/* ── 小本奔 Landing Page ── */

:root {
  --orange: #E3752D;
  --orange-dark: #c4601e;
  --cream: #FFF0CA;
  --cream-dark: #f5e4b0;
  --text-dark: #2a1a0e;
  --text-mid: #5a3a1e;
  --font: 'Noto Sans TC', 'Microsoft JhengHei', '黑體-繁', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text-dark); background: var(--cream); overflow-x: hidden; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 48px; background: var(--orange);
}
.nav-logo { display: flex; align-items: center; text-decoration: none; }
.nav-logo img { height: 36px; width: auto; display: block; }
.nav-cta {
  border: 2px solid var(--cream); color: var(--cream); background: transparent;
  padding: 9px 22px; font-size: .9rem; font-weight: 700; letter-spacing: .08em;
  text-decoration: none; transition: background .2s, color .2s;
}
.nav-cta:hover { background: var(--cream); color: var(--orange); }

/* ── SHARED ── */
.section-label { font-size: .75rem; letter-spacing: .2em; font-weight: 300; margin-bottom: 24px; opacity: .7; }
h1, h2, h3 { font-weight: 700; line-height: 1.3; }

/* ── § 1  HERO ── */
#hero {
  background: url('photo1.jpg') center 35% / cover no-repeat var(--orange);
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 140px 80px 80px; overflow: hidden; position: relative;
}
#hero::before {
  content: ''; position: absolute; inset: 0;
  background: rgba(227,117,45,0.55);
  pointer-events: none;
}
.hero-tag {
  display: inline-flex; align-items: center;
  border: 1px solid rgba(255,255,255,.5); color: rgba(255,255,255,.85);
  font-size: .78rem; letter-spacing: .15em; padding: 6px 16px;
  margin-bottom: 48px; width: fit-content;
}
.hero-tag span { margin: 0 8px; opacity: .5; }
.hero-h1 { font-size: clamp(1.6rem,4vw,4.2rem); color: var(--cream); margin-bottom: 32px; position: relative; z-index: 1; }
.hero-body { color: rgba(255,255,255,.88); font-size: 1.05rem; font-weight: 300; line-height: 1.9; margin-bottom: 40px; position: relative; z-index: 1; }
.hero-location { color: rgba(255,255,255,.6); font-size: .82rem; letter-spacing: .12em; margin-bottom: 32px; }
.hero-links { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-link {
  border: 1px solid rgba(255,255,255,.5); color: rgba(255,255,255,.85);
  font-size: .8rem; letter-spacing: .1em; padding: 8px 18px;
  text-decoration: none; transition: background .2s, color .2s;
}
.hero-link:hover { background: rgba(255,255,255,.15); }
.hero-scroll { display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,.7); font-size: .82rem; letter-spacing: .15em; }
.hero-scroll::before { content: ''; display: block; width: 40px; height: 1px; background: rgba(255,255,255,.5); }

/* ── § 2  品牌理念 ── */
#belief { background: var(--cream); padding: 120px 80px; }
.belief-inner { max-width: 1100px; margin: 0 auto; }
.belief-header { margin-bottom: 64px; text-align: center; }
.belief-header .section-label { color: var(--orange); }
.belief-h2 { font-size: clamp(2rem,4vw,3.6rem); color: var(--text-dark); }

.belief-carousel { position: relative; overflow: hidden; max-width: 480px; margin: 0 auto; }
.belief-track { display: flex; transition: transform .4s ease; }
.belief-slide { min-width: 100%; }
.belief-slide img { width: 100%; display: block; border-radius: 4px; }
.belief-dots { display: flex; justify-content: center; gap: 8px; margin-top: 20px; }
.belief-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(227,117,45,.3); cursor: pointer; transition: background .2s; }
.belief-dot.active { background: var(--orange); }

/* ── § 3  三階段 ── */
#phases { background: var(--orange); padding: 120px 80px; }
.phases-inner { max-width: 1100px; margin: 0 auto; }
.phases-header { margin-bottom: 64px; }
.phases-header .section-label { color: rgba(255,255,255,.7); }
.phases-h2 { font-size: clamp(2rem,3.5vw,2.8rem); color: var(--cream); }
.phases-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.phase-card { display: flex; flex-direction: column; }
.phase-img {
  width: 100%; aspect-ratio: 1; background: rgba(255,255,255,.12);
  display: flex; align-items: center; justify-content: center; margin-bottom: 24px; overflow: hidden;
}
.phase-img img { width: 100%; height: 100%; object-fit: cover; }
.phase-num { font-size: 2.2rem; font-weight: 900; color: rgba(255,255,255,.3); line-height: 1; margin-bottom: 8px; }
.phase-title { font-weight: 700; font-size: 1.05rem; color: var(--cream); margin-bottom: 12px; letter-spacing: .05em; }
.phase-desc { color: rgba(255,255,255,.8); font-size: .88rem; line-height: 1.8; margin-bottom: 16px; }
.phase-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.phase-tag { border: 1px solid rgba(255,255,255,.35); color: rgba(255,255,255,.7); font-size: .72rem; padding: 3px 10px; letter-spacing: .08em; }

/* ── § 4  課表框架 ── */
#framework { background: var(--cream); padding: 120px 80px; text-align: center; }
.framework-inner { max-width: 1200px; margin: 0 auto; }
.framework-inner .section-label { color: var(--orange); }
.framework-h2 { font-size: clamp(1.8rem,3vw,2.6rem); color: var(--text-dark); margin-bottom: 20px; }
.framework-sub { color: var(--text-mid); font-size: .95rem; line-height: 1.8; margin-bottom: 56px; }
#framework iframe { width: 100%; height: 1100px; border: none; display: block; }

/* ── § 5  修業證書 + 學生見證 ── */
#graduates { background: var(--orange); padding: 120px 80px; }
.graduates-inner { max-width: 1100px; margin: 0 auto; }
.graduates-inner .section-label { color: rgba(255,255,255,.7); }
.graduates-h2 { font-size: clamp(2rem,3.5vw,2.8rem); color: var(--cream); margin-bottom: 64px; }

.cert-block {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; margin-bottom: 80px; padding-bottom: 80px;
  border-bottom: 1px solid rgba(255,255,255,.2);
}
.cert-visual { background: var(--cream); border-radius: 4px; padding: 32px; }
.cert-inner {
  background: var(--orange); border-radius: 4px; padding: 32px;
  text-align: center; position: relative; overflow: hidden;
}
.cert-inner::before { content: '✦'; position: absolute; top: 12px; left: 12px; font-size: 1rem; color: rgba(255,255,255,.5); }
.cert-inner::after  { content: '✦'; position: absolute; bottom: 12px; right: 12px; font-size: 1rem; color: rgba(255,255,255,.5); }
.cert-title { font-weight: 900; font-size: 1.5rem; color: var(--cream); margin-bottom: 16px; letter-spacing: .2em; }
.cert-name  { font-weight: 900; font-size: 2rem; color: var(--cream); margin-bottom: 20px; }
.cert-poem  { color: rgba(255,255,255,.85); font-size: .9rem; line-height: 2; margin-bottom: 24px; }
.cert-footer { display: flex; justify-content: space-between; align-items: flex-end; font-size: .75rem; color: rgba(255,255,255,.7); }
.cert-emoji { font-size: 1.4rem; margin-bottom: 16px; }
.cert-headline { font-weight: 700; font-size: 1.7rem; color: var(--cream); margin-bottom: 20px; line-height: 1.5; }
.cert-highlight { color: var(--cream); font-weight: 700; }
.cert-body { color: rgba(255,255,255,.82); font-size: .9rem; line-height: 1.9; margin-bottom: 12px; }
.cert-note { color: rgba(255,255,255,.55); font-size: .78rem; font-style: italic; line-height: 1.7; }

.students-label { color: rgba(255,255,255,.7); font-size: .75rem; letter-spacing: .2em; margin-bottom: 16px; }
.students-h3 { font-weight: 900; font-size: 1.8rem; color: var(--cream); margin-bottom: 40px; }
.students-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.student-card { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); padding: 28px 24px; transition: background .2s; }
.student-card:hover { background: rgba(255,255,255,.13); }
.student-card.featured { background: rgba(255,255,255,.15); }
.student-meta { font-size: .75rem; color: rgba(255,255,255,.55); letter-spacing: .1em; margin-bottom: 12px; }
.student-quote { color: rgba(255,255,255,.75); font-size: .9rem; line-height: 1.7; font-style: italic; }
.student-name { margin-top: 16px; font-weight: 700; color: var(--cream); font-size: .88rem; }

/* ── § 6  關於教練 + CTA ── */
#coach { background: var(--cream); padding: 120px 80px; }
.coach-inner { max-width: 680px; margin: 0 auto; text-align: center; }
.coach-content .section-label { color: var(--orange); }
.coach-h2 { font-size: clamp(1.8rem,2.8vw,2.4rem); color: var(--text-dark); margin-bottom: 24px; }
.coach-body { color: var(--text-mid); font-size: .95rem; line-height: 1.9; margin-bottom: 32px; }
.ig-carousel-link { display: block; text-decoration: none; margin-bottom: 32px; }
.ig-carousel { position: relative; overflow: hidden; border-radius: 4px; }
.ig-track { display: flex; transition: transform .4s ease; }
.ig-slide { min-width: 100%; }
.ig-slide img { width: 100%; display: block; }
.ig-dots { display: flex; justify-content: center; gap: 8px; margin-top: 12px; }
.ig-dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(227,117,45,.3); cursor: pointer; transition: background .2s; }
.ig-dot.active { background: var(--orange); }
.cta-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: transparent; padding: 0;
  text-decoration: none; border: none; cursor: pointer;
  transition: opacity .2s, transform .15s;
}
.cta-btn:hover { opacity: .85; transform: translateY(-2px); }
.cta-line { margin-top: 20px; font-size: .8rem; color: rgba(90,58,30,.5); letter-spacing: .08em; }

/* ── FOOTER ── */
footer { background: var(--text-dark); color: rgba(255,255,255,.45); text-align: center; padding: 32px; font-size: .78rem; letter-spacing: .1em; line-height: 2; }

/* ── FADE IN ── */
.fade-in { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: .1s; }
.d2 { transition-delay: .2s; }
.d3 { transition-delay: .3s; }

/* ── MOBILE ── */
@media (max-width: 768px) {

  /* NAV */
  nav { padding: 14px 20px; }
  .nav-logo img { height: 28px; }
  .nav-cta { padding: 7px 14px; font-size: .8rem; }

  #hero { padding: 100px 24px 60px; min-height: 100svh; background-position: 65% 35%; }
  .hero-h1 { font-size: 1.7rem; margin-bottom: 20px; }
  .hero-body { font-size: .8rem; line-height: 1.8; }
  .hero-tag { font-size: .7rem; margin-bottom: 32px; }

  /* 品牌理念 */
  #belief { padding: 72px 24px; }
  .belief-h2 { font-size: 1.8rem; }
  .belief-cards { grid-template-columns: 1fr; gap: 16px; }
  .belief-card:nth-child(2),
  .belief-card:nth-child(3) { margin-top: 0; }
  .belief-card { aspect-ratio: 3/4; }

  /* 三階段 */
  #phases { padding: 72px 24px; }
  .phases-h2 { font-size: 1.7rem; }
  .phases-grid { grid-template-columns: 1fr; gap: 48px; }

  /* 課表框架 */
  #framework { padding: 72px 24px; }
  .framework-h2 { font-size: 1.6rem; }
  #framework iframe { height: 1100px; }

  /* 修業證書 + 見證 */
  #graduates { padding: 72px 24px; }
  .graduates-h2 { font-size: 1.7rem; margin-bottom: 40px; }
  .cert-block { grid-template-columns: 1fr; gap: 32px; }
  .students-grid { grid-template-columns: 1fr; gap: 16px; }
  .students-h3 { font-size: 1.5rem; }

  /* 關於教練 */
  #coach { padding: 72px 24px; }
  .coach-inner { grid-template-columns: 1fr; gap: 40px; }
  .reels-grid { grid-template-columns: repeat(3,1fr); gap: 4px; }
  .coach-h2 { font-size: 1.7rem; }
  .cta-btn { width: 100%; justify-content: center; }
}

/* ── 三階段手機輪播 ── */
.desktop-only { display: grid; }
.mobile-only { display: none; }

.phases-carousel { position: relative; overflow: hidden; }
.phases-track { display: flex; transition: transform .4s ease; }
.phases-track .phase-card { min-width: 100%; }
.phases-dots { display: flex; justify-content: center; gap: 8px; margin-top: 24px; }
.phases-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.3); cursor: pointer; transition: background .2s; }
.phases-dot.active { background: var(--cream); }

/* ── FAQ ── */
.faq-wrap { width: 100%; margin-bottom: 40px; text-align: left; }
.faq-title { font-size: 1.1rem; font-weight: 700; color: var(--text-dark); margin-bottom: 16px; }
.faq-list { border-top: 1px solid rgba(90,58,30,.15); }
.faq-item { border-bottom: 1px solid rgba(90,58,30,.15); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 18px 4px; background: none; border: none; cursor: pointer;
  font-family: var(--font); font-size: .95rem; font-weight: 500;
  color: var(--text-dark); text-align: left; gap: 12px;
}
.faq-arrow { font-size: .85rem; color: var(--orange); transition: transform .3s; flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  font-size: .88rem; color: var(--orange); line-height: 1.8; padding: 0 4px;
}
.faq-a a { color: var(--orange); text-decoration: underline; }
.faq-item.open .faq-a { max-height: 400px; padding: 0 4px 18px; }

@media (max-width: 768px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: block; }
}