/* ==================== GCDF Site - Common Styles ==================== */

/* CSS Variables */
:root {
  --primary: #00adbb;
  --primary-dark: #00A09A;
  --secondary: #F5A623;
  --secondary-dark: #E09513;
  --bg-gray: #F5F7FA;
  --bg-light: #F0F9F8;
  --text-dark: #333333;
  --text-medium: #333;
  --text-light: #999999;
  --border-color: #E5E5E5;
  --white: #FFFFFF;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 20px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1920px;
  --header-height: 156px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden!important;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background: #f5f5f5;
}

/* 等比缩放样式 */
html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  background-color: #f5f5f5;
  width: 100%;
}

.scale-wrapper {
  width: 1920px;
  transform-origin: left top;
  position: absolute;
  left: 0;
  top: 0;
  background-color: #f5f5f5;
}

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

ul, ol {
  list-style: none;
}

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

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 0;
}

/* ==================== Header ==================== */
.header {
  width: 1920px;
  background: var(--primary);
  height: var(--header-height);
  /*position: sticky;*/
  top: 0;
  z-index: 1000;
  margin: 0 auto;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.header-inner {
  width: 1668px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-size: 20px;
  font-weight: 700;
}
.logo img {
  width: 350px;
}

.logo-icon {
  display: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-item {
  color: var(--white);
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  font-size: 22px;
  transition: background 0.3s;
  position: relative;
}

.nav-item:hover,
.nav-item.active {
  background: rgba(255,255,255,0.15);
  color: #fff!important;
}

.nav-item.active, .nav-item:hover {
  border-bottom: 3px solid #fff;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--white);
  font-size: 28px;
}

.header-phone img {
  width: 32px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
}

/* ==================== Page Banner ==================== */
.page-banner {
  width: 1920px;
  margin: 0 auto;
  position: relative;
}

.page-banner-content {
  width: 1920px;
}

.page-banner-content img {
  display: block;
  width: 1920px;
  margin: 0 auto;
}
/* ==================== Breadcrumb ==================== */
.breadcrumb {
  width: 1920px;
  background: #fff;
  padding: 14px 0;
  margin: 20px auto 10px auto;
}

.breadcrumb-inner {
  width: 1511px;
  margin: 0 auto;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 30px;
  color: var(--text-medium);
}

.breadcrumb-inner::before {
  content: '您当前位置：';
  color: var(--text-dark);
  font-weight: 800;
}

.breadcrumb-inner a {
  color: var(--text-medium);
  transition: color 0.3s;
}

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

.breadcrumb-inner .current {
  color: var(--primary);
}

.breadcrumb-sep {
  color: #333;
}

/* ==================== Section Title ==================== */
.section-title {
  width: 100%;
  height: 118px;
}

.section-title-content {
  width: 693px;
  height: 118px;
  margin: 0 auto;
  background: url(../images/home_page_title_bg.png) no-repeat;
  text-align: center;
  font-size: 48px;
  font-weight: bold;
  color: #2e3739;
  line-height: 123px;
}

/* ==================== Tab Navigation ==================== */
.tab-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 62px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.tab-nav-item {
  position: relative;
  padding: 14px 42px;
  font-size: 20px;
  color: var(--text-medium);
  cursor: pointer;
  border: 0;
  background: none;
  white-space: nowrap;
  border-radius: 14px;
}

.tab-nav-item:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.tab-nav-item.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.tab-nav-item i {
  position: absolute;
  width: 48px;
  height: 20px;
  background-color: #ffba00;
  border-radius: 50%;
  left: 30px;
  bottom: 12px;
  z-index: 1;
  display: none;
}

.tab-nav-item span {
  position: relative;
  z-index: 2;
}

.tab-nav-item.active i, .tab-nav-item:hover i {
  display: block;
}

/* ==================== Pagination ==================== */
.pagination {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 40px;
}

.pagination-item {
  width: 50px;
  height: 50px;
  display: flex;
  border-radius: 100%;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: #121212;
  margin-left: 12px;
  cursor: pointer;
  border: none;
  background-color: #e7ebef;
}

.pagination-item:hover {
  color: var(--primary);
}

.pagination-item.active {
  background: var(--primary);
  color: var(--white);
}

.pagination ul {
  font-size: 0;
  list-style-type: none;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 40px;
}

.pagination ul li {
  display: inline-block;
  vertical-align: top;
  width: 50px;
  height: 50px;
  display: flex;
  border-radius: 100%;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: #121212;
  margin-left: 12px;
  cursor: pointer;
  border: none;
  background-color: #e7ebef;
}

.pagination ul li:hover {
  color: var(--primary);
}

.pagination ul li.active {
  background: var(--primary);
  color: var(--white);
}

/* ==================== Cards ==================== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* Tag */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

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

.tag-secondary {
  background: var(--secondary);
  color: var(--white);
}

.tag-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

/* ==================== Footer ==================== */
.footer {
  background: #2D3748;
  color: var(--white);
  padding: 50px 0 20px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.footer-inner .copyright {
  text-align: center;
  font-size: 18px;
}

/* ==================== Utility Classes ==================== */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mt-60 { margin-top: 60px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-20 { gap: 20px; }
.gap-30 { gap: 30px; }