/* Bubbly — 气泡乐园 / 玩趣流体（独立模板） */
:root{
  --pink:#f472b6;--hot:#db2777;--deep:#9d174d;--sky:#67e8f9;--ink:#2a1220;
  --muted:#7a5268;--foam:#fff0f7;--float-h:80px;--safe:env(safe-area-inset-bottom,0px);
  --display:"Trebuchet MS","Segoe UI","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:
    radial-gradient(circle at 12% 18%,rgba(103,232,249,.35) 0 8%,transparent 9%),
    radial-gradient(circle at 88% 12%,rgba(244,114,182,.4) 0 10%,transparent 11%),
    radial-gradient(circle at 70% 70%,rgba(251,207,232,.5) 0 12%,transparent 13%),
    radial-gradient(circle at 20% 80%,rgba(103,232,249,.25) 0 7%,transparent 8%),
    linear-gradient(165deg,#ffe4f1 0%,#fff7fb 45%,#ecfeff 100%);
  padding-bottom:calc(var(--float-h) + var(--safe) + 16px);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}a{color:var(--hot)}
.bb-shell{width:min(1100px,calc(100% - 24px));margin:0 auto;position:relative}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,240,247,.82);backdrop-filter:blur(14px);border-bottom:2px solid rgba(244,114,182,.25)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:58px;gap:10px;position:relative}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-family:var(--display)}
.brand img{width:40px;height:40px;border-radius:50%;border:3px solid #fff;box-shadow:0 6px 0 rgba(244,114,182,.45)}
.brand span{font-size:1.2rem}
.nav-toggle{margin-left:auto;width:44px;height:44px;border-radius:50%;border:2px solid var(--pink);background:#fff;cursor:pointer}
.nav-toggle-bars,.nav-toggle-bars::before,.nav-toggle-bars::after{display:block;width:16px;height:2px;background:var(--deep);margin:0 auto;position:relative;border-radius:2px}
.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% + 8px);left:0;right:0;flex-direction:column;padding:12px;background:#fff;border-radius:24px;border:2px solid var(--pink);box-shadow:0 12px 0 rgba(244,114,182,.2);z-index:60}
.nav-open .nav-links{display:flex}
.nav-links a{padding:12px 14px;border-radius:999px;text-decoration:none;color:var(--muted);font-weight:600}
.nav-links a.active,.nav-links a:hover{background:linear-gradient(90deg,#fce7f3,#ecfeff);color:var(--deep)}
@media(min-width:768px){
  .nav-toggle{display:none}
  .nav-links,.nav-open .nav-links{display:flex;flex-direction:row;position:static;padding:0;border:none;box-shadow:none;background:transparent;gap:4px}
  .nav-links a{padding:8px 12px;font-size:.86rem}
}

.bb-hero{padding:28px 0 10px;display:grid;gap:24px;align-items:center}
.bb-bubble-stage{position:relative;min-height:220px;display:grid;place-items:center}
.bb-blob{
  position:absolute;border-radius:50%;filter:blur(0);
  animation:bbFloat 6s ease-in-out infinite;
}
.bb-blob.a{width:160px;height:160px;background:rgba(244,114,182,.35);left:8%;top:10%;animation-delay:-1s}
.bb-blob.b{width:110px;height:110px;background:rgba(103,232,249,.4);right:12%;top:20%;animation-delay:-2.5s}
.bb-blob.c{width:70px;height:70px;background:rgba(251,207,232,.7);left:30%;bottom:8%;animation-delay:-.5s}
@keyframes bbFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.bb-hero-card{
  position:relative;z-index:1;text-align:center;padding:28px 20px;max-width:420px;
  background:rgba(255,255,255,.72);border-radius:40px 40px 48px 48px;
  border:3px solid rgba(255,255,255,.9);box-shadow:0 18px 0 rgba(219,39,119,.12),0 30px 60px rgba(157,23,77,.1);
}
.bb-hero-card img{width:88px;height:88px;margin:0 auto 12px;border-radius:50%;border:4px solid #fff;box-shadow:0 8px 0 var(--pink)}
.bb-kicker{display:inline-block;padding:4px 12px;border-radius:999px;background:#ecfeff;color:#0e7490;font-size:.78rem;font-weight:700;margin-bottom:10px}
.bb-hero h1{font-family:var(--display);font-size:clamp(2.1rem,8vw,3rem);margin:0 0 8px;letter-spacing:-.02em;background:linear-gradient(120deg,var(--deep),var(--hot),#0891b2);-webkit-background-clip:text;background-clip:text;color:transparent}
.bb-hero .lead{margin:0 0 18px;color:var(--muted)}
.bb-hero-tip{
  grid-column:1 / -1;
  margin:0;
  padding:14px 16px;
  border-radius:20px;
  background:rgba(255,255,255,.78);
  border:2px solid rgba(244,114,182,.28);
  color:var(--muted);
  font-size:.95rem;
  text-align:center;
}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border-radius:999px;font-weight:800;text-decoration:none!important;border:3px solid transparent;cursor:pointer;font-family:inherit;transition:transform .15s}
.btn:active{transform:scale(.96)}
.btn-android{background:linear-gradient(135deg,#f472b6,#db2777);color:#fff;box-shadow:0 8px 0 #9d174d}
.btn-ios{background:#2a1220;color:#fff;box-shadow:0 8px 0 #111}
.btn-ghost{background:#fff;border-color:var(--pink);color:var(--deep);box-shadow:0 6px 0 rgba(244,114,182,.35)}
.bb-copy h2{font-family:var(--display);font-size:clamp(1.5rem,4vw,2rem);margin:0 0 10px}
.bb-copy p{color:var(--muted);margin:0 0 .9em}

.bb-section{padding:36px 0}
.bb-section-head{text-align:center;margin-bottom:20px}
.bb-section-head h2{margin:0 0 6px;font-family:var(--display);font-size:clamp(1.4rem,4vw,1.9rem)}
.bb-section-head p{margin:0;color:var(--muted)}
.bb-pops{display:grid;gap:14px}
.bb-pop{
  display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:center;
  padding:16px;background:rgba(255,255,255,.78);border-radius:28px;border:2px solid rgba(244,114,182,.3);
}
.bb-pop .n{
  width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font-weight:900;font-size:1.2rem;color:#fff;
  background:radial-gradient(circle at 30% 30%,#fff6,transparent 40%),linear-gradient(145deg,var(--pink),var(--hot));
  box-shadow:inset -4px -6px 12px rgba(0,0,0,.12);
}
.bb-pop h3{margin:0 0 4px}.bb-pop p{margin:0;color:var(--muted);font-size:.92rem}

.bb-orbs{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.bb-orb{text-align:center}
.bb-orb .ring{width:min(100%,200px);aspect-ratio:1;margin:0 auto;border-radius:50%;padding:10px;background:linear-gradient(145deg,#fce7f3,#ecfeff);box-shadow:0 12px 0 rgba(244,114,182,.15)}
.bb-orb img{width:100%;height:100%;object-fit:cover;border-radius:50%;background:#fff}
.bb-orb figcaption{margin-top:10px;font-weight:700;color:var(--deep);font-size:.9rem}

.bb-lane{display:grid;gap:12px}
.bb-chip{padding:16px 18px;border-radius:24px;background:#fff;border:2px dashed var(--pink)}
.bb-chip h3{margin:0 0 4px}.bb-chip p{margin:0;color:var(--muted);font-size:.92rem}

.bb-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.bb-tags a{padding:10px 14px;border-radius:999px;background:#fff;border:2px solid #fbcfe8;color:var(--ink);text-decoration:none;font-size:.86rem;font-weight:600}
.bb-tags a:hover{background:#fce7f3;border-color:var(--hot);color:var(--deep)}

.faq details{background:rgba(255,255,255,.85);border:2px solid #fbcfe8;border-radius:20px;padding:12px 16px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:800}.faq p{margin:10px 0 0;color:var(--muted)}
.notice{margin-top:14px;padding:14px;border-radius:20px;background:#fff7ed;border:2px solid #fdba74;color:#9a3412}

.site-footer{margin-top:20px;padding:28px 0 16px}
.disclaimer{padding:14px;border-radius:24px;background:#fff1f2;border:3px solid #fb7185;color:#9f1239;font-weight:800;text-align:center;margin-bottom:14px}
.stats-line{text-align:center;margin-bottom:12px}
.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}
.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(120%);transition:transform .28s cubic-bezier(.2,.8,.2,1);padding:12px 12px calc(12px + var(--safe));background:rgba(255,240,247,.94);border-top:3px solid rgba(244,114,182,.35)}
.float-bar.show{transform:translateY(0)}
.float-inner{width:min(480px,100%);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.float-bar .btn{min-height:50px;box-shadow:0 6px 0 rgba(0,0,0,.15)}

.breadcrumb{padding:14px 0 0;color:var(--muted);font-size:.86rem}
.content-block{background:rgba(255,255,255,.82);border:2px solid #fbcfe8;border-radius:28px;padding:20px;margin:14px 0}
.related-box{margin-top:14px;padding-top:12px;border-top:2px dashed #fbcfe8}
.bb-sub h1{font-family:var(--display);font-size:clamp(1.7rem,5vw,2.3rem);margin:8px 0}

@media(min-width:768px){
  .bb-hero{grid-template-columns:1.05fr .95fr}
  .bb-pops{grid-template-columns:1fr 1fr}
  .bb-orbs{grid-template-columns:repeat(4,1fr)}
  .bb-lane{grid-template-columns:repeat(3,1fr)}
}