/* roulang page: index */
:root {
  --brand-dark: #0f2a3d;
  --brand-primary: #1e4d6b;
  --brand-light: #4f7d9e;
  --accent-gold: #d4a853;
  --accent-light: #e5cd92;
  --text-main: #1a2a3a;
  --text-weak: #6b7a88;
  --bg-soft: #f4f7fa;
  --bg-white: #ffffff;
  --border-soft: #e5eaf0;
  --radius-lg: 1rem;
  --radius-md: 0.75rem;
  --radius-sm: 0.5rem;
  --shadow-sm: 0 2px 10px rgba(15,42,61,0.06);
  --shadow-md: 0 6px 24px rgba(15,42,61,0.10);
  --shadow-lg: 0 12px 48px rgba(15,42,61,0.14);
  --transition-base: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

.container-page {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 1024px) {
  .container-page {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229, 234, 240, 0.7);
  box-shadow: 0 1px 12px rgba(15, 42, 61, 0.04);
  transition: var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(15, 42, 61, 0.08);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--brand-dark);
  position: relative;
}

.brand-logo .brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 4px 14px rgba(30, 77, 107, 0.3);
  flex-shrink: 0;
}

.brand-logo .brand-mark i {
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
}

.brand-logo .brand-text {
  background: linear-gradient(120deg, var(--brand-dark) 30%, var(--brand-primary) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.desktop-nav a {
  position: relative;
  padding: 0.5rem 0.25rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #44617a;
  transition: var(--transition-base);
}

.desktop-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s ease;
}

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

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

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

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

.mobile-tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-soft);
  box-shadow: 0 -4px 20px rgba(15, 42, 61, 0.06);
  padding: 0.4rem 0.5rem;
  padding-bottom: calc(0.4rem + env(safe-area-inset-bottom));
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  color: #8494a3;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.5rem 1.2rem;
  border-radius: 12px;
  transition: var(--transition-base);
}

.tab-item i {
  font-size: 1.15rem;
  display: block;
}

.tab-item.active {
  color: var(--brand-primary);
  background: rgba(30, 77, 107, 0.08);
}

.tab-item:hover {
  color: var(--brand-primary);
}

.tab-brand {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 4px 16px rgba(30, 77, 107, 0.35);
  border: 3px solid #fff;
  margin-top: -1rem;
}

@media (min-width: 768px) {
  .mobile-tab-bar {
    display: none;
  }
}

@media (max-width: 767px) {
  body {
    padding-bottom: 4.5rem;
  }
}

.hero-section {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 88vh;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6,19,29,0.88) 0%, rgba(15,42,61,0.72) 45%, rgba(30,77,107,0.55) 100%);
}

.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 70% 30%, rgba(212,168,83,0.15) 0%, transparent 60%);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 860px;
  padding: 4rem 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
  color: #f0e6d0;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin-top: 1.5rem;
  letter-spacing: -0.01em;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 620px;
  margin: 1.5rem auto 0;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold) 50%, #c4913a 100%);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 2rem;
  border-radius: 12px;
  box-shadow: 0 6px 24px rgba(196, 145, 58, 0.35);
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 36px rgba(196, 145, 58, 0.45);
}

.btn-primary:focus-visible {
  outline: 3px solid rgba(212, 168, 83, 0.6);
  outline-offset: 3px;
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
  border-radius: 12px;
  backdrop-filter: blur(8px);
  transition: var(--transition-base);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
  transform: translateY(-3px);
}

.btn-outline-light:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.5);
  outline-offset: 3px;
}

.section-padding {
  padding: 5rem 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 3.5rem 0;
  }
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--brand-dark);
  letter-spacing: -0.01em;
  text-align: center;
}

.section-subtitle {
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  color: var(--text-weak);
  text-align: center;
  margin-top: 0.75rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-gold);
  background: rgba(212, 168, 83, 0.1);
  border: 1px solid rgba(212, 168, 83, 0.25);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header .section-tag {
  display: inline-flex;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(229, 234, 240, 0.8);
  transition: var(--transition-base);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(212, 168, 83, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--brand-primary);
  background: rgba(30, 77, 107, 0.08);
  margin-bottom: 1.3rem;
  transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
  background: var(--brand-primary);
  color: #fff;
  box-shadow: 0 6px 20px rgba(30, 77, 107, 0.3);
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 0.6rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.7;
}

.category-entry {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  margin-bottom: 2rem;
}

.category-entry img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 240px;
  transition: transform 0.6s ease;
}

.category-entry:hover img {
  transform: scale(1.05);
}

.category-entry::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(6,19,29,0.88) 0%, rgba(15,42,61,0.55) 55%, transparent 100%);
  z-index: 1;
}

.category-entry .category-content {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem;
  max-width: 60%;
}

.category-entry .category-content .cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-light);
  background: rgba(212, 168, 83, 0.15);
  border: 1px solid rgba(212, 168, 83, 0.35);
  padding: 0.3rem 1rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  width: fit-content;
}

.category-entry .category-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.category-entry .category-content p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  margin-top: 0.85rem;
  line-height: 1.7;
  max-width: 420px;
}

.btn-category {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  background: var(--accent-gold);
  color: #fff;
  font-weight: 600;
  padding: 0.7rem 1.8rem;
  border-radius: 12px;
  font-size: 0.9rem;
  box-shadow: 0 4px 16px rgba(196, 145, 58, 0.35);
  transition: var(--transition-base);
  width: fit-content;
  border: none;
  cursor: pointer;
}

.btn-category:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196, 145, 58, 0.45);
  background: #c4913a;
}

@media (max-width: 640px) {
  .category-entry .category-content {
    max-width: 85%;
    padding: 1.8rem;
  }
}

.news-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  overflow: hidden;
  transition: var(--transition-base);
  height: 100%;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 168, 83, 0.3);
}

.news-card-body {
  display: flex;
  flex-direction: column;
  padding: 1.6rem;
  flex: 1;
}

.news-card .news-cat {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--brand-primary);
  background: rgba(30, 77, 107, 0.08);
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  width: fit-content;
  margin-bottom: 0.9rem;
  letter-spacing: 0.03em;
}

.news-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--brand-dark);
  line-height: 1.45;
  margin-bottom: 0.6rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition-base);
}

.news-card:hover h3 {
  color: var(--brand-primary);
}

.news-card p {
  font-size: 0.87rem;
  color: var(--text-weak);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 1rem;
  flex: 1;
}

.news-card .news-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #9aabb8;
  font-size: 0.78rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

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

.step-card {
  position: relative;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem 1.6rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  text-align: center;
  transition: var(--transition-base);
}

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

.step-number {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-dark));
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(30, 77, 107, 0.3);
}

.step-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 48px;
  height: 48px;
  margin: 0.6rem auto 1rem;
  border-radius: 14px;
  background: rgba(212, 168, 83, 0.12);
  color: var(--accent-gold);
  font-size: 1.2rem;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 0.4rem;
}

.step-card p {
  font-size: 0.82rem;
  color: var(--text-weak);
  line-height: 1.6;
}

.feature-img-card {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  position: relative;
  height: 100%;
  background: var(--brand-dark);
}

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

.feature-img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
  opacity: 0.9;
  transition: all 0.6s ease;
}

.feature-img-card:hover img {
  transform: scale(1.05);
  opacity: 0.85;
}

.feature-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 15, 24, 0.9) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
}

.feature-img-overlay h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.4rem;
}

.feature-img-overlay p {
  font-size: 0.87rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  max-width: 320px;
}

.stats-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  padding: 5rem 0;
}

.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6,19,29,0.92), rgba(15,42,61,0.85));
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

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

.stat-item {
  text-align: center;
  padding: 1.8rem 1rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(6px);
  transition: var(--transition-base);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.stat-value {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--accent-gold);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.4rem;
  font-weight: 500;
}

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition-base);
}

.faq-item:hover {
  border-color: rgba(212, 168, 83, 0.3);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.3rem 1.6rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--brand-dark);
  list-style: none;
  transition: var(--transition-base);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: '\f059';
  font-family: 'Font Awesome 6 Free';
  font-weight: 400;
  color: var(--accent-gold);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.75rem;
  color: var(--text-weak);
  margin-left: auto;
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item .faq-body {
  padding: 0 1.6rem 1.4rem 3.2rem;
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.75;
}

.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  border-radius: 24px;
  overflow: hidden;
  padding: 4rem 3rem;
  box-shadow: var(--shadow-lg);
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(6,19,29,0.92) 0%, rgba(15,42,61,0.75) 100%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
}

.cta-content p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.8rem;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.site-footer {
  background: #07141f;
  color: rgba(255, 255, 255, 0.6);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.footer-brand .brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-gold), #c4913a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 4px 12px rgba(196, 145, 58, 0.3);
}

.footer-desc {
  font-size: 0.87rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
}

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

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-base);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 3rem;
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: var(--accent-light);
}

.footer-bottom a:hover {
  text-decoration: underline;
}

.empty-list {
  text-align: center;
  padding: 3rem 1rem;
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  color: var(--text-weak);
  font-size: 1rem;
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --brand: #1e3a5f;
  --brand-dark: #142b47;
  --brand-light: #2d4a73;
  --gold: #c8a96a;
  --gold-light: #e0c88a;
  --bg-body: #f7f5f0;
  --bg-card: #ffffff;
  --text-main: #1e293b;
  --text-weak: #5b6b7f;
  --text-faint: #94a3b8;
  --border-soft: #e6e1d8;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 16px 40px -20px rgba(15,23,42,0.14);
  --shadow-hover: 0 28px 56px -22px rgba(15,23,42,0.24);
  --shadow-hero: 0 24px 50px -20px rgba(0,0,0,0.45);
  --transition: all .3s cubic-bezier(.4,0,.2,1);
}
/* ===== 基础 Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button, input { font-family: inherit; }
::selection { background: var(--gold); color: #fff; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
/* ===== 容器 ===== */
.container-page { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 24px; }
/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, var(--gold), #b8935a);
  color: #1a1a1a; font-weight: 600; font-size: 15px;
  padding: 14px 32px; border-radius: 999px; border: none;
  box-shadow: 0 12px 30px -10px rgba(200,169,106,0.55);
  cursor: pointer; transition: var(--transition);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 38px -12px rgba(200,169,106,0.68);
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
}
.btn-primary:active { transform: translateY(-1px) scale(.98); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
  color: #fff; font-weight: 500; font-size: 15px;
  padding: 14px 32px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.35);
  cursor: pointer; transition: var(--transition);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.6);
  transform: translateY(-3px);
}
.btn-ghost:active { transform: translateY(-1px) scale(.98); }
/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: 0 12px 30px -18px rgba(15,23,42,0.18); }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 18px;
  box-shadow: 0 8px 20px -8px rgba(30,58,95,0.5);
}
.desktop-nav {
  display: flex; align-items: center; gap: 8px;
  background: #f1efe9; border-radius: 999px; padding: 4px;
}
.desktop-nav a {
  padding: 9px 24px; border-radius: 999px;
  font-size: 15px; font-weight: 500; color: var(--text-weak);
  transition: var(--transition);
}
.desktop-nav a:hover { color: var(--brand); background: rgba(255,255,255,0.7); }
.desktop-nav a.active {
  background: var(--brand); color: #fff;
  box-shadow: 0 8px 20px -8px rgba(30,58,95,0.5);
}
/* ===== 移动端底部Tab ===== */
.mobile-bottom-tab {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 200;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-soft);
  box-shadow: 0 -10px 30px -18px rgba(15,23,42,0.2);
}
.mobile-bottom-tab .tab-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px; padding: 8px 0 6px;
  color: var(--text-faint); font-size: 11px;
  transition: var(--transition);
}
.mobile-bottom-tab .tab-item i { font-size: 18px; }
.mobile-bottom-tab .tab-item.active { color: var(--brand); }
.mobile-bottom-tab .tab-item.active i { color: var(--gold); }
.mobile-bottom-tab .tab-item:hover { color: var(--brand); }
.mobile-bottom-tab .tab-brand {
  width: 48px; height: 48px; border-radius: 16px;
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  display: flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 18px;
  box-shadow: 0 10px 24px -8px rgba(30,58,95,0.55);
  margin-top: -18px;
  border: 3px solid #fff;
}
@media (max-width: 767px) {
  .mobile-bottom-tab { display: block; }
  body { padding-bottom: 72px; }
}
/* ===== Hero ===== */
.hero-section {
  position: relative; min-height: 560px;
  display: flex; align-items: center;
  overflow: hidden;
  padding: 100px 0;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  z-index: 0;
}
.hero-section::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(20,43,71,0.92), rgba(20,43,71,0.55) 60%, rgba(20,43,71,0.32));
  z-index: 1;
}
.hero-section .container-page { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(200,169,106,0.15);
  border: 1px solid rgba(200,169,106,0.4);
  color: var(--gold-light);
  padding: 6px 18px; border-radius: 999px;
  font-size: 14px; font-weight: 500;
  backdrop-filter: blur(6px);
  margin-bottom: 24px;
}
.hero-section h1 {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800; color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-section .hero-lead {
  font-size: clamp(16px, 2vw, 19px);
  color: rgba(255,255,255,0.88);
  max-width: 680px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
/* ===== 板块通用 ===== */
.section-block { padding: 96px 0; }
.section-alt { background: #fff; border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.dark-section {
  background: linear-gradient(135deg, #142b47, #1e3a5f, #203f67);
  color: #fff; position: relative; overflow: hidden;
}
.dark-section::before {
  content: ''; position: absolute;
  width: 460px; height: 460px; border-radius: 50%;
  background: rgba(200,169,106,0.08);
  top: -180px; right: -120px;
}
.dark-section::after {
  content: ''; position: absolute;
  width: 320px; height: 320px; border-radius: 50%;
  background: rgba(255,255,255,0.04);
  bottom: -120px; left: -80px;
}
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block;
  background: rgba(200,169,106,0.14); color: var(--gold);
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 20px; border-radius: 999px;
  margin-bottom: 16px;
  border: 1px solid rgba(200,169,106,0.25);
}
.section-head h2 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800; color: var(--brand);
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: 14px;
}
.section-head p {
  font-size: 16px; color: var(--text-weak);
  line-height: 1.8;
}
/* ===== 特色卡片 ===== */
.feature-card {
  background: #fff; border-radius: var(--radius-lg);
  padding: 40px 32px; border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px; background: linear-gradient(90deg, var(--gold), var(--gold-light));
  opacity: 0; transition: opacity .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: linear-gradient(135deg, rgba(30,58,95,0.08), rgba(200,169,106,0.12));
  color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 24px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--brand), var(--brand-light));
  color: var(--gold); transform: rotate(-6deg) scale(1.05);
}
.feature-card h3 { font-size: 20px; font-weight: 700; color: var(--brand); margin-bottom: 12px; }
.feature-card p { font-size: 15px; color: var(--text-weak); line-height: 1.75; }
/* ===== 攻略分类卡片 ===== */
.guide-card {
  display: block; border-radius: var(--radius-lg);
  overflow: hidden; background: #fff;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
}
.guide-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.guide-card .guide-cover {
  position: relative; height: 220px; overflow: hidden;
}
.guide-card .guide-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.guide-card:hover .guide-cover img { transform: scale(1.08); }
.guide-card .guide-cover::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(20,43,71,0.45), transparent 55%);
}
.guide-tag {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(255,255,255,0.92); color: var(--brand);
  font-size: 12px; font-weight: 600;
  padding: 4px 14px; border-radius: 999px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.06);
}
.guide-card .guide-body { padding: 26px 24px 30px; }
.guide-card .guide-body h3 { font-size: 19px; font-weight: 700; color: var(--brand); margin-bottom: 10px; }
.guide-card .guide-body p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 18px; }
.guide-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--gold);
}
.guide-link i { transition: transform .3s; }
.guide-card:hover .guide-link i { transform: translateX(5px); }
/* ===== 数据排行卡片 ===== */
.rank-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; position: relative; z-index: 2; }
@media (max-width: 640px) { .rank-grid { grid-template-columns: 1fr; } }
.rank-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px 30px;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.rank-card:hover {
  background: rgba(255,255,255,0.11);
  border-color: rgba(200,169,106,0.35);
  transform: translateY(-4px);
}
.rank-card .rank-top { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.rank-num {
  font-size: 36px; font-weight: 800; color: var(--gold);
  font-style: italic; line-height: 1;
  opacity: 0.9;
}
.rank-card h3 { font-size: 18px; font-weight: 700; color: #fff; }
.rank-stats { display: flex; gap: 12px; flex-wrap: wrap; }
.rank-stat-item {
  background: rgba(255,255,255,0.08);
  padding: 8px 16px; border-radius: 999px;
  font-size: 13px; color: rgba(255,255,255,0.8);
}
.rank-stat-item strong { color: var(--gold-light); font-weight: 700; }
/* ===== 流程时间线 ===== */
.workflow-wrap { position: relative; max-width: 960px; margin: 0 auto; }
.workflow-wrap::before {
  content: ''; position: absolute; top: 0; bottom: 0; left: 50%;
  width: 2px; background: linear-gradient(to bottom, var(--gold), var(--border-soft));
  transform: translateX(-50%);
}
.workflow-step {
  display: flex; align-items: flex-start;
  position: relative; margin-bottom: 48px;
  gap: 32px;
}
.workflow-step:nth-child(odd) { flex-direction: row; }
.workflow-step:nth-child(even) { flex-direction: row-reverse; }
.workflow-step:last-child { margin-bottom: 0; }
.workflow-dot {
  position: absolute; left: 50%; top: 4px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--gold); border: 4px solid #fff;
  box-shadow: 0 0 0 3px rgba(200,169,106,0.35);
  transform: translateX(-50%);
  z-index: 2;
}
.workflow-card {
  width: calc(50% - 40px);
  background: #fff; border-radius: var(--radius-lg);
  padding: 28px 30px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-soft);
  transition: var(--transition);
}
.workflow-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.workflow-card .step-num { font-size: 13px; font-weight: 700; color: var(--gold); letter-spacing: 0.08em; margin-bottom: 6px; }
.workflow-card h3 { font-size: 19px; font-weight: 700; color: var(--brand); margin-bottom: 8px; }
.workflow-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
@media (max-width: 767px) {
  .workflow-wrap::before { left: 12px; }
  .workflow-step, .workflow-step:nth-child(odd), .workflow-step:nth-child(even) {
    flex-direction: column; gap: 8px; padding-left: 40px;
  }
  .workflow-dot { left: 12px; }
  .workflow-card { width: 100%; }
}
/* ===== 文章列表 ===== */
.article-card {
  display: flex; gap: 24px;
  background: #fff; border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
  padding: 20px;
  transition: var(--transition);
}
.article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.article-card .article-thumb {
  width: 200px; height: 140px; border-radius: var(--radius-md);
  overflow: hidden; flex-shrink: 0;
}
.article-card .article-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.article-card:hover .article-thumb img { transform: scale(1.07); }
.article-body { flex: 1; padding-top: 4px; }
.article-body .article-meta {
  display: flex; gap: 16px; align-items: center;
  font-size: 13px; color: var(--text-faint); margin-bottom: 10px;
}
.article-body h3 { font-size: 19px; font-weight: 700; color: var(--brand); margin-bottom: 8px; line-height: 1.45; }
.article-body p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
@media (max-width: 767px) {
  .article-card { flex-direction: column; padding: 18px; }
  .article-card .article-thumb { width: 100%; height: 200px; }
}
/* ===== FAQ ===== */
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px; overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(200,169,106,0.4); }
.faq-question {
  display: flex; align-items: center; gap: 14px;
  padding: 22px 26px; cursor: pointer;
  font-size: 17px; font-weight: 600; color: var(--brand);
  user-select: none;
  transition: var(--transition);
}
.faq-question:hover { background: rgba(200,169,106,0.04); }
.faq-question .faq-icon {
  width: 34px; height: 34px; border-radius: 12px;
  background: rgba(200,169,106,0.12); color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(180deg); background: var(--gold); color: #fff; }
.faq-answer {
  padding: 0 26px 22px 74px;
  font-size: 15px; color: var(--text-weak); line-height: 1.8;
  display: none;
}
.faq-item.open .faq-answer { display: block; }
/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, #142b47, #1e3a5f);
  position: relative; overflow: hidden;
  text-align: center;
}
.cta-section::before {
  content: ''; position: absolute;
  width: 500px; height: 500px; border-radius: 50%;
  background: rgba(200,169,106,0.12);
  top: -250px; left: 50%; transform: translateX(-50%);
}
.cta-section .container-page { position: relative; z-index: 2; }
.cta-section h2 {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800; color: #fff;
  margin-bottom: 16px; letter-spacing: -0.01em;
}
.cta-section p {
  font-size: 17px; color: rgba(255,255,255,0.8);
  max-width: 520px; margin: 0 auto 36px; line-height: 1.8;
}
/* ===== Footer ===== */
.site-footer {
  background: #142b47; color: #a0afc0;
  padding: 64px 0 0;
}
.footer-brand { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-brand .brand-mark {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--gold), #b8935a);
  color: var(--brand-dark); font-size: 16px;
}
.footer-desc { font-size: 14px; line-height: 1.8; margin-bottom: 24px; }
.footer-title {
  font-size: 16px; font-weight: 700; color: #fff;
  margin-bottom: 18px; position: relative;
  padding-bottom: 12px;
}
.footer-title::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 34px; height: 3px; border-radius: 99px;
  background: var(--gold);
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a {
  color: #a0afc0; font-size: 14px;
  display: inline-flex; align-items: center; gap: 8px;
  transition: var(--transition);
}
.footer-links a i { font-size: 12px; color: var(--gold); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0; margin-top: 48px;
  text-align: center; font-size: 13px; color: #7e8fa0;
}
.footer-bottom a { color: var(--gold); }
.footer-bottom a:hover { text-decoration: underline; }
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section-block { padding: 80px 0; }
  .hero-section { min-height: 500px; }
}
@media (max-width: 767px) {
  .container-page { padding: 0 18px; }
  .section-block { padding: 64px 0; }
  .hero-section { min-height: 460px; padding: 80px 0; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-primary, .hero-actions .btn-ghost { justify-content: center; }
  .rank-grid { grid-template-columns: 1fr; }
  .section-head { margin-bottom: 40px; }
}
@media (max-width: 520px) {
  .hero-section h1 { font-size: 36px; }
  .feature-card { padding: 30px 22px; }
  .guide-card .guide-cover { height: 180px; }
  .workflow-card { padding: 22px 20px; }
}

/* roulang page: article */
:root {
        --brand: #0d9488;
        --brand-deep: #0f766e;
        --brand-dark: #115e59;
        --accent: #d97706;
        --bg: #f7f8fa;
        --surface: #ffffff;
        --text: #0f172a;
        --muted: #64748b;
        --border: #e8ecf1;
        --radius-lg: 20px;
        --radius-md: 16px;
        --shadow-card: 0 8px 28px rgba(15, 23, 42, .04);
        --shadow-hover: 0 20px 46px rgba(15, 23, 42, .10);
        --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: var(--font-sans);
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

    :focus-visible {
        outline: 3px solid rgba(13, 148, 136, .42);
        outline-offset: 2px;
        border-radius: 8px;
    }

    .container-page {
        width: 100%;
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    @media (min-width: 640px) {
        .container-page {
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(255, 255, 255, .86);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        transition: box-shadow .3s ease;
    }

    .site-header.scrolled {
        box-shadow: 0 10px 32px rgba(15, 23, 42, .06);
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: .65rem;
        font-weight: 800;
        letter-spacing: .02em;
        color: #0f172a;
        transition: opacity .25s;
    }

    .brand-logo:hover {
        opacity: .86;
    }

    .brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: linear-gradient(135deg, #0d9488, #115e59);
        color: #fff;
        font-size: 1.05rem;
        box-shadow: 0 8px 18px rgba(13, 148, 136, .25);
    }

    .desktop-nav {
        gap: 1.6rem;
        font-weight: 600;
    }

    .desktop-nav a {
        position: relative;
        padding: .5rem 0;
        color: #475569;
        transition: color .25s;
        font-size: .95rem;
    }

    .desktop-nav a::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 2px;
        background: var(--brand);
        border-radius: 2px;
        transition: width .25s;
    }

    .desktop-nav a:hover {
        color: #0f172a;
    }

    .desktop-nav a.active {
        color: var(--brand-deep);
    }

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

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: .55rem;
        padding: .8rem 1.55rem;
        border-radius: 12px;
        font-weight: 700;
        font-size: .95rem;
        line-height: 1.2;
        border: none;
        cursor: pointer;
        transition: all .25s ease;
    }

    .btn-primary {
        background: linear-gradient(135deg, #0d9488, #0f766e);
        color: #fff;
        box-shadow: 0 10px 24px rgba(13, 148, 136, .26);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 16px 32px rgba(13, 148, 136, .34);
    }

    .btn-light {
        background: #fff;
        color: #115e59;
        box-shadow: 0 10px 24px rgba(2, 6, 23, .08);
    }

    .btn-light:hover {
        transform: translateY(-2px);
        box-shadow: 0 16px 32px rgba(2, 6, 23, .12);
    }

    .btn-outline {
        border: 1px solid #cbd5e1;
        color: #334155;
        background: #fff;
    }

    .btn-outline:hover {
        border-color: var(--brand);
        color: var(--brand-deep);
        transform: translateY(-2px);
    }

    .card {
        background: var(--surface);
        border: 1px solid #edf1f6;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card);
        transition: transform .3s, box-shadow .3s, border-color .3s;
    }

    .card-hover:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-hover);
        border-color: #d5e5e2;
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        color: var(--brand);
        font-weight: 800;
        letter-spacing: .16em;
        font-size: .78rem;
        text-transform: uppercase;
        margin-bottom: .75rem;
    }

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

    .section-title {
        font-size: 2.2rem;
        font-weight: 800;
        line-height: 1.25;
        letter-spacing: -.01em;
        color: #0f172a;
        margin: 0 0 1rem;
    }

    .lead-text {
        color: var(--muted);
        font-size: 1.05rem;
        line-height: 1.8;
        max-width: 680px;
    }

    .article-hero {
        position: relative;
        padding: 4.2rem 0 5rem;
        color: #fff;
        overflow: hidden;
    }

    .hero-bg {
        position: absolute;
        inset: 0;
        background-size: cover;
        background-position: center;
    }

    .hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(120deg, rgba(5, 22, 26, .93) 0%, rgba(10, 77, 76, .84) 52%, rgba(7, 30, 34, .74) 100%);
    }

    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: .5rem;
        font-size: .9rem;
        color: rgba(255, 255, 255, .76);
        margin-bottom: 1.4rem;
    }

    .breadcrumb a {
        transition: color .25s;
    }

    .breadcrumb a:hover {
        color: #fff;
    }

    .breadcrumb .current {
        color: rgba(255, 255, 255, .95);
        max-width: 420px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: .5rem;
        background: rgba(245, 158, 11, .16);
        border: 1px solid rgba(245, 158, 11, .4);
        color: #fcd34d;
        padding: .42rem 1.05rem;
        border-radius: 999px;
        font-size: .8rem;
        font-weight: 700;
        backdrop-filter: blur(6px);
    }

    .hero-title {
        font-size: 3rem;
        line-height: 1.16;
        font-weight: 800;
        letter-spacing: -.02em;
        margin: 1.25rem 0 1.1rem;
        max-width: 960px;
    }

    .hero-desc {
        font-size: 1.1rem;
        color: rgba(255, 255, 255, .85);
        max-width: 720px;
        line-height: 1.85;
    }

    .meta-divider {
        display: flex;
        flex-wrap: wrap;
        gap: 1.25rem;
        margin-top: 1.6rem;
        color: rgba(255, 255, 255, .76);
        font-size: .92rem;
    }

    .meta-divider span {
        display: inline-flex;
        align-items: center;
        gap: .45rem;
    }

    @media (max-width: 768px) {
        .hero-title {
            font-size: 2.1rem;
        }
        .article-hero {
            padding: 3rem 0 3.5rem;
        }
        .hero-desc {
            font-size: 1rem;
        }
    }

    .article-section {
        padding: 4rem 0 4.5rem;
        position: relative;
    }

    .article-main-card {
        padding: 2.2rem;
        border-radius: var(--radius-lg);
        background: #fff;
        border: 1px solid #edf1f6;
        box-shadow: 0 12px 36px rgba(15, 23, 42, .05);
    }

    .article-cover {
        aspect-ratio: 16 / 9;
        width: 100%;
        object-fit: cover;
        border-radius: 16px;
        margin-bottom: 2rem;
        background: #e2e8f0;
    }

    .article-content {
        font-size: 1.02rem;
        line-height: 1.95;
        color: #1e293b;
        word-break: break-word;
    }

    .article-content h2 {
        font-size: 1.5rem;
        font-weight: 800;
        margin: 2rem 0 1rem;
        color: #0f172a;
    }

    .article-content h3 {
        font-size: 1.2rem;
        font-weight: 700;
        margin: 1.6rem 0 .8rem;
        color: #0f172a;
    }

    .article-content p {
        margin-bottom: 1.2rem;
    }

    .article-content ul {
        padding-left: 1.25rem;
        margin-bottom: 1.2rem;
    }

    .article-content li {
        margin-bottom: .5rem;
    }

    .article-content blockquote {
        border-left: 4px solid var(--brand);
        background: #f0fdfa;
        padding: 1rem 1.25rem;
        border-radius: 0 12px 12px 0;
        color: #134e4a;
        margin: 1.5rem 0;
    }

    .tag-row {
        display: flex;
        flex-wrap: wrap;
        gap: .6rem;
        margin-top: 2.2rem;
        padding-top: 1.5rem;
        border-top: 1px dashed #e2e8f0;
    }

    .tag {
        display: inline-flex;
        align-items: center;
        gap: .35rem;
        background: #f0fdfa;
        border: 1px solid #ccfbf1;
        color: #0f766e;
        font-size: .82rem;
        font-weight: 600;
        padding: .35rem .9rem;
        border-radius: 999px;
        transition: all .2s;
    }

    .tag:hover {
        background: #ccfbf1;
        border-color: #5eead4;
    }

    .empty-state {
        text-align: center;
        padding: 4rem 1.5rem;
    }

    .empty-state i {
        font-size: 2.8rem;
        color: var(--brand);
        background: rgba(13, 148, 136, .08);
        width: 92px;
        height: 92px;
        line-height: 92px;
        text-align: center;
        border-radius: 50%;
        margin-bottom: 1.4rem;
    }

    .empty-state h2 {
        font-size: 1.75rem;
        font-weight: 800;
        margin-bottom: .75rem;
        color: #0f172a;
    }

    .empty-state p {
        color: var(--muted);
        max-width: 420px;
        margin: 0 auto 1.6rem;
    }

    .aside-rail {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

    .rail-card {
        padding: 1.5rem;
        background: #fff;
        border: 1px solid #edf1f6;
        border-radius: 18px;
        box-shadow: 0 8px 28px rgba(15, 23, 42, .04);
    }

    .rail-card h3 {
        font-size: 1rem;
        font-weight: 800;
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        gap: .6rem;
        color: #0f172a;
    }

    .rail-card h3 i {
        color: var(--brand);
    }

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

    .rail-list li + li {
        margin-top: .7rem;
        border-top: 1px solid #f1f5f9;
        padding-top: .7rem;
    }

    .rail-list a {
        display: flex;
        align-items: center;
        gap: .6rem;
        color: #334155;
        font-size: .94rem;
        font-weight: 500;
        transition: all .25s;
    }

    .rail-list a i {
        color: #94a3b8;
        font-size: .8rem;
        transition: transform .25s, color .25s;
    }

    .rail-list a:hover {
        color: var(--brand-deep);
    }

    .rail-list a:hover i {
        transform: translateX(4px);
        color: var(--brand);
    }

    .stat-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: .7rem;
        text-align: center;
    }

    .stat-item strong {
        display: block;
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--brand-deep);
        line-height: 1.3;
    }

    .stat-item span {
        display: block;
        font-size: .8rem;
        color: var(--muted);
        margin-top: .2rem;
    }

    .keypoints-section {
        padding: 5rem 0;
        background: #fbfcfe;
        border-top: 1px solid #edf1f6;
        border-bottom: 1px solid #edf1f6;
    }

    .keypoint-card {
        padding: 1.8rem 1.6rem;
        height: 100%;
    }

    .keypoint-icon {
        width: 52px;
        height: 52px;
        border-radius: 14px;
        background: linear-gradient(135deg, #0d9488, #115e59);
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 1.3rem;
        box-shadow: 0 10px 22px rgba(13, 148, 136, .22);
        margin-bottom: 1.1rem;
    }

    .keypoint-card h3 {
        font-size: 1.15rem;
        font-weight: 800;
        color: #0f172a;
        margin-bottom: .6rem;
    }

    .keypoint-card p {
        color: var(--muted);
        font-size: .95rem;
        line-height: 1.8;
        margin: 0;
    }

    .related-section {
        padding: 5rem 0;
    }

    .cover-card {
        overflow: hidden;
        height: 100%;
    }

    .cover-card .cover-img-wrap {
        overflow: hidden;
        aspect-ratio: 3 / 2;
    }

    .cover-card img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s ease;
    }

    .cover-card:hover img {
        transform: scale(1.07);
    }

    .cover-body {
        padding: 1.4rem 1.5rem 1.6rem;
    }

    .cover-tag {
        display: inline-flex;
        align-items: center;
        gap: .4rem;
        background: #f0fdfa;
        color: var(--brand-deep);
        font-size: .78rem;
        font-weight: 700;
        padding: .3rem .85rem;
        border-radius: 999px;
        border: 1px solid #ccfbf1;
        margin-bottom: .8rem;
    }

    .cover-body h3 {
        font-size: 1.15rem;
        font-weight: 800;
        color: #0f172a;
        margin-bottom: .55rem;
        line-height: 1.4;
    }

    .cover-body p {
        color: var(--muted);
        font-size: .92rem;
        line-height: 1.75;
        margin-bottom: 1rem;
    }

    .text-link {
        display: inline-flex;
        align-items: center;
        gap: .4rem;
        color: var(--brand-deep);
        font-weight: 700;
        font-size: .92rem;
        transition: gap .25s;
    }

    .text-link:hover {
        gap: .65rem;
        color: var(--brand);
    }

    .faq-section {
        padding: 5rem 0;
        background: #fbfcfe;
        border-top: 1px solid #edf1f6;
    }

    .faq-item {
        background: #fff;
        border: 1px solid #edf1f6;
        border-radius: 16px;
        padding: 1.25rem 1.5rem;
        margin-bottom: 1rem;
        box-shadow: 0 4px 16px rgba(15, 23, 42, .03);
        transition: border-color .25s, box-shadow .25s;
    }

    .faq-item:hover {
        border-color: #ccfbf1;
        box-shadow: 0 8px 24px rgba(13, 148, 136, .08);
    }

    .faq-item summary {
        font-weight: 700;
        font-size: 1.02rem;
        color: #0f172a;
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 1rem;
        cursor: pointer;
    }

    .faq-item summary::-webkit-details-marker {
        display: none;
    }

    .faq-item summary::after {
        content: "\f078";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        color: var(--brand);
        transition: transform .3s;
        flex-shrink: 0;
    }

    .faq-item[open] summary::after {
        transform: rotate(180deg);
    }

    .faq-answer {
        padding-top: 1rem;
        color: var(--muted);
        line-height: 1.85;
        font-size: .96rem;
    }

    .cta-section {
        position: relative;
        padding: 5.5rem 0;
        overflow: hidden;
        text-align: center;
    }

    .cta-bg {
        position: absolute;
        inset: 0;
        background-size: cover;
        background-position: center;
    }

    .cta-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(4, 28, 32, .95), rgba(10, 90, 82, .88));
    }

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

    .cta-title {
        font-size: 2.4rem;
        font-weight: 800;
        color: #fff;
        margin: 0 0 1.1rem;
        letter-spacing: -.01em;
    }

    .cta-desc {
        color: rgba(255, 255, 255, .88);
        max-width: 640px;
        margin: 0 auto 2rem;
        font-size: 1.06rem;
        line-height: 1.85;
    }

    @media (max-width: 640px) {
        .cta-title {
            font-size: 1.8rem;
        }
        .cta-desc {
            font-size: .98rem;
        }
    }

    .site-footer {
        background: #0b1220;
        color: #94a3b8;
        padding: 4rem 0 1.5rem;
    }

    .footer-brand {
        display: flex;
        align-items: center;
        gap: .65rem;
        font-weight: 800;
        color: #fff;
        font-size: 1.15rem;
        margin-bottom: 1rem;
    }

    .footer-desc {
        margin: 0;
        color: #94a3b8;
        line-height: 1.8;
        font-size: .95rem;
        max-width: 320px;
    }

    .footer-title {
        color: #fff;
        font-size: 1rem;
        font-weight: 700;
        margin-bottom: 1rem;
        letter-spacing: .02em;
    }

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

    .footer-links li {
        margin-bottom: .6rem;
    }

    .footer-links a {
        color: #94a3b8;
        font-size: .95rem;
        display: inline-flex;
        align-items: center;
        gap: .4rem;
        transition: all .25s;
    }

    .footer-links a:hover {
        color: #5eead4;
        padding-left: 4px;
    }

    .footer-bottom {
        border-top: 1px solid rgba(148, 163, 184, .15);
        margin-top: 2.8rem;
        padding-top: 1.5rem;
        text-align: center;
        font-size: .88rem;
        color: #64748b;
    }

    .footer-bottom a {
        color: #94a3b8;
        transition: color .25s;
    }

    .footer-bottom a:hover {
        color: #5eead4;
    }

    .mobile-tabbar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 60;
        display: flex;
        background: rgba(255, 255, 255, .92);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-top: 1px solid #e2e8f0;
        box-shadow: 0 -8px 24px rgba(15, 23, 42, .06);
        padding-bottom: env(safe-area-inset-bottom);
    }

    .tab-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: .3rem;
        padding: .8rem .25rem .62rem;
        color: #64748b;
        font-size: .72rem;
        font-weight: 600;
        line-height: 1;
        transition: color .25s, transform .25s;
    }

    .tab-item i {
        font-size: 1.25rem;
        transition: transform .25s;
    }

    .tab-item:hover {
        color: #0f766e;
    }

    .tab-item.active {
        color: #0f766e;
    }

    .tab-item.active i {
        transform: translateY(-2px);
    }

    @media (min-width: 768px) {
        .mobile-tabbar {
            display: none;
        }
    }

    @media (max-width: 767.98px) {
        body {
            padding-bottom: 64px;
        }
    }

    @media (max-width: 520px) {
        .section-title {
            font-size: 1.7rem;
        }
        .article-main-card {
            padding: 1.4rem;
        }
        .lead-text {
            font-size: .98rem;
        }
        .keypoints-section,
        .related-section,
        .faq-section {
            padding: 3.5rem 0;
        }
        .cta-section {
            padding: 4rem 0;
        }
        .stat-grid {
            gap: .4rem;
        }
        .stat-item strong {
            font-size: 1.2rem;
        }
    }