/* ===== 變數與全域設定 ===== */
:root {
  --bg: #0b1020;
  --card: #11172b;
  --muted: #c09ea6;
  --text: #c09eb1;
  --brand: #a19fda;
  --accent: #d7b2c7;
  --ring: #c09eb1;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", sans-serif;
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1100px, 92vw); margin-inline: auto; }

/* ===== 按鈕與徽章 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 1.2rem;
  border-radius: 14px;
  font-weight: 700;
  letter-spacing: .3px;
  background: linear-gradient(135deg, var(--brand), #d7b2c7);
  color: #081018;
  box-shadow: var(--shadow);
  border: none;
  cursor: pointer;
}
.btn.secondary {
  background: transparent;
  outline: 1px solid #2c385f;
  color: var(--text);
}
.badge {
  display: inline-block;
  padding: .35rem .6rem;
  border-radius: 999px;
  font-size: .8rem;
  background: rgba(255,255,255,.08);
  color: var(--brand);
  border: 1px solid rgba(255, 107, 230, 0.35);
}

/* ===== 導覽列 ===== */
header {
  position: sticky;
  top: 0;
  backdrop-filter: saturate(180%) blur(10px);
  background: rgba(11,16,32,.6);
  border-bottom: 1px solid rgba(255,255,255,.06);
  z-index: 20;
}
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .8rem 0;
}
.nav-links { display: flex; gap: 1.2rem; }
.nav-links a { opacity: .9; }
.mobile-toggle { display: none; }

/* ===== Hero 區塊 ===== */
.hero {
  padding: 4rem 0 3rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  margin: .5rem 0 1rem;
}
.hero p { color: var(--muted); font-size: 1.05rem; }
.hero .cta {
  display: flex;
  gap: 1rem;
  margin-top: 1.4rem;
  flex-wrap: wrap;
}
.stats {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1rem;
  margin-top: 1.8rem;
}
.stat {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px;
  padding: 1rem 1.2rem;
}
.stat b { font-size: 1.4rem; }


/* ===== 特色區塊 ===== */
.section { padding: 4rem 0; }
.section h2 {
  font-size: clamp(1.6rem,3.2vw,2.2rem);
  margin: 0 0 1rem;
}
.muted { color: var(--muted); }
.grid { display: grid; gap: 1.2rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
  }

.feature-card {
    position: relative;
    background-size: cover;
    background-position: center;
    border-radius: 16px;
    height: 320px;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  }

.card-text {
    background: rgba(255, 255, 255, 0.9); /* 半透明白底 */
    padding: 16px;
    border-radius: 12px 12px 0 0;
    width: 100%;
  }

.chip {
    display: inline-block;
    background: #d7b2c7;
    color: #fff;
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 999px;
    margin-bottom: 8px;
  }

  h3 {
    margin: 4px 0;
    font-size: 18px;
    color: #6d1e8a;
  }

  p {
    font-size: 14px;
    color: #374151;
  }

/* ===== 課綱區塊（新設計） ===== */
.syllabus {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 2rem;
  align-items: flex-start;
}

/* 左側課程說明卡片 */
.syllabus .card {
  padding: 1.5rem;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: var(--shadow);
}

/* 課程項目卡片化 */
.week {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.2rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.05);
  transition: transform .25s ease, box-shadow .25s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.week:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.2);
}

/* 左側課程類別徽章 */
.week .wk {
  min-width: 70px;
  padding: .4rem .6rem;
  font-weight: 700;
  font-size: .9rem;
  color: #fff;
  text-align: center;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  align-self: flex-start;
}

/* 課程標題與描述 */
.week b {
  font-size: 1.05rem;
  display: block;
  margin-bottom: .25rem;
  color: var(--text);
}

.week .muted {
  font-size: .9rem;
  line-height: 1.4;
  color: var(--muted);
}

/* 手機友善 */
@media (max-width: 768px) {
  .syllabus {
    grid-template-columns: 1fr;
  }
  .week {
    flex-direction: column;
    align-items: flex-start;
  }
  .week .wk {
    align-self: flex-start;
  }
}

/* ===== 講師區塊 ===== */
.instructor {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1rem;
  align-items: center;
}
.instructor img {
  width: 120px;
  border-radius: 10%;
  box-shadow: var(--shadow);
  align-self: center;
}

/* ===== 方案區塊 ===== */
.pricing {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1rem;
}
.price-card {
  padding: 1.2rem;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.1);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
}
.price {
  font-size: 2rem;
  font-weight: 800;
}
.price small {
  font-size: .9rem;
  color: var(--muted);
  font-weight: 600;
}
.highlight {
  outline: 2px solid var(--brand);
  box-shadow: 0 0 0 6px rgba(107,227,255,.08);
}

/* ===== FAQ 區塊 ===== */
.faq { display: grid; gap: 5rem; }
.faq details {
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  padding: 3rem 3rem;
  background: rgba(255,255,255,.03);
}
.faq summary { cursor: pointer; font-weight: 700; }

/* ===== Feedback 區塊 ===== */
#feedback-list {
    display: flex;
    flex-direction: row;
    gap: 12px;
    margin-top: 16px;
  }
  .feedback-item {
    background: #f9fafb;
    padding: 12px 16px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  }
  .feedback-item footer {
    margin: 0;
    font-size: 16px;
    color: #a19fda;
    text-align: end;    
  }
  .feedback-item p {
    margin: 6px 0 0;
    font-size: 14px;
    color: #374151;
  }
/* ===== Footer ===== */
.site-footer {
    background: #fff; /* 或你想用的漸層背景 */
    padding: 15px 20px;
    font-size: 0.9em;
    color: #d7b2c7;
    text-align: center;
  }
  
  .footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  
  @media (min-width: 600px) {
    .footer-content {
      flex-direction: row;
      justify-content: center;
    }
  
    .footer-content p {
      margin: 0;
      margin-right: 20px;
    }
  }
  
  .social-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 15px;
  }
  
  .social-links a {
    font-size: 1.4rem;
    transition: color 0.3s ease, transform 0.2s ease;
  }
  
  /* 預設各社群的品牌顏色 */
  .social-links a.facebook   { color: #1877F2; }
  .social-links a.instagram  { color: #E1306C; }
  .social-links a.youtube    { color: #FF0000; }
  .social-links a.line       { color: #00C300; } /* LINE 官方綠 */
  
  /* Hover 時變成你品牌色 */
  .social-links a:hover {
    color: #d7b2c7;
    transform: scale(1.1);
  }

/* ===== 響應式設計 ===== */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding-top: 2.5rem; }
  .syllabus { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .pricing { grid-template-columns: 1fr; }
  .instructor { grid-template-columns: 90px 1fr; }
  .stats { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid-3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .mobile-toggle { display: inline-flex; }
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f6f8ff; --card: #ffffff; --text: black; --muted: gray; }
  header { background: rgba(255,255,255,.75); }
  .stat, .card, .price-card { box-shadow: 0 10px 25px rgba(6,20,50,.08); }

/* ===== 手機專用樣式 ===== */
@media (max-width: 480px) {
  /* FAQ 調整 padding，只顯示前兩個 */
  .faq details {
    padding: 1.5rem 1rem;
  }
  .faq details:nth-child(n+3) {
    display: none; /* 第三個以後隱藏 */
  }

  /* Feedback 區塊單欄排列，只顯示前兩個 */
  #feedback-list {
    flex-direction: column;
    gap: 10px;
  }
  #feedback-list .feedback-item:nth-child(n+3) {
    display: none; /* 第三個以後隱藏 */
  }
}