/* ===================== 基础 ===================== */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#08090f;
  --vk:#7c5cff;
  --cy:#4fd1ff;
  --tx:#eef1f8;
  --mu:#8b93a7;
  --ln:rgba(255,255,255,.08);
  --cd:rgba(255,255,255,.035);
}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--tx);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.55;
}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* ===================== 背景 ===================== */
.bg{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5}
.o1{width:520px;height:520px;background:radial-gradient(circle,#5b3cff,transparent 68%);
  top:-160px;left:-120px;animation:float1 22s ease-in-out infinite}
.o2{width:460px;height:460px;background:radial-gradient(circle,#00b8ff,transparent 68%);
  top:8%;right:-150px;animation:float2 26s ease-in-out infinite}
.o3{width:560px;height:560px;background:radial-gradient(circle,#8b2fff,transparent 70%);
  bottom:-220px;left:25%;opacity:.32;animation:float1 30s ease-in-out infinite reverse}
@keyframes float1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,50px) scale(1.1)}}
@keyframes float2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-50px,40px) scale(1.08)}}
.grid{position:absolute;inset:0;opacity:.055;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 20%,transparent 75%);
}
.noise{position:absolute;inset:0;opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ===================== 头部 ===================== */
.hdr{position:sticky;top:0;z-index:40;backdrop-filter:blur(16px);
  background:rgba(8,9,15,.6);border-bottom:1px solid rgba(255,255,255,.05)}
.hdr-in{max-width:1080px;margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--tx)}
.logo-mark{width:26px;height:26px;border-radius:8px;position:relative;
  background:linear-gradient(135deg,var(--vk),var(--cy));
  box-shadow:0 4px 16px rgba(124,92,255,.45)}
.logo-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;
  border:2px solid rgba(255,255,255,.9)}
.logo-mark.sm{width:20px;height:20px;border-radius:6px}
.logo-mark.sm::after{inset:5px;border-width:1.5px}
.logo-txt{font-weight:700;font-size:16px;letter-spacing:.3px}
.nav{display:flex;align-items:center;gap:22px;font-size:13.5px}
.nav a{color:var(--mu);text-decoration:none;transition:color .18s}
.nav a:hover{color:var(--tx)}
.nav-cta{color:#0a0b12!important;background:linear-gradient(135deg,var(--vk),var(--cy));
  padding:7px 15px;border-radius:9px;font-weight:650}

/* ===================== 主视觉 ===================== */
main{position:relative;z-index:1;max-width:1080px;margin:0 auto;padding:0 20px}
.hero{text-align:center;padding:56px 0 34px}
.badge-row{display:flex;justify-content:center;gap:9px;flex-wrap:wrap;margin-bottom:22px}
.pill{display:inline-flex;align-items:center;gap:7px;font-size:12px;
  padding:5px 12px;border-radius:100px;border:1px solid rgba(124,92,255,.32);
  background:rgba(124,92,255,.1);color:#b9a8ff}
.pill.ghost{border-color:var(--ln);background:rgba(255,255,255,.03);color:var(--mu)}
.dot{width:6px;height:6px;border-radius:50%;background:#34d399;
  box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.55)}
  70%{box-shadow:0 0 0 7px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
h1{font-size:clamp(30px,5.2vw,50px);line-height:1.16;font-weight:800;letter-spacing:-.8px}
.grad{background:linear-gradient(100deg,#a78bfa 0%,#60a5fa 45%,#22d3ee 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:520px;margin:18px auto 0;color:var(--mu);font-size:14.5px}

.stats{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:34px}
.stat{min-width:132px;padding:14px 18px;border-radius:14px;
  border:1px solid var(--ln);background:rgba(255,255,255,.025);backdrop-filter:blur(8px)}
.stat-v{font-size:19px;font-weight:750;letter-spacing:-.3px}
.stat-v em{font-style:normal;font-size:12px;color:var(--mu);font-weight:500}
.stat-l{font-size:11.5px;color:var(--mu);margin-top:3px}

/* ===================== 卡片 ===================== */
.stage{max-width:460px;margin:36px auto 0;position:relative}
.screen{display:none}
.screen.active{display:block;animation:in .34s cubic-bezier(.22,1,.36,1)}
@keyframes in{from{opacity:0;transform:translateY(12px) scale(.985)}to{opacity:1;transform:none}}

.card{position:relative;border-radius:22px;padding:24px 20px;
  border:1px solid rgba(255,255,255,.09);
  background:linear-gradient(180deg,rgba(22,25,38,.86),rgba(13,15,24,.92));
  backdrop-filter:blur(22px);overflow:hidden}
.card.glow::before{content:"";position:absolute;inset:0;border-radius:22px;
  padding:1px;pointer-events:none;
  background:linear-gradient(135deg,rgba(124,92,255,.55),rgba(79,209,255,.15) 45%,transparent 70%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude}
.card.glow::after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  top:-120px;right:-90px;background:radial-gradient(circle,rgba(124,92,255,.32),transparent 70%);
  pointer-events:none;filter:blur(18px)}
.card.center{text-align:center}

.card-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.card-t{font-size:15px;font-weight:700}
.card-badge{font-size:11.5px;color:var(--mu);padding:4px 10px;border-radius:100px;
  border:1px solid var(--ln);background:rgba(255,255,255,.03)}
.card-badge b{color:#60a5fa}

/* 输入 */
.lb{display:block;font-size:12.5px;color:var(--mu);margin-bottom:9px;font-weight:500}
.inp-wrap{position:relative}
input{width:100%;background:rgba(6,7,12,.85);border:1px solid rgba(255,255,255,.1);
  border-radius:13px;padding:15px 68px 15px 15px;color:var(--tx);font-size:13.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;outline:none;
  transition:border-color .18s,box-shadow .18s}
input::placeholder{color:#4a5164;font-family:inherit}
input:focus{border-color:rgba(124,92,255,.7);box-shadow:0 0 0 3px rgba(124,92,255,.14)}
.inp-btn{position:absolute;right:7px;top:50%;transform:translateY(-50%);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.09);
  color:var(--mu);font-size:12px;padding:7px 12px;border-radius:9px;cursor:pointer;
  font-family:inherit;transition:.18s}
.inp-btn:hover{background:rgba(255,255,255,.12);color:var(--tx)}
.hint{font-size:12px;color:var(--mu);margin-top:8px;min-height:17px;transition:color .18s}
.hint.bad{color:#f87171}
.hint.good{color:#34d399}

/* 按钮 */
.btn{width:100%;border:0;border-radius:13px;padding:15px 16px;font-size:14.5px;
  font-weight:650;cursor:pointer;font-family:inherit;margin-top:14px;
  display:flex;align-items:center;justify-content:center;gap:8px;
  position:relative;overflow:hidden;transition:transform .1s,box-shadow .2s,opacity .2s}
.btn:active{transform:scale(.986)}
.btn:disabled{opacity:.55;pointer-events:none}
.btn.primary{background:linear-gradient(120deg,#7c5cff,#5b8cff 50%,#22d3ee);color:#fff;
  box-shadow:0 8px 26px -8px rgba(124,92,255,.75)}
.btn.primary::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-18deg);animation:shine 3.6s ease-in-out infinite}
@keyframes shine{0%,72%{left:-120%}88%{left:130%}100%{left:130%}}
.btn.wallet{background:rgba(255,255,255,.055);color:var(--tx);
  border:1px solid rgba(255,255,255,.11)}
.btn.wallet:hover{background:rgba(255,255,255,.09)}
.btn.ghost{background:transparent;color:var(--mu);border:1px solid var(--ln)}
.btn.ghost:hover{color:var(--tx);border-color:rgba(255,255,255,.2)}
.w-ic{width:17px;height:17px;border-radius:5px;
  background:linear-gradient(135deg,var(--vk),var(--cy))}

.or{display:flex;align-items:center;gap:12px;margin:16px 0 0;color:#3f465a;font-size:11.5px}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--ln)}

.wallets{display:flex;gap:7px;flex-wrap:wrap;justify-content:center;margin-top:16px}
.wchip{font-size:11px;color:#6b7387;padding:4px 10px;border-radius:7px;
  border:1px solid rgba(255,255,255,.06);background:rgba(255,255,255,.02)}

/* 图标 */
.icon{width:58px;height:58px;border-radius:50%;margin:4px auto 18px;
  display:flex;align-items:center;justify-content:center}
.icon.ok{background:rgba(52,211,153,.12);color:#34d399;
  border:1px solid rgba(52,211,153,.3);box-shadow:0 0 30px -6px rgba(52,211,153,.5)}
.icon.ok.big{width:68px;height:68px;box-shadow:0 0 46px -6px rgba(52,211,153,.65)}
.icon.warn{background:rgba(245,158,11,.12);color:#f59e0b;
  border:1px solid rgba(245,158,11,.3)}
h2{font-size:19px;font-weight:700;letter-spacing:-.2px;margin-bottom:6px}

.muted{color:var(--mu);font-size:14px}
.muted.sm{font-size:12.5px}
.muted.xs{font-size:11.5px;margin-top:2px}
.muted.mono{font-family:ui-monospace,Menlo,monospace}
.hl{color:#60a5fa}
.foot{text-align:center;font-size:11.5px;color:#4a5164;margin-top:16px}

/* 余额 */
.balance{margin:18px 0 2px;display:flex;align-items:baseline;justify-content:center;gap:6px}
.bal-v{font-size:38px;font-weight:800;letter-spacing:-1.5px;
  background:linear-gradient(180deg,#fff,#9fb2d4);-webkit-background-clip:text;
  background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.bal-u{font-size:13px;color:var(--mu);font-weight:600}

.prize{margin:20px 0 4px;padding:15px;border-radius:14px;
  background:linear-gradient(135deg,rgba(124,92,255,.13),rgba(34,211,238,.07));
  border:1px solid rgba(124,92,255,.24)}
.prize-l{font-size:11.5px;color:#a8b0c4}
.prize-v{margin-top:4px;font-size:15px;color:#c8d3e8}
.prize-v b{font-size:23px;font-weight:800;
  background:linear-gradient(100deg,#a78bfa,#22d3ee);-webkit-background-clip:text;
  background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.prize-bar{height:4px;border-radius:100px;background:rgba(255,255,255,.08);
  margin-top:12px;overflow:hidden}
.prize-bar i{display:block;height:100%;width:0;border-radius:100px;
  background:linear-gradient(90deg,var(--vk),var(--cy));
  transition:width 1.1s cubic-bezier(.22,1,.36,1)}

/* 加载 */
.spinner{display:flex;justify-content:center;gap:7px;margin:6px auto 22px;height:44px;align-items:center}
.spinner i{width:9px;height:9px;border-radius:50%;
  background:linear-gradient(135deg,var(--vk),var(--cy));animation:bounce 1.25s infinite ease-in-out}
.spinner i:nth-child(2){animation-delay:.16s}
.spinner i:nth-child(3){animation-delay:.32s}
@keyframes bounce{0%,80%,100%{transform:translateY(0);opacity:.35}
  40%{transform:translateY(-11px);opacity:1}}

.steps-mini{display:flex;align-items:center;justify-content:center;gap:9px;
  margin-top:22px;font-size:11.5px;flex-wrap:wrap}
.sm-item{color:#4a5164;padding:5px 11px;border-radius:100px;
  border:1px solid rgba(255,255,255,.06)}
.sm-item.done{color:#34d399;border-color:rgba(52,211,153,.28);
  background:rgba(52,211,153,.08)}
.sm-item.active{color:#b9a8ff;border-color:rgba(124,92,255,.32);
  background:rgba(124,92,255,.1)}
.sm-line{width:16px;height:1px;background:var(--ln)}

/* 收款地址 */
.recv{margin-top:22px;text-align:left}
.recv-hd{display:flex;justify-content:space-between;align-items:center;
  font-size:12.5px;color:var(--mu);margin-bottom:9px}
.tag-ok{font-size:10.5px;color:#34d399;background:rgba(52,211,153,.1);
  border:1px solid rgba(52,211,153,.26);padding:2px 8px;border-radius:100px}
.addrbox{background:rgba(6,7,12,.9);border:1px solid rgba(124,92,255,.28);
  border-radius:13px;padding:15px;font-family:ui-monospace,Menlo,monospace;
  font-size:12.5px;word-break:break-all;color:#93c5fd;line-height:1.55;
  letter-spacing:.2px}
.addrbox.skel{color:#5b6478;font-family:inherit;position:relative;overflow:hidden}
.addrbox.skel::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 30%,rgba(124,92,255,.18) 50%,transparent 70%);
  animation:skel 1.4s linear infinite}
@keyframes skel{from{transform:translateX(-100%)}to{transform:translateX(100%)}}
.warn-line{text-align:center;font-size:11.5px;color:#f59e0b;margin-top:12px}

/* ===================== 步骤 ===================== */
.steps{padding:64px 0 8px}
.sec-hd{text-align:center;margin-bottom:28px}
.sec-hd h2{font-size:22px;margin-bottom:5px}
.sec-hd p{color:var(--mu);font-size:13px}
.step-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.step{display:flex;gap:14px;padding:18px;border-radius:16px;
  border:1px solid var(--ln);background:rgba(255,255,255,.022);
  transition:border-color .2s,background .2s,transform .2s}
.step:hover{border-color:rgba(124,92,255,.35);background:rgba(124,92,255,.05);
  transform:translateY(-2px)}
.step-n{font-size:13px;font-weight:800;color:transparent;
  background:linear-gradient(135deg,var(--vk),var(--cy));
  -webkit-background-clip:text;background-clip:text;flex-shrink:0;letter-spacing:-.5px}
.step-b h3{font-size:14px;font-weight:650;margin-bottom:4px}
.step-b p{font-size:12.5px;color:var(--mu);line-height:1.6}

/* ===================== 跑马灯 ===================== */
.marquee-wrap{margin:56px 0 8px;overflow:hidden;
  border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);padding:13px 0;
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee{overflow:hidden}
.mq-track{display:flex;gap:26px;white-space:nowrap;width:max-content;
  animation:mq 26s linear infinite;font-size:12.5px;color:#3f465a}
.mq-track span:nth-child(even){color:rgba(124,92,255,.5)}
@keyframes mq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===================== FAQ ===================== */
.faq{padding:56px 0 20px;max-width:640px;margin:0 auto}
.faq details{border-bottom:1px solid rgba(255,255,255,.06)}
.faq summary{list-style:none;cursor:pointer;padding:16px 2px;font-size:14px;
  font-weight:550;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{width:9px;height:9px;flex-shrink:0;position:relative}
.faq summary i::before,.faq summary i::after{content:"";position:absolute;
  background:var(--mu);border-radius:2px;transition:transform .25s}
.faq summary i::before{width:9px;height:1.5px;top:4px;left:0}
.faq summary i::after{width:1.5px;height:9px;top:0;left:4px}
.faq details[open] summary i::after{transform:scaleY(0)}
.faq details p{padding:0 2px 16px;color:var(--mu);font-size:13px;line-height:1.7}

/* ===================== 页脚 ===================== */
.ftr{margin-top:56px;border-top:1px solid rgba(255,255,255,.05);
  background:rgba(6,7,11,.6);position:relative;z-index:1}
.ftr-in{max-width:1080px;margin:0 auto;padding:24px 20px;
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  flex-wrap:wrap;font-size:12px;color:#4a5164}
.ftr-l{display:flex;align-items:center;gap:8px}
.ftr-r{display:flex;gap:8px;align-items:center}
.ftr a{color:#4a5164;text-decoration:none}
.ftr a:hover{color:var(--mu)}
.dotsep{opacity:.4}

/* ===================== 特效 / Toast ===================== */
#fx{position:fixed;inset:0;pointer-events:none;z-index:60;display:none}
#fx.on{display:block}
.toast{position:fixed;left:50%;bottom:38px;transform:translate(-50%,26px);
  background:rgba(22,25,38,.97);border:1px solid rgba(255,255,255,.12);
  color:var(--tx);font-size:13px;padding:11px 20px;border-radius:100px;
  opacity:0;pointer-events:none;transition:.3s cubic-bezier(.22,1,.36,1);z-index:70;
  backdrop-filter:blur(12px);box-shadow:0 12px 34px -10px rgba(0,0,0,.8)}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ===================== 响应式 ===================== */
@media(max-width:560px){
  .hero{padding:38px 0 24px}
  .lede{font-size:13.5px}
  .stats{gap:9px;margin-top:26px}
  .stat{min-width:calc(33.33% - 6px);padding:11px 8px}
  .stat-v{font-size:15px}
  .stat-l{font-size:10.5px}
  .card{padding:20px 16px;border-radius:19px}
  .bal-v{font-size:32px}
  .nav{gap:14px;font-size:12.5px}
  .nav a:not(.nav-cta){display:none}
  .steps{padding:48px 0 8px}
  .faq{padding:44px 0 16px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* 钱包按钮 */
.wchip.act{border:0;cursor:pointer;font-family:inherit;font-size:inherit;
  transition:background .15s,transform .1s}
.wchip.act:active{transform:scale(.96)}
.wchip.act.done{background:rgba(52,211,153,.18);color:#6ee7b7}

button:disabled{opacity:.55;cursor:default;pointer-events:none}


/* ---------------- 内置浏览器提示条 ---------------- */
.iab-bar{
  position:fixed;top:0;left:0;right:0;z-index:9999;
  display:flex;align-items:flex-start;gap:8px;
  padding:10px 12px calc(10px + env(safe-area-inset-top,0px));
  background:linear-gradient(180deg,#ffc22e,#f59e0b);
  color:#1a1207;font-size:12.5px;line-height:1.5;
  box-shadow:0 2px 14px rgba(0,0,0,.45);
}
.iab-bar[hidden]{display:none}
.iab-ico{font-size:15px;line-height:1.3;font-weight:700}
.iab-tx{flex:1}
.iab-tx b{font-weight:800}
.iab-x{
  background:none;border:0;padding:0 2px;margin:-2px 0 0;
  color:#1a1207;font-size:19px;line-height:1;opacity:.55;
}
body.has-iab{padding-top:var(--iab-h,76px)}
/* 关键：粘性头必须让到横幅下面，否则滚动手势一滑，头部就滑到横幅底下被盖住 */
body.has-iab .hdr{top:var(--iab-h,76px)}

.inp-btn{min-height:38px}
.iab-go{
  flex:0 0 auto;align-self:center;
  background:#1a1207;color:#ffc22e;border:0;border-radius:999px;
  padding:7px 13px;font-size:12.5px;font-weight:700;line-height:1;
  white-space:nowrap;
}
.iab-go:active{opacity:.75}

/* ---------------- 语言切换 ---------------- */
.lang{position:relative;display:inline-flex;margin-left:14px}
.lang-btn{
  display:inline-flex;align-items:center;gap:5px;cursor:pointer;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);
  color:var(--tx,#e8e9ee);border-radius:999px;padding:0 13px;
  min-height:40px;font-size:12.5px;line-height:1;font-family:inherit;
  -webkit-tap-highlight-color:transparent;
}
.lang-btn:active{opacity:.7}
.lang-globe{font-size:11px;opacity:.9}
.lang-caret{font-size:9px;opacity:.55;margin-left:1px}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 9px);min-width:168px;z-index:10001;
  background:#14161f;border:1px solid rgba(255,255,255,.13);border-radius:14px;
  padding:6px;box-shadow:0 14px 40px rgba(0,0,0,.6);
}
.lang-menu[hidden]{display:none}
.lang-menu button{
  display:block;width:100%;text-align:left;cursor:pointer;
  background:none;border:0;color:#e8e9ee;padding:10px 11px;
  border-radius:9px;font-size:13px;font-family:inherit;line-height:1.2;
}
.lang-menu button:hover{background:rgba(255,255,255,.08)}
.lang-menu button.on{color:#6ee7a8;font-weight:700;background:rgba(110,231,168,.08)}

/* ---------------- 移动端点击热区补强 ----------------
   导航 CTA 和页脚链接原本只有 19-33px 高，手指不好点。
   只加可点区域，不改视觉位置。 */
.nav-cta{display:inline-flex;align-items:center;min-height:40px;padding:0 14px}
.ftr-r a{display:inline-flex;align-items:center;min-height:32px;padding:0 3px}