* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: #f5f7fa;
  color: #2c3e50;
  line-height: 1.8;
}
a {
  color: #1a6fb5;
  text-decoration: none;
  transition: color 0.3s;
}
a:hover {
  color: #e67e22;
}
.my-logo {
  font-family: 'Arial Black', sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #fff;
  background: linear-gradient(135deg, #1a5276, #2e86de);
  padding: 10px 20px;
  border-radius: 12px;
  display: inline-block;
  white-space: nowrap;
}
.my-logo span {
  color: #f39c12;
}
header {
  background: #1a5276;
  color: #fff;
  padding: 15px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
}
.nav-toggle {
  display: none;
}
.nav-menu {
  display: flex;
  list-style: none;
  gap: 20px;
  flex-wrap: wrap;
}
.nav-menu li a {
  color: #fff;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background 0.3s;
}
.nav-menu li a:hover {
  background: rgba(255,255,255,0.15);
  color: #f39c12;
}
.hamburger {
  display: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: #fff;
}
.breadcrumb {
  background: #eaf2f8;
  padding: 12px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid #d4e6f1;
}
.breadcrumb-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.breadcrumb a {
  color: #1a5276;
}
.breadcrumb a:hover {
  color: #e67e22;
}
.breadcrumb span {
  margin: 0 8px;
  color: #7f8c8d;
}
.main-container {
  max-width: 1200px;
  margin: 30px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}
article {
  background: #fff;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  overflow: hidden;
}
h1 {
  font-size: 2.5rem;
  line-height: 1.3;
  color: #1a5276;
  margin-bottom: 15px;
  border-left: 6px solid #e67e22;
  padding-left: 20px;
}
h2 {
  font-size: 1.8rem;
  color: #1a5276;
  margin: 45px 0 20px;
  position: relative;
  padding-bottom: 10px;
}
h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: #e67e22;
  border-radius: 3px;
}
h3 {
  font-size: 1.3rem;
  color: #2c3e50;
  margin: 30px 0 12px;
}
h4 {
  font-size: 1.1rem;
  color: #34495e;
  margin: 20px 0 10px;
}
p {
  margin-bottom: 16px;
  text-align: justify;
}
.meta-box {
  background: #fef9e7;
  border-left: 4px solid #f39c12;
  padding: 15px 20px;
  border-radius: 8px;
  margin: 20px 0;
  font-size: 0.95rem;
}
.meta-box strong {
  color: #1a5276;
}
.highlight-box {
  background: #e8f6f3;
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
  border: 1px solid #a3d9c9;
}
.con-tip {
  background: #fdf0e7;
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
  border: 1px solid #f5cba7;
}
.con-tip strong {
  color: #e67e22;
}
.step-card {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  background: #f8f9fa;
  border-radius: 12px;
  padding: 18px;
  transition: transform 0.3s;
}
.step-card:hover {
  transform: translateX(8px);
  background: #fef9e7;
}
.step-num {
  background: #1a5276;
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.step-content {
  flex: 1;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
  font-size: 0.95rem;
}
table, th, td {
  border: 1px solid #dce1e5;
}
th {
  background: #1a5276;
  color: #fff;
  padding: 12px;
  text-align: left;
}
td {
  padding: 12px;
  background: #fff;
}
tr:nth-child(even) td {
  background: #f8f9fa;
}
tr:hover td {
  background: #eaf2f8;
}
.img-wrapper {
  margin: 30px 0;
  text-align: center;
}
.img-wrapper img {
  max-width: 100%;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}
.img-wrapper figcaption {
  font-size: 0.85rem;
  color: #7f8c8d;
  margin-top: 8px;
}
.search-section {
  background: #eaf2f8;
  border-radius: 16px;
  padding: 25px;
  margin: 30px 0;
  text-align: center;
}
.search-section form {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.search-section input[type="text"] {
  flex: 1;
  max-width: 450px;
  padding: 12px 20px;
  border: 2px solid #1a5276;
  border-radius: 50px;
  font-size: 1rem;
  outline: none;
}
.search-section button {
  padding: 12px 28px;
  background: #1a5276;
  color: #fff;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}
.search-section button:hover {
  background: #e67e22;
}
.comment-box, .rating-box {
  background: #f8f9fa;
  border-radius: 16px;
  padding: 25px;
  margin: 30px 0;
}
.comment-box textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #dce1e5;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  min-height: 100px;
  outline: none;
  transition: border 0.3s;
}
.comment-box textarea:focus {
  border-color: #1a5276;
}
.comment-box input, .rating-box select {
  padding: 10px 16px;
  border: 2px solid #dce1e5;
  border-radius: 8px;
  font-size: 0.95rem;
  margin-bottom: 12px;
  width: 100%;
}
.submit-btn {
  background: #1a5276;
  color: #fff;
  border: none;
  padding: 12px 30px;
  border-radius: 50px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}
.submit-btn:hover {
  background: #e67e22;
}
.friend-links {
  background: #2c3e50;
  color: #fff;
  padding: 40px 20px;
  margin-top: 40px;
}
.friend-links-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}
.friend-links-container h3 {
  color: #f39c12;
  margin-bottom: 20px;
}
friend-link {
  display: inline-block;
  margin: 8px;
  padding: 10px 24px;
  background: rgba(255,255,255,0.1);
  border-radius: 50px;
  transition: background 0.3s;
}
friend-link a {
  color: #ecf0f1;
  font-weight: 500;
}
friend-link:hover {
  background: rgba(255,255,255,0.25);
}
.copyright {
  background: #1a252f;
  color: #7f8c8d;
  text-align: center;
  padding: 20px;
  font-size: 0.85rem;
}
.copyright p {
  text-align: center;
  margin-bottom: 5px;
}
.quiz-table {
  background: #fef9e7;
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: #e67e22;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin: 30px 0;
}
.stat-card {
  background: #f8f9fa;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  border-top: 4px solid #1a5276;
}
.stat-card .stat-title {
  font-size: 0.9rem;
  color: #7f8c8d;
}
.faq-item {
  margin-bottom: 15px;
  border: 1px solid #dce1e5;
  border-radius: 10px;
  overflow: hidden;
}
.faq-item summary {
  padding: 15px;
  cursor: pointer;
  background: #f8f9fa;
  font-weight: 600;
  color: #1a5276;
  outline: none;
}
.faq-item summary:hover {
  background: #eaf2f8;
}
.faq-item p {
  padding: 10px 15px;
}
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }
  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    background: #1a5276;
    padding: 15px;
    border-radius: 12px;
  }
  .nav-menu.open {
    display: flex;
  }
  .header-container {
    flex-wrap: wrap;
    justify-content: space-between;
  }
  .my-logo {
    font-size: 1.6rem;
  }
  h1 {
    font-size: 1.8rem;
  }
  h2 {
    font-size: 1.4rem;
  }
  article {
    padding: 20px;
  }
  .step-card {
    flex-direction: column;
  }
  .step-num {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
}
@media (max-width: 480px) {
  .my-logo {
    font-size: 1.3rem;
  }
  .breadcrumb-container {
    font-size: 0.8rem;
  }
  .main-container {
    padding: 0 10px;
  }
  article {
    padding: 15px;
    border-radius: 12px;
  }
  .search-section form {
    flex-direction: column;
  }
  .search-section input[type="text"] {
    max-width: 100%;
  }
}