flex-start;
  padding:26px 28px;border-radius:var(--radius);
  background:var(--bg-2);border:1px solid var(--line);
  border-left:3px solid var(--magenta);
}
.notice-card i{color:var(--magenta);font-size:18px;padding-top:4px}
.notice-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.notice-card p{font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- 相关指引卡 ---------- */
.guide-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:991px){.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.guide-grid{grid-template-columns:1fr}}

.guide-card{
  display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;text-decoration:none;color:var(--text);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.guide-card:hover{transform:translateY(-4px);border-color:var(--line-neon);box-shadow:var(--shadow-lg);color:var(--text)}
.guide-card .img-wrap{overflow:hidden;aspect-ratio:16/10;background:#0D0F14}
.guide-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.guide-card:hover .img-wrap img{transform:scale(1.06)}
.guide-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;
}
.badge-teal{background:rgba(47,230,200,.14);color:var(--primary)}
.badge-magenta{background:rgba(255,61,127,.14);color:var(--magenta)}
.badge-amber{background:rgba(255,194,75,.14);color:var(--amber)}
.guide-body h3{font-size:18px;font-weight:600;line-height:1.45}
.guide-body p{font-size:14px;color:var(--text-2);line-height:1.8;flex:1}
.guide-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);padding-top:6px;
}
.guide-foot i{transition:transform 220ms var(--ease);color:var(--primary)}
.guide-card:hover .guide-foot i{transform:translateX(4px)}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:44px 0;
  background:
    linear-gradient(100deg,rgba(47,230,200,.14),rgba(8,9,12,0) 62%),
    repeating-linear-gradient(115deg,rgba(255,255,255,.03) 0 1px,transparent 1px 18px),
    #0C0E13;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{display:flex;align-items:center;gap:32px;justify-content:space-between;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);font-weight:700;line-height:1.35}
.cta-inner p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:767px){
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:#06070A;padding:64px 0 28px;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.5),transparent);
}
.footer-top{
  display:grid;gap:36px;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
}
@media (max-width:991px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.footer-top{grid-template-columns:1fr;gap:28px}}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.85}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{
  font-size:14px;color:var(--text-2);text-decoration:none;
  transition:color 200ms var(--ease),padding-left 200ms var(--ease);
}
.footer-col ul a:hover{color:var(--primary);padding-left:4px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:14px;text-decoration:none;
  transition:border-color 220ms var(--ease),color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.footer-social a:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--glow)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
@media (max-width:575px){
  .footer-bottom{flex-direction:column;margin-top:32px}
}

/* ---------- 进场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --bg:#08090C;
  --bg-2:#101218;
  --bg-3:#171A22;
  --brand:#2FE6C8;
  --brand-deep:#12A08C;
  --brand-soft:rgba(47,230,200,.14);
  --magenta:#FF3D7F;
  --magenta-soft:rgba(255,61,127,.14);
  --amber:#FFC24B;
  --amber-soft:rgba(255,194,75,.14);
  --text:#F2F5F7;
  --text-2:#A7AFBA;
  --text-3:#6C747F;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);
  --line-brand:rgba(47,230,200,.35);
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.5);
  --shadow-hover:0 24px 56px rgba(0,0,0,.6);
  --glow:0 0 24px -4px rgba(47,230,200,.55);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --sec-gap:88px;
  --header-h:64px;

  --bs-primary:#2FE6C8;
  --bs-body-bg:#08090C;
  --bs-body-color:#F2F5F7;
  --bs-border-color:rgba(255,255,255,.06);
  --bs-link-color:#2FE6C8;
  --bs-link-hover-color:#5BF0D8;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:#5BF0D8;}
img{max-width:100%;display:block;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(47,230,200,.28);color:#fff;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0A0B0F;}
::-webkit-scrollbar-thumb{background:#2A2F3A;border-radius:99px;}
::-webkit-scrollbar-thumb:hover{background:var(--brand);}

.shell{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#06251F;padding:10px 18px;border-radius:0 0 12px 0;z-index:999;}
.skip-link:focus{left:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(8,9,12,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.55),transparent);
}
.header-inner{display:flex;align-items:center;gap:28px;height:var(--header-h);}
.brand{display:flex;align-items:center;gap:10px;max-width:220px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;position:relative;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.brand-mark::after{
  content:"";position:absolute;left:11px;top:8px;width:8px;height:14px;
  border-right:2.4px solid #06251F;border-bottom:2.4px solid #06251F;
  transform:rotate(-45deg) skew(-6deg,-6deg);border-radius:1px;
}
.brand-text{display:flex;flex-direction:column;line-height:1;}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--text-3);margin-top:4px;}

.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-item-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:14px;font-weight:500;color:var(--text-2);padding:8px 0;white-space:nowrap;
}
.nav-item-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-item-link:hover{color:var(--brand);}
.nav-item-link:hover::after{transform:scaleX(1);}
.nav-item-link.active,.nav-item-link.is-current{color:var(--brand);text-shadow:0 0 14px rgba(47,230,200,.45);}
.nav-item-link.active::after,.nav-item-link.is-current::after{transform:scaleX(1);}

.nav-drop{position:relative;}
.nav-drop-menu{
  position:absolute;top:calc(100% + 14px);left:-14px;min-width:238px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:14px;
  padding:8px;box-shadow:0 24px 56px rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.nav-drop:hover .nav-drop-menu,
.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:translateY(0);}
.nav-drop-menu a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);transition:var(--ease);
}
.nav-drop-menu a i{color:var(--text-3);width:16px;text-align:center;transition:color var(--ease);}
.nav-drop-menu a:hover{background:rgba(255,255,255,.04);color:var(--text);}
.nav-drop-menu a:hover i{color:var(--brand);}
.nav-drop-menu a.active{color:var(--brand);background:var(--brand-soft);}
.nav-drop-menu a.active i{color:var(--brand);}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line-strong);color:var(--text-2);
  cursor:pointer;transition:var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--line-brand);box-shadow:var(--glow);}

/* 按钮 */
.btn-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:var(--ease);white-space:nowrap;
}
.btn-brand{background:var(--brand);color:#06251F;}
.btn-brand:hover{background:#5BF0D8;color:#06251F;box-shadow:var(--glow);transform:translateY(-1px);}
.btn-brand:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line-brand);color:var(--brand);}
.btn-ghost:hover{background:rgba(47,230,200,.12);color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);}
.btn-text i{transition:transform var(--ease);font-size:12px;}
.btn-text:hover i{transform:translateX(4px);}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:var(--header-h) 0 0 0;background:#0A0B0F;z-index:890;
  padding:16px 20px 28px;display:flex;flex-direction:column;
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:var(--ease);
  border-top:1px solid var(--line);overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.mobile-drawer a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);
}
.mobile-drawer a.m-link.active{color:var(--brand);}
.mobile-drawer a.m-sub{height:50px;font-size:15px;color:var(--text-2);padding-left:14px;}
.mobile-drawer .m-cta{margin-top:auto;padding-top:24px;}
.mobile-drawer .m-cta .btn-brand{width:100%;}

/* ============ 页头横幅 ============ */
.page-banner{
  position:relative;overflow:hidden;
  padding:72px 0 60px;
  min-height:260px;
  display:flex;align-items:center;
  background:
    radial-gradient(120% 130% at 10% 0%, rgba(47,230,200,.18), transparent 62%),
    repeating-linear-gradient(115deg, rgba(255,255,255,.035) 0 1px, transparent 1px 15px),
    linear-gradient(180deg, rgba(47,230,200,.08), rgba(8,9,12,0) 78%),
    var(--bg-2);
  border-bottom:1px solid var(--line);
}
.page-banner::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle, rgba(255,61,127,.16), transparent 68%);
  pointer-events:none;
}
.page-banner .shell{position:relative;z-index:2;}
.crumbs{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);
  margin-bottom:18px;letter-spacing:.02em;
}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{opacity:.5;}
.crumbs .current{color:var(--text-3);}
.page-banner h1{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.22;letter-spacing:-.02em;
  max-width:880px;
}
.page-banner h1 .hl{
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-banner .lead{
  margin-top:18px;max-width:660px;font-size:16px;color:var(--text-2);line-height:1.8;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
}
.tag-brand{background:var(--brand-soft);color:var(--brand);}
.tag-magenta{background:var(--magenta-soft);color:var(--magenta);}
.tag-amber{background:var(--amber-soft);color:var(--amber);}
.tag-line{background:transparent;border:1px solid var(--line-strong);color:var(--text-2);}

/* ============ 页内锚点导航 ============ */
.anchor-bar{
  position:sticky;top:var(--header-h);z-index:700;
  background:rgba(8,9,12,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;gap:12px;overflow-x:auto;padding-top:14px;padding-bottom:14px;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--text-2);
  font-size:13px;font-weight:600;transition:var(--ease);white-space:nowrap;
}
.anchor-pill:hover{color:var(--brand);border-color:var(--line-brand);}
.anchor-pill.active{background:var(--brand);border-color:var(--brand);color:#06251F;box-shadow:var(--glow);}

/* ============ 板块通用 ============ */
.section{padding:var(--sec-gap) 0;}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:36px;flex-wrap:wrap;
}
.sec-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;letter-spacing:-.01em;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.22em;color:var(--brand);margin-bottom:12px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);display:inline-block;}
.sec-note{max-width:420px;font-size:14px;color:var(--text-3);line-height:1.8;margin:0;}

/* ============ 动态卡片网格 ============ */
.notice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.notice-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  transition:var(--ease);
}
.notice-card:hover{border-color:var(--line-brand);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.notice-card .thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,#141822,#0B0D12);}
.notice-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.notice-card:hover .thumb img{transform:scale(1.06);}
.notice-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,9,12,0) 45%,rgba(8,9,12,.72));
}
.notice-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.notice-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px;}
.notice-body h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.notice-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:18px;}
.notice-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
}
.notice-foot .meta{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.notice-foot .go{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);}
.notice-foot .go i{font-size:11px;transition:transform var(--ease);}
.notice-card:hover .notice-foot .go i{transform:translateX(4px);}

/* 横向卡片变体 */
.notice-card.horizontal{flex-direction:row;align-items:stretch;}
.notice-card.horizontal .thumb{flex:0 0 42%;width:42%;aspect-ratio:auto;min-height:210px;}
.notice-card.horizontal .notice-body{flex:1 1 auto;justify-content:center;}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(47,230,200,.75),rgba(47,230,200,.06));
}
.tl-item{position:relative;display:flex;gap:26px;padding:0 0 34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:relative;z-index:2;flex:0 0 auto;
  width:32px;height:32px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg);border:2px solid var(--brand);color:var(--brand);
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(8,9,12,1);
}
.tl-body{
  flex:1 1 auto;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px 22px;transition:var(--ease);
}
.tl-body:hover{border-color:var(--line-brand);box-shadow:var(--shadow-card);}
.tl-body h3{font-size:17px;font-weight:600;margin:10px 0 8px;}
.tl-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;}

/* ============ 提示说明列表 ============ */
.tip-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.tip-item{
  display:flex;gap:16px;padding:20px 22px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  transition:var(--ease);
}
.tip-item:hover{border-color:var(--line-brand);transform:translateY(-3px);}
.tip-icon{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:15px;
}
.tip-item h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.tip-item p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0;}

/* ============ 提示卡（品红竖线） ============ */
.notice-card-inline{
  position:relative;background:var(--bg-3);
  border:1px solid var(--line);border-left:3px solid var(--magenta);
  border-radius:14px;padding:26px 28px;
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
}
.notice-card-inline h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.notice-card-inline p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;max-width:760px;}
.notice-card-inline .act{margin-left:auto;flex:0 0 auto;}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  padding:44px 44px;
  background:
    repeating-linear-gradient(105deg, rgba(47,230,200,.07) 0 2px, transparent 2px 46px),
    radial-gradient(90% 160% at 6% 10%, rgba(47,230,200,.22), transparent 60%),
    radial-gradient(80% 140% at 96% 90%, rgba(255,61,127,.16), transparent 62%),
    var(--bg-3);
  border:1px solid var(--line-brand);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;margin-bottom:10px;}
.cta-band p{font-size:14.5px;color:var(--text-2);max-width:560px;margin:0;line-height:1.8;}
.cta-band .act{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:#06070A;border-top:1px solid var(--line);position:relative;}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,230,200,.55),transparent);
}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:28px;height:28px;border-radius:8px;}
.footer-brand .brand-mark::after{left:10px;top:7px;width:7px;height:13px;}
.footer-brand .brand-text strong{font-size:17px;}
.footer-brand .brand-text em{font-size:10.5px;}
.footer-col p{font-size:14px;color:var(--text-3);line-height:1.85;margin:0;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{font-size:14px;color:var(--text-3);}
.footer-col ul a:hover{color:var(--brand);}
.footer-social{display:flex;gap:12px;margin-top:22px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--text-3);font-size:14px;transition:var(--ease);
}
.footer-social a:hover{color:var(--brand);border-color:var(--line-brand);box-shadow:var(--glow);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);line-height:1.7;
}

/* ============ 进入视口动效 ============ */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1);}
[data-reveal].in{opacity:1;transform:translateY(0);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec-gap:72px;}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  :root{--sec-gap:64px;--header-h:56px;}
  .shell{padding:0 20px;}
  .brand-mark{width:26px;height:26px;border-radius:8px;}
  .brand-mark::after{left:9px;top:7px;width:7px;height:12px;}
  .brand-text strong{font-size:17px;}
  .page-banner{padding:56px 0 48px;}
  .notice-grid{grid-template-columns:1fr;}
  .tip-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 36px;}
  .cta-band{padding:34px 28px;}
}
@media (max-width:767.98px){
  :root{--sec-gap:48px;}
  body{font-size:16px;}
  .shell{padding:0 16px;}
  .notice-card.horizontal{flex-direction:column;}
  .notice-card.horizontal .thumb{flex:none;width:100%;aspect-ratio:16/10;min-height:0;}
  .notice-card-inline{padding:22px 20px;gap:18px;}
  .notice-card-inline .act{margin-left:0;width:100%;}
  .notice-card-inline .act .btn-brand{width:100%;}
  .tl-item{gap:18px;}
  .timeline::before{left:19px;}
  .tl-dot{width:26px;height:26px;font-size:11px;}
  .cta-band{border-radius:16px;padding:28px 20px;}
  .cta-band .act{width:100%;}
  .cta-band .act .btn-brand,.cta-band .act .btn-ghost{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .sec-head{margin-bottom:26px;}
}
@media (max-width:575.98px){
  .page-banner h1{font-size:26px;}
  .notice-body{padding:18px 16px 16px;}
  .btn-brand,.btn-ghost{height:46px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  [data-reveal]{opacity:1;transform:none;}
}