:root {
  --ink: #16161a;
  --ink-2: #1f1f26;
  --charcoal: #2a2a31;
  --crimson: #c1121f;
  --crimson-soft: #e23b46;
  --gold: #e8b339;
  --gold-soft: #f3cd6b;
  --cream: #f7f3ec;
  --paper: #fbf8f2;
  --muted: #8a8a93;
  --line: rgba(255, 255, 255, 0.12);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --maxw: 1180px;
  --serif: "Noto Serif TC", "Songti TC", "STSong", serif;
  --sans: "Noto Sans TC", "PingFang HK", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px;
  transition: background .35s ease, padding .35s ease, box-shadow .35s ease;
}
.nav.scrolled {
  background: rgba(22, 22, 26, 0.92);
  backdrop-filter: blur(10px);
  padding: 12px 32px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}
.brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.brand .logo {
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  background: transparent;
}
.brand .logo img { width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 2px 8px rgba(0,0,0,.4)); }
.brand .name { font-family: var(--serif); font-weight: 700; font-size: 18px; letter-spacing: .5px; }
.brand .name small { display: block; font-family: var(--sans); font-weight: 400; font-size: 11px; color: var(--gold-soft); letter-spacing: 2px; }

.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { color: #fff; font-size: 15px; position: relative; opacity: .9; transition: opacity .2s; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--gold); transition: width .25s ease;
}
.nav-links a:hover { opacity: 1; }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  background: var(--crimson); color: #fff !important; padding: 9px 18px; border-radius: 999px;
  font-weight: 600; transition: transform .2s, background .2s;
}
.nav-cta:hover { background: var(--crimson-soft); transform: translateY(-1px); }
.nav-cta::after { display: none; }

.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: 0; }
.burger span { width: 26px; height: 2px; background: #fff; transition: .3s; }

/* ---------- Language switcher ---------- */
.nav-right { display: flex; align-items: center; gap: 14px; }
.lang { display: flex; gap: 6px; }
.lang a {
  color: #fff; font-size: 13px; padding: 5px 12px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,.35); opacity: .85; transition: .2s;
}
.lang a:hover { opacity: 1; border-color: var(--gold); }
.lang a.active { background: var(--gold); border-color: var(--gold); color: #16161a; font-weight: 700; opacity: 1; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 60px;
  color: #fff; overflow: hidden;
  background: radial-gradient(120% 120% at 70% 20%, #2a1114 0%, #16161a 55%, #0c0c0f 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(180deg, rgba(12,12,15,.45) 0%, rgba(12,12,15,.15) 40%, rgba(12,12,15,.85) 100%);
}
.hero .wrap { position: relative; z-index: 3; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: 3px; color: var(--gold-soft);
  border: 1px solid rgba(232,179,57,.4); padding: 7px 16px; border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 700; line-height: 1.15;
  font-size: clamp(38px, 6vw, 76px); letter-spacing: 1px;
  text-shadow: 0 6px 30px rgba(0,0,0,.5);
}
.hero h1 .accent { color: var(--gold); }
.hero .lead {
  max-width: 560px; margin: 24px 0 36px; font-size: clamp(16px, 2vw, 19px);
  color: rgba(255,255,255,.86);
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 999px; font-weight: 600; font-size: 15px;
  transition: transform .2s, box-shadow .2s, background .2s; cursor: pointer; border: 0;
}
.btn-primary { background: var(--crimson); color: #fff; box-shadow: 0 10px 30px rgba(193,18,31,.45); }
.btn-primary:hover { transform: translateY(-2px); background: var(--crimson-soft); }
.btn-ghost { background: rgba(255,255,255,.08); color: #fff; border: 1px solid rgba(255,255,255,.3); }
.btn-ghost:hover { background: rgba(255,255,255,.16); transform: translateY(-2px); }

.scroll-ind {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); z-index: 3;
  color: rgba(255,255,255,.6); font-size: 12px; letter-spacing: 2px; text-align: center;
}
.scroll-ind .mouse {
  width: 22px; height: 36px; border: 2px solid rgba(255,255,255,.5); border-radius: 12px;
  margin: 0 auto 8px; position: relative;
}
.scroll-ind .mouse::after {
  content: ""; position: absolute; top: 7px; left: 50%; transform: translateX(-50%);
  width: 3px; height: 7px; background: var(--gold); border-radius: 2px; animation: scroll 1.6s infinite;
}
@keyframes scroll { 0% { opacity: 0; top: 7px; } 40% { opacity: 1; } 100% { opacity: 0; top: 18px; } }

/* ---------- Section base ---------- */
section { padding: 96px 0; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-tag { color: var(--crimson); font-weight: 700; letter-spacing: 4px; font-size: 13px; text-transform: uppercase; }
.sec-head h2 { font-family: var(--serif); font-size: clamp(28px, 4vw, 44px); margin: 12px 0 14px; color: var(--ink); }
.sec-head p { color: var(--muted); font-size: 17px; }

/* ---------- About ---------- */
.about { background: var(--paper); }
.about-text { max-width: 860px; margin: 0 auto; text-align: center; }
.about-text p { font-size: 17px; color: #3a3a42; margin-bottom: 18px; }
.about-text .hl { color: var(--crimson); font-weight: 600; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }

/* ---------- Origin 本會介紹 ---------- */
.origin { background: #fff; }
.origin-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 44px; align-items: stretch; }
.origin-story { background: var(--paper); border: 1px solid #ece6da; border-radius: var(--radius); padding: 34px 32px; }
.origin-story h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 16px; color: var(--ink); }
.origin-story p { font-size: 16.5px; color: #3a3a42; margin-bottom: 14px; }
.origin-story .hl { color: var(--crimson); font-weight: 600; }
.founder {
  background: var(--ink); color: #fff; border-radius: var(--radius); padding: 32px 28px;
  box-shadow: var(--shadow); display: flex; flex-direction: column; justify-content: center;
}
.founder-avatar {
  width: 74px; height: 74px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--crimson), var(--gold));
  font-family: var(--serif); font-size: 34px; font-weight: 700; margin-bottom: 18px;
}
.founder h4 { font-family: var(--serif); font-size: 22px; }
.founder h4 span { font-size: 13px; color: var(--gold-soft); font-weight: 400; margin-left: 6px; }
.founder .role { color: var(--gold); font-size: 14px; letter-spacing: 1px; margin: 6px 0 16px; }
.founder ul { list-style: none; }
.founder li { font-size: 14.5px; color: rgba(255,255,255,.82); padding: 8px 0 8px 20px; position: relative; border-bottom: 1px solid var(--line); }
.founder li:last-child { border-bottom: 0; }
.founder li::before { content: "◆"; position: absolute; left: 0; color: var(--crimson-soft); font-size: 11px; top: 11px; }
.places { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 34px; }
.places span { border: 1px solid #e3dbc9; background: var(--paper); color: #4a4a52; padding: 8px 18px; border-radius: 999px; font-size: 14px; }

/* ---------- Instagram ---------- */
.ig { background: var(--ink); color: #fff; }
.ig .sec-head h2 { color: #fff; }
.ig .sec-head p { color: rgba(255,255,255,.7); }
.ig-box { max-width: 860px; margin: 0 auto; }
.ig-feed { width: 100%; border: 0; overflow: hidden; border-radius: var(--radius); min-height: 420px; }
.ig-empty {
  border: 1px dashed rgba(255,255,255,.3); border-radius: var(--radius);
  padding: 56px 30px; text-align: center;
}
.ig-empty .ig-icon { width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 18px; display: grid; place-items: center; background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.ig-empty .ig-icon svg { width: 32px; height: 32px; color: #fff; }
.ig-empty p { color: rgba(255,255,255,.75); margin-bottom: 22px; font-size: 16px; }

/* ---------- Videos ---------- */
.videos { background: var(--paper); }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.video-card { background: #fff; border: 1px solid #ece6da; border-radius: var(--radius); overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,.05); }
.video-wrap { position: relative; padding-bottom: 56.25%; height: 0; background: #eee; }
.video-wrap img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.play-btn {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 64px; height: 64px; border-radius: 50%; border: 0; cursor: pointer;
  background: rgba(193, 18, 31, .92); color: #fff; font-size: 20px; padding-left: 5px;
  display: grid; place-items: center;
  box-shadow: 0 10px 30px rgba(0,0,0,.35); transition: transform .2s, background .2s;
}
.play-btn:hover { transform: translate(-50%, -50%) scale(1.12); background: var(--crimson-soft); }
.video-foot { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; font-size: 14px; color: var(--muted); }
.video-foot a { color: var(--crimson); font-weight: 600; }
.video-foot a:hover { text-decoration: underline; }
.stat {
  background: var(--ink); color: #fff; border-radius: var(--radius); padding: 26px 22px;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.stat::before {
  content: ""; position: absolute; top: -30px; right: -30px; width: 90px; height: 90px;
  background: radial-gradient(circle, var(--crimson), transparent 70%); opacity: .5;
}
.stat .num { font-family: var(--serif); font-size: 42px; font-weight: 700; color: var(--gold); line-height: 1; }
.stat .lbl { font-size: 14px; color: rgba(255,255,255,.75); margin-top: 8px; }

/* ---------- Martial art intro ---------- */
.ma { background: var(--ink); color: #fff; }
.ma .sec-head h2 { color: #fff; }
.ma .sec-head p { color: rgba(255,255,255,.7); }
.ma-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: center; }
.ma-visual {
  aspect-ratio: 4/5; border-radius: var(--radius); position: relative; overflow: hidden;
  background: linear-gradient(135deg, #2a1114, #1a1a1f); border: 1px solid var(--line);
  display: grid; place-items: center;
}
.ma-visual .ring {
  width: 62%; aspect-ratio: 1; border-radius: 50%;
  border: 2px dashed rgba(232,179,57,.5);
  display: grid; place-items: center; position: relative;
  animation: spin 26s linear infinite;
}
.ma-visual .ring::before { content: "武"; font-family: var(--serif); font-size: 96px; color: var(--gold); position: absolute; animation: spin 26s linear infinite reverse; }
.ma-visual .pulse { position: absolute; width: 16px; height: 16px; border-radius: 50%; background: var(--crimson); box-shadow: 0 0 24px var(--crimson); }
@keyframes spin { to { transform: rotate(360deg); } }
.ma-text h3 { font-family: var(--serif); font-size: 26px; margin-bottom: 16px; color: var(--gold-soft); }
.ma-text p { color: rgba(255,255,255,.82); font-size: 17px; margin-bottom: 16px; }
.ma-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.ma-tags span { border: 1px solid var(--line); padding: 8px 16px; border-radius: 999px; font-size: 14px; color: rgba(255,255,255,.85); }

/* ---------- Activities ---------- */
.acts { background: var(--paper); }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card {
  background: #fff; border-radius: var(--radius); padding: 30px 24px;
  border: 1px solid #ece6da; box-shadow: 0 10px 30px rgba(0,0,0,.05);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 20px 44px rgba(193,18,31,.12); border-color: var(--gold); }
.card .ic {
  width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--crimson), #8c0d16); color: #fff; margin-bottom: 18px;
}
.card .ic svg { width: 28px; height: 28px; }
.card h3 { font-family: var(--serif); font-size: 20px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }

/* ---------- Mission / inclusion ---------- */
.mission { background: linear-gradient(135deg, #1a1a1f, #2a1114); color: #fff; text-align: center; position: relative; overflow: hidden; }
.mission .quote { font-family: var(--serif); font-size: clamp(24px, 3.4vw, 40px); line-height: 1.5; max-width: 860px; margin: 0 auto; color: #fff; }
.mission .quote .accent { color: var(--gold); }
.mission .by { margin-top: 26px; color: var(--gold-soft); letter-spacing: 2px; font-size: 14px; }
.mission .symbols { display: flex; justify-content: center; gap: 40px; margin-top: 46px; flex-wrap: wrap; }
.mission .sym { text-align: center; }
.mission .sym .big { font-family: var(--serif); font-size: 40px; color: var(--gold); }
.mission .sym .sm { font-size: 14px; color: rgba(255,255,255,.7); margin-top: 6px; }

/* ---------- Contact ---------- */
.contact { background: var(--paper); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 18px; }
.contact-info .row { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 18px; color: #3a3a42; }
.contact-info .row .ic { color: var(--crimson); flex: 0 0 auto; margin-top: 3px; }
.contact-info .note { background: #fff7e6; border: 1px solid #f0d9a0; color: #6b5418; padding: 14px 16px; border-radius: 12px; font-size: 14px; margin-top: 10px; }
.form { background: #fff; border-radius: var(--radius); padding: 30px; box-shadow: 0 14px 40px rgba(0,0,0,.06); border: 1px solid #ece6da; }
.form label { display: block; font-size: 14px; font-weight: 600; margin: 0 0 6px; color: #3a3a42; }
.form input, .form textarea {
  width: 100%; padding: 12px 14px; border: 1px solid #ddd6c8; border-radius: 10px;
  font-family: var(--sans); font-size: 15px; margin-bottom: 16px; background: #fcfaf5; color: var(--ink);
  transition: border-color .2s, box-shadow .2s;
}
.form input:focus, .form textarea:focus { outline: 0; border-color: var(--crimson); box-shadow: 0 0 0 3px rgba(193,18,31,.12); }
.form textarea { resize: vertical; min-height: 110px; }
.form .btn-primary { width: 100%; justify-content: center; }
.form .ok { display: none; background: #e8f6ec; border: 1px solid #b6e2c4; color: #1d6b3a; padding: 12px; border-radius: 10px; margin-top: 10px; font-size: 14px; }
.form.sent .ok { display: block; }

/* ---------- Footer ---------- */
footer { background: var(--ink); color: rgba(255,255,255,.7); padding: 56px 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.foot-brand .foot-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.foot-brand .foot-logo img { width: 48px; height: 48px; object-fit: contain; }
.foot-brand .foot-name { font-family: var(--serif); font-weight: 700; color: #fff; font-size: 17px; }
.foot-brand p { font-size: 14px; max-width: 320px; }
.foot-col h4 { color: #fff; font-family: var(--serif); font-size: 17px; margin-bottom: 14px; }
.foot-col a { display: block; font-size: 14px; margin-bottom: 9px; opacity: .8; transition: opacity .2s, color .2s; }
.foot-col a:hover { opacity: 1; color: var(--gold-soft); }
.foot-bottom { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; }
.reveal.d2 { transition-delay: .2s; }
.reveal.d3 { transition-delay: .3s; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .nav { padding: 14px 20px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 13.5px; }
  .brand .name { font-size: 15px; }
  .brand .name small { font-size: 9px; letter-spacing: 1px; }
}
@media (max-width: 920px) {
  .origin-grid, .ma-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .video-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links {
    position: fixed; inset: 64px 16px auto 16px; flex-direction: column; gap: 4px;
    background: rgba(22,22,26,.97); border: 1px solid var(--line); border-radius: 16px; padding: 18px;
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .3s;
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 10px 4px; }
  .nav-cta { text-align: center; }
  .burger { display: flex; }
  section { padding: 68px 0; }
  .cards { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
}