/* ============================================================
   老虎牙子有氧飲料 × 全家 QR 抽獎活動 — DEMO
   品牌色票沿用既有；視覺母題＝上升的氧氣泡泡
   ============================================================ */

:root{
  /* 校正為老虎牙子真實品牌色：品牌藍 + 橘金 O² + 白 */
  --brand-blue:#1763A6;
  --brand-blue-hi:#1E78C6;
  --brand-blue-dk:#0E4675;
  --tiger-gold:#E89A2B;
  --tiger-gold-hi:#F4AE3E;
  --oxy-green:#3E9B5F;
  --o2-teal:#2FAFB6;
  --cream:#EEF5FB;
  --cream-2:#DEEBF7;
  --white:#FFFFFF;
  --ink:#1A2733;
  --ink-soft:#5E6B78;
  --success:#2E8B57;
  --alert:#E0622B;
  --gold-tint:#FBE6C4;
  --blue-tint:#D6E8F7;
  --border:#CFE0EF;

  --r-card:16px;
  --r-sm:10px;
  --r-thumb:12px;
  --r-pill:999px;

  --shadow:0 8px 24px rgba(42,38,32,.08);
  --shadow-lg:0 18px 48px rgba(42,38,32,.16);

  --wrap:1120px;
  --font-zh:'Noto Sans TC','PingFang TC','Microsoft JhengHei',sans-serif;
  --font-disp:'Poppins','Noto Sans TC','PingFang TC',sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none !important}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
html{overflow-x:hidden}
body{
  font-family:var(--font-zh);
  color:var(--ink);
  background:var(--cream);
  line-height:1.7;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.2;letter-spacing:.005em;font-weight:900}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4em;
  font-family:var(--font-zh);font-weight:700;font-size:1rem;
  border:none;border-radius:var(--r-pill);cursor:pointer;
  padding:13px 26px;line-height:1.1;
  transition:transform .15s ease, box-shadow .2s ease, background .2s ease;
  position:relative;white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn--gold{background:var(--tiger-gold);color:var(--ink);box-shadow:0 6px 16px rgba(224,152,46,.32)}
.btn--gold:hover{background:var(--tiger-gold-hi);transform:translateY(-2px);box-shadow:0 10px 22px rgba(224,152,46,.4)}
.btn--green{background:var(--oxy-green);color:#fff;box-shadow:0 6px 16px rgba(62,155,95,.28)}
.js-bubble-cta{color:#fff}
.luvssi .btn--gold,.how__cta .btn--gold{color:#fff}
.btn--green:hover{transform:translateY(-2px);filter:brightness(1.05)}
.btn--ghost{background:transparent;color:var(--ink);border:1.6px solid rgba(42,38,32,.28)}
.btn--ghost:hover{background:rgba(255,255,255,.5);border-color:var(--ink)}
.btn--sm{padding:9px 18px;font-size:.9rem}
.btn--lg{padding:16px 30px;font-size:1.06rem}
.btn--block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;filter:grayscale(.2)}

/* ---------- Badges / chips ---------- */
.badge{display:inline-flex;align-items:center;font-weight:700;font-size:.8125rem;
  padding:6px 14px;border-radius:var(--r-sm);background:var(--gold-tint);color:#9a6512}
.badge--teal{background:rgba(47,175,182,.16);color:#1d7c81}
.kicker{display:inline-flex;align-items:center;font-family:var(--font-disp);font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;font-size:14px;color:var(--brand-blue)}
@media (min-width:980px){ .kicker{font-size:18px} }
.kicker::before{content:"";width:1.05em;height:1.05em;margin-right:.5em;flex:0 0 auto;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2024%2024%27%3E%3Crect%20x%3D%273%27%20y%3D%2713%27%20width%3D%274%27%20height%3D%278%27%20rx%3D%271%27%2F%3E%3Crect%20x%3D%2710%27%20y%3D%278%27%20width%3D%274%27%20height%3D%2713%27%20rx%3D%271%27%2F%3E%3Crect%20x%3D%2717%27%20y%3D%273%27%20width%3D%274%27%20height%3D%2718%27%20rx%3D%271%27%2F%3E%3C%2Fsvg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2024%2024%27%3E%3Crect%20x%3D%273%27%20y%3D%2713%27%20width%3D%274%27%20height%3D%278%27%20rx%3D%271%27%2F%3E%3Crect%20x%3D%2710%27%20y%3D%278%27%20width%3D%274%27%20height%3D%2713%27%20rx%3D%271%27%2F%3E%3Crect%20x%3D%2717%27%20y%3D%273%27%20width%3D%274%27%20height%3D%2718%27%20rx%3D%271%27%2F%3E%3C%2Fsvg%3E") center/contain no-repeat}

/* ---------- DEMO ribbon ---------- */
.demo-ribbon{
  background:var(--ink);color:#f3ede1;font-size:.74rem;line-height:1.45;
  display:flex;align-items:center;gap:10px;padding:7px 16px;text-align:center;justify-content:center;
}
.demo-ribbon strong{color:var(--tiger-gold-hi)}
.demo-ribbon__close{background:none;border:none;color:#f3ede1;font-size:1.1rem;cursor:pointer;line-height:1;flex:0 0 auto;opacity:.7}
.demo-ribbon__close:hover{opacity:1}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(251,244,230,.82);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid rgba(227,217,198,.7)}
.site-header__inner{display:flex;align-items:center;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.brand__mark{width:38px;height:38px;border-radius:50%;object-fit:cover;
  box-shadow:0 0 0 2px var(--gold-tint), 0 2px 8px rgba(42,38,32,.15);background:#fff}
.brand__text{display:flex;flex-direction:column;line-height:1.05}
.brand__name{font-weight:900;font-size:1.18rem;color:var(--tiger-gold);letter-spacing:.01em}
.brand__o2{color:var(--o2-teal);margin-left:2px}
.brand__slogan{font-size:.66rem;color:var(--ink-soft);letter-spacing:.22em}
.nav{display:none;gap:22px;font-weight:500;font-size:.95rem}
.nav a{color:var(--ink-soft);position:relative;padding:4px 0}
.nav a:hover{color:var(--ink)}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--o2-teal);transition:width .2s}
.nav a:hover::after{width:100%}
.header-cta{display:none}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;background:none;border:none;cursor:pointer;border-radius:var(--r-sm)}
.nav-toggle span{display:block;height:2.4px;width:22px;background:var(--ink);border-radius:2px;transition:.25s;margin:0 auto}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7.4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.4px) rotate(-45deg)}
.nav.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
  background:var(--cream);border-bottom:1px solid var(--border);padding:8px 20px 16px;box-shadow:var(--shadow)}
.nav.open a{padding:13px 4px;border-bottom:1px solid rgba(227,217,198,.6);font-size:1.02rem}

/* ---------- Bubbles motif ---------- */
.bubbles{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.bubble{position:absolute;bottom:-60px;border-radius:50%;
  background:radial-gradient(circle at 32% 28%, rgba(255,255,255,.85), rgba(47,175,182,.22) 60%, rgba(62,155,95,.10));
  animation:rise linear infinite}
@keyframes rise{
  0%{transform:translateY(0) scale(.6);opacity:0}
  12%{opacity:.8}
  80%{opacity:.55}
  100%{transform:translateY(-118vh) scale(1.05);opacity:0}
}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100dvh;display:flex;align-items:center;
  padding:84px 0 56px;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:-2;
  background:#9fd2f6 url('../assets/img/hero_energy_wide.png') center/cover no-repeat;}
.hero__bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(238,245,251,.55) 0%, rgba(238,245,251,0) 26%, rgba(238,245,251,.10) 64%, rgba(214,232,247,.6) 100%);}
@media (max-width:700px){ .hero__bg{background-image:url('../assets/img/hero_energy_wide.png');background-position:50% 32%} }
.hero__inner{display:flex;flex-direction:column;gap:22px;position:relative;z-index:2}
.hero__copy{display:flex;flex-direction:column;gap:16px;max-width:560px}
.hero__title{font-size:clamp(1.9rem,8.4vw,3.4rem);letter-spacing:.01em}
.hero__title .hl{color:var(--tiger-gold);position:relative;white-space:nowrap}
.hero__title .hl::after{content:"";position:absolute;left:-2%;right:-2%;bottom:.08em;height:.26em;
  background:rgba(47,175,182,.32);z-index:-1;border-radius:4px}
.hero__sub{font-size:clamp(1rem,4.4vw,1.18rem);color:var(--ink-soft);font-weight:500;max-width:30ch}
.period-chip{display:inline-flex;align-items:center;gap:8px;background:var(--white);
  border:1px solid var(--border);border-radius:var(--r-pill);padding:8px 16px;
  font-weight:700;font-size:.9rem;font-family:var(--font-disp);box-shadow:var(--shadow)}
.period-chip .dot{width:9px;height:9px;border-radius:50%;background:var(--oxy-green);
  box-shadow:0 0 0 4px rgba(62,155,95,.18);animation:pulse 2s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 7px rgba(62,155,95,.05)}}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.hero__product{display:flex;justify-content:center;margin-top:8px}
.hero__bottle{width:min(74vw,330px);height:auto;filter:drop-shadow(0 26px 40px rgba(42,38,32,.28));
  animation:float 5.5s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-14px)}}
.hero__scroll{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);z-index:3;
  font-size:2rem;color:var(--ink-soft);animation:nudge 1.8s infinite;opacity:.6}
@keyframes nudge{50%{transform:translateX(-50%) translateY(6px)}}

/* ---------- Section shells ---------- */
.section{padding:56px 0}
.section.alt{background:linear-gradient(180deg,#fff8ec,var(--cream-2))}
.section-head{text-align:center;max-width:620px;margin:0 auto 32px;display:flex;flex-direction:column;align-items:center;gap:10px}
.section-head--left{text-align:left;margin-left:0}
.section-head h2{font-size:clamp(1.55rem,6vw,2.1rem)}
.section-note{color:var(--ink-soft);font-size:1rem}
.fineprint,.field__hint{font-size:.8rem;color:var(--ink-soft)}
.fineprint{text-align:center;margin-top:18px}

/* ---------- Steps ---------- */
.steps{list-style:none;display:grid;gap:40px 16px;grid-template-columns:1fr;position:relative}
.step{background:var(--white);border-radius:var(--r-card);padding:42px 20px 26px;box-shadow:var(--shadow);
  position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;
  border:2px solid var(--tiger-gold);z-index:1}
.step__n{position:absolute;top:-23px;left:50%;transform:translateX(-50%);
  width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--font-disp);font-weight:800;font-size:1.1rem;color:#fff;
  background:linear-gradient(140deg,var(--brand-blue),var(--o2-teal));
  box-shadow:0 8px 16px rgba(23,99,166,.35);border:3px solid #fff}
.step__ic{color:var(--brand-blue);line-height:0;margin-top:2px}
.step__ic svg{width:34px;height:34px;display:block}
.step__body{display:flex;flex-direction:column;gap:6px}
.step__t{font-weight:900;font-size:1.08rem;margin:0}
.step__d{color:var(--ink-soft);font-size:.92rem;line-height:1.65}
.how__cta{text-align:center;margin-top:26px}

/* ---------- Prizes ---------- */
.prize-grid{display:grid;gap:16px;grid-template-columns:1fr}
.prize{background:var(--white);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);
  border:1px solid rgba(227,217,198,.5);transition:transform .2s ease, box-shadow .2s ease;display:flex;flex-direction:column}
.prize:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.prize__media{aspect-ratio:1/1;background:linear-gradient(160deg,#fff,var(--gold-tint));position:relative;overflow:hidden}
.prize__media img{width:100%;height:100%;object-fit:contain;padding:16px;box-sizing:border-box}
.prize:not(.prize--feature) .prize__media{aspect-ratio:16/9}
.prize__tier{position:absolute;top:12px;left:12px;background:var(--tiger-gold);color:var(--ink);
  font-weight:800;font-size:.8rem;padding:5px 12px;border-radius:var(--r-sm);box-shadow:0 4px 10px rgba(0,0,0,.12)}
.prize__body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:4px}
.prize__name{font-weight:900;font-size:1.12rem}
.prize__qty{color:var(--o2-teal);font-weight:700;font-size:.9rem;font-family:var(--font-disp)}
.prize__note{color:var(--ink-soft);font-size:.88rem}
.prize__items{margin:8px 0 0;padding-left:18px;color:var(--ink-soft);font-size:.84rem;line-height:1.65}
.prize__items li{margin:2px 0}
/* featured (頭獎) */
.prize--feature{grid-column:1/-1;border:2px solid rgba(232,154,43,.5);box-shadow:0 16px 44px rgba(224,152,46,.22)}
.prize--feature .prize__media{background:linear-gradient(160deg,#fff,#fbe9cf)}
.prize--feature .prize__tier{font-size:.92rem;background:linear-gradient(135deg,var(--tiger-gold),#cf7e1c);color:#fff}
.prize--feature .prize__name{font-size:1.55rem}
.prize--feature .prize__qty{font-size:1rem}
.prize--feature .prize__note{font-size:.98rem}
.prize--feature .prize__items{font-size:.92rem}
/* banner (普獎) */
.prize--banner{grid-column:1/-1;background:linear-gradient(135deg,var(--tiger-gold),var(--tiger-gold-hi));
  color:var(--ink);flex-direction:row;align-items:center;gap:18px;padding:20px 22px}
.prize--banner .prize__emoji{width:60px;height:60px;border-radius:50%;background:rgba(255,255,255,.55);
  display:grid;place-items:center;flex:0 0 auto;overflow:hidden}
.prize--banner .prize__emoji img{width:100%;height:100%;object-fit:cover}
.prize--banner .prize__name{font-size:1.18rem}
.prize--banner .prize__qty{color:#7a4d0c}
.prize--banner .prize__note{color:rgba(42,38,32,.7)}
/* 橫幅卡的獎別標籤要回到正常流，否則 position:absolute 會逃逸到整頁左上角 */
.prize--banner .prize__tier{position:static;display:inline-block;background:rgba(255,255,255,.6);color:#7a4d0c;box-shadow:none;margin-bottom:6px}

/* ---------- Register / Form ---------- */
.register__wrap{max-width:560px;margin:0 auto}
.card{background:var(--white);border-radius:var(--r-card);box-shadow:var(--shadow);
  border:1px solid rgba(227,217,198,.6);padding:24px 22px}
.form{display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:500;font-size:.95rem}
.req{color:var(--alert)}
.opt{color:var(--ink-soft);font-weight:400;font-size:.85rem}
.field input,.field select{font-family:var(--font-zh);font-size:1rem;color:var(--ink);
  background:#fff;border:1.5px solid var(--border);border-radius:var(--r-sm);padding:12px 14px;width:100%;transition:.18s}
.field input::placeholder{color:#b6ab98}
.field input:focus,.field select:focus{outline:none;border-color:var(--o2-teal);box-shadow:0 0 0 3px rgba(47,175,182,.18)}
.field--invalid input,.field--invalid select{border-color:var(--alert);box-shadow:0 0 0 3px rgba(217,98,43,.14)}
.field__err{color:var(--alert);font-size:.82rem;min-height:0;display:none}
.field--invalid .field__err{display:block}
/* 發票照片上傳 */
/* 權重要蓋過 .field input（否則會吃到 width:100%+padding，盒子撐到滿版造成水平溢出、手機跑版） */
.field input.file-input,.file-input{position:absolute;width:1px;height:1px;padding:0;margin:0;border:0;opacity:0;overflow:hidden;clip:rect(0,0,0,0)}
.file-drop{display:flex;align-items:center;gap:12px;padding:15px 14px;border:1.5px dashed var(--border);border-radius:var(--r-sm);background:#fbfcfd;cursor:pointer;transition:.18s;color:var(--ink-soft)}
.file-drop:hover{border-color:var(--o2-teal);background:#f4fbfb}
.file-drop__icon{font-size:1.5rem;flex:0 0 auto;line-height:1}
.file-drop__text{font-size:.92rem;line-height:1.45}
.file-drop__text small{color:#b6ab98;font-size:.8rem}
.file-preview{display:flex;align-items:center;gap:12px;padding:10px;border:1.5px solid var(--border);border-radius:var(--r-sm);background:#fff}
.file-preview img{width:62px;height:62px;object-fit:cover;border-radius:8px;flex:0 0 auto;background:#eef3f7;border:1px solid var(--border)}
.file-preview__meta{display:flex;flex-direction:column;gap:5px;min-width:0}
.file-preview__meta span{font-size:.85rem;word-break:break-all;color:var(--ink)}
.file-preview__remove{align-self:flex-start;background:none;border:none;color:var(--o2-teal);font-weight:700;font-size:.84rem;cursor:pointer;padding:0;text-decoration:underline}
.field--invalid .file-drop{border-color:var(--alert);background:#fdf3ef}
/* Turnstile 響應式：防 Android 窄螢幕破框（widget 用 data-size="flexible" 隨容器寬自適應） */
.cf-turnstile-wrap{width:100%;max-width:100%;overflow:hidden;margin:4px 0}
.cf-turnstile{width:100%;max-width:100%}
@media (max-width:700px){
  .register__wrap{padding-left:12px;padding-right:12px}
  .register__wrap .card{padding-left:14px;padding-right:14px}
}
@media (max-width:350px){
  .cf-turnstile{transform:scale(.88);transform-origin:left top}
}
.field__err--block{display:none;color:var(--alert);font-size:.82rem;margin-top:-6px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--ink-soft);line-height:1.55;cursor:pointer}
.consent input{flex:0 0 auto;width:20px;height:20px;margin-top:1px;accent-color:var(--oxy-green)}
.form__note{font-size:.82rem;color:var(--o2-teal);text-align:center;background:rgba(47,175,182,.08);
  padding:9px;border-radius:var(--r-sm)}

/* ---------- Draw ---------- */
.draw{margin-top:20px;text-align:center;display:flex;flex-direction:column;gap:14px;align-items:center}
.draw__orb{position:relative;width:130px;height:130px;border-radius:50%;overflow:hidden;
  background:radial-gradient(circle at 40% 35%,#fff,var(--gold-tint) 55%,var(--tiger-gold));
  display:grid;place-items:center;box-shadow:0 12px 30px rgba(224,152,46,.35), inset 0 0 0 6px rgba(255,255,255,.5)}
.draw__emblem{width:74px;height:74px;border-radius:50%;object-fit:cover;position:relative;z-index:2}
.draw__orb.spin{animation:spinOrb 1s linear infinite}
@keyframes spinOrb{to{transform:rotate(360deg)}}
.draw__title{font-size:1.3rem}
.draw__text{color:var(--ink-soft);font-size:.95rem;max-width:34ch}
.draw__already{background:rgba(47,175,182,.1);color:#1d7c81;border-radius:var(--r-sm);padding:10px 14px;font-size:.9rem;font-weight:500}

/* ---------- Accordion ---------- */
.accordion{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.acc{background:var(--white);border-radius:var(--r-card);border:1px solid rgba(227,217,198,.6);overflow:hidden;box-shadow:var(--shadow)}
.acc__q{width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:17px 50px 17px 20px;font-family:var(--font-zh);font-weight:700;font-size:1rem;color:var(--ink);
  position:relative}
.acc__q::after{content:"＋";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  color:var(--o2-teal);font-weight:700;font-size:1.15rem;transition:transform .2s}
.acc.open .acc__q::after{content:"−"}
.acc__a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--ink-soft);font-size:.94rem}
.acc__a-inner{padding:0 20px 18px}
.acc__a ul{margin:0;padding-left:1.1em}
.acc__a li{margin:5px 0}
/* 得獎公告 */
.announce__batch-h{font-weight:800;color:var(--ink);margin:12px 0 4px}
.announce__names{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;margin:4px 0 2px}
@media (min-width:980px){ .announce__names{grid-template-columns:repeat(3,1fr);gap:8px} }
.announce__name{text-align:center;font-weight:700;color:var(--ink);background:rgba(20,80,120,.05);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;
  border:1px solid rgba(20,80,120,.1);border-radius:8px;padding:6px 4px;font-size:.78rem;letter-spacing:0}
@media (min-width:980px){ .announce__name{padding:7px 8px;font-size:.92rem;letter-spacing:.02em} }
.legal{max-width:720px;margin:18px auto 0;background:var(--white);border:1px solid var(--border);
  border-radius:var(--r-card);padding:4px 4px}
.legal>summary{cursor:pointer;padding:14px 18px;font-weight:700;color:var(--ink-soft);font-size:.92rem;list-style:none}
.legal>summary::-webkit-details-marker{display:none}
.legal>summary::before{content:"📄 ";opacity:.6}
.legal__body{padding:4px 18px 18px;display:flex;flex-direction:column;gap:12px}
.legal__body p{font-size:.82rem;color:var(--ink-soft);line-height:1.65}
.legal__body strong{color:var(--ink)}

/* ---------- Check result ---------- */
.check__wrap{text-align:center;max-width:560px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:6px}
.check__result{width:100%;margin-top:8px}

/* result cards (shared by modal + check) */
.rc{border-radius:var(--r-card);padding:24px 22px;text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center}
.rc--win{background:linear-gradient(180deg,#eafaf0,#fff);border:1.5px solid var(--success)}
.rc--lose{background:linear-gradient(180deg,#fdeee4,#fff);border:1.5px solid var(--alert)}
.rc__tag{font-weight:800;font-size:.82rem;padding:5px 14px;border-radius:var(--r-pill)}
.rc--win .rc__tag{background:var(--success);color:#fff}
.rc--lose .rc__tag{background:var(--alert);color:#fff}
.rc__title{font-size:1.5rem}
.rc--win .rc__title{color:var(--success)}
.rc--lose .rc__title{color:var(--alert)}
.rc__prize{font-weight:900;font-size:1.2rem;color:var(--ink)}
.rc__desc{color:var(--ink-soft);font-size:.94rem;max-width:36ch}
.rc__serial{font-family:var(--font-disp);font-weight:700;letter-spacing:.06em;background:var(--cream);
  border:1px dashed var(--tiger-gold);border-radius:var(--r-sm);padding:9px 16px;color:#9a6512}
.rc__actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:4px}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px}
.modal__backdrop{position:absolute;inset:0;background:rgba(42,38,32,.55);backdrop-filter:blur(3px)}
.modal__dialog{position:relative;width:100%;max-width:420px;background:var(--white);
  border-radius:var(--r-card);padding:8px;box-shadow:var(--shadow-lg);overflow:hidden;
  animation:pop .35s cubic-bezier(.18,1.1,.4,1)}
@keyframes pop{from{transform:scale(.9) translateY(10px);opacity:0}}
.modal__close{position:absolute;top:8px;right:10px;z-index:3;background:rgba(255,255,255,.7);border:none;
  width:34px;height:34px;border-radius:50%;font-size:1.3rem;cursor:pointer;color:var(--ink-soft);line-height:1}
.modal__body{position:relative;z-index:2}
.bubbles--modal,.bubbles--orb{z-index:1}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);z-index:80;
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:var(--r-sm);font-size:.9rem;font-weight:500;
  box-shadow:var(--shadow-lg);opacity:0;transition:.3s;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#cfc6b8;padding:40px 0 32px;margin-top:10px}
.site-footer__inner{display:flex;flex-direction:column;gap:14px;text-align:center;align-items:center}
.site-footer__brand{display:flex;align-items:center;gap:12px}
.site-footer__mark{width:44px;height:44px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px rgba(224,152,46,.5)}
.site-footer__name{font-weight:900;color:#fff;font-size:1.05rem}
.site-footer__slogan{font-size:.7rem;letter-spacing:.22em;color:var(--tiger-gold-hi)}
.site-footer__links{display:flex;gap:18px;flex-wrap:wrap;justify-content:center;font-size:.9rem}
.site-footer__links a{color:#cfc6b8}
.site-footer__links a:hover{color:#fff}
.site-footer__legal{display:none}
.site-footer__copy{font-size:.8rem;opacity:.8}
.site-footer__demo{font-size:.72rem;opacity:.55;max-width:46ch;line-height:1.55}

/* ============================================================
   Responsive ≥ 700 (tablet) / ≥ 980 (desktop)
   ============================================================ */
@media (min-width:700px){
  .section{padding:80px 0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .prize-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .prize--feature{display:flex;flex-direction:row}
  .prize--feature .prize__media{flex:0 0 56%;aspect-ratio:auto;min-height:480px}
  .prize--feature .prize__body{justify-content:center;padding:40px 44px}
  .prize--feature .prize__name{font-size:1.95rem}
  .prize--feature .prize__qty{font-size:1.12rem}
  .prize--feature .prize__items{font-size:.98rem}
  .hero__inner{flex-direction:row;align-items:center;justify-content:space-between;gap:30px}
  .hero__copy{flex:1}
  .hero__product{flex:0 0 42%;margin-top:0}
}
@media (min-width:980px){
  .nav{display:flex}
  .header-cta{display:inline-flex}
  .nav-toggle{display:none}
  .hero__title{font-size:clamp(3rem,5vw,3.8rem)}
  .steps{grid-template-columns:repeat(4,1fr)}
  .section-head{margin:0 auto 50px}
}

/* ===== 改版新增：品牌藍 × LUVSSI 代言 × YT 嵌入 ===== */
.brand__logo{height:40px;width:auto;display:block}
@media(min-width:980px){.brand__logo{height:46px}}
.header-cta{background:var(--tiger-gold);color:#fff}
.header-cta:hover{background:var(--tiger-gold-hi)}
.btn--gold{box-shadow:0 6px 16px rgba(232,154,43,.34)}

.endorse{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-pill);padding:6px 15px 6px 9px;font-weight:700;font-size:.82rem;box-shadow:var(--shadow);color:var(--brand-blue-dk)}
.endorse img{height:17px;width:auto}
.endorse b{color:var(--alert)}
.hero__luvssi{position:relative;display:flex;justify-content:center}
.hero__luvssi img{width:min(94vw,540px);height:auto;filter:drop-shadow(0 20px 30px rgba(23,99,166,.20))}
.hero__bottle{filter:drop-shadow(0 22px 36px rgba(23,99,166,.30))}
.hl::after{background:rgba(232,154,43,.34)}
.badge--teal{background:rgba(23,99,166,.12);color:var(--brand-blue-dk)}
.period-chip .dot{background:var(--brand-blue)}
.step__n{background:linear-gradient(140deg,var(--brand-blue),var(--o2-teal))}

.partners{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;
  padding:15px 20px;background:#fff;border-bottom:1px solid var(--border)}
.partners .lbl{font-size:.72rem;color:var(--ink-soft);letter-spacing:.05em;font-weight:500}
.partners img{height:28px;width:auto}
.partners .luv{height:22px}
.partners .divider{width:1px;height:22px;background:var(--border)}

.luvssi{background:linear-gradient(165deg,#0E4675,#1763A6 58%,#1E78C6);color:#fff;position:relative;overflow:hidden}
.luvssi .bubbles .bubble{background:radial-gradient(circle at 32% 28%, rgba(255,255,255,.7), rgba(159,208,245,.25) 60%, rgba(255,255,255,0))}
.luvssi .section-head h2{color:#fff}
.luvssi .kicker{color:#9fd0f5}
.luvssi__grid{display:grid;gap:22px;grid-template-columns:1fr;align-items:center;position:relative;z-index:2}
.luvssi__copy .endorse{margin-bottom:14px}
.luvssi__copy h2{font-size:clamp(1.5rem,6vw,2.1rem);margin-bottom:10px}
.luvssi__copy p{color:rgba(255,255,255,.85);font-size:1rem;margin-bottom:8px}
.luvssi__logo{width:min(64vw,260px);margin-bottom:16px}
.luvssi__media{display:flex;flex-direction:column;gap:16px}
.luvssi__photo{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-lg)}
.luvssi__photo img{width:100%;display:block}
.yt{position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-lg);background:#000;border:3px solid rgba(255,255,255,.55)}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media(min-width:820px){ .luvssi__grid{grid-template-columns:1.02fr .98fr;gap:34px} }

/* hero 滿版 overlay：群照滿版填底 × 文字疊左 × 瓶左下 */
.hero{position:relative;min-height:100dvh;overflow:clip;padding:0;display:block}
.hero__overlay{position:relative;z-index:5;min-height:100dvh;display:flex;flex-direction:column;justify-content:flex-start;align-items:center;padding-top:68px}
@media (max-width:979px), (orientation:portrait){
  /* 手機／直式平板：主視覺高度貼合內容，移除下方多餘空白 */
  .hero{min-height:auto}
  .hero__overlay{min-height:auto;padding-bottom:8px}
}
.hero__copy{display:flex;flex-direction:column;gap:8px;text-align:center;align-items:center;max-width:620px}
.hero__title{font-size:2.1rem;line-height:1.14;text-shadow:0 2px 18px rgba(255,255,255,.85),0 1px 2px rgba(255,255,255,.9);overflow-wrap:break-word}
.hero__sub{max-width:24ch;color:var(--brand-blue-dk);font-weight:600;text-shadow:0 1px 10px rgba(255,255,255,.9)}
/* 手機：瓶子做成標題左側 inline 夥伴（並排置中）*/
.hero__headrow{display:flex;align-items:center;justify-content:center;gap:10px;width:100%}
.hero__can-m{height:120px;width:auto;flex:0 0 auto;filter:drop-shadow(0 10px 16px rgba(13,58,102,.4))}
.endorse{box-shadow:0 8px 22px rgba(13,58,102,.18)}
.hero__cta{display:flex;gap:8px;flex-wrap:nowrap;width:100%;max-width:380px;justify-content:center}
.hero__cta .btn{flex:1 1 0;min-width:0;padding:13px 8px;font-size:.94rem;white-space:nowrap}
/* 視覺層：滿版 */
.hero__stage{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero__group{filter:drop-shadow(0 14px 24px rgba(13,58,102,.28))}
/* 桌機女團維持原 demo 版（stage 內絕對定位）；手機版改成接在 CTA 下方、置中、貼齊按鈕、縮小空隙 */
.hero__group--d{display:none}
.hero__group--m{display:block;width:100vw;max-width:100vw;height:auto;margin:-2px 0 0;margin-left:70%;transform:translateX(calc(-50% + 18px))}
.hero__can{display:none;position:absolute;top:auto;bottom:3%;left:4%;height:20vh;width:auto;z-index:3;transform:none;filter:drop-shadow(0 12px 18px rgba(13,58,102,.4))}
.hero__luvlogo{position:absolute;top:10px;right:6px;width:min(26vw,128px);z-index:4;filter:drop-shadow(0 4px 10px rgba(13,58,102,.4));pointer-events:none}
@media(min-width:520px){ .hero__title{font-size:3rem} }
@media (min-width:980px) and (orientation:landscape){
  .hero__overlay{justify-content:flex-start;align-items:flex-start;padding-top:76px}
  .hero__copy{max-width:min(58vw,660px);transform:none;text-align:left;align-items:flex-start;margin-left:clamp(24px,5.5vw,88px)}
  .hero__title{font-size:clamp(2.9rem,4.4vw,4.1rem);padding-left:0;text-align:left;letter-spacing:.02em;line-height:1.1;white-space:nowrap}
  .hero__title br{display:none}
  .hero__title .hl{margin-right:.16em}
  .hero__headrow{justify-content:flex-start}
  .hero__sub{padding-left:0;max-width:19em;font-size:clamp(1.28rem,1.8vw,1.55rem)}
  .hero__group--m{display:none}
  .hero__group--d{display:block;position:absolute;bottom:4%;left:50%;right:auto;height:auto;width:auto;max-height:80vh;max-width:95%;transform:translateX(calc(-50% + 60px))}
  .hero__can{display:block;top:auto;bottom:40px;left:26%;height:calc(100dvh - 470px);transform:rotate(-3deg)}
  .hero__can-m{display:none}
  .hero__cta{flex-wrap:nowrap;max-width:none;width:auto;justify-content:flex-start}
  .hero__cta .btn{flex:none;padding:15px 26px;font-size:1.02rem}
  .hero__luvlogo{top:88px;right:26px;width:200px}
}

/* 1180–1480px：群照放大會貼近 logo，這段把 logo 縮小上移避免壓到代言人 */
@media (min-width:980px) and (max-width:1480px) and (orientation:landscape){
  .hero__luvlogo{top:70px;right:18px;width:clamp(132px,12vw,158px)}
}

/* ---------- QA helper (?qa=1)：封頂 hero、關平滑捲動，供整頁截圖 ---------- */
.qa{scroll-behavior:auto !important}
.qa .hero{min-height:0 !important;padding-top:96px;padding-bottom:48px}
.qa .hero__overlay{min-height:0 !important}
.qa .bubble,.qa .hero__bottle{animation:none !important}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;scroll-behavior:auto}
  .hero__bottle,.bubble,.period-chip .dot,.hero__scroll{animation:none}
  .bubbles{display:none}
}

/* 進站蓋板 CF 影片 */
.cf-modal{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:56px 16px 16px;box-sizing:border-box}
.cf-modal *{box-sizing:border-box}
.cf-modal[hidden]{display:none}
.cf-modal__backdrop{position:absolute;inset:0;background:rgba(0,0,0,.82);backdrop-filter:blur(2px)}
.cf-modal__dialog{position:relative;width:100%;max-width:920px}
.cf-modal__video{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.cf-modal__video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
/* ✕ 對齊對話框右緣（不往外凸）、擺在影片上方留白處，確保不超出視窗 */
.cf-modal__close{position:absolute;top:-46px;right:0;z-index:2;width:40px;height:40px;border:0;border-radius:50%;background:#fff;color:#111;font-size:19px;line-height:1;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.4)}
.cf-modal__close:hover{background:#f0f0f0}