:root{
  --cream:#FDF5E8; --cream2:#F8EBD6; --navy:#0F2B4A; --blue:#1666B8; --sky:#CDEFF7;
  --orange:#F26B1D; --orange-d:#C9520F; --line:#06C755; --ink2:#5A6B7E;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans TC",system-ui,sans-serif;background:var(--cream);color:var(--navy);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:480px;margin:0 auto;position:relative}

/* top bar */
.bar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:10px;padding:10px 16px;background:rgba(253,245,232,.9);backdrop-filter:blur(10px);border-bottom:1px solid rgba(15,43,74,.06)}
.bar .logo{width:34px;height:34px;border-radius:50%;overflow:hidden;background:var(--sky);flex:none}
.bar .logo img{width:100%;height:100%;object-fit:cover;object-position:50% 20%;transform:scale(1.5)}
.bar b{font-weight:900;font-size:17px;letter-spacing:.04em}
.bar small{display:block;font-size:10px;color:var(--ink2);letter-spacing:.12em;font-weight:700}
.bar .mini{margin-left:auto;background:var(--line);color:#fff;font-weight:700;font-size:13px;padding:7px 14px;border-radius:99px;display:flex;align-items:center;gap:6px}

/* hero */
.hero{position:relative;padding:22px 20px 30px;text-align:center;overflow:hidden}
.hero::before{content:"";position:absolute;left:50%;top:40px;width:560px;height:560px;transform:translateX(-50%);border-radius:50%;background:radial-gradient(circle,#DDF4FA 0%,#CDEFF7 55%,rgba(205,239,247,0) 72%)}
.kicker{position:relative;display:inline-flex;gap:6px;align-items:center;background:#fff;border:1.5px solid #F6D3BC;color:var(--orange);font-weight:700;font-size:13px;padding:6px 14px;border-radius:99px}
.kicker i{width:7px;height:7px;border-radius:50%;background:var(--orange);animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.25}}
.hero h1{position:relative;margin-top:14px;font-weight:900;font-size:clamp(34px,10vw,44px);line-height:1.18;letter-spacing:.02em;text-wrap:balance}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero p.sub{position:relative;margin-top:10px;color:var(--ink2);font-size:15px;line-height:1.6;font-weight:500}
.stage{position:relative;margin:8px auto 0;width:min(320px,82vw);aspect-ratio:1}
.stage img{width:100%;height:100%;object-fit:cover;border-radius:50%;animation:float 3.6s ease-in-out infinite;-webkit-mask-image:radial-gradient(circle,#000 62%,transparent 71%);mask-image:radial-gradient(circle,#000 62%,transparent 71%)}
@keyframes float{50%{transform:translateY(-8px)}}
.gift{position:absolute;right:-6px;bottom:22px;background:#fff;border-radius:16px;padding:8px 12px;box-shadow:0 8px 20px rgba(15,43,74,.14);text-align:left;transform:rotate(4deg)}
.gift b{display:block;color:var(--orange);font-size:20px;font-weight:900;line-height:1.1}
.gift span{font-size:11px;color:var(--ink2);font-weight:700}
.gift2{position:absolute;left:-4px;top:30px;background:var(--navy);color:#fff;border-radius:14px;padding:7px 11px;font-size:12px;font-weight:700;transform:rotate(-5deg);box-shadow:0 8px 20px rgba(15,43,74,.2)}
.gift2 b{color:#FFC94A}

/* CTA */
.cta{position:relative;display:flex;align-items:center;justify-content:center;gap:10px;width:100%;max-width:360px;margin:18px auto 0;height:62px;border-radius:18px;background:var(--line);color:#fff;font-weight:900;font-size:19px;letter-spacing:.04em;box-shadow:0 5px 0 #049A42,0 14px 26px rgba(6,199,85,.32);transition:transform .12s, box-shadow .12s;border:0;cursor:pointer}
.cta:active{transform:translateY(4px);box-shadow:0 1px 0 #049A42,0 6px 14px rgba(6,199,85,.3)}
.cta svg{flex:none}
.cta .arr{font-size:22px;margin-left:2px}
.cta.shine::after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.45) 50%,transparent 65%);background-size:250% 100%;animation:shine 2.8s infinite}
@keyframes shine{0%{background-position:130% 0}60%,100%{background-position:-60% 0}}
.cta-note{position:relative;margin-top:10px;font-size:12px;color:var(--ink2);font-weight:500}
.cta-note b{color:var(--navy)}

/* section */
section{padding:34px 20px}
.sh{display:flex;align-items:center;gap:6px;color:var(--orange);font-weight:700;font-size:13px;letter-spacing:.06em}
.h2{font-weight:900;font-size:26px;margin-top:6px;line-height:1.3;text-wrap:balance}

/* campaign */
.camp{background:linear-gradient(180deg,#2A1650,#3B1D6E);color:#fff;border-radius:28px 28px 0 0;margin-top:6px;position:relative;overflow:hidden}
.camp .sh{color:#FFB547}
.camp .h2 em{font-style:normal;color:#FFC94A}
.camp .poster{margin-top:16px;border-radius:18px;overflow:hidden;border:3px solid #FFC94A;box-shadow:0 14px 30px rgba(0,0,0,.35)}
.count{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:16px}
.count div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:10px 0;text-align:center}
.count b{display:block;font-size:26px;font-weight:900;font-variant-numeric:tabular-nums;color:#FFC94A}
.count span{font-size:11px;opacity:.75;font-weight:700}
.count-lbl{margin-top:14px;font-size:13px;opacity:.85;font-weight:700;text-align:center}
.rules{margin-top:16px;list-style:none;display:grid;gap:8px}
.rules li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.55;background:rgba(255,255,255,.06);border-radius:12px;padding:10px 12px}
.rules li b.n{flex:none;width:22px;height:22px;border-radius:50%;background:#FFC94A;color:#2A1650;display:grid;place-items:center;font-size:12px;font-weight:900;margin-top:1px}
.camp .cta{margin-top:20px}

/* ===== Community Stats (社群數據) ===== */
.stats{padding:28px 20px 24px;background:linear-gradient(180deg,#FDF5E8 0%,#F8EBD6 100%)}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stats .stat{background:#fff;border-radius:16px;padding:16px 10px;text-align:center;box-shadow:0 5px 14px rgba(15,43,74,.07);position:relative;overflow:hidden}
.stats .stat::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--orange),var(--blue))}
.stats .stat b.num{display:block;font-size:22px;font-weight:900;color:var(--navy);line-height:1.1;letter-spacing:.01em;font-family:Nunito,"Noto Sans TC",sans-serif}
.stats .stat span{display:block;margin-top:6px;font-size:11.5px;color:var(--ink2);font-weight:700;letter-spacing:.03em}
.stats-note{margin-top:16px;text-align:center;font-size:13px;color:var(--ink2);line-height:1.65;font-weight:500}
.stats-note b{color:var(--navy);font-weight:900}

/* ===== Prize Pool (抽獎池) ===== */
.pool{background:linear-gradient(180deg,#FFF8EC 0%,#FDF5E8 100%);padding:34px 20px}
.pool .sh{color:#F26B1D}
.pool .h2 em{font-style:normal;color:#F26B1D}
.pool .live{display:inline-flex;align-items:center;gap:5px;background:#FEE8DA;color:#C9520F;font-size:11px;font-weight:900;padding:4px 10px;border-radius:99px;margin-top:8px;letter-spacing:.02em}
.pool .live::before{content:"";width:7px;height:7px;border-radius:50%;background:#F26B1D;animation:livePulse 1.2s ease-in-out infinite}
@keyframes livePulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.85)}}

/* 頂獎 Hero */
.pool .top-prize{margin-top:16px;background:linear-gradient(135deg,#0F2B4A 0%,#1B4680 50%,#2A1650 100%);border-radius:22px;padding:18px 18px 20px;color:#fff;display:grid;grid-template-columns:92px 1fr;gap:16px;align-items:center;position:relative;overflow:hidden;box-shadow:0 14px 30px rgba(15,43,74,.3)}
.pool .top-prize::after{content:"";position:absolute;inset:-50% -30% auto auto;width:160px;height:160px;background:radial-gradient(circle,rgba(255,201,74,.25),transparent 65%);pointer-events:none}
.pool .top-prize .pic{width:92px;height:92px;border-radius:16px;background:#fff center/cover;box-shadow:0 6px 16px rgba(0,0,0,.3);position:relative;z-index:1}
.pool .top-prize .info{position:relative;z-index:1}
.pool .top-prize .tier{display:inline-block;background:#FFC94A;color:#2A1650;font-size:11px;font-weight:900;padding:3px 10px;border-radius:99px;letter-spacing:.04em}
.pool .top-prize h3{margin-top:6px;font-size:19px;font-weight:900;line-height:1.25;letter-spacing:.01em}
.pool .top-prize .meta{margin-top:6px;font-size:12px;color:#FFC94A;font-weight:700;opacity:.95}
.pool .top-prize .meta b{color:#fff;font-weight:900}

/* 進度 */
.pool .bar-wrap{margin-top:16px;background:#fff;border-radius:16px;padding:14px 16px;box-shadow:0 4px 14px rgba(15,43,74,.08)}
.pool .bar-hd{display:flex;justify-content:space-between;align-items:baseline;font-size:12px;font-weight:700;color:var(--ink2)}
.pool .bar-hd b{color:#F26B1D;font-size:14px;font-weight:900}
.pool .bar{position:relative;margin-top:10px;height:14px;background:#F3E6D2;border-radius:99px;overflow:hidden}
.pool .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#FFB547 0%,#F26B1D 70%,#C9520F 100%);border-radius:99px;transition:width .9s cubic-bezier(.2,.8,.2,1);box-shadow:inset 0 1px 2px rgba(255,255,255,.3)}
.pool .bar i::after{content:"";position:absolute;top:0;bottom:0;right:0;width:14px;background:#fff;border-radius:99px;border:3px solid #F26B1D;box-shadow:0 2px 6px rgba(242,107,29,.5);transform:translateX(50%)}
.pool .pulse{position:absolute;top:50%;left:0;width:30%;height:14px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);transform:translate(-100%,-50%);animation:barPulse 2.4s ease-in-out infinite;pointer-events:none}
@keyframes barPulse{0%{transform:translate(-100%,-50%)}100%{transform:translate(400%,-50%)}}
.pool .bar-sub{margin-top:10px;font-size:12px;color:var(--ink2);text-align:center;font-weight:700}
.pool .bar-sub b{color:#C9520F;font-weight:900}
.pool .bar-sub .flash{display:inline-block;animation:flash 1.5s ease-in-out infinite}
@keyframes flash{50%{opacity:.5}}

/* 中獎機率表 */
.pool .odds{margin-top:12px;display:grid;grid-template-columns:repeat(4,1fr);gap:6px;background:#fff;border-radius:14px;padding:12px 10px;box-shadow:0 4px 14px rgba(15,43,74,.06)}
.pool .odds div{text-align:center}
.pool .odds .lbl{font-size:11px;color:var(--ink2);font-weight:700}
.pool .odds .pct{display:block;margin-top:3px;font-size:14px;font-weight:900;font-family:Nunito,"Noto Sans TC",sans-serif;letter-spacing:.01em}
.pool .odds :nth-child(1) .pct{color:#F26B1D}
.pool .odds :nth-child(2) .pct{color:#B36A1B}
.pool .odds :nth-child(3) .pct{color:#1666B8}
.pool .odds :nth-child(4) .pct{color:#1F9D57}

/* 獎品陣容 Grid */
.pool .lineup{margin-top:18px}
.pool .lineup-hd{font-size:13px;font-weight:900;color:var(--navy);display:flex;align-items:center;gap:6px;margin-bottom:10px}
.pool .lineup-hd::before{content:"🎁";font-size:16px}
.pool .prizes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.pool .prize{background:#fff;border-radius:14px;padding:10px 8px 10px;text-align:center;box-shadow:0 3px 10px rgba(15,43,74,.07);position:relative;overflow:hidden}
.pool .prize .pic{width:100%;aspect-ratio:1;border-radius:10px;background:#FBF3E6 center/cover;margin-bottom:7px}
.pool .prize .tag{position:absolute;top:6px;right:6px;background:rgba(15,43,74,.85);color:#fff;font-size:9px;font-weight:900;padding:2px 6px;border-radius:99px;letter-spacing:.04em}
.pool .prize .tag.a{background:#F26B1D}
.pool .prize .tag.b{background:#B36A1B}
.pool .prize .tag.c{background:#1666B8}
.pool .prize .tag.d{background:#1F9D57}
.pool .prize b{display:block;font-size:12px;font-weight:900;color:var(--navy);line-height:1.3}

.pool .pool-cta{margin-top:18px}
.pool .legal{margin-top:10px;font-size:10.5px;color:#A79A86;text-align:center;line-height:1.5}

/* ===== 神聖商城 (Mall) ===== */
.mall{padding:34px 20px;background:linear-gradient(180deg,#FDF5E8 0%,#F8EBD6 100%)}
.mall .sh{color:var(--blue)}
.mall .h2 em{font-style:normal;color:var(--blue)}
.mall .intro{margin-top:8px;font-size:14px;color:var(--ink2);line-height:1.6;font-weight:500}
.mall .intro b{color:var(--navy);font-weight:900}
.mall .cats{margin-top:18px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.mcat{position:relative;background:#fff;border-radius:18px;padding:10px 10px 14px;text-align:center;box-shadow:0 5px 14px rgba(15,43,74,.08);transition:transform .15s, box-shadow .15s;cursor:pointer;overflow:hidden}
.mcat:active{transform:translateY(2px);box-shadow:0 2px 8px rgba(15,43,74,.1)}
.mcat .pic{width:100%;aspect-ratio:1;border-radius:12px;background:#FBF3E6 center/cover;margin-bottom:8px}
.mcat .cat-tag{position:absolute;top:14px;left:14px;background:rgba(15,43,74,.85);color:#fff;font-size:9.5px;font-weight:900;padding:3px 7px;border-radius:99px;letter-spacing:.04em;z-index:2}
.mcat.a .cat-tag{background:var(--orange)}
.mcat.b .cat-tag{background:#1F9D57}
.mcat.c .cat-tag{background:var(--blue)}
.mcat b{display:block;font-size:13px;font-weight:900;color:var(--navy);line-height:1.3;margin-top:2px}
.mcat small{display:block;font-size:11px;color:var(--ink2);margin-top:4px;line-height:1.4;font-weight:500}
.mall .mall-cta{margin-top:18px}
.mall .mall-note{margin-top:10px;text-align:center;font-size:12px;color:var(--ink2);font-weight:700}
.mall .mall-note b{color:#F26B1D}

/* ===== VOTE ADS 商家合作卡 ===== */
.biz{margin:20px 16px 28px;background:linear-gradient(135deg,#0F2B4A 0%,#1B4680 100%);border-radius:20px;padding:18px 18px;color:#fff;display:grid;grid-template-columns:52px 1fr auto;gap:14px;align-items:center;position:relative;overflow:hidden;box-shadow:0 10px 24px rgba(15,43,74,.2)}
.biz::after{content:"";position:absolute;top:-30%;right:-20%;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle,rgba(255,201,74,.18),transparent 60%);pointer-events:none}
.biz .ic{width:52px;height:52px;border-radius:14px;background:#FFC94A;color:#0F2B4A;display:grid;place-items:center;font-size:24px;flex:none;position:relative;z-index:1}
.biz .txt{position:relative;z-index:1}
.biz .ribbon{display:inline-block;background:rgba(255,201,74,.2);color:#FFC94A;font-size:10px;font-weight:900;padding:2px 7px;border-radius:99px;letter-spacing:.08em;margin-bottom:4px}
.biz b{display:block;font-size:15px;font-weight:900;line-height:1.3}
.biz small{display:block;font-size:11.5px;opacity:.75;margin-top:3px;font-weight:500;line-height:1.5}
.biz .biz-cta{flex:none;background:#fff;color:var(--navy);padding:8px 14px;border-radius:99px;font-size:12px;font-weight:900;white-space:nowrap;position:relative;z-index:1;display:inline-flex;align-items:center;gap:4px;transition:transform .12s}
.biz .biz-cta:hover{transform:translateX(3px)}

/* feature cards (站內亮點) */
.feats{padding-top:10px}
.feats .list{display:grid;gap:14px;margin-top:18px}
.fcard{position:relative;display:block;border-radius:22px;overflow:hidden;aspect-ratio:16/9;color:#fff;box-shadow:0 10px 24px rgba(15,43,74,.18);transition:transform .15s, box-shadow .15s}
.fcard:active{transform:translateY(2px);box-shadow:0 6px 14px rgba(15,43,74,.2)}
.fcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.fcard::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,41,74,.78) 0%,rgba(14,41,74,.55) 45%,rgba(14,41,74,.25) 80%)}
.fcard .inner{position:absolute;inset:0;padding:18px 20px;display:flex;flex-direction:column;justify-content:flex-end;gap:4px}
.fcard .cat{position:absolute;left:20px;top:18px;font-size:12px;font-weight:700;letter-spacing:.06em;color:rgba(255,255,255,.9);text-shadow:0 1px 3px rgba(0,0,0,.4)}
.fcard .badge{position:absolute;right:14px;top:14px;background:var(--orange);color:#fff;font-size:11px;font-weight:900;padding:5px 11px;border-radius:99px;box-shadow:0 4px 10px rgba(242,107,29,.4)}
.fcard .badge.new{background:#1F9D57;box-shadow:0 4px 10px rgba(31,157,87,.4)}
.fcard h3{font-size:26px;font-weight:900;line-height:1.15;letter-spacing:.02em;text-shadow:0 2px 6px rgba(0,0,0,.4)}
.fcard p{font-size:13px;line-height:1.5;color:rgba(255,255,255,.92);text-shadow:0 1px 4px rgba(0,0,0,.5);max-width:88%}
.fcard .go{display:inline-flex;align-items:center;gap:4px;margin-top:8px;font-size:13px;font-weight:700;color:#FFC94A}
.fcard .go .arr{display:inline-block;transition:transform .25s}
.fcard:hover .go .arr,.fcard:active .go .arr{transform:translateX(4px)}

/* polls */
.polls{background:var(--cream)}
.rail{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;margin:16px -20px 0;padding:4px 20px 14px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.card{flex:none;width:72%;max-width:300px;scroll-snap-align:center;border-radius:20px;overflow:hidden;background:#fff;box-shadow:0 8px 22px rgba(15,43,74,.1);position:relative;cursor:pointer}
.card img{aspect-ratio:813/1024;object-fit:cover;width:100%}
.card .tag{position:absolute;left:10px;top:10px;background:rgba(255,255,255,.95);color:var(--orange);font-size:11px;font-weight:700;padding:4px 10px;border-radius:99px}
.dots{display:flex;justify-content:center;gap:5px}
.dots i{width:6px;height:6px;border-radius:99px;background:#E3D3BC;transition:.25s}
.dots i.on{width:18px;background:var(--orange)}

/* steps */
.steps{display:grid;gap:12px;margin-top:18px}
.step{display:grid;grid-template-columns:52px 1fr;gap:14px;align-items:center;background:#fff;border-radius:18px;padding:14px 16px;box-shadow:0 4px 14px rgba(15,43,74,.06)}
.step .num{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-weight:900;font-size:22px;color:#fff}
.step:nth-child(1) .num{background:var(--line)}
.step:nth-child(2) .num{background:var(--orange)}
.step:nth-child(3) .num{background:var(--blue)}
.step b{font-size:16px;font-weight:900}
.step p{font-size:13px;color:var(--ink2);margin-top:2px;line-height:1.5}

/* final */
.final{background:linear-gradient(180deg,var(--cream) 0%,var(--sky) 100%);text-align:center;padding-bottom:120px}
.final img.wide{border-radius:20px;margin-top:18px;box-shadow:0 10px 24px rgba(15,43,74,.14)}
.addf{display:inline-flex;gap:6px;align-items:center;margin-top:14px;font-size:14px;font-weight:700;color:var(--blue);padding:8px 4px;border-bottom:1.5px dashed currentColor}
.foot{margin-top:28px;font-size:11px;color:#7D8B99;line-height:1.7}

/* sticky */
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:30;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:linear-gradient(180deg,rgba(253,245,232,0),rgba(253,245,232,.96) 30%);transform:translateY(110%);transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.sticky.on{transform:none}
.sticky .cta{margin:0 auto;height:56px;font-size:17px}

/* desktop: QR */
.qr{display:none}
@media (min-width:900px){
  body{background:linear-gradient(90deg,#F8EBD6,#FDF5E8 40%,#FDF5E8 60%,#F8EBD6)}
  .wrap{box-shadow:0 0 0 1px rgba(15,43,74,.06),0 30px 80px rgba(15,43,74,.12);background:var(--cream);border-radius:0 0 28px 28px;overflow:hidden}
  .sticky{display:none}
  /* QR 固定於右側（容器右邊 24px 處；為了讓左邊的影片浮窗能並排，QR 不要太靠裡） */
  .qr{display:block;position:fixed;right:max(24px,calc(50% - 240px - 234px));top:120px;width:210px;background:#fff;border-radius:22px;padding:18px;text-align:center;box-shadow:0 18px 40px rgba(15,43,74,.14)}
  .qr #qrbox{width:174px;height:174px;margin:0 auto;padding:6px;border-radius:12px;border:2px solid var(--line)}
  .qr #qrbox img,.qr #qrbox canvas{width:100%!important;height:auto!important}
  .qr b{display:block;margin-top:12px;font-weight:900;font-size:16px}
  .qr p{font-size:12px;color:var(--ink2);margin-top:4px;line-height:1.5}
}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s, transform .6s}
.reveal.in{opacity:1;transform:none}

/* ===== Floating promo video (右側浮窗) ===== */
.promo{position:fixed;z-index:40;width:160px;aspect-ratio:9/16;border-radius:18px;overflow:hidden;background:#000;box-shadow:0 14px 32px rgba(0,0,0,.3),0 0 0 2px rgba(255,255,255,.9);cursor:pointer;transform:translateX(calc(100% + 24px)) scale(.9);opacity:0;transition:transform .5s cubic-bezier(.2,.8,.2,1), opacity .4s}
.promo.show{transform:none;opacity:1}
.promo.closed{display:none}
/* 行動版：右下，避開 56px 高的 sticky CTA + safe-area */
.promo{right:12px;bottom:calc(84px + env(safe-area-inset-bottom))}
/* 桌機 (>=900px)：並排在 QR 卡「左側」(與 QR 同 top，避免重疊) */
@media (min-width:900px){
  /*
    QR 位置: right = max(24, 50vw - 240 - 234)，寬 210
      → QR 左緣距右緣 = QR.right + 210
    影片要放 QR 的左邊，再留 14px gap；影片寬 160
      → 影片 right 必須 = QR.right + 210 + 14 = QR.right + 224
      → 影片 left 距右緣 = 影片 right + 160 = QR.right + 384

    最小情境 (QR.right = 24, 螢幕很窄)：影片 right = 24 + 224 = 248
    最大情境 (QR.right = 50vw-474, 螢幕夠寬)：影片 right = 50vw - 474 + 224 = 50vw - 250
  */
  .promo{width:160px;right:max(248px,calc(50% - 250px));top:120px;bottom:auto}
}
.promo video{width:100%;height:100%;object-fit:cover;display:block}
/* 關閉按鈕 */
.promo .x{position:absolute;top:6px;right:6px;width:24px;height:24px;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;display:grid;place-items:center;font-size:14px;line-height:1;z-index:3;backdrop-filter:blur(4px);border:0;cursor:pointer}
.promo .x:hover{background:rgba(0,0,0,.75)}
/* 開聲音按鈕 — 大膽、吸睛、閃動 */
.promo .sound{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);display:flex;align-items:center;gap:5px;background:#F26B1D;color:#fff;border:0;border-radius:99px;padding:6px 12px;font-size:12px;font-weight:900;letter-spacing:.03em;box-shadow:0 4px 12px rgba(242,107,29,.55);cursor:pointer;white-space:nowrap;z-index:3;animation:soundPulse 1.6s ease-in-out infinite}
.promo .sound svg{width:12px;height:12px;flex:none}
.promo .sound.on{background:rgba(0,0,0,.55);animation:none;box-shadow:0 2px 8px rgba(0,0,0,.3)}
@keyframes soundPulse{0%,100%{transform:translateX(-50%) scale(1);box-shadow:0 4px 12px rgba(242,107,29,.55)}50%{transform:translateX(-50%) scale(1.06);box-shadow:0 6px 18px rgba(242,107,29,.8)}}
/* CTA 覆蓋提示（進 LIFF） */
.promo .label{position:absolute;left:0;right:0;top:0;padding:6px 32px 6px 10px;background:linear-gradient(180deg,rgba(0,0,0,.5),transparent);color:#fff;font-size:11px;font-weight:700;letter-spacing:.04em;text-shadow:0 1px 2px rgba(0,0,0,.4);z-index:2;pointer-events:none}