:root {
  --body-bg-color: #f8fafc;
  --body-text-color: #222222;
  --heading-color: #222222;
  --hero-gradient1: #ebb34f;
  --hero-gradient2: #ffa200;
  --footer-bg-color: #0d0d0d;
  --link-color: #ebb34f;
  --header-bg-color: #ffffff;
  --font-family: system-ui;
  --nav-link-color: #ffa200;
  --footer-text-color: #ffffff;
  --header-text-color: #ffffffff;
}

html {
  overflow-x: hidden;
}

body {
  background-color: var(--body-bg-color) !important;
  color: var(--body-text-color) !important;
  font-family: var(--font-family);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.5rem) !important;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2rem) !important;
}

h3 {
  font-size: clamp(1.4rem, 3vw, 1.7rem) !important;
}

p {
  margin-bottom: 0.5rem !important;
}

section {
  padding: 40px 0;
  scroll-margin-top: 70px;
}

h2 {
  color: var(--hero-gradient2);
}

section img {
  outline: 3px solid var(--hero-gradient1);
  box-shadow: rgba(255, 162, 0, 0.4) 5px 5px, rgba(255, 162, 0, 0.3) 10px 10px, rgba(255, 162, 0, 0.2) 15px 15px, rgba(255, 162, 0, 0.1) 20px 20px, rgba(255, 162, 0, 0.05) 25px 25px;
}

section h2 {
  color: var(--heading-color);
  font-weight: 700;
  line-height: 1.5;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei",
    var(--font-family), -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  position: relative;
  display: inline-block;
  padding: 0.2em 0.4em 0.3em;
  background-image: linear-gradient(120deg,
      rgba(235, 179, 79, 0.18),
      rgba(255, 162, 0, 0.08));
  background-size: 100% 55%;
  background-position: 0 100%;
  background-repeat: no-repeat;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  letter-spacing: 0.04em;
  animation: h2-fade-up 0.6s ease-out both;
}

section h2::before {
  content: "";
  position: absolute;
  left: -0.6em;
  top: 0.1em;
  width: 0.16em;
  height: 80%;
  background: linear-gradient(180deg,
      var(--hero-gradient1),
      var(--hero-gradient2));
  border-radius: 999px;
  box-shadow: 0 0 12px rgba(255, 162, 0, 0.65);
}

section h2::after {
  content: "●";
  margin-left: 0.4em;
  font-size: 0.6em;
  vertical-align: middle;
  color: var(--hero-gradient2);
  opacity: 0.9;
}

.content-area a {
  color: var(--link-color) !important;
  text-decoration: underline !important;
}

.content-area a:hover {
  color: var(--link-color) !important;
  opacity: 0.8;
}

.sidebar-page-list {
  padding: 0;
  margin: 0;
  margin-bottom: 17px;
  width: 279px;
}

.sidebar-page-list li {
  list-style-type: disc;
  list-style-position: inside;
  color: var(--heading-color);
}

.sidebar-page-list li::marker {
  color: var(--link-color);
  font-size: 1.2em;
}

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

.sidebar-page-list li a {
  padding: 12px 0;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  color: var(--link-color);
}

.sidebar-page-list li a:hover {
  padding-left: 11px;
}

.error_page {
  min-height: 70vh;
}


.footer-news {
  background: var(--footer-bg-color);
  padding: 2rem 0 0;
  position: relative;
  overflow: hidden;
  color: var(--footer-text-color);

}

.footer-news a {
  color: var(--link-color);
  text-decoration: none;
  position: relative;
}

.footer-news a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--link-color);
  transition: width 0.3s ease;
}

.footer-news a:hover::after {
  width: 100%;
}

.footer-newsletter h3 {
  color: var(--footer-text-color) !important;
  margin-bottom: 1rem;
  font-weight: 600;
}

.newsletter-form input {
  padding: 0.6rem 1rem;
  border: 1px solid var(--link-color);
  border-radius: 5px;
  font-size: 1rem;
}

.newsletter-form button {
  padding: 0.6rem 1.5rem;
  border: none;
  background: var(--link-color);
  color: #fff;
  font-weight: 600;
  border-radius: 5px;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.newsletter-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(102, 143, 106, 0.2);
}

.footer-social .social-icon {
  font-size: 1.5rem;
  margin: 0 0.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--link-color);
  width: 40px;
  height: 40px;
  line-height: 40px;
  border: 2px solid var(--link-color);
  border-radius: 50%;
  text-align: center;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
  cursor: pointer;
}

.footer-social .social-icon:hover {
  transform: scale(1.2) rotate(-10deg);
  background: var(--link-color);
  color: #fff;
}

.footer-news::after {
  right: 10px;
  top: auto;
  bottom: 10px;
  left: auto;
}

/* Responsive */
@media (max-width: 767px) {

  .newsletter-form input,
  .newsletter-form button {
    width: 100%;
  }
}


.navbar {
  background-color: transparent !important;
  transition: background-color 0.4s ease, box-shadow 0.3s ease;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1030;

}

.navbar.scrolled {
  background-color: var(--header-bg-color) !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero-section {
  padding: 115px 0 30px;
  position: relative;
  overflow: hidden;
  color: var(--header-text-color);
}

.hero-section.with-bg {
  background-image: url('/images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-section.with-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgb(0, 0, 0));
  opacity: 0.5;
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}


@media (max-width: 768px) {
  .hero-section {
    padding: 60px 0;
  }

}

.navbar-light .navbar-nav .nav-link {
  color: var(--nav-link-color, #141414) !important;
}

.navbar-light .navbar-nav .nav-link.active {
  color: var(--link-color) !important;
  font-weight: bold;
}

/* Mobile nav */
@media (max-width: 1199.98px) {
  .navbar-collapse {
    position: fixed;
    top: 61px;
    left: 15px;
    right: 15px;
    background-color: color-mix(in srgb, var(--header-bg-color) 65%, transparent);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    padding: 15px;
    margin: 0;
  }

  .navbar-nav {
    width: 100%;
  }

  .navbar-nav .nav-item {
    margin: 7px 0;
  }

  .navbar-nav .nav-item:hover {
    transform: translateY(-1px);
  }

  .navbar-nav .nav-link {
    font-size: 1.2rem;
    font-weight: 500;
    text-decoration: none;
    display: block;
    padding: 0;
  }

  .navbar-toggler {
    z-index: 10000;
    position: relative;
    border: var(--bs-border-width) solid var(--nav-link-color, #141414) !important;
    background: var(--hero-gradient1);
  }
}


.custom-dropdown {
  border: 0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  border-radius: 12px;
  padding: 0.5rem 0;
  margin-top: 0.5rem;
  min-width: 220px;
  background: color-mix(in srgb,
      var(--header-bg-color) 65%,
      transparent) !important;
  backdrop-filter: blur(12px);
}

.custom-dropdown .dropdown-item {
  padding: 0.75rem 1.5rem;
  transition: all 0.3s ease;
  color: var(--nav-link-color, #141414) !important;
  font-weight: 500;
  border-radius: 0;
  text-wrap: wrap;
}

.dropdown-menu {
  display: none;
}

.custom-dropdown .dropdown-item:hover {
  color: #fff;
  background: color-mix(in srgb,
      var(--header-bg-color) 95%,
      transparent) !important;
}

.nav-item.dropdown>.nav-link {
  display: flex;
  align-items: center;
}

.nav-item.dropdown>.nav-link .arrow {
  position: relative;
  margin-left: auto;
  border: solid var(--nav-link-color, #141414);
  border-width: 0 2px 2px 0;
  padding: 3px;
  transform: rotate(45deg);
  transition: transform 0.25s;
}

.dropdown.open .dropdown-menu {
  display: block;
}

@media (min-width: 1200px) {
  .nav-item.dropdown {
    position: relative;
  }

  .nav-item.dropdown>.nav-link .arrow {
    margin-left: 7px;
  }

  .custom-dropdown.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0;
    z-index: 1000;
  }

  .nav-item.dropdown:hover>.nav-link .arrow {
    transform: rotate(-135deg);
  }

  .nav-item.dropdown:hover>.dropdown-menu {
    display: block !important;
  }
}

@media (max-width: 1199px) {
  .nav-item.dropdown>.nav-link .arrow {
    padding: 4px;
  }
}




.contact-container {
  width: 500px;
  margin: 40px auto;
  padding: 15px 21px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.1);
  color: black !important;
}

@media screen and (max-width: 768px) {
  .contact-container {
    width: 100%;
    padding: 15px;
  }
}

.contact-header {
  text-align: center;
  margin-bottom: 20px;
}

.contact-header i {
  font-size: 2rem;
  color: #0d6efd;
  margin-bottom: 10px;
}

.email-link {
  display: block;
  margin-top: 15px;
  text-align: center;
  font-weight: bold;
  color: var(--hero-gradient2);
  text-decoration: none;
}

.error-text {
  font-size: 8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--hero-gradient2);
  /* eye-catching orange */
  background: linear-gradient(135deg, var(--hero-gradient1), var(--hero-gradient2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;

  display: inline-block;
  margin: 0 auto;
  letter-spacing: -3px;

  /* Soft shadow for depth */
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  .error-text {
    font-size: 5rem;
    letter-spacing: -1px;
  }
}