/* ===================================================
   優沛冷氣清洗教室 - 頂級 Cleanify 現代視覺設計系統
   視覺規範：
   - 純白框架：#FFFFFF
   - 網站底色：#F4F9FC
   - 標題字色：#203173
   - 內文字色：#536BA4
   - 亮藍焦點：#0D6EFC
   - 圓角：卡片 20px / 膠囊 9999px / 小組件 12px
   - 參考風格：Cleanify 現代清潔專業 App/Web 視覺
   =================================================== */

:root {
  --bg-body: #F4F9FC;
  --bg-card: #FFFFFF;
  --bg-card-alt: #F8FBFE;
  --color-title: #203173;
  --color-text: #536BA4;
  --color-text-dark: #1E293B;
  --color-primary: #0D6EFC;
  --color-primary-hover: #0856C9;
  --color-primary-light: #EBF3FF;
  --color-line: #06C755;
  --color-line-hover: #05A847;
  --color-border: #E2E8F0;
  --color-border-focus: #0D6EFC;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;

  --radius-card: 22px;
  --radius-card-sm: 16px;
  --radius-pill: 9999px;
  --radius-input: 14px;

  --shadow-sm: 0 2px 8px rgba(32, 49, 115, 0.04);
  --shadow-card: 0 10px 30px rgba(32, 49, 115, 0.05), 0 2px 6px rgba(32, 49, 115, 0.02);
  --shadow-hover: 0 16px 40px rgba(13, 110, 252, 0.12), 0 4px 12px rgba(32, 49, 115, 0.04);
  --shadow-button: 0 6px 18px rgba(13, 110, 252, 0.28);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "微軟正黑體", sans-serif;
  color: var(--color-text);
  background-color: var(--bg-body);
  line-height: 1.65;
  overflow-x: hidden;
  padding-bottom: 78px; /* 手機端預留底部常駐工具列空間 */
}

@media (min-width: 992px) {
  body {
    padding-bottom: 0;
  }
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

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

/* 標題共用 */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-title);
  font-weight: 800;
  line-height: 1.3;
}

/* 容器與版面佈局 */
.clean-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.clean-section {
  padding: 56px 0;
}

@media (min-width: 768px) {
  .clean-section {
    padding: 76px 0;
  }
}

.clean-section-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 40px auto;
}

.clean-section-header .sub-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.clean-section-header h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

@media (min-width: 768px) {
  .clean-section-header h2 {
    font-size: 34px;
  }
}

.clean-section-header p {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.6;
}

/* 頂部導覽列 (Cleanify Modern Navbar) */
.clean-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 2px 14px rgba(32, 49, 115, 0.03);
  transition: all 0.3s ease;
}

.clean-navbar .clean-container {
  max-width: 1360px;
}

.clean-nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  gap: 12px;
}

.clean-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  white-space: nowrap;
}

.clean-brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(13, 110, 252, 0.2);
}

.clean-brand-text {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
}

.clean-brand-name {
  font-size: 18px;
  font-weight: 900;
  color: var(--color-title);
  letter-spacing: -0.2px;
  line-height: 1.2;
  white-space: nowrap;
}

.clean-brand-sub {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 1px 7px;
  border-radius: 4px;
  display: inline-block;
  align-self: flex-start;
  margin-top: 2px;
  white-space: nowrap;
}

.clean-nav-menu {
  display: none;
  align-items: center;
  gap: 4px;
  list-style: none;
  flex-wrap: nowrap;
}

@media (min-width: 1060px) {
  .clean-nav-menu {
    display: flex;
  }
}

.clean-nav-menu a {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--color-title);
  padding: 7px 10px;
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.clean-nav-menu a:hover,
.clean-nav-menu a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.clean-nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  white-space: nowrap;
}

.clean-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--color-primary);
  color: white;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(13, 110, 252, 0.25);
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.clean-nav-btn:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.clean-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  cursor: pointer;
  padding: 8px;
  gap: 5px;
}

@media (min-width: 1040px) {
  .clean-hamburger {
    display: none;
  }
}

.clean-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-title);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* 手機版下拉選單 */
.clean-mobile-drawer {
  display: none;
  background: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
  padding: 18px 24px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.06);
}

.clean-mobile-drawer.active {
  display: block;
}

.clean-mobile-drawer a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-title);
  border-radius: 12px;
}

.clean-mobile-drawer a:hover,
.clean-mobile-drawer a.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* 現代卡片系統 (Clean Cards) */
.clean-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-card);
  padding: 28px;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  position: relative;
}

.clean-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(13, 110, 252, 0.25);
}

/* 膠囊按鈕系統 (Pill Buttons) */
.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: center;
  white-space: nowrap;
}

.btn-pill:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-button);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 8px 22px rgba(13, 110, 252, 0.38);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-outline {
  background: #FFFFFF;
  color: var(--color-primary);
  border: 1.8px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.btn-line {
  background: var(--color-line);
  color: #FFFFFF;
  box-shadow: 0 6px 18px rgba(6, 199, 85, 0.28);
}

.btn-line:hover {
  background: var(--color-line-hover);
  color: #FFFFFF;
  box-shadow: 0 8px 22px rgba(6, 199, 85, 0.38);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 13px;
  border-radius: var(--radius-pill);
}

.btn-block {
  width: 100%;
}

/* 徽章與標籤 (Badges & Pills) */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 13px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
}

.badge-primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.badge-warning {
  background: #FEF3C7;
  color: #D97706;
}

.badge-success {
  background: #D1FAE5;
  color: #059669;
}

.badge-danger {
  background: #FEE2E2;
  color: #DC2626;
}

/* 表單輸入框 (Clean Inputs) */
.clean-form-group {
  margin-bottom: 20px;
}

.clean-label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 8px;
}

.clean-label .req {
  color: var(--color-danger);
  margin-left: 3px;
}

.clean-input,
.clean-select,
.clean-textarea {
  width: 100%;
  padding: 13px 18px;
  border-radius: var(--radius-input);
  border: 1.5px solid var(--color-border);
  background: #FFFFFF;
  font-size: 15px;
  color: var(--color-text-dark);
  font-family: inherit;
  transition: all 0.2s ease;
  outline: none;
}

.clean-input:focus,
.clean-select:focus,
.clean-textarea:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(13, 110, 252, 0.15);
}

.clean-textarea {
  min-height: 100px;
  resize: vertical;
}

/* 方案選擇卡片 (Package Cards - Cleanify 選項風格) */
.package-card {
  background: #FFFFFF;
  border: 2px solid var(--color-border);
  border-radius: 18px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.package-card:hover {
  border-color: rgba(13, 110, 252, 0.5);
  background: #FAFDFE;
}

.package-card.selected {
  border-color: var(--color-primary);
  background: #F5F9FF;
  box-shadow: 0 6px 18px rgba(13, 110, 252, 0.1);
}

.package-card .check-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
  transition: all 0.2s ease;
}

.package-card.selected .check-circle {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* 首頁 Hero 區塊 */
.hero-section {
  padding: 40px 0 60px 0;
}

@media (min-width: 992px) {
  .hero-section {
    padding: 60px 0 80px 0;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 60px;
  }
}

.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 32px;
  line-height: 1.25;
  margin-bottom: 18px;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 44px;
  }
}

.hero-subtitle {
  font-size: 17px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 28px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px dashed var(--color-border);
}

.hero-highlight-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-title);
}

.hero-highlight-item .icon {
  color: var(--color-success);
  font-size: 16px;
}

.hero-visual-card {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(32, 49, 115, 0.12);
  border: 4px solid #FFFFFF;
}

.hero-visual-card img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: center top;
}

.hero-floating-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  padding: 16px 20px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero-floating-badge .avatar-stack {
  display: flex;
  align-items: center;
}

.hero-floating-badge .stat-text {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-title);
  line-height: 1.3;
}

.hero-floating-badge .stat-text span {
  color: var(--color-primary);
  font-weight: 900;
}

/* 接案收入試算器卡片 (Cleanify Calculator) */
.calc-card {
  background: #FFFFFF;
  border-radius: var(--radius-card);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-card);
  padding: 36px 30px;
  margin: 0 auto;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 992px) {
  .calc-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
  }
}

.calc-slider-box {
  background: var(--bg-card-alt);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 18px;
  border: 1px solid var(--color-border);
}

.calc-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.calc-slider-header label {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-title);
}

.calc-slider-val {
  font-size: 18px;
  font-weight: 900;
  color: var(--color-primary);
}

.calc-range {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: #CBD5E1;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.calc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #FFFFFF;
  box-shadow: 0 2px 8px rgba(13, 110, 252, 0.4);
  cursor: pointer;
}

.calc-result-box {
  background: linear-gradient(145deg, #203173, #152252);
  color: #FFFFFF;
  border-radius: 20px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: 0 15px 35px rgba(32, 49, 115, 0.25);
}

.calc-result-title {
  font-size: 15px;
  color: #94A3B8;
  margin-bottom: 6px;
}

.calc-result-number {
  font-size: 40px;
  font-weight: 900;
  color: #38BDF8;
  line-height: 1.1;
  margin-bottom: 20px;
}

.calc-result-subinfo {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 24px;
}

.calc-result-subinfo p {
  color: #E2E8F0;
  font-size: 14px;
  margin-bottom: 6px;
}

.calc-result-subinfo p strong {
  color: #FBBF24;
}

/* 課程項目卡片網格 */
.course-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

@media (min-width: 768px) {
  .course-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1040px) {
  .course-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.course-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.course-card-badge {
  position: absolute;
  top: 18px;
  right: 18px;
}

.course-card-price {
  font-size: 28px;
  font-weight: 900;
  color: var(--color-primary);
  margin: 14px 0 10px 0;
}

.course-card-price small {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.course-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.course-feature-list {
  list-style: none;
  margin: 18px 0;
  flex-grow: 1;
}

.course-feature-list li {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}

.course-feature-list li .check {
  color: var(--color-primary);
  font-weight: 900;
  font-size: 15px;
}

/* 教室據點導航卡片 */
.branch-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .branch-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.branch-card {
  border-left: 5px solid var(--color-primary);
}

.branch-card h3 {
  font-size: 21px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.branch-address {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 12px;
}

.branch-desc {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 20px;
}

/* FAQ 手風琴 */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: #FFFFFF;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 16px;
  font-weight: 800;
  color: var(--color-title);
  user-select: none;
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-question .arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: transform 0.25s ease;
}

.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: white;
}

.faq-answer {
  display: none;
  padding: 0 24px 22px 24px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  display: block;
}

/* 頁尾區塊 */
.clean-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--color-border);
  padding: 60px 0 30px 0;
  color: var(--color-text);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1.2fr;
  }
}

.footer-brand h4 {
  font-size: 20px;
  margin-bottom: 12px;
}

.footer-links h5,
.footer-branch h5 {
  font-size: 16px;
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-branch-card {
  margin-bottom: 10px;
  padding: 10px 12px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
}

.footer-branch-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
}

.footer-branch-header {
  font-weight: 700;
  color: var(--color-title);
  font-size: 13.5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.footer-map-badge {
  font-size: 11.5px;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  transition: all 0.15s;
}

.footer-map-badge:hover {
  background: var(--color-primary);
  color: #fff;
}

.footer-tel-link {
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: none;
}

.footer-tel-link:hover {
  text-decoration: underline;
}

.seo-cities-section {
  border-top: 1px dashed var(--color-border);
  padding: 30px 0;
  margin-top: 30px;
}

.seo-cities-section h5 {
  font-size: 14px;
  color: var(--color-title);
  margin-bottom: 12px;
}

.seo-city-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.seo-city-tag {
  font-size: 12px;
  background: var(--bg-body);
  color: var(--color-text);
  padding: 4px 10px;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.seo-city-tag:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.footer-copyright {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #94A3B8;
}

/* 手機底部雙鍵常駐列 (Mobile Sticky Bar) */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(226, 232, 240, 0.9);
  padding: 10px 16px;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.06);
}

@media (max-width: 991px) {
  .mobile-bottom-bar {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 12px;
  }
}

.mobile-bottom-bar a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 14px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 14px;
}

/* 實戰商場與器材卡片 */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 600px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  display: flex;
  flex-direction: column;
}

.product-emoji-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 16px;
}

.product-price {
  font-size: 22px;
  font-weight: 900;
  color: var(--color-primary);
  margin: 12px 0 16px 0;
}

/* 購物車側邊懸浮按鈕 */
.cart-floating-trigger {
  position: fixed;
  bottom: 90px;
  right: 20px;
  z-index: 999;
  background: var(--color-primary);
  color: white;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(13, 110, 252, 0.4);
  cursor: pointer;
  transition: all 0.2s ease;
}

.cart-floating-trigger:hover {
  transform: scale(1.08);
}

.cart-badge-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #EF4444;
  color: white;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 12px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
}

/* 彈窗對齊 */
.clean-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.clean-modal.active {
  display: flex;
}

.clean-modal-content {
  background: #FFFFFF;
  border-radius: var(--radius-card);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 32px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.25);
  position: relative;
}

.clean-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--bg-body);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-title);
}

/* 通用提示訊息 Toast */
#yp-toast {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--color-title);
  color: #FFFFFF;
  padding: 14px 24px;
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 30px rgba(32, 49, 115, 0.2);
  z-index: 9999;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(-12px);
  transition: all 0.25s ease;
  pointer-events: none;
}

/* ==========================================
   常見問與答 (FAQ Accordion) 樣式
   ========================================== */
.faq-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #FFFFFF;
  border: 1.5px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.faq-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.06);
}

.faq-item.active {
  border-color: var(--color-primary);
  background: #FFFFFF;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.08);
}

.faq-question {
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-title);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  gap: 12px;
}

.faq-question .arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-card-alt);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 900;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: #FFFFFF;
}

.faq-answer {
  display: none;
  padding: 0 22px 20px 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  border-top: 1px dashed #E2E8F0;
  margin-top: 4px;
  padding-top: 16px;
}

.faq-item.active .faq-answer {
  display: block;
}

/* 課程內頁微型 FAQ */
.course-faq-box {
  background: #F8FAFC;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 20px;
  margin-top: 24px;
}

.course-faq-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-title);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}