:root {
  --color-primary: #c8102e;
  --color-primary-dark: #9c0c23;
  --color-dark: #1a1a1a;
  --color-gray: #555555;
  --color-light-gray: #f4f4f5;
  --color-border: #e3e3e6;
  --color-white: #ffffff;
  --font-zh: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1180px;
  --radius: 6px;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-zh);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

html[lang="en"] body { font-family: var(--font-en); }

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

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

.section { padding: 80px 0; }
.section--alt { background: var(--color-light-gray); }

.section-tag {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--color-gray);
  max-width: 640px;
  margin-bottom: 48px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--color-dark);
}

.logo .logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 1.1rem;
}

.logo .logo-sub {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-gray);
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-dark);
  position: relative;
  padding: 4px 0;
}

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

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px;
}

.lang-switch a {
  padding: 4px 12px;
  border-radius: 999px;
}

.lang-switch a.active {
  background: var(--color-primary);
  color: #fff;
}

.header-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
}

.header-cta:hover { background: var(--color-primary-dark); }

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-dark);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #fff 0%, var(--color-light-gray) 100%);
  padding: 90px 0 70px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  background: #fdeaec;
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
}

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

.hero p {
  color: var(--color-gray);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 32px;
}

.btn-row { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
  background: transparent;
  color: var(--color-dark);
  border: 1.5px solid var(--color-dark);
}

.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }

.hero-visual {
  background: var(--color-dark);
  border-radius: 16px;
  aspect-ratio: 4 / 3;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, rgba(200,16,46,0.18) 0 2px, transparent 2px 24px);
}

.hero-visual-label {
  position: relative;
  color: #fff;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 56px;
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
}

.stat-item { text-align: center; }

.stat-num {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  color: var(--color-primary);
}

.stat-label {
  color: var(--color-gray);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* ---------- Cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

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

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: #fdeaec;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.card h3 { font-size: 1.15rem; margin-bottom: 10px; font-weight: 800; }
.card p { color: var(--color-gray); font-size: 0.95rem; }

/* ---------- Process steps ---------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  position: relative;
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.process-step .step-num {
  font-size: 2rem;
  font-weight: 900;
  color: #f1c5cd;
  margin-bottom: 12px;
}

.process-step h4 { font-weight: 800; margin-bottom: 8px; }
.process-step p { color: var(--color-gray); font-size: 0.9rem; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: var(--color-dark);
  color: #fff;
  padding: 64px 0;
  text-align: left;
}

.page-hero .breadcrumb {
  color: #f1a7b1;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.page-hero h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 900; margin-bottom: 12px; }
.page-hero p { color: #cfcfd2; max-width: 600px; }

/* ---------- Case cards ---------- */
.case-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.case-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }

.case-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #2b2b2b, #1a1a1a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.case-body { padding: 24px; }
.case-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  background: #fdeaec;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.case-body h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.case-body p { color: var(--color-gray); font-size: 0.9rem; }

/* ---------- News ---------- */
.news-list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--color-border); }

.news-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
}

.news-date { color: var(--color-gray); font-weight: 700; font-size: 0.9rem; }
.news-item h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 8px; }
.news-item p { color: var(--color-gray); font-size: 0.9rem; }
.news-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

/* ---------- About page ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.value-list { display: flex; flex-direction: column; gap: 20px; margin-top: 28px; }
.value-item { display: flex; gap: 16px; }
.value-item .num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.value-item h4 { font-weight: 800; margin-bottom: 4px; }
.value-item p { color: var(--color-gray); font-size: 0.9rem; }

.placeholder-block {
  background: var(--color-light-gray);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray);
  font-size: 0.85rem;
  text-align: center;
  padding: 24px;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-item .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #fdeaec;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}

.contact-info-item h4 { font-weight: 800; margin-bottom: 4px; font-size: 0.95rem; }
.contact-info-item p, .contact-info-item a { color: var(--color-gray); font-size: 0.9rem; }
.contact-info-item a:hover { color: var(--color-primary); }

.social-row { display: flex; gap: 12px; margin-top: 24px; }
.social-row a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}
.social-row a:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.form-field { margin-bottom: 20px; }
.form-field label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.map-block {
  margin-top: 40px;
  aspect-ratio: 16/6;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.map-block iframe { width: 100%; height: 100%; border: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-dark);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 900; margin-bottom: 14px; }
.cta-band p { color: #cfcfd2; margin-bottom: 32px; }
.cta-band .btn-outline { color: #fff; border-color: rgba(255,255,255,0.4); }
.cta-band .btn-outline:hover { border-color: #fff; }

/* ---------- Footer ---------- */
.site-footer {
  background: #111111;
  color: #c6c6c9;
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #2a2a2a;
}

.footer-logo {
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 14px;
  display: block;
}

.footer-col h5 {
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}

.footer-col ul li { margin-bottom: 12px; }
.footer-col a { font-size: 0.88rem; }
.footer-col a:hover { color: var(--color-primary); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.82rem;
  color: #7a7a7d;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
  }

  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 8px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}