/* roulang page: index */
:root {
  --bamboo: #0B5D3B;
  --bamboo-dark: #14452F;
  --bamboo-deeper: #0C3D2E;
  --panda-black: #1C1C1A;
  --orange: #F47421;
  --orange-dark: #E05D14;
  --bamboo-light: #2FB584;
  --bamboo-bright: #34D399;
  --bg-warm: #FAF9F6;
  --bg-gray: #F3F2EE;
  --white: #FFFFFF;
  --text-main: #22221F;
  --text-secondary: #6F6E69;
  --text-muted: #9CA3AF;
  --border: #E6E4DE;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-sm: 0 12px 40px rgba(15, 49, 35, 0.07);
  --shadow-hover: 0 20px 55px rgba(15, 49, 35, 0.14);
  --shadow-btn: 0 8px 20px rgba(244, 116, 33, 0.3);
  --gradient-hero: linear-gradient(135deg, #14452F, #0B5D3B 50%, #1C1C1A);
  --gradient-cta: linear-gradient(135deg, #F47421, #FB9B45);
  --gradient-bar: linear-gradient(90deg, #0B5D3B, #2FB584);
  --font-main: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  object-fit: cover;
}
a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}
button {
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
}
ul, ol {
  list-style: none;
}
:focus-visible {
  outline: 3px solid rgba(11, 93, 59, 0.35);
  outline-offset: 2px;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 84px;
  background: rgba(250, 249, 246, 0.97);
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: height 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}
.site-header.scrolled {
  height: 64px;
  background: var(--white);
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(15, 49, 35, 0.06);
}
.header-inner {
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}
.nav-left {
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-main);
  padding: 8px 2px;
  position: relative;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--bamboo);
  transition: width 0.3s ease;
}
.nav-link:hover {
  color: var(--bamboo);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-link.active {
  color: var(--bamboo);
  font-weight: 600;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-self: center;
  padding: 0 12px;
}
.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}
.brand-name {
  display: flex;
  align-items: baseline;
  line-height: 1;
}
.brand-text {
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--panda-black);
}
.brand-badge {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--bamboo);
  background: rgba(11, 93, 59, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 5px;
  letter-spacing: 0.03em;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(11, 93, 59, 0.06);
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--panda-black);
  border-radius: 2px;
  transition: all 0.25s ease;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg-warm);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
.mobile-menu.open {
  transform: translateX(0);
}
.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
}
.mobile-close {
  width: 42px;
  height: 42px;
  font-size: 28px;
  line-height: 1;
  color: var(--panda-black);
  background: var(--bg-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.mobile-close:hover {
  background: rgba(11, 93, 59, 0.1);
  color: var(--bamboo);
  transform: rotate(90deg);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-nav a {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 16px 8px;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.mobile-nav a:hover {
  color: var(--bamboo);
  padding-left: 16px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  min-height: 48px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--gradient-cta);
  color: var(--white);
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--orange-dark), #e88a35);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(244, 116, 33, 0.35);
}
.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--white);
  background: transparent;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--white);
}
.btn-outline-green {
  border-color: var(--bamboo);
  color: var(--bamboo);
  background: transparent;
}
.btn-outline-green:hover {
  background: rgba(11, 93, 59, 0.08);
  border-color: var(--bamboo-dark);
  transform: translateY(-2px);
}
.btn-white {
  background: var(--white);
  color: var(--panda-black);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
.btn-white:hover {
  background: #f0eeea;
  transform: translateY(-2px);
}
.btn-outline-white {
  border-color: rgba(255, 255, 255, 0.8);
  color: var(--white);
  background: transparent;
}
.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--white);
}

/* ===== Section common ===== */
.section-eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--bamboo);
  background: rgba(11, 93, 59, 0.08);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--panda-black);
}
.section-header p {
  margin-top: 16px;
  color: var(--text-secondary);
  font-size: 1.0625rem;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.32;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 72% 28%, rgba(47, 181, 132, 0.28), transparent 58%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 24px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 8px 22px;
  border-radius: var(--radius-pill);
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--white);
  letter-spacing: 0.01em;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
}
.hero-sub {
  font-size: clamp(1.0625rem, 2vw, 1.375rem);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
  max-width: 660px;
  margin: 24px auto 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.scroll-down {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  z-index: 3;
  animation: bounceDown 2s infinite;
  transition: all 0.2s ease;
}
.scroll-down:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
}
@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Pain ===== */
.pain-section {
  padding: 96px 0;
  background: var(--bg-warm);
}
.pain-grid {
  display: grid;
  grid-template-columns: 55% 45%;
  gap: 60px;
  align-items: center;
}
.pain-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--panda-black);
  margin-bottom: 20px;
}
.pain-text p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  margin-bottom: 28px;
  max-width: 560px;
}
.pain-text ul li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-weight: 500;
  color: var(--text-main);
}
.pain-text ul li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--bamboo-light);
  font-size: 0.875rem;
}
.pain-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 3px solid var(--bamboo-light);
  position: relative;
}
.pain-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

/* ===== Solution ===== */
.solution-section {
  padding: 96px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.solution-card {
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}
.solution-card .card-top-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-bar);
}
.solution-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.solution-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: rgba(11, 93, 59, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--bamboo);
  margin-bottom: 20px;
  transition: all 0.3s ease;
}
.solution-card:hover .solution-icon {
  background: var(--bamboo);
  color: var(--white);
}
.solution-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--panda-black);
}
.solution-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}
.solution-card-large {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  transition: all 0.3s ease;
}
.solution-card-large .card-top-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-bar);
  z-index: 2;
}
.solution-card-large:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.solution-card-img img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
}
.solution-card-body {
  padding: 48px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.solution-card-body h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--panda-black);
  margin-bottom: 16px;
}
.solution-card-body p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
}
.solution-card-wide {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  position: relative;
  overflow: hidden;
}
.solution-card-wide .solution-icon {
  flex-shrink: 0;
  margin-bottom: 0;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.solution-card-wide h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--panda-black);
}
.solution-card-wide p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  max-width: 800px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 96px 0;
  background: var(--bg-warm);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}
.faq-item:hover {
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 28px;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--panda-black);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--bamboo);
}
.faq-item summary::after {
  content: '\f067';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.875rem;
  color: var(--bamboo);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item .faq-answer {
  padding: 0 28px 24px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.8;
  max-width: 760px;
}

/* ===== Stats ===== */
.stats-section {
  padding: 72px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.stats-panel {
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  overflow: hidden;
}
.stats-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-bar);
}
.stat-item {
  text-align: center;
  padding: 16px 0;
}
.stat-number {
  display: block;
  font-size: clamp(2rem, 3vw, 3.25rem);
  font-weight: 800;
  color: var(--bamboo);
  line-height: 1.2;
  margin-bottom: 10px;
}
.stat-item:nth-child(2) .stat-number,
.stat-item:nth-child(4) .stat-number {
  color: var(--orange);
}
.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* ===== Testimonials ===== */
.testimonial-section {
  padding: 96px 0;
  background: var(--bg-gray);
  border-top: 1px solid var(--border);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  transition: all 0.3s ease;
}
.testimonial-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 32px;
  bottom: 32px;
  width: 4px;
  background: var(--bamboo-light);
  border-radius: 0 4px 4px 0;
}
.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.testimonial-quote {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 24px;
  position: relative;
  padding-left: 8px;
}
.testimonial-quote::before {
  content: '\f10d';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--bamboo-light);
  opacity: 0.4;
  display: block;
  margin-bottom: 12px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-bar);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}
.testimonial-author .author-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--panda-black);
}
.testimonial-author .author-role {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ===== News ===== */
.news-section {
  padding: 96px 0;
  background: var(--bg-warm);
}
.news-list {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.news-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s ease;
}
.news-card:hover {
  border-color: var(--bamboo-light);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.news-card a {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
}
.news-card-img {
  width: 160px;
  height: 110px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-gray);
}
.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-card-content {
  flex: 1;
  min-width: 0;
}
.news-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--bamboo);
  background: rgba(11, 93, 59, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 8px;
}
.news-card-content h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--panda-black);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-card-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
}
.news-card-meta .news-date {
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.news-read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bamboo);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}
.news-card a:hover .news-read-more {
  gap: 10px;
}
.news-empty {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.news-empty i {
  font-size: 2.5rem;
  color: var(--bamboo-light);
  opacity: 0.5;
}
.news-more {
  text-align: center;
  margin-top: 40px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 110px 0;
  background: linear-gradient(135deg, var(--orange), #FB9B45, #F47421);
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 760px;
}
.cta-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}
.cta-inner p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--panda-black);
  color: rgba(255, 255, 255, 0.75);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand .brand {
  justify-content: flex-start;
  padding: 0;
  margin-bottom: 16px;
}
.footer-brand .brand-text {
  color: var(--white);
}
.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 260px;
}
.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 20px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  padding: 6px 0;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-col a:hover {
  color: var(--bamboo-bright);
  padding-left: 6px;
}
.footer-col p {
  font-size: 0.8125rem;
  line-height: 2;
  color: rgba(255, 255, 255, 0.65);
}
.footer-col p i {
  width: 24px;
  color: var(--bamboo-light);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-left,
  .nav-right {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .header-inner {
    display: flex;
    justify-content: space-between;
  }
  .brand {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .pain-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .pain-image img {
    height: 320px;
  }
  .solution-card-large {
    grid-template-columns: 1fr;
  }
  .solution-card-img img {
    height: 220px;
  }
  .stats-panel {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .section-header {
    margin-bottom: 40px;
  }
  .pain-section,
  .solution-section,
  .faq-section,
  .stats-section,
  .testimonial-section,
  .news-section,
  .cta-section {
    padding: 64px 0;
  }
  .hero {
    min-height: auto;
    padding: 140px 0 80px;
  }
  .hero h1 {
    font-size: clamp(2rem, 6.5vw, 2.6rem);
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .solution-grid {
    grid-template-columns: 1fr;
  }
  .solution-card-body {
    padding: 32px 28px;
  }
  .stats-panel {
    grid-template-columns: 1fr 1fr;
    padding: 40px 24px;
    gap: 24px;
  }
  .news-card a {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }
  .news-card-img {
    width: 100%;
    height: 160px;
  }
  .news-card-content p {
    white-space: normal;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stats-panel {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0B5D3B;
  --primary-dark: #14452F;
  --primary-deeper: #0C3D2E;
  --secondary: #1C1C1A;
  --accent: #F47421;
  --accent-dark: #E05D14;
  --accent-light: #FB9B45;
  --green-light: #2FB584;
  --green-lighter: #34D399;
  --bg-warm: #FAF9F6;
  --bg-gray: #F3F2EE;
  --bg-white: #FFFFFF;
  --text-main: #22221F;
  --text-secondary: #6F6E69;
  --text-muted: #9CA3AF;
  --border-color: #E6E4DE;
  --radius-large: 24px;
  --radius-medium: 16px;
  --radius-small: 12px;
  --shadow-normal: 0 12px 40px rgba(15, 49, 35, 0.07);
  --shadow-hover: 0 20px 55px rgba(15, 49, 35, 0.14);
  --shadow-btn: 0 8px 20px rgba(244, 116, 33, 0.3);
  --transition: 0.2s ease;
  --container-width: 1240px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  object-fit: cover;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Header & Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 84px;
  background: rgba(250, 249, 246, 0.97);
  border-bottom: 1px solid transparent;
  transition: height var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.site-header.scrolled {
  height: 64px;
  box-shadow: 0 4px 24px rgba(15, 49, 35, 0.06);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-self: end;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 999px;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: rgba(11, 93, 59, 0.06);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-self: center;
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.brand-badge {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(11, 93, 59, 0.1);
  border-radius: 999px;
  padding: 1px 10px;
  display: inline-block;
  width: fit-content;
  letter-spacing: 0.08em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 12px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 1999;
  background: var(--bg-warm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  padding: 12px 24px;
  border-radius: 16px;
}

.mobile-menu a.active {
  color: var(--primary);
  background: rgba(11, 93, 59, 0.08);
}

.mobile-menu a:hover {
  color: var(--primary);
  background: rgba(11, 93, 59, 0.05);
}

.menu-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.5rem;
  color: var(--text-main);
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
}

.menu-close:hover {
  background: rgba(11, 93, 59, 0.1);
  transform: rotate(90deg);
}

/* ===== Category Hero ===== */
.category-hero {
  padding: 160px 0 72px;
  background: linear-gradient(135deg, var(--primary-deeper), var(--primary-dark) 45%, var(--primary) 85%);
  position: relative;
  overflow: hidden;
}

.category-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(circle at 15% 85%, rgba(47, 181, 132, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(244, 116, 33, 0.12) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 55% 45%;
  gap: 56px;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--green-lighter);
  background: rgba(47, 181, 132, 0.15);
  border: 1px solid rgba(47, 181, 132, 0.3);
  border-radius: 999px;
  padding: 6px 18px;
  margin-bottom: 24px;
}

.category-hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.75rem);
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero-desc {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  max-width: 90%;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-badges span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
}

.hero-badges i {
  color: var(--green-lighter);
}

.hero-image {
  position: relative;
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
  border: 3px solid rgba(255, 255, 255, 0.15);
}

.hero-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hero-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(12, 61, 46, 0.3));
  pointer-events: none;
}

/* ===== Info Sections ===== */
.info-section {
  padding: 96px 0;
}

.info-section.alt {
  background: var(--bg-white);
}

.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.split-layout.reverse .split-image {
  order: 2;
}

.split-layout.reverse .split-content {
  order: 1;
}

.split-image {
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-normal);
  position: relative;
}

.split-image::before {
  content: "";
  position: absolute;
  top: -8px;
  left: -8px;
  right: -8px;
  bottom: -8px;
  border: 2px solid rgba(11, 93, 59, 0.15);
  border-radius: calc(var(--radius-large) + 8px);
  pointer-events: none;
  z-index: 0;
}

.split-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  position: relative;
  z-index: 1;
  border-radius: var(--radius-large);
}

.split-content {
  padding: 8px 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(11, 93, 59, 0.08);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 16px;
}

.split-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 16px;
}

.split-content p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-main);
  font-weight: 500;
}

.feature-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-lighter);
  flex-shrink: 0;
  margin-top: 10px;
}

.number-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== Info Cards Section ===== */
.info-cards-section {
  padding: 96px 0;
  background: var(--bg-gray);
}

.info-cards-section .section-heading {
  text-align: center;
  margin-bottom: 48px;
}

.info-cards-section .section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.info-cards-section .section-heading p {
  max-width: 520px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1rem;
}

.info-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.info-card {
  background: var(--bg-warm);
  border-radius: var(--radius-large);
  padding: 40px 36px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  box-shadow: var(--shadow-normal);
  border: 1px solid var(--border-color);
  transition: box-shadow var(--transition), transform var(--transition);
}

.info-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
}

.info-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--green-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  flex-shrink: 0;
}

.info-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.info-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ===== FAQ Section ===== */
.faq-section {
  padding: 96px 0;
}

.faq-section .section-heading {
  text-align: center;
  margin-bottom: 48px;
}

.faq-section .section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.faq-section .section-heading p {
  max-width: 520px;
  margin: 0 auto;
  color: var(--text-secondary);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-medium);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.faq-item:hover {
  border-color: rgba(11, 93, 59, 0.3);
  box-shadow: var(--shadow-normal);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(11, 93, 59, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}

.faq-item.active .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}

.cta-inner p {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  border-radius: 999px;
  padding: 14px 32px;
  box-shadow: 0 8px 24px rgba(179, 74, 10, 0.2);
  transition: box-shadow var(--transition), transform var(--transition), background var(--transition);
}

.btn-white:hover {
  box-shadow: 0 12px 32px rgba(179, 74, 10, 0.3);
  transform: translateY(-2px);
  background: #fff8f2;
}

.btn-outline-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid #fff;
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  border-radius: 999px;
  padding: 12px 32px;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  border-color: #fff;
}

/* ===== Section title common ===== */
.section-heading {
  margin-bottom: 48px;
}

.section-heading .sub-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 8px;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 12px;
}

.section-heading p {
  color: var(--text-secondary);
  max-width: 560px;
}

.section-heading.center {
  text-align: center;
}

.section-heading.center p {
  margin-left: auto;
  margin-right: auto;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--secondary);
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 0;
  font-size: 0.875rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

.site-footer a:hover {
  color: var(--green-lighter);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .brand {
  justify-content: flex-start;
  margin-bottom: 12px;
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-brand p {
  line-height: 1.7;
  max-width: 280px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  padding: 6px 0;
}

.footer-col p {
  padding: 4px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-col p i {
  width: 18px;
  text-align: center;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
  flex-wrap: wrap;
}

/* ===== Scroll indicator ===== */
.scroll-down {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  margin-top: 48px;
  transition: color var(--transition);
}

.scroll-down:hover {
  color: #fff;
}

.scroll-down .mouse {
  width: 22px;
  height: 36px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  position: relative;
}

.scroll-down .mouse::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.7);
  animation: scrollDot 1.6s ease-in-out infinite;
}

@keyframes scrollDot {
  0% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, 12px); }
}

/* ===== Decorative dividers ===== */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  max-width: 1240px;
  margin: 0 auto;
}

/* ===== Focus visibility ===== */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(47, 181, 132, 0.4);
  outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-inner {
    grid-template-columns: 1fr auto 1fr;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .nav-toggle {
    display: flex;
    justify-self: start;
  }

  .brand {
    justify-self: center;
  }

  .category-hero {
    padding: 140px 0 56px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-desc {
    max-width: 100%;
  }

  .hero-image img {
    height: 320px;
  }

  .split-layout,
  .split-layout.reverse {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split-layout.reverse .split-image {
    order: 0;
  }

  .split-layout.reverse .split-content {
    order: 0;
  }

  .split-image img {
    height: 300px;
  }

  .info-cards-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .category-hero h1 {
    font-size: 2.2rem;
  }

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

  .info-section {
    padding: 72px 0;
  }

  .info-cards-section,
  .faq-section,
  .cta-section {
    padding: 72px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .category-hero {
    padding: 120px 0 48px;
  }

  .category-hero h1 {
    font-size: 1.875rem;
  }

  .hero-tag {
    font-size: 0.75rem;
    padding: 5px 14px;
  }

  .hero-badges {
    gap: 8px;
  }

  .hero-badges span {
    font-size: 0.8125rem;
    padding: 6px 12px;
  }

  .split-image img {
    height: 240px;
  }

  .info-card {
    flex-direction: column;
    padding: 28px 24px;
  }

  .info-card-icon {
    width: 48px;
    height: 48px;
    font-size: 1.125rem;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 0.9375rem;
  }

  .faq-answer-inner {
    padding: 0 18px 16px;
  }

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

  .btn-white,
  .btn-outline-white {
    width: 100%;
    justify-content: center;
  }

  .brand-text {
    font-size: 1.125rem;
  }

  .brand-icon svg {
    width: 32px;
    height: 32px;
  }

  .site-header {
    height: 68px;
  }

  .site-header.scrolled {
    height: 58px;
  }
}

/* roulang page: article */
:root {
  --green-primary: #0B5D3B;
  --green-dark: #14452F;
  --green-darker: #0C3D2E;
  --green-bright: #2FB584;
  --green-light: #34D399;
  --orange: #F47421;
  --orange-dark: #E05D14;
  --orange-light: #FB9B45;
  --ink: #1C1C1A;
  --bg-warm: #FAF9F6;
  --bg-gray: #F3F2EE;
  --text-main: #22221F;
  --text-secondary: #6F6E69;
  --text-muted: #9CA3AF;
  --border: #E6E4DE;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-btn: 999px;
  --shadow-normal: 0 12px 40px rgba(15, 49, 35, 0.07);
  --shadow-hover: 0 20px 55px rgba(15, 49, 35, 0.14);
  --transition: 0.2s ease;
  --font-main: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

img {
  max-width: 100%;
  display: block;
  object-fit: cover;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ========== Header / Navigation ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 84px;
  background: var(--bg-warm);
  border-bottom: 1px solid transparent;
  transition: height 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled {
  height: 64px;
  border-bottom-color: var(--border);
  box-shadow: 0 4px 24px rgba(28, 28, 26, 0.06);
}

.header-inner {
  height: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

/* Brand / Logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  transition: opacity 0.2s ease;
}

.brand:hover {
  opacity: 0.88;
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-warm);
  border-radius: 12px;
  padding: 2px;
}

.brand-name {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.brand-text {
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ink);
  line-height: 1.2;
}

.brand-text::first-letter {
  color: var(--green-primary);
}

.brand-badge {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--green-primary), var(--green-bright));
  color: #fff;
  line-height: 1.45;
}

/* Nav groups */
.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-left {
  margin-right: auto;
}

.nav-right {
  margin-left: auto;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 8px 2px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--green-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}

.nav-link:hover {
  color: var(--green-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--green-primary);
  font-weight: 700;
}

/* Hamburger */
.nav-toggle {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  background: rgba(11, 93, 59, 0.06);
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(11, 93, 59, 0.12);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--green-primary);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header-actions {
  display: none;
  align-items: center;
  gap: 12px;
}

.header-action-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(11, 93, 59, 0.06);
  color: var(--green-primary);
  font-size: 1rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.header-action-icon:hover {
  background: var(--green-primary);
  color: #fff;
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--ink);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 24px 24px 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
}

.mobile-menu-header .brand {
  position: static;
  transform: none;
}

.mobile-menu-header .brand-text {
  color: #fff;
}

.mobile-menu-header .brand-icon {
  background: #fff;
}

.mobile-close {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff;
  font-size: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.mobile-close:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.3);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 600;
  padding: 14px 16px;
  border-radius: 16px;
  color: rgba(255,255,255,0.86);
  transition: background 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}

.mobile-nav a:hover,
.mobile-nav a.active {
  background: rgba(11, 93, 59, 0.55);
  color: #fff;
  padding-left: 22px;
}

.mobile-nav a i {
  width: 24px;
  text-align: center;
  color: var(--green-bright);
}

.mobile-menu-contact {
  margin-top: auto;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.7);
}

.mobile-menu-contact i {
  width: 22px;
  color: var(--green-bright);
}

body.menu-open {
  overflow: hidden;
}

/* ========== Breadcrumb ========== */
.breadcrumb-wrap {
  padding-top: 100px;
  padding-bottom: 20px;
  background: var(--bg-warm);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.breadcrumb a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.breadcrumb-sep {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.breadcrumb-current {
  color: var(--text-muted);
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========== Article Hero ========== */
.article-hero {
  background: linear-gradient(180deg, #F0F5F2 0%, var(--bg-warm) 100%);
  padding: 48px 0 40px;
  text-align: center;
}

.article-hero-inner {
  max-width: 980px;
}

.article-hero-tag {
  display: inline-block;
  background: rgba(11, 93, 59, 0.1);
  color: var(--green-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}

.article-title {
  font-size: clamp(2.1rem, 4.2vw, 3.3rem);
  font-weight: 800;
  line-height: 1.18;
  color: var(--text-main);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

.article-meta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.article-meta-row .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta-row .meta-item i {
  color: var(--green-bright);
}

/* ========== Article Content ========== */
.article-body-section {
  padding: 32px 0 56px;
}

.article-content-wrap {
  max-width: 820px;
}

.article-content {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--text-main);
}

.article-content p {
  margin-bottom: 1.75rem;
}

.article-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-top: 2.75rem;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-main);
  margin-top: 2.25rem;
  margin-bottom: 0.875rem;
}

.article-content h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.article-content a {
  color: var(--green-primary);
  border-bottom: 1px solid rgba(11, 93, 59, 0.3);
  padding-bottom: 1px;
}

.article-content a:hover {
  color: var(--green-bright);
  border-bottom-color: var(--green-bright);
}

.article-content blockquote {
  margin: 2rem 0;
  padding: 20px 24px;
  border-left: 4px solid var(--green-primary);
  background: var(--bg-gray);
  border-radius: 0 16px 16px 0;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.75rem 1.5rem;
  line-height: 1.75;
}

.article-content li {
  margin-bottom: 0.5rem;
}

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

.article-content ol li::marker {
  color: var(--green-primary);
  font-weight: 700;
}

.article-content img {
  border-radius: 16px;
  margin: 2rem auto;
  max-width: 100%;
  box-shadow: var(--shadow-normal);
}

.article-content figure {
  margin: 2rem 0;
}

.article-content figure img {
  margin: 0 auto;
}

.article-content figcaption {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 10px;
}

.article-content table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
  border-radius: 12px;
  overflow: hidden;
  font-size: 0.9375rem;
}

.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}

.article-content table th {
  background: rgba(11, 93, 59, 0.06);
  font-weight: 700;
  color: var(--green-primary);
}

.article-content pre {
  margin: 2rem 0;
  padding: 20px 24px;
  background: var(--ink);
  color: #fff;
  border-radius: 16px;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.65;
}

.article-content code {
  font-family: "SF Mono", Consolas, Monaco, monospace;
  font-size: 0.9em;
  background: rgba(11, 93, 59, 0.08);
  border-radius: 6px;
  padding: 2px 6px;
}

.article-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* Article not found */
.article-not-found {
  text-align: center;
  padding: 80px 20px;
  background: #fff;
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-normal);
}

.article-not-found .not-found-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-gray);
  color: var(--green-primary);
  font-size: 2rem;
  border-radius: 50%;
}

.article-not-found h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.article-not-found p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 13px 28px;
  border-radius: 999px;
  min-height: 48px;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn i {
  font-size: 0.875rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  color: #fff;
  box-shadow: 0 8px 20px rgba(244, 116, 33, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--orange-dark), var(--orange));
  box-shadow: 0 12px 28px rgba(244, 116, 33, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline-green {
  border-color: var(--green-primary);
  color: var(--green-primary);
  background: #fff;
}

.btn-outline-green:hover {
  background: rgba(11, 93, 59, 0.08);
  border-color: var(--green-dark);
  color: var(--green-dark);
}

.btn-white {
  background: #fff;
  color: var(--orange-dark);
  box-shadow: 0 8px 24px rgba(224, 93, 20, 0.28);
}

.btn-white:hover {
  background: #FFF7F0;
  color: var(--orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(224, 93, 20, 0.36);
}

.btn-outline-white {
  border-color: rgba(255,255,255,0.75);
  color: #fff;
  background: transparent;
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.14);
  border-color: #fff;
  color: #fff;
}

/* ========== Article Bottom ========== */
.article-bottom-section {
  padding: 24px 0 56px;
}

.article-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.pagination-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.pagination-link:hover {
  border-color: var(--green-bright);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.pagination-link.next {
  text-align: right;
  align-items: flex-end;
}

.pagination-direction {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pagination-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}

.pagination-link:hover .pagination-title {
  color: var(--green-primary);
}

.article-back-wrap {
  text-align: center;
  margin-top: 40px;
}

/* ========== Related Section ========== */
.related-section {
  padding: 64px 0 72px;
  background: var(--bg-gray);
}

.related-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
}

.related-title {
  font-size: clamp(1.5rem, 2.8vw, 2.25rem);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.related-subtitle {
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  display: block;
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.related-card:hover {
  border-color: var(--green-bright);
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
  color: inherit;
}

.related-cover {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-gray);
  position: relative;
}

.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.related-card:hover .related-cover img {
  transform: scale(1.06);
}

.related-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(28, 28, 26, 0.18));
}

.related-body {
  display: block;
  padding: 20px 22px 22px;
}

.related-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(11, 93, 59, 0.09);
  color: var(--green-primary);
  margin-bottom: 12px;
}

.related-body h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card:hover .related-body h3 {
  color: var(--green-primary);
}

.related-date {
  font-size: 0.8125rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.related-date i {
  color: var(--green-bright);
}

/* ========== Article CTA ========== */
.article-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, #14452F 0%, #0B5D3B 55%, #1C1C1A 100%);
  position: relative;
  overflow: hidden;
}

.article-cta::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  top: -120px;
  background: radial-gradient(circle, rgba(47, 181, 132, 0.28) 0%, transparent 70%);
  border-radius: 50%;
}

.article-cta::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  left: -80px;
  bottom: -140px;
  background: radial-gradient(circle, rgba(244, 116, 33, 0.22) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-content h2 {
  color: #fff;
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.cta-content p {
  color: rgba(255,255,255,0.78);
  font-size: 1rem;
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.76);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .brand {
  position: static;
  transform: none;
  margin-bottom: 16px;
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-brand .brand-badge {
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  color: #fff;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
  margin-top: 16px;
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.68);
  padding: 6px 0;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--green-bright);
}

.footer-col p {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  margin-bottom: 10px;
  color: rgba(255,255,255,0.68);
}

.footer-col p i {
  width: 18px;
  text-align: center;
  color: var(--green-bright);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.45);
}

/* ========== Media Queries ========== */
@media (max-width: 1024px) {
  .header-inner {
    justify-content: center;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
  }

  .header-actions {
    display: flex;
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
  }

  .brand {
    position: static;
    transform: none;
  }

  .breadcrumb-wrap {
    padding-top: 96px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .breadcrumb-wrap {
    padding-top: 88px;
    padding-bottom: 16px;
  }

  .article-hero {
    padding: 36px 0 28px;
  }

  .article-title {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
  }

  .article-meta-row {
    gap: 16px;
  }

  .article-body-section {
    padding: 24px 0 40px;
  }

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

  .related-card {
    max-width: 420px;
    margin: 0 auto;
    width: 100%;
  }

  .article-pagination {
    grid-template-columns: 1fr;
  }

  .pagination-link.next {
    text-align: left;
    align-items: flex-start;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .article-content-wrap {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 520px) {
  .article-meta-row {
    flex-direction: column;
    gap: 8px;
  }

  .related-title {
    font-size: 1.4rem;
  }

  .breadcrumb {
    gap: 8px;
    font-size: 0.8125rem;
  }

  .breadcrumb-sep {
    font-size: 0.6875rem;
  }

  .pagination-link {
    padding: 18px 20px;
  }

  .article-content blockquote {
    padding: 16px 18px;
  }

  .btn {
    padding: 12px 24px;
    min-height: 44px;
    font-size: 0.875rem;
  }
}

@media (max-width: 380px) {
  .brand-text {
    font-size: 1.125rem;
  }

  .brand-badge {
    font-size: 0.5625rem;
    padding: 1px 6px;
  }

  .brand-icon svg {
    width: 30px;
    height: 30px;
  }
}