/* roulang page: index */
:root {
  --color-bg: #10131A;
  --color-surface: #181C26;
  --color-surface-2: #222838;
  --color-border: #2A3040;
  --color-main: #C9A96E;
  --color-main-dark: #A78746;
  --color-main-light: #E2C98F;
  --color-accent: #52E5C6;
  --color-text: #EAECF0;
  --color-text-secondary: #9AA3B5;
  --color-danger: #E56A6A;
  --color-footer-bg: #0C0F14;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-banner: 16px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.45), 0 0 12px rgba(201,169,110,0.12);
  --transition-fast: 200ms ease-out;
  --transition-slow: 300ms ease-out;
  --gradient-gold: linear-gradient(135deg, #C9A96E 0%, #8C6A2F 100%);
  --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-num: 'Inter', 'DIN Alternate', 'Roboto', sans-serif;
  --font-mono: 'DIN Alternate', 'Roboto Mono', 'Consolas', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--color-main-light);
}

button {
  font-family: var(--font-cn);
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input {
  font-family: var(--font-cn);
  border: none;
  outline: none;
  background: none;
  color: var(--color-text);
}

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

.section {
  padding: 88px 0;
}

.section-head {
  margin-bottom: 52px;
  max-width: 720px;
}

.section-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  letter-spacing: 0.02em;
  line-height: 1;
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-main-light);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--color-main);
  color: #10131A;
  border-color: var(--color-main);
}

.btn-primary:hover {
  background: var(--color-main-light);
  border-color: var(--color-main-light);
  color: #10131A;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201,169,110,0.3);
}

.btn-primary:active {
  transform: translateY(0);
  background: var(--color-main-dark);
  border-color: var(--color-main-dark);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border-color: var(--color-main);
  color: var(--color-main);
}

.btn-outline:hover {
  background: rgba(201,169,110,0.12);
  border-color: var(--color-main-light);
  color: var(--color-main-light);
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: translateY(0);
  background: rgba(201,169,110,0.2);
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(234,236,240,0.6);
  color: var(--color-text);
}

.btn-outline-light:hover {
  background: rgba(234,236,240,0.1);
  border-color: var(--color-text);
  color: var(--color-text);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-dark {
  background: #10131A;
  color: var(--color-main-light);
  border-color: #10131A;
}

.btn-dark:hover {
  background: #181C26;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

/* ===== Header & Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(16,19,26,0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header.scrolled {
  background: #10131A;
  border-bottom-color: rgba(201,169,110,0.5);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.logo {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  white-space: nowrap;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.logo:hover {
  color: var(--color-main-light);
}

.logo .logo-accent {
  color: var(--color-main);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: 6px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
  background: rgba(255,255,255,0.04);
}

.nav-link.active {
  color: var(--color-main);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--color-main);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--color-border);
  padding: 8px 9px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.hamburger:hover {
  border-color: var(--color-main);
}

.hamburger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

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

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

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

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(16,19,26,0.6) 0%, rgba(16,19,26,0.92) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  animation: heroFadeUp 0.6s ease-out forwards;
}

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(201,169,110,0.15);
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-main-light);
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(82,229,198,0.8);
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
  font-size: 52px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
  max-width: 600px;
}

.hero-countdown {
  margin-bottom: 40px;
}

.countdown-label {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

.countdown-timer {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 88px;
}

.countdown-num {
  font-family: var(--font-mono);
  font-size: 62px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
  text-shadow: 0 0 20px rgba(82,229,198,0.25);
  transition: transform var(--transition-fast);
  font-variant-numeric: tabular-nums;
}

.countdown-num.tick {
  transform: scale(1.02);
}

.countdown-unit {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.countdown-sep {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 300;
  color: var(--color-text-secondary);
  line-height: 1;
  padding-top: 2px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== Timeline ===== */
.highlight-section {
  background: var(--color-bg);
  position: relative;
}

.timeline {
  position: relative;
  max-width: 760px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 21px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-main), rgba(201,169,110,0.2));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  display: flex;
  gap: 36px;
  padding-bottom: 52px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-main);
  z-index: 1;
  box-shadow: 0 0 0 4px rgba(201,169,110,0.12);
}

.timeline-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-main);
  line-height: 1.4;
  min-width: 48px;
  text-align: right;
  padding-left: 52px;
}

.timeline-content {
  flex: 1;
  padding-top: 2px;
}

.timeline-content h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
  max-width: 560px;
}

.timeline-time {
  font-size: 13px;
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.timeline-time::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

/* ===== Subscribe ===== */
.subscribe-section {
  background: linear-gradient(to bottom, var(--color-bg) 0%, #0D1016 100%);
}

.subscribe-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-banner);
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.subscribe-box:hover {
  border-color: rgba(201,169,110,0.4);
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
}

.subscribe-box h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

.subscribe-box > p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.subscribe-form {
  display: flex;
  gap: 12px;
  width: 100%;
  max-width: 540px;
  margin-bottom: 16px;
}

.form-input {
  flex: 1;
  padding: 14px 16px;
  background: #10131A;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  font-size: 15px;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder {
  color: var(--color-text-secondary);
}

.form-input:focus {
  border-color: var(--color-main);
  box-shadow: 0 0 0 3px rgba(201,169,110,0.15);
  outline: none;
}

.form-note {
  font-size: 13px;
  color: var(--color-text-secondary);
  opacity: 0.7;
}

/* ===== Entry Cards ===== */
.entry-section {
  background: var(--color-bg);
}

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

.entry-card {
  position: relative;
  height: 320px;
  border-radius: var(--radius-banner);
  overflow: hidden;
  display: block;
  text-decoration: none;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.entry-card:hover {
  border-color: rgba(201,169,110,0.5);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.entry-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-slow);
}

.entry-card:hover .entry-card-bg {
  transform: scale(1.05);
}

.entry-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(16,19,26,0.92) 0%, rgba(16,19,26,0.35) 55%, rgba(16,19,26,0.15) 100%);
}

.entry-card-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px;
  z-index: 2;
}

.entry-card-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.entry-card-body p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.entry-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-main);
  color: #10131A;
  font-size: 18px;
  font-weight: 600;
  transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.entry-card:hover .entry-arrow {
  transform: translateX(4px);
  background: var(--color-main-light);
  box-shadow: 0 0 16px rgba(201,169,110,0.4);
}

/* ===== Latest News (CMS) ===== */
.latest-section {
  background: #0D1016;
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.news-item:hover {
  border-color: var(--color-main);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.news-link {
  display: block;
  padding: 28px;
  text-decoration: none;
  color: inherit;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.news-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: rgba(201,169,110,0.15);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-main-light);
}

.news-time {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 10px;
  transition: color var(--transition-fast);
}

.news-link:hover .news-title {
  color: var(--color-main-light);
}

.news-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-main);
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.news-link:hover .news-more {
  gap: 10px;
  color: var(--color-main-light);
}

.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 72px 24px;
  text-align: center;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
}

.empty-state svg {
  width: 56px;
  height: 56px;
  stroke: var(--color-text-secondary);
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* ===== Stats ===== */
.stats-section {
  background: var(--color-bg);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.stat-item:hover {
  border-color: rgba(201,169,110,0.4);
  transform: translateY(-3px);
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  color: var(--color-main);
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ===== FAQ ===== */
.faq-section {
  background: #0D1016;
}

.faq-list {
  max-width: 780px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  transition: border-color var(--transition-fast);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-item:hover {
  border-color: rgba(201,169,110,0.3);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 24px 4px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  background: transparent;
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

.faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  font-size: 18px;
  font-weight: 400;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  border-color: var(--color-main);
  color: var(--color-main);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer-inner {
  padding: 0 4px 24px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 0;
}

.cta-box {
  position: relative;
  border-radius: var(--radius-banner);
  overflow: hidden;
  padding: 72px 60px;
  background: linear-gradient(135deg, #C9A96E 0%, #8C6A2F 100%);
  text-align: center;
  border: 1px solid rgba(201,169,110,0.5);
  box-shadow: 0 12px 40px rgba(201,169,110,0.2);
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 700;
  color: #10131A;
  line-height: 1.25;
  margin-bottom: 12px;
}

.cta-box p {
  font-size: 16px;
  color: rgba(16,19,26,0.75);
  margin-bottom: 36px;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--color-footer-bg);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 0;
  margin-top: 88px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}

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

.footer-logo {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-logo:hover {
  color: var(--color-main-light);
}

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

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}

.footer-col a {
  display: block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 28px 0;
  font-size: 13px;
  color: #6B7486;
}

.footer-bottom p {
  margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .hero-title {
    font-size: 44px;
  }
  
  .countdown-num {
    font-size: 52px;
  }
  
  .entry-grid {
    gap: 20px;
  }
}

@media (max-width: 991px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #10131A;
    border-bottom: 1px solid rgba(201,169,110,0.3);
    padding: 12px 24px 20px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.4);
  }
  
  .main-nav.open {
    display: flex;
  }
  
  .nav-link {
    padding: 14px 12px;
    font-size: 16px;
    border-radius: 8px;
    border-bottom: 1px solid rgba(42,48,64,0.4);
  }
  
  .nav-link:last-child {
    border-bottom: none;
  }
  
  .nav-link.active::after {
    display: none;
  }
  
  .nav-link.active {
    background: rgba(201,169,110,0.1);
    color: var(--color-main-light);
  }
  
  .hamburger {
    display: flex;
  }
  
  .header-actions .btn-sm {
    display: none;
  }
  
  .entry-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .entry-card {
    height: 260px;
  }
  
  .news-list {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .stat-item {
    flex-direction: row;
    justify-content: center;
    gap: 16px;
    padding: 28px 24px;
  }
  
  .stat-num {
    font-size: 34px;
    margin-bottom: 0;
  }
  
  .footer-top {
    flex-direction: column;
    gap: 40px;
  }
  
  .footer-links {
    gap: 40px;
  }
  
  .subscribe-box {
    padding: 40px 28px;
  }
  
  .subscribe-form {
    flex-direction: column;
  }
  
  .form-input,
  .subscribe-form .btn {
    width: 100%;
    flex: none;
  }
  
  .cta-box {
    padding: 48px 28px;
  }
  
  .hero {
    padding: 120px 0 60px;
  }
  
  .section {
    padding: 64px 0;
  }
  
  .section-title {
    font-size: 28px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 15px;
  }
  
  .hero-tag {
    font-size: 11px;
    padding: 5px 12px;
  }
  
  .countdown-num {
    font-size: 44px;
  }
  
  .countdown-item {
    min-width: 64px;
  }
  
  .countdown-sep {
    font-size: 36px;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .timeline-item {
    gap: 16px;
    padding-bottom: 44px;
  }
  
  .timeline-num {
    font-size: 22px;
    min-width: 36px;
    padding-left: 40px;
  }
  
  .timeline::before {
    left: 17px;
  }
  
  .timeline-item::before {
    left: 10px;
    width: 14px;
    height: 14px;
  }
  
  .timeline-content h3 {
    font-size: 18px;
  }
  
  .timeline-content p {
    font-size: 14px;
  }
  
  .subscribe-box {
    padding: 32px 20px;
  }
  
  .subscribe-box h2 {
    font-size: 24px;
  }
  
  .news-link {
    padding: 22px;
  }
  
  .news-title {
    font-size: 16px;
  }
  
  .entry-card {
    height: 220px;
  }
  
  .entry-card-body {
    padding: 20px;
  }
  
  .cta-box h2 {
    font-size: 24px;
  }
  
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .cta-actions .btn {
    width: 100%;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .section {
    padding: 52px 0;
  }
  
  .section-head {
    margin-bottom: 36px;
  }
  
  .section-title {
    font-size: 26px;
  }
  
  .faq-question {
    font-size: 15px;
    padding: 20px 2px;
  }
}

@media (max-width: 380px) {
  .logo {
    font-size: 15px;
  }
  
  .countdown-timer {
    gap: 8px;
  }
  
  .countdown-item {
    min-width: 52px;
  }
  
  .countdown-num {
    font-size: 38px;
  }
  
  .countdown-unit {
    font-size: 11px;
  }
}

/* roulang page: category1 */
/* ============================================================
   Design Variables
============================================================ */
:root {
  --color-bg: #10131A;
  --color-surface: #181C26;
  --color-surface-2: #222838;
  --color-border: #2A3040;
  --color-main: #C9A96E;
  --color-main-dark: #A78746;
  --color-main-light: #E2C98F;
  --color-accent: #52E5C6;
  --color-text: #EAECF0;
  --color-text-secondary: #9AA3B5;
  --color-danger: #E56A6A;
  --color-footer-bg: #0C0F14;

  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-img: 16px;
  --radius-badge: 4px;

  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.45);
  --shadow-main: 0 0 12px rgba(201, 169, 110, 0.25);
  --shadow-input: 0 0 0 3px rgba(201, 169, 110, 0.15);

  --transition: 200ms ease-out;
  --container-width: 1200px;
  --padding-x: 24px;
  --section-space: 90px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

input {
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

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

.section {
  padding: var(--section-space) 0;
}

/* ============================================================
   Typography
============================================================ */
h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 {
  font-size: 46px;
}

h2 {
  font-size: 32px;
  margin-bottom: 16px;
}

h3 {
  font-size: 20px;
  font-weight: 600;
}

p {
  line-height: 1.7;
}

.section-eyebrow {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-main);
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* ============================================================
   Buttons
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-main);
  color: #10131A;
}

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

.btn-primary:active {
  transform: translateY(0);
  background: var(--color-main-dark);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-main);
  color: var(--color-main);
}

.btn-outline:hover {
  background: rgba(201, 169, 110, 0.12);
  border-color: var(--color-main-light);
  color: var(--color-main-light);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 3px;
}

/* ============================================================
   Header / Navigation
============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(16, 19, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.site-header.scrolled {
  background: #10131A;
  border-bottom-color: var(--color-main);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}

.site-logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  white-space: nowrap;
  transition: color var(--transition);
}

.site-logo:hover {
  color: var(--color-main-light);
}

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

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--color-main);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}

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

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

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

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 22px;
  border: 1px solid var(--color-main);
  border-radius: var(--radius-btn);
  color: var(--color-main);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.header-cta:hover {
  background: rgba(201, 169, 110, 0.12);
  border-color: var(--color-main-light);
  color: var(--color-main-light);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--color-border);
  align-items: center;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.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);
}

/* ============================================================
   Page Hero
============================================================ */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.page-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 19, 26, 0.72) 0%, rgba(16, 19, 26, 0.9) 100%);
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.breadcrumb span {
  color: var(--color-main);
}

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

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

.page-hero h1 {
  font-size: 50px;
  margin-bottom: 18px;
  letter-spacing: 0.03em;
  line-height: 1.15;
}

.page-hero .lead {
  max-width: 620px;
  font-size: 17px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: var(--radius-badge);
  background: rgba(201, 169, 110, 0.15);
  color: var(--color-main-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ============================================================
   Split Layout (Asymmetric Two Columns)
============================================================ */
.split-layout {
  display: grid;
  grid-template-columns: 58fr 42fr;
  gap: 56px;
  align-items: start;
}

.split-main h2 {
  margin-bottom: 16px;
}

.split-main p {
  color: var(--color-text-secondary);
  margin-bottom: 18px;
}

.image-frame {
  border-radius: var(--radius-img);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

.image-frame img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform 0.4s ease-out;
}

.image-frame:hover img {
  transform: scale(1.03);
}

.split-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

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

.info-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.info-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.side-note {
  background: rgba(201, 169, 110, 0.08);
  border: 1px solid rgba(201, 169, 110, 0.25);
  border-radius: var(--radius-card);
  padding: 22px 24px;
}

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

/* ============================================================
   Section Head
============================================================ */
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head p {
  color: var(--color-text-secondary);
  margin-top: 8px;
}

/* ============================================================
   Entry Table
============================================================ */
.entry-table-section {
  background: rgba(24, 28, 38, 0.4);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.entry-table-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--color-surface);
}

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

.entry-table th {
  background: var(--color-surface-2);
  padding: 16px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-main-light);
  text-align: left;
  letter-spacing: 0.04em;
}

.entry-table td {
  padding: 18px 24px;
  font-size: 15px;
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border);
}

.entry-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* ============================================================
   Steps Section
============================================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  transition: all var(--transition);
}

.step-item:hover {
  border-color: var(--color-main);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.step-num {
  display: inline-block;
  font-family: 'Inter', 'DIN Alternate', 'Roboto', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.step-item h3 {
  margin-bottom: 10px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ============================================================
   Notes Section
============================================================ */
.notes-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.notes-text h2 {
  margin-bottom: 20px;
}

.notes-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.notes-list li {
  position: relative;
  padding-left: 26px;
  color: var(--color-text-secondary);
}

.notes-list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--color-main);
  font-size: 12px;
}

.notes-image .image-frame img {
  height: 340px;
}

/* ============================================================
   FAQ Section
============================================================ */
.faq-section {
  background: rgba(24, 28, 38, 0.4);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: color var(--transition);
  user-select: none;
}

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

.faq-icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-main);
  transition: transform var(--transition), opacity var(--transition);
}

.faq-icon::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.faq-icon::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.faq-item.open .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

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

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 24px 22px 8px;
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* ============================================================
   CTA Section
============================================================ */
.cta-section {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  text-align: center;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.cta-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 19, 26, 0.82) 0%, rgba(16, 19, 26, 0.92) 100%);
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-section h2 {
  font-size: 36px;
  margin-bottom: 14px;
}

.cta-section p {
  color: var(--color-text-secondary);
  font-size: 17px;
  margin-bottom: 32px;
}

/* ============================================================
   Footer
============================================================ */
.site-footer {
  background: var(--color-footer-bg);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.footer-logo {
  display: inline-block;
  font-size: 19px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  transition: color var(--transition);
}

.footer-logo:hover {
  color: var(--color-main-light);
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 12px;
}

.footer-links {
  display: flex;
  justify-content: space-between;
  gap: 40px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 5px 0;
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: #6B7486;
}

/* ============================================================
   Responsive
============================================================ */
@media (max-width: 1024px) {
  :root {
    --padding-x: 20px;
    --section-space: 70px;
  }

  h1 {
    font-size: 40px;
  }

  .page-hero h1 {
    font-size: 40px;
  }

  .split-layout {
    gap: 40px;
  }

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

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

@media (max-width: 767px) {
  :root {
    --padding-x: 16px;
    --section-space: 56px;
  }

  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 26px;
  }

  .header-inner {
    height: 62px;
  }

  .site-logo {
    font-size: 17px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 62px;
    left: 0;
    right: 0;
    background: #10131A;
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 32px;
    gap: 4px;
    border-bottom: 1px solid var(--color-main);
    transform: translateY(-110%);
    transition: transform 0.3s ease-out;
    z-index: 999;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .nav-link {
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-link::after {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .page-hero {
    padding: 120px 0 56px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero .lead {
    font-size: 15px;
  }

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

  .image-frame img {
    height: 220px;
  }

  .entry-table th,
  .entry-table td {
    padding: 14px 16px;
    font-size: 13px;
  }

  .entry-table th:last-child,
  .entry-table td:last-child {
    display: none;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step-item {
    padding: 24px 20px;
  }

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

  .notes-image .image-frame img {
    height: 220px;
  }

  .cta-section {
    padding: 64px 0;
  }

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

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

  .footer-links {
    flex-direction: column;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

@media (max-width: 520px) {
  .page-hero h1 {
    font-size: 28px;
  }

  .hero-tags {
    gap: 6px;
  }

  .tag {
    font-size: 12px;
    padding: 4px 10px;
  }

  .btn-lg {
    padding: 14px 32px;
    font-size: 15px;
  }

  .entry-table th:nth-child(2),
  .entry-table td:nth-child(2) {
    display: none;
  }

  .info-card {
    padding: 20px;
  }

  .split-side {
    gap: 14px;
  }
}

/* roulang page: category2 */
:root {
  --color-bg: #10131A;
  --color-surface: #181C26;
  --color-surface-2: #222838;
  --color-border: #2A3040;
  --color-main: #C9A96E;
  --color-main-dark: #A78746;
  --color-main-light: #E2C98F;
  --color-accent: #52E5C6;
  --color-text: #EAECF0;
  --color-text-secondary: #9AA3B5;
  --color-danger: #E56A6A;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.45);
  --glow-gold: 0 0 12px rgba(201,169,110,0.12);
  --transition-base: 200ms ease-out;
  --container-width: 1200px;
  --space-section: 90px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--color-main-light);
}

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

button, input {
  font-family: inherit;
  font-size: inherit;
}

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

/* ===== 导航 ===== */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(16,19,26,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background 300ms ease, border-color 300ms ease;
}

.main-nav.scrolled {
  background: #10131A;
  border-bottom-color: var(--color-main);
}

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

.nav-logo {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  white-space: nowrap;
}

.nav-logo span {
  color: var(--color-main);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--color-main-light);
  background: rgba(201,169,110,0.08);
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--color-main);
  border-radius: 2px;
}

.nav-cta {
  display: inline-block;
  padding: 10px 22px;
  background: transparent;
  border: 1px solid var(--color-main);
  border-radius: var(--radius-sm);
  color: var(--color-main);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition-base);
}

.nav-cta:hover {
  background: rgba(201,169,110,0.12);
  border-color: var(--color-main-light);
  color: var(--color-main-light);
}

.nav-cta:active {
  background: rgba(201,169,110,0.2);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1100;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: all 300ms ease;
  border-radius: 2px;
}

.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);
}

/* ===== Hero区间 ===== */
.category-hero {
  position: relative;
  padding: 180px 0 110px;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
}

.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16,19,26,0.55) 0%, rgba(16,19,26,0.82) 70%, rgba(16,19,26,1) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(201,169,110,0.15);
  border: 1px solid rgba(201,169,110,0.35);
  color: var(--color-main-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: var(--radius-xs);
  margin-bottom: 20px;
}

.category-hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-bottom: 20px;
}

.category-hero .hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
}

.hero-meta-row {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.hero-meta-item .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(82,229,198,0.5);
}

/* ===== 图文时间线区 ===== */
.timeline-section {
  padding: var(--space-section) 0;
  background: var(--color-bg);
}

.section-head {
  margin-bottom: 56px;
  max-width: 720px;
}

.section-head .sec-tag {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-main);
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

.timeline-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: start;
}

.timeline-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  min-height: 420px;
}

.timeline-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.timeline-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, transparent 40%, rgba(16,19,26,0.72) 100%);
}

.timeline-list {
  position: relative;
  padding-left: 32px;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-main) 0%, rgba(201,169,110,0.15) 100%);
}

.timeline-item {
  position: relative;
  padding: 0 0 44px 32px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-main);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-main);
}

.timeline-item .timeline-num {
  font-family: 'Inter', 'DIN Alternate', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-main);
  margin-bottom: 8px;
}

.timeline-item h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.timeline-item p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}

.timeline-item .timeline-time {
  font-size: 13px;
  color: #6B7486;
}

/* ===== 数据指标区 ===== */
.stats-section {
  padding: 0 0 var(--space-section);
}

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

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.stat-card:hover {
  border-color: var(--color-main);
  box-shadow: var(--glow-gold);
}

.stat-num {
  font-family: 'Inter', 'DIN Alternate', sans-serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--color-main);
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ===== 表格信息区 ===== */
.table-section {
  padding: 0 0 var(--space-section);
}

.table-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.table-card .table-head {
  padding: 28px 32px;
  border-bottom: 1px solid var(--color-border);
}

.table-card .table-head h3 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
}

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

.info-table th {
  background: var(--color-surface-2);
  padding: 16px 32px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-main-light);
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--color-border);
}

.info-table td {
  padding: 20px 32px;
  font-size: 15px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

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

.info-table td .badge {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(201,169,110,0.15);
  color: var(--color-main-light);
  border-radius: var(--radius-xs);
  font-size: 13px;
  font-weight: 600;
  margin-right: 6px;
  margin-bottom: 4px;
}

.info-table td .desc {
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* ===== 看点卡片区 ===== */
.feature-section {
  padding: 0 0 var(--space-section);
}

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

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

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

.feature-card .card-img {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.feature-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.feature-card:hover .card-img img {
  transform: scale(1.04);
}

.feature-card .card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(16,19,26,0.68) 100%);
}

.feature-card .card-body {
  padding: 26px 26px 30px;
}

.feature-card .card-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.feature-card .card-body p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-main);
  transition: gap var(--transition-base);
}

.card-link:hover {
  color: var(--color-main-light);
  gap: 10px;
}

.card-link .arrow {
  display: inline-block;
  transition: transform var(--transition-base);
}

.card-link:hover .arrow {
  transform: translateX(4px);
}

/* ===== FAQ区 ===== */
.faq-section {
  padding: 0 0 var(--space-section);
}

.faq-wrap {
  max-width: 860px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 8px;
  cursor: pointer;
  transition: color var(--transition-base);
}

.faq-question h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition-base);
}

.faq-question:hover h3 {
  color: var(--color-main);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 20px;
  font-weight: 300;
  transition: all 300ms ease;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease;
}

.faq-answer-inner {
  padding: 0 8px 26px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* ===== CTA区 ===== */
.cta-section {
  padding: 0 0 var(--space-section);
}

.cta-box {
  position: relative;
  background: linear-gradient(135deg, #C9A96E 0%, #8C6A2F 100%);
  border-radius: var(--radius-lg);
  padding: 64px 56px;
  overflow: hidden;
  text-align: center;
}

.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.15;
  mix-blend-mode: overlay;
}

.cta-box .cta-inner {
  position: relative;
  z-index: 2;
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 700;
  color: #10131A;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  color: rgba(16,19,26,0.75);
  margin-bottom: 32px;
}

.btn-cta-dark {
  display: inline-block;
  padding: 16px 42px;
  background: #10131A;
  color: var(--color-main-light);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.btn-cta-dark:hover {
  background: #1A1F2B;
  color: var(--color-main-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.btn-cta-dark:active {
  transform: translateY(0);
}

/* ===== 分栏CTA小卡片 ===== */
.cta-small-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.cta-small-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.cta-small-card:hover {
  border-color: var(--color-main);
  box-shadow: var(--glow-gold);
}

.cta-small-card .info h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.cta-small-card .info span {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.cta-small-card .go-link {
  font-size: 26px;
  color: var(--color-main);
  transition: transform var(--transition-base);
}

.cta-small-card:hover .go-link {
  transform: translateX(6px);
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0C0F14;
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  display: inline-block;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 320px;
}

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

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  line-height: 2.2;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

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

.footer-bottom {
  border-top: 1px solid rgba(42,48,64,0.6);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 13px;
  color: #6B7486;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .timeline-wrap {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

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

@media (max-width: 767px) {
  .nav-inner {
    height: 64px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 64px;
    right: 0;
    width: 100%;
    height: calc(100vh - 64px);
    background: var(--color-bg);
    flex-direction: column;
    justify-content: flex-start;
    padding: 32px 24px;
    gap: 12px;
    transform: translateX(100%);
    transition: transform 300ms ease;
    overflow-y: auto;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-link {
    width: 100%;
    font-size: 17px;
    padding: 14px 12px;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
    padding: 14px 12px;
    margin-top: 12px;
  }

  .category-hero {
    padding: 140px 0 70px;
  }

  .category-hero h1 {
    font-size: 34px;
  }

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

  .hero-meta-row {
    gap: 18px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 22px 18px;
  }

  .stat-num {
    font-size: 32px;
  }

  .info-table th,
  .info-table td {
    padding: 14px 16px;
  }

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

  .cta-box {
    padding: 40px 24px;
  }

  .cta-box h2 {
    font-size: 26px;
  }

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

  .footer-links {
    grid-template-columns: 1fr 1fr;
  }

  .cta-small-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .info-table {
    display: block;
    overflow-x: auto;
  }

  .timeline-list {
    padding-left: 24px;
  }
}

/* roulang page: article */
:root {
    --color-bg: #10131A;
    --color-surface: #181C26;
    --color-surface-2: #222838;
    --color-border: #2A3040;
    --color-main: #C9A96E;
    --color-main-dark: #A78746;
    --color-main-light: #E2C98F;
    --color-accent: #52E5C6;
    --color-text: #EAECF0;
    --color-secondary: #9AA3B5;
    --color-danger: #E56A6A;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 4px;
    --shadow: 0 2px 8px rgba(0,0,0,0.25);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.45);
    --glow: 0 0 12px rgba(201,169,110,0.25);
    --ease: all 0.25s ease-out;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif; background: var(--color-bg); color: var(--color-text); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: var(--ease); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; }

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

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(16,19,26,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled { background: #10131A; box-shadow: 0 1px 0 var(--color-main); }
.header-inner { position: relative; display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { font-size: 19px; font-weight: 700; letter-spacing: 0.02em; white-space: nowrap; color: var(--color-main-light); transition: color 0.25s; }
.logo:hover { color: var(--color-main); }

.main-nav { display: flex; align-items: center; gap: 28px; }
.nav-link { position: relative; font-size: 14px; font-weight: 500; color: var(--color-secondary); padding: 8px 0; letter-spacing: 0.02em; transition: var(--ease); }
.nav-link:hover { color: var(--color-main-light); }
.nav-link.active { color: var(--color-main); }
.nav-link.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--color-main), transparent); }

.header-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--color-main); color: #10131A; font-weight: 600; font-size: 14px; padding: 10px 22px; border-radius: var(--radius-sm); transition: var(--ease); }
.header-cta:hover { background: var(--color-main-light); transform: translateY(-2px); box-shadow: var(--glow); }
.header-cta:active { transform: translateY(0); background: var(--color-main-dark); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; z-index: 1100; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); margin: 5px auto; border-radius: 2px; transition: var(--ease); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.article-page { padding-top: 72px; }

.article-hero {
    padding: 76px 0 52px;
    background: linear-gradient(180deg, rgba(16,19,26,0.88) 0%, rgba(16,19,26,0.97) 100%), url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
    border-bottom: 1px solid var(--color-border);
    position: relative;
}
.article-hero-inner { max-width: 920px; margin: 0 auto; }

.hero-eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; color: var(--color-main); }
.hero-eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--color-main); }

.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--color-secondary); margin-bottom: 24px; }
.breadcrumb a { color: var(--color-secondary); }
.breadcrumb a:hover { color: var(--color-main-light); }
.breadcrumb .sep { color: var(--color-border); }
.breadcrumb .current { color: var(--color-main); }

.article-title { font-size: 42px; font-weight: 700; line-height: 1.25; letter-spacing: 0.02em; margin: 20px 0 24px; color: var(--color-text); }

.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; font-size: 14px; color: var(--color-secondary); }
.meta-badge { background: rgba(201,169,110,0.15); color: var(--color-main-light); padding: 4px 12px; border-radius: var(--radius-xs); font-weight: 600; font-size: 13px; }
.meta-divider { width: 4px; height: 4px; border-radius: 50%; background: var(--color-border); }

.article-wrap { max-width: 920px; margin: 0 auto; padding: 56px 0 24px; }

.article-content { font-size: 16px; line-height: 1.9; color: var(--color-text); }
.article-content h2 { font-size: 28px; font-weight: 700; line-height: 1.35; margin: 44px 0 18px; color: var(--color-main-light); letter-spacing: 0.01em; }
.article-content h3 { font-size: 21px; font-weight: 600; margin: 32px 0 14px; color: var(--color-text); }
.article-content p { margin-bottom: 20px; }
.article-content a { color: var(--color-main); border-bottom: 1px solid transparent; }
.article-content a:hover { color: var(--color-main-light); border-bottom-color: var(--color-main); }
.article-content blockquote { margin: 28px 0; padding: 18px 24px; background: var(--color-surface); border-left: 3px solid var(--color-main); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--color-secondary); }
.article-content ul, .article-content ol { margin: 16px 0 24px; padding-left: 26px; }
.article-content li { margin-bottom: 10px; line-height: 1.8; }
.article-content img { display: block; max-width: 100%; height: auto; margin: 28px auto; border-radius: var(--radius); }
.article-content pre { background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 20px; overflow-x: auto; margin: 24px 0; font-size: 14px; line-height: 1.7; font-family: 'Inter', 'DIN Alternate', 'Roboto', monospace; }
.article-content code { font-family: 'Inter', 'Roboto', monospace; background: rgba(201,169,110,0.12); color: var(--color-main-light); padding: 2px 6px; border-radius: 4px; font-size: 14px; }
.article-content pre code { background: transparent; color: inherit; padding: 0; font-size: 14px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; background: var(--color-surface); border-radius: var(--radius-sm); overflow: hidden; }
.article-content th, .article-content td { padding: 12px 16px; border: 1px solid var(--color-border); font-size: 14px; text-align: left; }
.article-content th { background: var(--color-surface-2); color: var(--color-main-light); font-weight: 600; }

.article-labels { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding-top: 28px; margin-top: 40px; border-top: 1px solid var(--color-border); }
.article-labels .label { font-size: 14px; color: var(--color-secondary); margin-right: 6px; }
.tag { font-size: 13px; background: rgba(201,169,110,0.08); border: 1px solid var(--color-border); color: var(--color-secondary); padding: 6px 14px; border-radius: var(--radius-xs); transition: var(--ease); }
.tag:hover { border-color: var(--color-main); color: var(--color-main-light); }

.article-footer-nav { margin-top: 40px; padding-bottom: 24px; }
.article-back { display: inline-flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; color: var(--color-main); }
.article-back:hover { color: var(--color-main-light); }
.article-back .arr { transition: transform 0.25s ease; }
.article-back:hover .arr { transform: translateX(-4px); }

.section-related { margin-top: 56px; padding: 72px 0; border-top: 1px solid var(--color-border); background: var(--color-bg); }
.section-head { max-width: 920px; margin: 0 auto 40px; }
.section-head h2 { font-size: 30px; font-weight: 700; line-height: 1.3; margin-bottom: 10px; }
.section-head p { font-size: 15px; color: var(--color-secondary); }
.related-grid { max-width: 920px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.related-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; transition: var(--ease); }
.related-card:hover { border-color: var(--color-main); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.related-thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s ease; }
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-content { padding: 24px; }
.related-content h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--color-text); transition: color 0.25s; }
.related-card:hover .related-content h3 { color: var(--color-main-light); }
.related-content p { font-size: 14px; color: var(--color-secondary); line-height: 1.7; margin-bottom: 16px; }
.related-more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--color-main); }
.related-more .arr { transition: transform 0.25s ease; }
.related-card:hover .related-more .arr { transform: translateX(4px); }

.empty-state.empty-full { min-height: 60vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; text-align: center; padding: 80px 24px; }
.empty-title { font-size: 30px; font-weight: 700; color: var(--color-main-light); }
.empty-back { display: inline-flex; align-items: center; gap: 8px; background: var(--color-main); color: #10131A; font-weight: 600; padding: 12px 32px; border-radius: var(--radius-sm); transition: var(--ease); }
.empty-back:hover { background: var(--color-main-light); transform: translateY(-2px); box-shadow: var(--glow); }
.empty-back:active { transform: translateY(0); background: var(--color-main-dark); }

.site-footer { background: #0C0F14; border-top: 1px solid var(--color-border); padding: 64px 0 32px; }
.footer-top { display: grid; grid-template-columns: 1fr 2fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .footer-logo { font-size: 20px; font-weight: 700; color: var(--color-main-light); transition: color 0.25s; }
.footer-brand .footer-logo:hover { color: var(--color-main); }
.footer-brand p { margin-top: 12px; font-size: 14px; color: var(--color-secondary); max-width: 320px; line-height: 1.7; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.footer-col h4 { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 16px; letter-spacing: 0.04em; }
.footer-col a { display: block; font-size: 14px; color: var(--color-secondary); margin-bottom: 10px; transition: var(--ease); }
.footer-col a:hover { color: var(--color-main-light); padding-left: 4px; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.footer-bottom p { font-size: 13px; color: #6B7486; }

@media (max-width: 1023px) {
    .main-nav { gap: 20px; }
    .footer-top { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 767px) {
    .container { padding: 0 16px; }
    .header-inner { height: 64px; }
    .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        background: rgba(16,19,26,0.98);
        padding: 24px 20px 28px;
        border-bottom: 1px solid var(--color-main);
        box-shadow: var(--shadow-lg);
    }
    .main-nav.open { display: flex; }
    .nav-toggle { display: block; }
    .header-cta { display: none; }
    .nav-link { font-size: 16px; }

    .article-page { padding-top: 64px; }
    .article-hero { padding: 48px 0 32px; }
    .article-title { font-size: 28px; line-height: 1.3; margin-top: 14px; }
    .hero-eyebrow { font-size: 12px; }
    .breadcrumb { margin-bottom: 16px; }

    .article-wrap { padding: 40px 0 16px; }
    .article-content h2 { font-size: 23px; }
    .article-content h3 { font-size: 19px; }
    .article-content { font-size: 15px; }

    .section-related { padding: 48px 0; }
    .related-grid { grid-template-columns: 1fr; gap: 16px; }
    .section-head h2 { font-size: 24px; }
    .section-head p { font-size: 14px; }

    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .footer-links { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* roulang page: category3 */
:root{
  --color-bg:#10131A;
  --color-surface:#181C26;
  --color-surface-2:#222838;
  --color-border:#2A3040;
  --color-main:#C9A96E;
  --color-main-dark:#A78746;
  --color-main-light:#E2C98F;
  --color-accent:#52E5C6;
  --color-text:#EAECF0;
  --color-text-secondary:#9AA3B5;
  --color-danger:#E56A6A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --radius-xs:4px;
  --shadow-card:0 2px 8px rgba(0,0,0,0.25);
  --shadow-card-hover:0 8px 30px rgba(0,0,0,0.45);
  --shadow-gold:0 0 12px rgba(201,169,110,0.12);
  --shadow-gold-strong:0 0 20px rgba(201,169,110,0.25);
  --transition:all 0.25s ease-out;
  --container-max:1200px;
  --font-sans:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-num:'Inter','DIN Alternate','Roboto',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:var(--color-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:var(--transition);}
button,input{font-family:inherit;font-size:inherit;}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px;}

/* ===== Header & Nav ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(16,19,26,0.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:var(--transition);
}
.site-header.scrolled{
  background:#10131A;
  border-bottom:1px solid var(--color-main);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo{
  font-size:22px;
  font-weight:700;
  letter-spacing:0.02em;
  color:var(--color-main-light);
  white-space:nowrap;
  transition:var(--transition);
}
.logo:hover{color:var(--color-main);}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav .nav-link{
  display:inline-block;
  padding:10px 16px;
  font-size:15px;
  font-weight:500;
  color:var(--color-text-secondary);
  border-radius:var(--radius-sm);
  position:relative;
  transition:var(--transition);
}
.main-nav .nav-link:hover{
  color:var(--color-text);
  background:rgba(201,169,110,0.08);
}
.main-nav .nav-link.active{
  color:var(--color-main);
  font-weight:600;
}
.main-nav .nav-link.active::after{
  content:'';
  position:absolute;
  left:16px;right:16px;bottom:2px;
  height:2px;
  background:var(--color-main);
  border-radius:2px;
}
.nav-cta{
  display:inline-block;
  padding:9px 24px;
  font-size:14px;
  font-weight:600;
  color:var(--color-main);
  border:1px solid var(--color-main);
  border-radius:var(--radius-sm);
  background:transparent;
  transition:var(--transition);
  white-space:nowrap;
}
.nav-cta:hover{
  background:rgba(201,169,110,0.12);
  border-color:var(--color-main-light);
  color:var(--color-main-light);
  transform:translateY(-1px);
}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  background:none;border:1px solid var(--color-border);
  border-radius:var(--radius-sm);
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:var(--transition);
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  background:var(--color-text);
  border-radius:2px;
  transition:var(--transition);
}
.nav-toggle:hover{border-color:var(--color-main);}
.nav-toggle:hover span{background:var(--color-main);}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== Hero / Page Banner ===== */
.page-hero{
  position:relative;
  padding:100px 0 80px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(16,19,26,0.60) 0%, rgba(16,19,26,0.92) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-tag{
  display:inline-block;
  padding:5px 14px;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.08em;
  color:var(--color-main-light);
  background:rgba(201,169,110,0.15);
  border:1px solid rgba(201,169,110,0.3);
  border-radius:var(--radius-xs);
  margin-bottom:20px;
  text-transform:uppercase;
}
.page-hero h1{
  font-size:52px;
  font-weight:700;
  line-height:1.15;
  letter-spacing:0.02em;
  color:var(--color-text);
  margin-bottom:16px;
}
.page-hero .hero-sub{
  font-size:18px;
  color:var(--color-text-secondary);
  max-width:640px;
  line-height:1.7;
  margin-bottom:32px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-weight:600;
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:var(--transition);
  border:none;
  white-space:nowrap;
}
.btn-primary{
  background:var(--color-main);
  color:#10131A;
  padding:14px 32px;
  font-size:16px;
}
.btn-primary:hover{
  background:var(--color-main-light);
  transform:translateY(-2px);
  box-shadow:var(--shadow-gold-strong);
}
.btn-primary:active{
  transform:translateY(0);
  background:var(--color-main-dark);
}
.btn-outline{
  background:transparent;
  color:var(--color-main);
  border:1px solid var(--color-main);
  padding:14px 32px;
  font-size:16px;
}
.btn-outline:hover{
  background:rgba(201,169,110,0.12);
  border-color:var(--color-main-light);
  color:var(--color-main-light);
  transform:translateY(-2px);
}
.btn-outline:active{transform:translateY(0);}

/* ===== Breadcrumb ===== */
.breadcrumb{
  padding:20px 0 0;
  font-size:13px;
  color:var(--color-text-secondary);
}
.breadcrumb a{color:var(--color-text-secondary);}
.breadcrumb a:hover{color:var(--color-main);}
.breadcrumb .sep{margin:0 8px;color:#5A6478;}

/* ===== Section Common ===== */
.section{padding:90px 0;}
.section-alt{background:var(--color-surface);}
.section-header{
  margin-bottom:48px;
  max-width:760px;
}
.section-header .section-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.08em;
  color:var(--color-main);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-header h2{
  font-size:36px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:0.01em;
  color:var(--color-text);
  margin-bottom:16px;
}
.section-header p{
  font-size:16px;
  color:var(--color-text-secondary);
  line-height:1.7;
}

/* ===== About / Intro ===== */
.about-grid{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:64px;
  align-items:center;
}
.about-copy h3{
  font-size:24px;
  font-weight:600;
  line-height:1.4;
  color:var(--color-text);
  margin-bottom:20px;
}
.about-copy p{
  font-size:16px;
  color:var(--color-text-secondary);
  line-height:1.8;
  margin-bottom:16px;
}
.about-copy p:last-child{margin-bottom:0;}
.about-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.about-visual img{
  width:100%;
  height:340px;
  object-fit:cover;
  transition:transform 0.6s ease-out;
}
.about-visual:hover img{transform:scale(1.04);}
.about-visual .visual-caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:24px;
  background:linear-gradient(180deg, transparent, rgba(16,19,26,0.9));
  font-size:14px;
  color:var(--color-text);
}

/* ===== Timeline ===== */
.timeline-section{
  position:relative;
}
.timeline{
  position:relative;
  padding-left:0;
  margin:0;
  list-style:none;
}
.timeline::before{
  content:'';
  position:absolute;
  left:14px;
  top:0;
  bottom:0;
  width:2px;
  background:linear-gradient(180deg, var(--color-main) 0%, rgba(201,169,110,0.2) 100%);
}
.timeline-item{
  position:relative;
  padding-left:56px;
  padding-bottom:56px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:'';
  position:absolute;
  left:7px;
  top:6px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--color-bg);
  border:3px solid var(--color-main);
  box-shadow:0 0 0 4px rgba(201,169,110,0.15);
}
.timeline-item .time-num{
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  letter-spacing:0.05em;
  color:var(--color-main);
  margin-bottom:8px;
}
.timeline-item h3{
  font-size:22px;
  font-weight:600;
  line-height:1.4;
  color:var(--color-text);
  margin-bottom:10px;
}
.timeline-item p{
  font-size:15px;
  color:var(--color-text-secondary);
  line-height:1.7;
  max-width:620px;
}
.timeline-item .time-stamp{
  display:inline-block;
  margin-top:10px;
  font-size:13px;
  color:#6B7486;
  font-family:var(--font-num);
}

/* ===== Info Table ===== */
.info-table-wrap{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:40px;
  overflow-x:auto;
}
.info-table{
  width:100%;
  border-collapse:collapse;
  min-width:640px;
}
.info-table th{
  text-align:left;
  padding:16px 20px;
  font-size:14px;
  font-weight:600;
  color:var(--color-main-light);
  border-bottom:2px solid var(--color-main);
  letter-spacing:0.03em;
  white-space:nowrap;
}
.info-table td{
  padding:18px 20px;
  font-size:15px;
  color:var(--color-text);
  border-bottom:1px solid var(--color-border);
  line-height:1.6;
  vertical-align:top;
}
.info-table tr:last-child td{border-bottom:none;}
.info-table tr:hover td{
  background:rgba(201,169,110,0.04);
}
.info-table td:first-child{
  font-weight:600;
  color:var(--color-main-light);
  white-space:nowrap;
}
.info-table .table-note{
  font-size:13px;
  color:var(--color-text-secondary);
  display:block;
  margin-top:4px;
}

/* ===== News Cards ===== */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:var(--transition);
  display:flex;
  flex-direction:column;
}
.news-card:hover{
  border-color:var(--color-main);
  box-shadow:var(--shadow-card-hover), var(--shadow-gold);
  transform:translateY(-4px);
}
.news-card .card-img{
  position:relative;
  height:190px;
  overflow:hidden;
}
.news-card .card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.6s ease-out;
}
.news-card:hover .card-img img{transform:scale(1.05);}
.news-card .card-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, transparent 50%, rgba(16,19,26,0.6));
}
.news-card .card-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-badge{
  display:inline-block;
  align-self:flex-start;
  padding:4px 10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.05em;
  color:var(--color-main-light);
  background:rgba(201,169,110,0.15);
  border-radius:var(--radius-xs);
  margin-bottom:14px;
}
.news-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.45;
  color:var(--color-text);
  margin-bottom:12px;
}
.news-card p{
  font-size:14px;
  line-height:1.65;
  color:var(--color-text-secondary);
  margin-bottom:16px;
  flex:1;
}
.card-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:#6B7486;
  padding-top:14px;
  border-top:1px solid var(--color-border);
}
.card-meta .arrow-link{
  color:var(--color-main);
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-meta .arrow-link:hover{
  color:var(--color-main-light);
}
.card-meta .arrow-link:hover .arrow-icon{
  transform:translateX(4px);
}
.arrow-icon{
  display:inline-block;
  transition:transform 0.25s ease-out;
}

/* ===== FAQ ===== */
.faq-wrap{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  border-bottom:1px solid var(--color-border);
}
.faq-item:first-child{border-top:1px solid var(--color-border);}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:100%;
  padding:26px 0;
  background:none;
  border:none;
  cursor:pointer;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--color-text);
  transition:var(--transition);
}
.faq-question:hover{color:var(--color-main);}
.faq-question .plus-icon{
  position:relative;
  flex-shrink:0;
  width:20px;
  height:20px;
}
.faq-question .plus-icon::before,
.faq-question .plus-icon::after{
  content:'';
  position:absolute;
  background:var(--color-text);
  border-radius:1px;
  transition:var(--transition);
}
.faq-question .plus-icon::before{
  top:9px;left:0;right:0;
  height:2px;
}
.faq-question .plus-icon::after{
  left:9px;top:0;bottom:0;
  width:2px;
}
.faq-question:hover .plus-icon::before,
.faq-question:hover .plus-icon::after{
  background:var(--color-main);
}
.faq-question.open .plus-icon::before,
.faq-question.open .plus-icon::after{
  transform:rotate(45deg);
  background:var(--color-main);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.3s ease-out;
}
.faq-answer .answer-inner{
  padding:0 40px 26px 0;
  font-size:15px;
  line-height:1.75;
  color:var(--color-text-secondary);
}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  padding:90px 0;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:rgba(16,19,26,0.82);
}
.cta-section .container{
  position:relative;
  z-index:2;
  text-align:center;
}
.cta-section h2{
  font-size:34px;
  font-weight:700;
  line-height:1.3;
  color:var(--color-text);
  margin-bottom:16px;
}
.cta-section p{
  font-size:16px;
  color:var(--color-text-secondary);
  max-width:560px;
  margin:0 auto 32px;
  line-height:1.7;
}
.cta-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}

/* ===== Footer ===== */
.site-footer{
  background:#0C0F14;
  border-top:1px solid var(--color-border);
  padding:56px 0 0;
}
.footer-top{
  display:grid;
  grid-template-columns:1.2fr 2fr;
  gap:48px;
  padding-bottom:40px;
}
.footer-brand .footer-logo{
  font-size:20px;
  font-weight:700;
  color:var(--color-main-light);
  letter-spacing:0.02em;
  display:inline-block;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:14px;
  color:var(--color-text-secondary);
  line-height:1.7;
  max-width:340px;
}
.footer-links{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--color-text);
  margin-bottom:16px;
  letter-spacing:0.03em;
}
.footer-col a{
  display:block;
  padding:6px 0;
  font-size:14px;
  color:var(--color-text-secondary);
  transition:var(--transition);
}
.footer-col a:hover{color:var(--color-main);}
.footer-bottom{
  border-top:1px solid var(--color-border);
  padding:24px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{
  font-size:13px;
  color:#6B7486;
  line-height:1.5;
}

/* ===== Responsive ===== */
@media (max-width: 1199px){
  .container{padding:0 20px;}
  .header-inner{padding:0 16px;}
}
@media (max-width: 1023px){
  .about-grid{grid-template-columns:1fr;gap:40px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .page-hero h1{font-size:44px;}
  .section{padding:70px 0;}
}
@media (max-width: 767px){
  .header-inner{height:64px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    top:64px;
    left:0;right:0;
    background:var(--color-bg);
    border-bottom:1px solid var(--color-main);
    flex-direction:column;
    align-items:center;
    padding:24px 20px;
    gap:12px;
    transform:translateY(-120%);
    opacity:0;
    visibility:hidden;
    transition:var(--transition);
    z-index:999;
  }
  .main-nav.open{
    transform:translateY(0);
    opacity:1;
    visibility:visible;
  }
  .main-nav .nav-link{
    width:100%;
    text-align:center;
    padding:14px;
    font-size:16px;
  }
  .main-nav .nav-link.active::after{
    left:40%;right:40%;
  }
  .nav-cta{
    display:none;
  }
  .page-hero{padding:72px 0 56px;}
  .page-hero h1{font-size:34px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn{width:100%;}
  .section{padding:56px 0;}
  .section-header h2{font-size:28px;}
  .footer-top{grid-template-columns:1fr;gap:32px;}
  .footer-links{grid-template-columns:1fr;gap:24px;}
  .timeline-item{padding-left:48px;}
  .timeline::before{left:10px;}
  .timeline-item::before{
    left:3px;
    width:14px;height:14px;
  }
  .info-table-wrap{padding:24px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-section .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;}
  .card-grid{grid-template-columns:1fr;}
  .faq-question{font-size:15px;}
  .faq-answer .answer-inner{padding-right:0;}
  .hero-actions .btn{width:auto;flex:1;justify-content:center;}
}
@media (max-width: 480px){
  .page-hero h1{font-size:28px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .section-header h2{font-size:24px;}
  .about-visual img{height:220px;}
  .btn{padding:12px 20px;}
}

/* roulang page: category4 */
:root{
  --color-bg:#10131A;
  --color-surface:#181C26;
  --color-surface-2:#222838;
  --color-border:#2A3040;
  --color-main:#C9A96E;
  --color-main-dark:#A78746;
  --color-main-light:#E2C98F;
  --color-accent:#52E5C6;
  --color-text:#EAECF0;
  --color-text-secondary:#9AA3B5;
  --color-danger:#E56A6A;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-banner:16px;
  --radius-badge:4px;
  --shadow-card:0 2px 8px rgba(0,0,0,0.25);
  --shadow-hover:0 8px 30px rgba(0,0,0,0.45);
  --transition:0.25s ease-out;
  --max-width:1200px;
  --font-cn:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-num:'Inter','DIN Alternate','Roboto',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--color-bg);
  color:var(--color-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-head{margin-bottom:48px}
.section-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.08em;
  color:var(--color-main);
  background:rgba(201,169,110,0.12);
  padding:4px 12px;
  border-radius:var(--radius-badge);
  margin-bottom:12px;
}
.section-title{
  font-size:34px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:0.02em;
  color:var(--color-text);
}
.section-sub{
  font-size:16px;
  color:var(--color-text-secondary);
  margin-top:12px;
  max-width:640px;
}
.text-gold{color:var(--color-main)}
.text-accent{color:var(--color-accent)}

/* ===== Button ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:0.04em;
  transition:all var(--transition);
  line-height:1;
  border:1px solid transparent;
}
.btn-primary{
  background:var(--color-main);
  color:#10131A;
}
.btn-primary:hover{
  background:var(--color-main-light);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(201,169,110,0.25),0 0 12px rgba(201,169,110,0.18);
}
.btn-primary:active{
  transform:translateY(0);
  background:var(--color-main-dark);
}
.btn-ghost{
  background:transparent;
  border-color:var(--color-main);
  color:var(--color-main);
}
.btn-ghost:hover{
  background:rgba(201,169,110,0.12);
  border-color:var(--color-main-light);
  color:var(--color-main-light);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}
.btn-lg{padding:16px 40px;font-size:17px}
.btn:focus-visible{
  outline:3px solid rgba(201,169,110,0.35);
  outline-offset:2px;
}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(16,19,26,0.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background var(--transition),border-color var(--transition);
}
.site-header.scrolled{
  background:var(--color-bg);
  border-bottom-color:var(--color-main);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.site-logo{
  font-size:19px;
  font-weight:700;
  letter-spacing:0.03em;
  color:var(--color-main);
  white-space:nowrap;
  transition:color var(--transition);
}
.site-logo:hover{color:var(--color-main-light)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--color-text-secondary);
  padding:8px 14px;
  border-radius:6px;
  transition:color var(--transition),background var(--transition);
}
.nav-link:hover{color:var(--color-text);background:rgba(201,169,110,0.08)}
.nav-link.active{color:var(--color-main);font-weight:600}
.nav-link.active::after{
  content:'';
  position:absolute;
  left:14px;right:14px;bottom:-2px;
  height:2px;
  background:var(--color-main);
  border-radius:2px;
}
.header-cta{
  font-size:14px;
  font-weight:600;
  color:#10131A;
  background:var(--color-main);
  padding:10px 20px;
  border-radius:var(--radius-btn);
  transition:all var(--transition);
  white-space:nowrap;
}
.header-cta:hover{background:var(--color-main-light);transform:translateY(-1px);box-shadow:0 4px 16px rgba(201,169,110,0.25)}
.header-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:8px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  background:var(--color-surface);
  border:1px solid var(--color-border);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--color-text);
  border-radius:2px;
  transition:all 0.3s ease-out;
}
.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-menu{
  display:none;
  background:var(--color-bg);
  border-top:1px solid var(--color-border);
  padding:16px 24px 24px;
  flex-direction:column;
  gap:4px;
}
.mobile-menu.show{display:flex}
.mobile-menu .nav-link{
  padding:14px 12px;
  font-size:15px;
  border-radius:8px;
}
.mobile-menu .nav-link.active{background:rgba(201,169,110,0.1)}
.mobile-menu .header-cta{margin-top:12px;text-align:center}

/* ===== Page Hero ===== */
.page-hero{
  position:relative;
  padding:180px 0 100px;
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(16,19,26,0.55) 0%,rgba(16,19,26,0.88) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-badge{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:0.1em;
  color:var(--color-main-light);
  background:rgba(201,169,110,0.15);
  padding:6px 16px;
  border-radius:var(--radius-badge);
  margin-bottom:20px;
  border:1px solid rgba(201,169,110,0.3);
}
.page-hero h1{
  font-size:54px;
  font-weight:700;
  line-height:1.15;
  letter-spacing:0.02em;
  color:var(--color-text);
  margin-bottom:16px;
}
.hero-subtitle{
  font-size:18px;
  color:var(--color-text-secondary);
  max-width:560px;
  margin-bottom:36px;
  line-height:1.7;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}

/* ===== Knowledge Frame ===== */
.knowledge-frame{padding:100px 0;background:var(--color-bg)}
.knowledge-grid{
  display:grid;
  grid-template-columns:0.85fr 1.15fr;
  gap:64px;
  align-items:start;
}
.knowledge-intro .section-title{margin-bottom:20px}
.knowledge-intro p{color:var(--color-text-secondary);font-size:16px;line-height:1.8}
.knowledge-intro .btn{margin-top:24px}
.knowledge-cards{display:flex;flex-direction:column;gap:20px}
.knowledge-card{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-card);
  padding:28px 32px;
  transition:all var(--transition);
}
.knowledge-card:hover{
  border-color:var(--color-main);
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
}
.knowledge-icon{
  width:64px;height:64px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  color:var(--color-main);
  background:rgba(201,169,110,0.12);
  border-radius:12px;
  border:1px solid rgba(201,169,110,0.25);
}
.knowledge-card h3{font-size:19px;font-weight:600;margin-bottom:8px;color:var(--color-text)}
.knowledge-card p{font-size:14.5px;color:var(--color-text-secondary);line-height:1.7}

/* ===== Quick Table ===== */
.quick-table-section{
  background:var(--color-surface);
  border-top:1px solid var(--color-border);
  border-bottom:1px solid var(--color-border);
  padding:100px 0;
}
.table-wrap{
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-banner);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.table-wrap table{
  width:100%;
  border-collapse:collapse;
}
.table-wrap th{
  background:var(--color-surface-2);
  font-size:13px;
  font-weight:600;
  letter-spacing:0.06em;
  color:var(--color-main);
  text-align:left;
  padding:18px 24px;
  border-bottom:1px solid var(--color-border);
  white-space:nowrap;
}
.table-wrap td{
  padding:20px 24px;
  font-size:15px;
  color:var(--color-text);
  border-bottom:1px solid var(--color-border);
  line-height:1.6;
  vertical-align:top;
}
.table-wrap tr:last-child td{border-bottom:none}
.table-wrap tr:hover td{background:rgba(201,169,110,0.04)}
.table-wrap td:first-child{font-weight:600;color:var(--color-main-light)}
.difficulty-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  padding:3px 10px;
  border-radius:var(--radius-badge);
  background:rgba(201,169,110,0.14);
  color:var(--color-main-light);
}
.difficulty-tag.mid{background:rgba(82,229,198,0.12);color:var(--color-accent)}
.difficulty-tag.hard{background:rgba(229,106,106,0.14);color:var(--color-danger)}

/* ===== Timeline ===== */
.timeline-section{padding:100px 0;background:var(--color-bg)}
.timeline{
  position:relative;
  max-width:820px;
  margin:0 auto;
  padding-left:0;
}
.timeline::before{
  content:'';
  position:absolute;
  left:28px;
  top:0;
  bottom:0;
  width:2px;
  background:linear-gradient(180deg,var(--color-main),rgba(201,169,110,0.2));
}
.timeline-item{
  position:relative;
  padding:0 0 56px 88px;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:'';
  position:absolute;
  left:18px;
  top:8px;
  width:20px;
  height:20px;
  border-radius:50%;
  background:var(--color-bg);
  border:3px solid var(--color-main);
  box-shadow:0 0 0 4px rgba(201,169,110,0.15);
}
.timeline-num{
  font-family:var(--font-num);
  font-size:34px;
  font-weight:700;
  color:var(--color-main);
  letter-spacing:0.05em;
  line-height:1;
  margin-bottom:10px;
}
.timeline-item h3{font-size:20px;font-weight:600;margin-bottom:8px;color:var(--color-text)}
.timeline-item p{font-size:15px;color:var(--color-text-secondary);line-height:1.7;max-width:560px}

/* ===== Steps ===== */
.steps-section{
  background:var(--color-surface);
  border-top:1px solid var(--color-border);
  border-bottom:1px solid var(--color-border);
  padding:100px 0;
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step-card{
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-card);
  padding:32px 28px;
  position:relative;
  transition:all var(--transition);
  height:100%;
}
.step-card:hover{
  border-color:var(--color-main);
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.step-index{
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  color:var(--color-main);
  letter-spacing:0.08em;
  margin-bottom:40px;
  display:block;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:10px;color:var(--color-text)}
.step-card p{font-size:14px;color:var(--color-text-secondary);line-height:1.7}

/* ===== FAQ ===== */
.faq-section{padding:100px 0;background:var(--color-bg)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--color-border);
  padding:24px 0;
}
.faq-item:first-child{border-top:1px solid var(--color-border)}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:17px;
  font-weight:600;
  color:var(--color-text);
  padding:4px 0;
  transition:color var(--transition);
  text-align:left;
  width:100%;
}
.faq-question:hover{color:var(--color-main)}
.faq-icon{
  flex-shrink:0;
  width:32px;height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  font-weight:400;
  color:var(--color-text-secondary);
  border:1px solid var(--color-border);
  border-radius:50%;
  transition:all var(--transition);
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  color:var(--color-main);
  border-color:var(--color-main);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.3s ease-out;
}
.faq-answer-inner{
  padding-top:12px;
  padding-right:52px;
  font-size:15px;
  color:var(--color-text-secondary);
  line-height:1.75;
}

/* ===== CTA ===== */
.cta-section{
  padding:100px 0;
  position:relative;
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:rgba(16,19,26,0.82);
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:640px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:38px;
  font-weight:700;
  line-height:1.25;
  margin-bottom:16px;
  color:var(--color-text);
}
.cta-inner p{
  font-size:16px;
  color:var(--color-text-secondary);
  margin-bottom:32px;
}
.cta-inner .btn{margin:0 8px}

/* ===== Footer ===== */
.site-footer{
  background:#0C0F14;
  border-top:1px solid var(--color-border);
  padding:64px 0 32px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:48px;
  margin-bottom:48px;
}
.footer-brand .footer-logo{
  font-size:20px;
  font-weight:700;
  color:var(--color-main);
  display:inline-block;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:14px;
  color:var(--color-text-secondary);
  line-height:1.7;
  max-width:360px;
}
.footer-links{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:0.06em;
  color:var(--color-text);
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--color-text-secondary);
  padding:4px 0;
  transition:color var(--transition),transform var(--transition);
}
.footer-col a:hover{color:var(--color-main);transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid var(--color-border);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
}
.footer-bottom p{
  font-size:13px;
  color:#6B7486;
  line-height:1.6;
}

/* ===== Responsive ===== */
@media(max-width:1199px){
  .section{padding:72px 0}
  .knowledge-grid{gap:40px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:991px){
  .page-hero{padding:150px 0 80px}
  .page-hero h1{font-size:42px}
  .knowledge-grid{grid-template-columns:1fr;gap:48px}
  .header-cta{display:none}
}
@media(max-width:767px){
  .container{padding:0 16px}
  .site-header .main-nav{display:none}
  .nav-toggle{display:flex}
  .section{padding:56px 0}
  .section-title{font-size:28px}
  .page-hero{padding:130px 0 60px}
  .page-hero h1{font-size:34px}
  .hero-subtitle{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn-lg{width:100%;text-align:center}
  .knowledge-card{padding:24px 20px;grid-template-columns:52px 1fr}
  .knowledge-icon{width:52px;height:52px;font-size:18px}
  .timeline-item{padding-left:68px}
  .timeline::before{left:20px}
  .timeline-item::before{left:10px;width:20px;height:20px}
  .timeline-num{font-size:28px}
  .steps-grid{grid-template-columns:1fr;gap:16px}
  .table-wrap{overflow-x:auto}
  .table-wrap table{min-width:720px}
  .faq-question{font-size:16px}
  .faq-answer-inner{padding-right:0}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-links{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column}
  .cta-inner h2{font-size:30px}
  .cta-inner .btn{display:block;margin:12px auto;max-width:280px}
}
@media(max-width:400px){
  .site-logo{font-size:16px}
  .footer-links{grid-template-columns:1fr}
}