/* roulang page: index */
:root{
  --ky-bg:#070C14;
  --ky-bg-alt:#0B1421;
  --ky-glass:rgba(20,32,48,.62);
  --ky-glass-soft:rgba(20,32,48,.42);
  --ky-primary:#23E0C8;
  --ky-primary-dim:rgba(35,224,200,.12);
  --ky-primary-line:rgba(35,224,200,.35);
  --ky-accent:#FFB347;
  --ky-accent-dim:rgba(255,179,71,.14);
  --ky-ok:#3ED598;
  --ky-warn:#FFB347;
  --ky-err:#FF6B6B;
  --ky-0:#E9F2F6;
  --ky-1:#93A6B8;
  --ky-2:#64758A;
  --ky-line:rgba(255,255,255,.09);
  --ky-line-soft:rgba(255,255,255,.055);
  --ky-r-lg:18px;
  --ky-r-md:14px;
  --ky-r-sm:12px;
  --ky-shadow:0 10px 30px -12px rgba(0,0,0,.7);
  --ky-shadow-active:0 0 0 1px rgba(35,224,200,.35),0 8px 28px -8px rgba(35,224,200,.45);
  --ky-ease:cubic-bezier(.2,.7,.3,1);
  --ky-sec:96px;
  --ky-font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;

  --bs-primary:#23E0C8;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9F2F6;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-link-color:#23E0C8;
  --bs-link-hover-color:#7df3e4;
  --bs-border-radius:14px;
  --bs-border-radius-lg:18px;
  --bs-font-sans-serif:var(--ky-font);
  --bs-body-font-size:16px;
  --bs-body-line-height:1.85;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  font-family:var(--ky-font);
  font-size:16px;
  line-height:1.85;
  color:var(--ky-0);
  background-color:var(--ky-bg);
  background-image:
    radial-gradient(1100px 560px at 50% -8%, rgba(35,224,200,.08), transparent 62%),
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size:auto,40px 40px,40px 40px;
  background-attachment:fixed,fixed,fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--ky-primary);text-decoration:none;transition:color .22s var(--ky-ease)}
a:hover{color:#7df3e4}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ky-0)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px;border-radius:6px}
.ky-visually-hidden,.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
@media (min-width:1440px){.container{max-width:1320px}}

/* ---------- header ---------- */
.ky-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:72px;display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ky-ease),border-color .24s var(--ky-ease),backdrop-filter .24s var(--ky-ease);
}
.ky-header.is-scrolled{
  background:rgba(7,12,20,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--ky-line);
}
.ky-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.ky-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ky-0)}
.ky-logo:hover{color:var(--ky-0)}
.ky-logo-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:10px;background:rgba(35,224,200,.1);box-shadow:inset 0 0 0 1px rgba(35,224,200,.25)}
.ky-logo-text{font-size:18px;font-weight:700;letter-spacing:.01em}
.ky-nav{display:flex;align-items:center;gap:28px}
.ky-nav-link{
  position:relative;font-size:15px;color:var(--ky-1);padding:6px 0;text-decoration:none;
  transition:color .18s var(--ky-ease);
}
.ky-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ky-primary);box-shadow:0 0 10px rgba(35,224,200,.8);
  transition:width .18s var(--ky-ease);
}
.ky-nav-link:hover,.ky-nav-link.is-active{color:var(--ky-primary)}
.ky-nav-link:hover::after,.ky-nav-link.is-active::after{width:100%}
.ky-nav-right{display:flex;align-items:center;gap:12px}
.ky-burger{
  width:44px;height:44px;border:1px solid var(--ky-line);border-radius:12px;background:rgba(255,255,255,.04);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .2s var(--ky-ease),background-color .2s var(--ky-ease);
}
.ky-burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ky-0);opacity:.85}
.ky-burger:hover{border-color:var(--ky-primary-line);background:rgba(35,224,200,.08)}

/* drawer */
.ky-drawer{background:rgba(8,14,23,.97);color:var(--ky-0);border-left:1px solid var(--ky-line);width:min(340px,86vw)}
.ky-drawer .offcanvas-header{border-bottom:1px solid var(--ky-line);padding:18px 20px}
.ky-drawer .offcanvas-title{font-size:17px;font-weight:700}
.ky-drawer .offcanvas-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:8px}
.ky-drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--ky-line);background:rgba(255,255,255,.04);
  color:var(--ky-0);font-size:20px;line-height:1;cursor:pointer;
}
.ky-drawer-close:hover{border-color:var(--ky-primary-line);color:var(--ky-primary)}
.ky-drawer-link{
  display:block;padding:14px 16px;border-radius:var(--ky-r-sm);border:1px solid var(--ky-line-soft);
  color:var(--ky-1);font-size:16px;background:rgba(255,255,255,.02);
}
.ky-drawer-link:hover{color:var(--ky-primary);border-color:var(--ky-primary-line)}
.ky-drawer-link.is-active{color:var(--ky-primary);border-color:var(--ky-primary-line);background:var(--ky-primary-dim)}
.ky-drawer-cta{margin-top:12px;width:100%}

/* ---------- buttons ---------- */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--ky-r-sm);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .22s var(--ky-ease),color .22s var(--ky-ease),border-color .22s var(--ky-ease),transform .22s var(--ky-ease),box-shadow .22s var(--ky-ease);
}
.ky-btn-sm{height:36px;padding:0 16px;font-size:14px}
.ky-btn-primary{
  background:var(--ky-primary);color:#06110F;
  box-shadow:0 8px 24px -10px rgba(35,224,200,.6);
}
.ky-btn-primary:hover{background:#3fe9d3;color:#06110F;transform:translateY(-1px);box-shadow:0 12px 32px -10px rgba(35,224,200,.8)}
.ky-btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px -10px rgba(35,224,200,.7)}
.ky-btn-glass{
  background:rgba(255,255,255,.05);border-color:var(--ky-primary-line);color:var(--ky-primary);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.ky-btn-glass:hover{border-color:rgba(35,224,200,.7);color:#7df3e4;transform:translateY(-1px)}
.ky-btn-outline{background:transparent;border-color:var(--ky-line);color:var(--ky-0)}
.ky-btn-outline:hover{border-color:var(--ky-primary-line);color:var(--ky-primary);transform:translateY(-1px)}
.ky-btn-ghost{background:transparent;border:none;color:var(--ky-1);height:auto;padding:0;box-shadow:none}
.ky-btn-ghost:hover{color:var(--ky-primary)}
.ky-btn:disabled,.ky-btn.is-disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none}
.ky-btn .ky-arrow{display:inline-block;transition:transform .22s var(--ky-ease)}
.ky-btn:hover .ky-arrow{transform:translateX(3px)}

/* ---------- badges ---------- */
.ky-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--ky-primary-dim);color:var(--ky-primary);
  font-variant-numeric:tabular-nums;
}
.ky-badge-accent{background:var(--ky-accent-dim);color:var(--ky-accent)}
.ky-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ky-2);font-variant-numeric:tabular-nums}
.ky-dot{width:3px;height:3px;border-radius:50%;background:var(--ky-2);display:inline-block;flex:none}

/* ---------- hero ---------- */
.ky-hero{position:relative;overflow:hidden;padding:calc(72px + 84px) 0 84px;min-height:600px;display:flex;align-items:center}
.ky-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;opacity:.55}
.ky-hero-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(700px 420px at 12% 34%, rgba(35,224,200,.16), transparent 68%),
    linear-gradient(180deg, rgba(7,12,20,.72) 0%, rgba(7,12,20,.84) 46%, var(--ky-bg) 100%);
}
.ky-hero-inner{position:relative;z-index:2;max-width:820px}
.ky-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--ky-primary);font-weight:600;
  padding:6px 12px;border-radius:999px;border:1px solid var(--ky-primary-line);background:rgba(35,224,200,.07);
}
.ky-hero h1{
  font-size:clamp(28px,4.6vw,50px);line-height:1.16;letter-spacing:-.01em;font-weight:700;
  margin:20px 0 16px;
}
.ky-hero-sub{font-size:clamp(15px,1.6vw,18px);color:var(--ky-1);max-width:600px;margin-bottom:28px}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.ky-hero-pills{display:flex;flex-wrap:wrap;gap:10px}
.ky-hero-pills li{
  font-size:13px;color:var(--ky-1);padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--ky-line);font-variant-numeric:tabular-nums;
}

/* ---------- sections ---------- */
.ky-sec{padding:var(--ky-sec) 0;position:relative}
.ky-sec-alt{background:var(--ky-bg-alt);border-top:1px solid var(--ky-line-soft);border-bottom:1px solid var(--ky-line-soft)}
.ky-sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:16px;margin-bottom:40px}
.ky-sec-head .ky-head-main{flex:1 1 420px;min-width:260px}
.ky-sec-tag{display:block;font-size:12px;letter-spacing:.18em;color:var(--ky-primary);font-weight:600;margin-bottom:10px}
.ky-sec-head h2{font-size:clamp(22px,3vw,34px);line-height:1.25}
.ky-sec-sub{font-size:15px;color:var(--ky-1);margin-top:10px;max-width:620px}
.ky-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ky-primary);
  border:1px solid var(--ky-primary-line);border-radius:999px;padding:8px 16px;background:rgba(35,224,200,.06);
}
.ky-more:hover{background:rgba(35,224,200,.14);color:#7df3e4}
.ky-more span{transition:transform .22s var(--ky-ease)}
.ky-more:hover span{transform:translateX(3px)}

/* ---------- toc ---------- */
.ky-toc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.ky-toc-item{
  display:flex;align-items:center;gap:16px;padding:18px 20px;
  background:var(--ky-glass);border:1px solid var(--ky-line);border-radius:var(--ky-r-md);
  color:var(--ky-0);transition:border-color .22s var(--ky-ease),transform .22s var(--ky-ease),box-shadow .22s var(--ky-ease),background-color .22s var(--ky-ease);
}
.ky-toc-item:hover{border-color:var(--ky-primary-line);transform:translateY(-2px);box-shadow:var(--ky-shadow-active);color:var(--ky-0);background:rgba(20,32,48,.78)}
.ky-toc-num{font-size:20px;font-weight:700;color:var(--ky-accent);font-variant-numeric:tabular-nums;flex:none;width:36px}
.ky-toc-body{flex:1;min-width:0}
.ky-toc-body strong{display:block;font-size:16px;font-weight:600;color:var(--ky-0)}
.ky-toc-item:hover .ky-toc-body strong{color:var(--ky-primary)}
.ky-toc-body em{display:block;font-style:normal;font-size:13px;color:var(--ky-1);margin-top:2px}
.ky-toc-arrow{color:var(--ky-2);font-size:16px;transition:transform .22s var(--ky-ease),color .22s var(--ky-ease)}
.ky-toc-item:hover .ky-toc-arrow{color:var(--ky-primary);transform:translateX(4px)}

/* ---------- cards ---------- */
.ky-card{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  background:var(--ky-glass);border:1px solid var(--ky-line);border-radius:var(--ky-r-lg);
  transition:transform .22s var(--ky-ease),border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease);
}
.ky-card:hover{transform:translateY(-4px);border-color:var(--ky-primary-line);box-shadow:var(--ky-shadow-active)}
.ky-card-media{position:relative;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--ky-line-soft);background:#0d1725}
.ky-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ky-ease)}
.ky-card:hover .ky-card-media img{transform:scale(1.04)}
.ky-card-media .ky-badge{position:absolute;left:14px;top:14px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.ky-card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.ky-card-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ky-card-title a{color:var(--ky-0)}
.ky-card:hover .ky-card-title a{color:var(--ky-primary)}
.ky-card-sum{
  font-size:14px;color:var(--ky-1);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.ky-card-lg .ky-card-media{aspect-ratio:16/9}
.ky-card-lg .ky-card-title{font-size:clamp(19px,2.1vw,24px);-webkit-line-clamp:2}
.ky-card-lg .ky-card-body{padding:24px}
.ky-card-sm .ky-card-media{aspect-ratio:16/10}
.ky-card-sm .ky-card-title{font-size:16px}
.ky-card-sm .ky-card-body{padding:18px;gap:8px}
.ky-slash{
  position:absolute;left:14px;top:0;width:6px;height:44px;background:var(--ky-primary);
  clip-path:polygon(0 0,100% 0,100% 72%,0 100%);box-shadow:0 0 14px rgba(35,224,200,.6);
}

/* ---------- strip ---------- */
.ky-strip{position:relative}
.ky-strip-track{
  display:flex;gap:18px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(35,224,200,.35) transparent;
}
.ky-strip-track::-webkit-scrollbar{height:6px}
.ky-strip-track::-webkit-scrollbar-thumb{background:rgba(35,224,200,.3);border-radius:999px}
.ky-strip-track::-webkit-scrollbar-track{background:rgba(255,255,255,.04);border-radius:999px}
.ky-strip-card{
  flex:0 0 calc((100% - 54px)/4);scroll-snap-align:start;
  background:var(--ky-glass);border:1px solid var(--ky-line);border-radius:var(--ky-r-md);overflow:hidden;
  transition:transform .22s var(--ky-ease),border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease);
}
.ky-strip-card:hover{transform:translateY(-4px);border-color:var(--ky-primary-line);box-shadow:var(--ky-shadow-active)}
.ky-strip-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1px solid var(--ky-line-soft)}
.ky-strip-body{padding:14px 16px 16px}
.ky-strip-body h3{font-size:15px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.ky-strip-body h3 a{color:var(--ky-0)}
.ky-strip-card:hover h3 a{color:var(--ky-primary)}

/* ---------- save bar ---------- */
.ky-save{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:26px 28px;border-radius:var(--ky-r-lg);
  background:
    linear-gradient(120deg, rgba(35,224,200,.12), rgba(255,179,71,.06) 62%, rgba(20,32,48,.6)),
    var(--ky-glass);
  border:1px solid var(--ky-line);
  box-shadow:var(--ky-shadow);
}
.ky-save-text{min-width:240px;flex:1 1 320px}
.ky-save-text strong{display:block;font-size:18px;font-weight:600;margin-bottom:6px}
.ky-save-text span{font-size:14px;color:var(--ky-1)}
.ky-cta-actions{position:relative;display:flex;gap:12px;flex-wrap:wrap}
.ky-tip{
  position:absolute;left:0;top:calc(100% + 10px);
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(9,16,25,.96);border:1px solid var(--ky-primary-line);color:var(--ky-primary);
  font-size:13px;opacity:0;transform:translateY(-4px);pointer-events:none;
  transition:opacity .22s var(--ky-ease),transform .22s var(--ky-ease);white-space:nowrap;
}
.ky-tip.is-show{opacity:1;transform:translateY(0)}
.ky-tip.is-accent{border-color:rgba(255,179,71,.5);color:var(--ky-accent)}

/* ---------- posts ---------- */
.ky-post{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  background:var(--ky-glass);border:1px solid var(--ky-line);border-radius:var(--ky-r-lg);
  transition:transform .22s var(--ky-ease),border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease);
}
.ky-post:hover{transform:translateY(-4px);border-color:var(--ky-primary-line);box-shadow:var(--ky-shadow-active)}
.ky-post-media{display:block;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--ky-line-soft);background:#0d1725}
.ky-post-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ky-ease)}
.ky-post:hover .ky-post-media img{transform:scale(1.04)}
.ky-post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.ky-post-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ky-post-title a{color:var(--ky-0)}
.ky-post:hover .ky-post-title a{color:var(--ky-primary)}
.ky-post-sum{
  font-size:14px;color:var(--ky-1);line-height:1.7;margin:0;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.ky-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  text-align:center;padding:32px 20px;border-radius:var(--ky-r-lg);
  background:var(--ky-glass-soft);border:1px dashed var(--ky-line);
}
.ky-empty svg{opacity:.6}
.ky-empty-title{font-size:16px;font-weight:600;color:var(--ky-0);margin:0}
.ky-empty-sub{font-size:13px;color:var(--ky-2);margin:0}

/* ---------- faq ---------- */
.ky-faq .accordion-item{
  background:var(--ky-glass);border:1px solid var(--ky-line);border-radius:var(--ky-r-md)!important;
  margin-bottom:12px;overflow:hidden;
}
.ky-faq .accordion-item:last-child{margin-bottom:0}
.ky-faq .accordion-button{
  background:transparent;color:var(--ky-0);font-size:16px;font-weight:600;line-height:1.6;
  padding:18px 52px 18px 20px;box-shadow:none;border:0;position:relative;
}
.ky-faq .accordion-button:not(.collapsed){color:var(--ky-primary);background:rgba(35,224,200,.05)}
.ky-faq .accordion-button:focus{box-shadow:none;outline:none}
.ky-faq .accordion-button:focus-visible{outline:2px solid var(--ky-primary);outline-offset:-2px}
.ky-faq .accordion-button::after{
  content:"";position:absolute;right:20px;top:50%;width:14px;height:14px;margin:0;
  background:none;border-right:2px solid var(--ky-primary);border-bottom:2px solid var(--ky-primary);
  transform:translateY(-70%) rotate(45deg);transition:transform .24s var(--ky-ease);opacity:.85;
}
.ky-faq .accordion-button:not(.collapsed)::after{transform:translateY(-30%) rotate(225deg)}
.ky-faq .accordion-body{
  position:relative;padding:0 24px 20px 24px;font-size:15px;color:var(--ky-1);line-height:1.85;
  background:rgba(35,224,200,.03);
}
.ky-faq .accordion-body::before{
  content:"";position:absolute;left:0;top:4px;bottom:20px;width:3px;border-radius:3px;
  background:var(--ky-primary);box-shadow:0 0 12px rgba(35,224,200,.7);
}

/* ---------- final cta ---------- */
.ky-final{
  position:relative;overflow:hidden;border-radius:var(--ky-r-lg);
  border:1px solid var(--ky-line);padding:46px 40px;
  background:linear-gradient(120deg, rgba(35,224,200,.14), rgba(11,20,33,.9) 65%);
}
.ky-final-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.16}
.ky-final-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.ky-final h2{font-size:clamp(22px,2.8vw,32px);line-height:1.3;max-width:620px}
.ky-final p{font-size:15px;color:var(--ky-1);margin-top:10px;max-width:560px}

/* ---------- footer ---------- */
.ky-footer{border-top:1px solid var(--ky-line);background:rgba(9,16,25,.72);padding:64px 0 0;margin-top:var(--ky-sec)}
.ky-footer-desc{font-size:14px;color:var(--ky-1);margin-top:16px;max-width:280px}
.ky-footer-title{font-size:14px;font-weight:600;color:var(--ky-primary);margin-bottom:16px}
.ky-footer-list li{margin-bottom:10px}
.ky-footer-list a{font-size:14px;color:var(--ky-1);display:inline-block;transition:color .2s var(--ky-ease),transform .2s var(--ky-ease)}
.ky-footer-list a:hover{color:var(--ky-primary);transform:translateX(2px)}
.ky-sub{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.ky-sub input{
  flex:1 1 150px;min-width:0;height:36px;padding:0 14px;border-radius:var(--ky-r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--ky-line);color:var(--ky-0);font-size:14px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);transition:border-color .2s var(--ky-ease),box-shadow .2s var(--ky-ease);
}
.ky-sub input::placeholder{color:var(--ky-2)}
.ky-sub input:focus{outline:none;border-color:var(--ky-primary);box-shadow:0 0 0 3px rgba(35,224,200,.16)}
.ky-sub-tip{font-size:13px;color:var(--ky-ok);min-height:20px;margin:10px 0 0}
.ky-footer-bar{
  margin-top:48px;border-top:1px solid var(--ky-line-soft);padding:20px 0;
  text-align:center;font-size:13px;color:var(--ky-2);font-variant-numeric:tabular-nums;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .ky-strip-card{flex:0 0 calc((100% - 36px)/3)}
}
@media (max-width:991.98px){
  :root{--ky-sec:72px}
  .ky-hero{padding:calc(72px + 56px) 0 64px;min-height:540px}
  .ky-toc{grid-template-columns:1fr}
  .ky-strip-card{flex:0 0 calc((100% - 18px)/2)}
  .ky-final{padding:36px 26px}
}
@media (max-width:575.98px){
  :root{--ky-sec:56px}
  .ky-hero{min-height:calc(460px + 72px)}
  .ky-hero h1{font-size:28px}
  .ky-sec-head{margin-bottom:28px}
  .ky-strip-card{flex:0 0 78%}
  .ky-btn{width:100%}
  .ky-hero-actions .ky-btn{width:100%}
  .ky-cta-actions .ky-btn{width:100%}
  .ky-cta-actions{width:100%}
  .ky-save{padding:22px 20px}
  .ky-footer{padding-top:48px}
}
@media (max-width:767.98px){
  .ky-card-lg .ky-card-media{aspect-ratio:16/10}
  .ky-toc-body em{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  body{background-attachment:scroll,scroll,scroll}
}

/* roulang page: article */
:root{
  --ky-bg:#070C14;
  --ky-bg-alt:#0B1421;
  --ky-panel:rgba(20,32,48,.62);
  --ky-panel-solid:#101B29;
  --ky-primary:#23E0C8;
  --ky-accent:#FFB347;
  --ky-text:#E9F2F6;
  --ky-text-dim:#93A6B8;
  --ky-text-weak:#64758A;
  --ky-line:rgba(255,255,255,.09);
  --ky-line-strong:rgba(255,255,255,.16);
  --ky-success:#3ED598;
  --ky-warning:#FFB347;
  --ky-danger:#FF6B6B;
  --ky-radius:18px;
  --ky-radius-sm:14px;
  --ky-radius-btn:12px;
  --ky-shadow:0 10px 30px -12px rgba(0,0,0,.7);
  --ky-shadow-glow:0 0 0 1px rgba(35,224,200,.35),0 8px 28px -8px rgba(35,224,200,.45);
  --ky-ease:cubic-bezier(.2,.7,.3,1);
  --ky-section:96px;
  --bs-primary:#23E0C8;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9F2F6;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-link-color:#23E0C8;
  --bs-link-hover-color:#5CEEDB;
  --bs-border-radius:18px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  background-color:var(--ky-bg);
  color:var(--ky-text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:40px 40px;
}
body::after{
  content:"";position:fixed;left:50%;top:-320px;transform:translateX(-50%);
  width:1100px;height:700px;border-radius:50%;pointer-events:none;z-index:0;
  background:radial-gradient(circle,rgba(35,224,200,.08),transparent 68%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s var(--ky-ease)}
a:hover{color:#5CEEDB}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
.container{width:100%;max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;position:relative;z-index:1}
@media (min-width:1440px){.container{max-width:1320px}}
.ky-section{padding:var(--ky-section) 0;position:relative;z-index:1}
.ky-section-alt{background:var(--ky-bg-alt);border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line)}
.ky-eyebrow{display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--ky-primary);font-weight:600;margin-bottom:14px}
.ky-h2{font-size:clamp(22px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.ky-h3{font-size:clamp(18px,2vw,22px);font-weight:600;line-height:1.4}
.ky-sub{color:var(--ky-text-dim);font-size:15px;margin-top:12px;max-width:640px}
.ky-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.ky-num{font-variant-numeric:tabular-nums}

/* ===== 导航 ===== */
.ky-header{position:fixed;top:0;left:0;right:0;z-index:1040;border-bottom:1px solid transparent;transition:background .24s var(--ky-ease),border-color .24s var(--ky-ease),backdrop-filter .24s var(--ky-ease)}
.ky-header.is-scrolled{background:rgba(7,12,20,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--ky-line)}
.ky-header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.ky-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ky-text);font-size:18px;font-weight:700;letter-spacing:-.01em}
.ky-logo:hover{color:var(--ky-text)}
.ky-logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background:rgba(35,224,200,.12);border:1px solid rgba(35,224,200,.3);box-shadow:0 0 18px -6px rgba(35,224,200,.6)}
.ky-logo-text{white-space:nowrap}
.ky-nav{align-items:center;gap:28px}
.ky-nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--ky-text-dim)}
.ky-nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;width:0;margin:0 auto;border-radius:2px;background:var(--ky-primary);box-shadow:0 0 10px rgba(35,224,200,.85);transition:width .18s var(--ky-ease)}
.ky-nav-link:hover{color:var(--ky-primary)}
.ky-nav-link:hover::after,.ky-nav-link.is-active::after{width:100%}
.ky-nav-link.is-active{color:var(--ky-primary)}
.ky-nav-link:focus-visible{outline:2px solid var(--ky-primary);outline-offset:3px;border-radius:4px}
.ky-header-right{display:flex;align-items:center;gap:12px}
.ky-burger{width:44px;height:44px;border:1px solid var(--ky-line-strong);border-radius:12px;background:rgba(20,32,48,.62);display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.ky-burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ky-text)}
.ky-burger:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}

/* ===== 抽屉 ===== */
.ky-drawer{background:rgba(9,16,26,.97);backdrop-filter:blur(16px);border-left:1px solid var(--ky-line);width:320px;color:var(--ky-text)}
.ky-drawer .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--ky-line)}
.ky-drawer .offcanvas-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px}
.ky-drawer-title{font-size:16px;font-weight:600;color:var(--ky-text-dim)}
.ky-drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--ky-line-strong);background:transparent;color:var(--ky-text);font-size:22px;line-height:1;cursor:pointer}
.ky-drawer-close:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}
.ky-drawer-link{padding:13px 14px;border-radius:12px;border:1px solid var(--ky-line);background:rgba(20,32,48,.5);color:var(--ky-text);font-size:15px}
.ky-drawer-link:hover,.ky-drawer-link.is-active{border-color:rgba(35,224,200,.5);color:var(--ky-primary)}

/* ===== 按钮 ===== */
.ky-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--ky-radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .22s var(--ky-ease);white-space:nowrap}
.ky-btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px}
.ky-btn-primary{background:var(--ky-primary);color:#06110F;box-shadow:0 8px 28px -10px rgba(35,224,200,.65)}
.ky-btn-primary:hover{background:var(--ky-primary);color:#06110F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 12px 34px -8px rgba(35,224,200,.8)}
.ky-btn-primary:active{transform:translateY(0)}
.ky-btn-glass{background:var(--ky-panel);border-color:rgba(35,224,200,.35);color:var(--ky-primary);backdrop-filter:blur(10px)}
.ky-btn-glass:hover{background:rgba(20,32,48,.85);border-color:rgba(35,224,200,.7);color:var(--ky-primary)}
.ky-btn-ghost{background:transparent;color:var(--ky-text-dim)}
.ky-btn-ghost:hover{color:var(--ky-primary)}
.ky-btn:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}
.ky-btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none}

/* ===== 徽章 ===== */
.ky-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;background:rgba(35,224,200,.12);color:var(--ky-primary);border:1px solid rgba(35,224,200,.22)}
.ky-badge-time{background:rgba(255,179,71,.12);color:var(--ky-accent);border-color:rgba(255,179,71,.24)}

/* ===== 文章首屏 ===== */
.ky-article-hero{position:relative;padding:132px 0 0;overflow:hidden}
.ky-article-hero::before{content:"";position:absolute;inset:0;background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;opacity:.2;-webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.95),transparent 78%);mask-image:linear-gradient(to bottom,rgba(0,0,0,.95),transparent 78%);pointer-events:none}
.ky-article-hero .container{position:relative;z-index:2}
.ky-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ky-text-weak);white-space:nowrap;overflow-x:auto;padding-bottom:4px;margin-bottom:18px}
.ky-crumb a{color:var(--ky-text-dim)}
.ky-crumb a:hover{color:var(--ky-primary)}
.ky-crumb .ky-crumb-sep{color:var(--ky-text-weak)}
.ky-crumb .ky-crumb-current{color:rgba(35,224,200,.6);overflow:hidden;text-overflow:ellipsis;max-width:260px}
.ky-article-title{font-size:clamp(28px,4.6vw,50px);font-weight:700;line-height:1.16;letter-spacing:-.01em;margin:16px 0 0}
.ky-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;margin-top:22px;font-size:14px;color:var(--ky-text-dim);font-variant-numeric:tabular-nums}
.ky-meta-item{display:inline-flex;align-items:center;gap:7px}
.ky-meta-dot{width:5px;height:5px;border-radius:50%;background:var(--ky-primary);box-shadow:0 0 8px rgba(35,224,200,.9)}
.ky-cover{margin-top:36px;border-radius:var(--ky-radius);overflow:hidden;border:1px solid rgba(255,255,255,.08);box-shadow:var(--ky-shadow)}
.ky-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}

/* ===== 正文 ===== */
.ky-article-main{padding:56px 0 0;position:relative;z-index:1}
.ky-article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:#D7E3EA}
.ky-article-body p{margin:0 0 1.1em}
.ky-article-body h2{font-size:clamp(22px,3vw,28px);font-weight:700;line-height:1.3;margin:2em 0 .8em;padding-left:16px;position:relative;color:var(--ky-text)}
.ky-article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--ky-primary);box-shadow:0 0 12px rgba(35,224,200,.75)}
.ky-article-body h3{font-size:clamp(18px,2vw,22px);font-weight:600;margin:1.7em 0 .6em;color:var(--ky-text)}
.ky-article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--ky-text)}
.ky-article-body a{color:var(--ky-primary);border-bottom:1px solid rgba(35,224,200,.35)}
.ky-article-body a:hover{border-bottom-color:var(--ky-primary)}
.ky-article-body ul,.ky-article-body ol{padding-left:1.35em;margin:0 0 1.1em}
.ky-article-body ul li{list-style:disc;margin:.4em 0}
.ky-article-body ol li{list-style:decimal;margin:.4em 0}
.ky-article-body li::marker{color:var(--ky-primary)}
.ky-article-body blockquote{margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--ky-primary);background:rgba(20,32,48,.55);border-radius:0 var(--ky-radius-sm) var(--ky-radius-sm) 0;color:var(--ky-text-dim);box-shadow:-8px 0 22px -14px rgba(35,224,200,.8)}
.ky-article-body blockquote p:last-child{margin-bottom:0}
.ky-article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;color:#A8F3E6}
.ky-article-body pre{background:#0A121C;border:1px solid var(--ky-line);border-radius:var(--ky-radius-btn);padding:16px 18px;overflow-x:auto;margin:1.5em 0}
.ky-article-body pre code{background:none;padding:0;color:#C9F5ED}
.ky-article-body img{border-radius:var(--ky-radius-btn);border:1px solid rgba(255,255,255,.08);margin:1.4em auto}
.ky-article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;border:1px solid var(--ky-line);border-radius:var(--ky-radius-btn);overflow:hidden}
.ky-article-body th{background:rgba(35,224,200,.1);color:var(--ky-text);text-align:left;padding:12px 14px;font-weight:600;font-size:14px}
.ky-article-body td{padding:12px 14px;border-top:1px solid var(--ky-line);color:var(--ky-text-dim)}
.ky-article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.025)}
.ky-article-body hr{border:none;border-top:1px solid var(--ky-line);margin:2em 0}

.ky-empty{max-width:760px;margin:0 auto;padding:56px 28px;text-align:center;border-radius:var(--ky-radius);background:var(--ky-panel);border:1px solid var(--ky-line);box-shadow:var(--ky-shadow)}
.ky-empty svg{margin:0 auto 16px}
.ky-empty-title{font-size:18px;font-weight:600;color:var(--ky-text)}
.ky-empty-text{font-size:14px;color:var(--ky-text-dim);margin:8px 0 20px}

/* ===== 标签 / 相关 ===== */
.ky-tagrow{max-width:760px;margin:48px auto 0;padding-top:28px;border-top:1px solid var(--ky-line);display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.ky-tagrow-label{font-size:13px;color:var(--ky-text-weak);margin-right:4px}
.ky-tag{padding:6px 14px;border-radius:999px;font-size:13px;color:var(--ky-text-dim);background:rgba(20,32,48,.6);border:1px solid var(--ky-line);transition:all .2s var(--ky-ease)}
.ky-tag:hover{color:var(--ky-primary);border-color:rgba(35,224,200,.5);background:rgba(35,224,200,.08)}
.ky-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ky-card{display:flex;flex-direction:column;height:100%;border-radius:var(--ky-radius);background:var(--ky-panel);border:1px solid var(--ky-line);overflow:hidden;box-shadow:var(--ky-shadow);transition:transform .22s var(--ky-ease),border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease)}
.ky-card:hover{transform:translateY(-4px);border-color:rgba(35,224,200,.35);box-shadow:var(--ky-shadow-glow)}
.ky-card-figure{position:relative;overflow:hidden;background:#0A121C}
.ky-card-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .22s var(--ky-ease)}
.ky-card:hover .ky-card-figure img{transform:scale(1.04)}
.ky-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.ky-card-title{font-size:17px;font-weight:600;line-height:1.45;color:var(--ky-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ky-ease)}
.ky-card:hover .ky-card-title{color:var(--ky-primary)}
.ky-card-text{font-size:14px;color:var(--ky-text-dim);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ky-card-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--ky-line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ky-text-weak);font-variant-numeric:tabular-nums}

/* ===== 行动条 ===== */
.ky-cta-bar{display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;padding:26px 30px;border-radius:var(--ky-radius);background:var(--ky-panel);border:1px solid var(--ky-line);box-shadow:var(--ky-shadow)}
.ky-cta-text{font-size:16px;font-weight:600;color:var(--ky-text)}
.ky-cta-actions{position:relative;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.ky-bubble{position:absolute;left:0;bottom:-38px;padding:7px 14px;border-radius:999px;font-size:13px;color:var(--ky-primary);background:rgba(9,16,26,.95);border:1px solid rgba(35,224,200,.4);opacity:0;transform:translateY(-6px);transition:all .22s var(--ky-ease);pointer-events:none;white-space:nowrap}
.ky-bubble.is-on{opacity:1;transform:translateY(0)}

/* ===== 上下页 ===== */
.ky-pager{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.ky-pager-item{padding:22px 24px;border-radius:var(--ky-radius);background:var(--ky-panel);border:1px solid var(--ky-line);transition:all .22s var(--ky-ease);display:block}
.ky-pager-item:hover{border-color:rgba(35,224,200,.35);transform:translateY(-3px);box-shadow:var(--ky-shadow-glow)}
.ky-pager-label{font-size:12px;letter-spacing:.16em;color:var(--ky-text-weak);display:block;margin-bottom:8px}
.ky-pager-title{font-size:16px;font-weight:600;color:var(--ky-text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ky-pager-item:hover .ky-pager-title{color:var(--ky-primary)}
.ky-pager-item.is-next{text-align:right}

/* ===== 返回顶部 ===== */
.ky-totop{position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(20,32,48,.85);border:1px solid rgba(35,224,200,.4);color:var(--ky-primary);cursor:pointer;opacity:0;pointer-events:none;transition:all .22s var(--ky-ease);z-index:1030;box-shadow:var(--ky-shadow)}
.ky-totop.is-on{opacity:1;pointer-events:auto}
.ky-totop:hover{background:rgba(35,224,200,.16);box-shadow:var(--ky-shadow-glow)}
.ky-totop:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}

/* ===== 页脚 ===== */
.ky-footer{position:relative;z-index:1;background:var(--ky-bg-alt);border-top:1px solid var(--ky-line);padding:72px 0 0;margin-top:var(--ky-section)}
.ky-footer-desc{font-size:14px;color:var(--ky-text-dim);line-height:1.7;margin-top:16px;max-width:280px}
.ky-footer-title{font-size:14px;font-weight:600;color:var(--ky-primary);margin-bottom:18px;letter-spacing:.02em}
.ky-footer-list li{margin-bottom:11px}
.ky-footer-list a{font-size:14px;color:var(--ky-text-dim);display:inline-block;transition:all .2s var(--ky-ease)}
.ky-footer-list a:hover{color:var(--ky-primary);transform:translateX(2px)}
.ky-sub{display:flex;gap:10px;margin-top:14px}
.ky-sub input{flex:1;min-width:0;height:36px;padding:0 12px;border-radius:var(--ky-radius-btn);background:rgba(6,12,20,.85);border:1px solid var(--ky-line-strong);color:var(--ky-text);font-size:14px;box-shadow:inset 0 1px 2px rgba(0,0,0,.6);transition:all .2s var(--ky-ease)}
.ky-sub input::placeholder{color:var(--ky-text-weak)}
.ky-sub input:focus{outline:none;border-color:var(--ky-primary);box-shadow:0 0 0 3px rgba(35,224,200,.18)}
.ky-sub-tip{font-size:13px;color:var(--ky-success);margin-top:10px;min-height:20px;border-left:3px solid transparent;padding-left:0;transition:all .2s var(--ky-ease)}
.ky-sub-tip.is-on{border-left-color:var(--ky-success);padding-left:10px;background:rgba(62,213,152,.08);border-radius:0 8px 8px 0;padding-top:6px;padding-bottom:6px}
.ky-sub-tip.is-err{color:var(--ky-danger);border-left-color:var(--ky-danger);background:rgba(255,107,107,.08)}
.ky-footer-bar{margin-top:56px;padding:22px 0;border-top:1px solid var(--ky-line);text-align:center}
.ky-footer-bar p{font-size:13px;color:var(--ky-text-weak)}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  :root{--ky-section:72px}
  .ky-cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .ky-article-hero{padding-top:112px}
  .ky-cover img{aspect-ratio:16/9}
  .ky-crumb .ky-crumb-current{max-width:180px}
}
@media (max-width:767.98px){
  :root{--ky-section:56px}
  .ky-cards{grid-template-columns:1fr}
  .ky-section-head{margin-bottom:30px}
  .ky-article-title{font-size:26px}
  .ky-pager{grid-template-columns:1fr}
  .ky-pager-item.is-next{text-align:left}
  .ky-cta-bar{padding:22px;flex-direction:column;align-items:flex-start}
  .ky-cta-actions{width:100%}
  .ky-cta-actions .ky-btn{flex:1}
  .ky-bubble{bottom:-40px}
  .ky-footer{padding-top:52px}
  .ky-footer-desc{max-width:none}
}
@media (max-width:575.98px){
  .ky-article-hero{padding-top:96px}
  .ky-article-body{font-size:16px}
  .ky-meta{gap:8px 14px;font-size:13px}
  .ky-totop{right:16px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  body::after{display:none}
}

/* roulang page: category1 */
:root{
  --bs-primary:#23E0C8;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9F2F6;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-link-color:#23E0C8;
  --bs-link-hover-color:#7FF0E0;
  --bs-border-radius:14px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;

  --ky-bg:#070C14;
  --ky-bg-alt:#0B1421;
  --ky-panel:rgba(20,32,48,.62);
  --ky-primary:#23E0C8;
  --ky-accent:#FFB347;
  --ky-text:#E9F2F6;
  --ky-text-2:#93A6B8;
  --ky-text-3:#64758A;
  --ky-line:rgba(255,255,255,.09);
  --ky-radius:18px;
  --ky-radius-sm:14px;
  --ky-radius-btn:12px;
  --ky-shadow:0 10px 30px -12px rgba(0,0,0,.7);
  --ky-glow:0 0 0 1px rgba(35,224,200,.35),0 8px 28px -8px rgba(35,224,200,.45);
  --ky-ease:cubic-bezier(.2,.7,.3,1);
  --ky-gap-d:96px;
  --ky-gap-t:72px;
  --ky-gap-m:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body.ky-page{
  margin:0;
  background:var(--ky-bg);
  color:var(--ky-text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.ky-page::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:40px 40px;
}
body.ky-page::after{
  content:"";position:fixed;left:50%;top:-340px;width:1120px;height:720px;transform:translateX(-50%);
  pointer-events:none;z-index:0;
  background:radial-gradient(closest-side,rgba(35,224,200,.08),transparent 72%);
}
body.ky-page .container{max-width:1200px;padding-left:20px;padding-right:20px;position:relative;z-index:1}
@media (min-width:1440px){body.ky-page .container{max-width:1320px}}
img{max-width:100%;display:block}
a{text-decoration:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ky-text)}
ul{list-style:none}
button{font-family:inherit}
::selection{background:rgba(35,224,200,.28);color:#fff}

/* ---------- 顶部导航 ---------- */
.ky-header{
  position:sticky;top:0;z-index:1030;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ky-ease),border-color .24s var(--ky-ease),backdrop-filter .24s var(--ky-ease);
}
.ky-header.is-scrolled{background:rgba(7,12,20,.72);backdrop-filter:blur(14px);border-bottom-color:var(--ky-line)}
.ky-nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.ky-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ky-text)}
.ky-logo-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:rgba(35,224,200,.10);border:1px solid rgba(35,224,200,.28);transition:box-shadow .22s var(--ky-ease)}
.ky-logo:hover .ky-logo-mark{box-shadow:0 0 0 1px rgba(35,224,200,.45),0 6px 20px -6px rgba(35,224,200,.5)}
.ky-logo-text{font-size:18px;font-weight:700;letter-spacing:.01em}
.ky-nav{display:flex;align-items:center;gap:28px}
.ky-nav-link{position:relative;font-size:15px;color:var(--ky-text-2);padding:6px 2px;transition:color .18s var(--ky-ease)}
.ky-nav-link::after{content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;background:var(--ky-primary);box-shadow:0 0 10px rgba(35,224,200,.85);transition:width .18s var(--ky-ease)}
.ky-nav-link:hover{color:var(--ky-primary)}
.ky-nav-link:hover::after{width:100%}
.ky-nav-link.is-active{color:var(--ky-primary)}
.ky-nav-link.is-active::after{width:100%}
.ky-nav-link:focus-visible{outline:2px solid var(--ky-primary);outline-offset:3px;border-radius:6px}
.ky-toggle{width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border:1px solid var(--ky-line);background:var(--ky-panel);border-radius:12px;cursor:pointer;transition:border-color .2s var(--ky-ease)}
.ky-toggle span{display:block;width:20px;height:2px;background:var(--ky-text);border-radius:2px}
.ky-toggle:hover{border-color:rgba(35,224,200,.4)}
.ky-drawer{background:var(--ky-bg-alt);color:var(--ky-text);width:min(86vw,340px);border-left:1px solid var(--ky-line)}
.ky-drawer .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--ky-line)}
.ky-drawer .offcanvas-body{padding:22px}
.ky-drawer-close{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--ky-line);background:transparent;color:var(--ky-text);font-size:20px;line-height:1;cursor:pointer;transition:border-color .2s var(--ky-ease),color .2s var(--ky-ease)}
.ky-drawer-close:hover{border-color:rgba(35,224,200,.45);color:var(--ky-primary)}
.ky-drawer-nav{display:flex;flex-direction:column;gap:6px}
.ky-drawer-nav a{padding:14px 14px;border-radius:12px;font-size:16px;color:var(--ky-text-2);border:1px solid transparent;transition:background .2s var(--ky-ease),color .2s var(--ky-ease),border-color .2s var(--ky-ease)}
.ky-drawer-nav a:hover{background:rgba(35,224,200,.08);color:var(--ky-text)}
.ky-drawer-nav a.is-active{color:var(--ky-primary);border-color:rgba(35,224,200,.3);background:rgba(35,224,200,.06)}

/* ---------- 按钮 ---------- */
.ky-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--ky-radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ky-ease),box-shadow .2s var(--ky-ease),background .2s var(--ky-ease),border-color .2s var(--ky-ease),color .2s var(--ky-ease),filter .2s var(--ky-ease)}
.ky-btn-primary{background:var(--ky-primary);color:#06110F;box-shadow:0 10px 26px -12px rgba(35,224,200,.75)}
.ky-btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 14px 34px -12px rgba(35,224,200,.9)}
.ky-btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(35,224,200,.35);color:var(--ky-primary)}
.ky-btn-ghost:hover{border-color:rgba(35,224,200,.7);background:rgba(35,224,200,.08);transform:translateY(-1px)}
.ky-btn-sm{height:36px;padding:0 16px;font-size:14px}
.ky-btn:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}
.ky-btn:disabled,.ky-btn.is-disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.ky-badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;background:rgba(35,224,200,.12);color:var(--ky-primary);white-space:nowrap}
.ky-badge-time{background:rgba(255,179,71,.14);color:var(--ky-accent)}
.ky-eyebrow{display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--ky-primary);margin-bottom:12px}

/* ---------- Hero ---------- */
.ky-hero{position:relative;overflow:hidden;padding:56px 0 60px;min-height:340px;display:flex;align-items:center}
.ky-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;z-index:0}
.ky-hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(7,12,20,.78) 0%,rgba(7,12,20,.9) 62%,var(--ky-bg) 100%)}
.ky-hero .container{position:relative;z-index:2}
.ky-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ky-text-3);margin-bottom:18px;white-space:nowrap;overflow-x:auto;padding-bottom:2px}
.ky-crumb a{color:var(--ky-text-2);transition:color .2s var(--ky-ease)}
.ky-crumb a:hover{color:var(--ky-primary)}
.ky-crumb .ky-crumb-cur{color:rgba(35,224,200,.6)}
.ky-hero h1{font-size:clamp(26px,4vw,44px);line-height:1.16;letter-spacing:-.01em;max-width:820px;font-weight:700}
.ky-hero-sub{margin:16px 0 0;font-size:17px;color:var(--ky-text-2);max-width:760px}
.ky-checks{display:flex;flex-wrap:wrap;gap:12px 26px;padding:0;margin:26px 0 0}
.ky-checks li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ky-text-2)}
.ky-checks svg{flex:0 0 auto}

/* ---------- 板块 ---------- */
.ky-main{padding:var(--ky-gap-d) 0 0}
.ky-section{margin-bottom:var(--ky-gap-d);scroll-margin-top:96px}
.ky-section:last-child{margin-bottom:0}
.ky-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.ky-sec-head h2{font-size:clamp(22px,3vw,32px);line-height:1.25}
.ky-sec-head p{margin:8px 0 0;font-size:14px;color:var(--ky-text-2);max-width:560px}
.ky-sec-more{font-size:14px;color:var(--ky-primary);display:inline-flex;align-items:center;gap:6px;transition:gap .2s var(--ky-ease)}
.ky-sec-more:hover{gap:10px}

/* ---------- 卡片 ---------- */
.ky-card{position:relative;background:var(--ky-panel);border:1px solid var(--ky-line);border-radius:var(--ky-radius);padding:24px;backdrop-filter:blur(10px);box-shadow:var(--ky-shadow);overflow:hidden;transition:transform .22s var(--ky-ease),border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease)}
.ky-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent)}
.ky-card:hover{transform:translateY(-4px);border-color:rgba(35,224,200,.35);box-shadow:var(--ky-glow)}
.ky-card h3{font-size:clamp(17px,1.6vw,20px);line-height:1.4;margin-bottom:10px}
.ky-card h3 a{color:inherit;transition:color .2s var(--ky-ease)}
.ky-card:hover h3 a{color:var(--ky-primary)}
.ky-card p{margin:0;font-size:14.5px;color:var(--ky-text-2);line-height:1.8}
.ky-thumb{position:relative;border-radius:var(--ky-radius-sm);overflow:hidden;aspect-ratio:16/10;border:1px solid rgba(255,255,255,.08);background:#0d1826;margin-bottom:18px}
.ky-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ky-ease)}
.ky-card:hover .ky-thumb img{transform:scale(1.04)}
.ky-thumb-wide{aspect-ratio:21/9}
.ky-card-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--ky-text-3);font-variant-numeric:tabular-nums}
.ky-mini{display:flex;gap:14px;align-items:flex-start}
.ky-mini-num{flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--ky-accent);background:rgba(255,179,71,.12);border:1px solid rgba(255,179,71,.24);font-variant-numeric:tabular-nums}
.ky-mini h3{font-size:16px;margin-bottom:6px}
.ky-mini p{font-size:14px;color:var(--ky-text-2);margin:0}

/* ---------- 侧栏目录 ---------- */
.ky-toc{position:sticky;top:96px;background:var(--ky-panel);border:1px solid var(--ky-line);border-radius:var(--ky-radius);padding:20px 16px;backdrop-filter:blur(10px);box-shadow:var(--ky-shadow)}
.ky-toc-title{font-size:12px;letter-spacing:.16em;color:var(--ky-primary);margin:0 0 14px 12px}
.ky-toc nav{display:flex;flex-direction:column;gap:2px}
.ky-toc a{display:flex;align-items:baseline;gap:10px;padding:10px 12px;border-radius:12px;font-size:15px;color:var(--ky-text-2);transition:background .2s var(--ky-ease),color .2s var(--ky-ease),transform .2s var(--ky-ease)}
.ky-toc a:hover,.ky-toc a.is-active{background:rgba(35,224,200,.08);color:var(--ky-text);transform:translateX(2px)}
.ky-toc-num{font-size:12px;color:var(--ky-accent);font-variant-numeric:tabular-nums}
.ky-toc-cta{margin-top:18px}

/* ---------- 流程 ---------- */
.ky-step{position:relative;padding:0 0 30px 58px}
.ky-step:last-child{padding-bottom:0}
.ky-step::before{content:"";position:absolute;left:20px;top:44px;bottom:0;width:1px;background:var(--ky-line)}
.ky-step:last-child::before{display:none}
.ky-step-num{position:absolute;left:0;top:0;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:14px;color:var(--ky-primary);background:rgba(35,224,200,.1);border:1px solid rgba(35,224,200,.28);font-variant-numeric:tabular-nums}
.ky-step h3{font-size:17px;margin-bottom:6px}
.ky-step p{margin:0;font-size:14.5px;color:var(--ky-text-2);max-width:640px}

/* ---------- 列表 ---------- */
.ky-list{padding:0;margin:0}
.ky-list li{position:relative;padding-left:22px;margin-bottom:10px;font-size:14.5px;color:var(--ky-text-2)}
.ky-list li:last-child{margin-bottom:0}
.ky-list li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:2px;background:var(--ky-primary);box-shadow:0 0 8px rgba(35,224,200,.7)}
.ky-list-accent li::before{background:var(--ky-accent);box-shadow:0 0 8px rgba(255,179,71,.6)}

/* ---------- 对比 ---------- */
.ky-compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.ky-compare-col{background:var(--ky-panel);border:1px solid var(--ky-line);border-radius:var(--ky-radius);padding:26px;backdrop-filter:blur(10px);box-shadow:var(--ky-shadow);transition:border-color .22s var(--ky-ease),transform .22s var(--ky-ease)}
.ky-compare-col:hover{border-color:rgba(35,224,200,.32);transform:translateY(-4px)}
.ky-compare-col.is-mark{border-color:rgba(35,224,200,.35)}
.ky-compare-col h3{font-size:19px;margin-bottom:8px}
.ky-compare-col .ky-compare-desc{font-size:14px;color:var(--ky-text-2);margin-bottom:18px}
.ky-compare-row{display:grid;grid-template-columns:86px 1fr;gap:12px;padding:12px 0;border-top:1px solid var(--ky-line);font-size:14px}
.ky-compare-row span:first-child{color:var(--ky-text-3)}
.ky-compare-row span:last-child{color:var(--ky-text-2)}

/* ---------- 表单 ---------- */
.ky-form-wrap{background:var(--ky-panel);border:1px solid var(--ky-line);border-radius:var(--ky-radius);padding:30px;backdrop-filter:blur(10px);box-shadow:var(--ky-shadow)}
.ky-field{margin-bottom:16px}
.ky-field label{display:block;font-size:13px;color:var(--ky-text-2);margin-bottom:8px}
.ky-input,.ky-textarea{width:100%;background:rgba(6,11,18,.72);border:1px solid var(--ky-line);border-radius:12px;color:var(--ky-text);padding:12px 14px;font-size:15px;font-family:inherit;box-shadow:inset 0 1px 0 rgba(255,255,255,.04);transition:border-color .2s var(--ky-ease),box-shadow .2s var(--ky-ease)}
.ky-textarea{min-height:110px;resize:vertical;line-height:1.7}
.ky-input::placeholder,.ky-textarea::placeholder{color:var(--ky-text-3)}
.ky-input:focus,.ky-textarea:focus{outline:none;border-color:rgba(35,224,200,.8);box-shadow:0 0 0 3px rgba(35,224,200,.16)}
.ky-alert{display:none;margin-top:16px;padding:12px 16px;border-radius:12px;border-left:3px solid var(--ky-primary);background:rgba(35,224,200,.08);font-size:14px;color:var(--ky-text)}
.ky-alert.is-error{border-left-color:#FF6B6B;background:rgba(255,107,107,.08)}
.ky-alert.is-show{display:block}
.ky-hint{font-size:13px;color:var(--ky-text-3);margin:14px 0 0}

/* ---------- 页脚 ---------- */
.ky-footer{margin-top:var(--ky-gap-d);border-top:1px solid var(--ky-line);background:var(--ky-bg-alt);padding:72px 0 28px;position:relative;z-index:1}
.ky-footer .ky-logo{margin-bottom:14px}
.ky-footer-desc{font-size:14px;color:var(--ky-text-2);margin:0 0 0;max-width:280px}
.ky-footer-title{font-size:14px;color:var(--ky-primary);margin-bottom:16px;font-weight:600}
.ky-footer-list{padding:0;margin:0}
.ky-footer-list li{margin-bottom:10px}
.ky-footer-list a{display:inline-block;font-size:14px;color:var(--ky-text-2);transition:color .2s var(--ky-ease),transform .2s var(--ky-ease)}
.ky-footer-list a:hover{color:var(--ky-primary);transform:translateX(2px)}
.ky-sub{display:flex;gap:10px;margin-top:6px}
.ky-sub input{flex:1;min-width:0;background:rgba(6,11,18,.72);border:1px solid var(--ky-line);border-radius:12px;color:var(--ky-text);padding:10px 12px;font-size:14px;font-family:inherit;transition:border-color .2s var(--ky-ease),box-shadow .2s var(--ky-ease)}
.ky-sub input:focus{outline:none;border-color:rgba(35,224,200,.8);box-shadow:0 0 0 3px rgba(35,224,200,.16)}
.ky-sub-tip{font-size:13px;color:var(--ky-primary);margin:10px 0 0;min-height:18px}
.ky-footer-bar{margin-top:48px;padding-top:20px;border-top:1px solid var(--ky-line);text-align:center;font-size:13px;color:var(--ky-text-3)}
.ky-footer-bar p{margin:0}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .ky-hero h1{max-width:720px}
}
@media (max-width:991.98px){
  :root{--ky-gap-d:72px}
  .ky-main{padding-top:72px}
  .ky-toc{position:static;margin-bottom:32px}
  .ky-hero{padding:44px 0 48px;min-height:300px}
  .ky-compare{grid-template-columns:1fr}
  .ky-sec-head{margin-bottom:22px}
}
@media (max-width:767.98px){
  :root{--ky-gap-d:56px}
  .ky-main{padding-top:56px}
  body.ky-page{font-size:15.5px;line-height:1.8}
  .ky-hero{padding:36px 0 42px}
  .ky-hero-sub{font-size:15.5px}
  .ky-checks{gap:10px 18px}
  .ky-card{padding:20px}
  .ky-form-wrap{padding:22px}
  .ky-footer{padding:56px 0 24px}
  .ky-sub{flex-direction:column}
  .ky-sub .ky-btn{width:100%}
  .ky-compare-row{grid-template-columns:72px 1fr}
}
@media (max-width:575.98px){
  .ky-hero h1{font-size:26px}
  .ky-btn{width:100%}
  .ky-btn.ky-btn-inline{width:auto}
  .ky-mini{flex-direction:column;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ky-bg:#070C14;
  --ky-bg-alt:#0B1421;
  --ky-panel:rgba(20,32,48,.62);
  --ky-panel-soft:rgba(16,26,40,.78);
  --ky-primary:#23E0C8;
  --ky-primary-soft:rgba(35,224,200,.12);
  --ky-primary-line:rgba(35,224,200,.35);
  --ky-accent:#FFB347;
  --ky-accent-soft:rgba(255,179,71,.14);
  --ky-text:#E9F2F6;
  --ky-text-2:#93A6B8;
  --ky-text-3:#64758A;
  --ky-line:rgba(255,255,255,.09);
  --ky-line-2:rgba(255,255,255,.16);
  --ky-r-lg:18px;
  --ky-r-md:14px;
  --ky-r-sm:12px;
  --ky-shadow:0 10px 30px -12px rgba(0,0,0,.7);
  --ky-shadow-glow:0 0 0 1px rgba(35,224,200,.35),0 8px 28px -8px rgba(35,224,200,.45);
  --ky-ease:cubic-bezier(.2,.7,.3,1);
  --ky-sec:96px;
  --ky-container:1200px;

  --bs-primary:#23E0C8;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9F2F6;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-link-color:#23E0C8;
  --bs-link-hover-color:#5CEBD8;
  --bs-border-radius:14px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ky-text);
  background-color:var(--ky-bg);
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:40px 40px,40px 40px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(760px 420px at 82% -10%,rgba(35,224,200,.10),transparent 64%);
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(35,224,200,.3);color:#fff}

.container{max-width:var(--ky-container);padding-left:20px;padding-right:20px;position:relative;z-index:1}
@media (min-width:1440px){.container{max-width:1320px}}

section[id],div[id]{scroll-margin-top:88px}

/* 顶部导航 */
.ky-header{position:fixed;top:0;left:0;right:0;z-index:1030;border-bottom:1px solid transparent;transition:background .24s var(--ky-ease),border-color .24s var(--ky-ease),backdrop-filter .24s var(--ky-ease)}
.ky-header.is-scrolled{background:rgba(7,12,20,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--ky-line)}
.ky-header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.ky-logo{display:inline-flex;align-items:center;gap:10px;transition:opacity .2s var(--ky-ease)}
.ky-logo-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:rgba(35,224,200,.1);border:1px solid rgba(35,224,200,.3);box-shadow:0 0 18px -8px rgba(35,224,200,.9)}
.ky-logo-text{font-size:18px;font-weight:700;color:var(--ky-text);letter-spacing:.01em}
.ky-logo:hover .ky-logo-text{color:var(--ky-primary)}
.ky-nav{display:flex;align-items:center;gap:28px}
.ky-nav-link{position:relative;font-size:15px;color:var(--ky-text-2);padding:6px 0;transition:color .2s var(--ky-ease)}
.ky-nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;background:var(--ky-primary);box-shadow:0 0 10px rgba(35,224,200,.9);transition:width .18s var(--ky-ease)}
.ky-nav-link:hover{color:var(--ky-primary)}
.ky-nav-link:hover::after{width:100%}
.ky-nav-link.is-active{color:var(--ky-primary)}
.ky-nav-link.is-active::after{width:100%}
.ky-header-actions{display:flex;align-items:center;gap:12px}
.ky-burger{width:44px;height:44px;border-radius:12px;border:1px solid var(--ky-line);background:rgba(255,255,255,.04);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;cursor:pointer;transition:border-color .2s var(--ky-ease),background .2s var(--ky-ease)}
.ky-burger:hover{border-color:var(--ky-primary-line);background:rgba(35,224,200,.08)}
.ky-burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ky-text)}

/* 移动端抽屉 */
.ky-drawer{background:rgba(11,20,33,.98)!important;color:var(--ky-text);width:min(86vw,340px);border-left:1px solid var(--ky-line)!important}
.ky-drawer .offcanvas-header{border-bottom:1px solid var(--ky-line);padding:16px 20px}
.ky-drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--ky-line);background:transparent;color:var(--ky-text);font-size:22px;line-height:1;display:grid;place-items:center;cursor:pointer;transition:border-color .2s var(--ky-ease),color .2s var(--ky-ease)}
.ky-drawer-close:hover{border-color:var(--ky-primary-line);color:var(--ky-primary)}
.ky-drawer-body{padding:18px 20px 28px;display:grid;gap:10px;align-content:start}
.ky-drawer-link{display:block;padding:14px 16px;border-radius:12px;color:var(--ky-text-2);font-size:16px;border:1px solid transparent;transition:all .2s var(--ky-ease)}
.ky-drawer-link:hover{color:var(--ky-primary);background:rgba(255,255,255,.04)}
.ky-drawer-link.is-active{color:var(--ky-primary);border-color:var(--ky-primary-line);background:rgba(35,224,200,.08)}

/* 按钮 */
.ky-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:all .22s var(--ky-ease)}
.ky-btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px}
.ky-btn-primary{background:var(--ky-primary);color:#06110F;box-shadow:0 8px 24px -10px rgba(35,224,200,.75)}
.ky-btn-primary:hover{background:#3AE7D2;color:#06110F;transform:translateY(-1px);box-shadow:0 12px 32px -8px rgba(35,224,200,.9)}
.ky-btn-glass{background:rgba(255,255,255,.05);border-color:var(--ky-primary-line);color:var(--ky-primary)}
.ky-btn-glass:hover{border-color:rgba(35,224,200,.7);background:rgba(35,224,200,.1);color:var(--ky-primary);transform:translateY(-1px)}
.ky-btn:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}
.ky-btn:disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed}
.ky-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ky-text-2);transition:color .2s var(--ky-ease)}
.ky-more::after{content:"→";transition:transform .2s var(--ky-ease)}
.ky-more:hover{color:var(--ky-primary)}
.ky-more:hover::after{transform:translateX(3px)}

/* 首屏 */
.ky-hero{position:relative;display:flex;align-items:flex-end;min-height:380px;padding:132px 0 56px;overflow:hidden;border-bottom:1px solid var(--ky-line)}
.ky-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.ky-hero-veil{position:absolute;inset:0;z-index:1;background:
  linear-gradient(180deg,rgba(7,12,20,.88) 0%,rgba(7,12,20,.74) 40%,rgba(7,12,20,.97) 100%),
  radial-gradient(720px 320px at 16% 24%,rgba(35,224,200,.16),transparent 70%)}
.ky-hero-inner{position:relative;z-index:2;width:100%}
.ky-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ky-text-3);margin-bottom:18px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.ky-crumb::-webkit-scrollbar{display:none}
.ky-crumb a{transition:color .2s var(--ky-ease)}
.ky-crumb a:hover{color:var(--ky-primary)}
.ky-crumb .is-current{color:rgba(35,224,200,.6)}
.ky-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.18em;color:var(--ky-primary);text-transform:uppercase;margin-bottom:14px}
.ky-eyebrow::before{content:"";width:22px;height:1px;background:var(--ky-primary);box-shadow:0 0 8px rgba(35,224,200,.9)}
.ky-hero h1{font-size:clamp(28px,4.6vw,50px);line-height:1.16;margin-bottom:16px;max-width:18em}
.ky-hero-sub{font-size:16px;color:var(--ky-text-2);max-width:620px;margin-bottom:24px}
.ky-check-row{display:flex;flex-wrap:wrap;gap:10px}
.ky-check-row li{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--ky-line);background:rgba(255,255,255,.04);font-size:13px;color:var(--ky-text-2)}
.ky-check-row li::before{content:"✓";color:var(--ky-primary);font-weight:700}

/* 区块 */
.ky-sec{padding:var(--ky-sec) 0}
.ky-sec-alt{background:var(--ky-bg-alt);border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line)}
.ky-sec-head{margin-bottom:40px;max-width:760px}
.ky-sec-label{display:block;font-size:12px;letter-spacing:.18em;color:var(--ky-primary);margin-bottom:10px}
.ky-sec-title{font-size:clamp(22px,3vw,34px);line-height:1.25;margin-bottom:12px}
.ky-sec-sub{font-size:15px;color:var(--ky-text-2)}

/* 目录条 */
.ky-toc-wrap{padding:22px 0;border-bottom:1px solid var(--ky-line);background:rgba(11,20,33,.6)}
.ky-toc{display:flex;gap:12px;overflow-x:auto;padding:4px 0;scrollbar-width:thin}
.ky-toc::-webkit-scrollbar{height:6px}
.ky-toc::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:999px}
.ky-toc-item{flex:0 0 auto;display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:999px;border:1px solid var(--ky-line);background:var(--ky-panel);color:var(--ky-text-2);font-size:14px;transition:all .22s var(--ky-ease)}
.ky-toc-item:hover{border-color:var(--ky-primary-line);color:var(--ky-text);transform:translateY(-2px)}
.ky-toc-num{font-size:12px;color:var(--ky-accent);font-variant-numeric:tabular-nums}

/* 数据总览 */
.ky-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.ky-stat{padding:26px 24px;border-radius:var(--ky-r-lg);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,0) 46%),var(--ky-panel);border:1px solid var(--ky-line);box-shadow:var(--ky-shadow);transition:transform .22s var(--ky-ease),box-shadow .22s var(--ky-ease)}
.ky-stat:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-glow)}
.ky-stat-num{font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--ky-primary);line-height:1.2;font-variant-numeric:tabular-nums}
.ky-stat-label{font-size:14px;color:var(--ky-text-2);margin-top:6px}
.ky-lead{margin-top:28px;font-size:15px;color:var(--ky-text-2);max-width:760px}

/* 资源卡网格 */
.ky-res-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.ky-res-card{position:relative;padding:28px;border-radius:var(--ky-r-lg);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,0) 42%),var(--ky-panel);border:1px solid var(--ky-line);box-shadow:var(--ky-shadow);overflow:hidden;transition:transform .22s var(--ky-ease),border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease)}
.ky-res-card::before{content:"";position:absolute;top:0;left:0;width:58px;height:3px;background:linear-gradient(90deg,var(--ky-primary),rgba(35,224,200,0))}
.ky-res-card:hover{transform:translateY(-4px);border-color:var(--ky-primary-line);box-shadow:var(--ky-shadow-glow)}
.ky-res-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--ky-primary-soft);color:var(--ky-primary);margin-bottom:16px}
.ky-res-card h3{font-size:clamp(18px,2vw,22px);line-height:1.35;margin-bottom:10px}
.ky-res-desc{font-size:14px;color:var(--ky-text-2);line-height:1.8;margin-bottom:18px}
.ky-res-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.ky-badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12px;background:var(--ky-primary-soft);color:var(--ky-primary)}
.ky-badge-time{background:var(--ky-accent-soft);color:var(--ky-accent);font-variant-numeric:tabular-nums}

/* 面板与节奏 */
.ky-panel{border-radius:var(--ky-r-lg);background:var(--ky-panel);border:1px solid var(--ky-line);padding:28px;box-shadow:var(--ky-shadow);height:100%}
.ky-panel h3{font-size:clamp(18px,2vw,22px);margin-bottom:8px}
.ky-panel-note{font-size:14px;color:var(--ky-text-3);margin-bottom:20px}
.ky-cal-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--ky-line)}
.ky-cal-item:last-child{border-bottom:0;padding-bottom:0}
.ky-cal-date{flex:0 0 54px;font-size:13px;color:var(--ky-accent);font-variant-numeric:tabular-nums;padding-top:3px}
.ky-cal-text{font-size:14px;color:var(--ky-text-2);line-height:1.75}
.ky-cal-text strong{color:var(--ky-text);font-weight:600}
.ky-bar-row{margin-bottom:20px}
.ky-bar-row:last-child{margin-bottom:0}
.ky-bar-top{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--ky-text-2);margin-bottom:8px}
.ky-bar-top span:last-child{color:var(--ky-primary);font-variant-numeric:tabular-nums}
.ky-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden}
.ky-bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--ky-primary),#4CEBD6);box-shadow:0 0 14px rgba(35,224,200,.5)}

/* FAQ */
.ky-faq{border:0}
.ky-faq-item{background:transparent;border:0;margin-bottom:12px}
.ky-faq-item:last-child{margin-bottom:0}
.ky-faq-btn{width:100%;background:var(--ky-panel);color:var(--ky-text);border:1px solid var(--ky-line);border-radius:var(--ky-r-md);font-size:16px;font-weight:600;padding:18px 20px;line-height:1.6;box-shadow:none;transition:all .22s var(--ky-ease)}
.ky-faq-btn:not(.collapsed){color:var(--ky-primary);background:rgba(35,224,200,.07);border-color:var(--ky-primary-line);box-shadow:0 8px 26px -16px rgba(35,224,200,.9)}
.ky-faq-btn:focus{box-shadow:none;outline:2px solid var(--ky-primary);outline-offset:2px}
.ky-faq-btn::after{content:"";flex:0 0 16px;width:16px;height:16px;border:0;background-image:none;
  background:
    linear-gradient(currentColor,currentColor) center/16px 2px no-repeat,
    linear-gradient(currentColor,currentColor) center/2px 16px no-repeat;
  transition:transform .24s var(--ky-ease)}
.ky-faq-btn:not(.collapsed)::after{transform:rotate(45deg)}
.ky-faq-body{padding:18px 22px;font-size:15px;color:var(--ky-text-2);line-height:1.9;background:rgba(255,255,255,.02);border-radius:0 var(--ky-r-md) var(--ky-r-md) 0;border-left:3px solid var(--ky-primary);box-shadow:-6px 0 20px -12px rgba(35,224,200,.75);margin-top:8px}

/* 相关入口 */
.ky-link-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.ky-link-card{display:flex;align-items:center;gap:18px;padding:22px;border-radius:var(--ky-r-lg);border:1px solid var(--ky-line);background:var(--ky-panel);box-shadow:var(--ky-shadow);transition:transform .22s var(--ky-ease),border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease)}
.ky-link-card:hover{transform:translateY(-4px);border-color:var(--ky-primary-line);box-shadow:var(--ky-shadow-glow)}
.ky-link-thumb{flex:0 0 96px;width:96px;aspect-ratio:16/10;border-radius:var(--ky-r-sm);overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.ky-link-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ky-ease)}
.ky-link-card:hover .ky-link-thumb img{transform:scale(1.04)}
.ky-link-card h3{font-size:17px;margin-bottom:6px;line-height:1.45}
.ky-link-card p{font-size:13px;color:var(--ky-text-3);line-height:1.7}

/* CTA */
.ky-cta{position:relative;overflow:hidden;border-radius:24px;padding:48px;border:1px solid var(--ky-line-2);background:linear-gradient(120deg,rgba(35,224,200,.14),rgba(255,179,71,.08))}
.ky-cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22;z-index:0}
.ky-cta-veil{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(7,12,20,.94),rgba(7,12,20,.72))}
.ky-cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.ky-cta h2{font-size:clamp(20px,2.6vw,30px);margin-bottom:10px;line-height:1.3}
.ky-cta p{font-size:15px;color:var(--ky-text-2);max-width:560px}
.ky-cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.ky-footer{margin-top:var(--ky-sec);border-top:1px solid var(--ky-line);background:var(--ky-bg-alt);padding:64px 0 28px;position:relative;z-index:1}
.ky-footer-title{font-size:14px;font-weight:600;color:var(--ky-primary);margin-bottom:16px}
.ky-footer-list{display:grid;gap:10px}
.ky-footer-list a{display:inline-block;font-size:14px;color:var(--ky-text-2);transition:color .2s var(--ky-ease),transform .2s var(--ky-ease)}
.ky-footer-list a:hover{color:var(--ky-primary);transform:translateX(2px)}
.ky-footer-desc{font-size:14px;color:var(--ky-text-3);line-height:1.75;margin-top:16px}
.ky-sub{display:flex;gap:8px;margin-top:14px}
.ky-sub input{flex:1;min-width:0;padding:10px 12px;border-radius:var(--ky-r-sm);border:1px solid var(--ky-line);background:rgba(255,255,255,.04);color:var(--ky-text);font-size:14px;box-shadow:inset 0 1px 0 rgba(0,0,0,.35);transition:border-color .2s var(--ky-ease),box-shadow .2s var(--ky-ease)}
.ky-sub input::placeholder{color:var(--ky-text-3)}
.ky-sub input:focus{outline:none;border-color:var(--ky-primary);box-shadow:0 0 0 3px rgba(35,224,200,.18)}
.ky-sub-tip{font-size:13px;color:var(--ky-primary);margin-top:8px;min-height:18px}
.ky-footer-bar{margin-top:48px;padding-top:22px;border-top:1px solid var(--ky-line);text-align:center;font-size:13px;color:var(--ky-text-3)}
.ky-footer-bar p{margin:0}

/* 响应式 */
@media (max-width:1199.98px){
  .ky-res-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  :root{--ky-sec:72px}
  .ky-hero{min-height:400px;padding:118px 0 48px}
  .ky-stats{grid-template-columns:repeat(2,1fr)}
  .ky-link-grid{grid-template-columns:1fr}
  .ky-cta{padding:36px}
}
@media (max-width:767.98px){
  .ky-res-grid{grid-template-columns:1fr}
  .ky-res-card{padding:22px}
  .ky-panel{padding:22px}
  .ky-cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  :root{--ky-sec:56px}
  .ky-hero{min-height:440px;padding:110px 0 44px}
  .ky-hero-sub{font-size:15px}
  .ky-check-row li{font-size:12px;padding:7px 12px}
  .ky-stats{grid-template-columns:1fr}
  .ky-cta{padding:28px 22px;border-radius:20px}
  .ky-btn{width:100%}
  .ky-cta-actions{width:100%;flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .ky-res-card:hover,.ky-stat:hover,.ky-link-card:hover,.ky-btn:hover{transform:none}
}