/* ============================================================
   投票趣 × 品牌贊助合作意向調查 — 主樣式
   設計語言：Claymorphism / 遊戲化 / 柔和3D立體
   ============================================================ */

:root {
  --blue-primary: #3b9fd5;
  --blue-dark: #1e6fa3;
  --blue-light: #5bc8f5;
  --orange-primary: #f5852a;
  --orange-dark: #e06a10;
  --orange-light: #ffaa57;
  --green-primary: #4cbb7f;
  --purple-primary: #a855f7;
  --yellow-accent: #ffd43b;
  --bg-cream: #fef9f0;
  --bg-light: #f0f8ff;
  --text-dark: #1a2940;
  --text-mid: #4a5568;
  --text-light: #718096;
  --white: #ffffff;
  --shadow-soft: 0 8px 32px rgba(59,159,213,0.12);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-btn: 0 6px 20px rgba(245,133,42,0.35);
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: 'Noto Sans TC', 'Inter', sans-serif;
  background: var(--bg-cream);
  color: var(--text-dark);
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  line-height: 1.7;
  position: relative;
}

/* ========= PARTICLES ========= */
.particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.4;
  animation: floatParticle linear infinite;
}
@keyframes floatParticle {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 0.4; }
  90% { opacity: 0.4; }
  100% { transform: translateY(-10vh) rotate(360deg); opacity: 0; }
}

/* ========= HEADER ========= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1.5px solid rgba(59,159,213,0.12);
  box-shadow: 0 2px 20px rgba(59,159,213,0.08);
  transition: var(--transition);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.logo-wrap {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
/* Header logo — 白底在白色header上完全正常 */
.logo-img {
  display: block;
  height: 36px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  transition: var(--transition);
}
.logo-img:hover { transform: scale(1.03); }

/* Hero logo */
.hero-logo-wrap {
  margin-bottom: 16px;
}
.hero-logo-img {
  display: block;
  height: 72px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  /* 白底在奶油色背景 — 加圓角和陰影讓銜接自然 */
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(59,159,213,0.12);
}
@keyframes bounceElephant {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.header-nav a {
  text-decoration: none;
  color: var(--text-mid);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: 20px;
  transition: var(--transition);
}
.header-nav a:hover { color: var(--blue-primary); background: rgba(59,159,213,0.08); }
.btn-nav {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark)) !important;
  color: white !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 12px rgba(245,133,42,0.3);
}
.btn-nav:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,133,42,0.4) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block; width: 24px; height: 2.5px;
  background: var(--blue-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: white;
  z-index: 999;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  border-radius: 0 0 20px 20px;
  overflow: hidden;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 16px 24px;
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 600;
  font-size: 1rem;
  border-bottom: 1px solid rgba(59,159,213,0.08);
  transition: var(--transition);
}
.mobile-nav a:hover { background: rgba(59,159,213,0.06); color: var(--blue-primary); }
.mobile-nav a:last-child { border-bottom: none; }

/* ========= HERO WRAPPER ========= */
.hero-wrapper {
  width: 100%;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* ========= HERO ========= */
.hero {
  min-height: 100vh;
  padding: 100px 24px 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.hero-bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}
.blob1 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--blue-light), var(--blue-primary));
  top: -80px; left: -80px;
}
.blob2 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, var(--orange-light), var(--orange-primary));
  bottom: -80px; right: -60px;
}
.hero-content { flex: 1; max-width: 540px; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  border: 2px solid var(--orange-light);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--orange-dark);
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(245,133,42,0.2);
  animation: pulseBadge 2s ease-in-out infinite;
}
@keyframes pulseBadge {
  0%,100% { box-shadow: 0 4px 12px rgba(245,133,42,0.2); }
  50% { box-shadow: 0 6px 24px rgba(245,133,42,0.4); }
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.text-gradient {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--blue-primary);
  margin-bottom: 12px;
}
.hero-desc {
  font-size: 1rem;
  color: var(--text-mid);
  margin-bottom: 28px;
  line-height: 1.8;
}
.hero-desc strong { color: var(--orange-primary); }

.hero-stats {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.stat-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 12px 20px;
  box-shadow: var(--shadow-card);
  border: 1.5px solid rgba(59,159,213,0.12);
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-soft); }
.stat-num {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--blue-dark);
}
.stat-label {
  font-size: 0.72rem;
  color: var(--text-light);
  font-weight: 500;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
  color: white;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: var(--shadow-btn);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: var(--transition);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(245,133,42,0.45); }
.btn-primary:hover::before { opacity: 1; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  color: var(--blue-primary);
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid var(--blue-primary);
  transition: var(--transition);
}
.btn-secondary:hover { background: var(--blue-primary); color: white; transform: translateY(-3px); }

/* Hero visual */
.hero-visual {
  flex: 0 0 auto;
  position: relative;
  width: 300px;
  height: 540px;
  z-index: 1;
}
.phone-mockup {
  position: relative;
  width: 240px;
  margin: 0 auto;
}
.phone-frame {
  background: #1a1a2e;
  border-radius: 40px;
  padding: 12px 8px;
  box-shadow:
    0 30px 80px rgba(0,0,0,0.25),
    0 0 0 2px rgba(255,255,255,0.08),
    inset 0 0 0 1px rgba(255,255,255,0.05);
  position: relative;
  z-index: 2;
}
.phone-frame::before {
  content: '';
  display: block;
  width: 60px; height: 8px;
  background: rgba(255,255,255,0.15);
  border-radius: 4px;
  margin: 0 auto 10px;
}
.phone-screen {
  width: 100%;
  border-radius: 28px;
  display: block;
}
.phone-glow {
  position: absolute;
  inset: 20px;
  background: radial-gradient(circle, rgba(91,200,245,0.3), transparent 70%);
  border-radius: 50%;
  filter: blur(30px);
  z-index: 1;
}

.float-badge {
  position: absolute;
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 900;
  color: white;
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  z-index: 3;
  animation: floatBadge 3s ease-in-out infinite;
}
.badge-a {
  background: linear-gradient(135deg, #f5852a, #e06a10);
  top: 120px; left: -20px;
  animation-delay: 0s;
}
.badge-b {
  background: linear-gradient(135deg, #1e6fa3, #3b9fd5);
  top: 240px; right: -10px;
  animation-delay: 1.5s;
}
@keyframes floatBadge {
  0%,100% { transform: translateY(0) rotate(-5deg); }
  50% { transform: translateY(-12px) rotate(5deg); }
}

.float-coin {
  position: absolute;
  font-size: 1.6rem;
  z-index: 3;
  animation: floatCoin 4s ease-in-out infinite;
}
.coin1 { top: 30px; right: 10px; animation-delay: 0s; }
.coin2 { bottom: 100px; left: 5px; animation-delay: 1s; }
.coin3 { bottom: 40px; right: 20px; animation-delay: 2s; }
@keyframes floatCoin {
  0%,100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.1); }
}

/* ========= CONTAINER ========= */
.container {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========= SECTION COMMONS ========= */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, rgba(59,159,213,0.1), rgba(91,200,245,0.1));
  border: 1.5px solid rgba(59,159,213,0.25);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-primary);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.2;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-mid);
  margin-bottom: 48px;
}

/* ========= INTRO ========= */
.intro-section {
  padding: 48px 24px;
  position: relative;
  z-index: 1;
}
.intro-card {
  background: linear-gradient(135deg, rgba(59,159,213,0.06), rgba(245,133,42,0.04));
  border: 2px solid rgba(59,159,213,0.15);
  border-radius: var(--radius-xl);
  padding: 36px 40px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: var(--shadow-soft);
}
.intro-elephant {
  font-size: 3.5rem;
  flex-shrink: 0;
  animation: bounceElephant 3s ease-in-out infinite;
}
.intro-logo-img {
  display: block;
  height: 80px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 12px;
}
.intro-text p {
  margin-bottom: 12px;
  color: var(--text-mid);
  font-size: 0.98rem;
  line-height: 1.8;
}
.intro-text p:last-child { margin-bottom: 0; }
.intro-text strong { color: var(--blue-dark); }

/* ========= WHY US ========= */
.why-us {
  padding: 80px 24px;
  background: linear-gradient(180deg, var(--bg-cream) 0%, var(--bg-light) 100%);
  position: relative;
  z-index: 1;
}
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 56px;
}
.adv-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  border: 1.5px solid rgba(59,159,213,0.08);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.adv-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: inherit;
  opacity: 0;
  transition: var(--transition);
}
.adv-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(59,159,213,0.15);
  border-color: rgba(59,159,213,0.2);
}
.adv-icon {
  width: 52px; height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: white;
  margin-bottom: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.adv-card h3 {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.adv-card p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.7;
}
.adv-card p strong { color: var(--blue-dark); }

/* Showcase images */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}
.showcase-item {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
  transition: var(--transition);
  position: relative;
}
.showcase-item:hover { transform: translateY(-4px) scale(1.01); box-shadow: 0 20px 60px rgba(0,0,0,0.15); }
.showcase-item img {
  width: 100%;
  display: block;
  aspect-ratio: 3/4;
  object-fit: cover;
}
.showcase-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75), transparent);
  color: white;
  padding: 24px 16px 12px;
  font-size: 0.88rem;
  font-weight: 700;
  text-align: center;
}

/* ========= PACKAGES ========= */
.packages {
  padding: 80px 24px;
  position: relative;
  z-index: 1;
}
.packages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.pkg-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 28px 22px 24px;
  box-shadow: var(--shadow-card);
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.pkg-card:hover { transform: translateY(-6px); }

.pkg-gold { border-color: #f5d060; background: linear-gradient(180deg,#fffef0,#fff); }
.pkg-gold:hover { box-shadow: 0 16px 48px rgba(245,208,96,0.25); }
.pkg-blue { border-color: rgba(59,159,213,0.3); }
.pkg-blue:hover { box-shadow: 0 16px 48px rgba(59,159,213,0.2); }
.pkg-green { border-color: rgba(76,187,127,0.3); }
.pkg-green:hover { box-shadow: 0 16px 48px rgba(76,187,127,0.2); }
.pkg-purple { border-color: rgba(168,85,247,0.3); background: linear-gradient(180deg,#fdf4ff,#fff); }
.pkg-purple:hover { box-shadow: 0 16px 48px rgba(168,85,247,0.2); }

.pkg-ribbon {
  position: absolute;
  top: 12px; right: 12px;
  background: linear-gradient(135deg, #f5d060, #e0a800);
  color: #5c3d00;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 50px;
  box-shadow: 0 2px 8px rgba(224,168,0,0.3);
}
.pkg-purple .pkg-ribbon {
  background: linear-gradient(135deg, #c084fc, #a855f7);
  color: white;
  box-shadow: 0 2px 8px rgba(168,85,247,0.3);
}

.pkg-icon { font-size: 2.4rem; margin-bottom: 14px; }

.pkg-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.pkg-card > p {
  font-size: 0.87rem;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 16px;
}
.pkg-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pkg-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-mid);
  font-weight: 500;
}
.pkg-features li i {
  color: var(--green-primary);
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ========= FORM SECTION ========= */
.form-section {
  padding: 80px 24px 100px;
  background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-cream) 100%);
  position: relative;
  z-index: 1;
}

.sponsor-form {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-block {
  background: white;
  border-radius: var(--radius-xl);
  padding: 32px 36px;
  box-shadow: var(--shadow-card);
  border: 1.5px solid rgba(59,159,213,0.1);
}

.form-block-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px dashed rgba(59,159,213,0.15);
}
.form-block-num {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  color: white;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 900;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(59,159,213,0.3);
}

/* Checkbox grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}
.checkbox-grid.small-check {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(59,159,213,0.12);
  transition: var(--transition);
  background: rgba(59,159,213,0.02);
  user-select: none;
}
.check-item:hover {
  border-color: rgba(59,159,213,0.35);
  background: rgba(59,159,213,0.06);
}
.check-item input[type="checkbox"] { display: none; }
.check-item input[type="checkbox"]:checked + .check-box {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  border-color: transparent;
}
.check-item input[type="checkbox"]:checked + .check-box i { opacity: 1; }
.check-item input[type="checkbox"]:checked ~ .check-content strong { color: var(--blue-dark); }
.check-item:has(input:checked) {
  border-color: var(--blue-primary);
  background: rgba(59,159,213,0.07);
}

.check-box {
  width: 22px; height: 22px;
  border-radius: 7px;
  border: 2px solid rgba(59,159,213,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: var(--transition);
}
.check-box i {
  font-size: 0.7rem;
  color: white;
  opacity: 0;
  transition: var(--transition);
}
.check-content { display: flex; flex-direction: column; gap: 2px; }
.check-content strong { font-size: 0.9rem; color: var(--text-dark); font-weight: 700; }
.check-content small { font-size: 0.78rem; color: var(--text-light); }

/* Radio grid */
.radio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.radio-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(59,159,213,0.12);
  transition: var(--transition);
  background: rgba(59,159,213,0.02);
  user-select: none;
}
.radio-item:hover { border-color: rgba(59,159,213,0.35); background: rgba(59,159,213,0.06); }
.radio-item input[type="radio"] { display: none; }
.radio-item input[type="radio"]:checked + .radio-box { border-color: var(--blue-primary); }
.radio-item input[type="radio"]:checked + .radio-box::after { opacity: 1; transform: scale(1); }
.radio-item:has(input:checked) { border-color: var(--blue-primary); background: rgba(59,159,213,0.07); }

.radio-box {
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 2px solid rgba(59,159,213,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: var(--transition);
  position: relative;
}
.radio-box::after {
  content: '';
  width: 9px; height: 9px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  border-radius: 50%;
  opacity: 0;
  transform: scale(0);
  transition: var(--transition);
}
.radio-content { display: flex; flex-direction: column; gap: 2px; }
.radio-content strong { font-size: 0.88rem; color: var(--text-dark); font-weight: 700; }
.radio-content small { font-size: 0.76rem; color: var(--text-light); }

/* Budget grid */
.budget-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
.budget-item { cursor: pointer; user-select: none; }
.budget-item input[type="radio"] { display: none; }
.budget-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  padding: 20px 16px;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(59,159,213,0.12);
  background: rgba(59,159,213,0.02);
  transition: var(--transition);
}
.budget-box:hover { border-color: rgba(245,133,42,0.4); background: rgba(245,133,42,0.04); }
.budget-item input:checked + .budget-box {
  border-color: var(--orange-primary);
  background: rgba(245,133,42,0.07);
  box-shadow: 0 4px 16px rgba(245,133,42,0.15);
}
.budget-emoji { font-size: 1.8rem; }
.budget-box strong { font-size: 0.88rem; color: var(--text-dark); font-weight: 800; }
.budget-box small { font-size: 0.75rem; color: var(--text-light); }

/* Fields */
.fields-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field-full { grid-column: 1 / -1; }

.field-group { display: flex; flex-direction: column; gap: 8px; }
.field-group label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-dark);
}
.optional { font-weight: 400; color: var(--text-light); font-size: 0.8rem; }

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.input-wrap i {
  position: absolute;
  left: 14px;
  color: var(--blue-primary);
  font-size: 0.95rem;
  opacity: 0.7;
  pointer-events: none;
}
.input-wrap input {
  width: 100%;
  min-width: 0;
  padding: 12px 14px 12px 40px;
  border: 2px solid rgba(59,159,213,0.15);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.93rem;
  color: var(--text-dark);
  background: rgba(59,159,213,0.02);
  transition: var(--transition);
  outline: none;
}
.input-wrap input:focus {
  border-color: var(--blue-primary);
  background: white;
  box-shadow: 0 0 0 4px rgba(59,159,213,0.1);
}
.input-wrap input::placeholder { color: var(--text-light); }
.input-wrap input.error { border-color: #e53e3e; box-shadow: 0 0 0 4px rgba(229,62,62,0.1); }

.textarea-wrap textarea {
  width: 100%;
  min-width: 0;
  padding: 14px 16px;
  border: 2px solid rgba(59,159,213,0.15);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.93rem;
  color: var(--text-dark);
  background: rgba(59,159,213,0.02);
  transition: var(--transition);
  outline: none;
  resize: vertical;
  min-height: 110px;
}
.textarea-wrap textarea:focus {
  border-color: var(--blue-primary);
  background: white;
  box-shadow: 0 0 0 4px rgba(59,159,213,0.1);
}
.textarea-wrap textarea::placeholder { color: var(--text-light); }

/* Sub labels */
.sub-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.mt-24 { margin-top: 24px; }

/* Required star */
.required-star { color: #e53e3e; }

/* Submit area */
.form-submit-area {
  text-align: center;
  padding: 8px 0 16px;
}
.privacy-note {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.privacy-note i { color: var(--green-primary); }

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
  color: white;
  border: none;
  padding: 18px 48px;
  border-radius: 50px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: var(--shadow-btn);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}
.btn-submit::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: var(--transition);
}
.btn-submit:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(245,133,42,0.45); }
.btn-submit:hover::before { opacity: 1; }
.btn-submit:active { transform: translateY(-1px); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ========= MODAL ========= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-overlay.show { display: flex; }

.modal-card {
  background: white;
  border-radius: 28px;
  padding: 48px 40px;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0,0,0,0.2);
  animation: modalIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.8) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-elephant { font-size: 4rem; margin-bottom: 8px; animation: bounceElephant 2s ease-in-out infinite; }
.modal-confetti { font-size: 2rem; margin-bottom: 12px; }
.modal-card h2 {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--text-dark);
  margin-bottom: 12px;
}
.modal-card p {
  color: var(--text-mid);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 8px;
}
.modal-card p strong { color: var(--blue-dark); }
.modal-sub { font-size: 0.85rem !important; color: var(--text-light) !important; margin-top: 8px; }

.btn-modal {
  display: inline-block;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
  color: white;
  text-decoration: none;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 0.95rem;
  margin-top: 20px;
  box-shadow: var(--shadow-btn);
  transition: var(--transition);
}
.btn-modal:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(245,133,42,0.4); }

.btn-modal-close {
  display: block;
  margin: 12px auto 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--text-light);
  transition: var(--transition);
}
.btn-modal-close:hover { color: var(--text-dark); }

/* ========= AD PLACEMENTS ========= */
.placements-section {
  padding: 80px 24px;
  background: var(--bg-cream);
  position: relative;
  z-index: 1;
}

.placement-row {
  display: flex;
  align-items: center;
  gap: 56px;
  margin-bottom: 80px;
  animation: fadeInUp 0.6s ease both;
}
.placement-row:last-child { margin-bottom: 0; }

.placement-row-reverse {
  flex-direction: row-reverse;
}

/* Phone mockup frame */
.placement-phone {
  flex-shrink: 0;
  width: 220px;
}
.placement-phone-frame {
  width: 220px;
  border-radius: 36px;
  overflow: hidden;
  box-shadow:
    0 0 0 8px #1e2a3a,
    0 0 0 10px rgba(255,255,255,0.08),
    0 24px 60px rgba(0,0,0,0.28);
  aspect-ratio: 9/19.5;
  background: #000;
}
.placement-phone-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

/* Info side */
.placement-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.placement-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 50px;
  padding: 5px 14px;
  font-size: 0.8rem;
  font-weight: 800;
  align-self: flex-start;
  letter-spacing: 0.02em;
}
.tag-orange { background: rgba(245,133,42,0.12); color: var(--orange-dark); border: 1.5px solid rgba(245,133,42,0.3); }
.tag-blue   { background: rgba(59,159,213,0.1);  color: var(--blue-dark);   border: 1.5px solid rgba(59,159,213,0.25); }
.tag-purple { background: rgba(168,85,247,0.1);  color: #7c3aed;            border: 1.5px solid rgba(168,85,247,0.25); }
.tag-green  { background: rgba(76,187,127,0.1);  color: #2e7d52;            border: 1.5px solid rgba(76,187,127,0.25); }

.placement-info h3 {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-dark);
  line-height: 1.2;
  margin: 0;
}

.placement-desc {
  font-size: 0.95rem;
  color: var(--text-mid);
  line-height: 1.7;
  margin: 0;
}

.placement-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.placement-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-dark);
  font-weight: 500;
}
.placement-features li i {
  color: var(--blue-primary);
  margin-top: 3px;
  flex-shrink: 0;
  font-size: 0.85rem;
}

.placement-format-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59,159,213,0.06);
  border: 1.5px dashed rgba(59,159,213,0.3);
  border-radius: var(--radius-md);
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--blue-dark);
  align-self: flex-start;
  margin-top: 4px;
}

/* ========= HOW IT WORKS ========= */
.how-it-works {
  padding: 80px 24px;
  background: linear-gradient(180deg, var(--bg-cream) 0%, var(--bg-light) 100%);
  position: relative;
  z-index: 1;
  text-align: center;
}

.steps-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-top: 48px;
  flex-wrap: nowrap;
}

.step-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 32px 24px 28px;
  box-shadow: var(--shadow-card);
  border: 2px solid rgba(59,159,213,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
  max-width: 220px;
  position: relative;
  transition: var(--transition);
}
.step-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(59,159,213,0.18);
  border-color: rgba(59,159,213,0.3);
}

.step-num {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.step-icon {
  font-size: 2.4rem;
  line-height: 1;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-dark);
  margin: 0;
  text-align: center;
}

.step-card p {
  font-size: 0.82rem;
  color: var(--text-mid);
  line-height: 1.5;
  margin: 0;
  text-align: center;
}

.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  font-size: 1.5rem;
  color: var(--blue-light);
  flex-shrink: 0;
  margin-top: 48px;
}

/* ========= COMPARE BANNER ========= */
.compare-banner {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(0,0,0,0.12);
  max-width: 900px;
  margin: 48px auto 0;
}

.compare-side {
  flex: 1;
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.compare-old {
  background: linear-gradient(160deg, #f7f9fc 0%, #edf0f5 100%);
  border-right: none;
}

.compare-new {
  background: linear-gradient(160deg, #1e6fa3 0%, #3b9fd5 60%, #5bc8f5 100%);
  color: white;
}

.compare-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--text-dark);
  color: white;
  font-size: 1.1rem;
  font-weight: 900;
  padding: 0 18px;
  letter-spacing: 0.04em;
  min-width: 52px;
  flex-shrink: 0;
}

.compare-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 4px;
}

.compare-old .compare-label { color: var(--text-mid); }
.compare-new .compare-label { color: rgba(255,255,255,0.7); }

.compare-title {
  font-size: 1.3rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 8px;
}

.compare-old .compare-title { color: var(--text-dark); }
.compare-new .compare-title { color: white; }

.compare-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  line-height: 1.4;
}

.compare-old .compare-list li { color: var(--text-mid); }
.compare-new .compare-list li { color: rgba(255,255,255,0.92); }

.compare-list li i {
  margin-top: 2px;
  flex-shrink: 0;
  font-size: 0.85rem;
}

.compare-old .compare-list li i { color: #e53e3e; }
.compare-new .compare-list li i { color: var(--yellow-accent); }

.compare-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.2);
  border: 1.5px solid rgba(255,255,255,0.35);
  border-radius: 50px;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  color: white;
  margin-top: 8px;
  align-self: flex-start;
}

/* ========= FOOTER ========= */
.site-footer {
  background: var(--text-dark);
  color: rgba(255,255,255,0.8);
  padding: 48px 24px;
  position: relative;
  z-index: 1;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
/* Footer logo — 白底圖加圓角白色背景框讓 Logo 在深色中清楚顯示 */
.footer-logo-img {
  display: block;
  height: 52px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  background: white;
  border-radius: 14px;
  padding: 6px 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}
.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}
.footer-links a:hover { color: white; }
.footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  text-align: right;
  line-height: 1.6;
}
.footer-copy small { font-size: 0.72rem; color: rgba(255,255,255,0.3); }

/* ========= RESPONSIVE ========= */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    min-height: auto;
    padding-top: 80px;
    padding-bottom: 48px;
    padding-left: 16px;
    padding-right: 16px;
    gap: 32px;
    width: 100%;
  }
  .hero-content { max-width: 100%; width: 100%; }
  .hero-stats { justify-content: center; }
  .hero-ctas { justify-content: center; }
  .hero-visual { width: 200px; height: 360px; }
  .phone-frame { width: 175px; margin: 0 auto; }
  .badge-a { left: -5px; }
  .badge-b { right: -5px; }
  .blob1 { width: 200px; height: 200px; left: -50px; }
  .blob2 { width: 200px; height: 200px; right: -40px; }

  .header-nav { display: none; }
  .hamburger { display: flex; }
  .logo-img { height: 30px; width: auto; max-width: 140px; }
  .hero-logo-img { height: 56px; }
  .footer-logo-img { height: 44px; }

  .showcase-row { grid-template-columns: 1fr; max-width: 360px; }
  .intro-card { flex-direction: column; align-items: center; text-align: center; padding: 28px 16px; }
  .fields-grid { grid-template-columns: 1fr; }
  .form-block { padding: 24px 16px; }
  .form-section { padding: 60px 16px 80px; }
  .why-us { padding: 60px 0; }
  .packages { padding: 60px 0; }
  .intro-section { padding: 40px 0; }
  .container { padding: 0 16px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
  .footer-copy { text-align: center; }

  /* Ad Placements — mobile */
  .placements-section { padding: 60px 16px; }
  .placement-row,
  .placement-row-reverse {
    flex-direction: column;
    gap: 28px;
    margin-bottom: 56px;
    align-items: center;
  }
  .placement-phone { width: 180px; }
  .placement-phone-frame { width: 180px; border-radius: 28px; }
  .placement-info h3 { font-size: 1.2rem; }
  .placement-tag { font-size: 0.75rem; }

  /* How it works — mobile: vertical stack */
  .how-it-works { padding: 60px 16px; }
  .steps-row {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .step-card { max-width: 100%; width: 100%; }
  .step-arrow {
    transform: rotate(90deg);
    margin: 4px 0;
    padding: 0;
  }

  /* Compare banner — mobile: vertical stack */
  .compare-banner {
    flex-direction: column;
    margin: 32px 0 0;
  }
  .compare-vs {
    padding: 14px 0;
    min-width: unset;
    width: 100%;
  }
  .compare-side { padding: 28px 24px; }
}

@media (max-width: 560px) {
  .hero-title { font-size: 1.85rem; }
  .hero-badge { font-size: 0.78rem; padding: 7px 14px; }
  .checkbox-grid { grid-template-columns: 1fr; }
  .checkbox-grid.small-check { grid-template-columns: 1fr; }
  .radio-grid { grid-template-columns: 1fr; }
  .budget-grid { grid-template-columns: 1fr 1fr; }
  .btn-submit { padding: 16px 28px; font-size: 0.95rem; width: 100%; justify-content: center; }
  .modal-card { padding: 32px 20px; margin: 0 8px; }
  .packages-grid { grid-template-columns: 1fr; }
  .adv-card { padding: 22px 18px; }
  .section-title { font-size: 1.6rem; }
  .stat-card { padding: 10px 14px; }
  .hero-stats { gap: 8px; }
  .hero-ctas { flex-direction: column; align-items: center; width: 100%; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .form-block { padding: 20px 14px; }
  .check-item, .radio-item { padding: 12px 12px; }
  .budget-box { padding: 14px 10px; }
  .compare-side { padding: 24px 16px; }
  .compare-title { font-size: 1.1rem; }
  .step-card { padding: 24px 20px 20px; }
  .step-num { font-size: 1.8rem; }
}

@media (max-width: 380px) {
  .budget-grid { grid-template-columns: 1fr; }
}