/* ============================================================
   時光重現工作室 — 現代簡約樣式表
   色彩：以原站品牌綠（#508d24）為主色，搭配暖棕與米白
   字體：Noto Serif TC（標題）/ Noto Sans TC（內文）
   ============================================================ */

/* ---------- CSS 變數 ---------- */
:root {
  --color-primary: #4a7c2e;        /* 品牌深綠 */
  --color-primary-light: #6cb83a;  /* 品牌淺綠 */
  --color-accent: #8d5024;         /* 暖棕（原站強調色） */
  --color-dark: #2a2a2a;           /* 深色文字 */
  --color-text: #555;               /* 內文灰 */
  --color-text-light: #888;         /* 淺灰 */
  --color-bg: #ffffff;              /* 主背景 */
  --color-bg-soft: #f7f9f4;        /* 柔綠背景 */
  --color-bg-warm: #faf8e3;        /* 暖米背景 */
  --color-bg-blue: #ebf1f4;        /* 淡藍背景 */
  --color-border: #e5e5e5;          /* 邊框 */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font-serif: 'Noto Serif TC', serif;
  --font-sans: 'Noto Sans TC', sans-serif;
  --max-width: 1200px;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-accent); }
ul, ol { list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-serif); color: var(--color-dark); line-height: 1.4; }

/* ---------- 通用容器 ---------- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ---------- 通用區塊 ---------- */
.section { padding: 80px 0; }
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  color: var(--color-primary);
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 1rem;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 3px;
  background: var(--color-primary-light);
  border-radius: 2px;
}
.section-title--light { color: #fff; }
.section-title--light::after { background: var(--color-primary-light); }
.title-sub { font-size: 1.4rem; font-weight: 500; }
.section-desc { text-align: center; color: var(--color-text-light); margin-bottom: 2.5rem; }

/* ---------- 按鈕 ---------- */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  box-shadow: 0 4px 16px rgba(74,124,46,0.35);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(74,124,46,0.45);
}
.btn-full { width: 100%; }

/* ============================================================
   頂部導覽列
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  transition: var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 42px; width: auto; }
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 1px;
}
.main-nav { display: flex; gap: 8px; }
.main-nav a {
  padding: 8px 16px;
  font-size: 0.95rem;
  color: var(--color-text);
  border-radius: 8px;
  font-weight: 400;
}
.main-nav a:hover {
  color: var(--color-primary);
  background: var(--color-bg-soft);
}
/* 手機漢堡 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 26px; height: 2.5px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ============================================================
   Hero 橫幅
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 120px 0 80px;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20,40,15,0.72), rgba(40,60,25,0.55));
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}
.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
  animation: fadeInUp 1s ease-out;
}
.hero-sub-line {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 2rem;
  color: var(--color-primary-light);
}
.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.92);
  line-height: 2;
  margin-bottom: 2.5rem;
  animation: fadeInUp 1s ease-out 0.2s both;
}
.hero .btn-primary { animation: fadeInUp 1s ease-out 0.4s both; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   服務項目
   ============================================================ */
.section-services { background: var(--color-bg-blue); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 3rem;
}
.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: default;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.service-img-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.service-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.service-card:hover .service-img-wrap img { transform: scale(1.06); }
.service-name {
  font-size: 1.15rem;
  font-weight: 700;
  text-align: center;
  padding: 20px 16px;
  color: var(--color-dark);
}

/* ============================================================
   錄影帶數位化
   ============================================================ */
.section-video {
  background: linear-gradient(135deg, #2d4a1e, #4a7c2e);
  color: #fff;
}
.video-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 3rem;
}
.video-card { transition: var(--transition); }
.video-card:hover { transform: translateY(-6px); }
.video-ratio {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.video-ratio iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}
.video-label {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 1rem;
  color: #fff;
  font-family: var(--font-serif);
}

/* ============================================================
   為何修復（記憶區）
   ============================================================ */
.section-memory {
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
}
.memory-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,30,10,0.82), rgba(30,50,20,0.7));
}
.section-memory .container { position: relative; z-index: 2; }
.memory-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 3rem;
}
.memory-card {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}
.memory-card:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-5px);
  border-color: rgba(255,255,255,0.35);
}
.memory-card--wide { grid-column: span 2; }
.memory-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-light);
  margin-bottom: 0.75rem;
  font-family: var(--font-serif);
}
.memory-card p { color: rgba(255,255,255,0.92); font-size: 1rem; line-height: 1.9; }

/* ============================================================
   圖片前後對比滑桿（Image Comparison Slider）
   ============================================================ */
.section-compare { background: var(--color-bg-soft); }
.comparison-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  cursor: ew-resize;
  user-select: none;
  -webkit-user-select: none;
  aspect-ratio: 4 / 3;
}
.comparison-img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.comparison-img--after { z-index: 1; }
.comparison-img-wrap {
  position: absolute;
  top: 0; left: 0;
  width: 50%; height: 100%;
  overflow: hidden;
  z-index: 2;
}
.comparison-img--before {
  /* 寬度由 JS 動態設定為滑桿實際寬度，確保前後圖裁切一致 */
  max-width: none;
}
/* 拉桿 */
.comparison-handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  pointer-events: none;
}
.comparison-handle-line {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  background: #fff;
  box-shadow: 0 0 12px rgba(0,0,0,0.4);
}
.comparison-handle-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 48px; height: 48px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  font-size: 1.2rem;
}
/* 標籤 */
.comparison-label {
  position: absolute;
  bottom: 16px;
  padding: 6px 16px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 0.85rem;
  border-radius: 20px;
  z-index: 4;
  pointer-events: none;
}
.comparison-label--before { left: 16px; }
.comparison-label--after { right: 16px; }

/* ============================================================
   修復精選（Gallery）
   ============================================================ */
.section-gallery { background: var(--color-bg); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 3rem;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}
.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item figcaption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 10px 14px;
  background: linear-gradient(transparent, rgba(0,0,0,0.75));
  color: #fff;
  font-size: 0.85rem;
  opacity: 0;
  transition: var(--transition);
}
.gallery-item:hover figcaption { opacity: 1; }
.gallery-hint {
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.88rem;
  margin-top: 1.5rem;
}

/* ============================================================
   燈箱（Lightbox）
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  animation: lightboxZoom 0.3s ease;
}
@keyframes lightboxZoom {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.lightbox-content img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}
.lightbox-content figcaption {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  text-align: center;
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 28px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: var(--transition);
  z-index: 2001;
}
.lightbox-close:hover { opacity: 1; transform: rotate(90deg); }
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.12);
  border: none;
  color: #fff;
  font-size: 1.5rem;
  width: 52px; height: 52px;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2001;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.25); }
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }
.lightbox-counter {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  z-index: 2001;
}

/* ============================================================
   價格與流程
   ============================================================ */
.section-pricing { background: var(--color-bg-warm); }
.pricing-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  margin-top: 2.5rem;
}
.pricing-list { display: flex; flex-direction: column; gap: 0; }
.pricing-list li {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 1.05rem;
}
.pricing-list li:last-child { border-bottom: none; }
.price-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.price-name { font-weight: 700; color: var(--color-accent); }
.price-detail { color: var(--color-text); flex: 1; min-width: 200px; }
.price-value {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.15rem;
  white-space: nowrap;
}
.pricing-divider {
  height: 1px;
  background: var(--color-border);
  margin: 24px 0;
}
.pricing-video {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.pricing-video-item {
  background: var(--color-bg-soft);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}
.pricing-video-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.pv-title {
  display: block;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
  font-size: 1rem;
}
.pv-price {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* 服務流程 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 2.5rem;
  counter-reset: step;
}
.process-steps li {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: var(--transition);
  position: relative;
}
.process-steps li:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}
.step-text { font-size: 0.98rem; color: var(--color-text); line-height: 1.6; }

/* ============================================================
   聯絡我們 + 表單
   ============================================================ */
.section-contact { background: var(--color-bg-soft); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  margin-top: 3rem;
  align-items: start;
}
/* 左側資訊 */
.contact-info {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.contact-logo { height: 56px; width: auto; margin: 0 auto 24px; }
.contact-line { text-align: center; margin-bottom: 28px; }
.line-qr {
  width: 160px;
  margin: 0 auto 12px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.line-qr:hover { transform: scale(1.05); box-shadow: var(--shadow-md); }
.line-desc { font-weight: 700; color: var(--color-dark); margin-bottom: 12px; }
.line-steps {
  text-align: left;
  padding-left: 20px;
  list-style: decimal;
  font-size: 0.92rem;
  color: var(--color-text);
  line-height: 2;
}
.contact-detail {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  font-size: 0.95rem;
  line-height: 2;
}
.contact-address { margin-top: 10px; color: var(--color-text-light); }

/* 右側表單 */
.contact-form-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.form-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}
.form-subtitle { color: var(--color-text-light); margin-bottom: 1.5rem; font-size: 0.95rem; }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-dark);
}
.req { color: #e74c3c; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-dark);
  background: #fafafa;
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(74,124,46,0.12);
}
.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
  border-color: #e74c3c;
  background: #fff5f5;
}
.form-error {
  font-size: 0.8rem;
  color: #e74c3c;
  min-height: 1em;
}
/* 狀態提示 */
.form-status {
  padding: 16px 20px;
  border-radius: 10px;
  font-size: 0.95rem;
  line-height: 1.7;
  animation: fadeInUp 0.4s ease-out;
}
.form-status--success {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #a5d6a7;
}
.form-status--error {
  background: #ffebee;
  color: #c62828;
  border: 1px solid #ef9a9a;
}

/* ============================================================
   頁尾
   ============================================================ */
.site-footer {
  background: #1e2a16;
  color: rgba(255,255,255,0.75);
  padding-top: 60px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-logo { height: 48px; margin-bottom: 16px; filter: brightness(1.5); }
.footer-brand p { font-size: 0.95rem; line-height: 1.9; }
.footer-links h4,
.footer-contact h4 {
  color: #fff;
  font-size: 1.05rem;
  margin-bottom: 16px;
  font-family: var(--font-serif);
}
.footer-links a {
  display: block;
  color: rgba(255,255,255,0.7);
  padding: 6px 0;
  font-size: 0.92rem;
}
.footer-links a:hover { color: var(--color-primary-light); padding-left: 6px; }
.footer-contact p { font-size: 0.92rem; line-height: 2; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ============================================================
   回到頂端
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 30px; right: 30px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-primary-light); transform: translateY(-4px); }

/* ============================================================
   響應式設計
   ============================================================ */

/* 平板（≤ 992px） */
@media (max-width: 992px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid { grid-template-columns: 1fr; }
  .memory-grid { grid-template-columns: 1fr; }
  .memory-card--wide { grid-column: span 1; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .hero-title { font-size: 2.5rem; }
  .hero-sub-line { font-size: 1.6rem; }
  .pricing-video { grid-template-columns: 1fr; }
}

/* 手機（≤ 768px） */
@media (max-width: 768px) {
  body { font-size: 16px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 1.7rem; }

  /* 導覽：漢堡選單 */
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    background: #fff;
    padding: 20px;
    gap: 4px;
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    z-index: 999;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .main-nav a { padding: 12px 16px; font-size: 1rem; }

  .hero { min-height: auto; padding: 140px 0 60px; background-attachment: scroll; }
  .hero-title { font-size: 2rem; }
  .hero-sub-line { font-size: 1.3rem; }
  .hero-desc { font-size: 1rem; }

  .service-grid { grid-template-columns: 1fr; gap: 20px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .pricing-wrap { padding: 24px; }
  .pricing-list li { flex-direction: column; gap: 4px; }
  .price-detail { min-width: 0; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .contact-info, .contact-form-wrap { padding: 24px; }
  .section-memory { background-attachment: scroll; }
  .comparison-slider { aspect-ratio: 4 / 3; }
  .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
}

/* 小手機（≤ 480px） */
@media (max-width: 480px) {
  .hero-title { font-size: 1.7rem; }
  .brand-name { font-size: 1rem; }
  .brand-logo { height: 34px; }
}

/* ============================================================
   滾動進場動畫（由 JS 加上 .visible 觸發）
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 尊重使用者減少動效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}