/* ============================================
   陕味 · 陕西特色美食文化网站
   样式表 style.css
   配色：暖色调（红/橙/米黄）
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --primary: #C8351C;
  --primary-dark: #9E2815;
  --primary-light: #E8553A;
  --secondary: #E8721A;
  --accent: #F4A020;
  --accent-light: #FFC04D;
  --bg: #FFF8F0;
  --bg-alt: #FFF0E0;
  --bg-card: #FFFFFF;
  --text: #3D2914;
  --text-light: #7A5C3E;
  --text-muted: #A08060;
  --border: #F0E0CC;
  --white: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(200, 53, 28, 0.08);
  --shadow-md: 0 8px 24px rgba(200, 53, 28, 0.12);
  --shadow-lg: 0 16px 48px rgba(200, 53, 28, 0.18);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* ---------- 通用容器 ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 248, 240, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  transition: var(--transition);
}

.navbar.scrolled .logo {
  color: var(--primary);
}

.logo-icon { font-size: 1.6rem; }

.nav-menu {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  padding: 4px 0;
  transition: var(--transition);
}

.navbar.scrolled .nav-link {
  color: var(--text);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
  color: var(--primary);
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

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

.navbar.scrolled .hamburger span {
  background: var(--primary);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #C8351C 0%, #E8721A 50%, #F4A020 100%);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.08) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 24px;
  max-width: 800px;
  animation: fadeInUp 1s ease-out;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border-radius: 50px;
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.3);
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.2);
  letter-spacing: 4px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}

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

.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
  transform: translateY(-3px);
}

/* 滚动提示 */
.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,0.8);
  font-size: 0.85rem;
  text-align: center;
  animation: bounce 2s infinite;
}

.scroll-arrow {
  font-size: 1.5rem;
  margin-top: 8px;
}

/* 浮动装饰 */
.floating-food {
  position: absolute;
  font-size: 3rem;
  opacity: 0.15;
  z-index: 1;
  animation: float 6s ease-in-out infinite;
}

.floating-1 { top: 15%; left: 10%; animation-delay: 0s; }
.floating-2 { top: 25%; right: 12%; animation-delay: 1.5s; font-size: 4rem; }
.floating-3 { bottom: 25%; left: 15%; animation-delay: 3s; }
.floating-4 { bottom: 20%; right: 10%; animation-delay: 4.5s; font-size: 3.5rem; }

/* ---------- 通用 Section ---------- */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--secondary);
  margin-bottom: 12px;
}

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

.section-desc {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- 美食卡片 ---------- */
.foods-section {
  background: var(--bg);
}

.foods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.food-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.food-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.food-image {
  position: relative;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.food-emoji {
  font-size: 5rem;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
  transition: transform 0.5s ease;
}

.food-card:hover .food-emoji {
  transform: scale(1.2) rotate(-5deg);
}

.food-rank {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 2rem;
  font-weight: 900;
  color: rgba(255,255,255,0.4);
  line-height: 1;
}

/* 12 种卡片渐变 */
.gradient-1  { background: linear-gradient(135deg, #C8351C, #E8553A); }
.gradient-2  { background: linear-gradient(135deg, #E8721A, #F4A020); }
.gradient-3  { background: linear-gradient(135deg, #8B4513, #D2691E); }
.gradient-4  { background: linear-gradient(135deg, #D4A017, #F4C430); }
.gradient-5  { background: linear-gradient(135deg, #C8351C, #FF6B35); }
.gradient-6  { background: linear-gradient(135deg, #E8721A, #FFA500); }
.gradient-7  { background: linear-gradient(135deg, #B8860B, #DAA520); }
.gradient-8  { background: linear-gradient(135deg, #CD853F, #DEB887); }
.gradient-9  { background: linear-gradient(135deg, #D2691E, #F4A460); }
.gradient-10 { background: linear-gradient(135deg, #C8351C, #E8721A); }
.gradient-11 { background: linear-gradient(135deg, #8B4513, #A0522D); }
.gradient-12 { background: linear-gradient(135deg, #A52A2A, #CD5C5C); }

.food-body {
  padding: 24px;
}

.food-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.food-desc {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.food-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}

.food-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--bg-alt);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.food-price {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--secondary);
}

/* ---------- 美食分布地图 ---------- */
.map-section {
  background: var(--bg-alt);
}

.map-container {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 40px;
  align-items: start;
}

/* 左侧地图 */
.map-visual {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.map-region {
  position: relative;
  cursor: pointer;
  transition: var(--transition);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: -2px;
}

.region-shape {
  height: 100%;
  width: 100%;
  transition: var(--transition);
}

.region-north {
  height: 130px;
  background: linear-gradient(135deg, #C4A35A 0%, #D4B36A 50%, #E0C47A 100%);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  clip-path: polygon(8% 0, 92% 0, 100% 100%, 0 100%);
}

.region-central {
  height: 110px;
  background: linear-gradient(135deg, #C8351C 0%, #E8553A 50%, #E8721A 100%);
  clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%);
}

.region-south {
  height: 120px;
  background: linear-gradient(135deg, #3A7D44 0%, #4A9D54 50%, #5AB864 100%);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  clip-path: polygon(5% 0, 95% 0, 100% 100%, 0 100%);
}

.map-region:hover .region-shape {
  filter: brightness(1.1);
  transform: scale(1.02);
}

.map-region.active .region-shape {
  filter: brightness(1.15);
  box-shadow: 0 0 0 3px var(--white), 0 0 0 5px var(--accent);
}

.region-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--white);
  z-index: 2;
  pointer-events: none;
}

.region-name {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
  letter-spacing: 4px;
}

.region-cities {
  display: block;
  font-size: 0.75rem;
  opacity: 0.9;
  margin-top: 4px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.region-icon {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 1.5rem;
  opacity: 0.6;
  z-index: 2;
  pointer-events: none;
}

.map-note {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 16px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* 右侧详情 */
.map-detail {
  min-height: 400px;
}

.region-detail {
  display: none;
  animation: fadeInUp 0.5s ease-out;
}

.region-detail.active {
  display: block;
}

.detail-header {
  margin-bottom: 28px;
}

.detail-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.badge-north { background: linear-gradient(135deg, #C4A35A, #D4B36A); }
.badge-central { background: linear-gradient(135deg, #C8351C, #E8721A); }
.badge-south { background: linear-gradient(135deg, #3A7D44, #5AB864); }

.detail-header h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}

.detail-header p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
}

.region-foods {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.region-food-item {
  display: flex;
  gap: 14px;
  padding: 18px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.region-food-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-light);
}

.food-item-emoji {
  font-size: 2rem;
  flex-shrink: 0;
  line-height: 1;
}

.region-food-item h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.region-food-item p {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
}

/* ---------- 历史文化 ---------- */
.culture-section {
  background: var(--bg-alt);
  position: relative;
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  margin-bottom: 80px;
}

.culture-card {
  background: var(--bg-card);
  padding: 36px 28px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.culture-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.culture-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: inline-block;
  transition: transform 0.5s ease;
}

.culture-card:hover .culture-icon {
  transform: scale(1.15) rotate(5deg);
}

.culture-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.culture-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* 时间线 */
.timeline {
  max-width: 800px;
  margin: 0 auto;
}

.timeline-title {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 48px;
}

.timeline-container {
  position: relative;
  padding-left: 40px;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
  border-radius: 3px;
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -34px;
  top: 6px;
  width: 16px;
  height: 16px;
  background: var(--white);
  border: 3px solid var(--primary);
  border-radius: 50%;
  z-index: 1;
}

.timeline-content {
  background: var(--bg-card);
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--primary);
}

.timeline-year {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--white);
  background: var(--primary);
  padding: 2px 10px;
  border-radius: 50px;
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ---------- 数据统计 ---------- */
.stats-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  text-align: center;
}

.stat-item {
  color: var(--white);
}

.stat-number {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 900;
  line-height: 1;
  display: inline;
}

.stat-plus {
  font-size: 2rem;
  font-weight: 700;
}

.stat-label {
  display: block;
  font-size: 1rem;
  margin-top: 10px;
  opacity: 0.9;
}

/* ---------- 页脚 ---------- */
.footer {
  background: #2D1B0E;
  color: rgba(255,255,255,0.8);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.6);
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-tags span {
  padding: 4px 10px;
  background: rgba(255,255,255,0.1);
  border-radius: 50px;
  font-size: 0.75rem;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

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

.footer-col ul li a,
.footer-col ul li {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}

/* ---------- 回到顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.3rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ---------- 滚动动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 动画 Keyframes ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 968px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  section { padding: 70px 0; }

  .hamburger { display: flex; }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: var(--bg-card);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    box-shadow: -8px 0 32px rgba(0,0,0,0.15);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .nav-menu.active { right: 0; }

  .nav-link {
    color: var(--text) !important;
    font-size: 1.1rem;
  }

  .hero-title { letter-spacing: 2px; }

  .foods-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .map-container {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .map-visual {
    position: static;
    flex-direction: row;
    gap: 8px;
  }

  .region-north, .region-central, .region-south {
    flex: 1;
    height: 100px;
    clip-path: none;
    border-radius: var(--radius-sm);
  }

  .region-name {
    font-size: 1.1rem;
    letter-spacing: 2px;
  }

  .region-cities {
    font-size: 0.65rem;
  }

  .region-icon {
    display: none;
  }

  .region-foods {
    grid-template-columns: 1fr;
  }

  .culture-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  .hero-buttons { flex-direction: column; width: 100%; padding: 0 24px; }
  .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr; }
  .timeline-container { padding-left: 32px; }
  .timeline-dot { left: -26px; }
}

/* ---------- 减少动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}