/* roulang page: index */
:root {
  --primary: #0E3B2E;
  --primary-dark: #0A2D23;
  --accent: #D2FF3E;
  --accent-hover: #BEEE30;
  --bg-warm: #F4F1EA;
  --card-bg: #FFFFFF;
  --card-border: #E8E4DA;
  --text-main: #1A2620;
  --text-secondary: #5A6B61;
  --text-muted: #8C9B92;
  --success: #1B7F4C;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 30px rgba(14,59,46,0.08);
  --shadow-hover: 0 14px 40px rgba(14,59,46,0.14);
  --trans: 0.25s ease;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans", "MiSans", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-main);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
}

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

/* === NAVIGATION === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--primary);
  height: 72px;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(14, 59, 46, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.brand-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  transition: background var(--trans);
}

.brand-logo:hover {
  background: rgba(255,255,255,0.1);
}

.brand-name {
  font-size: 22px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.5px;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.brand-tag {
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.5px;
}

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

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  position: relative;
  padding: 6px 2px;
  letter-spacing: 0.3px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--trans);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--accent);
}

.btn-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 24px;
  background: var(--accent);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--trans), box-shadow var(--trans), transform var(--trans);
  margin-left: 8px;
}

.btn-login:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(210,255,62,0.25);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-login:active {
  transform: translateY(1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.1);
  padding: 8px;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 34, 25, 0.98);
  z-index: 1050;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 40px 24px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: #fff;
  font-size: 22px;
  font-weight: 500;
  padding: 14px 30px;
  text-align: center;
  width: 100%;
  max-width: 300px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mobile-menu a.active {
  color: var(--accent);
}

.mobile-menu .btn-login {
  margin-top: 20px;
  width: 200px;
  justify-content: center;
}

/* === HERO === */
.hero {
  position: relative;
  background: var(--bg-warm);
  padding: 96px 0 88px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(rgba(14,59,46,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,59,46,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: 40px;
  right: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(210,255,62,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-text {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 28px;
  box-shadow: 0 2px 10px rgba(14,59,46,0.05);
}

.hero-badge i {
  color: var(--success);
}

.hero-title {
  font-size: 48px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--accent);
  opacity: 0.35;
  border-radius: 3px;
  z-index: -1;
}

.hero-sub {
  font-size: 16px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.hero-value {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 32px;
  background: var(--accent);
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--trans), box-shadow var(--trans), transform var(--trans);
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(210,255,62,0.3);
  transform: translateY(-2px);
  color: var(--primary);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 32px;
  background: transparent;
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  border: 2px solid var(--primary);
  border-radius: var(--radius-sm);
  transition: background var(--trans), color var(--trans);
}

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

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--primary);
}

.text-link i {
  transition: transform var(--trans);
}

.text-link:hover i {
  transform: translateX(4px);
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.hero-visual-main {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(14,59,46,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  background: #fff;
}

.hero-visual-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 360px;
}

.hero-visual-float {
  position: absolute;
  bottom: -20px;
  right: -16px;
  background: #fff;
  border-radius: 14px;
  padding: 16px 20px;
  box-shadow: 0 12px 40px rgba(14,59,46,0.15);
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--card-border);
  transition: transform 0.3s ease;
}

.hero-visual-float .float-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(210,255,62,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.hero-visual-float .float-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.hero-visual-float .float-sub {
  font-size: 12px;
  color: var(--text-muted);
}

/* === TRUST BAR === */
.trust-bar {
  background: var(--primary);
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}

.trust-bar::before {
  content: '';
  position: absolute;
  top: -60px;
  right: 10%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(210,255,62,0.08) 0%, transparent 70%);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-item {
  padding: 16px 24px;
  border-left: 1px solid rgba(255,255,255,0.12);
  transition: background var(--trans);
}

.trust-item:hover {
  background: rgba(255,255,255,0.04);
}

.trust-num {
  font-family: "DIN Alternate", "Barlow", "Inter", sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 4px;
}

.trust-label {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.5px;
}

/* === FEATURES === */
.features {
  padding: 105px 0 40px;
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.section-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 48px;
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 80px;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.feature-media {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(14,59,46,0.12);
  background: #fff;
  border: 1px solid var(--card-border);
  transition: transform var(--trans), box-shadow var(--trans);
}

.feature-media:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 60px rgba(14,59,46,0.16);
}

.feature-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.feature-content {
  padding: 16px 0;
}

.feature-content h3 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.4;
}

.feature-content p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 20px;
}

.feature-points {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}

.feature-points li {
  font-size: 15px;
  color: var(--text-main);
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-points li i {
  color: var(--success);
  font-size: 16px;
  flex-shrink: 0;
}

.feature-cards-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 64px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--primary);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(14,59,46,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  margin-bottom: 16px;
}

.feature-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* === HOT SCROLL === */
.hot-section {
  padding: 80px 0 40px;
  background: #fff;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

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

.hot-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 20px;
  scroll-snap-type: x mandatory;
}

.hot-scroll::-webkit-scrollbar {
  height: 6px;
}

.hot-scroll::-webkit-scrollbar-track {
  background: var(--bg-warm);
  border-radius: 3px;
}

.hot-scroll::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: 3px;
}

.hot-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.hot-card {
  flex: 0 0 300px;
  scroll-snap-align: start;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans);
  border-top: 2px solid var(--accent);
}

.hot-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.hot-card-img {
  position: relative;
  overflow: hidden;
}

.hot-card-img img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hot-card:hover .hot-card-img img {
  transform: scale(1.03);
}

.hot-card-body {
  padding: 20px;
}

.hot-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--bg-warm);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 12px;
}

.hot-card-body h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hot-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 14px;
}

.hot-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.hot-actions .btn-ghost {
  flex: 1;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-warm);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all var(--trans);
}

.hot-actions .btn-ghost:hover {
  background: var(--card-border);
  color: var(--text-main);
}

.hot-actions .btn-join {
  height: 34px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--primary);
  transition: all var(--trans);
}

.hot-actions .btn-join:hover {
  background: var(--primary);
  color: #fff;
}

/* === REVIEWS === */
.reviews {
  padding: 96px 0;
  background: var(--bg-warm);
}

.reviews-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.review-slide {
  display: none;
  animation: fadeSlide 0.4s ease;
}

.review-slide.active {
  display: block;
}

@keyframes fadeSlide {
  0% {
    opacity: 0;
    transform: translateX(12px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.review-quote {
  font-size: 26px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-main);
  margin: 28px auto;
  max-width: 680px;
}

.review-author {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}

.review-role {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.review-stars {
  color: #F5A623;
  font-size: 18px;
  letter-spacing: 4px;
}

.review-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
}

.review-arrow {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  cursor: pointer;
  transition: all var(--trans);
}

.review-arrow:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.review-dots {
  display: flex;
  gap: 8px;
  align-items: center;
}

.review-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #C9D1CA;
  cursor: pointer;
  transition: background var(--trans), transform var(--trans);
}

.review-dot.active {
  background: var(--primary);
  transform: scale(1.3);
}

.review-section-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin: 0 auto 8px;
}

/* === SERVICES === */
.services {
  padding: 80px 0;
  background: #fff;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.services-list h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.services-list h3 i {
  color: var(--primary);
  font-size: 18px;
}

.service-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid #F0EDE5;
  transition: padding-left var(--trans);
}

.service-item:hover {
  padding-left: 8px;
}

.service-item .s-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(14,59,46,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
  flex-shrink: 0;
}

.service-item .s-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.service-item .s-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* === NEWS === */
.news-section {
  padding: 96px 0;
  background: var(--bg-warm);
}

.news-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  margin-top: 48px;
}

.news-feature {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans);
  display: flex;
  flex-direction: column;
}

.news-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.news-feature img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.news-feature-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-feature-tag {
  align-self: flex-start;
  background: var(--accent);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.news-feature-body h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 10px;
}

.news-feature-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-feature-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.news-list-wrap {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-list-item {
  padding: 18px 0;
  border-bottom: 1px solid #E5E0D6;
  transition: padding-left var(--trans);
}

.news-list-item:hover {
  padding-left: 8px;
}

.news-list-item:last-child {
  border-bottom: none;
}

.news-list-item h4 {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 6px;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-list-item:hover h4 {
  color: var(--primary);
}

.news-list-item .meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
  align-items: center;
}

.news-list-item .meta .tag {
  background: var(--bg-warm);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  color: var(--primary);
}

.view-all {
  margin-top: 28px;
  text-align: right;
}

/* === CTA BAR === */
.cta-bar {
  background: var(--primary);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.cta-bar::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(210,255,62,0.15) 0%, transparent 70%);
}

.cta-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}

.cta-title {
  font-size: 28px;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 8px;
}

.cta-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cta-actions .btn-primary {
  font-size: 15px;
  height: 46px;
  padding: 0 36px;
}

.cta-text-link {
  color: rgba(255,255,255,0.8);
  font-size: 14px;
  font-weight: 500;
}

.cta-text-link:hover {
  color: var(--accent);
}

/* === FAQ === */
.faq-section {
  padding: 80px 0;
  background: var(--bg-warm);
}

.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
  margin: 40px auto 0;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--trans), box-shadow var(--trans);
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(14,59,46,0.06);
}

.faq-item.open {
  border-color: var(--primary);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  text-align: left;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--trans);
}

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

.faq-question::before {
  content: '';
  width: 3px;
  height: 16px;
  background: transparent;
  border-radius: 2px;
  flex-shrink: 0;
  transition: background var(--trans);
}

.faq-item.open .faq-question::before {
  background: var(--accent);
}

.faq-icon {
  font-size: 18px;
  color: var(--text-muted);
  transition: transform var(--trans), color var(--trans);
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 240px;
}

.faq-answer p {
  padding: 0 24px 20px 48px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* === FOOTER === */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 64px 0 0;
}

.footer-top {
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 0.8fr;
  gap: 40px;
}

.footer-brand-block {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-site-name {
  font-size: 24px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.5px;
}

.footer-brand-line {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 280px;
}

.footer-links-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  transition: color var(--trans), padding-left var(--trans);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-mid {
  padding: 24px 0;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-mid p {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  margin: 0;
}

.footer-bottom {
  padding: 28px 0 32px;
}

.footer-security {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.security-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}

.security-item i {
  font-size: 15px;
  color: var(--accent);
  opacity: 0.8;
}

/* === REVEAL === */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* === RESPONSIVE === */
@media (max-width: 1200px) {
  .container {
    padding: 0 32px;
  }
}

@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-text {
    max-width: 100%;
  }
  .hero-visual {
    min-height: 320px;
  }
  .trust-grid {
    grid-template-columns: 2fr 2fr;
  }
  .feature-block {
    grid-template-columns: 1fr;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .news-wrap {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 64px;
  }
  .header-inner {
    height: 64px;
    padding: 0 16px;
  }
  .brand-logo {
    position: static;
    transform: none;
  }
  .brand-name {
    font-size: 18px;
  }
  .brand-tag {
    display: none;
  }
  .nav-left, .nav-right {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .hero {
    padding: 56px 0 64px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-sub {
    font-size: 14px;
  }
  .hero-value {
    font-size: 15px;
  }
  .hero-visual {
    min-height: 240px;
  }
  .hero-visual-main img {
    min-height: 220px;
  }
  .hero-visual-float {
    bottom: -10px;
    right: 8px;
    padding: 12px 16px;
  }
  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }
  .trust-item {
    padding: 12px;
  }
  .trust-num {
    font-size: 26px;
  }
  .features {
    padding: 64px 0 24px;
  }
  .feature-block {
    gap: 32px;
    margin-bottom: 48px;
  }
  .feature-cards-row {
    grid-template-columns: 1fr;
  }
  .hot-section {
    padding: 56px 0 32px;
  }
  .reviews {
    padding: 64px 0;
  }
  .review-quote {
    font-size: 20px;
  }
  .services {
    padding: 56px 0;
  }
  .news-section {
    padding: 64px 0;
  }
  .cta-bar {
    padding: 48px 0;
  }
  .cta-title {
    font-size: 24px;
  }
  .container {
    padding: 0 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    padding: 20px 0 24px;
  }
  .footer-security {
    gap: 20px;
  }
  .faq-answer p {
    padding: 0 16px 16px 48px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .btn-primary, .btn-outline {
    width: 100%;
  }
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-cta .text-link {
    justify-content: center;
  }
  .feature-card {
    padding: 20px;
  }
  .hot-card {
    flex: 0 0 260px;
  }
  .news-wrap {
    gap: 24px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-actions .btn-primary {
    width: 100%;
  }
  .faq-question {
    padding: 16px;
    font-size: 15px;
  }
}

/* roulang page: category1 */
:root {
    --primary: #0E3B2E;
    --accent: #D2FF3E;
    --accent-hover: #BEEE30;
    --bg-warm: #F4F1EA;
    --bg-card: #FFFFFF;
    --border-card: #E8E4DA;
    --text-main: #1A2620;
    --text-sub: #5A6B61;
    --text-weak: #8C9B92;
    --success: #1B7F4C;
    --error: #C4472F;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-card: 0 8px 30px rgba(14, 59, 46, 0.08);
    --transition-base: 0.25s ease;
    --font-sans: "PingFang SC", "HarmonyOS Sans", "MiSans", "Helvetica Neue", "Microsoft YaHei", sans-serif;
    --font-num: "DIN Alternate", "Barlow", "Inter", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-main);
    background-color: var(--bg-warm);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.no-scroll {
    overflow: hidden;
}

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

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

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

ul, ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ===== Header Navigation ===== */
.site-header {
    background-color: var(--primary);
    position: relative;
    z-index: 1000;
    height: 72px;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background-color: rgba(14, 59, 46, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.header-inner {
    max-width: 1320px;
    margin: 0 auto;
    height: 72px;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 28px;
    z-index: 2;
}

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

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

.nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.03em;
    padding: 6px 0;
    position: relative;
    transition: color var(--transition-base);
    line-height: 1.4;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width var(--transition-base);
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

.nav-link.active::after {
    width: 100%;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    padding: 8px 16px;
    border-radius: 8px;
    transition: background var(--transition-base);
}

.brand-logo:hover {
    background: rgba(255, 255, 255, 0.06);
}

.brand-name {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.brand-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent);
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.brand-tag {
    font-size: 13px;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.05em;
    background: rgba(210, 255, 62, 0.12);
    padding: 4px 10px;
    border-radius: 999px;
    line-height: 1;
    white-space: nowrap;
}

.btn-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent);
    color: var(--primary) !important;
    font-size: 14px;
    font-weight: 600;
    padding: 8px 22px;
    border-radius: 8px;
    transition: all var(--transition-base);
    line-height: 1.5;
    white-space: nowrap;
    border: 1px solid transparent;
}

.btn-login:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 4px 16px rgba(210, 255, 62, 0.3);
    transform: translateY(-1px);
    color: var(--primary) !important;
}

.btn-login:active {
    transform: translateY(1px);
    box-shadow: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    padding: 8px;
    cursor: pointer;
    z-index: 1100;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .site-header, .header-inner {
        height: 64px;
    }

    .header-inner {
        padding: 0 20px;
    }

    .hamburger {
        display: flex;
        position: absolute;
        left: 20px;
        top: 50%;
        transform: translateY(-50%);
        z-index: 1200;
    }

    .hamburger.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .hamburger.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .brand-logo {
        position: static;
        transform: none;
        margin: 0 auto;
        padding: 4px 8px;
    }

    .brand-name {
        font-size: 20px;
    }

    .brand-tag {
        display: none;
    }

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

    .mobile-menu {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--primary);
        z-index: 1050;
        padding: 100px 40px 40px;
        flex-direction: column;
        gap: 0;
        overflow-y: auto;
    }

    .mobile-menu .mobile-nav-links {
        display: flex;
        flex-direction: column;
        gap: 4px;
    }

    .mobile-menu .nav-link {
        font-size: 18px;
        padding: 14px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        display: flex;
        align-items: center;
        justify-content: space-between;
        color: rgba(255, 255, 255, 0.9);
    }

    .mobile-menu .nav-link.active {
        color: var(--accent);
    }

    .mobile-menu .nav-link i {
        font-size: 14px;
        opacity: 0.6;
    }

    .mobile-menu .btn-login {
        margin-top: 32px;
        width: 100%;
        justify-content: center;
        height: 48px;
        font-size: 16px;
    }
}

@media (min-width: 769px) {
    .mobile-menu {
        display: none !important;
    }
}

/* ===== Category Page Hero ===== */
.category-hero {
    background: linear-gradient(135deg, rgba(14, 59, 46, 0.03) 25%, transparent 25%) -12px 0/24px 24px,
                linear-gradient(225deg, rgba(14, 59, 46, 0.03) 25%, transparent 25%) -12px 0/24px 24px,
                linear-gradient(315deg, rgba(14, 59, 46, 0.03) 25%, transparent 25%) 0 0/24px 24px,
                linear-gradient(45deg, rgba(14, 59, 46, 0.03) 25%, transparent 25%) 0 0/24px 24px;
    background-color: var(--bg-warm);
    padding: 72px 0 56px;
    border-bottom: 1px solid var(--border-card);
}

.category-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}

.category-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-weak);
    margin-bottom: 28px;
    flex-wrap: wrap;
}

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

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

.category-breadcrumb .divider {
    color: var(--border-card);
    font-size: 12px;
}

.category-breadcrumb .current {
    color: var(--text-main);
    font-weight: 500;
}

.category-hero h1 {
    font-size: 38px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.category-hero h1 .accent-text {
    color: var(--primary);
    background: linear-gradient(transparent 70%, rgba(210, 255, 62, 0.6) 70%);
    padding: 0 2px;
}

.category-hero-desc {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-sub);
    max-width: 800px;
    margin-bottom: 32px;
}

.category-hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent);
    color: var(--primary) !important;
    font-size: 16px;
    font-weight: 600;
    padding: 12px 32px;
    border-radius: 8px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    line-height: 1.5;
    min-height: 44px;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 4px 16px rgba(210, 255, 62, 0.3);
    transform: translateY(-2px);
    color: var(--primary) !important;
}

.btn-primary:active {
    transform: translateY(1px);
    box-shadow: none;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--primary) !important;
    font-size: 15px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 8px;
    border: 2px solid var(--primary);
    transition: all var(--transition-base);
    cursor: pointer;
    min-height: 44px;
    line-height: 1.5;
}

.btn-ghost:hover {
    background-color: var(--primary);
    color: #ffffff !important;
}

.btn-ghost:active {
    transform: translateY(1px);
}

/* ===== Section Common ===== */
.category-section {
    padding: 80px 0;
    background-color: var(--bg-warm);
}

.category-section .container {
    max-width: 1200px;
}

.section-header {
    margin-bottom: 48px;
}

.section-header .section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(210, 255, 62, 0.35);
    padding: 6px 14px;
    border-radius: 999px;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-main);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.section-header .section-desc {
    font-size: 16px;
    color: var(--text-sub);
    max-width: 700px;
    line-height: 1.8;
}

/* ===== Feature Grid ===== */
.feature-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.feature-media {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(14, 59, 46, 0.08);
}

.feature-media img {
    width: 100%;
    height: auto;
    min-height: 280px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-card);
}

.feature-media::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(to top, rgba(14, 59, 46, 0.35), transparent);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    pointer-events: none;
}

.feature-media .media-float-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    z-index: 2;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.feature-media .media-float-badge .badge-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 14px;
}

.feature-media .media-float-badge .badge-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.3;
}

.feature-content .feature-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 16px;
    line-height: 1.4;
}

.feature-content .feature-desc {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-sub);
    margin-bottom: 20px;
}

.feature-list {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text-main);
    line-height: 1.6;
}

.feature-list li i {
    color: var(--success);
    font-size: 14px;
    margin-top: 4px;
    flex-shrink: 0;
}

/* Reverse layout */
.feature-layout.reverse .feature-media {
    order: 2;
}

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

/* ===== Steps / Process ===== */
.steps-wrapper {
    background-color: var(--primary);
    border-radius: 24px;
    padding: 64px 56px;
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.steps-wrapper::before {
    content: '';
    position: absolute;
    right: -80px;
    top: -80px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(210, 255, 62, 0.12);
    pointer-events: none;
}

.steps-wrapper::after {
    content: '';
    position: absolute;
    right: 20px;
    bottom: -120px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(210, 255, 62, 0.05);
    pointer-events: none;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 2;
}

.step-item {
    position: relative;
    padding-top: 8px;
}

.step-number {
    font-family: var(--font-num);
    font-size: 44px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 16px;
    display: block;
}

.step-item h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #ffffff;
    line-height: 1.4;
}

.step-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

/* ===== Scenario Cards ===== */
.scenario-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.scenario-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.scenario-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.scenario-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(14, 59, 46, 0.08);
    transform: translateY(-3px);
}

.scenario-card:hover::before {
    opacity: 1;
}

.scenario-card .scenario-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(210, 255, 62, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 20px;
    margin-bottom: 20px;
}

.scenario-card h3 {
    font-size: 19px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-main);
    line-height: 1.4;
}

.scenario-card p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-sub);
    margin-bottom: 16px;
}

.scenario-card .scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    background: var(--bg-warm);
    color: var(--primary);
    border: 1px solid var(--border-card);
    padding: 4px 12px;
    border-radius: 999px;
    line-height: 1.4;
}

/* ===== Feature Steps List ===== */
.steps-list-block {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.steps-list-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    transition: all var(--transition-base);
    position: relative;
}

.steps-list-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-card);
    transform: translateY(-2px);
}

.steps-list-item .step-badge {
    font-family: var(--font-num);
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    background: rgba(210, 255, 62, 0.35);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    line-height: 1;
}

.steps-list-item .step-content {
    flex: 1;
}

.steps-list-item .step-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
    line-height: 1.4;
}

.steps-list-item .step-content p {
    font-size: 15px;
    color: var(--text-sub);
    line-height: 1.8;
}

/* ===== FAQ Accordion ===== */
.faq-wrapper {
    background: var(--bg-warm);
    border: 1px solid var(--border-card);
    border-radius: 20px;
    padding: 40px;
}

.faq-item {
    border-bottom: 1px solid var(--border-card);
    padding: 20px 0;
    transition: all var(--transition-base);
}

.faq-item:first-child {
    padding-top: 0;
}

.faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.faq-item .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-main);
    padding: 8px 0;
    user-select: none;
    line-height: 1.5;
    transition: color var(--transition-base);
    position: relative;
}

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

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

.faq-item.active .faq-question::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--accent);
    border-radius: 2px;
}

.faq-item .faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-weak);
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.faq-item .faq-icon i {
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary);
}

.faq-item.active .faq-icon i {
    transform: rotate(45deg);
}

.faq-item .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding var(--transition-base);
    padding: 0;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-sub);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 16px 0 4px;
}

.faq-item .faq-answer p + p {
    margin-top: 12px;
}

/* ===== CTA Section ===== */
.cta-banner {
    background-color: var(--primary);
    padding: 72px 0;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    right: 80px;
    top: 50%;
    transform: translateY(-50%);
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(210, 255, 62, 0.15);
    pointer-events: none;
}

.cta-banner .container {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-content h2 {
    font-size: 28px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
    line-height: 1.4;
}

.cta-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 0;
}

.cta-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-actions .btn-primary {
    background-color: var(--accent);
    color: var(--primary) !important;
    font-size: 16px;
    padding: 14px 32px;
}

.cta-actions .btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(210, 255, 62, 0.3);
}

.cta-actions .cta-link {
    color: #ffffff;
    font-size: 15px;
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: rgba(255, 255, 255, 0.4);
    transition: all var(--transition-base);
}

.cta-actions .cta-link:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
}

/* ===== Footer ===== */
.site-footer {
    background-color: var(--primary);
    padding: 64px 0 0;
    color: rgba(255, 255, 255, 0.85);
}

.site-footer .container {
    max-width: 1200px;
}

.footer-top {
    padding-bottom: 48px;
}

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

.footer-brand-block {
    max-width: 320px;
}

.footer-site-name {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.02em;
    margin-bottom: 8px;
    line-height: 1.3;
}

.footer-brand-line {
    font-size: 15px;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 16px;
}

.footer-brand-desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 0;
}

.footer-links-title {
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.4;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    transition: color var(--transition-base);
    line-height: 1.6;
}

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

.footer-mid {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    text-align: center;
}

.footer-mid p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: 0;
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0 28px;
}

.footer-security {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.security-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.security-item i {
    font-size: 14px;
    color: var(--accent);
    width: 18px;
    text-align: center;
}

/* ===== Reveal Animation ===== */
.reveal {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .container, .category-hero-inner {
        padding-left: 32px;
        padding-right: 32px;
    }
}

@media (max-width: 992px) {
    .feature-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .feature-layout.reverse .feature-media {
        order: 1;
    }

    .feature-layout.reverse .feature-content {
        order: 2;
    }

    .scenario-wrapper {
        grid-template-columns: 1fr;
    }

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

    .steps-wrapper {
        padding: 48px 32px;
    }

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

    .header-inner {
        padding: 0 24px;
    }
}

@media (max-width: 768px) {
    .category-hero {
        padding: 56px 0 40px;
    }

    .category-hero h1 {
        font-size: 28px;
    }

    .category-hero-desc {
        font-size: 16px;
    }

    .category-section {
        padding: 56px 0;
    }

    .section-header h2 {
        font-size: 26px;
    }

    .section-header .section-desc {
        font-size: 15px;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .steps-wrapper {
        padding: 40px 24px;
        border-radius: 16px;
    }

    .faq-wrapper {
        padding: 24px 20px;
    }

    .steps-list-item {
        padding: 20px;
        gap: 16px;
    }

    .steps-list-item .step-badge {
        width: 44px;
        height: 44px;
        font-size: 22px;
    }

    .cta-banner {
        padding: 56px 0;
        text-align: center;
    }

    .cta-banner .container {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }

    .cta-actions {
        justify-content: center;
    }

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

    .footer-brand-block {
        max-width: 100%;
    }

    .footer-security {
        gap: 16px;
        flex-direction: column;
        align-items: flex-start;
    }

    .security-item {
        font-size: 14px;
    }

    .btn-primary, .btn-ghost {
        width: 100%;
        text-align: center;
    }

    .category-hero-actions {
        width: 100%;
    }

    .btn-primary, .btn-ghost {
        flex: 1;
        min-width: 140px;
    }
}

@media (max-width: 480px) {
    .container, .category-hero-inner {
        padding-left: 16px;
        padding-right: 16px;
    }

    .btn-primary, .btn-ghost {
        width: 100%;
        flex: none;
    }

    .category-hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary, .btn-ghost {
        width: 100%;
    }

    .scenario-card {
        padding: 24px 20px;
    }

    .steps-list-item {
        flex-direction: column;
    }

    .steps-list-item .step-badge {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

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

/* roulang page: article */
:root{
  --primary:#0E3B2E;
  --primary-dark:#0A2E23;
  --accent:#D2FF3E;
  --accent-hover:#BEEE30;
  --bg-warm:#F4F1EA;
  --bg-white:#FFFFFF;
  --text-main:#1A2620;
  --text-secondary:#5A6B61;
  --text-muted:#8C9B92;
  --border:#E8E4DA;
  --radius:16px;
  --radius-sm:8px;
  --shadow:0 8px 30px rgba(14,59,46,0.08);
  --container-w:1200px;
  --content-w:720px;
  --transition:.25s;
  --font-main:'PingFang SC','HarmonyOS Sans','MiSans','Helvetica Neue','Microsoft YaHei',sans-serif;
  --font-num:'DIN Alternate','Inter','Barlow',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg-warm);
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition),background var(--transition),border-color var(--transition),transform var(--transition),box-shadow var(--transition)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit}
.container{max-width:var(--container-w);margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 32px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:2px solid transparent;
  cursor:pointer;transition:all var(--transition);line-height:1;
  gap:8px;
}
.btn-primary{background:var(--accent);color:var(--primary)}
.btn-primary:hover{background:var(--accent-hover);box-shadow:0 4px 16px rgba(210,255,62,.3);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-outline:active{transform:translateY(1px)}
.btn-block{width:100%}

/* ===== Header / Nav ===== */
.site-header{
  background:var(--primary);
  position:sticky;top:0;z-index:1000;
  height:72px;
  transition:background .3s,backdrop-filter .3s,box-shadow .3s;
}
.site-header.scrolled{
  background:rgba(14,59,46,.92);
  backdrop-filter:blur(8px);
  box-shadow:0 4px 20px rgba(0,0,0,.12);
}
.header-inner{
  max-width:var(--container-w);
  margin:0 auto;height:72px;
  display:flex;align-items:center;justify-content:center;
  padding:0 24px;position:relative;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:32px;z-index:2;position:absolute;top:50%;transform:translateY(-50%)}
.nav-left{left:24px}
.nav-right{right:24px}
.nav-link{
  color:rgba(255,255,255,.85);
  font-size:15px;font-weight:500;
  padding:8px 0;position:relative;
  letter-spacing:.02em;
  transition:color .25s;
}
.nav-link:hover{color:var(--accent)}
.nav-link.active{color:var(--accent);font-weight:600}
.nav-link.active::after{
  content:'';position:absolute;bottom:0;left:0;
  width:100%;height:2px;background:var(--accent);
  border-radius:2px;
}
.brand-logo{
  display:flex;align-items:center;gap:8px;
  z-index:3;transition:opacity .25s;
}
.brand-logo:hover{opacity:.85}
.brand-name{font-size:20px;font-weight:600;color:#fff;letter-spacing:.02em;line-height:1.2}
.brand-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.brand-tag{
  font-size:11px;color:rgba(255,255,255,.7);
  border:1px solid rgba(255,255,255,.25);
  padding:2px 8px;border-radius:999px;
  letter-spacing:.06em;line-height:1.4;
}
.btn-login{
  display:inline-flex;align-items:center;
  background:var(--accent);color:var(--primary);
  font-size:14px;font-weight:600;
  padding:8px 20px;border-radius:var(--radius-sm);
  transition:all var(--transition);
  border:none;cursor:pointer;line-height:1;
  height:36px;
}
.btn-login:hover{background:var(--accent-hover);box-shadow:0 4px 16px rgba(210,255,62,.3);transform:translateY(-1px)}
.btn-login:active{transform:translateY(1px)}
.hamburger{
  display:none;flex-direction:column;gap:5px;
  cursor:pointer;padding:8px;z-index:4;
  background:none;border:none;
}
.hamburger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Breadcrumb ===== */
.breadcrumb{
  max-width:var(--content-w);margin:0 auto;
  padding:32px 0 8px;
  font-size:14px;color:var(--text-muted);
  overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb-sep{margin:0 10px;color:#C5C0B5}
.breadcrumb-current{color:var(--text-main);font-weight:500}

/* ===== Article Detail ===== */
.article-detail{max-width:var(--content-w);margin:0 auto;padding:40px 0 0}
.article-header{padding:32px 0 8px}
.article-title{
  font-size:38px;font-weight:600;line-height:1.3;
  color:var(--text-main);margin-bottom:24px;
  letter-spacing:-.01em;
}
.article-meta{
  display:flex;align-items:center;gap:12px;
  font-size:14px;color:var(--text-muted);
  padding-bottom:28px;border-bottom:1px solid var(--border);
  flex-wrap:wrap;
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--text-muted);display:inline-block}
.article-author{font-weight:500;color:var(--text-secondary)}
.article-category{
  display:inline-flex;align-items:center;
  background:var(--bg-warm);border:1px solid var(--border);
  padding:3px 12px;border-radius:999px;
  font-size:13px;color:var(--primary);font-weight:500;
}
.article-summary{
  background:var(--bg-warm);
  border-left:4px solid var(--primary);
  padding:24px 28px;border-radius:0 12px 12px 0;
  margin:32px 0 0;font-size:16px;line-height:1.8;
  color:var(--text-secondary);
}
.article-cover{
  margin:40px 0 48px;
  border-radius:var(--radius);
  overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--shadow);
}
.article-cover img{width:100%;height:auto;object-fit:cover;aspect-ratio:16/9}
.article-content{
  font-size:17px;line-height:1.9;color:var(--text-secondary);
}
.article-content p{margin-bottom:28px}
.article-content h2{
  font-size:26px;font-weight:600;color:var(--text-main);
  margin-top:64px;margin-bottom:20px;
  padding-left:16px;border-left:3px solid var(--accent);
  line-height:1.4;
}
.article-content h3{
  font-size:20px;font-weight:600;color:var(--text-main);
  margin-top:40px;margin-bottom:16px;
}
.article-content img{
  border-radius:12px;border:1px solid var(--border);
  margin:40px 0;
}
.article-content blockquote{
  background:var(--bg-warm);border-left:4px solid var(--primary);
  padding:24px 32px;border-radius:0 12px 12px 0;
  margin:40px 0;color:var(--text-main);font-size:16px;
}
.article-content ul,.article-content ol{
  margin:24px 0;padding-left:28px;color:var(--text-secondary);
}
.article-content ul li{list-style:disc;margin-bottom:10px}
.article-content ol li{list-style:decimal;margin-bottom:10px}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.article-content a:hover{color:var(--accent-hover)}
.article-content code{
  background:#F0EDE4;padding:2px 8px;border-radius:4px;
  font-size:14px;font-family:'SF Mono','Consolas',monospace;
}
.article-content pre{
  background:#1A2620;color:#E8E4DA;padding:24px 28px;
  border-radius:12px;overflow-x:auto;margin:40px 0;
  font-size:14px;line-height:1.7;
}
.article-content pre code{background:none;color:inherit;padding:0}
.article-content figure{margin:40px 0}
.article-content figure img{margin:0}
.article-content figcaption{text-align:center;font-size:13px;color:var(--text-muted);margin-top:8px}

/* ===== Tags ===== */
.article-tags{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:56px;padding-top:32px;
  border-top:1px solid var(--border);
}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 16px;border-radius:999px;
  background:var(--bg-warm);border:1px solid var(--border);
  color:var(--primary);font-size:13px;font-weight:500;
  cursor:default;transition:all var(--transition);
}
.tag:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ===== Related ===== */
.related-section{
  max-width:var(--content-w);margin:0 auto;
  padding-top:64px;margin-top:16px;
  border-top:1px solid var(--border);
}
.related-head{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:32px;
}
.related-head h2{font-size:26px;font-weight:600;color:var(--text-main)}
.related-more{
  font-size:14px;color:var(--text-muted);
  display:inline-flex;align-items:center;gap:6px;
}
.related-more:hover{color:var(--primary)}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.related-card{
  display:flex;align-items:center;
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  transition:all var(--transition);
}
.related-card:hover{
  border-color:var(--primary);box-shadow:var(--shadow);
  transform:translateY(-3px);
}
.related-card img{width:160px;height:120px;object-fit:cover;flex-shrink:0}
.related-card-body{padding:20px 24px;flex:1;min-width:0}
.related-card-body h3{
  font-size:16px;font-weight:600;line-height:1.4;
  margin-bottom:10px;color:var(--text-main);
  overflow:hidden;text-overflow:ellipsis;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.related-card-body .related-date{
  font-size:13px;color:var(--text-muted);
  display:flex;align-items:center;gap:6px;
}

/* ===== Back Link ===== */
.back-link{
  max-width:var(--content-w);margin:56px auto 0;
  padding-bottom:8px;
  display:flex;align-items:center;gap:16px;
}
.back-link a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:500;color:var(--text-secondary);
  padding:10px 20px;border:1px solid var(--border);
  border-radius:var(--radius-sm);background:var(--bg-white);
  transition:all var(--transition);
}
.back-link a:hover{color:var(--primary);border-color:var(--primary);transform:translateX(-2px)}

/* ===== Not Found ===== */
.not-found{
  max-width:var(--content-w);margin:96px auto;
  text-align:center;background:var(--bg-white);
  border:2px dashed var(--border);border-radius:var(--radius);
  padding:80px 40px;
}
.not-found h1{font-size:28px;font-weight:600;margin-bottom:16px;color:var(--text-main)}
.not-found p{color:var(--text-secondary);margin-bottom:32px}

/* ===== Footer ===== */
.site-footer{
  background:var(--primary);color:rgba(255,255,255,.85);
  margin-top:96px;padding:64px 0 0;
}
.footer-top{padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}
.footer-site-name{font-size:22px;font-weight:600;color:#fff;margin-bottom:6px}
.footer-brand-line{color:var(--accent);font-size:14px;margin-bottom:16px;font-weight:500}
.footer-brand-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8}
.footer-links-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:20px;letter-spacing:.02em}
.footer-links li{margin-bottom:12px}
.footer-links a{color:rgba(255,255,255,.6);font-size:14px}
.footer-links a:hover{color:var(--accent)}
.footer-mid{padding:24px 0;border-bottom:1px solid rgba(255,255,255,.1);text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom{padding:24px 0 32px}
.footer-security{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.security-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7)}
.security-item i{color:var(--accent);font-size:16px}

/* ===== Responsive ===== */
@media(max-width:1200px){
  .container{padding:0 32px}
  .nav-left{left:32px}
  .nav-right{right:32px}
}
@media(max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .related-grid{grid-template-columns:1fr}
  .related-card img{width:140px;height:110px}
}
@media(max-width:768px){
  .site-header{height:64px}
  .header-inner{height:64px;justify-content:space-between;padding:0 16px}
  .nav-left,.nav-right{display:none;position:fixed;top:64px;left:0;right:0;background:var(--primary);flex-direction:column;align-items:flex-start;gap:4px;padding:16px 24px 24px;z-index:100;}
  .nav-left{transform:none}
  .nav-right{transform:none;top:auto}
  .header-inner.menu-open .nav-left{display:flex;transform:none;top:64px}
  .header-inner.menu-open .nav-right{display:flex;transform:none;top:auto;left:0;right:0;padding-top:0;padding-bottom:24px;border-top:1px solid rgba(255,255,255,.08)}
  .header-inner.menu-open .nav-left{background:var(--primary);border-bottom:1px solid rgba(255,255,255,.06);padding-bottom:16px}
  .nav-link{font-size:17px;padding:12px 0;width:100%;color:rgba(255,255,255,.9)}
  .btn-login{margin-top:8px;width:100%;justify-content:center;height:44px}
  .brand-logo{position:static;transform:none}
  .brand-name{font-size:18px}
  .brand-tag{font-size:10px;padding:2px 6px}
  .hamburger{display:flex}
  .breadcrumb{padding:20px 0 4px;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .breadcrumb-sep{margin:0 6px}
  .article-detail{padding-top:24px}
  .article-header{padding:24px 0 4px}
  .article-title{font-size:28px;line-height:1.35}
  .article-meta{gap:8px;font-size:13px;padding-bottom:20px}
  .article-summary{padding:20px 20px;font-size:15px}
  .article-cover{margin:28px 0 36px}
  .article-content{font-size:16px}
  .article-content h2{font-size:22px;margin-top:48px}
  .article-content h3{font-size:18px;margin-top:32px}
  .article-content p{margin-bottom:24px}
  .related-section{padding-top:40px;margin-top:8px}
  .related-head h2{font-size:22px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .related-card img{width:120px;height:100px}
  .related-card-body{padding:16px 18px}
  .related-card-body h3{font-size:15px}
  .back-link{margin-top:40px}
  .back-link a{font-size:14px;padding:8px 16px}
  .not-found{margin:64px auto;padding:60px 24px}
  .not-found h1{font-size:24px}
  .site-footer{margin-top:64px;padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-brand-desc{font-size:13px}
  .footer-links-title{margin-bottom:16px}
  .footer-mid{padding:20px 0;font-size:12px}
  .footer-bottom{padding:20px 0 24px}
  .footer-security{gap:12px 24px;justify-content:center}
  .security-item{font-size:13px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .related-card img{width:100px;height:90px}
  .related-card-body{padding:14px 16px}
  .related-card-body h3{font-size:14px}
  .article-title{font-size:24px}
  .article-meta{flex-wrap:wrap}
  .footer-security{gap:10px 16px}
  .btn-primary,.btn-outline{width:100%}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* roulang page: category2 */
:root {
    --color-primary: #0E3B2E;
    --color-primary-dark: #0a2b22;
    --color-accent: #D2FF3E;
    --color-accent-hover: #BEEE30;
    --color-bg: #F4F1EA;
    --color-card: #FFFFFF;
    --color-border: #E8E4DA;
    --color-text: #1A2620;
    --color-text-secondary: #5A6B61;
    --color-text-light: #8C9B92;
    --color-success: #1B7F4C;
    --color-error: #C4472F;
    --radius-card: 16px;
    --radius-btn: 8px;
    --shadow-card: 0 8px 30px rgba(14, 59, 46, 0.08);
    --shadow-accent: 0 4px 16px rgba(210, 255, 62, 0.3);
    --transition: 0.25s ease;
    --font-family: "PingFang SC", "HarmonyOS Sans", "MiSans", "Helvetica Neue", "Microsoft YaHei", sans-serif;
    --font-numeric: "DIN Alternate", "Barlow", "Inter", sans-serif;
    --header-height: 72px;
    --container: 1200px;
    --section-gap: 96px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.9;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul, ol { list-style: none; }

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

.section { padding: var(--section-gap) 0; }
.section-tight { padding: 56px 0; }

.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}
.section-head .section-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--color-primary);
    background: var(--color-accent);
    border-radius: 999px;
    padding: 4px 18px;
    margin-bottom: 16px;
}
.section-head h2 {
    font-size: 28px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: 12px;
}
.section-head p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--color-primary);
    height: var(--header-height);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
    background: rgba(14, 59, 46, 0.92);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 24px rgba(14, 59, 46, 0.15);
}
.header-inner {
    max-width: var(--container);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}
.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-link {
    display: inline-block;
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.82);
    border-radius: 6px;
    position: relative;
    transition: color var(--transition), background var(--transition);
}
.nav-link .fa-chevron-down { font-size: 10px; margin-left: 4px; opacity: 0.7; }
.nav-link:hover { color: var(--color-accent); background: rgba(210, 255, 62, 0.08); }
.nav-link.active { color: var(--color-accent); }
.nav-link.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}
.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 38px;
    padding: 0 20px;
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    margin-left: 8px;
}
.btn-login:hover { background: var(--color-accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-accent); }
.btn-login:active { transform: translateY(1px); }
.brand-logo {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: background var(--transition), border-color var(--transition);
}
.brand-logo:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(210, 255, 62, 0.3); }
.brand-name {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.5px;
}
.brand-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    flex-shrink: 0;
}
.brand-tag {
    font-size: 12px;
    color: var(--color-accent);
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 2px 8px;
    background: rgba(210, 255, 62, 0.12);
    border-radius: 999px;
}
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: transparent;
    border: 0;
    z-index: 1101;
}
.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-primary);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu .nav-link {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    padding: 12px 24px;
}
.mobile-menu .nav-link.active { color: var(--color-accent); }
.mobile-menu .btn-login { margin-top: 16px; height: 44px; padding: 0 32px; font-size: 16px; }

/* ===== Page Hero ===== */
.page-hero {
    position: relative;
    padding: 160px 0 88px;
    background: linear-gradient(135deg, rgba(14, 59, 46, 0.93) 0%, rgba(14, 59, 46, 0.78) 50%, rgba(14, 59, 46, 0.95) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(210, 255, 62, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(210, 255, 62, 0.04) 1px, transparent 1px);
    background-size: 56px 56px;
    pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 24px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.65); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { color: rgba(255, 255, 255, 0.3); font-size: 12px; }
.breadcrumb .current { color: var(--color-accent); }
.page-hero h1 {
    font-size: 36px;
    font-weight: 600;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 16px;
}
.page-hero h1 .hl { color: var(--color-accent); }
.page-hero .hero-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 620px;
    line-height: 1.8;
}

/* ===== Highlights ===== */
.highlights-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 24px;
}
.highlight-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
}
.highlight-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); border-color: var(--color-primary); }
.highlight-card.large { grid-row: span 2; }
.highlight-card .card-img { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.highlight-card.large .card-img { aspect-ratio: 4/3; }
.highlight-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.highlight-card:hover .card-img img { transform: scale(1.04); }
.highlight-card .card-img::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 55%, rgba(14, 59, 46, 0.35) 100%);
}
.highlight-card .card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 999px;
}
.highlight-card .card-body { padding: 24px; flex: 1; }
.highlight-card .card-body h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.highlight-card .card-body p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }
.highlight-card .card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
}
.highlight-card .card-link .fa-arrow-right { transition: transform var(--transition); }
.highlight-card .card-link:hover .fa-arrow-right { transform: translateX(4px); }

/* ===== Timeline ===== */
.timeline-section { background: var(--color-card); }
.timeline-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: start;
}
.timeline-list { position: relative; padding-left: 32px; }
.timeline-list::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-primary) 60%, var(--color-border) 100%);
    border-radius: 2px;
}
.timeline-item {
    position: relative;
    padding: 0 0 28px 16px;
}
.timeline-item::before {
    content: "";
    position: absolute;
    left: -28px;
    top: 8px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-accent);
    box-shadow: 0 0 0 4px rgba(210, 255, 62, 0.2);
}
.timeline-item .tl-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 2px 12px;
    margin-bottom: 8px;
}
.timeline-item h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
.timeline-item p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }
.timeline-media {
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
}
.timeline-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }

/* ===== Process ===== */
.process-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.process-step {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 32px 24px 28px;
    position: relative;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: var(--color-primary); }
.process-step .step-num {
    font-family: var(--font-numeric);
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 16px;
    display: block;
}
.process-step .step-num::after {
    content: "";
    display: block;
    width: 28px;
    height: 3px;
    background: var(--color-accent);
    margin: 12px auto 0;
    border-radius: 3px;
}
.process-step h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.process-step p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

/* ===== Rules ===== */
.rules-section { background: var(--color-card); }
.rules-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.rule-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 28px 24px;
    transition: transform var(--transition), box-shadow var(--transition);
}
.rule-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.rule-item .rule-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--color-primary);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 16px;
}
.rule-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.rule-item p { font-size: 13px; color: var(--color-text-secondary); line-height: 1.7; }

/* ===== FAQ ===== */
.faq-section { background: var(--color-bg); }
.faq-wrap {
    max-width: 860px;
    margin: 0 auto;
}
.faq-group {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow var(--transition), border-color var(--transition);
}
.faq-group.active { border-color: var(--color-primary); box-shadow: 0 4px 20px rgba(14, 59, 46, 0.06); }
.faq-q {
    width: 100%;
    background: transparent;
    border: 0;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    font-size: 17px;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition);
}
.faq-q:hover { color: var(--color-primary); }
.faq-q .fa-chevron-down { color: var(--color-text-light); transition: transform 0.3s ease, color var(--transition); }
.faq-group.active .faq-q .fa-chevron-down { transform: rotate(180deg); color: var(--color-primary); }
.faq-group.active .faq-q { color: var(--color-primary); position: relative; }
.faq-group.active .faq-q::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 22px;
    background: var(--color-accent);
    border-radius: 0 4px 4px 0;
}
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 24px;
}
.faq-group.active .faq-a {
    max-height: 300px;
    padding: 0 24px 22px;
}
.faq-a p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
}

/* ===== CTA ===== */
.cta-section {
    position: relative;
    background: var(--color-primary);
    padding: 80px 0;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(210, 255, 62, 0.2);
    filter: blur(60px);
    pointer-events: none;
}
.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
}
.cta-inner h2 { font-size: 28px; font-weight: 600; color: #fff; margin-bottom: 14px; }
.cta-inner p { font-size: 15px; color: rgba(255, 255, 255, 0.7); margin-bottom: 32px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 46px;
    padding: 0 32px;
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: 15px;
    font-weight: 600;
    border: 0;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-accent); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 46px;
    padding: 0 32px;
    background: transparent;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; }

/* ===== Footer ===== */
.site-footer { background: var(--color-primary); color: rgba(255, 255, 255, 0.7); }
.footer-top { padding: 64px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer-site-name { font-size: 22px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.footer-brand-line { font-size: 14px; color: var(--color-accent); margin-bottom: 12px; }
.footer-brand-desc { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.55); max-width: 260px; }
.footer-links-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255, 255, 255, 0.55); transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent); }
.footer-mid { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 24px 0; text-align: center; }
.footer-mid p { font-size: 13px; color: rgba(255, 255, 255, 0.4); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 24px 0 32px; }
.footer-security { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.security-item { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255, 255, 255, 0.5); }
.security-item .fa- { color: var(--color-accent); }
.security-item i { color: var(--color-accent); font-size: 14px; }

/* ===== Reveal Animation ===== */
.reveal { opacity: 0; transform: translateY(8px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    * { animation: none !important; transition: none !important; }
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .container { padding: 0 32px; }
    .section { --section-gap: 80px; }
}

@media (max-width: 992px) {
    .highlights-grid { grid-template-columns: 1fr 1fr; }
    .highlight-card.large { grid-row: auto; }
    .timeline-layout { grid-template-columns: 1fr; }
    .process-list { grid-template-columns: repeat(2, 1fr); }
    .rules-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .site-header { --header-height: 60px; }
    .nav-left, .nav-right { display: none; }
    .hamburger { display: flex; }
    .header-inner { padding: 0 16px; justify-content: space-between; }
    .brand-logo { position: static; transform: none; padding: 4px 10px; }
    .brand-name { font-size: 18px; }
    .brand-tag { display: none; }
    .page-hero { padding: 120px 0 56px; }
    .page-hero h1 { font-size: 28px; }
    .page-hero .hero-desc { font-size: 15px; }
    .highlights-grid { grid-template-columns: 1fr; }
    .section { --section-gap: 56px; }
    .section-head h2 { font-size: 24px; }
    .timeline-layout { gap: 32px; }
    .process-list { grid-template-columns: 1fr; }
    .rules-grid { grid-template-columns: 1fr; }
    .faq-q { font-size: 16px; padding: 17px 18px; }
    .faq-a { padding: 0 18px; }
    .faq-group.active .faq-a { padding: 0 18px 18px; }
    .cta-inner h2 { font-size: 24px; }
    .footer-top { padding: 48px 0 32px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-security { gap: 20px; }
}

@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .section { --section-gap: 48px; }
    .page-hero { padding: 104px 0 48px; }
    .page-hero h1 { font-size: 24px; }
    .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
    .cta-buttons { flex-direction: column; gap: 12px; }
    .highlight-card .card-body { padding: 20px; }
    .highlight-card .card-body h3 { font-size: 18px; }
    .highlight-card .card-body p { font-size: 13px; }
    .rules-grid { gap: 16px; }
    .rule-item { padding: 22px 18px; }
    .process-step { padding: 24px 18px; }
}