/* 宙恆多媒體 - 一頁式官網 */
:root {
  --primary: #e85d2a;
  --primary-dark: #c94a1a;
  --primary-light: #fff4ef;
  --dark: #1a1a2e;
  --dark-soft: #2d2d44;
  --gray: #6b7280;
  --gray-light: #f5f6f8;
  --white: #ffffff;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --transition: 0.3s ease;
  --header-h: 72px;
}

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

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

body {
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  color: var(--dark);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--dark);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 800;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--dark-soft);
  transition: color var(--transition);
  position: relative;
}

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

.nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition);
}

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

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--primary);
  color: var(--white) !important;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition);
}

.header-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.header-cta::after { display: none; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  background: linear-gradient(160deg, #fff 0%, var(--primary-light) 50%, #fff 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 93, 42, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(232, 93, 42, 0.2);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  color: var(--dark);
}

.hero h1 span { color: var(--primary); }

.hero-desc {
  font-size: 1.1rem;
  color: var(--gray);
  margin-bottom: 32px;
  max-width: 520px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(232, 93, 42, 0.35);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(232, 93, 42, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--dark);
  border: 2px solid var(--dark);
}

.btn-outline:hover {
  background: var(--dark);
  color: var(--white);
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: var(--white);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.hero-card-item {
  background: var(--gray-light);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: transform var(--transition);
}

.hero-card-item:hover { transform: translateY(-4px); }

.hero-card-item .icon {
  font-size: 2rem;
  margin-bottom: 8px;
}

.hero-card-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dark);
}

.hero-float {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--primary);
  color: var(--white);
  padding: 16px 24px;
  border-radius: var(--radius);
  font-weight: 700;
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ===== Stats ===== */
.stats {
  padding: 60px 0;
  background: var(--dark);
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item .number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .label {
  font-size: 0.95rem;
  opacity: 0.85;
}

/* ===== Section Common ===== */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--dark);
}

.section-header p {
  color: var(--gray);
  font-size: 1.05rem;
}

/* ===== About ===== */
.about {
  background: var(--gray-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text p {
  color: var(--gray);
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.about-text p:first-child { text-indent: 2em; }

.about-highlight {
  background: var(--white);
  border-left: 4px solid var(--primary);
  padding: 24px 28px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 28px;
  box-shadow: var(--shadow);
}

.about-highlight h3 {
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.about-info p {
  color: var(--dark-soft);
  font-size: 0.95rem;
  line-height: 2;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-box {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}

.feature-box:hover { transform: translateY(-4px); }

.feature-box .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 12px;
}

.feature-box h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature-box p {
  font-size: 0.9rem;
  color: var(--gray);
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--white);
  border: 1px solid #eee;
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.service-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--dark);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.6;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.service-tags span {
  font-size: 0.78rem;
  padding: 4px 10px;
  background: var(--gray-light);
  border-radius: 50px;
  color: var(--dark-soft);
}

/* ===== Reasons ===== */
.reasons {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-soft) 100%);
  color: var(--white);
}

.reasons .section-header h2 { color: var(--white); }
.reasons .section-header p { color: rgba(255, 255, 255, 0.7); }
.reasons .section-tag { color: var(--primary); }

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.reason-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  transition: all var(--transition);
}

.reason-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.reason-num {
  width: 48px;
  height: 48px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 auto 20px;
}

.reason-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.reason-card p {
  font-size: 0.88rem;
  opacity: 0.75;
  line-height: 1.6;
}

/* ===== Contact ===== */
.contact {
  background: var(--gray-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item .icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 1rem;
  font-weight: 500;
}

.contact-form {
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--dark-soft);
}

.form-group label .required { color: var(--primary); }

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #e5e7eb;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 20px;
}

.form-actions {
  display: flex;
  gap: 12px;
}

.form-actions .btn { flex: 1; justify-content: center; }

.btn-reset {
  background: var(--gray-light);
  color: var(--dark);
}

.btn-reset:hover { background: #e5e7eb; }

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0 24px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
}

.footer-nav {
  display: flex;
  gap: 28px;
}

.footer-nav a {
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  font-size: 0.85rem;
}

/* ===== Scroll Top ===== */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-visual { max-width: 500px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .reasons-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
  }

  .menu-toggle { display: flex; }
  .header-cta { display: none; }

  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .stat-item .number { font-size: 2rem; }
  .services-grid { grid-template-columns: 1fr; }
  .reasons-grid { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-nav { flex-wrap: wrap; justify-content: center; }
  .section { padding: 72px 0; }
}