/* roulang page: index */
:root {
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-primary: #15362F;
  --color-primary-light: #2B4F46;
  --color-primary-dark: #0F2620;
  --color-accent: #E8A458;
  --color-accent-hover: #F0B877;
  --color-gold: #C49A6C;
  --color-text: #1C1C1A;
  --color-text-muted: #6B6B66;
  --color-border: #E4E0D8;
  --color-footer-bg: #0F2620;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 4px rgba(28,28,26,0.06);
  --shadow-md: 0 4px 16px rgba(28,28,26,0.08);
  --shadow-lg: 0 12px 40px rgba(28,28,26,0.10);
  --font-sans: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
  --container: 1200px;
  --section-gap: 96px;
}
*, *::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: 1.8;
  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: color 0.2s ease;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: var(--section-gap) 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-text);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(232,164,88,0.3);
}
.btn-outline {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  transform: translateY(-1px);
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.65);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  transform: translateY(-1px);
}
.btn-lg {
  height: 54px;
  padding: 0 40px;
  font-size: 16px;
}
.btn-xl {
  height: 56px;
  padding: 0 44px;
  font-size: 18px;
}
.btn-accent {
  background: var(--color-accent);
  color: var(--color-text);
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(232,164,88,0.35);
}
/* Top Bar */
.top-bar {
  background: var(--color-primary-dark);
  height: 48px;
  display: flex;
  align-items: center;
}
.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}
.top-domain {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  letter-spacing: 0.04em;
}
.top-links {
  display: flex;
  gap: 20px;
  align-items: center;
}
.top-links a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
}
.top-links a:hover {
  color: #fff;
}
.top-links .divider {
  color: rgba(255,255,255,0.3);
}
/* Navbar */
.navbar {
  background: var(--color-surface);
  height: 72px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 8px rgba(28,28,26,0.04);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-logo {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  letter-spacing: 0.02em;
}
.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.01em;
}
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
  margin-left: auto;
}
.nav-links a {
  font-size: 15px;
  color: var(--color-text-muted);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}
.nav-links a:hover {
  color: var(--color-primary);
}
.nav-links a.active {
  color: var(--color-primary);
  font-weight: 600;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.nav-cta {
  height: 40px;
  padding: 0 24px;
  font-size: 14px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: 8px;
  flex-shrink: 0;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
/* Hero */
.hero {
  background: linear-gradient(135deg, #F0EDE6 0%, #F7F5F0 55%, #EBE7DF 100%);
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -160px;
  width: 420px;
  height: 420px;
  background: rgba(232,164,88,0.08);
  border-radius: 50%;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 64px;
  position: relative;
}
.hero-content {
  flex: 1 1 55%;
  max-width: 560px;
}
.hero-content h1 {
  font-size: 46px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--color-text-muted);
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta span::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}
.hero-visual {
  flex: 1 1 45%;
  max-width: 520px;
}
.hero-visual img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,0.6);
}
/* Stat Bar */
.stat-bar {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.stat-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 36px 0;
  gap: 24px;
}
.stat-item {
  text-align: center;
  flex: 1;
}
.stat-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}
/* Value Section */
.value-section {
  padding: var(--section-gap) 0;
}
.value-grid {
  display: flex;
  align-items: center;
  gap: 80px;
}
.value-content {
  flex: 1 1 50%;
}
.value-content .section-tagline {
  color: var(--color-gold);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.value-content h2 {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 650;
  color: var(--color-primary-dark);
  margin-bottom: 36px;
}
.value-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.value-list li {
  border-left: 3px solid var(--color-accent);
  padding-left: 20px;
}
.value-list h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.value-list p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.value-visual {
  flex: 1 1 50%;
  max-width: 520px;
}
.value-visual img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
/* Carousel Section */
.carousel-section {
  padding: var(--section-gap) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 650;
  color: var(--color-primary-dark);
  letter-spacing: -0.01em;
}
.section-head .section-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 8px;
}
.carousel-wrap {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}
.carousel-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  background: #fff;
}
.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.carousel-slide.active {
  position: relative;
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}
.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}
.slide-tag {
  margin-top: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg);
  padding: 4px 16px;
  border-radius: 20px;
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  z-index: 5;
  transition: all 0.2s ease;
}
.carousel-btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.carousel-prev {
  left: -22px;
}
.carousel-next {
  right: -22px;
}
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}
.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  transition: all 0.25s ease;
  cursor: pointer;
}
.carousel-dot.active {
  width: 18px;
  border-radius: 5px;
  background: var(--color-accent);
}
/* System Requirements */
.sys-req {
  padding: var(--section-gap) 0;
}
.req-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.req-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all 0.2s ease;
}
.req-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}
.req-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--color-primary);
  color: #fff;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.req-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}
.req-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.req-card ul li {
  font-size: 14px;
  color: var(--color-text-muted);
  padding-left: 16px;
  position: relative;
}
.req-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}
.req-note {
  margin-top: 18px;
  font-size: 12px;
  color: var(--color-text-muted);
  border-top: 1px dashed var(--color-border);
  padding-top: 14px;
}
.req-footer {
  text-align: center;
  margin-top: 32px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.req-footer a {
  color: var(--color-primary-light);
  font-weight: 500;
}
.req-footer a:hover {
  color: var(--color-accent);
}
/* Testimonials */
.testimonials {
  padding: var(--section-gap) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testimonial-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.quote-mark {
  font-size: 42px;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: 8px;
  font-family: Georgia, serif;
}
.stars {
  color: var(--color-accent);
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.testimonial-card p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 24px;
}
.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-light);
  opacity: 0.8;
}
.user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}
.user-role {
  font-size: 12px;
  color: var(--color-text-muted);
}
/* FAQ */
.faq-section {
  padding: var(--section-gap) 0;
}
.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 {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: background 0.2s ease;
  border-radius: 4px;
}
.faq-question:hover {
  background: rgba(196,154,108,0.04);
}
.faq-question .faq-icon {
  font-size: 20px;
  font-weight: 300;
  color: var(--color-gold);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-answer p {
  padding: 0 8px 22px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
}
/* News */
.news-section {
  padding: var(--section-gap) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}
.news-list {
  margin-top: 12px;
}
.news-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 8px;
  border-bottom: 1px solid #E8E5DE;
  transition: background 0.2s ease;
}
.news-row:hover {
  background: var(--color-bg);
}
.news-date {
  width: 90px;
  flex-shrink: 0;
  font-size: 13px;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  font-family: "SF Mono", "Menlo", monospace;
}
.news-cat {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 2px 12px;
  border-radius: 20px;
}
.news-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
  transition: color 0.2s ease;
}
.news-title:hover {
  color: var(--color-primary-light);
}
.news-summary {
  font-size: 14px;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}
.news-empty {
  padding: 120px 0;
  text-align: center;
  font-size: 14px;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.news-empty::before {
  content: "";
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  display: block;
}
/* CTA */
.cta-section {
  background: var(--color-primary-dark);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 1px;
  background: var(--color-accent);
}
.cta-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.cta-inner h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.cta-inner p {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}
.qr-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.qr-box {
  width: 120px;
  height: 120px;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.qr-grid {
  width: 96px;
  height: 96px;
  background-image:
    linear-gradient(to right, #E0DCD4 1px, transparent 1px),
    linear-gradient(to bottom, #E0DCD4 1px, transparent 1px);
  background-size: 8px 8px;
  border-radius: 4px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qr-grid::after {
  content: "二维码占位";
  font-size: 10px;
  color: #999;
  background: #fff;
  padding: 2px 6px;
  border-radius: 2px;
  white-space: nowrap;
}
.qr-block > span {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
}
/* Footer */
.site-footer {
  background: var(--color-footer-bg);
  padding: 64px 0 32px;
}
.footer-subscribe {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.footer-subscribe p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}
.subscribe-form {
  display: flex;
  gap: 8px;
}
.subscribe-form input {
  width: 260px;
  height: 40px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  padding: 0 16px;
  font-size: 14px;
  color: #fff;
  outline: none;
  transition: border-color 0.2s ease;
}
.subscribe-form input::placeholder {
  color: rgba(255,255,255,0.35);
}
.subscribe-form input:focus {
  border-color: var(--color-accent);
}
.subscribe-form .btn {
  height: 40px;
  padding: 0 24px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
}
.footer-col ul li a:hover {
  color: var(--color-accent);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.hero-content h1,
.hero-sub,
.hero-actions,
.hero-meta {
  animation: fadeUp 0.6s ease both;
}
.hero-sub {
  animation-delay: 0.1s;
}
.hero-actions {
  animation-delay: 0.2s;
}
.hero-meta {
  animation-delay: 0.3s;
}
.hero-visual {
  animation: fadeUp 0.7s ease 0.15s both;
}
/* Responsive */
@media (max-width: 1024px) {
  .nav-links {
    position: fixed;
    top: 120px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 120px);
    background: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 40px 32px;
    gap: 24px;
    box-shadow: -8px 0 24px rgba(28,28,26,0.08);
    transition: right 0.3s ease;
    z-index: 99;
  }
  .nav-links.open {
    right: 0;
  }
  .nav-links a {
    font-size: 16px;
  }
  .nav-links a.active::after {
    left: -16px;
    right: auto;
    width: 3px;
    height: auto;
    top: 6px;
    bottom: 6px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-cta {
    display: none;
  }
  .hero-inner {
    flex-direction: column;
    gap: 40px;
  }
  .hero-content {
    max-width: 100%;
  }
  .hero-content h1 {
    font-size: 38px;
  }
  .hero-visual {
    max-width: 100%;
  }
  .carousel-prev {
    left: 8px;
  }
  .carousel-next {
    right: 8px;
  }
  .req-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  :root {
    --section-gap: 64px;
  }
  .container {
    padding: 0 20px;
  }
  .hero {
    padding: 48px 0 40px;
  }
  .hero-content h1 {
    font-size: 32px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stat-grid {
    flex-wrap: wrap;
    gap: 16px;
  }
  .stat-item {
    flex: 1 1 40%;
  }
  .value-grid {
    flex-direction: column-reverse;
    gap: 40px;
  }
  .value-content h2 {
    font-size: 28px;
  }
  .carousel-viewport {
    aspect-ratio: 4 / 3;
  }
  .carousel-btn {
    display: none;
  }
  .req-grid {
    grid-template-columns: 1fr;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .news-row {
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 4px;
  }
  .news-date {
    width: auto;
  }
  .news-title {
    max-width: 100%;
    white-space: normal;
  }
  .news-summary {
    width: 100%;
    white-space: normal;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-subscribe {
    flex-direction: column;
    align-items: flex-start;
  }
  .subscribe-form {
    width: 100%;
    flex-direction: column;
  }
  .subscribe-form input {
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .hero-content h1 {
    font-size: 28px;
  }
  .stat-item {
    flex: 1 1 100%;
  }
  .value-list h3 {
    font-size: 18px;
  }
  .section-head h2,
  .value-content h2,
  .cta-inner h2 {
    font-size: 26px;
  }
  .top-links .divider {
    display: none;
  }
  .top-links {
    gap: 12px;
  }
  .top-domain {
    font-size: 13px;
  }
  .cta-inner p {
    font-size: 16px;
  }
}

/* roulang page: category1 */
:root {
            --color-bg: #F7F5F0;
            --color-surface: #FFFFFF;
            --color-primary: #15362F;
            --color-primary-light: #2B4F46;
            --color-primary-dark: #0F2620;
            --color-accent: #E8A458;
            --color-accent-hover: #F0B877;
            --color-gold: #C49A6C;
            --color-text: #1C1C1A;
            --color-text-muted: #6B6B66;
            --color-border: #E4E0D8;
            --color-footer-bg: #0F2620;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 4px rgba(28, 28, 26, 0.06);
            --shadow-md: 0 4px 16px rgba(28, 28, 26, 0.08);
            --shadow-lg: 0 12px 40px rgba(28, 28, 26, 0.10);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
            --container: 1200px;
            --section-gap: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

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

        /* 顶部信息条 */
        .topbar {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            height: 48px;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .topbar-links a {
            color: rgba(255, 255, 255, 0.78);
            transition: color 0.2s ease;
        }

        .topbar-links a:hover {
            color: #fff;
        }

        .topbar-links a+a {
            margin-left: 24px;
        }

        /* 主导航 */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: 72px;
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            height: 72px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 40px;
            height: 40px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 650;
            color: var(--color-text);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-left: 48px;
            flex: 1;
        }

        .nav-links a {
            font-size: 15px;
            color: var(--color-text);
            padding: 24px 0 20px;
            position: relative;
            transition: color 0.2s ease;
        }

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

        .nav-links a.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px 2px 0 0;
        }

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

        .nav-toggle {
            display: none;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 32px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.2s ease;
            border: none;
        }

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

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

        .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

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

        .btn-accent:hover {
            background: var(--color-accent-hover);
        }

        .btn-sm {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        /* 页面Banner */
        .page-banner {
            position: relative;
            height: 420px;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        .banner-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 38, 32, 0.88) 0%, rgba(15, 38, 32, 0.55) 50%, rgba(15, 38, 32, 0.15) 100%);
            z-index: 1;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 720px;
        }

        .page-banner-content .breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }

        .page-banner-content .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s ease;
        }

        .page-banner-content .breadcrumb a:hover {
            color: #fff;
        }

        .page-banner-content .breadcrumb span {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.4);
        }

        .page-banner-content h1 {
            font-size: 44px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .page-banner-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.75;
            max-width: 600px;
        }

        /* 主体内容 */
        .content-wrap {
            padding: var(--section-gap) 0 64px;
        }

        .two-col {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 64px;
            align-items: start;
        }

        /* 侧边锚点导航 */
        .side-nav {
            position: sticky;
            top: 96px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .side-nav h3 {
            font-size: 13px;
            color: var(--color-text-muted);
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border);
        }

        .side-nav li+li {
            margin-top: 2px;
        }

        .side-nav a {
            display: block;
            padding: 10px 14px;
            border-radius: var(--radius-md);
            font-size: 15px;
            color: var(--color-text);
            transition: all 0.2s ease;
            border-left: 2px solid transparent;
        }

        .side-nav a:hover {
            background: rgba(21, 54, 47, 0.06);
            color: var(--color-primary);
            border-left-color: var(--color-gold);
        }

        .side-nav a.active {
            background: rgba(232, 164, 88, 0.14);
            color: var(--color-primary-dark);
            font-weight: 600;
            border-left-color: var(--color-accent);
        }

        /* 功能模块内容 */
        .content-main {
            display: flex;
            flex-direction: column;
            gap: 64px;
        }

        .func-section {
            scroll-margin-top: 96px;
        }

        .func-section h2 {
            font-size: 28px;
            font-weight: 650;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
            display: flex;
            align-items: baseline;
        }

        .func-section h2 span {
            font-size: 16px;
            color: var(--color-accent);
            margin-right: 12px;
            font-weight: 700;
            letter-spacing: 0;
        }

        .func-section p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }

        .func-section p:last-child {
            margin-bottom: 0;
        }

        /* 指标区 */
        .metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 80px;
            padding-top: 64px;
            border-top: 1px solid var(--color-border);
        }

        .metric-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: all 0.2s ease;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--color-primary-light);
        }

        .metric-card .num {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        .metric-card .label {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-top: 8px;
        }

        /* FAQ区域 */
        .faq-wrap {
            padding: var(--section-gap) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }

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

        .faq-head h2 {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-text);
            letter-spacing: -0.01em;
        }

        .faq-head p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-top: 12px;
        }

        .faq-list {
            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-q {
            width: 100%;
            text-align: left;
            padding: 24px 16px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s ease, color 0.2s ease;
            border-radius: var(--radius-md);
        }

        .faq-q:hover {
            background: rgba(232, 164, 88, 0.06);
            color: var(--color-primary);
        }

        .faq-q:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: -2px;
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            position: relative;
            flex-shrink: 0;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            left: 50%;
            top: 50%;
            background: var(--color-accent);
            transition: transform 0.25s ease, opacity 0.25s ease;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
            transform: translate(-50%, -50%);
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
            transform: translate(-50%, -50%);
        }

        .faq-item.open .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }

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

        .faq-a p {
            padding: 0 16px 24px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 760px;
        }

        /* CTA */
        .cta-section {
            background: var(--color-primary-dark);
            padding: var(--section-gap) 0;
            text-align: center;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 50%;
            transform: translateX(-50%);
            width: 64px;
            height: 1px;
            background: var(--color-accent);
        }

        .cta-section h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 650;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 16px;
            margin-bottom: 40px;
        }

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

        .btn-light {
            background: var(--color-accent);
            color: var(--color-primary-dark);
            height: 56px;
            padding: 0 40px;
            font-size: 17px;
            border-radius: var(--radius-md);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .btn-light:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-ghost {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            height: 56px;
            padding: 0 40px;
            font-size: 17px;
            border-radius: var(--radius-md);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            transition: all 0.2s ease;
            background: transparent;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .back-home {
            padding-top: 40px;
        }

        .back-home a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .back-home a:hover {
            color: #fff;
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-footer-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px;
        }

        .footer-subscribe {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding-bottom: 48px;
            margin-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }

        .subscribe-form input {
            height: 40px;
            width: 280px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 6px;
            padding: 0 16px;
            color: #fff;
            font-size: 14px;
            transition: border-color 0.2s ease;
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .subscribe-form input:focus {
            border-color: var(--color-accent);
            outline: none;
        }

        .subscribe-form .btn-accent {
            height: 40px;
            padding: 0 24px;
            font-size: 14px;
            border-radius: 6px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 16px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 650;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col li+li {
            margin-top: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 滚动渐显 */
        .reveal {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-links {
                position: fixed;
                top: 120px;
                left: 0;
                right: 0;
                background: var(--color-surface);
                border-bottom: 1px solid var(--color-border);
                flex-direction: column;
                padding: 24px;
                gap: 0;
                margin: 0;
                display: none;
                box-shadow: var(--shadow-lg);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links li {
                width: 100%;
            }

            .nav-links a {
                padding: 14px 0;
                width: 100%;
                border-bottom: 1px solid var(--color-border);
                display: block;
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
                flex-direction: column;
                gap: 4px;
                margin-left: auto;
                margin-right: 16px;
                padding: 10px;
                border-radius: var(--radius-md);
                transition: background 0.2s ease;
            }

            .nav-toggle:hover {
                background: rgba(21, 54, 47, 0.04);
            }

            .nav-toggle span {
                width: 20px;
                height: 2px;
                background: var(--color-text);
                transition: transform 0.3s ease, opacity 0.3s ease;
            }

            .nav-toggle.open span:nth-child(1) {
                transform: translateY(6px) rotate(45deg);
            }

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

            .nav-toggle.open span:nth-child(3) {
                transform: translateY(-6px) rotate(-45deg);
            }

            .nav-cta {
                display: none;
            }

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

            .side-nav {
                position: static;
                padding: 16px;
            }

            .side-nav ul {
                display: flex;
                flex-wrap: wrap;
                gap: 8px;
            }

            .side-nav li+li {
                margin-top: 0;
            }

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

            .page-banner {
                height: 360px;
            }

            .page-banner-content h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 64px;
            }

            .page-banner {
                height: 300px;
            }

            .page-banner-content h1 {
                font-size: 30px;
            }

            .page-banner-content p {
                font-size: 15px;
            }

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

            .subscribe-form {
                width: 100%;
            }

            .subscribe-form input {
                flex: 1;
                width: auto;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .metrics {
                margin-top: 56px;
                padding-top: 40px;
            }

            .func-section h2 {
                font-size: 24px;
            }

            .content-main {
                gap: 48px;
            }

            .faq-head h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .topbar-inner {
                font-size: 13px;
            }

            .topbar-links a+a {
                margin-left: 14px;
            }

            .brand-text {
                font-size: 18px;
            }

            .page-banner-content h1 {
                font-size: 26px;
            }

            .page-banner-content p {
                font-size: 14px;
                line-height: 1.7;
            }

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

            .metric-card {
                padding: 24px 16px;
            }

            .metric-card .num {
                font-size: 28px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }

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

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

            .btn-light,
            .btn-ghost {
                width: 100%;
                max-width: 320px;
            }
        }

/* roulang page: article */
:root {
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-primary: #15362F;
  --color-primary-light: #2B4F46;
  --color-primary-dark: #0F2620;
  --color-accent: #E8A458;
  --color-accent-hover: #F0B877;
  --color-gold: #C49A6C;
  --color-text: #1C1C1A;
  --color-text-muted: #6B6B66;
  --color-border: #E4E0D8;
  --color-footer-bg: #0F2620;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 4px rgba(28,28,26,0.06);
  --shadow-md: 0 4px 16px rgba(28,28,26,0.08);
  --shadow-lg: 0 12px 40px rgba(28,28,26,0.10);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  --container: 1200px;
  --section-gap: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

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

input, textarea {
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.65);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

.btn-outline:focus-visible {
  outline: 2px solid rgba(255,255,255,0.65);
  outline-offset: 2px;
}

.btn-light-outline {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-primary);
}

.btn-light-outline:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  border-radius: 6px;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

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

/* ===== 顶部信息条 ===== */
.topbar {
  background: var(--color-primary-dark);
  height: 48px;
  display: flex;
  align-items: center;
  font-size: 14px;
  color: rgba(255,255,255,0.65);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.topbar-links a {
  color: rgba(255,255,255,0.65);
  margin-left: 24px;
  transition: color 0.2s ease;
}

.topbar-links a:hover {
  color: #fff;
}

/* ===== 主导航 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 0 rgba(28,28,26,0.02);
}

.navbar-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 16px;
}

.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-links a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: 6px;
  position: relative;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover {
  color: var(--color-primary);
  background: rgba(21,54,47,0.04);
}

.nav-links a.active {
  color: var(--color-primary);
  font-weight: 600;
}

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

.nav-cta {
  height: 40px;
  line-height: 40px;
  padding: 0 20px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(21,54,47,0.06);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s 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);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 32px 0 8px;
  line-height: 1.5;
}

.breadcrumb a {
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.crumb-sep {
  color: #C9C5BD;
  font-size: 12px;
}

.crumb-current {
  color: var(--color-text);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 420px;
}

/* ===== 文章主体 ===== */
.article-wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 16px 24px 0;
}

.article-header {
  text-align: center;
  padding: 40px 0 32px;
}

.article-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  max-width: 720px;
  margin: 0 auto;
  color: var(--color-text);
}

.article-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 14px;
  color: var(--color-text-muted);
}

.article-meta .dot {
  color: #C9C5BD;
}

.article-meta .meta-cat {
  display: inline-block;
  background: rgba(21,54,47,0.06);
  color: var(--color-primary);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}

.article-cover {
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin: 0 0 40px;
  box-shadow: var(--shadow-md);
  aspect-ratio: 16 / 9;
  background: #E9E5DD;
}

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

.article-content {
  max-width: 720px;
  margin: 0 auto 48px;
}

/* ===== 正文排版 ===== */
.cms-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
}

.cms-content h2 {
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 44px 0 16px;
  padding-top: 8px;
  color: var(--color-primary);
}

.cms-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--color-primary);
}

.cms-content h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 8px;
}

.cms-content p {
  margin: 0 0 24px;
}

.cms-content ul,
.cms-content ol {
  margin: 0 0 24px;
  padding-left: 24px;
}

.cms-content ul {
  list-style: disc;
}

.cms-content ol {
  list-style: decimal;
}

.cms-content li {
  margin-bottom: 6px;
}

.cms-content blockquote {
  border-left: 3px solid var(--color-primary);
  background: #F0EDE6;
  padding: 16px 22px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 28px 0;
  color: var(--color-text-muted);
}

.cms-content blockquote p {
  margin: 0;
}

.cms-content img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 28px auto;
  box-shadow: var(--shadow-sm);
}

.cms-content a {
  color: var(--color-primary-light);
  border-bottom: 1px solid rgba(43,79,70,0.3);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.cms-content a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.cms-content code {
  font-family: "SF Mono", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: 14px;
  background: #F0EDE6;
  padding: 2px 6px;
  border-radius: 4px;
}

.cms-content pre {
  background: #F0EDE6;
  border-radius: var(--radius-lg);
  padding: 20px;
  overflow-x: auto;
  margin: 28px 0;
}

.cms-content pre code {
  background: none;
  padding: 0;
  font-size: 14px;
  line-height: 1.6;
}

.cms-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 14px;
}

.cms-content th,
.cms-content td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}

.cms-content th {
  background: #F0EDE6;
  font-weight: 600;
}

/* ===== 空态 ===== */
.article-empty {
  max-width: 720px;
  margin: 80px auto;
  text-align: center;
  padding: 80px 24px;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.empty-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  position: relative;
}

.empty-icon::before,
.empty-icon::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--color-border);
}

.empty-icon::before {
  width: 2px;
  height: 18px;
  transform: translate(-50%, -50%);
}

.empty-icon::after {
  width: 18px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.article-empty h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.article-empty p {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* ===== 相关文章 ===== */
.related-posts {
  max-width: 920px;
  margin: 64px auto 0;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.related-posts h2 {
  font-size: 28px;
  font-weight: 650;
  margin-bottom: 32px;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

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

.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  display: block;
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-primary-light);
}

.related-card:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

.related-card h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--color-text);
}

.related-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card time {
  font-size: 13px;
  color: #9B9B94;
  font-variant-numeric: tabular-nums;
}

/* ===== 文末返回 ===== */
.article-footer-nav {
  max-width: 920px;
  margin: 48px auto 0;
  padding: 24px 0 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border);
}

.back-link,
.next-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
}

.back-link:hover,
.next-link:hover {
  color: var(--color-primary);
}

.back-link:hover {
  transform: translateX(-2px);
}

.next-link:hover {
  transform: translateX(2px);
}

.next-link.is-disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

/* ===== CTA 区 ===== */
.cta-section {
  margin-top: var(--section-gap);
  background: var(--color-primary-dark);
  padding: 88px 0;
  position: relative;
}

.cta-section::before {
  content: '';
  display: block;
  width: 64px;
  height: 1px;
  background: var(--color-accent);
  margin: 0 auto 40px;
}

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

.cta-title {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.cta-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin-top: 12px;
  margin-bottom: 32px;
  line-height: 1.6;
}

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

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-footer-bg);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 32px;
}

.footer-subscribe {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: 48px;
}

.footer-subscribe p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.6);
}

.subscribe-form {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.subscribe-form input {
  height: 40px;
  padding: 0 14px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 14px;
  min-width: 280px;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.subscribe-form input::placeholder {
  color: rgba(255,255,255,0.4);
}

.subscribe-form input:focus {
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.14);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 280px;
  color: rgba(255,255,255,0.6);
}

.footer-col h4 {
  font-size: 15px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 16px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 24px 24px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li a {
    display: block;
    padding: 12px 8px;
    border-radius: 6px;
  }

  .nav-links a.active::after {
    display: none;
  }

  .nav-links a.active {
    background: rgba(21,54,47,0.06);
  }

  .nav-cta {
    display: none;
  }

  .navbar-inner {
    gap: 16px;
  }

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

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .article-title {
    font-size: 28px;
  }

  .article-wrap {
    padding-top: 8px;
  }

  .article-header {
    padding: 28px 0 24px;
  }

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

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

  .subscribe-form {
    width: 100%;
  }

  .subscribe-form input {
    flex: 1;
    min-width: 0;
  }

  .cta-title {
    font-size: 26px;
  }

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

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

  .article-footer-nav {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }

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

  .cta-btns .btn {
    width: 100%;
    max-width: 280px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .topbar {
    font-size: 12px;
  }

  .topbar-links a {
    margin-left: 12px;
  }

  .brand-text {
    font-size: 16px;
  }

  .article-title {
    font-size: 24px;
  }

  .article-meta {
    gap: 6px;
    font-size: 13px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .breadcrumb {
    font-size: 13px;
    padding-top: 24px;
  }

  .crumb-current {
    max-width: 200px;
  }
}

/* roulang page: category3 */
:root {
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-primary: #15362F;
  --color-primary-light: #2B4F46;
  --color-primary-dark: #0F2620;
  --color-accent: #E8A458;
  --color-accent-hover: #F0B877;
  --color-gold: #C49A6C;
  --color-text: #1C1C1A;
  --color-text-muted: #6B6B66;
  --color-border: #E4E0D8;
  --color-footer-bg: #0F2620;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 4px rgba(28,28,26,0.06);
  --shadow-md: 0 4px 16px rgba(28,28,26,0.08);
  --shadow-lg: 0 12px 40px rgba(28,28,26,0.10);
  --font-sans: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
  --container: 1200px;
  --section-gap: 96px;
}

*, *::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: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

button, input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

ul, ol {
  list-style: none;
}

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

/* ===== Topbar ===== */
.topbar {
  background: var(--color-primary-dark);
  height: 48px;
  display: flex;
  align-items: center;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.topbar-domain {
  font-size: 14px;
  color: rgba(255,255,255,0.72);
  letter-spacing: 0.02em;
}

.topbar-links {
  display: flex;
  gap: 24px;
}

.topbar-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.76);
  transition: color 0.2s ease;
}

.topbar-links a:hover {
  color: #ffffff;
}

/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-md);
  letter-spacing: 0.02em;
}

.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 6px 2px;
  position: relative;
  transition: color 0.2s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

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

.nav-links a.active {
  color: var(--color-primary);
  font-weight: 600;
}

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

.nav-cta {
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #1C1C1A;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #1C1C1A;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline-light {
  border: 1px solid rgba(255,255,255,0.72);
  color: #ffffff;
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  color: #ffffff;
  border-color: #ffffff;
}

.btn-accent {
  background: var(--color-accent);
  color: #1C1C1A;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.nav-cta {
  height: 40px;
  padding: 0 22px;
  font-size: 14px;
}

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

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.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 ===== */
.hero {
  padding: 96px 0 80px;
  background: linear-gradient(135deg, #F7F5F0 0%, #EFEAE0 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.hero h1 {
  font-size: 46px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 20px;
}

.hero h1 .highlight {
  color: var(--color-primary);
  position: relative;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero-note {
  font-size: 14px;
  color: var(--color-text-muted);
}

.hero-note a {
  color: var(--color-primary);
  font-weight: 500;
}

.hero-figure {
  position: relative;
}

.hero-figure .img-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16 / 10;
  background: var(--color-border);
}

.hero-figure .img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fig-card {
  position: absolute;
  bottom: -24px;
  left: -20px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.fig-card .icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
}

.fig-card .text b {
  font-size: 14px;
  color: var(--color-text);
}

.fig-card .text span {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ===== Metrics ===== */
.metrics {
  padding: 56px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
}

.metric-item {
  text-align: center;
}

.metric-item .num {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

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

/* ===== Section Common ===== */
.section {
  padding: var(--section-gap) 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.4;
  margin-bottom: 12px;
}

.section-head p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ===== Help Topics ===== */
.help-topics {
  padding: 72px 0 0;
}

.topics-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.topic-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 14px;
  color: var(--color-text);
  transition: all 0.2s ease;
  cursor: pointer;
}

.topic-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.topic-chip .t-icon {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ===== FAQ ===== */
.faq-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}

.faq-nav {
  position: sticky;
  top: 96px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.faq-nav h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.faq-nav h3 .nav-icon {
  font-size: 18px;
}

.faq-nav p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.faq-nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.faq-nav-list a {
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.faq-nav-list a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}

.faq-nav-list a.active {
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 500;
}

.faq-main {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.faq-group h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-group h3 .g-count {
  font-size: 12px;
  font-weight: 500;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 2px 10px;
  border-radius: 999px;
  color: var(--color-text-muted);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.faq-q {
  width: 100%;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  transition: background 0.2s ease;
}

.faq-q:hover {
  background: rgba(232, 164, 88, 0.06);
}

.faq-q .q-text {
  flex: 1;
  line-height: 1.6;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-primary);
  transition: transform 0.25s ease, background 0.2s ease, border-color 0.2s ease;
  flex-shrink: 0;
  line-height: 1;
}

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

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-a-inner {
  padding: 0 28px 24px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-muted);
  border-top: 1px dashed var(--color-border);
  padding-top: 16px;
}

/* ===== Process ===== */
.process-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  counter-reset: process;
}

.process-step {
  position: relative;
  padding: 32px 24px 24px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.process-step::before {
  content: counter(process);
  counter-increment: process;
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 32px;
  font-weight: 700;
  color: rgba(196, 154, 108, 0.28);
  line-height: 1;
}

.process-step .step-icon {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.process-step h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--color-primary-dark);
  padding: 88px 0;
  text-align: center;
  position: relative;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 1px;
  background: var(--color-accent);
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 18px;
  color: rgba(255,255,255,0.72);
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.cta-contact {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
}

.cta-contact span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cta-contact a {
  color: rgba(255,255,255,0.55);
}

.cta-contact a:hover {
  color: #ffffff;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-footer-bg);
  color: rgba(255,255,255,0.68);
  padding: 64px 0 32px;
}

.footer-subscribe {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.footer-subscribe p {
  font-size: 14px;
  color: rgba(255,255,255,0.68);
}

.subscribe-form {
  display: flex;
  gap: 10px;
  width: 420px;
  max-width: 100%;
}

.subscribe-form input {
  flex: 1;
  height: 40px;
  padding: 0 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 6px;
  color: #ffffff;
  font-size: 14px;
  transition: border-color 0.2s ease;
}

.subscribe-form input:focus {
  border-color: var(--color-accent);
  outline: none;
}

.subscribe-form input::placeholder {
  color: rgba(255,255,255,0.4);
}

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

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-brand .brand-logo {
  width: 36px;
  height: 36px;
  font-size: 13px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero {
    padding: 64px 0;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-figure .img-wrap {
    aspect-ratio: 16 / 9;
  }

  .fig-card {
    bottom: -20px;
    left: 12px;
  }

  .nav-links {
    position: fixed;
    top: 48px;
    left: 0;
    width: 100%;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    z-index: 99;
  }

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

  .nav-links li a {
    display: block;
    padding: 14px 12px;
    font-size: 16px;
    border-radius: var(--radius-md);
  }

  .nav-links li a:hover {
    background: var(--color-bg);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links a.active {
    background: var(--color-primary);
    color: #ffffff;
  }

  .nav-toggle {
    display: flex;
  }

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

  .faq-nav {
    position: static;
  }

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

@media (max-width: 768px) {
  :root {
    --section-gap: 64px;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .metric-item .num {
    font-size: 24px;
  }

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

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

  .section-head h2 {
    font-size: 24px;
  }

  .fig-card {
    position: static;
    margin-top: 16px;
    box-shadow: var(--shadow-sm);
  }

  .faq-q {
    padding: 18px 20px;
    font-size: 14px;
  }

  .faq-a-inner {
    padding: 14px 20px 20px;
  }

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

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

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

  .subscribe-form {
    width: 100%;
  }

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

  .cta-section p {
    font-size: 16px;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .topbar-links {
    gap: 12px;
  }

  .topbar-links a {
    font-size: 12px;
  }

  .brand-text {
    font-size: 16px;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding: 48px 0;
  }

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

  .hero-actions {
    flex-direction: column;
  }

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

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

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

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

  .faq-nav {
    padding: 20px;
  }

  .faq-nav-list a {
    font-size: 13px;
    padding: 6px 10px;
  }

  .cta-actions {
    flex-direction: column;
  }

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

/* roulang page: category2 */
:root {
    --color-bg: #F7F5F0;
    --color-surface: #FFFFFF;
    --color-primary: #15362F;
    --color-primary-light: #2B4F46;
    --color-primary-dark: #0F2620;
    --color-accent: #E8A458;
    --color-accent-hover: #F0B877;
    --color-gold: #C49A6C;
    --color-text: #1C1C1A;
    --color-text-muted: #6B6B66;
    --color-border: #E4E0D8;
    --color-footer-bg: #0F2620;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 4px rgba(28,28,26,0.06);
    --shadow-md: 0 4px 16px rgba(28,28,26,0.08);
    --shadow-lg: 0 12px 40px rgba(28,28,26,0.10);
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
    --container: 1200px;
    --section-gap: 96px;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
  body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
  ul { list-style: none; }
  button, input { font: inherit; border: none; background: none; }

  a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }

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

  /* ===== Topbar ===== */
  .topbar {
    background: var(--color-primary-dark);
    color: rgba(255,255,255,0.72);
    font-size: 13px;
    height: 48px;
  }
  .topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
  .topbar-domain { letter-spacing: 0.02em; }
  .topbar-links a { color: rgba(255,255,255,0.72); margin-left: 24px; }
  .topbar-links a:hover { color: #fff; }

  /* ===== Navbar ===== */
  .navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
  }
  .navbar-inner { display: flex; align-items: center; gap: 24px; height: 72px; }
  .brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .brand-logo {
    width: 40px; height: 40px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-md);
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 16px; letter-spacing: 0.02em;
  }
  .brand-text { font-size: 20px; font-weight: 700; color: var(--color-primary); letter-spacing: -0.01em; }
  .nav-links { display: flex; align-items: center; gap: 4px; margin: 0 auto; }
  .nav-links a {
    display: block;
    padding: 8px 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    position: relative;
    transition: color 0.2s ease, background 0.2s ease;
  }
  .nav-links a:hover { color: var(--color-primary); background: rgba(21,54,47,0.04); }
  .nav-links a.active { color: var(--color-primary); font-weight: 600; }
  .nav-links a.active::after {
    content: "";
    position: absolute;
    left: 14px; right: 14px; bottom: 2px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
  }
  .nav-cta {
    height: 40px;
    padding: 0 24px;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
  }
  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 40px; height: 40px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--radius-md);
  }
  .nav-toggle span { width: 20px; height: 2px; background: var(--color-primary); border-radius: 2px; transition: all 0.25s ease; }
  .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

  /* ===== Buttons ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    gap: 8px;
    line-height: 1;
    transition: all 0.2s ease;
    white-space: nowrap;
  }
  .btn-primary { background: var(--color-accent); color: var(--color-text); height: 48px; padding: 0 28px; font-size: 15px; }
  .btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
  .btn-outline { background: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-primary); height: 48px; padding: 0 28px; font-size: 15px; }
  .btn-outline:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }
  .btn-light { background: transparent; border: 1px solid rgba(255,255,255,0.6); color: #fff; height: 48px; padding: 0 28px; font-size: 15px; }
  .btn-light:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
  .btn-accent { background: var(--color-accent); color: var(--color-text); height: 40px; padding: 0 20px; font-size: 14px; }
  .btn-accent:hover { background: var(--color-accent-hover); }

  /* ===== Page Banner ===== */
  .page-banner { background: var(--color-bg); padding: 64px 0 0; }
  .banner-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
  .breadcrumb { font-size: 14px; color: var(--color-text-muted); margin-bottom: 16px; }
  .breadcrumb a:hover { color: var(--color-primary); }
  .breadcrumb-sep { margin: 0 8px; color: var(--color-border); }
  .page-banner h1 {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-primary);
    margin-bottom: 20px;
  }
  .banner-desc { font-size: 16px; line-height: 1.8; color: var(--color-text-muted); max-width: 520px; }
  .banner-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); aspect-ratio: 16 / 10; object-fit: cover; }

  /* ===== Timeline Section ===== */
  .timeline-section { padding: var(--section-gap) 0; background: var(--color-surface); }
  .section-head { max-width: 640px; margin-bottom: 56px; }
  .eyebrow { font-size: 13px; letter-spacing: 0.08em; color: var(--color-gold); font-weight: 600; }
  .section-head h2 { font-size: 32px; font-weight: 650; letter-spacing: -0.01em; color: var(--color-primary); margin: 10px 0 12px; }
  .section-head p { font-size: 15px; color: var(--color-text-muted); line-height: 1.8; }

  .timeline { position: relative; max-width: 900px; margin: 0 auto; }
  .timeline::before {
    content: "";
    position: absolute;
    left: 220px; top: 0; bottom: 0;
    width: 2px;
    background: var(--color-border);
  }
  .timeline-item { position: relative; padding-left: 260px; margin-bottom: 40px; }
  .timeline-dot {
    position: absolute;
    left: 212px; top: 30px;
    width: 18px; height: 18px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 4px solid #fff;
    box-shadow: 0 0 0 2px var(--color-accent);
  }
  .timeline-date {
    position: absolute;
    left: 0; top: 26px;
    width: 190px;
    text-align: right;
    padding-right: 24px;
    font-size: 14px;
    color: var(--color-text-muted);
    font-variant-numeric: tabular-nums;
  }
  .timeline-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
  }
  .timeline-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
  .version-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
  .version-tag { font-size: 20px; font-weight: 700; color: var(--color-primary); letter-spacing: -0.01em; }
  .version-type {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(21,54,47,0.08);
    padding: 4px 10px;
    border-radius: 999px;
  }
  .timeline-card ul li {
    position: relative;
    padding-left: 18px;
    color: var(--color-text-muted);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 6px;
  }
  .timeline-card ul li::before {
    content: "";
    position: absolute;
    left: 0; top: 12px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--color-gold);
  }
  .timeline-card ul li strong { color: var(--color-text); font-weight: 600; }

  /* ===== Rhythm Section ===== */
  .rhythm-section { padding: var(--section-gap) 0; background: var(--color-bg); }
  .rhythm-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .rhythm-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  }
  .rhythm-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--color-primary-light); }
  .rhythm-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: rgba(21,54,47,0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 16px;
  }
  .rhythm-icon svg { width: 22px; height: 22px; }
  .rhythm-item h3 { font-size: 18px; font-weight: 600; color: var(--color-primary); margin-bottom: 8px; }
  .rhythm-item p { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }

  /* ===== CTA ===== */
  .download-cta { background: var(--color-footer-bg); padding: var(--section-gap) 0; color: #fff; text-align: center; }
  .cta-line { width: 64px; height: 1px; background: var(--color-accent); margin: 0 auto 24px; }
  .download-cta h2 { font-size: 32px; font-weight: 650; color: #fff; margin-bottom: 12px; letter-spacing: -0.01em; }
  .download-cta p { color: rgba(255,255,255,0.7); font-size: 16px; margin-bottom: 32px; }
  .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
  .download-cta .btn { height: 56px; padding: 0 36px; font-size: 18px; }

  /* ===== Back Home ===== */
  .back-home { padding: 48px 0; background: var(--color-bg); text-align: center; }
  .back-home a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
  }
  .back-home a:hover { color: var(--color-accent-hover); }
  .back-home .arrow { font-size: 18px; line-height: 1; }

  /* ===== Footer ===== */
  .site-footer { background: var(--color-footer-bg); color: rgba(255,255,255,0.7); padding: 64px 0 32px; }
  .footer-subscribe {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    margin-bottom: 40px;
  }
  .footer-subscribe p { font-size: 14px; }
  .subscribe-form { display: flex; gap: 8px; }
  .subscribe-form input {
    width: 280px;
    height: 40px;
    background: #fff;
    border-radius: 6px;
    padding: 0 14px;
    font-size: 14px;
    color: var(--color-text);
    border: 1px solid rgba(255,255,255,0.2);
  }
  .subscribe-form input::placeholder { color: var(--color-text-muted); }
  .subscribe-form input:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
  .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
  .footer-brand .footer-logo {
    display: flex; align-items: center; gap: 10px;
    color: #fff; font-size: 18px; font-weight: 700;
    margin-bottom: 16px;
  }
  .footer-brand p { font-size: 14px; line-height: 1.7; max-width: 300px; }
  .footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
  .footer-col li { margin-bottom: 10px; }
  .footer-col a { font-size: 14px; color: rgba(255,255,255,0.6); }
  .footer-col a:hover { color: var(--color-accent); }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 13px;
    color: rgba(255,255,255,0.5);
  }

  /* ===== Responsive ===== */
  @media (max-width: 1023px) {
    .nav-toggle { display: flex; }
    .nav-links {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: var(--color-surface);
      flex-direction: column;
      align-items: stretch;
      padding: 16px 24px;
      border-bottom: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
      visibility: hidden;
      opacity: 0;
      transform: translateY(-8px);
      transition: all 0.25s ease;
    }
    .nav-links.open { visibility: visible; opacity: 1; transform: translateY(0); }
    .nav-links a { padding: 12px 14px; font-size: 16px; }
    .nav-links a.active::after { left: 14px; right: auto; width: 24px; bottom: 6px; }
    .nav-cta { display: none; }
  }
  @media (max-width: 900px) {
    .timeline::before { left: 8px; }
    .timeline-item { padding-left: 36px; }
    .timeline-date { position: static; width: auto; text-align: left; padding: 0 0 8px 0; font-size: 13px; font-variant-numeric: tabular-nums; }
    .timeline-dot { left: 0; top: 8px; }
  }
  @media (max-width: 768px) {
    .banner-inner { grid-template-columns: 1fr; gap: 32px; }
    .page-banner { padding: 40px 0 0; }
    .page-banner h1 { font-size: 32px; }
    .section-head h2 { font-size: 26px; }
    .rhythm-grid { grid-template-columns: 1fr; }
    .footer-subscribe { flex-direction: column; align-items: flex-start; }
    .subscribe-form { width: 100%; }
    .subscribe-form input { flex: 1; width: auto; }
    .footer-grid { grid-template-columns: 1fr 1fr; row-gap: 32px; }
    .download-cta h2 { font-size: 26px; }
    .download-cta .btn { height: 50px; padding: 0 28px; font-size: 16px; }
  }
  @media (max-width: 520px) {
    .container { padding: 0 16px; }
    .topbar-links a { margin-left: 16px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .timeline-card { padding: 20px; }
    .version-tag { font-size: 18px; }
    .cta-buttons { flex-direction: column; }
    .download-cta .btn { width: 100%; }
  }