/* ============================================
   成都崇宇数智科技 - 官网样式
   主色 #165DFF | 极简科技风
   ============================================ */

:root {
  --primary: #165DFF;
  --primary-dark: #0E42C2;
  --primary-light: #4080FF;
  --accent: #00D4FF;
  --gradient-banner: linear-gradient(135deg, #0a1628 0%, #0d2847 40%, #165DFF 100%);
  --gradient-card: linear-gradient(135deg, rgba(22, 93, 255, 0.08) 0%, rgba(0, 212, 255, 0.05) 100%);
  --gray-50: #F7F8FA;
  --gray-100: #F2F3F5;
  --gray-200: #E5E6EB;
  --gray-300: #C9CDD4;
  --gray-400: #86909C;
  --gray-500: #4E5969;
  --gray-600: #272E3B;
  --gray-900: #1D2129;
  --white: #FFFFFF;
  --black: #000000;
  --shadow-sm: 0 2px 8px rgba(22, 93, 255, 0.06);
  --shadow-md: 0 4px 20px rgba(22, 93, 255, 0.1);
  --shadow-lg: 0 8px 40px rgba(22, 93, 255, 0.15);
  --radius: 12px;
  --radius-lg: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 72px;
  --font-cn: "Microsoft YaHei", "PingFang SC", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  --font-en: Arial, Helvetica, sans-serif;
  --container: 1200px;
}

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

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

body {
  font-family: var(--font-cn);
  color: var(--gray-600);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  color: var(--gray-900);
  font-weight: 700;
  line-height: 1.3;
}

.section-title {
  font-size: 2.25rem;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-400);
  font-size: 1.05rem;
  margin-bottom: 56px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-header { margin-bottom: 56px; }

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(22, 93, 255, 0.08);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-family: var(--font-en);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: var(--font-cn);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(22, 93, 255, 0.35);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(22, 93, 255, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--white);
}

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

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

.btn-sm { padding: 8px 20px; font-size: 0.875rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ---- Header / Nav ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: all var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.header.scrolled .nav-link { color: var(--gray-600); }
.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active { color: var(--primary); }
.header.scrolled .logo-text { color: var(--gray-900); }
.header.scrolled .logo-slogan { color: var(--gray-400); }
.header.scrolled .nav-toggle span { background: var(--gray-600); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
  font-family: var(--font-en);
  box-shadow: 0 4px 12px rgba(22, 93, 255, 0.3);
}

.logo-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
}

.logo-slogan {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.65);
  font-weight: 400;
}

.nav { display: flex; align-items: center; gap: 4px; }

.nav-link {
  padding: 8px 14px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  border-radius: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active {
  background: rgba(22, 93, 255, 0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 16px;
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition);
  border-radius: 2px;
}

/* ---- Hero Banner ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-banner);
  overflow: hidden;
}

.hero > .container {
  max-width: 1320px;
  width: 100%;
  padding: 0 40px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(22, 93, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 93, 255, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 93, 255, 0.25) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  animation: pulse 6s ease-in-out infinite;
}

.hero-glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
  bottom: -100px;
  left: -50px;
  animation: pulse 8s ease-in-out infinite reverse;
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: calc(var(--header-height) + 24px) 0 40px;
  max-width: 100%;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(22, 93, 255, 0.2);
  border: 1px solid rgba(22, 93, 255, 0.3);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease;
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  color: var(--white);
  margin-bottom: 24px;
  max-width: 1100px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-title span { color: var(--accent); }

.hero-desc {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 40px;
  line-height: 1.8;
  max-width: 900px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  font-family: var(--font-en);
}

.hero-stat-num span { color: var(--accent); }

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 4px;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Sections ---- */
.section { padding: 100px 0; }
.section-gray { background: var(--gray-50); }
.section-dark { background: var(--gray-900); color: rgba(255,255,255,0.75); }
.section-dark .section-title { color: var(--white); }
.section-dark .section-subtitle { color: rgba(255,255,255,0.5); }

/* ---- Cards ---- */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(22, 93, 255, 0.15);
}

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-card);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}

.card-icon svg { width: 28px; height: 28px; }

.card-title {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.7;
}

/* ---- Grid Layouts ---- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ---- Advantages ---- */
.advantage-card .card-icon { background: rgba(22, 93, 255, 0.1); }

/* ---- Services ---- */
.service-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition);
}

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

.service-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 16px;
}

.service-card .card-link svg { width: 16px; height: 16px; transition: transform var(--transition); }
.service-card:hover .card-link svg { transform: translateX(4px); }

/* ---- Cases ---- */
.case-card {
  padding: 0;
  overflow: hidden;
}

.case-img {
  height: 200px;
  background: var(--gradient-banner);
  position: relative;
  overflow: hidden;
}

.case-img-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  opacity: 0.3;
}

.case-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--primary);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.case-body { padding: 24px; }

.case-title { font-size: 1.05rem; margin-bottom: 8px; }
.case-desc { font-size: 0.85rem; color: var(--gray-400); }

/* ---- Clients ---- */
.client-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.client-logo {
  width: 140px;
  height: 60px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--gray-400);
  font-weight: 600;
  transition: all var(--transition);
}

.client-logo:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ---- Testimonials ---- */
.testimonial-card {
  text-align: center;
  padding: 40px 32px;
}

.testimonial-text {
  font-size: 1rem;
  color: var(--gray-500);
  font-style: italic;
  margin-bottom: 24px;
  line-height: 1.8;
}

.testimonial-author {
  font-weight: 700;
  color: var(--gray-900);
  font-size: 0.95rem;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 4px;
}

/* ---- News ---- */
.news-card {
  display: flex;
  gap: 20px;
  padding: 0;
  overflow: hidden;
}

.news-date-box {
  flex-shrink: 0;
  width: 80px;
  background: var(--primary);
  color: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 8px;
}

.news-date-day {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-en);
  line-height: 1;
}

.news-date-month {
  font-size: 0.75rem;
  opacity: 0.8;
  margin-top: 4px;
}

.news-body { padding: 20px 20px 20px 0; flex: 1; }

.news-tag {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(22, 93, 255, 0.08);
  color: var(--primary);
  margin-bottom: 8px;
}

.news-title {
  font-size: 1rem;
  margin-bottom: 8px;
  transition: color var(--transition);
}

.news-card:hover .news-title { color: var(--primary); }

.news-excerpt {
  font-size: 0.85rem;
  color: var(--gray-400);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- CTA Section ---- */
.cta-section {
  background: var(--gradient-banner);
  position: relative;
  overflow: hidden;
}

.cta-section .hero-glow { top: -300px; right: 200px; }

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 80px 0;
}

.cta-title {
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 16px;
}

.cta-desc {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 36px;
  font-size: 1.05rem;
}

.cta-form {
  display: flex;
  gap: 12px;
  max-width: 520px;
  margin: 0 auto;
}

.cta-form input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: var(--font-cn);
  outline: none;
}

.cta-form input:focus { box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.3); }

/* ---- Footer ---- */
.footer {
  background: #0a1628;
  color: rgba(255, 255, 255, 0.6);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-text { color: var(--white); font-size: 1.1rem; }
.footer-brand .logo-slogan { color: rgba(255,255,255,0.4); }

.footer-desc {
  margin-top: 16px;
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.45);
}

.footer-title {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.875rem;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--primary-light);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom a { color: rgba(255, 255, 255, 0.45); }
.footer-bottom a:hover { color: var(--accent); }

/* ---- Page Header (inner pages) ---- */
.page-hero {
  background: var(--gradient-banner);
  padding: calc(var(--header-height) + 60px) 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero .hero-grid { opacity: 0.5; }

.page-hero-title {
  font-size: 2.5rem;
  color: var(--white);
  position: relative;
  z-index: 2;
  margin-bottom: 12px;
}

.page-hero-desc {
  color: rgba(255, 255, 255, 0.65);
  font-size: 1.05rem;
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
  position: relative;
  z-index: 2;
}

.breadcrumb a { color: rgba(255, 255, 255, 0.65); }
.breadcrumb a:hover { color: var(--white); }

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

.about-img {
  height: 400px;
  background: var(--gradient-banner);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.about-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(22,93,255,0.2), transparent);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.stat-item {
  text-align: center;
  padding: 32px 16px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  font-family: var(--font-en);
}

.stat-num span { font-size: 1.5rem; }

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-400);
  margin-top: 8px;
}

/* ---- Timeline ---- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary);
}

.timeline-year {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  font-family: var(--font-en);
}

.timeline-content {
  background: var(--white);
  padding: 20px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
}

/* ---- Culture Cards ---- */
.culture-card {
  text-align: center;
  padding: 40px 24px;
}

.culture-card .card-icon { margin: 0 auto 20px; }

/* ---- Team ---- */
.team-card {
  text-align: center;
  padding: 32px 24px;
}

.team-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--gradient-card);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary);
  border: 3px solid var(--white);
  box-shadow: var(--shadow-md);
}

.team-name { font-size: 1.05rem; margin-bottom: 4px; }
.team-role { font-size: 0.8rem; color: var(--primary); margin-bottom: 12px; font-weight: 600; }
.team-desc { font-size: 0.85rem; color: var(--gray-400); }

/* ---- Process Steps ---- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: var(--font-en);
  margin: 0 auto 12px;
  position: relative;
  z-index: 2;
}

.process-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-900);
}

.process-desc {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 4px;
}

/* ---- Tech Stack ---- */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-tag {
  padding: 8px 18px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
  transition: all var(--transition);
}

.tech-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(22, 93, 255, 0.04);
}

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

.contact-info-card {
  display: flex;
  gap: 16px;
  padding: 24px;
  margin-bottom: 16px;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: rgba(22, 93, 255, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info-icon svg { width: 22px; height: 22px; }

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

.contact-form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: var(--font-cn);
  transition: border-color var(--transition);
  outline: none;
  background: var(--white);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

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

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

.map-placeholder {
  height: 300px;
  background: var(--gray-100);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 0.9rem;
  border: 1px solid var(--gray-200);
  margin-top: 24px;
}

/* ---- Search & Filter ---- */
.search-bar {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto 40px;
}

.search-bar input {
  flex: 1;
  padding: 12px 20px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: var(--font-cn);
  outline: none;
}

.search-bar input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.875rem;
  cursor: pointer;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-500);
  transition: all var(--transition);
  font-family: var(--font-cn);
}

.filter-tab:hover,
.filter-tab.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* ---- Floating Widget ---- */
.float-widget {
  position: fixed;
  right: 24px;
  bottom: 100px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(22, 93, 255, 0.4);
  transition: all var(--transition);
  border: none;
  position: relative;
}

.float-btn:hover {
  transform: scale(1.1);
  background: var(--primary-dark);
}

.float-btn svg { width: 22px; height: 22px; }

.float-btn .tooltip {
  position: absolute;
  right: 62px;
  background: var(--gray-900);
  color: var(--white);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.float-btn:hover .tooltip { opacity: 1; }

.float-wechat-panel {
  position: fixed;
  right: 88px;
  bottom: 100px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  display: none;
  z-index: 998;
}

.float-wechat-panel.show { display: block; }

.qr-placeholder {
  width: 140px;
  height: 140px;
  background: var(--gray-100);
  border-radius: 8px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--gray-400);
}

.back-to-top {
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
}

/* ---- Scroll 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);
}

/* ---- 404 Page ---- */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gray-50);
}

.error-code {
  font-size: 8rem;
  font-weight: 800;
  color: var(--primary);
  font-family: var(--font-en);
  line-height: 1;
  opacity: 0.3;
}

.error-title {
  font-size: 1.5rem;
  margin: 16px 0 8px;
}

.error-desc {
  color: var(--gray-400);
  margin-bottom: 32px;
}

/* ---- Legal Pages ---- */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.legal-content h2 {
  font-size: 1.3rem;
  margin: 32px 0 12px;
  color: var(--gray-900);
}

.legal-content p,
.legal-content li {
  font-size: 0.95rem;
  color: var(--gray-500);
  margin-bottom: 12px;
  line-height: 1.8;
}

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

/* ---- Service Detail ---- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 80px;
}

.service-detail:nth-child(even) { direction: rtl; }
.service-detail:nth-child(even) > * { direction: ltr; }

.service-detail-img {
  height: 320px;
  background: var(--gradient-banner);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.service-features li svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  top: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: var(--gray-900);
  color: var(--white);
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.9rem;
  z-index: 9999;
  opacity: 0;
  transition: all 0.4s ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-title { font-size: 1.75rem; }
  .section-subtitle { margin-bottom: 40px; }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    gap: 0;
  }

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

  .nav-link {
    color: var(--gray-600) !important;
    padding: 12px 16px;
    width: 100%;
    border-radius: 8px;
  }

  .nav-link:hover,
  .nav-link.active {
    background: rgba(22, 93, 255, 0.08) !important;
    color: var(--primary) !important;
  }

  .nav-actions { display: none; }
  .nav-toggle { display: flex; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .about-img { height: 260px; }
  .contact-grid { grid-template-columns: 1fr; }
  .service-detail { grid-template-columns: 1fr; }
  .service-detail:nth-child(even) { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .cta-form { flex-direction: column; }
  .form-row { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .news-card { flex-direction: column; }
  .news-date-box { width: 100%; flex-direction: row; gap: 8px; padding: 12px; }
  .news-body { padding: 16px; }
  .page-hero-title { font-size: 1.75rem; }
  .float-widget { right: 16px; bottom: 80px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { gap: 16px; }
  .hero-stat-num { font-size: 1.5rem; }
}