/* ===== 變數與重置（暖金 × 深海藍） ===== */
:root {
  --color-primary: #1e3d5c;
  --color-primary-light: #2f5f7f;
  --color-accent: #c9952e;
  --color-accent-light: #dbad4a;
  --color-accent-soft: rgba(201, 149, 46, 0.14);
  --color-bg: #f7f4ef;
  --color-bg-alt: #ffffff;
  --color-bg-dark: #1a3349;
  --color-text: #2a3542;
  --color-text-muted: #5f6f7f;
  --color-hero-bg: #f3dfa0;
  --color-hero-bg-deep: #e8c96a;
  --color-hero-text: #8b2635;
  --color-hero-text-soft: #6d3b42;
  --color-white: #ffffff;
  --line-green: #06c755;
  --line-green-dark: #05a847;
  --shadow-soft: 0 4px 20px rgba(30, 61, 92, 0.06);
  --shadow-card: 0 10px 36px rgba(30, 61, 92, 0.1);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  padding-bottom: 100px;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(165deg, var(--color-hero-bg) 0%, var(--color-hero-bg-deep) 100%);
  color: var(--color-hero-text);
  padding: 64px 0 72px;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 80% 20%, rgba(201, 149, 46, 0.25) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 15% 80%, rgba(30, 61, 92, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 16px;
  border: 1px solid rgba(139, 38, 53, 0.35);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.45);
  color: var(--color-hero-text);
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 24px;
  color: var(--color-hero-text);
}

.hero-line {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

/* Hero 區 LINE 按鈕：靜態，無動畫 */
.hero-line .line-btn--static .line-btn-inner {
  animation: none;
}

.hero-line .line-btn--static .line-btn-arrow {
  animation: none;
}

.hero-line .line-btn--static:hover .line-btn-inner,
.hero-line .line-btn--static:active .line-btn-inner {
  transform: none;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--color-hero-text-soft);
  letter-spacing: 0.05em;
}

/* ===== 影片區塊 ===== */
.section {
  padding: 56px 0;
}

.video-section.alt {
  background: var(--color-bg-alt);
}

.video-block {
  display: grid;
  grid-template-columns: minmax(220px, 340px) 1fr;
  gap: 40px;
  align-items: center;
}

.video-block.reverse .video-wrapper {
  order: 2;
}

.video-block.reverse .text-block {
  order: 1;
}

.video-wrapper {
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--color-bg-dark);
  aspect-ratio: 9 / 16;
}

.content-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: var(--color-bg-dark);
}

.section-heading {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--color-accent-light);
  display: inline-block;
}

.content-text p {
  margin-bottom: 14px;
  color: var(--color-text);
  font-size: 1.05rem;
}

.content-text p:last-child {
  margin-bottom: 0;
}

.text-block {
  padding: 8px 0;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(180deg, rgba(30, 61, 92, 0.04) 0%, var(--color-bg) 100%);
  text-align: center;
  padding: 48px 0 64px;
}

.cta-title {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.cta-desc {
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* ===== LINE 固定按鈕 ===== */
.line-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 12px 16px 20px;
  background: linear-gradient(to top, var(--color-bg) 65%, transparent);
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.line-bar .line-btn {
  pointer-events: auto;
}

.line-btn {
  position: relative;
  border: none;
  cursor: pointer;
  border-radius: 100px;
  padding: 0;
  background: transparent;
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}

.line-btn-glow {
  position: absolute;
  inset: -6px;
  border-radius: 100px;
  background: var(--line-green);
  opacity: 0.45;
  animation: pulse-glow 2s ease-in-out infinite;
}

.line-btn-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 36px;
  min-width: 280px;
  background: linear-gradient(180deg, #08d65f 0%, var(--line-green) 45%, var(--line-green-dark) 100%);
  color: var(--color-white);
  border-radius: 100px;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow:
    0 4px 0 #048c3a,
    0 8px 24px rgba(6, 199, 85, 0.45),
    0 0 0 3px rgba(255, 255, 255, 0.3) inset;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  animation: btn-bounce 2.5s ease-in-out infinite;
}

.line-btn:hover .line-btn-inner {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 6px 0 #048c3a,
    0 12px 32px rgba(6, 199, 85, 0.55),
    0 0 0 3px rgba(255, 255, 255, 0.35) inset;
}

.line-btn:active .line-btn-inner {
  transform: translateY(2px);
  box-shadow:
    0 2px 0 #048c3a,
    0 4px 16px rgba(6, 199, 85, 0.4),
    0 0 0 3px rgba(255, 255, 255, 0.3) inset;
}

.line-icon {
  width: var(--line-icon-size, 36px);
  height: var(--line-icon-size, 36px);
  flex-shrink: 0;
  display: block;
}

.line-btn-text {
  white-space: nowrap;
}

.line-btn-arrow {
  font-size: 1.3rem;
  animation: arrow-nudge 1.2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.35;
  }
  50% {
    transform: scale(1.08);
    opacity: 0.55;
  }
}

@keyframes btn-bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

@keyframes arrow-nudge {
  0%, 100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(6px);
  }
}

/* ===== 響應式 ===== */
@media (max-width: 768px) {
  .hero {
    padding: 48px 0 56px;
  }

  .video-block,
  .video-block.reverse {
    grid-template-columns: 1fr;
    gap: 28px;
    align-items: stretch;
  }

  .video-wrapper {
    max-width: min(88vw, 360px);
  }

  .video-block.reverse .video-wrapper,
  .video-block.reverse .text-block {
    order: unset;
  }

  .section {
    padding: 40px 0;
  }

  .line-btn-inner {
    min-width: 240px;
    padding: 14px 28px;
    font-size: 1.1rem;
  }

  .line-icon {
    --line-icon-size: 32px;
  }

  body {
    padding-bottom: 90px;
  }
}