:root {
  --header-offset: 122px;
}
body {
  padding-top: var(--header-offset);
  margin: 0;
}
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;600;700&display=swap');
* {
  box-sizing: border-box;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  font-family: 'Be Vietnam Pro', sans-serif;
}
.site-header .header-top {
  background-color: #017439;
  width: 100%;
  min-height: 68px;
}
.site-header .header-top .header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 28px;
}
.site-header .header-top .header-container .logo {
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  text-decoration: none;
  letter-spacing: 1px;
  display: inline-block;
}
.site-header .header-top .header-container .desktop-nav-buttons {
  display: flex;
  align-items: center;
  gap: 12px;
}
.site-header .header-top .header-container .desktop-nav-buttons .btn {
  display: inline-block;
  padding: 9px 22px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: filter 0.2s ease, transform 0.2s ease;
}
.site-header .header-top .header-container .desktop-nav-buttons .btn:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}
.site-header .header-top .header-container .desktop-nav-buttons .btn-login {
  background-color: #C30808;
  color: #FFFF00;
}
.site-header .header-top .header-container .desktop-nav-buttons .btn-register {
  background-color: #C30808;
  color: #FFFF00;
  font-weight: 700;
}
.site-header .header-top .header-container .desktop-nav-buttons .btn-download {
  background-color: #FFFFFF;
  color: #017439;
  border: 2px solid #FFFFFF;
}
.site-header .main-nav {
  background-color: #FFFDF5;
  width: 100%;
  display: flex;
  min-height: 52px;

}
.site-header .main-nav .nav-container {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 4px 28px;
  gap: 4px;
}
.site-header .main-nav .nav-container .nav-link {
  color: #055737;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  padding: 12px 14px;
  border-bottom: 3px solid transparent;
  transition: color 0.2s ease, border-bottom-color 0.2s ease;
  white-space: nowrap;
}
.site-header .main-nav .nav-container .nav-link:hover {
  color: #017439;
  border-bottom-color: #1B8645;
}
.site-header .mobile-nav-buttons {
  display: none;
}
.site-header .hamburger-menu {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 1010;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  border-radius: 6px;
}
.site-header .hamburger-menu .bar {
  display: block;
  width: 24px;
  height: 3px;
  margin: 4px auto;
  background-color: #FFFFFF;
  border-radius: 8px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.site-header .mobile-menu-overlay {
  display: none;
}
.site-footer {
  background-color: #061F17;
  background-image: linear-gradient(145deg, #061F17 0%, #032F1C 100%);
  color: #DCE7E0;
  font-family: 'Be Vietnam Pro', sans-serif;
  padding: 60px 24px 0;
}
.site-footer .footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.site-footer .footer-container .footer-column {
  flex: 1;
  min-width: 200px;
  margin-bottom: 36px;
}
.site-footer .footer-container .footer-brand {
  flex: 2;
  padding-right: 30px;
}
.site-footer .footer-container .footer-brand .footer-logo {
  font-size: 25px;
  font-weight: 700;
  color: #FFFFFF;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.site-footer .footer-container .footer-brand .footer-description {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 18px;
  color: #B9CEC5;
}
.site-footer .footer-container .footer-brand .footer-certifications {
  display: flex;
  gap: 12px;
}
.site-footer .footer-container .footer-brand .footer-certifications .cert-item {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.12);
  color: #FFF;
  padding: 4px 14px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 13px;
}
.site-footer .footer-container .footer-links .footer-title {
  color: #FFFFFF;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}
.site-footer .footer-container .footer-links .footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer .footer-container .footer-links .footer-nav li {
  margin-bottom: 12px;
}
.site-footer .footer-container .footer-links .footer-nav li a {
  color: #D8E9E0;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.2s ease;
  padding: 4px 0;
  display: inline-block;
}
.site-footer .footer-container .footer-links .footer-nav li a:hover {
  color: #8CE04E;
  padding-left: 6px;
}
.site-footer .footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  margin-top: 30px;
  padding: 18px 0;
  text-align: center;
  color: #AABEB5;
  font-size: 14px;
}
.site-footer .footer-bottom p {
  margin: 0;
}
@media (max-width: 768px) {
  :root {
    --header-offset: 110px;
  }
  body {
    padding-top: var(--header-offset);
  }
  .site-header {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
  .site-header .header-top {
    width: 100%;
    min-height: 60px;
  }
  .site-header .header-top .header-container {
    justify-content: center;
    width: 100%;
    max-width: none;
    padding: 12px 60px 10px;
    position: relative;
  }
  .site-header .header-top .header-container .logo {
    font-size: 24px;
    display: block;
    text-align: center;
  }
  .site-header .header-top .header-container .desktop-nav-buttons {
    display: none;
  }
  .site-header .main-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 83%;
    height: 100vh;
    overflow-y: auto;
    background-color: #012D1D;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 70px;
    z-index: 1050;
    box-shadow: 3px 4px 24px rgba(0, 0, 0, 0.4);
    transition: transform 0.4s ease;
    transform: translateX(-100%);
  }
  .site-header .main-nav .nav-container {
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    width: 100%;
    max-width: none;
    padding: 0 20px 20px;
    gap: 4px;
  }
  .site-header .main-nav .nav-container .nav-link {
    color: #FFFFFF;
    font-size: 17px;
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);

    border-bottom: none;
  }
  .site-header .main-nav .nav-container .nav-link:hover {
    color: #FFFFBB;
    border-bottom-color: transparent;
    background: rgba(255, 255, 255, 0.04);
  }
  .site-header .main-nav.active {
    display: block;
    transform: translateX(0);
  }
  .site-header .mobile-nav-buttons {
    display: block;
    background-color: #FFF8E8;
    width: 100%;
    padding: 6px 12px;
    border-bottom: 1px solid #017439;
  }
  .site-header .mobile-nav-buttons .mobile-buttons-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
  }
  .site-header .mobile-nav-buttons .mobile-buttons-container .btn {
    padding: 8px 18px;
    font-size: 13px;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    flex: 1;
    text-align: center;
  }
  .site-header .mobile-nav-buttons .mobile-buttons-container .btn-login, .site-header .mobile-nav-buttons .mobile-buttons-container .btn-register {
    background-color: #C30808;
    color: #FFFF00;
  }
  .site-header .mobile-nav-buttons .mobile-buttons-container .btn-download {
    background-color: #017439;
    color: #FFFFFF;
  }
  .site-header .hamburger-menu {
    display: block;
  }
  .site-header .hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .site-header .hamburger-menu.active .bar:nth-child(2) {
    opacity: 0;
  }
  .site-header .hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .site-header .mobile-menu-overlay {
    display: none;
  }
  .site-header .mobile-menu-overlay.active {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.65);
    z-index: 1040;
  }
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}
@media (min-width: 769px) and (max-width: 992px) {
  .site-header .main-nav .nav-container {
    gap: 6px;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: auto;
    justify-content: center;
    flex-wrap: nowrap;
  }
  .site-header .main-nav .nav-container .nav-link {
    font-size: 14px;
    padding: 12px 8px;
  }
}
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}
/* 内容保护（系统追加，请勿删除） */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input, textarea, select, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}