:root{
  --fg:#eaf0ff;
  --muted:rgba(234,240,255,.75);
  --card:rgba(20,24,35,.55);
  --stroke:rgba(255,255,255,.12);
  --shadow: 0 20px 60px rgba(0,0,0,.35);
  --radius: 22px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC", "Microsoft YaHei", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--fg);
  background:#0b0d14;
  overflow-x:hidden;
}

/* (1) Launch期间锁滚动/禁点 */
body.locked{
  overflow:hidden;
  touch-action:none;
}
body.locked .wrap,
body.locked .topbar{
  pointer-events:none;
  user-select:none;
}

/* (2) Launch结束主页面轻微上浮淡入 */
body.preload .wrap,
body.preload .topbar{
  opacity:0;
  transform: translateY(10px);
}
body.entered .wrap,
body.entered .topbar{
  opacity:1;
  transform:none;
  transition: opacity .55s ease, transform .55s ease;
}

.bg{position:fixed; inset:0; z-index:-2; overflow:hidden;}
.blob{
  position:absolute;
  width:520px; height:520px;
  filter: blur(30px);
  opacity:.75;
  border-radius:50%;
  transform: translate3d(0,0,0);
  animation: float 10s ease-in-out infinite;
}
.b1{left:-120px; top:-120px; background: radial-gradient(circle at 30% 30%, #a78bfa, transparent 55%), radial-gradient(circle at 70% 70%, #22d3ee, transparent 55%);}
.b2{right:-160px; bottom:-160px; background: radial-gradient(circle at 30% 30%, #fb7185, transparent 55%), radial-gradient(circle at 70% 70%, #60a5fa, transparent 55%); animation-duration: 13s;}
@keyframes float{
  0%,100%{transform: translate(0,0) scale(1);}
  50%{transform: translate(30px,20px) scale(1.05);}
}
.noise{
  position:absolute; inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  opacity:.35;
  z-index:-1;
}
#sparkles{position:absolute; inset:0; width:100%; height:100%; z-index:-1;}

.topbar{
  position:sticky; top:0;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px;
  backdrop-filter: blur(12px);
  background: rgba(10,12,18,.35);
  border-bottom:1px solid rgba(255,255,255,.08);
  z-index:10;
}

.brand{
  display:flex; align-items:center; gap:10px;
  text-decoration:none; color:var(--fg);
  font-weight:700; letter-spacing:.3px;
}
.brand .dot{
  width:10px; height:10px; border-radius:50%;
  background: linear-gradient(135deg,#22d3ee,#a78bfa,#fb7185);
  box-shadow:0 0 18px rgba(167,139,250,.6);
}

.nav{display:flex; gap:10px; flex-wrap:wrap; justify-content:center; padding:0 10px;}
.navlink{
  color:var(--muted);
  text-decoration:none;
  font-weight:600;
  padding:8px 10px;
  border-radius:999px;
  transition:.2s;
}
.navlink:hover{background:rgba(255,255,255,.07); color:var(--fg);}
.navlink.active{background:rgba(255,255,255,.12); color:var(--fg);}

.chip{
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:var(--fg);
  border-radius:999px;
  padding:8px 12px;
  display:flex; gap:8px; align-items:center;
  cursor:pointer;
  transition:.2s;
}
.chip:hover{transform: translateY(-1px); background:rgba(255,255,255,.09);}

.wrap{max-width:1100px; margin:0 auto; padding:22px 16px 40px;}
.card{
  background: var(--card);
  border:1px solid var(--stroke);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin: 18px 0;
}

.hero{
  display:grid;
  grid-template-columns: 1.2fr .9fr;
  gap:18px;
}
@media (max-width: 880px){
  .hero{grid-template-columns:1fr;}
  .nav{display:none;}
}

h1{margin:0; font-size:44px; letter-spacing:.3px;}
.sub{color:var(--muted); line-height:1.6; margin:10px 0 16px;}
.row{display:flex; gap:12px; flex-wrap:wrap;}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:11px 14px;
  border-radius: 14px;
  text-decoration:none;
  color:#0b0d14;
  font-weight:800;
  background: linear-gradient(135deg,#22d3ee,#a78bfa,#fb7185);
  box-shadow:0 10px 25px rgba(0,0,0,.25);
  transition:.2s;
}
.btn:hover{transform: translateY(-1px); filter:saturate(1.05);}
.btn.ghost{
  background: transparent;
  color:var(--fg);
  border:1px solid rgba(255,255,255,.18);
}

.badges{display:flex; gap:8px; flex-wrap:wrap; margin-top:14px;}
.badge{
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
}

.hero-right{display:flex; flex-direction:column; gap:14px; align-items:stretch;}
.avatar{
  position:relative;
  width:100%;
  aspect-ratio: 1 / 1;
  border-radius: 22px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
}
.avatar img{
  width:100%; height:100%;
  object-fit:cover;
  transform: scale(1.02);
}
.ring{
  position:absolute; inset:-40%;
  background: conic-gradient(from 180deg, #22d3ee, #a78bfa, #fb7185, #22d3ee);
  opacity:.65;
  animation: spin 8s linear infinite;
  mix-blend-mode: screen;
}
@keyframes spin{to{transform: rotate(360deg);}}

.quote{
  display:flex; gap:10px;
  padding:14px;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
}
.qmark{font-size:28px; opacity:.7; line-height:1;}
.quote p{margin:0; line-height:1.6;}
.quote small{color:var(--muted);}

.section-title h2{margin:0; font-size:26px;}
.section-title p{margin:8px 0 0; color:var(--muted); line-height:1.6;}
code{font-family:var(--mono); font-size:.95em; color:#d6e3ff;}

.grid{
  margin-top:16px;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:12px;
}
@media (max-width: 980px){ .grid{grid-template-columns: repeat(3, 1fr);} }
@media (max-width: 640px){ .grid{grid-template-columns: repeat(2, 1fr);} }

.tile{
  position:relative;
  border-radius: 16px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  cursor:pointer;
  transition:.2s;
}
.tile:hover{transform: translateY(-2px);}
.tile img{
  width:100%; height:180px;
  object-fit:cover;
  display:block;
}
.tile .cap{
  position:absolute;
  inset:auto 0 0 0;
  padding:10px 10px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.55));
  color:rgba(255,255,255,.92);
  font-weight:700;
  font-size:13px;
}

.hint{margin-top:12px; color:var(--muted);}

.about{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-top:16px;}
@media (max-width: 780px){ .about{grid-template-columns:1fr;} }
.about-block{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
  border-radius:18px;
  padding:14px;
}
.about-block h3{margin:0 0 8px;}
.list{margin:0; padding-left:18px; color:var(--muted); line-height:1.8;}
.mono{font-family:var(--mono);}
.muted{color:var(--muted);}

.sponsor{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
  margin-top:16px;
}
@media (max-width: 780px){ .sponsor{grid-template-columns:1fr;} }
.paycard{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
  border-radius:18px;
  padding:14px;
}
.paycard h3{margin:0 0 10px;}
.paycard img{
  width:100%;
  max-height:420px;
  object-fit:contain;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.25);
}

.footer{
  margin-top:18px;
  text-align:center;
  color:rgba(234,240,255,.7);
}

/* Lightbox */
.lightbox{
  position:fixed; inset:0;
  background: rgba(0,0,0,.75);
  display:none;
  align-items:center;
  justify-content:center;
  padding:18px;
  z-index:99;
}
.lightbox.show{display:flex;}
.lightbox img{
  max-width: min(1100px, 96vw);
  max-height: 86vh;
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.12);
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
}
.lb-close{
  position:fixed;
  top:14px; right:14px;
  width:44px; height:44px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  color: var(--fg);
  font-size:18px;
  cursor:pointer;
}

/* --- Launch Screen (Apple-ish, polished) --- */
.launch{
  position:fixed;
  inset:0;
  z-index:999;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:18px;
  background: rgba(10,12,18,.72);
  backdrop-filter: blur(18px);
  transition: opacity .45s ease, transform .45s ease;
}

.launch.hide{
  opacity:0;
  transform: scale(1.01);
  pointer-events:none;
}

.launch-card{
  width:min(520px, 94vw);
  border-radius: 26px;
  border:1px solid rgba(255,255,255,.14);
  background:
    radial-gradient(1200px 600px at 20% 0%, rgba(255,255,255,.09), transparent 55%),
    radial-gradient(900px 600px at 80% 20%, rgba(255,255,255,.06), transparent 50%),
    rgba(255,255,255,.06);
  box-shadow:
    0 30px 90px rgba(0,0,0,.55),
    inset 0 1px 0 rgba(255,255,255,.10);
  padding: 26px 22px 20px;
  text-align:center;
  position:relative;
  overflow:hidden;
}

/* 微弱高光：顶部玻璃反光（非常轻） */
.launch-card::before{
  content:"";
  position:absolute;
  inset:-2px;
  background:
    radial-gradient(900px 260px at var(--hx, 45%) var(--hy, 0%),
      rgba(255,255,255,.22),
      rgba(255,255,255,.10) 28%,
      transparent 60%);
  opacity:.22;
  pointer-events:none;
  mix-blend-mode: screen;
}

/* 额外细边高光：让边缘更“润” */
.launch-card::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:26px;
  pointer-events:none;
  background: linear-gradient(180deg, rgba(255,255,255,.14), transparent 30%);
  opacity:.20;
}

.launch-logo{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  margin-bottom: 18px;
  position:relative;
  z-index:1;
}

.launch-dot{
  width:14px; height:14px;
  border-radius:999px;
  background: linear-gradient(135deg,#22d3ee,#a78bfa,#fb7185);
  box-shadow:0 0 26px rgba(167,139,250,.55);
}

.launch-title{
  font-weight: 800;
  letter-spacing:.2px;
  font-size: 22px;
}

.launch-sub{
  color: rgba(234,240,255,.72);
  font-weight: 600;
  font-size: 13px;
}

.launch-bar{
  position:relative;
  height: 8px;
  border-radius: 999px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.25);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.35);
}

/* iOS感“润”：更平滑的圆角 + 内部层次 + 光泽 */
.launch-bar-fill{
  height:100%;
  width:0%;
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.30), rgba(255,255,255,0) 55%),
    linear-gradient(90deg,#22d3ee,#a78bfa,#fb7185);
  box-shadow:
    0 8px 20px rgba(0,0,0,.22),
    inset 0 1px 0 rgba(255,255,255,.25);
  transition: width .32s cubic-bezier(.2,.9,.2,1);
  position:relative;
}

/* iOS那种“流光扫过” */
.launch-bar-fill::after{
  content:"";
  position:absolute;
  inset:-40% -30%;
  background: linear-gradient(110deg,
    transparent 35%,
    rgba(255,255,255,.28) 45%,
    rgba(255,255,255,.10) 55%,
    transparent 65%);
  transform: translateX(-60%);
  animation: shimmer 1.1s ease-in-out infinite;
  opacity:.65;
}
@keyframes shimmer{
  0%{ transform: translateX(-60%); }
  100%{ transform: translateX(60%); }
}

.launch-skip{
  margin-top: 14px;
  border:1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  color: rgba(234,240,255,.85);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 700;
  cursor:pointer;
  transition: .2s;
  position:relative;
  z-index:1;
}
.launch-skip:hover{ transform: translateY(-1px); background: rgba(255,255,255,.09); }

/* --- Mobile-only polish (iOS-ish feel) --- */
@media (max-width: 880px){
  /* iOS safe-area + nicer touch */
  body{
    -webkit-tap-highlight-color: transparent;
    overscroll-behavior-y: none;
  }
  .topbar{
    padding-left: max(14px, env(safe-area-inset-left));
    padding-right: max(14px, env(safe-area-inset-right));
  }
  .wrap{
    padding-bottom: calc(92px + env(safe-area-inset-bottom)); /* leave room for bottom dock */
  }

  /* Bottom dock nav (created by JS on mobile) */
  .mnav{
    position:fixed;
    left:0; right:0; bottom:0;
    padding: 10px max(12px, env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
    z-index: 50;
    pointer-events: none; /* enable only inner */
  }
  .mnav-inner{
    pointer-events: auto;
    display:grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 10px 10px;
    border-radius: 20px;
    border:1px solid rgba(255,255,255,.14);
    background: rgba(10,12,18,.45);
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 55px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.10);
  }
  .mnav a{
    text-decoration:none;
    color: rgba(234,240,255,.78);
    font-weight: 800;
    font-size: 12px;
    letter-spacing: .2px;
    border-radius: 14px;
    padding: 10px 8px;
    display:flex;
    align-items:center;
    justify-content:center;
    background: rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.10);
    transition: transform .12s ease, background .12s ease;
    user-select:none;
  }
  .mnav a:active{
    transform: scale(.98);
    background: rgba(255,255,255,.09);
  }
  .mnav a.active{
    color: rgba(234,240,255,.95);
    background: rgba(255,255,255,.12);
    border-color: rgba(255,255,255,.16);
  }
}