/* roulang page: index */
:root {
  --color-primary: #1F2D2A;
  --color-accent: #C49A5C;
  --color-danger: #B8452F;
  --color-bg: #F5F2EC;
  --color-card: #FFFFFF;
  --color-text: #1B2522;
  --color-text-secondary: #56615D;
  --color-text-light: #F5F2EC;
  --color-text-muted: #B7C0BC;
  --color-border: #E8E3DA;
  --color-input-border: #D9D2C7;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-img: 8px;
  --shadow-sm: 0 6px 20px rgba(27,34,30,0.06);
  --shadow-hover: 0 12px 28px rgba(27,34,30,0.12);
  --transition-normal: 0.2s ease;
  --font-sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans CN",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(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-img); }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-normal); }
a:hover { color: var(--color-accent); }
ul,ol { list-style-position: inside; }
button { font-family: inherit; cursor: pointer; }

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

/* ===== Header & Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--color-primary);
  white-space: nowrap;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: var(--color-accent);
  border-radius: 8px;
  font-size: 18px;
  font-weight: 800;
  flex-shrink: 0;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-desktop a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 6px 0;
  transition: color var(--transition-normal);
}

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

.nav-desktop a:hover { color: var(--color-primary); }
.nav-desktop a:hover::after { width: 100%; }

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--color-primary);
  padding: 80px 32px 32px;
  transition: right 0.3s ease;
  z-index: 200;
}

.mobile-nav.open { right: 0; }

.mobile-nav-close {
  position: absolute;
  top: 20px;
  left: 24px;
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
}

.mobile-nav a {
  display: block;
  color: var(--color-text-light);
  font-size: 16px;
  font-weight: 500;
  padding: 14px 0;
  border-bottom: 1px solid rgba(245,242,236,0.1);
}

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

.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(27,34,30,0.5);
  z-index: 150;
}

.mobile-nav-overlay.show { display: block; }

/* ===== Hero Section ===== */
.hero {
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
  padding: 80px 0 100px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/62f3d8ca67be907e.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(31,45,42,0.85) 0%, rgba(31,45,42,0.7) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.hero-content h1 .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(245,242,236,0.9);
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  border: none;
  transition: all var(--transition-normal);
  line-height: 1.4;
}

.btn:focus-visible {
  outline: 2px solid var(--color-danger);
  outline-offset: 2px;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-light);
}

.btn-primary:hover {
  background: var(--color-primary);
  color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid rgba(245,242,236,0.5);
}

.btn-outline:hover {
  background: rgba(196,154,92,0.15);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-dark {
  background: var(--color-primary);
  color: var(--color-text-light);
}

.btn-dark:hover {
  background: var(--color-accent);
  color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat-number {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-accent);
}

.hero-stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-phone-frame {
  width: 300px;
  height: 520px;
  background: var(--color-card);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-phone-frame::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
}

.hero-phone-frame .phone-placeholder {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196,154,92,0.2) 0%, rgba(31,45,42,0.1) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-phone-frame .phone-placeholder span {
  font-size: 40px;
  color: var(--color-accent);
}

/* ===== Section Base ===== */
.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--color-card);
}

.section-dark {
  background: var(--color-primary);
  color: var(--color-text-light);
}

.section-header {
  max-width: 680px;
  margin-bottom: 44px;
}

.section-header.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.section-header h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-dark .section-header h2 { color: var(--color-text-light); }

.section-header p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.section-dark .section-header p { color: rgba(245,242,236,0.75); }

/* ===== Quick Entry Tabs ===== */
.quick-entry-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.quick-entry-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-normal);
  cursor: default;
}

.quick-entry-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-primary);
  background: rgba(196,154,92,0.06);
}

.quick-entry-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

/* ===== Process Steps ===== */
.process-steps {
  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: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}

.process-step-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Comparison Cards ===== */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.compare-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

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

.compare-card.featured {
  border-color: var(--color-accent);
  position: relative;
}

.compare-card.featured::before {
  content: '常用';
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(196,154,92,0.1);
  padding: 4px 10px;
  border-radius: 12px;
}

.compare-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.compare-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.compare-card ul li {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.compare-card ul li:last-child {
  border-bottom: none;
}

.compare-card ul li::before {
  content: '·';
  color: var(--color-accent);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
}

/* ===== Safety Section ===== */
.safety-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  align-items: start;
}

.safety-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.safety-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: all var(--transition-normal);
}

.safety-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.safety-icon {
  width: 40px;
  height: 40px;
  background: rgba(196,154,92,0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.safety-item h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.safety-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Fee Table ===== */
.fee-table-wrap {
  overflow-x: auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

.fee-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.fee-table th,
.fee-table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border);
}

.fee-table th {
  background: rgba(196,154,92,0.08);
  font-weight: 700;
  color: var(--color-text);
  font-size: 13px;
  letter-spacing: 0.5px;
}

.fee-table tr:last-child td {
  border-bottom: none;
}

.fee-table td {
  color: var(--color-text-secondary);
}

.fee-table .fee-highlight {
  color: var(--color-accent);
  font-weight: 600;
}

/* ===== Tools Section ===== */
.tools-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.tools-image-placeholder {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.tools-image-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tools-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tools-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.tools-list li::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== CMS News List ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

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

.news-card-image {
  aspect-ratio: 16/9;
  background: var(--color-bg);
  overflow: hidden;
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(196,154,92,0.1);
  padding: 4px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
  align-self: flex-start;
}

.news-card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-summary {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  font-size: 12px;
  color: var(--color-text-muted);
}

.news-card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-normal);
}

.news-card-link:hover {
  color: var(--color-primary);
  gap: 8px;
}

/* ===== Sim Trading ===== */
.sim-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.sim-cards {
  display: grid;
  gap: 16px;
}

.sim-card {
  padding: 18px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(245,242,236,0.15);
  border-radius: var(--radius-card);
}

.sim-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.sim-card p {
  font-size: 13px;
  color: rgba(245,242,236,0.7);
  line-height: 1.6;
}

/* ===== Accordion / FAQ ===== */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.accordion-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.accordion-item.open {
  border-color: var(--color-accent);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  background: none;
  border: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.accordion-trigger:hover {
  color: var(--color-accent);
}

.accordion-trigger .arrow {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-accent);
  transition: transform 0.25s ease;
  font-size: 14px;
}

.accordion-item.open .accordion-trigger .arrow {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.accordion-item.open .accordion-content {
  max-height: 300px;
}

.accordion-content-inner {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}

/* ===== Steps / Guide ===== */
.steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.steps-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.steps-list li:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
}

.step-badge {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  color: var(--color-text-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.steps-list li h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.steps-list li p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Growth / Points ===== */
.growth-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.growth-visual {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.growth-badge {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.growth-badge:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
}

.growth-badge-icon {
  font-size: 24px;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.growth-badge h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.growth-badge p {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ===== Download Channel ===== */
.download-channel-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  align-items: start;
}

.channel-icon-box {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.channel-icon-box .icon {
  font-size: 48px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.channel-icon-box h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}

.channel-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.channel-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.channel-list li::before {
  content: '»';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--color-primary);
  padding: 64px 0;
  color: var(--color-text-light);
}

.cta-layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
}

.cta-section h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 12px;
  color: var(--color-text-light);
}

.cta-section p {
  font-size: 15px;
  color: rgba(245,242,236,0.75);
  line-height: 1.7;
}

.cta-form {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.cta-form input {
  height: 48px;
  padding: 0 16px;
  background: var(--color-card);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-btn);
  font-size: 14px;
  color: var(--color-text);
  min-width: 240px;
  transition: all var(--transition-normal);
}

.cta-form input:focus {
  border-color: var(--color-accent);
  box-shadow: 3px 3px 0 rgba(196,154,92,0.18);
  outline: none;
}

/* ===== Risk Disclaimer ===== */
.risk-disclaimer {
  background: #EAE5DD;
  padding: 24px 0;
  border-top: 1px solid var(--color-border);
}

.risk-disclaimer p {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  text-align: center;
  margin: 0;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: var(--color-text-light);
  border-top: 4px solid var(--color-accent);
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 56px 0 40px;
}

.footer-brand .logo {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 6px 0;
  transition: color var(--transition-normal);
}

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

.footer-bottom {
  padding: 18px 0;
  border-top: 1px solid rgba(245,242,236,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .hero-phone-frame { width: 240px; height: 400px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .compare-grid { grid-template-columns: repeat(2, 1fr); }
  .safety-layout { grid-template-columns: 1fr; gap: 24px; }
  .safety-list { grid-template-columns: 1fr 1fr; }
  .tools-layout { grid-template-columns: 1fr; gap: 24px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .sim-layout { grid-template-columns: 1fr; gap: 24px; }
  .growth-layout { grid-template-columns: 1fr; gap: 24px; }
  .download-channel-layout { grid-template-columns: 1fr; gap: 24px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .header-inner { height: 60px; }
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .mobile-nav { display: block; }
  .process-steps { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .safety-list { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .cta-layout { grid-template-columns: 1fr; gap: 24px; }
  .cta-form { flex-direction: column; align-items: stretch; }
  .cta-form input { min-width: 100%; }
  .footer-main { grid-template-columns: 1fr; gap: 24px; padding: 36px 0 24px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
  .hero { padding: 48px 0 64px; }
  .hero-stats { gap: 20px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-phone-frame { width: 200px; height: 340px; }
  .hero-stats { gap: 12px; }
  .hero-stat-number { font-size: 20px; }
  .hero-stat-label { font-size: 11px; }
  .quick-entry-tag { font-size: 12px; padding: 8px 14px; }
  .compare-card { padding: 20px 16px; }
  .growth-visual { grid-template-columns: 1fr; gap: 12px; }
  .risk-disclaimer p { text-align: left; }
}

/* roulang page: category1 */
:root {
            --color-primary: #1F2D2A;
            --color-accent: #C49A5C;
            --color-danger: #B8452F;
            --color-bg: #F5F2EC;
            --color-card: #FFFFFF;
            --color-text: #1B2522;
            --color-text-secondary: #56615D;
            --color-text-light: #F5F2EC;
            --color-text-muted: #B7C0BC;
            --color-border: #E8E3DA;
            --color-input-border: #D9D2C7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-img: 8px;
            --shadow-sm: 0 6px 20px rgba(27,34,30,0.06);
            --shadow-hover: 0 12px 28px rgba(27,34,30,0.12);
            --transition-normal: 0.2s ease;
            --font-sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans CN",sans-serif;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-img); }
        a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-normal); }
        a:hover { color: var(--color-accent); }
        button { font-family: inherit; cursor: pointer; }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: var(--color-primary);
            white-space: nowrap;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: var(--color-accent);
            border-radius: 8px;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            transition: color var(--transition-normal);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width var(--transition-normal);
        }
        .nav-desktop a:hover { color: var(--color-primary); }
        .nav-desktop a:hover::after { width: 100%; }
        .nav-desktop a.active {
            color: var(--color-primary);
            font-weight: 700;
        }
        .nav-desktop a.active::after { width: 100%; }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }
        .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.open span:nth-child(2) { opacity: 0; }
        .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: var(--color-primary);
            padding: 80px 32px 32px;
            transition: right 0.3s ease;
            z-index: 200;
        }
        .mobile-nav.open { right: 0; }
        .mobile-nav-close {
            position: absolute;
            top: 20px;
            left: 24px;
            background: none;
            border: none;
            color: var(--color-text-light);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
        }
        .mobile-nav a {
            display: block;
            color: var(--color-text-light);
            font-size: 16px;
            font-weight: 500;
            padding: 14px 0;
            border-bottom: 1px solid rgba(245,242,236,0.1);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--color-accent);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(27,34,30,0.5);
            z-index: 150;
        }
        .mobile-nav-overlay.show { display: block; }
        /* ===== Section Common ===== */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--color-card);
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 40px;
        }
        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-header p {
            font-size: 15px;
            color: var(--color-text-secondary);
            margin: 0;
        }
        /* ===== Breadcrumb ===== */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 12px;
        }
        .breadcrumb-nav a {
            color: var(--color-text-secondary);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-nav .sep {
            color: var(--color-text-muted);
        }
        .breadcrumb-nav .current {
            color: var(--color-primary);
            font-weight: 500;
        }
        /* ===== Category Hero ===== */
        .cat-hero {
            background: linear-gradient(135deg, #F5F2EC 0%, #EFE9DF 100%);
            padding: 36px 0 42px;
            border-bottom: 1px solid var(--color-border);
        }
        .cat-hero h1 {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .cat-hero .cat-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 680px;
            margin: 0;
        }
        /* ===== Sub Topic Anchor Nav ===== */
        .cat-subnav {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            margin-top: -28px;
            position: relative;
            z-index: 5;
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            display: flex;
            gap: 10px;
        }
        .cat-subnav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: var(--color-bg);
            border-radius: 999px;
            white-space: nowrap;
            border: 1px solid transparent;
            transition: all var(--transition-normal);
        }
        .cat-subnav a:hover,
        .cat-subnav a:focus {
            background: rgba(196,154,92,0.12);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        /* ===== Card List ===== */
        .card-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .item-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 22px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .item-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }
        .item-category {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(196,154,92,0.12);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.5px;
        }
        .item-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--color-primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 54px;
        }
        .item-card h3 a {
            color: var(--color-primary);
        }
        .item-card h3 a:hover {
            color: var(--color-accent);
        }
        .item-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
            flex-grow: 1;
        }
        .item-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .item-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-normal);
        }
        .item-link:hover {
            color: var(--color-primary);
            gap: 8px;
        }
        .list-more {
            text-align: center;
            margin-top: 28px;
        }
        /* ===== Feature Block ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-block.reverse {
            grid-template-columns: 1fr 1fr;
        }
        .feature-image {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .feature-image img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .feature-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .feature-content p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .feature-content ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .feature-content ul li {
            position: relative;
            padding-left: 22px;
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--color-text-secondary);
        }
        .feature-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }
        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-top: 8px;
        }
        .step-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin: 0;
        }
        /* ===== Related List ===== */
        .related-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .related-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 18px;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 10px;
            transition: all var(--transition-normal);
        }
        .related-item:hover {
            background: var(--color-card);
            border-color: var(--color-accent);
        }
        .related-item a {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-item a:hover {
            color: var(--color-accent);
        }
        .related-item time {
            font-size: 12px;
            color: var(--color-text-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 8px;
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
            transition: color var(--transition-normal);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-arrow {
            flex-shrink: 0;
            font-size: 18px;
            color: var(--color-accent);
            transition: transform 0.25s ease;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
            background: var(--color-bg);
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        /* ===== Bottom CTA ===== */
        .cta-section {
            background: var(--color-primary);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/62f3d8ca67be907e.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-inner h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--color-text-light);
            margin: 0;
            line-height: 1.4;
        }
        .cta-inner p {
            font-size: 14px;
            color: rgba(245,242,236,0.75);
            margin: 6px 0 0;
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: none;
            transition: all var(--transition-normal);
            line-height: 1.4;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-danger);
            outline-offset: 2px;
        }
        .btn:active {
            transform: scale(0.98);
        }
        .btn-primary {
            background: var(--color-accent);
            color: var(--color-text-light);
        }
        .btn-primary:hover {
            background: var(--color-primary);
            color: var(--color-text-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-text-light);
            border: 1px solid rgba(245,242,236,0.5);
        }
        .btn-outline:hover {
            background: rgba(196,154,92,0.15);
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .btn-dark {
            background: var(--color-primary);
            color: var(--color-text-light);
        }
        .btn-dark:hover {
            background: var(--color-accent);
            color: var(--color-text-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary);
            border-top: 4px solid var(--color-accent);
            padding: 50px 0 24px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            color: var(--color-text-light);
            margin-bottom: 14px;
        }
        .footer-brand .logo-mark {
            background: var(--color-accent);
            color: var(--color-text-light);
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 6px 0;
            transition: color var(--transition-normal);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(245,242,236,0.08);
            padding-top: 20px;
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .footer-bottom p {
            margin: 0;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .card-list-grid {
                grid-template-columns: 1fr;
            }
            .feature-block,
            .feature-block.reverse {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .feature-image img {
                height: 220px;
            }
            .footer-main {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }
        @media (max-width: 767px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .section {
                padding: 40px 0;
            }
            .cat-hero {
                padding: 28px 0 34px;
            }
            .cat-subnav {
                margin-top: -22px;
                padding: 12px 16px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .related-list {
                grid-template-columns: 1fr;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .card-list-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                height: 62px;
            }
            .logo {
                font-size: 15px;
                gap: 8px;
            }
            .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 6px;
            }
            .cat-hero h1 {
                font-size: 26px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .cat-subnav a {
                font-size: 12px;
                padding: 6px 12px;
            }
            .feature-image img {
                height: 180px;
            }
            .item-card h3 {
                font-size: 16px;
                min-height: auto;
            }
            .section-header h2 {
                font-size: 20px;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #1F2D2A;
            --color-accent: #C49A5C;
            --color-danger: #B8452F;
            --color-bg: #F5F2EC;
            --color-card: #FFFFFF;
            --color-text: #1B2522;
            --color-text-secondary: #56615D;
            --color-text-light: #F5F2EC;
            --color-text-muted: #B7C0BC;
            --color-border: #E8E3DA;
            --color-input-border: #D9D2C7;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-img: 8px;
            --shadow-sm: 0 6px 20px rgba(27, 34, 30, 0.06);
            --shadow-hover: 0 12px 28px rgba(27, 34, 30, 0.12);
            --transition-normal: 0.2s ease;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 72px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-normal);
        }
        a:hover {
            color: var(--color-accent);
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            font-weight: 700;
            color: var(--color-text);
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: var(--color-primary);
            white-space: nowrap;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: var(--color-accent);
            border-radius: 8px;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            transition: color var(--transition-normal);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width var(--transition-normal);
        }
        .nav-desktop a:hover {
            color: var(--color-primary);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .nav-desktop a.active {
            color: var(--color-primary);
            font-weight: 700;
        }
        .nav-desktop a.active::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: var(--color-primary);
            padding: 80px 32px 32px;
            transition: right 0.3s ease;
            z-index: 200;
        }
        .mobile-nav.open {
            right: 0;
        }
        .mobile-nav-close {
            position: absolute;
            top: 20px;
            left: 24px;
            background: none;
            border: none;
            color: var(--color-text-light);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
        }
        .mobile-nav a {
            display: block;
            color: var(--color-text-light);
            font-size: 16px;
            font-weight: 500;
            padding: 14px 0;
            border-bottom: 1px solid rgba(245, 242, 236, 0.1);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--color-accent);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(27, 34, 30, 0.5);
            z-index: 150;
        }
        .mobile-nav-overlay.show {
            display: block;
        }
        /* ===== Article Page Specific Styles ===== */
        .article-page {
            padding: 40px 0 80px;
            background-color: var(--color-bg);
        }
        .article-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }
        /* Breadcrumb */
        .breadcrumb-area {
            margin-bottom: 24px;
            font-size: 14px;
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .breadcrumb-area a {
            color: var(--color-text-secondary);
        }
        .breadcrumb-area a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-sep {
            color: var(--color-text-muted);
            margin: 0 4px;
        }
        .breadcrumb-current {
            color: var(--color-primary);
            font-weight: 600;
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .breadcrumb-category {
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        /* Article Header */
        .article-header {
            margin-bottom: 32px;
        }
        .article-header h1 {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 800;
            line-height: 1.35;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--color-text-secondary);
            padding-bottom: 20px;
            border-bottom: 1px solid var(--color-border);
        }
        .article-meta .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(196, 154, 92, 0.1);
            color: var(--color-primary);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }
        .article-meta .meta-divider {
            color: var(--color-text-muted);
        }
        /* TOC */
        .article-toc {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 28px;
            box-shadow: var(--shadow-sm);
        }
        .article-toc-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .article-toc-title::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 16px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .article-toc-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-toc-list li {
            margin: 0;
        }
        .article-toc-list a {
            display: inline-block;
            padding: 6px 14px;
            background: var(--color-bg);
            border-radius: 6px;
            font-size: 13px;
            color: var(--color-text-secondary);
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }
        .article-toc-list a:hover {
            background: rgba(196, 154, 92, 0.1);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .article-toc-empty {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0;
        }
        /* Article Content */
        .article-content {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px 48px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 32px;
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text);
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 32px 0 16px;
            line-height: 1.4;
            color: var(--color-text);
            padding-top: 8px;
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 24px 0 12px;
            line-height: 1.4;
            color: var(--color-text);
        }
        .article-content p {
            margin: 16px 0;
            line-height: 1.8;
            color: var(--color-text);
        }
        .article-content ul,
        .article-content ol {
            padding-left: 28px;
            margin: 16px 0;
            line-height: 1.8;
        }
        .article-content li {
            margin-bottom: 6px;
        }
        .article-content blockquote {
            border-left: 4px solid var(--color-accent);
            background: var(--color-bg);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            color: var(--color-text-secondary);
            font-style: normal;
        }
        .article-content img {
            border-radius: var(--radius-img);
            margin: 24px auto;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 15px;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--color-border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content table th {
            background: var(--color-bg);
            font-weight: 600;
            color: var(--color-primary);
        }
        .article-not-found {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 60px 40px;
            text-align: center;
            margin-bottom: 32px;
        }
        .article-not-found h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text);
        }
        .article-not-found p {
            color: var(--color-text-secondary);
            margin-bottom: 20px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: none;
            transition: all var(--transition-normal);
            line-height: 1.4;
            text-decoration: none;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-danger);
            outline-offset: 2px;
        }
        .btn:active {
            transform: scale(0.98);
        }
        .btn-primary {
            background: var(--color-primary);
            color: var(--color-text-light);
        }
        .btn-primary:hover {
            background: var(--color-accent);
            color: var(--color-text-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }
        .btn-outline-dark:hover {
            background: var(--color-primary);
            color: var(--color-text-light);
            border-color: var(--color-primary);
        }
        /* Related Articles */
        .related-section {
            margin-bottom: 32px;
        }
        .related-heading {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-heading::before {
            content: '';
            display: inline-block;
            width: 5px;
            height: 20px;
            background: var(--color-accent);
            border-radius: 3px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }
        .related-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .related-card-body {
            padding: 16px 18px 20px;
        }
        .related-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-title a {
            color: var(--color-text);
            text-decoration: none;
        }
        .related-card-title a:hover {
            color: var(--color-accent);
        }
        .related-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .related-card-tag {
            padding: 3px 10px;
            background: rgba(196, 154, 92, 0.1);
            color: var(--color-primary);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
        }
        .related-empty {
            background: var(--color-card);
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px;
            text-align: center;
            color: var(--color-text-muted);
            font-size: 15px;
        }
        /* Back Area */
        .back-area {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-bottom: 32px;
        }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: color var(--transition-normal);
        }
        .back-link:hover {
            color: var(--color-accent);
        }
        .back-link-arrow {
            font-size: 18px;
            line-height: 1;
        }
        /* Article CTA */
        .article-cta {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            margin-bottom: 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            position: relative;
            overflow: hidden;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(196, 154, 92, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .article-cta-content {
            position: relative;
            z-index: 1;
        }
        .article-cta-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .article-cta-subtitle {
            font-size: 14px;
            color: rgba(245, 242, 236, 0.8);
            margin: 0;
        }
        .article-cta-buttons {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .article-cta .btn-accent {
            background: var(--color-accent);
            color: var(--color-text-light);
        }
        .article-cta .btn-accent:hover {
            background: var(--color-text-light);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .article-cta .btn-outline-light {
            background: transparent;
            color: var(--color-text-light);
            border: 1px solid rgba(245, 242, 236, 0.5);
        }
        .article-cta .btn-outline-light:hover {
            background: rgba(196, 154, 92, 0.15);
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        /* Risk Warning */
        .risk-warning {
            background: #F0ECE5;
            border: 1px solid #E8E3DA;
            border-radius: 8px;
            padding: 16px 20px;
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .risk-warning strong {
            color: var(--color-danger);
            font-weight: 700;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary);
            border-top: 4px solid var(--color-accent);
            padding: 48px 0 0;
            margin-top: 0;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(245, 242, 236, 0.1);
        }
        .footer-brand .logo {
            color: var(--color-text-light);
            margin-bottom: 12px;
        }
        .footer-brand .logo .logo-mark {
            background: var(--color-accent);
            color: var(--color-primary);
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 0;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 5px 0;
            transition: color var(--transition-normal);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            padding: 18px 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .footer-bottom p {
            margin: 0;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-content {
                padding: 32px 28px;
            }
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 767px) {
            body {
                padding-top: 64px;
            }
            .header-inner {
                height: 64px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .article-page {
                padding: 24px 0 48px;
            }
            .article-content {
                padding: 24px 18px;
                font-size: 16px;
            }
            .article-content h2 {
                font-size: 21px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-cta {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }
            .article-cta-buttons {
                width: 100%;
                flex-direction: column;
            }
            .article-cta-buttons .btn {
                width: 100%;
            }
            .article-meta {
                gap: 10px;
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .container {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .article-header h1 {
                font-size: 24px;
            }
            .article-content {
                padding: 20px 14px;
                font-size: 15px;
            }
            .article-content h2 {
                font-size: 19px;
            }
            .back-area {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
    --color-primary: #1F2D2A;
    --color-accent: #C49A5C;
    --color-danger: #B8452F;
    --color-bg: #F5F2EC;
    --color-card: #FFFFFF;
    --color-text: #1B2522;
    --color-text-secondary: #56615D;
    --color-text-light: #F5F2EC;
    --color-text-muted: #B7C0BC;
    --color-border: #E8E3DA;
    --color-input-border: #D9D2C7;
    --radius-card: 14px;
    --radius-btn: 10px;
    --radius-img: 8px;
    --shadow-sm: 0 6px 20px rgba(27,34,30,0.06);
    --shadow-hover: 0 12px 28px rgba(27,34,30,0.12);
    --transition-normal: 0.2s ease;
    --font-sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans CN",sans-serif;
  }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-img); }
  a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-normal); }
  a:hover { color: var(--color-accent); }
  button { font-family: inherit; cursor: pointer; }
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ===== Header & Navigation ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 18px;
    color: var(--color-primary);
    white-space: nowrap;
  }
  .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: var(--color-accent);
    border-radius: 8px;
    font-size: 18px;
    font-weight: 800;
    flex-shrink: 0;
  }
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 28px;
  }
  .nav-desktop a {
    position: relative;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 6px 0;
    transition: color var(--transition-normal);
  }
  .nav-desktop a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
  }
  .nav-desktop a:hover { color: var(--color-primary); }
  .nav-desktop a:hover::after { width: 100%; }
  .nav-desktop a.active {
    color: var(--color-primary);
    font-weight: 700;
  }
  .nav-desktop a.active::after { width: 100%; }
  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
  }
  .nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-primary);
    padding: 80px 32px 32px;
    transition: right 0.3s ease;
    z-index: 200;
  }
  .mobile-nav.open { right: 0; }
  .mobile-nav-close {
    position: absolute;
    top: 20px;
    left: 24px;
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
  }
  .mobile-nav a {
    display: block;
    color: var(--color-text-light);
    font-size: 16px;
    font-weight: 500;
    padding: 14px 0;
    border-bottom: 1px solid rgba(245,242,236,0.1);
  }
  .mobile-nav a:hover,
  .mobile-nav a.active {
    color: var(--color-accent);
  }
  .mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(27,34,30,0.5);
    z-index: 150;
  }
  .mobile-nav-overlay.show { display: block; }

  /* ===== Category Hero ===== */
  .category-hero {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 48px 0 40px;
    position: relative;
    overflow: hidden;
  }
  .category-hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(196,154,92,0.08) 100%);
    pointer-events: none;
  }
  .breadcrumb {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }
  .breadcrumb a {
    color: var(--color-text-secondary);
    transition: color var(--transition-normal);
  }
  .breadcrumb a:hover {
    color: var(--color-accent);
  }
  .breadcrumb .divider {
    color: var(--color-text-muted);
  }
  .breadcrumb .current {
    color: var(--color-primary);
    font-weight: 600;
  }
  .category-hero h1 {
    font-size: clamp(28px, 3.5vw, 38px);
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 12px;
    line-height: 1.35;
  }
  .category-hero .category-description {
    font-size: 17px;
    color: var(--color-text-secondary);
    max-width: 720px;
    line-height: 1.7;
  }

  /* ===== Section Common ===== */
  section {
    padding: 64px 0;
  }
  section.alt-bg {
    background: var(--color-card);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }
  .section-heading {
    margin-bottom: 40px;
  }
  .section-heading h2 {
    font-size: clamp(24px, 2.8vw, 32px);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
    line-height: 1.35;
  }
  .section-heading p {
    font-size: 15px;
    color: var(--color-text-secondary);
    max-width: 700px;
    line-height: 1.7;
  }
  .section-heading .accent-line {
    display: inline-block;
    width: 48px;
    height: 3px;
    background: var(--color-accent);
    border-radius: 4px;
    margin-bottom: 16px;
  }

  /* ===== Anchor Nav ===== */
  .anchor-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 8px;
  }
  .anchor-nav a {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-normal);
    white-space: nowrap;
  }
  .anchor-nav a:hover {
    color: var(--color-primary);
    border-color: var(--color-accent);
    background: rgba(196,154,92,0.08);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
  }

  /* ===== Cards Grid ===== */
  .cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .card-item {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
  }
  .card-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }
  .card-item .card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: #E8E3DA;
  }
  .card-item .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }
  .card-item:hover .card-image img {
    transform: scale(1.05);
  }
  .card-item .card-body {
    padding: 20px 22px 22px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
  }
  .card-item .card-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(196,154,92,0.1);
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 600;
    border-radius: 12px;
    margin-bottom: 10px;
    align-self: flex-start;
  }
  .card-item .card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.4;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .card-item .card-summary {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
  }
  .card-item .card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    padding-top: 14px;
  }
  .card-item .card-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all var(--transition-normal);
  }
  .card-item .card-link:hover {
    gap: 8px;
    color: var(--color-primary);
  }
  .empty-state {
    text-align: center;
    padding: 48px 20px;
    background: var(--color-card);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-card);
    color: var(--color-text-secondary);
  }

  /* ===== Image Text Block ===== */
  .image-text-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .image-text-block.reverse {
    direction: rtl;
  }
  .image-text-block.reverse > * {
    direction: ltr;
  }
  .image-text-block .image-wrapper {
    border-radius: var(--radius-card);
    overflow: hidden;
    background: #E8E3DA;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-sm);
  }
  .image-text-block .image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-card);
  }
  .image-text-block .text-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    line-height: 1.4;
  }
  .image-text-block .text-content p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
  }
  .image-text-block .text-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .image-text-block .text-content ul li {
    position: relative;
    padding-left: 28px;
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 10px;
  }
  .image-text-block .text-content ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-accent);
  }

  /* ===== Steps ===== */
  .steps-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: step;
  }
  .step-item {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 28px 24px;
    position: relative;
    transition: all var(--transition-normal);
    counter-increment: step;
  }
  .step-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
  }
  .step-item::before {
    content: counter(step);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: var(--color-accent);
    border-radius: 50%;
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 16px;
  }
  .step-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
    line-height: 1.4;
  }
  .step-item p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
  }

  /* ===== Related List ===== */
  .related-list {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
  }
  .related-list .related-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-normal);
  }
  .related-list .related-item:last-child {
    border-bottom: none;
  }
  .related-list .related-item:hover {
    background: rgba(196,154,92,0.05);
  }
  .related-list .related-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    flex-grow: 1;
    transition: color var(--transition-normal);
  }
  .related-list .related-item:hover .related-title {
    color: var(--color-accent);
  }
  .related-list .related-time {
    font-size: 13px;
    color: var(--color-text-muted);
    white-space: nowrap;
  }

  /* ===== FAQ ===== */
  .faq-accordion .faq-item {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color var(--transition-normal);
  }
  .faq-accordion .faq-item:hover {
    border-color: var(--color-accent);
  }
  .faq-accordion .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    gap: 16px;
    transition: background var(--transition-normal);
  }
  .faq-accordion .faq-question:hover {
    background: rgba(196,154,92,0.05);
  }
  .faq-accordion .faq-question .faq-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 20px;
    font-weight: 700;
    transition: transform 0.25s ease;
  }
  .faq-accordion .faq-item.active .faq-icon {
    transform: rotate(45deg);
  }
  .faq-accordion .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease, padding 0.25s ease;
    padding: 0 24px;
    background: var(--color-bg);
  }
  .faq-accordion .faq-item.active .faq-answer {
    max-height: 300px;
    padding: 16px 24px 20px;
  }
  .faq-accordion .faq-answer p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
  }

  /* ===== CTA ===== */
  .cta-section {
    background: var(--color-primary);
    border-radius: var(--radius-card);
    padding: 48px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/62f3d8ca67be907e.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
  }
  .cta-section > * {
    position: relative;
    z-index: 2;
  }
  .cta-section .cta-text h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 8px;
    line-height: 1.4;
  }
  .cta-section .cta-text p {
    font-size: 15px;
    color: rgba(245,242,236,0.8);
    margin: 0;
    line-height: 1.6;
  }
  .cta-section .cta-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--color-primary);
    border-top: 4px solid var(--color-accent);
    padding: 56px 0 0;
    margin-top: 0;
  }
  .footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
  }
  .footer-brand .logo {
    color: var(--color-text-light);
    margin-bottom: 16px;
  }
  .footer-brand .logo-mark {
    background: var(--color-accent);
    color: var(--color-text-light);
  }
  .footer-brand p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.7;
    max-width: 320px;
  }
  .footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 18px;
  }
  .footer-col a {
    display: block;
    font-size: 14px;
    color: var(--color-text-muted);
    padding: 6px 0;
    transition: color var(--transition-normal);
  }
  .footer-col a:hover {
    color: var(--color-accent);
  }
  .footer-bottom {
    border-top: 1px solid rgba(245,242,236,0.1);
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    text-align: center;
  }
  .footer-bottom p {
    font-size: 12px;
    color: var(--color-text-muted);
    margin: 0;
  }
  .footer-bottom .risk-warning {
    color: var(--color-danger);
    font-size: 12px;
    opacity: 0.9;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .cards-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .steps-container {
      grid-template-columns: repeat(2, 1fr);
    }
    .footer-main {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .image-text-block {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .image-text-block.reverse {
      direction: ltr;
    }
  }
  @media (max-width: 768px) {
    .nav-desktop {
      display: none;
    }
    .nav-toggle {
      display: flex;
    }
    .mobile-nav {
      display: block;
    }
    .cards-grid {
      grid-template-columns: 1fr;
    }
    .steps-container {
      grid-template-columns: 1fr;
    }
    .footer-main {
      grid-template-columns: 1fr;
      gap: 24px;
    }
    .category-hero {
      padding: 32px 0 28px;
    }
    .category-hero h1 {
      font-size: 24px;
    }
    .cta-section {
      padding: 36px 24px;
      flex-direction: column;
      align-items: flex-start;
    }
    .anchor-nav {
      gap: 8px;
    }
    .anchor-nav a {
      padding: 8px 16px;
      font-size: 13px;
    }
    section {
      padding: 40px 0;
    }
  }
  @media (max-width: 520px) {
    .container {
      padding: 0 16px;
    }
    .anchor-nav a {
      font-size: 12px;
      padding: 6px 12px;
    }
    .related-list .related-item {
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }
    .related-list .related-time {
      white-space: normal;
    }
  }

/* roulang page: category2 */
:root {
    --color-primary: #1F2D2A;
    --color-accent: #C49A5C;
    --color-danger: #B8452F;
    --color-bg: #F5F2EC;
    --color-card: #FFFFFF;
    --color-text: #1B2522;
    --color-text-secondary: #56615D;
    --color-text-light: #F5F2EC;
    --color-text-muted: #B7C0BC;
    --color-border: #E8E3DA;
    --color-input-border: #D9D2C7;
    --radius-card: 14px;
    --radius-btn: 10px;
    --radius-img: 8px;
    --shadow-sm: 0 6px 20px rgba(27,34,30,0.06);
    --shadow-hover: 0 12px 28px rgba(27,34,30,0.12);
    --transition-normal: 0.2s ease;
    --font-sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans CN",sans-serif;
  }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-img); }
  a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-normal); }
  a:hover { color: var(--color-accent); }
  button { font-family: inherit; cursor: pointer; }
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }
  /* ===== Header & Navigation ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 18px;
    color: var(--color-primary);
    white-space: nowrap;
  }
  .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: var(--color-accent);
    border-radius: 8px;
    font-size: 18px;
    font-weight: 800;
    flex-shrink: 0;
  }
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 28px;
  }
  .nav-desktop a {
    position: relative;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 6px 0;
    transition: color var(--transition-normal);
  }
  .nav-desktop a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
  }
  .nav-desktop a:hover { color: var(--color-primary); }
  .nav-desktop a:hover::after { width: 100%; }
  .nav-desktop a.active {
    color: var(--color-primary);
    font-weight: 700;
  }
  .nav-desktop a.active::after { width: 100%; }
  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
  }
  .nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-primary);
    padding: 80px 32px 32px;
    transition: right 0.3s ease;
    z-index: 200;
  }
  .mobile-nav.open { right: 0; }
  .mobile-nav-close {
    position: absolute;
    top: 20px;
    left: 24px;
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
  }
  .mobile-nav a {
    display: block;
    color: var(--color-text-light);
    font-size: 16px;
    font-weight: 500;
    padding: 14px 0;
    border-bottom: 1px solid rgba(245,242,236,0.1);
  }
  .mobile-nav a:hover,
  .mobile-nav a.active {
    color: var(--color-accent);
  }
  .mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(27,34,30,0.5);
    z-index: 150;
  }
  .mobile-nav-overlay.show { display: block; }
  /* ===== Category H1 Hero (compact) ===== */
  .category-hero {
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 42px 0 50px;
  }
  .breadcrumb {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 12px;
  }
  .breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 8px;
  }
  .breadcrumb li {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .breadcrumb li + li::before {
    content: '/';
    color: var(--color-text-muted);
    font-size: 13px;
  }
  .breadcrumb a {
    color: var(--color-text-secondary);
  }
  .breadcrumb a:hover {
    color: var(--color-accent);
  }
  .breadcrumb li[aria-current="page"] {
    color: var(--color-primary);
    font-weight: 600;
  }
  .category-hero h1 {
    font-size: clamp(24px, 3.2vw, 36px);
    font-weight: 800;
    line-height: 1.3;
    color: var(--color-primary);
    margin-bottom: 10px;
  }
  .category-hero .hero-desc {
    font-size: 16px;
    color: var(--color-text-secondary);
    max-width: 720px;
    line-height: 1.7;
    margin-bottom: 0;
  }
  /* ===== Subtopics Anchor Nav ===== */
  .subtopics-section {
    background: var(--color-bg);
    padding: 22px 0;
    border-bottom: 1px solid var(--color-border);
  }
  .subtopics {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }
  .subtopic-pill {
    display: inline-flex;
    align-items: center;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    transition: all var(--transition-normal);
    white-space: nowrap;
  }
  .subtopic-pill:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: rgba(196,154,92,0.08);
  }
  /* ===== General Section ===== */
  .section {
    padding: 60px 0;
  }
  .section-alt {
    background: var(--color-card);
  }
  .section-head {
    margin-bottom: 32px;
  }
  .section-head h2 {
    font-size: clamp(22px, 2.8vw, 30px);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
  }
  .section-head .section-sub {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 680px;
    margin-bottom: 0;
  }
  /* ===== Content Cards List ===== */
  .content-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .content-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 22px 20px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
  }
  .content-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
  }
  .content-card-link {
    display: flex;
    flex-direction: column;
    flex: 1;
  }
  .content-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .content-card .card-summary {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .content-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
  }
  .content-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-accent);
    background: rgba(196,154,92,0.1);
    border-radius: 4px;
    white-space: nowrap;
  }
  .content-time {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-left: auto;
  }
  .read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: all var(--transition-normal);
    margin-top: 14px;
  }
  .read-more .arrow {
    transition: transform var(--transition-normal);
  }
  .read-more:hover {
    color: var(--color-accent);
  }
  .read-more:hover .arrow {
    transform: translateX(4px);
  }
  .empty-state {
    text-align: center;
    padding: 40px 20px;
    font-size: 15px;
    color: var(--color-text-muted);
    background: var(--color-card);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-card);
  }
  .list-footer {
    margin-top: 24px;
    text-align: center;
  }
  .list-footer .btn {
    min-width: 180px;
  }
  /* ===== Detail Grid / Image Text Block ===== */
  .detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
  }
  .detail-image {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    aspect-ratio: 4/3;
  }
  .detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .detail-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
  }
  .detail-content p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 14px;
  }
  .detail-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .detail-content ul li {
    position: relative;
    padding-left: 20px;
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
  }
  .detail-content ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
  }
  /* ===== Steps ===== */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .step-item {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 24px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
  }
  .step-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
  }
  .step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: var(--color-accent);
    font-size: 18px;
    font-weight: 800;
    border-radius: 50%;
    margin-bottom: 14px;
  }
  .step-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
  }
  .step-item p {
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
  }
  /* ===== Related Docs List ===== */
  .docs-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .doc-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 16px 20px;
    transition: all var(--transition-normal);
  }
  .doc-item:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
  }
  .doc-item .doc-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    flex: 1;
  }
  .doc-item .doc-time {
    font-size: 12px;
    color: var(--color-text-muted);
    white-space: nowrap;
  }
  /* ===== FAQ ===== */
  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .faq-item {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    transition: all var(--transition-normal);
  }
  .faq-item summary {
    padding: 16px 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    user-select: none;
  }
  .faq-item summary::-webkit-details-marker {
    display: none;
  }
  .faq-item summary::after {
    content: '▾';
    color: var(--color-accent);
    font-size: 14px;
    transition: transform 0.25s ease;
    flex-shrink: 0;
  }
  .faq-item[open] {
    border-color: var(--color-border);
    background: var(--color-bg);
  }
  .faq-item[open] summary::after {
    transform: rotate(180deg);
  }
  .faq-body {
    padding: 0 20px 16px;
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
  }
  /* ===== CTA Section ===== */
  .cta-section {
    background: var(--color-primary);
    padding: 56px 0;
    position: relative;
    overflow: hidden;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(31,45,42,0.95) 0%, rgba(31,45,42,0.8) 100%);
  }
  .cta-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
  }
  .cta-text h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 8px;
  }
  .cta-text p {
    font-size: 14px;
    color: rgba(245,242,236,0.8);
    margin-bottom: 0;
  }
  .btn-accent {
    background: var(--color-accent);
    color: var(--color-text-light);
    border: none;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .btn-accent:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }
  .btn-accent:focus-visible {
    outline: 2px solid var(--color-danger);
    outline-offset: 2px;
  }
  .btn-accent:active {
    transform: scale(0.98);
  }
  .risk-note {
    font-size: 12px;
    color: rgba(245,242,236,0.55);
    margin-top: 14px;
  }
  /* ===== Footer ===== */
  .site-footer {
    background: var(--color-primary);
    border-top: 4px solid var(--color-accent);
    padding: 50px 0 0;
    color: var(--color-text-light);
  }
  .footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(245,242,236,0.1);
  }
  .footer-brand .logo {
    color: var(--color-text-light);
    margin-bottom: 14px;
  }
  .footer-brand .logo-mark {
    background: var(--color-accent);
    color: var(--color-text-light);
  }
  .footer-brand p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 0;
  }
  .footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 14px;
  }
  .footer-col a {
    display: block;
    font-size: 14px;
    color: var(--color-text-muted);
    padding: 5px 0;
    transition: color var(--transition-normal);
  }
  .footer-col a:hover {
    color: var(--color-accent);
  }
  .footer-bottom {
    padding: 20px 0;
    text-align: center;
  }
  .footer-bottom p {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
  }
  /* ===== Responsive ===== */
  @media (max-width: 1023px) {
    .content-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .steps-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .detail-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }
    .footer-main {
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
  }
  @media (max-width: 767px) {
    .nav-desktop {
      display: none;
    }
    .nav-toggle {
      display: flex;
    }
    .mobile-nav {
      display: block;
    }
    .section {
      padding: 40px 0;
    }
    .category-hero {
      padding: 28px 0 32px;
    }
    .content-grid {
      grid-template-columns: 1fr;
    }
    .steps-grid {
      grid-template-columns: 1fr;
    }
    .footer-main {
      grid-template-columns: 1fr;
      gap: 20px;
    }
    .cta-inner {
      flex-direction: column;
      text-align: center;
      align-items: center;
    }
    .subtopics {
      flex-wrap: nowrap;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
      padding-bottom: 6px;
    }
    .subtopic-pill {
      flex-shrink: 0;
    }
    .container {
      padding: 0 18px;
    }
  }
  @media (max-width: 520px) {
    .header-inner {
      height: 64px;
    }
    .logo {
      font-size: 16px;
      gap: 8px;
    }
    .logo-mark {
      width: 32px;
      height: 32px;
      font-size: 15px;
    }
    .category-hero h1 {
      font-size: 22px;
    }
    .section-head h2 {
      font-size: 20px;
    }
    .detail-content h3 {
      font-size: 19px;
    }
    .content-card h3 {
      font-size: 16px;
    }
    .cta-text h2 {
      font-size: 20px;
    }
  }