@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+TC:wght@300;400;500;600;700&display=swap');

:root {
  /* 品牌核心色系：居家美學木質調與自然柔和色彩 */
  --bg-primary: #FDFBF7;
  --bg-secondary: #F5F2EB;
  --bg-card: rgba(255, 255, 255, 0.85);
  
  --text-main: #2C2A29;
  --text-muted: #6E6B68;
  --text-light: #FFFFFF;
  
  --primary-color: #A67C58;
  --primary-hover: #8C6A53;
  --accent-gold: #D9A05B;
  --accent-soft: #EADDCF;
  
  --border-color: rgba(166, 124, 88, 0.15);
  
  /* 陰影與圓角 */
  --shadow-sm: 0 2px 8px rgba(44, 42, 41, 0.05);
  --shadow-md: 0 8px 24px rgba(44, 42, 41, 0.08);
  --shadow-lg: 0 16px 40px rgba(166, 124, 88, 0.12);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-full: 9999px;
  
  /* 過渡時間 */
  --transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

/* 基礎重設 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', 'Noto Sans TC', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 導覽列 Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  background: rgba(253, 251, 247, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.nav-container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo span {
  color: var(--text-main);
  font-weight: 400;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 4px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-cta {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow-sm);
}

.nav-cta:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--text-light);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-main);
  cursor: pointer;
}

/* 按鈕系統 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: var(--text-light);
  box-shadow: 0 4px 16px rgba(166, 124, 88, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(166, 124, 88, 0.4);
  color: var(--text-light);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--primary-color);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--accent-soft);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* 標題共用樣式 */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background-color: var(--accent-soft);
  color: var(--primary-hover);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  line-height: 1.25;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Hero 區塊 */
.hero {
  padding: 140px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: radial-gradient(circle at top right, var(--bg-secondary), var(--bg-primary));
  position: relative;
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  color: var(--text-main);
}

.hero-title span {
  color: var(--primary-color);
  position: relative;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.hero-img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.hero-img-wrapper:hover {
  transform: scale(1.02);
}

.hero-img-wrapper img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.glass-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.4);
  max-width: 240px;
  display: flex;
  align-items: center;
  gap: 16px;
  animation: floatAnim 4s ease-in-out infinite;
}

.glass-badge-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--accent-gold);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.glass-badge-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* 通用章節配置 */
.section {
  padding: 100px 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 網格系統：四大優勢 / 特色區塊 */
.grid-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg-card);
  padding: 40px 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background-color: var(--accent-soft);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

/* 雙欄展示：技術與對比細節 */
.split-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-top: 48px;
}

.split-showcase.reverse {
  grid-template-columns: 1fr 1fr;
}

.showcase-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 1/1;
}

.showcase-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.showcase-img:hover img {
  transform: scale(1.03);
}

.showcase-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.showcase-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.showcase-item-icon {
  color: var(--primary-color);
  font-size: 1.2rem;
  margin-top: 2px;
}

/* 目標客群情境 (Buyer Persona 呼應區) */
.persona-section {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 80px 48px;
  margin: 64px 0;
}

.persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.persona-card {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.persona-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background-color: var(--accent-soft);
  color: var(--primary-color);
}

.persona-avatar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.persona-avatar-img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background-color: var(--primary-color);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
}

.persona-info h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.persona-info p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.persona-quote {
  font-style: italic;
  color: var(--text-main);
  margin-bottom: 16px;
  font-size: 0.95rem;
  background: var(--bg-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary-color);
}

.persona-painpoints li {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.persona-painpoints li::before {
  content: '✓';
  color: var(--accent-gold);
  font-weight: 700;
}

/* 子頁面導覽卡片 (Sub-pages links) */
.subpage-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.subpage-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4/5;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  background-size: cover;
  background-position: center;
}

.subpage-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.1) 100%);
  z-index: 1;
}

.subpage-card-content {
  position: relative;
  z-index: 2;
  color: var(--text-light);
}

.subpage-card-tag {
  color: var(--accent-gold);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.subpage-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}

.subpage-card-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.subpage-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-light);
}

.subpage-card-link:hover {
  color: var(--accent-gold);
  gap: 12px;
}

.subpage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* 影片區塊 */
.video-section {
  background-color: var(--text-main);
  color: var(--text-light);
  padding: 100px 0;
  position: relative;
}

.video-section .section-title {
  color: var(--text-light);
}

.video-section .section-desc {
  color: rgba(255,255,255,0.7);
}

.video-wrapper {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  aspect-ratio: 16/9;
  background-color: #000;
}

.video-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* 常見問題 FAQ 手風琴 */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary-color);
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.faq-item.active .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}

/* 底部 CTA 區塊 */
.cta-section {
  background: linear-gradient(135deg, var(--bg-secondary), var(--accent-soft));
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-container {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.cta-section .section-title {
  font-size: 2.8rem;
}

/* 頁尾 Footer */
.footer {
  background-color: var(--text-main);
  color: var(--text-light);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 16px;
}

.footer-desc {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  max-width: 360px;
}

.footer-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-light);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
}

/* 滾動動畫進入效果 */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
  opacity: 1;
  transform: translateY(0);
}

/* 文章頁面排版 (Blog/Guide Layout) */
.article-header {
  padding: 160px 0 60px;
  background-color: var(--bg-secondary);
  text-align: center;
}

.article-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.article-content {
  max-width: 800px;
  margin: 64px auto;
  padding: 0 24px;
}

.article-content h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--primary-color);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 24px 0 12px;
}

.article-content p {
  margin-bottom: 20px;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px 24px;
  padding-left: 16px;
  color: var(--text-muted);
}

.article-content ul li {
  list-style-type: disc;
  margin-bottom: 8px;
}

.article-content .highlight-box {
  background-color: var(--bg-secondary);
  padding: 24px 32px;
  border-radius: var(--radius-sm);
  margin: 32px 0;
  border: 1px solid var(--border-color);
}

/* 響應式佈局 RWD */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .split-showcase, .split-showcase.reverse {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .split-showcase.reverse .showcase-img {
    order: -1;
  }
  
  .subpage-cards {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 2.3rem;
  }
  
  .nav-links, .nav-cta {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  /* 開啟手機選單樣式 */
  .navbar.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: var(--bg-primary);
    padding: 32px 24px;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
  }
  
  .navbar.menu-open .nav-cta {
    display: inline-flex;
    margin-top: 16px;
  }
  
  .persona-section {
    padding: 40px 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}