/* ===== 全局变量与重置 ===== */
:root {
  --primary: #1a5276;
  --primary-light: #2980b9;
  --primary-dark: #0e2f44;
  --accent: #e67e22;
  --accent-light: #f39c12;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --text-dark: #2c3e50;
  --text-gray: #7f8c8d;
  --text-light: #bdc3c7;
  --border: #e0e0e0;
  --shadow: 0 2px 15px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
  --radius: 10px;
  --transition: all 0.3s ease;
  --font-main: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;
  --font-heading: "Noto Serif SC","SimSun","STSong",serif;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--text-dark);
  background: var(--bg-light);
  line-height: 1.8;
  overflow-x: hidden;
}

a {
  color: var(--primary-light);
  text-decoration: none;
  transition: var(--transition);
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 干扰标签区块隐藏 ===== */
.jammer-block {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
  padding: 0;
  margin: -1px;
}

/* ===== 导航栏 ===== */
.site-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  font-weight: bold;
}

.logo-text {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  font-family: var(--font-heading);
  letter-spacing: 2px;
}

.logo-text small {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 1px;
  opacity: 0.8;
}

.header-contact {
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  display: flex;
  gap: 20px;
}

.header-contact span {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* 主导航 */
.main-nav {
  padding: 0;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 0;
}

.nav-list li {
  position: relative;
}

.nav-list a {
  display: block;
  padding: 14px 22px;
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  border-bottom: 3px solid transparent;
}

.nav-list a:hover,
.nav-list a.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
  border-bottom-color: var(--accent);
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 10px;
}

/* ===== 面包屑导航 ===== */
.breadcrumb {
  padding: 12px 0;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
}

.breadcrumb-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  font-size: 0.85rem;
  color: var(--text-gray);
}

.breadcrumb-list li::after {
  content: ">";
  margin-left: 8px;
  color: var(--text-light);
}

.breadcrumb-list li:last-child::after {
  content: "";
}

.breadcrumb-list a {
  color: var(--text-gray);
}

.breadcrumb-list a:hover {
  color: var(--primary-light);
}

/* ===== 横幅区域 ===== */
.hero-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  padding: 60px 0 70px;
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-banner::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(230,126,34,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: 15px;
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero-content p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 700px;
  margin: 0 auto 30px;
}

/* 搜索栏 */
.search-box {
  max-width: 650px;
  margin: 0 auto;
  display: flex;
  background: #fff;
  border-radius: 50px;
  overflow: hidden;
  box-shadow: 0 5px 25px rgba(0,0,0,0.2);
}

.search-box select {
  padding: 15px 20px;
  border: none;
  background: var(--bg-light);
  font-size: 0.95rem;
  color: var(--text-dark);
  cursor: pointer;
  min-width: 140px;
  font-family: var(--font-main);
}

.search-box input {
  flex: 1;
  padding: 15px 20px;
  border: none;
  font-size: 0.95rem;
  font-family: var(--font-main);
  outline: none;
}

.search-box button {
  padding: 15px 30px;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  font-family: var(--font-main);
}

.search-box button:hover {
  background: var(--accent-light);
}

/* ===== 通用区块标题 ===== */
.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--primary-dark);
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 10px auto 0;
  border-radius: 2px;
}

.section-title p {
  color: var(--text-gray);
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 热门签证区块 ===== */
.hot-visa {
  padding: 60px 0;
  background: var(--bg-white);
}

.visa-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

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

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

.visa-card-img {
  height: 180px;
  overflow: hidden;
  position: relative;
}

.visa-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.visa-card:hover .visa-card-img img {
  transform: scale(1.08);
}

.visa-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color: #fff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.visa-card-body {
  padding: 18px;
}

.visa-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--primary-dark);
}

.visa-card-body p {
  font-size: 0.85rem;
  color: var(--text-gray);
  margin-bottom: 12px;
  line-height: 1.6;
}

.visa-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-gray);
}

.visa-card-price {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
}

.btn-primary {
  display: inline-block;
  padding: 10px 24px;
  background: var(--primary-light);
  color: #fff;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

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

.btn-accent {
  display: inline-block;
  padding: 10px 24px;
  background: var(--accent);
  color: #fff;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-accent:hover {
  background: var(--accent-light);
  color: #fff;
}

/* ===== 签证办理流程 ===== */
.visa-process {
  padding: 60px 0;
  background: var(--bg-light);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.process-steps::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: var(--border);
  z-index: 0;
}

.step-item {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-icon {
  width: 80px;
  height: 80px;
  background: var(--bg-white);
  border: 3px solid var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-size: 1.8rem;
  color: var(--primary-light);
  transition: var(--transition);
}

.step-item:hover .step-icon {
  background: var(--primary-light);
  color: #fff;
}

.step-num {
  display: block;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 5px;
}

.step-item h4 {
  font-size: 0.95rem;
  margin-bottom: 5px;
  color: var(--primary-dark);
}

.step-item p {
  font-size: 0.8rem;
  color: var(--text-gray);
}

/* ===== 旅游攻略区块 ===== */
.travel-guide {
  padding: 60px 0;
  background: var(--bg-white);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.guide-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  background: var(--bg-white);
}

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

.guide-card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.guide-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.guide-card:hover .guide-card-img img {
  transform: scale(1.08);
}

.guide-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: #fff;
}

.guide-card-overlay h3 {
  font-size: 1.1rem;
  margin-bottom: 5px;
}

.guide-card-overlay span {
  font-size: 0.8rem;
  opacity: 0.85;
}

.guide-card-body {
  padding: 18px;
}

.guide-card-body p {
  font-size: 0.88rem;
  color: var(--text-gray);
  margin-bottom: 12px;
  line-height: 1.7;
}

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

.guide-tags span {
  padding: 3px 10px;
  background: var(--bg-light);
  border-radius: 15px;
  font-size: 0.75rem;
  color: var(--text-gray);
}

/* ===== FAQ区块 ===== */
.faq-section {
  padding: 60px 0;
  background: var(--bg-light);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--primary-dark);
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary-light);
}

.faq-question .faq-toggle {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--accent);
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  color: var(--text-gray);
  font-size: 0.9rem;
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  padding: 0 24px 18px;
  max-height: 500px;
}

/* ===== 用户评价区块 ===== */
.reviews-section {
  padding: 60px 0;
  background: var(--bg-white);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.review-card {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 25px;
  position: relative;
  transition: var(--transition);
}

.review-card:hover {
  box-shadow: var(--shadow-hover);
}

.review-card::before {
  content: "\201C";
  font-size: 4rem;
  color: var(--primary-light);
  opacity: 0.15;
  position: absolute;
  top: 10px;
  left: 15px;
  font-family: serif;
  line-height: 1;
}

.review-stars {
  color: var(--accent);
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.review-card p {
  font-size: 0.9rem;
  color: var(--text-dark);
  margin-bottom: 15px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.review-author-info {
  font-size: 0.85rem;
}

.review-author-info strong {
  display: block;
  color: var(--primary-dark);
}

.review-author-info span {
  color: var(--text-gray);
  font-size: 0.78rem;
}

/* ===== 新闻动态区块 ===== */
.news-section {
  padding: 60px 0;
  background: var(--bg-light);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

.news-card {
  display: flex;
  gap: 18px;
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
}

.news-date {
  min-width: 65px;
  text-align: center;
  padding: 10px;
  background: var(--primary-light);
  border-radius: var(--radius);
  color: #fff;
}

.news-date .day {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
}

.news-date .month {
  font-size: 0.75rem;
  opacity: 0.9;
}

.news-body h3 {
  font-size: 1rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.news-body p {
  font-size: 0.85rem;
  color: var(--text-gray);
  line-height: 1.6;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 50px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-about h3,
.footer-links h3 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 15px;
  font-family: var(--font-heading);
}

.footer-about p {
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: 15px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 5px;
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}

.footer-bottom a {
  color: rgba(255,255,255,0.6);
}

/* ===== 内页通用 ===== */
.page-banner {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 40px 0;
  text-align: center;
  color: #fff;
}

.page-banner h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 10px;
}

.page-banner p {
  opacity: 0.85;
  font-size: 1rem;
}

.page-content {
  padding: 50px 0;
}

.content-wrapper {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 30px;
}

.main-content {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.main-content h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--primary-dark);
  margin: 25px 0 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--bg-light);
}

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

.main-content p {
  margin-bottom: 15px;
  line-height: 1.9;
  font-size: 0.95rem;
}

.main-content ul, .main-content ol {
  margin: 10px 0 15px 20px;
  line-height: 2;
  font-size: 0.93rem;
}

.main-content img {
  border-radius: var(--radius);
  margin: 15px 0;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.sidebar-widget {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.sidebar-widget h3 {
  font-size: 1rem;
  color: var(--primary-dark);
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
}

.sidebar-widget ul {
  list-style: none;
}

.sidebar-widget li {
  padding: 8px 0;
  border-bottom: 1px solid var(--bg-light);
  font-size: 0.88rem;
}

.sidebar-widget li:last-child {
  border-bottom: none;
}

.sidebar-widget a {
  color: var(--text-dark);
}

.sidebar-widget a:hover {
  color: var(--primary-light);
}

/* ===== 联系表单 ===== */
.contact-form {
  max-width: 700px;
}

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

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: var(--font-main);
  transition: var(--transition);
  background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary-light);
  outline: none;
  box-shadow: 0 0 0 3px rgba(41,128,185,0.1);
}

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

/* ===== 表格样式 ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
  font-size: 0.9rem;
}

.data-table th {
  background: var(--primary);
  color: #fff;
  padding: 12px 15px;
  text-align: left;
  font-weight: 600;
}

.data-table td {
  padding: 10px 15px;
  border-bottom: 1px solid var(--border);
}

.data-table tr:nth-child(even) {
  background: var(--bg-light);
}

.data-table tr:hover {
  background: rgba(41,128,185,0.05);
}

/* ===== 动画效果 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.slide-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
  .visa-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .process-steps::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .header-top {
    flex-direction: column;
    gap: 10px;
  }
  .header-contact {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
  }
  .nav-list.open {
    display: flex;
  }
  .nav-list a {
    padding: 12px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  .hero-content h1 {
    font-size: 1.6rem;
  }
  .search-box {
    flex-direction: column;
    border-radius: var(--radius);
  }
  .search-box select,
  .search-box input,
  .search-box button {
    border-radius: 0;
  }
  .visa-grid {
    grid-template-columns: 1fr;
  }
  .guide-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .content-wrapper {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .section-title h2 {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
  .news-card {
    flex-direction: column;
  }
}