/* BiLu visual layer. Original component layout and responsive grids remain intact. */
:root{--color-bg:#080c10;--color-surface:#11191d;--color-surface-2:#172126;--color-surface-3:#202c30;--color-gold:#ffd447;--color-gold-hover:#ffe780;--color-text:#f3f3e9;--color-muted:#929f9f;--color-line:#293b3e;--color-border:#293b3e;--bilu-cyan:#39e6df}
body{background-color:var(--color-bg);background-image:radial-gradient(ellipse at 85% 5%,#ffd4470b,transparent 35%),radial-gradient(ellipse at 10% 40%,#39e6df08,transparent 40%)}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background-image:linear-gradient(#39e6df03 1px,transparent 1px),linear-gradient(90deg,#39e6df03 1px,transparent 1px);background-size:60px 60px;mask-image:linear-gradient(#0008,transparent 65%)}
.lk-zh,.lk-en{color:#ffd447;text-shadow:0 0 24px #ffd44725}.lk-en{font-style:italic}.mark{filter:drop-shadow(0 0 6px #ffd44740)}
.btn-primary,.btn-gold{background:linear-gradient(120deg,#ffe47c,#f4ba21);color:#0b1114;box-shadow:0 0 22px #ffd44716}
.btn-primary:hover,.btn-gold:hover{box-shadow:0 0 30px #ffd44735}
.hero .stage{background:radial-gradient(ellipse at center,#ffd4470c,transparent 65%)}
.hero .stage::before{content:"";width:65%;aspect-ratio:1;border:1px solid #ffd4472e;border-radius:50%;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);box-shadow:0 0 50px #ffd4470a,inset 0 0 30px #39e6df05;pointer-events:none}
.hero .stage::after{content:"";width:80%;aspect-ratio:1;border:1px dashed #39e6df19;border-radius:50%;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);animation:bilu-orbit 75s linear infinite;pointer-events:none}
@keyframes bilu-orbit{to{transform:translate(-50%,-50%) rotate(360deg)}}
.feedcard,.stepsbox,.nowbox,.teaser-card,.dk-panel{border-color:#314044;background-image:linear-gradient(145deg,#ffd44704,transparent 45%,#39e6df03)}
.jz .jz-float> :not(.bilu-character){opacity:0!important}
.jz .bilu-character{filter:drop-shadow(0 0 8px #ffd44728)}
.bilu-abilities{margin:var(--space-5) 0 0;border:1px solid #39e6df26;border-radius:var(--radius-card,6px);overflow:hidden;background:#fff;box-shadow:0 0 35px #39e6df07}
.bilu-abilities img{display:block;width:100%;height:auto}
.bilu-brand-link{margin-inline:12px;color:var(--color-muted)}
.bilu-ca-chip{display:inline-flex;border:1px solid var(--color-line);border-radius:4px;padding:6px 9px;font-size:11px;color:var(--color-muted);white-space:nowrap}
.bilu-data-source{display:block;margin:8px 0;font-size:10px;line-height:1.5;color:var(--color-muted);letter-spacing:.02em}
.dk-tabs [aria-selected=true]{color:#ffd447;border-color:#ffd447}
::selection{background:#ffd447;color:#080c10}
@media(prefers-reduced-motion:reduce){.hero .stage::after{animation:none}}