/* TYC LEAGUE 官網 — 共用樣式(依 TYC 設計系統) */
:root{
  --cyan:#10e7f3; --blue:#4ab6ff; --cyan-lt:#86f8fe;
  --grad:linear-gradient(135deg,#4ab6ff 0%,#10e7f3 100%);
  --bg:#0d1522; --bg-2:#111c2e; --bg-3:#16233a;
  --ink:#eef4fb; --ink-2:#a8b8cc; --ink-3:#6b7d94;
  --line:rgba(134,248,254,.12);
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(13,21,34,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:28px}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:1px}
.nav-logo img{width:38px;height:38px;border-radius:9px}
.nav-links{display:flex;gap:22px;margin-left:auto;align-items:center;font-size:14.5px}
.nav-links a{color:var(--ink-2);transition:color .2s}
.nav-links a:hover,.nav-links a.on{color:var(--cyan)}
.btn{display:inline-block;padding:11px 26px;border-radius:999px;background:var(--grad);color:#04121a;font-weight:700;font-size:15px;letter-spacing:.5px;transition:transform .15s,box-shadow .2s;box-shadow:0 4px 18px rgba(16,231,243,.25)}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(16,231,243,.35)}
.btn.ghost{background:transparent;color:var(--cyan);border:1.5px solid rgba(16,231,243,.5);box-shadow:none}
.btn.ghost:hover{background:rgba(16,231,243,.08)}
.btn.sm{padding:8px 18px;font-size:13.5px}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--ink);padding:8px 14px;border-radius:8px;font-size:14px}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url(hero.webp) center 30%/cover no-repeat;opacity:.42}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,21,34,.25) 0%,rgba(13,21,34,.72) 62%,var(--bg) 100%)}
.hero-in{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:96px 24px}
.overline{font-size:13px;letter-spacing:3px;color:var(--cyan);font-weight:700;text-transform:uppercase;margin-bottom:18px}
.hero h1{font-size:clamp(34px,5.2vw,58px);font-weight:900;line-height:1.28;letter-spacing:1px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{margin:22px 0 34px;font-size:clamp(16px,1.6vw,19px);color:var(--ink-2);max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Sections ---------- */
section{padding:88px 0}
.sec-head{text-align:center;margin-bottom:52px}
.kicker{font-size:12.5px;letter-spacing:3px;color:var(--cyan);font-weight:700;text-transform:uppercase}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:900;margin-top:10px;letter-spacing:1px}
.sec-head p{color:var(--ink-2);margin-top:14px;max-width:640px;margin-left:auto;margin-right:auto}
.alt{background:var(--bg-2)}

/* ---------- Cards ---------- */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--bg-3);border:1px solid var(--line);border-radius:18px;padding:30px;transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-4px);border-color:rgba(16,231,243,.35)}
.card h3{font-size:19px;font-weight:800;margin:14px 0 10px}
.card p{color:var(--ink-2);font-size:14.5px}
.card ul{list-style:none;margin-top:12px}
.card li{color:var(--ink-2);font-size:14.5px;padding-left:20px;position:relative;margin-bottom:6px}
.card li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;background:var(--grad)}
.ic{width:52px;height:52px;object-fit:contain;filter:drop-shadow(0 0 12px rgba(16,231,243,.2))}
.card .more{display:inline-block;margin-top:14px;color:var(--cyan);font-size:14px;font-weight:700}
.card .more::after{content:" →"}

/* 分流雙卡 */
.fork{position:relative;border-radius:22px;overflow:hidden;padding:44px 36px;border:1px solid var(--line);background:var(--bg-3);display:flex;flex-direction:column;gap:10px;transition:transform .2s,border-color .2s}
.fork:hover{transform:translateY(-5px);border-color:rgba(16,231,243,.45)}
.fork .tag{font-size:12px;letter-spacing:2.5px;color:var(--cyan);font-weight:700}
.fork h3{font-size:26px;font-weight:900}
.fork p{color:var(--ink-2);font-size:15px;margin-bottom:14px}
.fork .btn{align-self:flex-start}

/* ---------- Logo 牆 ---------- */
.logos{background:#f5f9fd;padding:56px 0}
.logos h2{text-align:center;color:#31465e;font-size:15px;font-weight:700;letter-spacing:1.5px;margin-bottom:36px}
.logo-grid{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(6,1fr);gap:34px 28px;align-items:center;justify-items:center}
.logo-grid img{max-height:40px;max-width:130px;object-fit:contain;opacity:.82}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat b{display:block;font-size:clamp(34px,4.4vw,52px);font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--ink-2);font-size:14.5px;letter-spacing:1px}

/* ---------- 見證 ---------- */
.quote{background:var(--bg-3);border:1px solid var(--line);border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:14px}
.quote .q-mark{font-size:34px;font-weight:900;color:var(--cyan);line-height:1;font-family:Georgia,serif}
.quote .q-title{font-weight:800;font-size:15.5px}
.quote p{color:var(--ink-2);font-size:14.5px;flex:1}
.quote footer{color:var(--cyan);font-size:13.5px;font-weight:700;letter-spacing:.5px}

/* ---------- 案例 / 媒體卡 ---------- */
.case{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--bg-3);transition:transform .2s,border-color .2s}
.case:hover{transform:translateY(-4px);border-color:rgba(16,231,243,.4)}
.case .cover{aspect-ratio:16/9;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:900;color:#04121a;font-size:20px;letter-spacing:1px;overflow:hidden}
.case .cover img{width:100%;height:100%;object-fit:cover}
.case .body{padding:22px 24px 26px}
.case .tag{font-size:12px;color:var(--cyan);letter-spacing:2px;font-weight:700}
.case h3{font-size:18.5px;font-weight:800;margin:8px 0 8px}
.case p{color:var(--ink-2);font-size:14px}

/* ---------- 表單 ---------- */
.form-box{max-width:640px;margin:0 auto;background:var(--bg-3);border:1px solid var(--line);border-radius:22px;padding:42px}
.form-box .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.f{margin-bottom:16px}
.f label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:7px;font-weight:700}
.f label b{color:var(--cyan)}
.f input,.f textarea,.f select{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--ink);font-size:15px;font-family:inherit}
.f input:focus,.f textarea:focus{outline:none;border-color:var(--cyan)}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:14px;text-align:center}

/* ---------- CTA 帶 ---------- */
.cta-band{background:var(--grad);border-radius:26px;padding:56px 48px;text-align:center;color:#04121a}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:1px}
.cta-band p{margin:12px 0 26px;font-weight:500}
.cta-band .btn{background:#0d1522;color:#fff}

/* ---------- Footer ---------- */
footer.site{background:#0a111c;border-top:1px solid var(--line);padding:56px 0 34px;margin-top:40px}
.foot{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px}
.foot h4{font-size:13.5px;letter-spacing:2px;color:var(--ink-3);margin-bottom:16px;font-weight:700}
.foot a,.foot p{display:block;color:var(--ink-2);font-size:14.5px;margin-bottom:9px}
.foot a:hover{color:var(--cyan)}
.foot .flogo{width:150px;margin-bottom:14px}
.copyright{text-align:center;color:var(--ink-3);font-size:13px;margin-top:44px;padding:0 24px}

/* ---------- IG grid ---------- */
.ig-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ig-grid a{border-radius:14px;overflow:hidden;border:1px solid var(--line);transition:transform .2s}
.ig-grid a:hover{transform:scale(1.02)}

/* ---------- 步驟 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{background:var(--bg-3);border:1px solid var(--line);border-radius:16px;padding:26px;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-size:30px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;margin-bottom:10px}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.step p{color:var(--ink-2);font-size:14px}

/* ---------- RWD ---------- */
@media(max-width:920px){
  .g3,.g4,.stats,.steps{grid-template-columns:repeat(2,1fr)}
  .logo-grid{grid-template-columns:repeat(4,1fr)}
  .foot{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:100%;left:0;right:0;background:var(--bg-2);flex-direction:column;padding:20px 24px;border-bottom:1px solid var(--line);gap:16px}
  .menu-btn{display:block}
}
@media(max-width:600px){
  .g2,.g3,.g4,.form-box .row,.ig-grid{grid-template-columns:1fr}
  .stats,.steps{grid-template-columns:1fr 1fr}
  .logo-grid{grid-template-columns:repeat(3,1fr);gap:24px 18px}
  .foot{grid-template-columns:1fr}
  section{padding:60px 0}
  .hero{min-height:64vh}
  .ig-grid{grid-template-columns:1fr 1fr}
}