/* ===== 全域變數 ===== */
:root {
  --color-primary: #0f4c81;
  --color-primary-dark: #0a3560;
  --color-accent: #e07a25;
  --color-accent-dark: #b85f14;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-border: #e5e7eb;
  --max-width: 1200px;
  --radius: 8px;
  --shadow-sm: 0 2px 8px rgba(15,76,129,0.08);
  --shadow-md: 0 6px 24px rgba(15,76,129,0.12);
  --transition: all .25s ease;
}

/* ===== Reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, "Segoe UI", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Top Bar ===== */
.topbar {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  padding: 8px 0;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar a { transition: var(--transition); }
.topbar a:hover { color: var(--color-accent); }

.topbar-contact span { margin-right: 20px; }

/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-main {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.5px;
}

.logo-sub {
  font-size: 0.72rem;
  color: var(--color-text-light);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 6px;
  transition: var(--transition);
}

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

.nav-cta {
  margin-left: 12px;
  background: var(--color-accent) !important;
  color: white !important;
  padding: 10px 22px !important;
}

.nav-cta:hover {
  background: var(--color-accent-dark) !important;
  color: white !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--color-primary);
  cursor: pointer;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0f4c81 0%, #1e6bb8 100%);
  color: white;
  padding: 100px 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 45%;
  height: 100%;
  background: radial-gradient(circle at 70% 50%, rgba(224,122,37,0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  margin-bottom: 24px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 24px;
}

.hero h1 .highlight { color: #ffb347; }

.hero .subtitle {
  font-size: 1.1rem;
  opacity: 0.92;
  margin-bottom: 40px;
  max-width: 600px;
}

.cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(224,122,37,0.3);
}

.btn-outline {
  border-color: rgba(255,255,255,0.5);
  color: white;
}
.btn-outline:hover {
  background: white;
  color: var(--color-primary);
}

.btn-solid {
  background: var(--color-primary);
  color: white;
}
.btn-solid:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* ===== 統計數字 Bar ===== */
.stats-bar {
  background: var(--color-bg-alt);
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  text-align: center;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.stat-number .unit {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-left: 4px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin-top: 8px;
}

/* ===== Section 通用 ===== */
.section {
  padding: 90px 0;
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
}

.section-lead {
  color: var(--color-text-light);
  font-size: 1.05rem;
}

/* ===== 服務卡片 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.service-card {
  background: white;
  padding: 40px 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.service-card p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.service-card ul {
  padding: 0;
}

.service-card li {
  padding: 6px 0 6px 24px;
  position: relative;
  color: var(--color-text);
  font-size: 0.95rem;
}

.service-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ===== 為何選我們 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.feature-item {
  text-align: center;
  padding: 20px;
}

.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: white;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 800;
}

.feature-item h4 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.feature-item p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ===== 流程 Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.step {
  background: white;
  padding: 32px 24px;
  border-radius: var(--radius);
  border-top: 3px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
  position: relative;
  counter-increment: step;
}

.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-bg-alt);
}

.step h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.step p {
  color: var(--color-text-light);
  font-size: 0.92rem;
}

/* ===== CTA 大區塊 ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 70px 0;
  text-align: center;
}

.cta-banner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 16px;
}

.cta-banner p {
  opacity: 0.9;
  font-size: 1.05rem;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 頁面 Page Header（次要頁面） ===== */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: 80px 0 60px;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 12px;
}

.page-header .breadcrumb {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
}

.breadcrumb a:hover { color: var(--color-accent); }

/* ===== About 頁面 ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.about-content p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.about-image {
  background: linear-gradient(135deg, #dbe7f4, #a8c8e8);
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-dark);
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.info-table th,
.info-table td {
  padding: 16px 24px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.info-table th {
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-weight: 600;
  width: 30%;
  white-space: nowrap;
}

.info-table tr:last-child th,
.info-table tr:last-child td { border-bottom: none; }

/* ===== Contact 頁面 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info-card {
  background: var(--color-bg-alt);
  padding: 40px;
  border-radius: var(--radius);
}

.contact-info-card h3 {
  color: var(--color-primary);
  font-size: 1.3rem;
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-item:last-child { border-bottom: none; }

.contact-item .icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
}

.contact-item .label {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 2px;
}

.contact-item .value {
  font-weight: 500;
  color: var(--color-text);
}

/* Form */
.contact-form {
  background: white;
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.form-group label .required { color: #dc2626; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15,76,129,0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-message {
  display: none;
  padding: 14px 18px;
  border-radius: var(--radius);
  margin-top: 20px;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
}

.form-message.success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-message.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.map-embed {
  margin-top: 40px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.map-embed iframe {
  width: 100%;
  height: 400px;
  border: 0;
  display: block;
}

/* ===== 法律頁面 ===== */
.legal-content {
  max-width: 820px;
  margin: 0 auto;
}

.legal-content h2 {
  color: var(--color-primary);
  margin-top: 40px;
  margin-bottom: 16px;
  font-size: 1.4rem;
}

.legal-content h2:first-child { margin-top: 0; }

.legal-content p, .legal-content li {
  color: var(--color-text-light);
  margin-bottom: 12px;
  line-height: 1.8;
}

.legal-content ul { padding-left: 20px; list-style: disc; }

/* ===== Footer ===== */
.footer {
  background: #0a2540;
  color: rgba(255,255,255,0.8);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  color: white;
  margin-bottom: 20px;
  font-size: 1rem;
}

.footer-brand .logo-main { color: white; }
.footer-brand p {
  margin-top: 16px;
  font-size: 0.92rem;
  line-height: 1.7;
}

.footer-links li { margin-bottom: 10px; }
.footer-links a { transition: var(--transition); font-size: 0.92rem; }
.footer-links a:hover { color: var(--color-accent); padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

/* ===== 響應式 ===== */
@media (max-width: 900px) {
  .about-grid,
  .contact-grid,
  .form-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .topbar-contact span { display: block; margin: 4px 0; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; text-align: left; }
  .nav-cta { margin: 8px 0 0 !important; text-align: center; }

  .menu-toggle { display: block; }

  .hero { padding: 60px 0; }
  .section { padding: 60px 0; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== 合作品牌 Marquee ===== */
.brands-strip {
  background: white;
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.brands-strip .brands-title {
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.85rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 24px;
  font-weight: 600;
}

/* ===== 品牌輪轉 marquee ===== */
.brand-marquee {
  overflow: hidden;
  position: relative;
  padding: 8px 0;
  mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
}

.brand-marquee + .brand-marquee { margin-top: 14px; }

.marquee-track {
  display: flex;
  gap: 18px;
  width: max-content;
  animation: marquee-left 60s linear infinite;
}

.marquee-track.reverse {
  animation-name: marquee-right;
  animation-duration: 55s;
}

.brand-marquee:hover .marquee-track { animation-play-state: paused; }

@keyframes marquee-left {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes marquee-right {
  from { transform: translateX(-50%); }
  to   { transform: translateX(0); }
}

.brand-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 22px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(15,76,129,0.06);
  min-width: 160px;
  height: 52px;
  flex-shrink: 0;
  justify-content: center;
  transition: var(--transition);
}

.brand-chip:hover {
  border-color: var(--color-primary);
  box-shadow: 0 6px 18px rgba(15,76,129,0.14);
  transform: translateY(-2px);
}

.brand-chip img {
  height: 26px;
  width: 26px;
  object-fit: contain;
  border-radius: 4px;
  flex-shrink: 0;
}

.brand-chip .brand-name {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

/* 舊 brand-item 相容（若還被引用）*/
.brands-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

/* Services 頁真實產品照片 */
.about-image.service-photo {
  padding: 0;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.about-image.service-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* About 頁 Google Maps embed */
.about-image.place-embed {
  padding: 0;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.about-image.place-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ===== 產品案例畫廊 ===== */
.portfolio-group {
  margin-bottom: 72px;
}

.portfolio-group:last-child { margin-bottom: 0; }

.portfolio-heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  border-left: 4px solid var(--color-accent);
  padding-left: 16px;
  margin-bottom: 28px;
}

.portfolio-heading h3 {
  color: var(--color-primary);
  font-size: 1.5rem;
}

.portfolio-heading .meta {
  color: var(--color-text-light);
  font-size: 0.92rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}

.gallery figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-alt);
  box-shadow: var(--shadow-sm);
  cursor: zoom-in;
  transition: var(--transition);
  position: relative;
  aspect-ratio: 4/3;
}

.gallery figure:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.gallery figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}

.gallery figure:hover img { transform: scale(1.06); }

.gallery figcaption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(10,37,64,0.85), transparent);
  color: white;
  padding: 20px 14px 12px;
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  transition: var(--transition);
}

.gallery figure:hover figcaption { opacity: 1; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10,37,64,0.94);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 40px;
  cursor: zoom-out;
}

.lightbox.open { display: flex; }

.lightbox img {
  max-width: 92vw;
  max-height: 88vh;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.lightbox .lb-close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: rgba(255,255,255,0.15);
  color: white;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.6rem;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox .lb-close:hover { background: rgba(255,255,255,0.3); }

.lightbox .lb-caption {
  position: absolute;
  bottom: 32px;
  left: 0; right: 0;
  text-align: center;
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
}

/* ===== Portfolio 頁面 filter bar ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: -20px 0 50px;
}

.filter-bar button {
  background: white;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.filter-bar button:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-bar button.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }