/* ============================================================
   FindMyFriend 官網（hkgamingapp.com/fmf/）
   明亮版色板 = app 真實 tokens（src/theme.ts brightColors）
   動畫系統 = 照 HKGA 官網（比例制 vh/vw；中間觸發；scroll 驅動 hero）
   ============================================================ */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip}
:root{
  /* ---- 色板（app brightColors）---- */
  --bg:#FFF9F2;            /* 奶油白 */
  --surface:#FFFCF9;       /* 暖白 */
  --surface2:#F7E5E1;      /* 淡蜜桃粉 */
  --surface3:#F0D9D3;      /* 深一級蜜桃 */
  --border:#D8BDB8;        /* 灰粉 */
  --border-strong:#C4A29C; /* 深灰粉 */
  --ink:#44383B;           /* 深啡灰 */
  --ink2:#79666B;          /* 灰啡 */
  --ink3:#9A8E90;          /* 淺灰 */
  --accent:#A43F5B;        /* 莓果紅 */
  --accent-hover:#8A3350;
  --accent-soft:rgba(164,63,91,.10);
  --on-accent:#ffffff;
  /* ---- 動畫總掣（preview 可調；比例制鐵律）---- */
  --rv-dur:0.8s;
  --line-dur:0.8s;
  --rv-scale:0.8;
  --rv-y:calc(clamp(18px,4.6vh,42px) * var(--rv-scale));
  --rv-gap:calc(var(--rv-dur) * .22);
  --max:1140px;
}
body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft JhengHei","PingFang TC","Noto Sans TC",sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.7;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ===== 動畫基底（雙向）===== */
.anim-ready .rv{opacity:0;transform:translateY(var(--rv-y,42px));
  transition:opacity var(--rv-dur,.9s) cubic-bezier(.19,1,.22,1),transform var(--rv-dur,.9s) cubic-bezier(.19,1,.22,1);
  will-change:opacity,transform}
.anim-ready .rv.in{opacity:1;transform:none}
.anim-ready .rv.d1{transition-delay:var(--rv-gap)}
.anim-ready .rv.d2{transition-delay:calc(var(--rv-gap) * 2)}
.anim-ready .rv.d3{transition-delay:calc(var(--rv-gap) * 3)}
/* 相片：由側邊滑入（唔乘全局 scale，自己節奏） */
.anim-ready .ph{--rv-dur:1.4s}
.anim-ready .ph.from-r{transform:translateX(clamp(40px,9vw,120px))}
.anim-ready .ph.from-l{transform:translateX(clamp(-40px,-9vw,-120px))}
/* hero 文字：scroll 驅動 —— 只保留 opacity transition */
.anim-ready .hero-in{transition:opacity calc(var(--rv-dur) * .7) cubic-bezier(.19,1,.22,1)}

/* ===== 導航 ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,249,242,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border)}
.nav-in{max-width:var(--max);margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px;letter-spacing:.4px}
.logo img{width:30px;height:30px;border-radius:9px}
.logo b{color:var(--accent)}
.nav-links{display:flex;gap:26px;font-size:14px;color:var(--ink2);margin-left:auto}
.nav-links a{transition:.2s}
.nav-links a:hover{color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-links + .nav-right{margin-left:0}
.lang{font-size:12.5px;color:var(--ink2);border:1px solid var(--border);padding:8px 15px;border-radius:99px;transition:.2s}
.lang:hover{color:var(--accent);border-color:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:9px;background:var(--accent);color:var(--on-accent);
  font-size:14px;font-weight:700;padding:12px 22px;border-radius:99px;border:0;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s;font-family:inherit}
.btn:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 10px 26px rgba(164,63,91,.28)}
.btn svg{width:16px;height:16px}
.btn.small{padding:9px 18px;font-size:13px}

/* ===== HERO（R3b：2.29:1 BANNER 版，跟圖原比例，唔再滿屏）===== */
.hero{position:relative;aspect-ratio:2.29/1;display:flex;align-items:center;justify-content:center;
  text-align:center;overflow:hidden;padding:0 24px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 38%;
  opacity:0;transition:opacity 1.4s ease;will-change:opacity}
.hero-bg img.on{opacity:1}
/* banner 變短，遮罩收輕，免得成條 banner 灰暗 */
.hero-bg::after{content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(180deg,rgba(68,56,59,.20) 0%,rgba(68,56,59,.12) 42%,rgba(68,56,59,.50) 100%)}
.hero-in{position:relative;z-index:2;max-width:900px;will-change:opacity}
.eyebrow{font-size:12px;letter-spacing:3.5px;color:rgba(255,252,249,.92);font-weight:600;margin-bottom:10px;
  text-shadow:0 2px 12px rgba(68,56,59,.45)}
.hero h1{font-size:clamp(24px,3.7vw,50px);line-height:1.14;font-weight:900;letter-spacing:-1.2px;color:#FFFCF9;
  text-shadow:0 3px 22px rgba(68,56,59,.45)}
.hero h1 em{font-style:normal;color:#FFD9C7}
.hero-sub{margin:12px auto 0;max-width:620px;font-size:clamp(14px,1.45vw,18px);line-height:1.85;color:rgba(255,252,249,.94);
  text-shadow:0 2px 14px rgba(68,56,59,.5)}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:12px}
.chip{font-size:12.5px;font-weight:600;color:#FFFCF9;border:1px solid rgba(255,252,249,.55);
  background:rgba(68,56,59,.22);backdrop-filter:blur(4px);padding:7px 14px;border-radius:99px}
.hero-free{margin-top:12px;font-size:clamp(12.5px,1.3vw,15px);color:rgba(255,252,249,.93);text-shadow:0 2px 10px rgba(68,56,59,.5);letter-spacing:.4px}
.hero-free b{display:block;font-size:clamp(24px,3vw,40px);line-height:1.1;font-weight:900;letter-spacing:-1.4px;color:#FFD9C7;text-shadow:0 3px 22px rgba(68,56,59,.5)}
html[lang="en"] .hero h1{font-size:clamp(22px,3.1vw,42px)}
html[lang="en"] .hero-free b{font-size:clamp(22px,2.7vw,34px)}
.hero-cta{margin-top:14px;display:flex;flex-direction:column;align-items:center;gap:10px}
.hero-cta .btn{padding:12px 26px;font-size:15px;box-shadow:0 10px 26px rgba(68,56,59,.35)}
.hero-note{font-size:12.5px;color:rgba(255,252,249,.85);text-shadow:0 2px 8px rgba(68,56,59,.5)}
.scrollhint{margin-top:8px;font-size:11.5px;letter-spacing:3px;color:rgba(255,252,249,.8);
  animation:hint 2.2s ease-in-out infinite}
@keyframes hint{0%,100%{opacity:.45;transform:translateY(0)}50%{opacity:1;transform:translateY(7px)}}

/* ===== 三行大字 ===== */
.lines{padding:clamp(90px,16vh,150px) 24px clamp(70px,12vh,120px);max-width:var(--max);margin:0 auto}
.lines h2{font-weight:900;letter-spacing:-1.5px}
.lines .ln{display:block;overflow:hidden}
.lines .ln i{display:block;font-style:normal;font-size:clamp(38px,7.2vw,102px);line-height:1.16;color:var(--ink);
  transform:translateY(118%);transition:transform var(--line-dur,1.05s) cubic-bezier(.19,1,.22,1);will-change:transform}
.lines .ln:nth-child(2) i{color:var(--accent)}
.lines .ln:nth-child(3) i{color:var(--ink3)}
.lines.in .ln i{transform:none}
.lines.in .ln:nth-child(2) i{transition-delay:calc(var(--line-dur) * .15)}
.lines.in .ln:nth-child(3) i{transition-delay:calc(var(--line-dur) * .3)}

/* ===== 段落 ===== */
.sec{padding:clamp(70px,11vh,110px) 24px}
.sec-in{max-width:var(--max);margin:0 auto}
.sec-num{font-size:calc(clamp(15px,1.65vw,17.5px) + 2px);letter-spacing:3px;color:var(--accent);font-weight:800}
.sec h2{font-size:clamp(28px,4.4vw,50px);font-weight:900;letter-spacing:-1.2px;margin-top:10px}
.sec p{font-size:clamp(15px,1.65vw,17.5px);line-height:2.05;color:var(--ink2);margin-top:20px}
.sec p strong{color:var(--ink);font-weight:700}
.sec p a{color:var(--accent);border-bottom:1px solid var(--accent-soft)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,72px);align-items:center}
.split.flip .txt{order:2}
.split.flip .pic{order:1}
.pic{border-radius:26px;overflow:hidden;background:var(--surface2);box-shadow:0 24px 60px rgba(68,56,59,.14)}
.pic img{width:100%;height:100%;object-fit:cover}
.pic.tall{aspect-ratio:3/4}
.pic.wide{aspect-ratio:4/3}
.divider{max-width:var(--max);margin:0 auto;height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent)}

/* ===== 匿名差異點（滿版 band）===== */
.band{position:relative;overflow:hidden;padding:clamp(110px,20vh,190px) 24px;text-align:center}
.band-bg{position:absolute;inset:0;z-index:0}
.band-bg img{width:100%;height:100%;object-fit:cover;object-position:center 40%}
.band-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(68,56,59,.45),rgba(68,56,59,.6))}
.band-in{position:relative;z-index:2;max-width:820px;margin:0 auto;color:#FFFCF9}
.band h2{font-size:clamp(34px,6.4vw,84px);font-weight:900;letter-spacing:-1.5px;line-height:1.15;text-shadow:0 3px 24px rgba(68,56,59,.4)}
.band p{margin-top:22px;font-size:clamp(15px,1.8vw,18px);line-height:2;color:rgba(255,252,249,.92)}

/* ===== App 展示（橫向 scroll）===== */
.shots{padding:clamp(70px,11vh,110px) 0}
.shots-head{max-width:var(--max);margin:0 auto;padding:0 24px}
.shots-row{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x proximity;
  overscroll-behavior-x:contain;
  padding:38px max(24px,calc((100vw - var(--max)) / 2 + 24px)) 26px;
  -webkit-overflow-scrolling:touch;scrollbar-width:thin}
.shot{flex:0 0 auto;scroll-snap-align:center;width:clamp(196px,44vw,236px)}
/* 首尾卡改 start/end 對齊：center 目標喺容器外 attainable 唔到，proximity snap 會同捲動拉鋸（滾輪去唔到最右嘅根因） */
.shots-row .shot:first-child{scroll-snap-align:start}
.shots-row .shot:last-child{scroll-snap-align:end}
.shots-row{cursor:grab}
.shots-row.dragging{cursor:grabbing;scroll-snap-type:none;-webkit-user-select:none;user-select:none}
.phone{background:var(--on-accent);border:1px solid var(--border);border-radius:30px;padding:9px;
  box-shadow:0 22px 50px rgba(68,56,59,.16)}
.phone .scr{position:relative;border-radius:22px;overflow:hidden;aspect-ratio:720/1462;background:var(--surface)}
.phone .scr img{width:100%;height:100%;object-fit:cover;object-position:top}
.shot figcaption{margin-top:14px;text-align:center}
.shot figcaption b{display:block;font-size:15px;color:var(--ink)}
.shot figcaption span{font-size:12.5px;color:var(--ink3);line-height:1.6;display:block;margin-top:3px}
.shots-hint{max-width:var(--max);margin:0 auto;padding:0 24px;font-size:12.5px;color:var(--ink3);letter-spacing:1px}

/* ===== 功能 grid ===== */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:26px 24px;
  transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(68,56,59,.12)}
.card .ic{width:44px;height:44px;border-radius:13px;background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .ic svg{width:22px;height:22px}
.card b{font-size:16.5px;font-weight:800;display:block}
.card p{margin-top:8px;font-size:13.8px;line-height:1.85;color:var(--ink2)}

/* ===== 安全私隱 ===== */
.safe{background:var(--surface2);border-radius:28px;padding:clamp(34px,5vw,60px);margin-top:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:26px 44px}
.safe-item{display:flex;gap:15px}
.safe-item .ic{flex:0 0 auto;width:38px;height:38px;border-radius:11px;background:var(--surface);
  color:var(--accent);display:flex;align-items:center;justify-content:center}
.safe-item .ic svg{width:19px;height:19px}
.safe-item b{display:block;font-size:15.5px;font-weight:800}
.safe-item span{font-size:13.6px;color:var(--ink2);line-height:1.8;display:block;margin-top:4px}

/* ===== FAQ ===== */
.faq{margin-top:40px;border-top:1px solid var(--border)}
.faq details{border-bottom:1px solid var(--border)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;font-size:clamp(15.5px,1.8vw,17.5px);font-weight:750}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:500;font-size:16px;
  transition:transform .25s}
.faq details[open] summary .plus{transform:rotate(45deg)}
.faq .ans{padding:0 4px 24px;color:var(--ink2);font-size:14.8px;line-height:2;max-width:820px}

/* ===== 封測登記（R4）===== */
.vh{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.beta{margin-top:46px;width:874px;max-width:100%;background:var(--surface2);border-radius:28px;padding:clamp(32px,5vw,56px);text-align:center}
.beta .beta-title{font-size:clamp(23px,3.2vw,32px);font-weight:900;letter-spacing:-1px;color:var(--ink)}
.beta .beta-desc{margin-top:12px;font-size:clamp(14px,1.6vw,16.5px);line-height:1.9;color:var(--ink2)}
.beta-form{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;max-width:762px;margin-left:auto;margin-right:auto}
.beta-form .cf-turnstile{flex:1 0 100%;display:flex;justify-content:flex-end}
.beta-input{flex:1;min-width:0;background:var(--surface);border:1.5px solid var(--border-strong);
  border-radius:99px;padding:13px 20px;font-size:15px;font-family:inherit;color:var(--ink);
  transition:border-color .2s,box-shadow .2s}
.beta-input::placeholder{color:var(--ink3)}
.beta-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.beta-btn{flex:0 0 auto;width:150px;padding:13px 0;justify-content:center}
.beta-btn[disabled]{opacity:.65;cursor:default;transform:none;box-shadow:none}
/* honeypot：肉眼隱形但存在喺 DOM，bot 先會填 */
.beta-honey{position:absolute;left:-9999px;top:auto;width:1px;height:1px;opacity:0;border:0}
.toast{position:fixed;left:50%;bottom:30px;z-index:200;transform:translate(-50%,14px);
  background:var(--ink);color:var(--surface);font-size:14px;font-weight:600;letter-spacing:.3px;
  padding:13px 24px;border-radius:99px;box-shadow:0 16px 40px rgba(68,56,59,.28);
  opacity:0;pointer-events:none;max-width:calc(100vw - 40px);text-align:center;
  transition:opacity .3s ease,transform .3s ease}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media (max-width:640px){
  .beta-form{flex-direction:column;max-width:420px}
  .beta-btn{width:100%;justify-content:center}
  .beta-form .cf-turnstile{justify-content:center}
}

/* ===== 下載 CTA ===== */
.cta{padding:clamp(80px,13vh,130px) 24px;text-align:center;background:
  radial-gradient(60% 90% at 50% 110%,var(--surface2),transparent 70%)}
.cta h2{font-size:clamp(32px,5.4vw,64px);font-weight:900;letter-spacing:-1.4px}
.cta p{margin-top:18px;color:var(--ink2);font-size:16px}
.cta-in{margin-top:38px;display:flex;align-items:center;justify-content:center;gap:clamp(26px,6vw,70px);flex-wrap:wrap}
.qr{background:var(--on-accent);border:1px solid var(--border);border-radius:20px;padding:14px;box-shadow:0 16px 40px rgba(68,56,59,.12)}
.qr img{width:clamp(120px,26vw,150px);height:auto}
.qr-note{font-size:12.5px;color:var(--ink3);margin-top:10px}
.cta-side{text-align:left;max-width:320px}
.cta-side .btn{padding:15px 26px;font-size:15.5px}
.cta-side ul{margin-top:18px;list-style:none;display:flex;flex-direction:column;gap:9px}
.cta-side li{font-size:13.8px;color:var(--ink2);display:flex;gap:9px;align-items:center}
.cta-side li svg{width:15px;height:15px;color:var(--accent);flex:0 0 auto}

/* ===== Footer ===== */
.foot{border-top:1px solid var(--border);padding:36px 24px;color:var(--ink3);font-size:13px}
.foot-in{max-width:var(--max);margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.foot b{color:var(--ink2)}
.foot a{transition:.2s}
.foot a:hover{color:var(--accent)}
.foot-links{display:flex;gap:22px;align-items:center;flex-wrap:wrap}

/* ===== reduced motion ===== */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .anim-ready .rv,.anim-ready .ph.from-l,.anim-ready .ph.from-r{opacity:1!important;transform:none!important;transition:none!important}
  .anim-ready .lines .ln i{transform:none!important;transition:none!important}
  .scrollhint{animation:none}
  .toast{transition:none}
}

/* ===== 響應式 ===== */
@media (max-width:900px){
  .grid{grid-template-columns:1fr 1fr}
  .safe{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:30px}
  .split.flip .txt{order:1}
  .split.flip .pic{order:2}
  .cta-side{text-align:center}
  .cta-side ul{align-items:center}
}
@media (max-width:640px){
  .nav-links{display:none}
  .grid{grid-template-columns:1fr}
  .foot-in{flex-direction:column;text-align:center}
}

/* ===== HERO 手機（R3b）：圖 2.29:1 一條 banner 喺頂，文字流落圖下面唔疊圖 ===== */
@media (max-width:767px){
  .hero{aspect-ratio:auto;display:block;padding:0}
  .hero-bg{position:relative;inset:auto;aspect-ratio:2.29/1}
  .hero-bg::after{display:none}
  .hero-in{padding:30px 22px 0}
  .eyebrow{color:var(--accent);text-shadow:none}
  .hero h1{color:var(--ink);text-shadow:none}
  .hero h1 em{color:var(--accent)}
  .hero-sub{color:var(--ink2);text-shadow:none}
  .chip{color:var(--accent);border-color:rgba(164,63,91,.35);background:var(--accent-soft);backdrop-filter:none}
  .hero-free{color:var(--ink);text-shadow:none}
  .hero-free b{color:var(--accent);text-shadow:none}
  .hero-note{color:var(--ink3);text-shadow:none}
  .scrollhint{color:var(--ink3)}
}

/* ===== 封測入口：浮動按鈕 + 彈窗（2026-09-24；數值全部比例制）===== */
.beta-fab{position:fixed;right:clamp(14px,2.2vw,28px);bottom:clamp(14px,2.2vw,28px);z-index:240;
  background:var(--accent);color:#fff;border:0;border-radius:999px;cursor:pointer;
  font-family:inherit;font-size:clamp(13px,1.35vw,15px);font-weight:700;letter-spacing:.02em;
  padding:clamp(11px,1.1vw,14px) clamp(18px,1.8vw,26px);
  box-shadow:0 10px 26px rgba(164,63,91,.35);transition:transform .2s ease,box-shadow .2s ease}
.beta-fab:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(164,63,91,.42)}
.beta-modal{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;
  padding:24px 16px;background:rgba(38,24,30,.5);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.beta-modal[hidden]{display:none}
.beta-modal-card{position:relative;width:min(92vw,430px);background:#FFFCF9;
  border-radius:24px;padding:clamp(26px,3.4vw,38px);text-align:center;
  box-shadow:0 30px 70px rgba(30,15,20,.3);animation:bm-pop .28s ease both}
@keyframes bm-pop{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
.beta-modal-x{position:absolute;top:10px;right:12px;width:38px;height:38px;border:0;border-radius:50%;
  background:transparent;color:var(--ink3);font-size:22px;line-height:1;cursor:pointer}
.beta-modal-x:hover{background:rgba(68,56,59,.08)}
.beta-modal-kicker{margin:0;font-size:clamp(11.5px,1.15vw,13px);font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent)}
.beta-modal-title{margin:10px 0 0;font-size:clamp(20px,2.5vw,26px);font-weight:900;letter-spacing:-.5px;color:var(--ink)}
.beta-modal-desc{margin:12px 0 0;font-size:clamp(13.5px,1.45vw,15.5px);line-height:1.8;color:var(--ink2)}
.beta-modal-btn{margin-top:22px;width:100%;justify-content:center;padding:14px 0}
#beta{scroll-margin-top:96px}
@media (prefers-reduced-motion: reduce){
  .beta-modal-card{animation:none}
  .beta-fab{transition:none}
}
@media (max-width:640px){
  .beta-modal-card{padding:26px 20px 24px}
  .beta-modal-title{font-size:22px}
}