/* roulang page: index */
:root {
  --primary: #1F4E46;
  --primary-dark: #153B36;
  --primary-light: #E8EFED;
  --accent: #C8974E;
  --accent-dark: #A97B3D;
  --bg: #F6F5F1;
  --card: #FFFFFF;
  --text: #202A2A;
  --text-muted: #5B6B68;
  --border: #DCE4E1;
  --radius-card: 16px;
  --radius-element: 8px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 36px rgba(0,0,0,0.10);
  --transition: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 15px;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

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

.container-custom {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

@media (max-width: 640px) {
  .container-custom {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* 导航 */
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
  height: 72px;
}

.nav-wrap.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}

.nav-logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  padding: 8px 16px;
  border-radius: var(--radius-element);
  transition: var(--transition);
}

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

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-element);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(31, 78, 70, 0.25);
}

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

.btn-primary:focus-visible {
  outline: 3px solid rgba(31, 78, 70, 0.35);
  outline-offset: 2px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 600;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-element);
  border: 1px solid var(--primary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200, 151, 78, 0.05);
}

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

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  height: 52px;
  padding: 0 32px;
  border-radius: var(--radius-element);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(200, 151, 78, 0.3);
  white-space: nowrap;
  position: relative;
}

.btn-cta::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  width: 10px;
  height: 10px;
  border-top: 2px solid rgba(255,255,255,0.6);
  border-left: 2px solid rgba(255,255,255,0.6);
  border-radius: 2px 0 0 0;
}

.btn-cta:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(200, 151, 78, 0.4);
}

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

.btn-cta:focus-visible {
  outline: 3px solid rgba(200, 151, 78, 0.4);
  outline-offset: 2px;
}

/* Hero */
.hero-section {
  position: relative;
  background: linear-gradient(to right, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 88px 0 120px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.32;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(21, 59, 54, 0.94) 0%, rgba(21, 59, 54, 0.72) 60%, rgba(31, 78, 70, 0.55) 100%);
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200, 151, 78, 0.15);
  border: 1px solid rgba(200, 151, 78, 0.4);
  color: #E8D5B5;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin-top: 24px;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

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

.hero-subtitle {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.88);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-image-wrap {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.12);
}

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

.hero-stats-divider {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 80px;
  padding-top: 32px;
}

.stat-item {
  text-align: center;
  padding: 16px 8px;
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.stat-number .suffix {
  font-size: 1.1rem;
  color: var(--accent);
  margin-left: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-top: 6px;
  letter-spacing: 0.02em;
}

/* 板块通用 */
.section-padding {
  padding: 88px 0;
}

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

.section-heading {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 60px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-muted);
}

/* 痛点区 */
.pain-card {
  background: var(--card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
}

.pain-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(31, 78, 70, 0.35);
}

.pain-card .pain-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 16px;
}

.pain-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.pain-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

/* 解决方案区 */
.solution-section {
  background: var(--primary-light);
}

.step-card {
  display: flex;
  gap: 24px;
  padding: 24px;
  background: var(--card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  transition: var(--transition);
  margin-bottom: 16px;
}

.step-card:hover {
  box-shadow: var(--shadow-hover);
}

.step-number {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.02em;
}

.step-card:nth-child(2n) .step-number {
  background: var(--accent);
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.step-content p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

.download-card {
  background: var(--card);
  border-radius: var(--radius-card);
  border: 2px solid rgba(31, 78, 70, 0.2);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  box-shadow: var(--shadow-card);
}

.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: rgba(31, 78, 70, 0.08);
  border: 1px solid rgba(31, 78, 70, 0.25);
  color: var(--primary);
  margin-right: 6px;
  margin-bottom: 6px;
}

.version-badge.important {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* 成果区 */
.result-section {
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}

.result-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(200, 151, 78, 0.08);
}

.result-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(200, 151, 78, 0.05);
}

.result-content {
  position: relative;
  z-index: 1;
}

.result-item {
  padding: 32px 24px;
  text-align: center;
  border-radius: var(--radius-card);
  transition: var(--transition);
}

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

.result-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.result-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}

.result-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
}

/* 证言区 */
.testimonial-card {
  background: var(--card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  padding: 28px 24px;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(31, 78, 70, 0.3);
}

.testimonial-stars {
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text);
  flex: 1;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-person {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* 资讯列表 */
.news-section {
  background: var(--card);
}

.news-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  transition: var(--transition);
}

.news-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
  transform: translateX(4px);
}

.news-item .news-cat {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.news-item .news-body {
  flex: 1;
  min-width: 0;
}

.news-item .news-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item .news-excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item .news-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}

.news-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  background: var(--bg);
  border-radius: var(--radius-card);
  border: 1px dashed var(--border);
}

/* FAQ */
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  font-family: inherit;
  transition: color 0.2s ease;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  transition: transform 0.3s ease, background 0.2s ease;
}

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

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.faq-item.open .faq-answer {
  display: block;
}

/* CTA 区 */
.cta-section {
  background: linear-gradient(135deg, #F0E9DD 0%, #EDE3D0 100%);
  position: relative;
  padding: 88px 0;
}

/* 页脚 */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 64px 0 24px;
}

.footer-logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
}

.footer-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-link {
  display: block;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  padding: 4px 0;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 48px;
  padding-top: 24px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

.footer-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-element);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.footer-cta-btn:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  padding: 16px 24px 24px;
  z-index: 99;
}

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

.mobile-menu .nav-link {
  display: block;
  padding: 12px 8px;
  font-size: 1rem;
}

.mobile-menu .btn-primary {
  width: 100%;
  margin-top: 12px;
}

.hamburger-btn {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  border-radius: var(--radius-element);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 1.3rem;
  transition: background 0.2s ease;
}

.hamburger-btn:hover {
  background: var(--primary-light);
}

/* 面包屑（文章页用） */
.breadcrumb {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 16px 0;
}

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

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

.breadcrumb .separator {
  margin: 0 8px;
  color: var(--border);
}

/* 文章正文 */
.article-body {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 16px;
  color: var(--text);
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 12px;
  color: var(--text);
}

.article-body p {
  margin-bottom: 0.75em;
  line-height: 1.9;
  color: rgba(32, 42, 42, 0.92);
}

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--accent);
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.1rem;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .hero-section {
    padding: 72px 0 96px;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none !important;
  }
  .hamburger-btn {
    display: flex;
  }
  .nav-cta-desktop {
    display: none !important;
  }
  .hero-title {
    font-size: 1.6rem;
  }
  .hero-subtitle {
    font-size: 0.95rem;
  }
  .hero-section {
    padding: 48px 0 72px;
  }
  .hero-image-wrap {
    margin-top: 32px;
  }
  .stat-number {
    font-size: 1.7rem;
  }
  .section-padding {
    padding: 56px 0;
  }
  .step-card {
    flex-direction: column;
    gap: 12px;
    padding: 20px;
  }
  .step-number {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }
  .download-card {
    margin-top: 32px;
    padding: 24px;
  }
  .result-item {
    margin-bottom: 16px;
  }
  .news-item {
    flex-direction: column;
    gap: 8px;
    padding: 16px 20px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .hero-title {
    font-size: 1.4rem;
  }
  .hero-subtitle {
    font-size: 0.88rem;
  }
  .btn-cta,
  .btn-primary {
    width: 100%;
  }
  .hero-badge {
    font-size: 0.72rem;
  }
  .section-title {
    font-size: 1.4rem;
  }
}

/* 滚动条优化 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* 焦点样式 */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(31, 78, 70, 0.35);
  outline-offset: 2px;
}

/* roulang page: category1 */
:root {
      --primary: #1F4E46;
      --primary-dark: #153B36;
      --primary-light: #E8EFED;
      --accent: #C8974E;
      --accent-dark: #A97B3D;
      --bg: #F6F5F1;
      --card: #FFFFFF;
      --text: #202A2A;
      --text-muted: #5B6B68;
      --border: #DCE4E1;
      --radius-lg: 16px;
      --radius-sm: 8px;
      --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.1);
      --container: 1200px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color .2s ease;
    }

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

    input,
    select,
    textarea {
      font-family: inherit;
    }

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

    .section-pad {
      padding: 88px 0;
    }

    @media (max-width: 768px) {
      .section-pad {
        padding: 56px 0;
      }
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 48px;
    }

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

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .06em;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 16px;
    }

    .section-title {
      font-size: 30px;
      font-weight: 800;
      line-height: 1.3;
      color: var(--text);
      letter-spacing: -0.01em;
    }

    .section-sub {
      margin-top: 12px;
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    @media (max-width: 768px) {
      .section-title {
        font-size: 24px;
      }
    }

    /* ========== 导航 ========== */
    .nav-wrap {
      position: sticky;
      top: 0;
      z-index: 100;
      height: 72px;
      background: rgba(255, 255, 255, 0.98);
      border-bottom: 1px solid transparent;
      transition: border-color .25s ease, box-shadow .25s ease;
    }

    .nav-wrap.scrolled {
      border-bottom-color: var(--border);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
    }

    .nav-logo {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.01em;
      line-height: 1.2;
      white-space: nowrap;
    }

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

    .nav-logo .accent-dot {
      color: var(--accent);
      font-weight: 800;
    }

    .desktop-nav {
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      padding: 9px 16px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      transition: all .2s ease;
      line-height: 1.4;
    }

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

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

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 24px;
      border-radius: var(--radius-sm);
      background: var(--primary);
      color: #ffffff;
      font-size: 15px;
      font-weight: 600;
      border: none;
      transition: all .2s ease;
      line-height: 1;
      white-space: nowrap;
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 8px 24px rgba(31, 78, 70, 0.25);
    }

    .btn-primary:active {
      transform: scale(0.97);
    }

    .btn-primary:focus-visible {
      outline: 3px solid rgba(200, 151, 78, 0.45);
      outline-offset: 2px;
    }

    .btn-outline {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.7);
      color: #ffffff;
    }

    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: transparent;
      box-shadow: none;
    }

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

    .btn-accent:hover {
      background: var(--accent-dark);
      box-shadow: 0 8px 24px rgba(200, 151, 78, 0.3);
    }

    .hamburger-btn {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--primary);
      transition: background .2s;
    }

    .hamburger-btn:hover {
      background: var(--primary-light);
    }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 99;
      background: #ffffff;
      padding: 32px 24px;
      flex-direction: column;
      gap: 8px;
      overflow-y: auto;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    }

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

    .mobile-menu .nav-link {
      font-size: 18px;
      padding: 16px 20px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .mobile-menu .btn-primary {
      margin-top: 16px;
      width: 100%;
    }

    @media (max-width: 767px) {
      .desktop-nav {
        display: none;
      }

      .nav-cta-desktop {
        display: none !important;
      }

      .hamburger-btn {
        display: inline-flex;
      }

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

    /* ========== Hero ========== */
    .category-hero {
      position: relative;
      background: var(--primary-dark);
      overflow: hidden;
      padding: 120px 0 100px;
    }

    .category-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
      opacity: 0.28;
    }

    .category-hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(21, 59, 54, 0.9) 0%, rgba(21, 59, 54, 0.65) 60%, rgba(21, 59, 54, 0.4) 100%);
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.35);
      color: #ffffff;
      font-size: 13px;
      font-weight: 500;
      letter-spacing: .04em;
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(6px);
      margin-bottom: 28px;
    }

    .hero-title {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.25;
      color: #ffffff;
      letter-spacing: -0.01em;
      max-width: 700px;
    }

    .hero-title .hero-accent {
      color: var(--accent);
    }

    .hero-sub {
      margin-top: 20px;
      font-size: 17px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.85);
      max-width: 560px;
    }

    .hero-actions {
      margin-top: 40px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .hero-note {
      margin-top: 32px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.55);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .hero-note i {
      color: var(--accent);
    }

    @media (max-width: 768px) {
      .category-hero {
        padding: 80px 0 64px;
      }

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

      .hero-sub {
        font-size: 15px;
      }
    }

    /* ========== 统计条 ========== */
    .stats-bar {
      background: #ffffff;
      border-bottom: 1px solid var(--border);
      padding: 28px 0;
    }

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

    .stat-item {
      text-align: center;
      padding: 8px 16px;
      border-right: 1px solid var(--border);
    }

    .stat-item:last-child {
      border-right: none;
    }

    .stat-num {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      letter-spacing: -0.02em;
    }

    .stat-num span {
      font-size: 18px;
      font-weight: 700;
      margin-left: 2px;
    }

    .stat-label {
      margin-top: 6px;
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    @media (max-width: 768px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }

      .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 12px 8px;
      }

      .stat-item:nth-child(3),
      .stat-item:nth-child(4) {
        border-bottom: none;
      }

      .stat-num {
        font-size: 26px;
      }
    }

    /* ========== 图文识别区 ========== */
    .identify-block {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: 1fr 1fr;
    }

    .identify-media {
      min-height: 380px;
      position: relative;
    }

    .identify-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
      inset: 0;
    }

    .identify-content {
      padding: 48px 48px 40px;
    }

    .identify-content h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 24px;
      line-height: 1.4;
    }

    .check-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .check-list li {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }

    .check-icon {
      flex: 0 0 40px;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 700;
    }

    .check-text {
      flex: 1;
    }

    .check-text strong {
      display: block;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 4px;
    }

    .check-text p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    @media (max-width: 768px) {
      .identify-block {
        grid-template-columns: 1fr;
      }

      .identify-media {
        min-height: 220px;
      }

      .identify-content {
        padding: 32px 24px;
      }
    }

    /* ========== 流程区 ========== */
    .flow-section {
      background: var(--primary-light);
    }

    .flow-wrap {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 64px;
      align-items: start;
    }

    .prep-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      padding: 40px 36px;
      position: relative;
    }

    .prep-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 36px;
      right: 36px;
      height: 3px;
      background: var(--accent);
      border-radius: 0 0 4px 4px;
    }

    .prep-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 28px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .prep-card h3 i {
      color: var(--accent);
      font-size: 18px;
    }

    .prep-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .prep-list li {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      padding-bottom: 20px;
      border-bottom: 1px dashed var(--border);
    }

    .prep-list li:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .prep-list .prep-num {
      flex: 0 0 26px;
      width: 26px;
      height: 26px;
      border-radius: 8px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .prep-list strong {
      display: block;
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 4px;
    }

    .prep-list p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .steps-list {
      display: flex;
      flex-direction: column;
      gap: 24px;
      counter-reset: step;
    }

    .step-item {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      padding: 32px 32px 28px;
      position: relative;
      transition: all .25s ease;
      display: flex;
      gap: 24px;
      align-items: flex-start;
    }

    .step-item:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .step-index {
      flex: 0 0 56px;
      width: 56px;
      height: 56px;
      border-radius: 14px;
      background: var(--primary);
      color: #ffffff;
      font-size: 20px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      letter-spacing: -0.02em;
    }

    .step-item:nth-child(2) .step-index {
      background: var(--accent);
    }

    .step-item:nth-child(3) .step-index {
      background: var(--primary);
    }

    .step-item:nth-child(4) .step-index {
      background: var(--accent);
    }

    .step-body h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 8px;
    }

    .step-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    @media (max-width: 768px) {
      .flow-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .step-item {
        padding: 24px 20px;
        gap: 16px;
      }

      .step-index {
        flex: 0 0 44px;
        width: 44px;
        height: 44px;
        font-size: 16px;
        border-radius: 12px;
      }
    }

    /* ========== 版本场景区 ========== */
    .version-scene {
      background: var(--primary-dark);
      position: relative;
      overflow: hidden;
    }

    .version-scene::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
      opacity: 0.12;
    }

    .version-scene .container-custom {
      position: relative;
      z-index: 2;
    }

    .version-scene .section-title {
      color: #ffffff;
    }

    .version-scene .section-sub {
      color: rgba(255, 255, 255, 0.7);
    }

    .version-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .version-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      transition: all .25s ease;
      backdrop-filter: blur(4px);
    }

    .version-card:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(200, 151, 78, 0.5);
      transform: translateY(-4px);
    }

    .version-card .ver-icon {
      width: 56px;
      height: 56px;
      border-radius: 14px;
      background: var(--accent);
      color: #ffffff;
      font-size: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 24px;
    }

    .version-card:nth-child(2) .ver-icon {
      background: #ffffff;
      color: var(--primary);
    }

    .version-card:nth-child(3) .ver-icon {
      background: var(--primary);
    }

    .version-card .ver-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 999px;
      background: rgba(200, 151, 78, 0.2);
      color: var(--accent);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .04em;
      margin-bottom: 16px;
    }

    .version-card h4 {
      font-size: 19px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .version-card p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.75);
      line-height: 1.75;
    }

    @media (max-width: 768px) {
      .version-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }
    }

    /* ========== 使用场景横条 ========== */
    .scene-strip {
      background: #ffffff;
    }

    .scene-item {
      display: grid;
      grid-template-columns: 48px 1fr 60px;
      gap: 24px;
      align-items: center;
      padding: 28px 0;
      border-bottom: 1px solid var(--border);
      transition: padding-left .3s ease;
    }

    .scene-item:hover {
      padding-left: 12px;
    }

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

    .scene-num {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 18px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .scene-text h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 4px;
    }

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

    .scene-arrow {
      color: var(--accent);
      font-size: 20px;
      text-align: right;
    }

    @media (max-width: 768px) {
      .scene-item {
        grid-template-columns: 40px 1fr 24px;
        gap: 16px;
        padding: 20px 0;
      }

      .scene-num {
        width: 40px;
        height: 40px;
        font-size: 15px;
      }
    }

    /* ========== FAQ ========== */
    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color .25s ease, box-shadow .25s ease;
    }

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

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 24px;
      padding: 22px 28px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      text-align: left;
      background: transparent;
      transition: color .2s;
    }

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

    .faq-icon {
      flex: 0 0 28px;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 16px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: transform .3s ease, background .3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease;
    }

    .faq-answer-inner {
      padding: 4px 28px 24px;
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      background: var(--primary-light);
      border-top: 1px solid rgba(31, 78, 70, 0.08);
      border-radius: 0 0 12px 12px;
    }

    @media (max-width: 768px) {
      .faq-question {
        padding: 18px 20px;
        font-size: 15px;
      }

      .faq-answer-inner {
        padding: 2px 20px 20px;
      }
    }

    /* ========== CTA ========== */
    .cta-section {
      background: var(--primary-light);
      position: relative;
      overflow: hidden;
    }

    .cta-card {
      background: var(--primary);
      border-radius: 24px;
      padding: 72px 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--accent);
    }

    .cta-card h2 {
      font-size: 32px;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .cta-card p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 560px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

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

    @media (max-width: 768px) {
      .cta-card {
        padding: 48px 24px;
        border-radius: 16px;
      }

      .cta-card h2 {
        font-size: 24px;
      }
    }

    /* ========== 页脚 ========== */
    .footer {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.8);
      padding: 64px 0 0;
      font-size: 15px;
    }

    .footer-logo {
      font-size: 20px;
      font-weight: 800;
      color: #ffffff;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
    }

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

    .footer-desc {
      font-size: 14px;
      line-height: 1.75;
      color: rgba(255, 255, 255, 0.6);
    }

    .footer-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 20px;
      border-radius: 8px;
      border: 1px solid var(--accent);
      color: var(--accent);
      font-size: 14px;
      font-weight: 600;
      transition: all .2s ease;
    }

    .footer-cta-btn:hover {
      background: var(--accent);
      color: #ffffff;
    }

    .footer-title {
      font-size: 16px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }

    .footer-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    .footer-link {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px 0;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      transition: color .2s;
    }

    .footer-link i {
      font-size: 12px;
      color: var(--accent);
    }

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

    .footer-bottom {
      margin-top: 48px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding: 24px 0;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
    }

    @media (max-width: 768px) {
      .footer {
        padding: 48px 0 0;
      }

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

    /* ========== 通用辅助 ========== */
    .text-accent {
      color: var(--accent);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .04em;
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
    }

    .badge-accent {
      background: var(--accent);
      border-color: var(--accent);
      color: #ffffff;
    }

    .divider {
      height: 1px;
      background: var(--border);
      border: none;
    }

    @media (max-width: 1024px) {
      .container-custom {
        padding: 0 20px;
      }
    }

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

      .section-title {
        font-size: 22px;
      }

      .section-sub {
        font-size: 15px;
      }
    }

/* roulang page: article */
:root {
  --primary: #1F4E46;
  --primary-dark: #153B36;
  --primary-light: #E8EFED;
  --accent: #C8974E;
  --accent-dark: #A97B3D;
  --bg: #F6F5F1;
  --white: #FFFFFF;
  --text: #202A2A;
  --muted: #5B6B68;
  --border: #DCE4E1;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 36px rgba(0,0,0,0.1);
  --radius-lg: 16px;
  --radius-md: 8px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
img { display: block; max-width: 100%; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
ul, ol { padding: 0; }

.container-custom {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}
@media (max-width: 640px) {
  .container-custom { padding-left: 16px; padding-right: 16px; }
}

/* ===== 导航 ===== */
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(255,255,255,0.98);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  backdrop-filter: blur(8px);
}
.nav-wrap.scrolled {
  border-color: var(--border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.nav-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.nav-logo:hover { color: var(--primary); }
.text-accent { color: var(--accent); }
.accent-dot { color: var(--accent); }
.desktop-nav { gap: 2px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 999px;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.nav-link:hover { background: var(--primary-light); color: var(--primary); }
.nav-link.active { background: var(--primary); color: #fff; }
.nav-cta-desktop {
  height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(31,78,70,0.25);
  transition: all 0.2s ease;
}
.nav-cta-desktop:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(31,78,70,0.3);
}
.hamburger-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.hamburger-btn:hover { border-color: var(--primary); color: var(--primary); }
.mobile-menu {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 16px 24px 24px;
  box-shadow: 0 24px 48px rgba(0,0,0,0.12);
  z-index: 99;
}
.mobile-menu.open { display: flex; flex-direction: column; gap: 6px; }
.mobile-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-radius: 10px;
  transition: all 0.2s ease;
}
.mobile-link:hover { background: var(--primary-light); color: var(--primary); }
@media (max-width: 1023px) {
  .desktop-nav { display: none !important; }
  .hamburger-btn { display: inline-flex; }
}
@media (min-width: 1024px) {
  .mobile-menu { display: none !important; }
}

/* ===== 通用按钮 ===== */
.btn-primary {
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  box-shadow: 0 4px 14px rgba(31,78,70,0.18);
  transition: all 0.2s ease;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; box-shadow: 0 8px 22px rgba(31,78,70,0.26); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.98); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  background: transparent;
  transition: all 0.2s ease;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: rgba(200,151,78,0.06);
}
.btn-outline:active { transform: scale(0.98); }

/* ===== 文章 Banner ===== */
.article-hero {
  position: relative;
  padding: 72px 0 150px;
  background-color: var(--primary-dark);
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(21,59,54,0.94) 0%, rgba(21,59,54,0.82) 40%, rgba(31,78,70,0.62) 100%);
}
.article-hero .container-custom { position: relative; z-index: 1; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 22px;
}
.breadcrumb a { color: #A8C5BE; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(255,255,255,0.4); }
.breadcrumb .current { color: rgba(255,255,255,0.85); }
.article-hero h1 {
  max-width: 900px;
  font-size: 36px;
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  font-size: 14px;
  color: rgba(255,255,255,0.8);
}
.chapter-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.14);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 13px;
}
.hero-date i { margin-right: 6px; }
@media (max-width: 767px) {
  .article-hero { padding: 56px 0 130px; }
  .article-hero h1 { font-size: 26px; }
}

/* ===== 文章正文卡片 ===== */
.article-section { position: relative; }
.article-card {
  max-width: 880px;
  margin: -70px auto 0;
  background: #fff;
  border-radius: 24px;
  padding: 48px 56px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(220,228,225,0.6);
}
.article-content {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}
.article-content > *:first-child { margin-top: 0; }
.article-content p { margin: 0 0 1.1em; }
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  margin: 1.8em 0 0.7em;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin: 1.5em 0 0.5em;
}
.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 1.3em 0 0.4em;
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.2em 1.4em;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 0.4em; }
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover { color: var(--accent-dark); }
.article-content img {
  border-radius: 16px;
  margin: 24px 0;
  box-shadow: var(--shadow-card);
}
.article-content blockquote {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 20px 0;
  color: var(--muted);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
}
.article-content th {
  background: var(--primary-light);
  text-align: left;
  padding: 12px 14px;
  color: var(--text);
  font-weight: 600;
}
.article-content td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.article-content pre {
  background: #203030;
  color: #E6F0EE;
  padding: 18px 20px;
  border-radius: 12px;
  overflow-x: auto;
  line-height: 1.6;
  margin: 20px 0;
}
.article-content code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 14px;
}
.article-content p code {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 2px 6px;
  border-radius: 6px;
}
.article-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  margin-top: 42px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
@media (max-width: 640px) {
  .article-nav-links { flex-direction: column; }
  .article-nav-links .btn-outline { justify-content: center; }
}

/* ===== 空状态 ===== */
.empty-state { text-align: center; padding: 50px 24px; }
.empty-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 34px;
}
.empty-state h2 { font-size: 26px; font-weight: 800; margin: 16px 0 8px; }
.empty-state p { color: var(--muted); max-width: 480px; margin: 0 auto; }

/* ===== 保障区 ===== */
.guarantee-section { padding: 100px 0; background: #fff; }
.guarantee-image {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.guarantee-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.guarantee-image:hover img { transform: scale(1.03); }
.tag-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  background: rgba(232,239,237,0.7);
  letter-spacing: 0.04em;
}
.guarantee-heading {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.35;
  margin: 14px 0 12px;
}
.guarantee-desc { color: var(--muted); font-size: 16px; line-height: 1.8; }
.guarantee-list {
  list-style: none;
  display: grid;
  gap: 14px;
  margin-top: 28px;
}
.guarantee-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.04);
  transition: all 0.2s ease;
}
.guarantee-list li:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
  background: #fff;
}
.guarantee-list i {
  color: var(--accent);
  font-size: 18px;
  margin-top: 3px;
  flex-shrink: 0;
}
.guarantee-list strong { display: block; font-size: 16px; color: var(--text); }
.guarantee-list span { color: var(--muted); font-size: 14px; line-height: 1.65; }

/* ===== FAQ ===== */
.faq-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #FFFFFF 0%, #F6F5F1 100%);
}
.section-header { margin-bottom: 52px; }
.section-header h2 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.35;
  margin: 14px 0 10px;
  color: var(--text);
}
.section-header p { color: var(--muted); max-width: 640px; margin: 0 auto; }
.faq-list { display: grid; gap: 14px; max-width: 900px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-item.active {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color 0.2s ease;
}
.faq-question:hover { color: var(--primary); }
.faq-question i {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer p {
  padding: 0 22px 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section { padding: 100px 0 110px; background: var(--bg); }
.cta-box {
  position: relative;
  background: linear-gradient(135deg, #1F4E46 0%, #153B36 100%);
  color: #fff;
  text-align: center;
  padding: 70px 32px;
  border-radius: 28px;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}
.cta-box > * { position: relative; z-index: 1; }
.cta-badge {
  display: inline-flex;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(200,151,78,0.16);
  color: #E5C89F;
  border: 1px solid rgba(200,151,78,0.4);
  font-size: 13px;
  letter-spacing: 0.06em;
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.35;
  margin: 18px 0 0;
}
.cta-box p {
  color: rgba(255,255,255,0.82);
  max-width: 600px;
  margin: 14px auto 30px;
  font-size: 16px;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 52px;
  padding: 0 30px;
  background: var(--accent);
  color: #fff;
  border-radius: 12px;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 8px 24px rgba(200,151,78,0.35);
  transition: all 0.2s ease;
}
.btn-cta:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 30px rgba(200,151,78,0.4); }
.btn-cta:active { transform: scale(0.98); }

/* ===== 页脚 ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.75);
  padding: 70px 0 0;
  border-top: 3px solid var(--accent);
}
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.01em;
}
.footer-desc {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
}
.footer-cta-btn {
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff !important;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 6px 18px rgba(200,151,78,0.3);
  transition: all 0.2s ease;
}
.footer-cta-btn:hover {
  background: var(--accent-dark);
  color: #fff !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(200,151,78,0.36);
}
.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-link {
  display: block;
  color: rgba(255,255,255,0.65);
  padding: 6px 0;
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-link:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 56px;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 18px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
@media (max-width: 640px) {
  .footer-bottom { flex-direction: column; justify-content: center; text-align: center; gap: 6px; }
}

/* ===== 响应式补充 ===== */
@media (max-width: 767px) {
  .article-card { padding: 30px 22px; margin-top: -52px; border-radius: 18px; }
  .article-hero h1 { font-size: 27px; }
  .guarantee-section { padding: 64px 0; }
  .faq-section { padding: 64px 0; }
  .cta-section { padding: 64px 0 70px; }
  .cta-box { padding: 48px 20px; border-radius: 22px; }
  .cta-box h2 { font-size: 26px; }
  .section-header h2, .guarantee-heading { font-size: 24px; }
  .guarantee-list li { padding: 16px; }
  .footer { padding-top: 50px; }
  .footer-bottom { margin-top: 40px; }
}

/* roulang page: category2 */
:root {
    --primary: #1F4E46;
    --primary-dark: #153B36;
    --primary-light: #E8EFED;
    --accent: #C8974E;
    --accent-dark: #A97B3D;
    --bg: #F6F5F1;
    --card: #FFFFFF;
    --text: #202A2A;
    --text-secondary: #5B6B68;
    --border: #DCE4E1;
    --radius-lg: 16px;
    --radius-sm: 8px;
    --shadow-card: 0 8px 30px rgba(0,0,0,0.06);
    --shadow-hover: 0 12px 36px rgba(0,0,0,0.10);
  }

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

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: var(--primary);
    text-decoration: none;
    transition: color .2s ease;
  }

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

  button {
    cursor: pointer;
    font-family: inherit;
  }

  .container-custom {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
  }

  .text-accent {
    color: var(--accent) !important;
  }

  .text-primary {
    color: var(--primary) !important;
  }

  .text-secondary {
    color: var(--text-secondary) !important;
  }

  /* ===== 按钮 ===== */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    border: none;
    height: 46px;
    padding: 0 26px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    transition: all .18s ease;
    white-space: nowrap;
  }

  .btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
  }

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

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    height: 46px;
    padding: 0 26px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    transition: all .18s ease;
  }

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

  .btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--accent);
    color: #fff;
    border: none;
    height: 50px;
    padding: 0 32px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 700;
    transition: all .18s ease;
    box-shadow: 0 4px 16px rgba(200,151,78,0.28);
  }

  .btn-cta:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(200,151,78,0.32);
  }

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

  /* ===== Header ===== */
  .nav-wrap {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(255,255,255,0.98);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: box-shadow .2s ease, border-color .2s ease;
  }

  .nav-wrap.scrolled {
    border-bottom-color: var(--border);
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  }

  .nav-logo {
    font-size: 19px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.01em;
    line-height: 1.2;
  }

  .accent-dot {
    color: var(--accent);
    font-weight: 700;
  }

  .desktop-nav .nav-link {
    display: inline-block;
    padding: 10px 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color .18s ease, background .18s ease;
  }

  .desktop-nav .nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
  }

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

  .nav-cta-desktop {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
  }

  .hamburger-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: 18px;
    transition: all .18s ease;
  }

  .hamburger-btn:hover {
    border-color: var(--primary);
    background: var(--primary-light);
  }

  .mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
    padding: 14px 20px 20px;
    z-index: 999;
    display: none;
    flex-direction: column;
    gap: 4px;
  }

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

  .mobile-menu-link {
    display: block;
    padding: 12px 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all .18s ease;
  }

  .mobile-menu-link:hover {
    color: var(--primary);
    background: var(--primary-light);
  }

  .mobile-menu-link.active {
    color: var(--primary);
    font-weight: 700;
    background: var(--primary-light);
  }

  .mobile-cta {
    margin-top: 12px;
    justify-content: center;
  }

  /* ===== Page Banner ===== */
  .cat-banner {
    position: relative;
    background-size: cover;
    background-position: center center;
    padding: 160px 0 90px;
    margin-top: 72px;
  }

  .cat-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(21,59,54,0.86);
    z-index: 1;
  }

  .cat-banner .container-custom {
    position: relative;
    z-index: 2;
  }

  .cat-banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 28px;
    letter-spacing: 0.04em;
  }

  .cat-banner h1 {
    font-size: 40px;
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 20px;
  }

  .cat-banner p {
    font-size: 18px;
    color: rgba(255,255,255,0.88);
    max-width: 640px;
    margin-bottom: 36px;
    line-height: 1.8;
  }

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

  .cat-breadcrumb {
    position: relative;
    z-index: 2;
    padding: 24px 0 0;
    margin-top: 72px;
    background: transparent;
  }

  .cat-breadcrumb .breadcrumb-inner {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    background: #fff;
    padding: 10px 18px;
    border-radius: 999px;
    box-shadow: var(--shadow-card);
    display: inline-flex;
  }

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

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

  .cat-breadcrumb .sep {
    color: var(--border);
  }

  .cat-breadcrumb .crumb-current {
    color: var(--primary);
    font-weight: 600;
  }

  /* ===== Stats ===== */
  .stats-bar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 28px 0;
  }

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

  .stat-item {
    text-align: center;
    padding: 12px 8px;
  }

  .stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
  }

  .stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 6px;
  }

  /* ===== Section ===== */
  .section-block {
    padding: 90px 0;
  }

  .section-head {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 52px;
  }

  .section-head .section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 16px;
    letter-spacing: 0.04em;
  }

  .section-head h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.3;
    margin-bottom: 14px;
  }

  .section-head p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.75;
  }

  /* ===== Tabs ===== */
  .tab-section {
    background: var(--bg);
    padding: 90px 0;
  }

  .tab-nav-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 52px;
    flex-wrap: wrap;
    gap: 10px;
  }

  .tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: 999px;
    transition: all .2s ease;
  }

  .tab-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
  }

  .tab-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 4px 14px rgba(31,78,70,0.25);
  }

  .tab-panel {
    display: none;
    animation: fadeUp .35s ease;
  }

  .tab-panel.active {
    display: block;
  }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .tab-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
  }

  .tab-card-img {
    min-height: 280px;
    background-size: cover;
    background-position: center;
    position: relative;
  }

  .tab-card-img-overlay {
    position: absolute;
    inset: 0;
    background: rgba(21,59,54,0.45);
  }

  .tab-card-content {
    padding: 44px 44px;
  }

  .tab-card-content .tab-version-badge {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 999px;
    letter-spacing: 0.06em;
    margin-bottom: 14px;
  }

  .tab-card-content h3 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 14px;
    line-height: 1.3;
  }

  .tab-card-content .tab-desc {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
  }

  .tab-feature-list {
    display: grid;
    gap: 10px;
    margin-bottom: 22px;
  }

  .tab-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text);
  }

  .tab-feature-item i {
    color: var(--primary);
    font-size: 15px;
    margin-top: 3px;
    flex-shrink: 0;
  }

  .tab-note {
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    font-size: 13px;
    color: var(--primary-dark);
    line-height: 1.7;
  }

  .tab-note i {
    margin-right: 6px;
  }

  /* ===== Matrix ===== */
  .matrix-section {
    background: #fff;
    padding: 90px 0;
  }

  .matrix-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }

  .matrix-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: all .2s ease;
  }

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

  .matrix-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 18px;
  }

  .matrix-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
  }

  .matrix-card ul {
    list-style: none;
    display: grid;
    gap: 8px;
  }

  .matrix-card ul li {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 6px;
    line-height: 1.6;
  }

  .matrix-card ul li i {
    color: var(--accent);
    font-size: 12px;
    margin-top: 4px;
  }

  /* ===== Update Section ===== */
  .update-section {
    background: var(--bg);
    padding: 90px 0;
  }

  .update-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
  }

  .update-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
  }

  .update-img img {
    width: 100%;
    height: 320px;
    object-fit: cover;
  }

  .update-content h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 18px;
    line-height: 1.3;
  }

  .update-list {
    display: grid;
    gap: 18px;
    margin-bottom: 24px;
  }

  .update-list-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
  }

  .update-list-item .num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .update-list-item .num.gold {
    background: var(--accent);
  }

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

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

  /* ===== Advice ===== */
  .advice-section {
    background: #fff;
    padding: 90px 0;
  }

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

  .advice-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 32px 28px;
    transition: box-shadow .2s ease, transform .2s ease;
    position: relative;
    overflow: hidden;
  }

  .advice-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
  }

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

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

  .advice-card .advice-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #fff;
    color: var(--primary);
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    margin-bottom: 20px;
  }

  .advice-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
  }

  .advice-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
  }

  /* ===== FAQ ===== */
  .faq-section {
    background: var(--bg);
    padding: 90px 0;
  }

  .faq-wrap {
    max-width: 820px;
    margin: 0 auto;
    display: grid;
    gap: 14px;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
  }

  .faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-card);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    text-align: left;
    background: transparent;
    border: none;
    padding: 22px 26px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    transition: color .2s ease;
  }

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

  .faq-question .faq-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--primary);
    transition: all .25s ease;
  }

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

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }

  .faq-answer-inner {
    padding: 0 26px 22px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    border-top: 1px dashed var(--border);
    padding-top: 16px;
    margin-left: 26px;
    margin-right: 26px;
  }

  /* ===== CTA ===== */
  .cta-section {
    background: var(--primary-dark);
    padding: 90px 0;
    position: relative;
    overflow: hidden;
  }

  .cta-section::before {
    content: "";
    position: absolute;
    top: -60%;
    right: -20%;
    width: 480px;
    height: 480px;
    background: rgba(200,151,78,0.18);
    border-radius: 50%;
    filter: blur(80px);
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
  }

  .cta-inner h2 {
    font-size: 34px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.3;
  }

  .cta-inner p {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 36px;
  }

  /* ===== Footer ===== */
  .footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.72);
    padding: 70px 0 30px;
    font-size: 14px;
  }

  .footer-logo {
    font-size: 19px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
  }

  .footer-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.62);
    line-height: 1.75;
    margin-bottom: 16px;
  }

  .footer-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 14px;
    transition: all .18s ease;
  }

  .footer-cta-btn:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.2);
  }

  .footer-title {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
  }

  .footer-link {
    display: block;
    color: rgba(255,255,255,0.62);
    font-size: 14px;
    padding: 5px 0;
    transition: color .18s ease, padding-left .18s ease;
  }

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

  .footer-bottom {
    margin-top: 50px;
    padding-top: 22px;
    border-top: 1px solid rgba(255,255,255,0.12);
    font-size: 13px;
    color: rgba(255,255,255,0.5);
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
    }

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

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

    .tab-card {
      grid-template-columns: 1fr;
    }

    .tab-card-img {
      min-height: 220px;
    }

    .update-wrap {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 768px) {
    .desktop-nav {
      display: none !important;
    }

    .nav-cta-desktop {
      display: none !important;
    }

    .cat-banner {
      padding: 130px 0 60px;
    }

    .cat-banner h1 {
      font-size: 28px;
    }

    .cat-banner p {
      font-size: 16px;
    }

    .section-block,
    .tab-section,
    .matrix-section,
    .update-section,
    .advice-section,
    .faq-section,
    .cta-section {
      padding: 64px 0;
    }

    .section-head h2 {
      font-size: 25px;
    }

    .tab-btn {
      font-size: 14px;
      padding: 9px 16px;
    }

    .tab-card-content {
      padding: 28px 22px;
    }

    .tab-card-content h3 {
      font-size: 22px;
    }

    .matrix-grid,
    .advice-grid {
      grid-template-columns: 1fr;
    }

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

    .container-custom {
      padding: 0 18px;
    }

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

  @media (max-width: 520px) {
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .stat-number {
      font-size: 24px;
    }

    .cat-breadcrumb .breadcrumb-inner {
      font-size: 13px;
      padding: 8px 14px;
      display: inline-flex;
      border-radius: 14px;
    }

    .cat-banner-actions {
      flex-direction: column;
    }

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

    .cat-banner h1 {
      font-size: 24px;
    }

    .faq-question {
      padding: 18px 20px;
      font-size: 15px;
    }

    .faq-answer-inner {
      padding: 14px 20px 20px;
      margin-left: 20px;
      margin-right: 20px;
    }

    .nav-logo {
      font-size: 16px;
    }
  }