/* Rubii — 创作印记 / 工作室拼贴（独立模板） */
:root{
  --orange:#ea580c;--burn:#c2410c;--ink:#1c1410;--muted:#6b5346;--cream:#fff7ed;
  --sand:#ffedd5;--line:#fdba74;--stamp:#9a3412;--float-h:78px;--safe:env(safe-area-inset-bottom,0px);
  --display:"Arial Black","PingFang SC","Microsoft YaHei",sans-serif;
  --body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--body);color:var(--ink);line-height:1.65;
  background:
    repeating-linear-gradient(90deg,transparent 0 18px,rgba(253,186,116,.18) 18px 19px),
    linear-gradient(135deg,#ffedd5 0%,#fff7ed 40%,#fffaf5 100%);
  padding-bottom:calc(var(--float-h) + var(--safe) + 18px);
}
img{max-width:100%;display:block;height:auto}a{color:var(--burn)}
.rb-board{width:min(1120px,calc(100% - 24px));margin:0 auto}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,247,237,.94);border-bottom:4px solid var(--ink)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:10px;position:relative}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand img{width:42px;height:42px;border:3px solid var(--ink);border-radius:2px;transform:rotate(-3deg);box-shadow:4px 4px 0 var(--orange)}
.brand span{font-family:var(--display);font-size:1.25rem;letter-spacing:.04em;text-transform:uppercase}
.nav-toggle{margin-left:auto;width:44px;height:44px;border:3px solid var(--ink);background:var(--orange);color:#fff;cursor:pointer;box-shadow:3px 3px 0 var(--ink)}
.nav-toggle-bars,.nav-toggle-bars::before,.nav-toggle-bars::after{display:block;width:16px;height:2px;background:#fff;margin:0 auto;position:relative}
.nav-toggle-bars::before,.nav-toggle-bars::after{content:"";position:absolute;left:0}
.nav-toggle-bars::before{top:-5px}.nav-toggle-bars::after{top:5px}
.nav-open .nav-toggle-bars{background:transparent}
.nav-open .nav-toggle-bars::before{top:0;transform:rotate(45deg)}
.nav-open .nav-toggle-bars::after{top:0;transform:rotate(-45deg)}
.nav-links{display:none;position:absolute;top:calc(100% + 6px);left:0;right:0;flex-direction:column;background:#fff;border:3px solid var(--ink);box-shadow:6px 6px 0 var(--orange);z-index:60}
.nav-open .nav-links{display:flex}
.nav-links a{padding:12px 14px;text-decoration:none;color:var(--ink);font-weight:800;border-bottom:2px solid var(--sand)}
.nav-links a.active,.nav-links a:hover{background:var(--orange);color:#fff}
@media(min-width:768px){
  .nav-toggle{display:none}
  .nav-links,.nav-open .nav-links{display:flex;flex-direction:row;position:static;border:none;box-shadow:none;background:transparent;gap:4px}
  .nav-links a{border:3px solid transparent;padding:6px 10px;font-size:.84rem}
  .nav-links a.active,.nav-links a:hover{border-color:var(--ink);background:var(--sand);color:var(--ink)}
}

.rb-hero{
  margin:18px 0 10px;padding:28px 20px;border:4px solid var(--ink);background:var(--cream);
  box-shadow:10px 10px 0 var(--orange);position:relative;overflow:hidden;
  display:grid;gap:22px;
}
.rb-hero::before{
  content:"";position:absolute;inset:auto -20% -40% 40%;height:120%;
  background:repeating-linear-gradient(-35deg,rgba(234,88,12,.12) 0 12px,transparent 12px 24px);
  transform:skewY(-8deg);pointer-events:none;
}
.rb-stamp{
  display:inline-block;padding:4px 10px;border:3px solid var(--stamp);color:var(--stamp);
  font-family:var(--display);font-size:.78rem;letter-spacing:.12em;transform:rotate(-6deg);
  margin-bottom:12px;background:rgba(255,255,255,.7);
}
.rb-hero h1{position:relative;font-family:var(--display);font-size:clamp(2.1rem,7vw,3.2rem);margin:0 0 10px;line-height:1.05;text-transform:uppercase;letter-spacing:-.02em}
.rb-hero .lead{position:relative;margin:0 0 18px;color:var(--muted);max-width:36em;font-size:1.02rem}
.cta-row{position:relative;display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 20px;font-weight:900;text-decoration:none!important;border:3px solid var(--ink);cursor:pointer;font-family:var(--display);letter-spacing:.03em;box-shadow:4px 4px 0 var(--ink);transition:transform .12s,box-shadow .12s}
.btn:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink)}
.btn-android{background:var(--orange);color:#fff}
.btn-ios{background:var(--ink);color:#fff}
.btn-ghost{background:#fff;color:var(--ink)}
.rb-poster{position:relative;border:4px solid var(--ink);background:#fff;padding:12px;box-shadow:8px 8px 0 var(--burn);transform:rotate(2deg)}
.rb-poster img{width:100%;max-width:260px;margin:0 auto;aspect-ratio:1;object-fit:cover}
.rb-poster p{margin:10px 0 0;text-align:center;font-family:var(--display);font-size:.9rem}

.rb-section{padding:34px 0}
.rb-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.rb-head h2{margin:0;font-family:var(--display);font-size:clamp(1.35rem,4vw,1.85rem);text-transform:uppercase}
.rb-head::after{content:"";flex:1;height:4px;background:var(--ink)}
.rb-note{border:3px solid var(--ink);background:#fff;padding:18px;box-shadow:6px 6px 0 var(--sand)}
.rb-note h2{font-family:var(--display);margin-top:0}
.rb-note p,.rb-note li{color:var(--muted)}

.rb-stamps{display:grid;gap:14px}
.rb-card{
  border:3px solid var(--ink);background:#fff;padding:16px;box-shadow:5px 5px 0 var(--orange);
  transform:rotate(-.6deg);transition:transform .2s;
}
.rb-card:nth-child(even){transform:rotate(.8deg)}
.rb-card:hover{transform:rotate(0) translateY(-3px)}
.rb-card .tag{display:inline-block;padding:2px 8px;background:var(--orange);color:#fff;font-family:var(--display);font-size:.72rem;margin-bottom:8px}
.rb-card h3{margin:0 0 6px;font-family:var(--display)}.rb-card p{margin:0;color:var(--muted);font-size:.92rem}

.rb-collage{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
.rb-shot{border:3px solid var(--ink);background:#fff;padding:8px;box-shadow:5px 5px 0 var(--line)}
.rb-shot:nth-child(1){transform:rotate(-2deg)}
.rb-shot:nth-child(2){transform:rotate(1.5deg);margin-top:18px}
.rb-shot:nth-child(3){transform:rotate(1deg)}
.rb-shot:nth-child(4){transform:rotate(-1.5deg);margin-top:10px}
.rb-shot img{width:100%;aspect-ratio:9/16;object-fit:cover;background:var(--sand)}
.rb-shot figcaption{padding:8px 4px 2px;font-family:var(--display);font-size:.82rem}

.rb-flow{display:grid;gap:12px;counter-reset:r}
.rb-flow article{counter-increment:r;display:grid;grid-template-columns:52px 1fr;gap:12px;border:3px solid var(--ink);background:#fff;padding:14px}
.rb-flow article::before{content:counter(r);display:grid;place-items:center;font-family:var(--display);font-size:1.4rem;background:var(--sand);border:3px solid var(--ink)}
.rb-flow h3{margin:0 0 4px;font-family:var(--display)}.rb-flow p{margin:0;color:var(--muted);font-size:.92rem}

.rb-tags{display:flex;flex-wrap:wrap;gap:8px}
.rb-tags a{padding:8px 12px;border:3px solid var(--ink);background:#fff;color:var(--ink);text-decoration:none;font-weight:800;font-size:.84rem;box-shadow:3px 3px 0 var(--orange)}
.rb-tags a:hover{background:var(--orange);color:#fff}

.faq details{border:3px solid var(--ink);background:#fff;padding:12px 14px;margin-bottom:10px;box-shadow:3px 3px 0 var(--sand)}
.faq summary{cursor:pointer;font-weight:900;font-family:var(--display)}.faq p{margin:8px 0 0;color:var(--muted)}
.notice{margin-top:14px;padding:12px;border:3px solid #9a3412;background:#fff1f2;color:#9f1239;font-weight:700}

.site-footer{margin-top:18px;padding:26px 0 16px;border-top:4px solid var(--ink)}
.disclaimer{padding:14px;border:4px solid #fb7185;background:#fff1f2;color:#9f1239;font-weight:900;text-align:center;margin-bottom:14px;box-shadow:4px 4px 0 #fda4af}
.stats-line{text-align:center;margin-bottom:12px;font-weight:700}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 12px;margin-bottom:10px}
.footer-links a{color:var(--muted);font-size:.84rem;font-weight:700}
.copyright{text-align:center;color:var(--muted);font-size:.8rem}

.float-bar{position:fixed;left:0;right:0;bottom:0;z-index:100;transform:translateY(110%);transition:transform .25s;padding:10px 12px calc(10px + var(--safe));background:var(--cream);border-top:4px solid var(--ink)}
.float-bar.show{transform:translateY(0)}
.float-inner{width:min(500px,100%);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.float-bar .btn{min-height:48px}

.breadcrumb{padding:14px 0 0;font-weight:700;color:var(--muted);font-size:.86rem}
.content-block{border:3px solid var(--ink);background:#fff;padding:18px;margin:12px 0;box-shadow:5px 5px 0 var(--sand)}
.related-box{margin-top:14px;padding-top:12px;border-top:3px dashed var(--line)}
.rb-sub h1{font-family:var(--display);font-size:clamp(1.7rem,5vw,2.4rem);margin:8px 0;text-transform:uppercase}

@media(min-width:768px){
  .rb-hero{grid-template-columns:1.2fr .8fr;align-items:center}
  .rb-stamps{grid-template-columns:1fr 1fr}
  .rb-collage{grid-template-columns:repeat(4,1fr)}
  .rb-shot:nth-child(n){margin-top:0}
  .rb-shot:nth-child(2){margin-top:28px}
  .rb-shot:nth-child(4){margin-top:16px}
  .rb-flow{grid-template-columns:repeat(3,1fr)}
}