/* ===== CSS Variables ===== */
:root {
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --secondary: #ff6b35;
  --accent: #00c853;
  --text: #333333;
  --text-light: #666666;
  --bg: #ffffff;
  --bg-light: #f8f9fa;
  --bg-dark: #2d3748;
  --border: #e2e8f0;
  --shadow: 0 2px 15px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --transition: all 0.3s ease;
  --line-green: #06c755;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Sarabun', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--primary-dark);
}

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Sticky Header ===== */
.sticky-header {
  background: var(--bg);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo img {
  height: 50px;
  width: auto;
}

.logo-text {
  line-height: 1.2;
  white-space: nowrap;
}

.logo-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
}

.logo-text small {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: #7a8794;
  margin-top: 3px;
}

/* ===== Desktop Nav ===== */
.desktop-nav ul {
  display: flex;
  align-items: center;
  gap: 5px;
}

.desktop-nav a {
  padding: 10px 16px;
  color: var(--text);
  font-weight: 500;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
}

.desktop-nav a:hover,
.desktop-nav a.active {
  background: var(--primary);
  color: #fff;
}

.desktop-nav .has-dropdown {
  position: relative;
}

.desktop-nav .dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius);
  min-width: 280px;
  z-index: 100;
  padding: 10px 0;
}

.desktop-nav .has-dropdown:hover .dropdown {
  display: block;
}

.desktop-nav .dropdown a {
  display: block;
  padding: 10px 20px;
  border-radius: 0;
  color: var(--text);
  white-space: normal;
}

.desktop-nav .dropdown a:hover {
  background: var(--bg-light);
  color: var(--primary);
}

/* ===== Hamburger ===== */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  width: 28px;
  height: 3px;
  background: var(--text);
  border-radius: 3px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Mobile Overlay ===== */
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 999;
}

.mobile-overlay.active {
  display: block;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--bg);
  padding: 80px 30px 30px;
  box-shadow: -5px 0 30px rgba(0,0,0,0.2);
  overflow-y: auto;
  transition: right 0.3s ease;
}

.mobile-overlay.active .mobile-nav {
  right: 0;
}

.mobile-nav ul li {
  border-bottom: 1px solid var(--border);
}

.mobile-nav a {
  display: block;
  padding: 14px 0;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 500;
}

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

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}

.hero p {
  font-size: 1.15rem;
  max-width: 700px;
  margin: 0 auto 35px;
  opacity: 0.95;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Page Hero ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 50px 0;
  text-align: center;
}

.page-hero h1 {
  font-size: 2.2rem;
  margin-bottom: 10px;
}

.page-hero p {
  opacity: 0.9;
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  background: var(--bg-light);
  padding: 12px 0;
  font-size: 0.9rem;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.breadcrumb li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--text-light);
}

.breadcrumb a {
  color: var(--text-light);
}

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

.breadcrumb [aria-current="page"] {
  color: var(--primary);
  font-weight: 600;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--secondary);
  color: #fff;
}

.btn-primary:hover {
  background: #e55a2b;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(255,107,53,0.4);
}

.btn-secondary {
  background: #fff;
  color: var(--primary);
}

.btn-secondary:hover {
  background: var(--bg-light);
  color: var(--primary-dark);
}

.btn-line {
  background: var(--line-green);
  color: #fff;
}

.btn-line:hover {
  background: #05a848;
  color: #fff;
}

.btn-phone {
  background: #fff;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-phone:hover {
  background: var(--bg-light);
  color: var(--text);
  border-color: var(--primary);
}

/* ===== Sections ===== */
.features-section,
.services-section,
.stats-section,
.testimonials-section,
.articles-section,
.faq-section {
  padding: 70px 0;
}

.features-section h2,
.services-section h2,
.stats-section h2,
.testimonials-section h2,
.articles-section h2,
.faq-section h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 40px;
  color: var(--text);
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 35px 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
  color: #fff;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Services Grid ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 40px 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  text-align: center;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--secondary), #e55a2b);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 2rem;
  color: #fff;
}

.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--text);
}

.service-card p {
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.7;
}

/* ===== Stats Section ===== */
.stats-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
}

.stats-section h2 {
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-card {
  padding: 20px;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 1rem;
  opacity: 0.9;
}

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.testimonial-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  text-align: center;
}

.testimonial-img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 15px;
  object-fit: cover;
}

.testimonial-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-size: 1.8rem;
  font-weight: 700;
}

.testimonial-card blockquote p {
  color: var(--text-light);
  font-style: italic;
  margin-bottom: 15px;
  line-height: 1.7;
}

.testimonial-card blockquote footer {
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ===== Articles Grid ===== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.article-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.articles-grid .article-card h3 {
  font-size: 0.98rem;
  margin-bottom: 8px;
  line-height: 1.4;
}

.articles-grid .article-card h3 a {
  color: var(--text);
}

.articles-grid .article-card h3 a:hover {
  color: var(--primary);
}

.article-card p {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 10px;
  line-height: 1.5;
}

.read-more {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
}

.read-more:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--secondary) 0%, #e55a2b 100%);
  color: #fff;
  padding: 70px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  opacity: 0.92;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Content Section ===== */
.content-section {
  padding: 60px 0;
}

.content-section .container {
  max-width: 900px;
}

.content-section h2 {
  font-size: 1.8rem;
  color: var(--text);
  margin-bottom: 20px;
}

.content-section h3 {
  font-size: 1.4rem;
  color: var(--text);
  margin: 30px 0 15px;
}

.content-section h4 {
  font-size: 1.15rem;
  color: var(--text);
  margin: 25px 0 10px;
}

.content-section p {
  color: var(--text-light);
  margin-bottom: 15px;
  line-height: 1.8;
}

.content-section ul {
  margin: 15px 0;
  padding-left: 20px;
  list-style: disc;
}

.content-section ol {
  margin: 15px 0 15px 20px;
  padding-left: 20px;
}

.content-section ul li,
.content-section ol li {
  margin-bottom: 10px;
  color: var(--text-light);
  line-height: 1.7;
}

.content-section strong {
  color: var(--text);
}

.content-section a.btn {
  margin-top: 10px;
}

/* ===== Steps ===== */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 30px 0;
  max-width: 820px;
}

.step-card {
  position: relative;
  text-align: left;
  padding: 18px 24px 18px 78px;
  background: var(--bg-light);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.step-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.step-number {
  position: absolute;
  left: 20px;
  top: 22px;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
}

.step-card h3 {
  margin-bottom: 8px;
  color: var(--text);
  font-size: 1.08rem;
}

.step-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 6px;
}

.step-card ul {
  margin: 6px 0 10px;
  padding-left: 20px;
  list-style: disc;
}

.step-card ul li {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 4px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-light);
}

.faq-item {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 25px 30px;
  margin-bottom: 15px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.faq-item h3 {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 10px;
}

.faq-item p {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== Payment ===== */
.payment-info-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 35px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin: 30px 0;
}

.payment-info-card h3 {
  color: var(--primary);
  margin: 0 0 20px;
}

.payment-table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
}

.payment-table th,
.payment-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.payment-table th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text);
  width: 35%;
}

.payment-table td {
  color: var(--text-light);
}

.notice-box {
  background: #fff8e1;
  border: 1px solid #ffd54f;
  border-radius: var(--radius);
  padding: 20px 25px;
  margin: 20px 0;
  color: #5d4037;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Contact ===== */
.contact-methods {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.contact-card {
  position: relative;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 20px 22px 20px 88px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-methods .contact-card h3 {
  font-size: 1.05rem;
  color: var(--text);
  margin: 0 0 6px;
}

.contact-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 4px;
}

.contact-form {
  background: var(--bg);
  padding: 35px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-top: 30px;
}

.contact-form h3 {
  margin-bottom: 25px;
  color: var(--text);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg);
  color: var(--text);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.company-info-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 35px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-top: 30px;
}

.company-info-card h3 {
  color: var(--text);
  margin-bottom: 20px;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.company-table th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text);
  width: 35%;
}

.company-table td {
  color: var(--text-light);
}

/* ===== Article Pages ===== */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 0;
}

.article-content h1 {
  font-size: 2rem;
  color: var(--text);
  margin-bottom: 15px;
  line-height: 1.3;
}

.article-content h2 {
  font-size: 1.5rem;
  color: var(--text);
  margin: 35px 0 15px;
  line-height: 1.3;
}

.article-content h3 {
  font-size: 1.2rem;
  color: var(--text);
  margin: 25px 0 12px;
}

.article-content p {
  color: var(--text-light);
  margin-bottom: 15px;
  line-height: 1.9;
}

.article-content ul,
.article-content ol {
  margin: 15px 0 15px 25px;
}

.article-content ul li,
.article-content ol li {
  color: var(--text-light);
  margin-bottom: 10px;
  line-height: 1.8;
}

.article-content li::marker {
  color: var(--primary);
}

.article-content strong {
  color: var(--text);
}

.article-content a {
  font-weight: 500;
}

.article-meta {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.article-content .btn {
  margin: 10px 5px 10px 0;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: #fff;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 40px;
  padding: 0 20px;
  margin-bottom: 40px;
}

.footer-info h3 {
  font-size: 1.15rem;
  margin-bottom: 15px;
  color: #fff;
}

.footer-info p {
  color: #a0aec0;
  line-height: 1.8;
  font-size: 0.9rem;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 1.05rem;
  margin-bottom: 18px;
  color: #fff;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #a0aec0;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  color: #a0aec0;
  font-size: 0.9rem;
  line-height: 1.7;
  overflow-wrap: break-word;
  word-break: break-word;
}

.footer-contact a {
  color: #a0aec0;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  text-align: center;
  color: #a0aec0;
  font-size: 0.85rem;
  margin: 0 20px;
}

/* ===== Floating Line ===== */
.floating-line {
  position: fixed;
  bottom: 25px;
  left: 25px;
  z-index: 998;
  background: var(--line-green);
  border-radius: 50px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.floating-line:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(6,199,85,0.4);
}

.floating-line .line-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.floating-line .line-text {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-left: 8px;
  white-space: nowrap;
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 997;
  border: none;
  box-shadow: var(--shadow);
}

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

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

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

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

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

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

  .contact-methods {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .desktop-nav {
    display: none;
  }

  .hero {
    padding: 50px 0;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

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

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

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

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

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

  .stat-number {
    font-size: 2.2rem;
  }

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

  .cta-section {
    padding: 50px 0;
  }

  .cta-section h2 {
    font-size: 1.6rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .contact-methods {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 25px;
  }

  .content-section {
    padding: 40px 0;
  }

  .article-content {
    padding: 40px 0;
  }

  .article-content h1 {
    font-size: 1.6rem;
  }

  .logo img {
    height: 40px;
  }

  .logo-text strong {
    font-size: 0.9rem;
  }

  .logo-text small {
    font-size: 0.62rem;
  }

  .floating-line {
    padding: 8px 16px;
  }

  .floating-line .line-icon {
    width: 22px;
    height: 22px;
  }

  .floating-line .line-text {
    font-size: 0.9rem;
    margin-left: 6px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .container {
    padding: 0 15px;
  }

  .header-inner {
    padding: 10px 15px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .page-hero h1 {
    font-size: 1.5rem;
  }

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

  .payment-info-card {
    padding: 25px;
  }

  .payment-table th,
  .payment-table td {
    padding: 10px 12px;
    font-size: 0.85rem;
  }

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