/* ============================================================
   苍鸾信息科技 / 工厂热饭 — 样式表
   ============================================================ */

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

:root {
  --primary: #FF6B35;
  --primary-dark: #E85A2A;
  --dark: #2C3E50;
  --gray: #6B7280;
  --light-gray: #F3F4F6;
  --white: #FFFFFF;
  --bg: #FAFAF8;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Sarabun', 'Kanit', 'Prompt', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--dark);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ========== Language Switcher ========== */
.lang-switcher {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  border-bottom-left-radius: 12px;
  overflow: hidden;
}

.lang-btn {
  padding: 10px 18px;
  border: none;
  background: var(--white);
  color: var(--gray);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

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

.lang-btn.active {
  background: var(--primary);
  color: var(--white);
}

/* ========== Navigation ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 52px;
  z-index: 999;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
  padding: 0 5%;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--dark);
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.nav-logo-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--gray);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* ========== Hero Section ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 100px 5% 60px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #FFF3ED 0%, #FFE8D6 30%, #FEF0E7 60%, #FFF8F3 100%);
  z-index: -2;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(255,107,53,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  max-width: 800px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-icon {
  font-size: 64px;
  margin-bottom: 24px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 20px;
  line-height: 1.3;
}

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

.hero-subtitle {
  font-size: 20px;
  color: var(--gray);
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 107, 53, 0.4);
}

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

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

/* ========== Section ========== */
.section {
  padding: 80px 5%;
}

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

.section-badge {
  display: inline-block;
  background: rgba(255, 107, 53, 0.1);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 17px;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

/* ========== Cards ========== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
}

.card {
  background: var(--white);
  border-radius: 16px;
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  text-align: center;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  font-size: 42px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.card-text {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
}

/* ========== Values ========== */
.values-section {
  background: var(--white);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.value-item {
  text-align: center;
  padding: 28px 20px;
}

.value-num {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  margin: 0 auto 16px;
}

.value-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.value-text {
  font-size: 15px;
  color: var(--gray);
}

/* ========== Footer ========== */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: 48px 5% 32px;
  text-align: center;
}

.footer-logo {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-text {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ========== Flow Steps ========== */
.flow-container {
  max-width: 700px;
  margin: 0 auto;
}

.flow-step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 23px;
  top: 60px;
  bottom: -20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), rgba(255,107,53,0.2));
}

.flow-num {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(255,107,53,0.3);
}

.flow-content {
  padding-top: 8px;
}

.flow-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.flow-desc {
  font-size: 15px;
  color: var(--gray);
}

/* ========== CTA Section ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #FF8C5A 100%);
  padding: 72px 5%;
  text-align: center;
  color: var(--white);
}

.cta-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-text {
  font-size: 17px;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 28px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

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

.btn-white:hover {
  background: var(--light-gray);
  transform: translateY(-2px);
}

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

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

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 16px; }
  .section-title { font-size: 28px; }
  .section { padding: 56px 5%; }
  .nav-links { display: none; }
  .lang-btn { padding: 8px 14px; font-size: 13px; }
  .cta-title { font-size: 24px; }
}

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

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