/* ===== 福尼斯 Phonics — 陽光鳳凰風格 ===== */
:root{
  --sun:#ffd24d; --gold:#f7a823; --ember:#f0712b; --flame:#e8432e;
  --ink:#3a2a18; --head:#2a1d10; --muted:#8a7256;
  --cream:#fff6e9; --cream-2:#ffe9cf; --card:#ffffff; --line:#f0e2cd;
  --maxw:1000px; --shadow:0 18px 48px rgba(190,110,30,.18);
  /* 字型：依語言切換（繁→TC、簡→SC、英→Latin） */
  --f-body:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC",Roboto,Helvetica,Arial,sans-serif;
  --f-head:"Noto Serif TC",Georgia,serif;
  --f-disp:"Cinzel","Noto Serif TC",serif;
}
html[data-lang="hans"]{
  --f-body:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","PingFang SC",Roboto,Helvetica,Arial,sans-serif;
  --f-head:"Noto Serif SC",Georgia,serif;
  --f-disp:"Cinzel","Noto Serif SC",serif;
}
html[data-lang="en"]{
  --f-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --f-head:"Cinzel",Georgia,serif;
  --f-disp:"Cinzel",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; color:var(--ink);
  font-family:var(--f-body);
  line-height:1.78; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  background:
    radial-gradient(1200px 520px at 50% -160px, rgba(255,210,77,.55), rgba(255,210,77,0) 70%),
    linear-gradient(180deg,#fff8ee 0%,#fff3e2 38%,#fff7ee 100%);
  background-attachment:fixed; overflow-x:hidden;
}
a{color:var(--ember); text-decoration:none; font-weight:600}
a:hover{text-decoration:underline}
h1,h2,h3{color:var(--head); letter-spacing:.3px}
/* 標題統一用襯線（呼應 hero 的鳳凰感），形成一致的層級 */
.section h2, .band-inner h2, .card h2{font-family:var(--f-head); letter-spacing:1px}
.section h2{font-weight:700}
.goal h3, .fcard h3{font-family:var(--f-head); font-weight:700; letter-spacing:.5px}
.kicker{font-family:"Cinzel",var(--f-body)}
.gold{background:linear-gradient(120deg,var(--gold),var(--ember));-webkit-background-clip:text;background-clip:text;color:transparent}

/* floating embers */
.embers{position:fixed; inset:0; pointer-events:none; z-index:0; overflow:hidden}
.ember{position:absolute; bottom:-20px; width:8px; height:8px; border-radius:50%;
  background:radial-gradient(circle,#ffd24d,#f0712b); opacity:.0; filter:blur(.2px);
  animation:rise linear infinite}
@keyframes rise{
  0%{transform:translateY(0) scale(1); opacity:0}
  10%{opacity:.9} 90%{opacity:.5}
  100%{transform:translateY(-115vh) scale(.4); opacity:0}
}

/* ===== hero ===== */
.hero{position:relative; z-index:1; max-width:var(--maxw); margin:0 auto; padding:74px 24px 30px; text-align:center}
.sun{position:absolute; top:-200px; left:50%; transform:translateX(-50%); width:560px; height:560px; pointer-events:none; z-index:-1}
.sun::before{content:""; position:absolute; inset:0; border-radius:50%;
  background:conic-gradient(from 0deg, rgba(247,168,35,.0) 0deg, rgba(247,168,35,.22) 6deg, rgba(247,168,35,0) 12deg);
  -webkit-mask:radial-gradient(circle, transparent 120px, #000 130px, transparent 300px);
  mask:radial-gradient(circle, transparent 120px, #000 130px, transparent 300px);
  animation:spin 60s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.appicon{width:122px; height:122px; margin:0 auto 20px; display:block; border-radius:28px;
  box-shadow:0 18px 44px rgba(190,90,20,.42), 0 4px 12px rgba(0,0,0,.12);
  animation:floaty 5s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)} 50%{transform:translateY(-7px)}}

.hero h1{font-family:var(--f-disp); font-size:50px; font-weight:800;
  margin:6px 0 2px; line-height:1.18; letter-spacing:2px;
  text-shadow:0 2px 22px rgba(240,113,43,.22)}
.hero h1 .gold{font-weight:800}
.brand-sub{font-family:var(--f-disp); font-size:19px; font-weight:600;
  letter-spacing:5px; color:var(--ember); margin:0 0 14px; text-transform:uppercase}
.hero .tag{font-size:19px; color:var(--ink); margin:0 auto 6px; max-width:620px}
.hero .sub{font-size:15px; color:var(--muted); margin:0 auto 22px; max-width:560px}

.btns{display:flex; gap:12px; justify-content:center; flex-wrap:wrap; margin-top:8px}
.btn{display:inline-flex; align-items:center; gap:8px; padding:13px 26px; border-radius:999px; font-weight:800; font-size:15px}
.btn.primary{background:linear-gradient(120deg,var(--gold),var(--ember)); color:#3a1d05;
  box-shadow:0 12px 26px rgba(240,113,43,.4)}
.btn.primary:hover{text-decoration:none; transform:translateY(-1px)}
.btn.ghost{background:#fff; color:var(--ember); border:1.5px solid #f3d6ad}
.btn.ghost:hover{text-decoration:none}

.corner-logo{position:fixed; top:12px; left:12px; z-index:70; width:46px; height:46px; border-radius:13px;
  box-shadow:0 6px 16px rgba(190,90,20,.4); cursor:pointer; transition:transform .12s ease}
.corner-logo:hover{transform:scale(1.07)}

.langbar{position:fixed; top:14px; right:14px; z-index:60; display:flex; gap:6px; margin:0;
  background:rgba(255,255,255,.7); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  padding:5px; border-radius:999px; box-shadow:0 6px 18px rgba(190,110,30,.18)}
.langbar button{border:1.5px solid transparent; background:transparent; color:var(--ember);
  padding:6px 13px; border-radius:999px; font-size:12.5px; cursor:pointer; font-weight:700; white-space:nowrap}
.langbar button.active{background:linear-gradient(120deg,var(--gold),var(--ember)); color:#fff; border-color:transparent}
@media(max-width:560px){
  .langbar button{padding:5px 9px; font-size:11.5px}
  .corner-logo{width:40px; height:40px; top:11px; left:10px}
}

/* ===== sections ===== */
.section{position:relative; z-index:1; max-width:var(--maxw); margin:0 auto; padding:48px 24px}
.section .kicker{text-align:center; color:var(--ember); font-weight:800; letter-spacing:2px; font-size:13px; text-transform:uppercase}
.section h2{text-align:center; font-size:30px; margin:6px 0 10px}
.section .lead{text-align:center; color:var(--muted); max-width:640px; margin:0 auto 30px; font-size:16px}

/* 單詞標注示範 */
.word-demo{text-align:center}
.word-line{margin-bottom:16px; display:flex; align-items:center; justify-content:center; gap:10px; flex-wrap:wrap}
.word-line .word{font-size:36px; font-weight:900;
  background:linear-gradient(160deg,var(--gold),var(--ember));-webkit-background-clip:text;background-clip:text;color:transparent}
.word-line .word-ipa{font-family:ui-monospace,Menlo,monospace; color:var(--muted); font-size:18px}
.say-btn{width:38px; height:38px; border-radius:50%; border:none; cursor:pointer; color:#fff;
  background:linear-gradient(160deg,var(--gold),var(--ember)); display:inline-flex; align-items:center; justify-content:center;
  box-shadow:0 6px 16px rgba(240,113,43,.36); transition:transform .12s ease}
.say-btn:hover{transform:scale(1.08)}
.say-btn svg{width:20px; height:20px}
.seg.pulse{animation:segpulse .4s ease}
@keyframes segpulse{0%,100%{transform:translateY(-3px) scale(1)} 50%{transform:translateY(-3px) scale(1.12)}}

/* 福尼斯標注（仿音標標注遊戲：字母 + 音圖弧線 + 音標） */
.fonis{display:inline-flex; gap:6px; justify-content:center; align-items:flex-start; flex-wrap:wrap;
  background:#fff; border:1px solid var(--line); border-radius:22px; padding:22px 26px; box-shadow:var(--shadow)}
.syl{display:flex; gap:10px; align-items:flex-start}
.syl-div{align-self:flex-start; margin:12px 10px 0; width:0; height:46px; border-left:2px dashed var(--gold); opacity:.55}
.seg{display:flex; flex-direction:column; align-items:center; min-width:36px;
  padding:8px 8px 6px; border-radius:14px; cursor:pointer; transition:transform .15s ease, background .15s ease}
.seg:hover{background:#fff5e6; transform:translateY(-3px)}
.seg .ltrs{position:relative; font-size:42px; font-weight:800; color:var(--ink); line-height:1; letter-spacing:1px;
  transition:color .15s ease}
.seg:hover .ltrs{color:var(--ember)}
.seg .num{position:absolute; top:-7px; right:-11px; min-width:18px; height:18px; padding:0 4px;
  display:inline-flex; align-items:center; justify-content:center; font-size:11px; font-weight:800;
  color:#fff; background:var(--ember); border-radius:999px; box-shadow:0 2px 5px rgba(240,113,43,.4)}
.seg .arc{height:12px; align-self:stretch; border:2.5px solid var(--ember); border-top:none;
  border-radius:0 0 16px 16px; margin-top:5px; transition:box-shadow .15s ease, border-color .15s ease}
.seg:hover .arc{border-color:var(--gold); box-shadow:0 4px 10px rgba(240,113,43,.3)}
.seg .snd{font-family:ui-monospace,Menlo,monospace; color:var(--ember); font-weight:800; margin-top:8px; font-size:16px}
.fonis-note{margin-top:16px; font-size:13.5px; color:var(--muted); max-width:560px; margin-left:auto; margin-right:auto}

/* phonogram tiles demo */
.tiles{display:flex; gap:12px; justify-content:center; flex-wrap:wrap}
.tile{width:128px; background:#fff; border:1px solid var(--line); border-radius:20px; padding:16px 10px; text-align:center; box-shadow:var(--shadow)}
.tile .g{font-size:44px; font-weight:900; line-height:1;
  background:linear-gradient(160deg,var(--gold),var(--ember));-webkit-background-clip:text;background-clip:text;color:transparent}
.tile .ipa{font-family:ui-monospace,Menlo,monospace; color:var(--ember); font-weight:700; margin:8px 0 2px}
.tile .ex{color:var(--muted); font-size:13px}
.arrow{align-self:center; font-size:24px; color:var(--gold)}

/* 目標能力（首頁最重要區塊） */
.goalgrid{display:grid; grid-template-columns:1fr 1fr; gap:20px}
.goal{position:relative; background:#fff; border-radius:24px; padding:30px 26px; box-shadow:var(--shadow); border:1px solid var(--line); overflow:hidden; text-align:center}
.goal::before{content:""; position:absolute; left:0; top:0; right:0; height:6px; background:linear-gradient(120deg,var(--gold),var(--ember))}
.goal-ic{width:60px; height:60px; border-radius:18px; display:flex; align-items:center; justify-content:center; color:#fff;
  background:linear-gradient(160deg,var(--gold),var(--ember)); margin:0 auto 16px; box-shadow:0 10px 22px rgba(240,113,43,.32)}
.goal-ic svg{width:32px; height:32px}
.goal h3{font-size:23px; margin:0 0 8px}
.goal .dir{display:inline-block; font-size:13px; font-weight:800; color:var(--ember);
  background:#fff1da; padding:4px 12px; border-radius:999px; margin:0 0 12px}
.goal p{margin:0; color:var(--ink); font-size:15.5px}

/* feature cards */
.grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px}
.fcard{background:#fff; border:1px solid var(--line); border-radius:20px; padding:24px; box-shadow:var(--shadow);
  transition:transform .15s ease}
.fcard:hover{transform:translateY(-4px)}
.fcard .ic{width:50px; height:50px; border-radius:14px; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(160deg,#fff0d0,#ffd9a8); margin-bottom:12px; color:var(--ember)}
.fcard .ic svg{width:26px; height:26px}
.fcard h3{font-size:18px; margin:0 0 6px}
.fcard p{margin:0; color:var(--muted); font-size:14.5px}

/* steps */
.steps{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
.step{background:linear-gradient(160deg,#fff,#fff7ea); border:1px solid var(--line); border-radius:18px; padding:22px 18px; text-align:center; box-shadow:var(--shadow)}
.step .n{width:38px; height:38px; margin:0 auto 10px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(120deg,var(--gold),var(--ember)); color:#fff; font-weight:900}
.step b{display:block; margin-bottom:4px}
.step span{color:var(--muted); font-size:14px}

/* band CTA */
.band{position:relative; z-index:1; max-width:var(--maxw); margin:20px auto 60px; padding:0 24px}
.band-inner{background:linear-gradient(120deg,var(--gold),var(--ember)); border-radius:26px; padding:40px 28px; text-align:center;
  color:#3a1d05; box-shadow:0 20px 50px rgba(240,113,43,.4)}
.band-inner h2{color:#3a1d05; font-size:26px; margin:0 0 8px}
.band-inner p{margin:0 0 18px; color:#5a3410}
.band .btn.primary{background:#fff; color:var(--ember)}

/* legal pages (card) */
.wrap{position:relative; z-index:1; max-width:760px; margin:0 auto 60px; padding:0 18px}
.card{background:#fff; border-radius:22px; padding:30px 26px; box-shadow:var(--shadow); border:1px solid var(--line)}
.card h2{font-size:21px; margin:28px 0 8px; text-align:left} .card h2:first-of-type{margin-top:4px}
.card h3{font-size:16px; margin:18px 0 4px} .card p,.card li{font-size:15.5px; color:#4a3a28}
.card ul{padding-left:20px}
.meta{color:var(--muted); font-size:13px; margin:0 0 16px}
.divider{height:1px; background:var(--line); margin:24px 0}

/* 意見回饋表單 */
.fbform{margin-top:14px; display:flex; flex-direction:column; gap:12px}
.fbform textarea, .fbform input{width:100%; font:inherit; padding:12px 14px; border:1.5px solid var(--line);
  border-radius:14px; background:#fffdf8; color:var(--ink); resize:vertical}
.fbform textarea:focus, .fbform input:focus{outline:none; border-color:var(--gold); background:#fff}
.fbform .row{display:flex; gap:12px; align-items:center; flex-wrap:wrap}
.fbform .btn{align-self:flex-start}
.fb-status{font-size:14px; color:var(--ember); font-weight:700}

footer{position:relative; z-index:1; text-align:center; color:var(--muted); font-size:13px; padding:0 24px 50px}
footer a{margin:0 8px}

/* language toggle: 繁體(hant) / 简体(hans) / English(en) */
.lang-zh-hans,.lang-en{display:none}
[data-lang="hans"] .lang-zh-hant{display:none}
[data-lang="hans"] .lang-zh-hans{display:inline}
[data-lang="en"] .lang-zh-hant{display:none}
[data-lang="en"] .lang-en{display:inline}

@media(max-width:820px){ .grid{grid-template-columns:1fr 1fr} .steps{grid-template-columns:1fr 1fr} }
@media(max-width:560px){
  .hero h1{font-size:33px} .grid{grid-template-columns:1fr} .steps{grid-template-columns:1fr}
  .goalgrid{grid-template-columns:1fr} .section h2{font-size:25px} .arrow{display:none}
}