:root{
  --bg:#071019;
  --bg-soft:#0c1724;
  --card:#101b2b;
  --line:#1f2c3e;
  --text:#edf3f8;
  --muted:#9fb0c3;
  --accent:#82d2b4;
  --accent2:#d3b66f;
  --radius:22px;
}

*{
  box-sizing:border-box;
}

html,body{
  margin:0;
  padding:0;
}

body{
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
  "Segoe UI", Roboto, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;

  color:var(--text);

  background:
  radial-gradient(1200px 500px at 0% 0%, rgba(130,210,180,.10), transparent 60%),
  radial-gradient(1000px 460px at 100% 10%, rgba(211,182,111,.10), transparent 60%),
  linear-gradient(180deg, #071019 0%, #040a10 100%);

  line-height:1.6;
}

a{
  text-decoration:none;
  color:inherit;
}

/* PAGE */

.page-shell{
  max-width:1180px;
  margin:0 auto;
  padding:28px 20px 80px;
}

/* NAVBAR */

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;

  padding:16px 18px;

  border:1px solid var(--line);
  border-radius:999px;

  background:rgba(8,15,25,.72);
  backdrop-filter:blur(10px);
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
}

.brand-mark{
  width:46px;
  height:46px;

  border-radius:14px;

  display:grid;
  place-items:center;

  font-weight:800;
  color:#071019;

  background:linear-gradient(
    135deg,
    rgba(211,182,111,.95),
    rgba(130,210,180,.9)
  );
}

.brand-title{
  font-size:18px;
  font-weight:800;
}

.brand-sub{
  font-size:13px;
  color:var(--muted);
}

.topnav{
  display:flex;
  gap:16px;
  align-items:center;
}

.topnav a{
  font-size:14px;
  color:var(--muted);
}

.topnav a.active{
  color:var(--text);
}

/* HERO */

.hero{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:24px;

  padding:70px 4px 26px;
}

.eyebrow{
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  margin-bottom:12px;
}

.hero h1{
  margin:0 0 18px;

  font-size:58px;
  line-height:1.02;
}

.lead{
  font-size:20px;
  color:var(--muted);
}

.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;

  margin-top:24px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;

  padding:12px 18px;

  border-radius:12px;
  border:1px solid var(--line);

  background:rgba(255,255,255,.03);

  font-weight:600;
}

.btn:hover{
  background:rgba(255,255,255,.05);
}

.btn-primary{
  background:linear-gradient(
    135deg,
    rgba(130,210,180,.16),
    rgba(211,182,111,.12)
  );

  border-color:rgba(130,210,180,.24);
}

/* HERO SIDE PANEL */

.hero-panel{
  display:flex;
}

.panel-card{
  width:100%;

  padding:26px;

  border-radius:var(--radius);
  border:1px solid var(--line);

  background:rgba(17,27,43,.92);
}

.panel-label{
  font-size:12px;
  font-weight:700;

  color:var(--accent);
  margin-bottom:10px;
}

.panel-title{
  font-size:26px;
  font-weight:800;

  margin-bottom:10px;
}

.panel-card p{
  margin:0;
  color:var(--muted);
}

/* FEATURES */

.section-grid{
  margin-top:20px;

  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}

.feature-card{
  padding:22px;

  border-radius:var(--radius);
  border:1px solid var(--line);

  background:rgba(12,22,35,.72);
}

.card-kicker{
  font-size:12px;
  font-weight:800;
  color:var(--accent2);

  margin-bottom:10px;
}

.feature-card h2{
  margin:0 0 10px;
  font-size:22px;
}

.feature-card p{
  margin:0;
  color:var(--muted);
}

.tag-row{
  margin-top:16px;

  display:flex;
  gap:8px;
  flex-wrap:wrap;
}

.tag{
  padding:6px 10px;

  border-radius:999px;
  border:1px solid var(--line);

  font-size:12px;
  color:var(--muted);

  background:rgba(255,255,255,.02);
}

/* LANGUAGE SECTION */

.language-section{
  margin-top:36px;

  padding:28px;

  border-radius:var(--radius);
  border:1px solid var(--line);

  background:rgba(10,18,29,.74);
}

.section-heading h2{
  margin:0 0 10px;

  font-size:32px;
}

.section-heading p{
  margin:0;
  color:var(--muted);
}

.section-eyebrow{
  font-size:12px;
  font-weight:700;
  color:var(--accent);

  margin-bottom:10px;
}

.language-grid{
  margin-top:20px;

  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}

.language-card{
  display:block;

  padding:22px;

  border-radius:18px;
  border:1px solid var(--line);

  background:rgba(255,255,255,.02);
}

.language-card:hover{
  background:rgba(255,255,255,.04);
}

.lang-label{
  width:40px;
  height:40px;

  border-radius:999px;

  display:grid;
  place-items:center;

  font-size:13px;
  font-weight:800;

  border:1px solid var(--line);

  margin-bottom:12px;
}

.language-card h3{
  margin:0 0 6px;
}

.language-card p{
  margin:0;
  color:var(--muted);
}

/* FOOTER */

.site-footer{
  margin-top:60px;

  padding-top:16px;

  border-top:1px solid var(--line);

  display:flex;
  justify-content:space-between;

  font-size:13px;
  color:var(--muted);
}

/* MOBILE */

@media (max-width:1024px){

.hero{
grid-template-columns:1fr;
}

.section-grid{
grid-template-columns:1fr;
}

}

@media (max-width:760px){

.page-shell{
padding:20px 14px 60px;
}

.topbar{
flex-direction:column;
align-items:flex-start;
border-radius:24px;
}

.hero h1{
font-size:40px;
}

.lead{
font-size:17px;
}

.language-grid{
grid-template-columns:1fr;
}

}


/* ------------------------------------------------
   Redesign: HOYAO light minimal materials theme
   ------------------------------------------------ */

:root{
  --bg:#f5f6f8;
  --bg-soft:#ffffff;
  --card:#ffffff;
  --line:#e1e4ea;
  --line-strong:#c5cad6;
  --text:#111827;
  --muted:#6b7280;
  --accent:#3aa39a;
  --accent2:#111827;
  --radius:18px;
  --shadow-soft:0 22px 60px rgba(15,23,42,.08);
  --shadow-subtle:0 10px 30px rgba(15,23,42,.04);
}

html,body{
  margin:0;
  padding:0;
}

body{
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
  "SF Pro Text", "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;

  color:var(--text);
  background:
    radial-gradient(900px 420px at 0% 0%, rgba(58,163,154,.08), transparent 60%),
    radial-gradient(900px 420px at 100% 0%, rgba(17,24,39,.06), transparent 60%),
    #f9fafb;

  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

.page-shell{
  max-width:1120px;
  margin:0 auto;
  padding:40px 24px 96px;
}

/* NAVBAR */

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;

  padding:18px 24px;

  border:1px solid var(--line);
  border-radius:999px;

  background-color:rgba(255,255,255,.92);
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow-subtle);
}

.brand{
  display:flex;
  align-items:center;
  gap:16px;
}

.brand-mark{
  width:44px;
  height:44px;
  border-radius:16px;

  display:grid;
  place-items:center;

  font-weight:700;
  font-size:18px;
  color:#0b1726;

  background:
    radial-gradient(circle at 0% 0%, rgba(58,163,154,.18), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(17,24,39,.14), transparent 55%),
    #ffffff;
  border:1px solid rgba(203,213,225,.8);
}

.brand-title{
  font-size:18px;
  font-weight:700;
  letter-spacing:.03em;
}

.brand-sub{
  font-size:12px;
  color:var(--muted);
}

.topnav{
  display:flex;
  gap:18px;
  align-items:center;
}

.topnav a{
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
  padding:4px 0;
  position:relative;
}

.topnav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-6px;
  height:2px;
  border-radius:999px;
  background-color:var(--accent);
  opacity:0;
  transform:scaleX(.4);
  transform-origin:center;
  transition:opacity .16s ease, transform .16s ease;
}

.topnav a:hover{
  color:var(--text);
}

.topnav a.active{
  color:var(--text);
}

.topnav a.active::after{
  opacity:1;
  transform:scaleX(1);
}

/* HERO */

.hero{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1.1fr);
  gap:40px;
  padding:72px 4px 36px;
  align-items:flex-start;
}

.eyebrow{
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:14px;
}

.hero h1{
  margin:0 0 20px;
  font-size:46px;
  line-height:1.08;
  letter-spacing:-.03em;
}

.lead{
  font-size:18px;
  color:var(--muted);
  max-width:36rem;
}

.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:28px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 20px;
  border-radius:999px;
  border:1px solid var(--line);
  background-color:#ffffff;
  font-weight:600;
  font-size:14px;
  color:var(--text);
  transition:background-color .16s ease, box-shadow .16s ease, transform .12s ease;
}

.btn:hover{
  background-color:#f3f4f6;
  box-shadow:0 8px 22px rgba(15,23,42,.08);
  transform:translateY(-1px);
}

.btn-primary{
  background:linear-gradient(135deg, #19b2a1, #63d8c6);
  border-color:transparent;
  color:#ffffff;
  box-shadow:0 14px 40px rgba(14,148,136,.32);
}

.btn-primary:hover{
  background:linear-gradient(135deg, #13a494, #4ecab8);
}

/* HERO SIDE PANEL */

.hero-panel{
  display:flex;
}

.panel-card{
  width:100%;
  padding:26px 24px 24px;
  border-radius:24px;
  border:1px solid var(--line);
  background-color:var(--bg-soft);
  box-shadow:var(--shadow-soft);
}

.panel-label{
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:10px;
}

.panel-title{
  font-size:22px;
  font-weight:600;
  margin-bottom:10px;
}

.panel-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}

/* FEATURES / GRID SECTIONS */

.section-grid{
  margin-top:48px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}

.feature-card{
  padding:22px 22px 20px;
  border-radius:24px;
  border:1px solid var(--line);
  background-color:var(--card);
  box-shadow:var(--shadow-subtle);
}

.card-kicker{
  font-size:11px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:10px;
}

.feature-card h2{
  margin:0 0 10px;
  font-size:20px;
  font-weight:600;
}

.feature-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}

.tag-row{
  margin-top:16px;
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}

.tag{
  padding:6px 11px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  background-color:#f9fafb;
}

/* LANGUAGE / SECONDARY SECTIONS */

.language-section{
  margin-top:54px;
  padding:28px 26px 26px;
  border-radius:26px;
  border:1px solid var(--line);
  background-color:var(--bg-soft);
  box-shadow:var(--shadow-subtle);
}

.section-heading h2{
  margin:0 0 10px;
  font-size:30px;
  font-weight:600;
}

.section-heading p{
  margin:0;
  color:var(--muted);
  font-size:15px;
  max-width:38rem;
}

.section-eyebrow{
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:10px;
}

.language-grid{
  margin-top:22px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}

.language-card{
  display:block;
  padding:22px 22px 20px;
  border-radius:22px;
  border:1px solid var(--line);
  background-color:#ffffff;
  transition:box-shadow .16s ease, transform .12s ease, border-color .16s ease, background-color .16s ease;
}

.language-card:hover{
  background-color:#f9fafb;
  border-color:var(--line-strong);
  box-shadow:var(--shadow-subtle);
  transform:translateY(-1px);
}

.lang-label{
  width:40px;
  height:40px;
  border-radius:999px;
  display:grid;
  place-items:center;
  font-size:13px;
  font-weight:700;
  border:1px solid var(--line);
  margin-bottom:12px;
}

.language-card h3{
  margin:0 0 6px;
  font-size:17px;
}

.language-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}

/* FOOTER */

.site-footer{
  margin-top:72px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:var(--muted);
}

/* RESPONSIVE REFINEMENTS */

@media (max-width:1024px){
  .hero{
    grid-template-columns:1fr;
    gap:32px;
    padding-top:56px;
  }

  .section-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (max-width:760px){
  .page-shell{
    padding:24px 16px 72px;
  }

  .topbar{
    flex-direction:column;
    align-items:flex-start;
    border-radius:28px;
    padding:16px 18px;
    gap:14px;
  }

  .hero h1{
    font-size:32px;
  }

  .lead{
    font-size:16px;
  }

  .section-grid{
    grid-template-columns:1fr;
    margin-top:32px;
  }

  .language-grid{
    grid-template-columns:1fr;
  }

  .site-footer{
    flex-direction:column;
  }
}