/* ========================================
   jipiao5.com - 团队机票同业官网
   设计风格：简约商务，深蓝+浅灰配色
   ======================================== */

/* ===== CSS 变量 ===== */
:root {
  --color-primary: #0a2463;       /* 深蓝主色 */
  --color-primary-dark: #061a49;  /* 深蓝深色 */
  --color-primary-light: #1e3a8a; /* 深蓝浅色 */
  --color-secondary: #3e89fd;     /* 亮蓝辅助色 */
  --color-accent: #f59e0b;        /* 金色点缀 */
  --color-bg: #f8fafc;            /* 浅灰背景 */
  --color-bg-white: #ffffff;
  --color-bg-gray: #f1f5f9;
  --color-text-primary: #1e293b;  /* 主要文字 */
  --color-text-secondary: #64748b; /* 次要文字 */
  --color-text-light: #94a3b8;    /* 浅文字 */
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-error: #ef4444;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

/* ===== 页面通用 ===== */
.section {
  padding: 80px 0;
}

.section-gray {
  background-color: var(--color-bg-gray);
}

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

.section-title h2 {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--color-secondary);
  border-radius: 2px;
}

.section-title p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  margin-top: 24px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 顶部公告条 ===== */
.top-bar {
  background: var(--color-primary);
  color: #e2e8f0;
  font-size: 0.85rem;
  padding: 8px 0;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar .notice {
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-bar .notice::before {
  content: '★';
  color: var(--color-accent);
}

.top-bar .contact-info {
  display: flex;
  gap: 24px;
}

.top-bar .contact-info span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ===== 导航栏 ===== */
.header {
  background: var(--color-bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  font-weight: 800;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .sub {
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  font-weight: 400;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-menu a {
  color: var(--color-text-primary);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

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

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-secondary);
  border-radius: 1px;
}

.nav-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-md);
  font-weight: 600 !important;
  transition: var(--transition);
}

.nav-cta:hover {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: white !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 移动端菜单按钮 */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero Banner ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #1e40af 100%);
  color: white;
  padding: 100px 0 120px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(62,137,253,0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(62,137,253,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.9rem;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero h1 {
  font-size: 2.8rem;
  color: white;
  margin-bottom: 20px;
  line-height: 1.25;
}

.hero h1 .highlight {
  color: #93c5fd;
}

.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.hero-tag {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.9rem;
  backdrop-filter: blur(5px);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245,158,11,0.4);
  color: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
  color: white;
}

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

.btn-dark:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== 核心业务板块 ===== */
.business-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.business-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.business-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.business-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.business-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #e0efff, #dbeafe);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: var(--transition);
}

.business-card:hover .business-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  transform: scale(1.1);
}

.business-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.business-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.business-link {
  font-size: 0.9rem;
  color: var(--color-secondary);
  font-weight: 500;
}

.business-link:hover {
  color: var(--color-primary);
}

/* ===== 同业优势 ===== */
.advantages {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-gray) 100%);
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-item {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.advantage-item:hover {
  box-shadow: var(--shadow-lg);
}

.advantage-num {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.1;
  line-height: 1;
  margin-bottom: 8px;
}

.advantage-item h4 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.advantage-item p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== 表单区块 ===== */
.form-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.form-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(62,137,253,0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.form-section .container {
  position: relative;
  z-index: 1;
}

.form-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.form-info h2 {
  color: white;
  font-size: 2rem;
  margin-bottom: 16px;
}

.form-info > p {
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.form-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.form-feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.form-feature h4 {
  color: white;
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.form-feature p {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

/* 表单 */
.contact-form {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-xl);
  color: var(--color-text-primary);
}

.contact-form h3 {
  color: var(--color-primary);
  font-size: 1.4rem;
  margin-bottom: 8px;
  text-align: center;
}

.contact-form .form-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

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

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.form-group label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-text-primary);
  background: var(--color-bg-white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(62,137,253,0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 90px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 20px 0;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.form-checkbox input[type="checkbox"] {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.form-checkbox a {
  color: var(--color-secondary);
  text-decoration: underline;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit:hover {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(10,36,99,0.3);
}

.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.form-tip {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 12px;
}

/* ===== 资讯中心 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.news-thumb {
  height: 180px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  position: relative;
  overflow: hidden;
}

.news-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.news-category {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255,255,255,0.95);
  color: var(--color-primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 1;
}

.news-content {
  padding: 24px;
}

.news-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.news-card h4 {
  font-size: 1.1rem;
  color: var(--color-text-primary);
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card:hover h4 {
  color: var(--color-primary);
}

.news-excerpt {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  text-align: center;
  margin-top: 48px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--color-secondary);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: var(--transition);
}

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

.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg-gray);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-icon {
  background: var(--color-primary);
  color: white;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 20px;
}

/* ===== 关于我们 ===== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  color: var(--color-primary);
  margin-bottom: 20px;
}

.about-text p {
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  line-height: 1.9;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.stat-item {
  text-align: center;
  padding: 20px 12px;
  background: var(--color-bg-gray);
  border-radius: var(--radius-md);
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.about-visual {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.about-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M50 50v-6h-6v6h-6v6h6v6h6v-6h6v-6h-6zm0-50v-6h-6v6h-6v6h6v6h6V12h6V6h-6zM6 50v-6H0v6H0v6h6v6h6v-6h6v-6h-6zM6 6V0H0v6H0v6h6v6h6V12h6V6h-6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.about-visual-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px;
}

.about-visual-content h3 {
  color: white;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.about-visual-content p {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== 资质展示 ===== */
.qualification-section {
  background: var(--color-bg-gray);
}

.qual-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.qual-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.qual-card h4 {
  color: var(--color-primary);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.qual-card p {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  line-height: 1.7;
}

/* ===== 内页Banner ===== */
.page-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: white;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(62,137,253,0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  color: white;
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.page-banner p {
  color: rgba(255,255,255,0.85);
  font-size: 1.05rem;
  max-width: 600px;
}

.breadcrumb {
  margin-top: 16px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

.breadcrumb a {
  color: rgba(255,255,255,0.8);
}

.breadcrumb a:hover {
  color: white;
}

.breadcrumb .sep {
  margin: 0 8px;
  opacity: 0.5;
}

/* ===== 业务详情页 ===== */
.business-detail-section {
  padding: 60px 0;
}

.business-detail-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.business-detail-card h2 {
  color: var(--color-primary);
  font-size: 1.6rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.business-detail-card h2 .icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.4rem;
}

.business-detail-card p {
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.business-detail-card ul {
  margin: 16px 0;
}

.business-detail-card li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.business-detail-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--color-success);
  color: white;
  border-radius: 50%;
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

/* ===== 文章详情页 ===== */
.article-container {
  max-width: 820px;
  margin: 0 auto;
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-sm);
}

.article-meta {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.article-container h1 {
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.article-body {
  color: var(--color-text-primary);
  line-height: 2;
  font-size: 1rem;
}

.article-body h2 {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin: 32px 0 16px;
}

.article-body h3 {
  font-size: 1.2rem;
  color: var(--color-text-primary);
  margin: 24px 0 12px;
}

.article-body p {
  margin-bottom: 16px;
  color: var(--color-text-secondary);
}

.article-body ul, .article-body ol {
  margin: 16px 0;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 10px;
  color: var(--color-text-secondary);
  list-style: disc;
}

.article-body strong {
  color: var(--color-primary);
}

/* ===== 政策页面 ===== */
.policy-container {
  max-width: 880px;
  margin: 0 auto;
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-sm);
}

.policy-container h1 {
  color: var(--color-primary);
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.policy-update {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.policy-content h2 {
  color: var(--color-primary);
  font-size: 1.3rem;
  margin: 32px 0 16px;
}

.policy-content h3 {
  color: var(--color-text-primary);
  font-size: 1.1rem;
  margin: 24px 0 12px;
}

.policy-content p {
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 14px;
}

.policy-content ul, .policy-content ol {
  margin: 12px 0;
  padding-left: 24px;
}

.policy-content li {
  margin-bottom: 8px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  list-style: decimal;
}

/* ===== 服务范围 ===== */
.coverage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.coverage-item {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.coverage-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.coverage-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.coverage-item h4 {
  color: var(--color-primary);
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.coverage-item p {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* ===== 合作流程 ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-step {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}

.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.step-num {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
}

.step-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  margin-top: 8px;
}

.process-step h4 {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.process-step p {
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* ===== 底部CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: white;
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(62,137,253,0.25) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(62,137,253,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-content h2 {
  color: white;
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.cta-content p {
  color: rgba(255,255,255,0.85);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.cta-content .btn-primary {
  font-size: 1.05rem;
  padding: 14px 40px;
}

/* ===== 政策页面提示框 ===== */
.policy-notice-box {
  background: #eff6ff;
  border-left: 4px solid var(--color-secondary);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}

.policy-notice-box p {
  margin-bottom: 0;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.policy-notice-box strong {
  color: var(--color-primary);
}

.policy-footer-note {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.policy-footer-note p {
  margin-bottom: 0;
  color: var(--color-text-light);
  font-style: italic;
}

/* ===== 页脚 ===== */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 24px;
}

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

.footer-brand .logo {
  color: white;
  margin-bottom: 16px;
}

.footer-brand .logo .logo-icon {
  background: linear-gradient(135deg, var(--color-secondary), #60a5fa);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.footer-notice {
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: #fbbf24;
  line-height: 1.6;
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-secondary);
  border-radius: 1px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: white;
  padding-left: 4px;
}

.footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 12px;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.footer-contact .label {
  color: #64748b;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: #64748b;
}

.footer-bottom-links a:hover {
  color: white;
}

/* ===== 弹窗 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  box-shadow: var(--shadow-xl);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, #10b981, #34d399);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  animation: scaleIn 0.4s ease;
}

@keyframes scaleIn {
  0% { transform: scale(0); }
  60% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.modal h3 {
  color: var(--color-primary);
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.modal p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.modal-notice {
  background: #fef3c7;
  border: 1px solid #fde68a;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: #92400e;
  line-height: 1.6;
  margin-bottom: 24px;
  text-align: left;
}

.modal-close {
  width: 100%;
  padding: 12px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--color-primary-dark);
}

/* ===== 返回顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 99;
  border: none;
  font-size: 1.2rem;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* ===== 分页组件 ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  text-decoration: none;
}

.pagination a:hover {
  border-color: var(--color-secondary);
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.pagination .current {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  border-color: transparent;
  font-weight: 600;
}

.pagination .dots {
  border: none;
  background: transparent;
  color: var(--color-text-light);
}

.pagination .prev,
.pagination .next {
  font-weight: 500;
}

/* ===== 资讯列表页 ===== */
.news-list-section {
  padding: 60px 0 80px;
}

.news-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* ===== 相关文章推荐 ===== */
.related-articles {
  margin-top: 60px;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.related-articles h3 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 28px;
  position: relative;
  padding-left: 14px;
}

.related-articles h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  background: var(--color-secondary);
  border-radius: 2px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.related-card-thumb {
  height: 120px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  position: relative;
}

.related-card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.related-card-body {
  padding: 16px;
}

.related-card-body h4 {
  font-size: 0.95rem;
  color: var(--color-text-primary);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card:hover h4 {
  color: var(--color-primary);
}

.related-card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.related-card-category {
  color: var(--color-secondary);
  font-weight: 500;
}

/* ===== 底部CTA ===== */
.bottom-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-top: 60px;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.bottom-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(62,137,253,0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.bottom-cta::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245,158,11,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.bottom-cta-content {
  position: relative;
  z-index: 1;
}

.bottom-cta h3 {
  color: white;
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.bottom-cta p {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  margin-bottom: 28px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.bottom-cta .btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 14px 40px;
  font-size: 1.05rem;
}

.bottom-cta .btn-primary:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245,158,11,0.4);
}

/* ===== 文章分类标签 ===== */
.article-category-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 16px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .business-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .news-list-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .form-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .coverage-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 20px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .section-title {
    margin-bottom: 40px;
  }

  .section-title h2 {
    font-size: 1.5rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .top-bar .contact-info {
    display: none;
  }

  .nav {
    height: 64px;
  }

  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg-white);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu a {
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-menu a:last-child {
    border-bottom: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero {
    padding: 60px 0 80px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

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

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

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

  .news-list-grid {
    grid-template-columns: 1fr;
  }

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

  .bottom-cta {
    padding: 32px 24px;
  }

  .bottom-cta h3 {
    font-size: 1.3rem;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 24px;
  }

  .page-banner {
    padding: 60px 0;
  }

  .page-banner h1 {
    font-size: 1.6rem;
  }

  .business-detail-card {
    padding: 28px 20px;
  }

  .business-detail-card h2 {
    font-size: 1.3rem;
  }

  .article-container,
  .policy-container {
    padding: 28px 20px;
  }

  .article-container h1 {
    font-size: 1.4rem;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

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

  .stat-label {
    font-size: 0.75rem;
  }

  .coverage-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .coverage-item {
    padding: 20px 14px;
  }

  .coverage-icon {
    font-size: 1.8rem;
  }

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

  .cta-content h2 {
    font-size: 1.4rem;
  }

  .cta-content p {
    font-size: 0.95rem;
  }

  .modal {
    padding: 36px 24px;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero-tags {
    gap: 8px;
  }

  .hero-tag {
    font-size: 0.8rem;
    padding: 6px 12px;
  }

  .section {
    padding: 48px 0;
  }
}