/* roulang page: index */
:root {
  --primary: #0b1f3a;
  --primary-deep: #071426;
  --accent: #f0522c;
  --accent-hover: #d8431f;
  --accent-light: #fff1ec;
  --bg: #f6f8fb;
  --bg-alt: #eef2f7;
  --card-bg: #ffffff;
  --text: #132033;
  --text-weak: #5b6b82;
  --text-light: #a9b6c7;
  --border: #e3e9f1;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(11, 31, 58, 0.06);
  --shadow-md: 0 10px 30px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 20px 50px rgba(11, 31, 58, 0.14);
  --space-section: 92px;
  --space-section-md: 64px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease;
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
input {
  font-family: inherit;
  font-size: inherit;
}
h1, h2, h3, h4, h5 {
  line-height: 1.25;
  color: var(--primary);
  font-weight: 700;
}
h1 { font-size: clamp(32px, 5vw, 56px); letter-spacing: -0.02em; }
h2 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.01em; }
h3 { font-size: 20px; }
p { color: var(--text); }
.container {
  width: min(1200px, 100% - 48px);
  margin: 0 auto;
}
.section {
  padding: var(--space-section) 0;
}
.section-alt {
  background: var(--bg-alt);
}
.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}
.section-head.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-tag {
  display: inline-block;
  padding: 5px 14px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  margin-bottom: 16px;
}
.section-head h2 {
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-weak);
  font-size: 16px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--accent) 0%, #ff7a4d 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(240, 82, 44, .28);
}
.brand-text {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.brand-text span {
  color: var(--accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border-radius: 999px;
  padding: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.main-nav::-webkit-scrollbar {
  display: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 7px 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  white-space: nowrap;
  transition: all .25s ease;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(11, 31, 58, .06);
}
.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(11, 31, 58, .2);
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(240, 82, 44, .3);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(240, 82, 44, .35);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(240, 82, 44, .3);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, .12);
}
.btn-light:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .16);
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, .7);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, .15);
  border-color: #fff;
  color: #fff;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all .3s ease;
}

/* Hero */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(7, 20, 38, .94) 0%, rgba(11, 31, 58, .82) 45%, rgba(11, 31, 58, .35) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  width: min(1200px, 100% - 48px);
  margin: 0 auto;
  padding: 120px 0;
  color: #fff;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .14);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, .25);
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 14px;
  color: #ffe2d8;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(240, 82, 44, .3);
}
.hero h1 {
  color: #fff;
  margin-bottom: 18px;
  max-width: 720px;
}
.hero h1 .highlight {
  color: var(--accent);
  position: relative;
}
.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .85);
  max-width: 600px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 56px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, .14);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, .18);
  overflow: hidden;
  max-width: 560px;
}
.stat-item {
  background: rgba(7, 20, 38, .72);
  padding: 20px 24px;
  backdrop-filter: blur(8px);
}
.stat-item strong {
  display: block;
  font-size: 28px;
  color: #fff;
  font-weight: 800;
  line-height: 1.2;
}
.stat-item span {
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
}

/* Ticker */
.ticker {
  background: var(--primary);
  color: #fff;
  overflow: hidden;
  position: relative;
}
.ticker-track {
  display: flex;
  gap: 48px;
  padding: 12px 0;
  white-space: nowrap;
  animation: ticker 30s linear infinite;
  width: max-content;
}
.ticker-track span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .82);
}
.ticker-track span::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
}
@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 24px;
  transition: all .3s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(240, 82, 44, .25);
}
.feature-card .fc-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 18px;
  aspect-ratio: 4/3;
}
.feature-card .fc-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.feature-card:hover .fc-img img {
  transform: scale(1.05);
}
.feature-card .fc-icon {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}
.feature-card h3 {
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}

/* Category / Guide Section */
.guide-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.cat-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 380px;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  transition: all .3s ease;
}
.cat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.cat-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.cat-card:hover img {
  transform: scale(1.04);
}
.cat-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 31, 58, .05) 40%, rgba(7, 20, 38, .88) 100%);
}
.cat-card-content {
  position: relative;
  z-index: 2;
  padding: 32px;
  color: #fff;
  width: 100%;
}
.cat-card-content .cat-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.cat-card-content h3 {
  color: #fff;
  font-size: 26px;
  margin-bottom: 8px;
}
.cat-card-content p {
  color: rgba(255, 255, 255, .8);
  font-size: 14px;
  margin-bottom: 20px;
  max-width: 360px;
}
.cat-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 15px;
  color: #fff;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .25);
  padding: 8px 20px;
  border-radius: 999px;
  transition: all .3s ease;
}
.cat-link:hover {
  background: var(--accent);
  border-color: var(--accent);
}
.mini-guide-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.mini-guide-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all .3s ease;
}
.mini-guide-item:hover {
  border-color: rgba(240, 82, 44, .35);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.mini-guide-item .mg-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
}
.mini-guide-item h4 {
  font-size: 16px;
  margin-bottom: 2px;
}
.mini-guide-item p {
  font-size: 13px;
  color: var(--text-weak);
}

/* News List */
.news-list-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
  gap: 16px;
  flex-wrap: wrap;
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.news-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all .3s ease;
  box-shadow: var(--shadow-sm);
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(240, 82, 44, .28);
}
.news-tag {
  align-self: flex-start;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 4px;
}
.news-card h3 {
  font-size: 17px;
  line-height: 1.5;
  color: var(--primary);
}
.news-card .news-excerpt {
  font-size: 14px;
  color: var(--text-weak);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  font-size: 13px;
  color: var(--text-light);
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.empty-tip {
  grid-column: 1 / -1;
  background: var(--card-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 48px;
  text-align: center;
  color: var(--text-weak);
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.step-item {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all .3s ease;
}
.step-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: var(--primary);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
}
.step-item:nth-child(2) .step-num { background: #1d4ed8; }
.step-item:nth-child(3) .step-num { background: var(--accent); }
.step-item:nth-child(4) .step-num { background: #0f766e; }
.step-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-weak);
}

/* FAQ */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all .3s ease;
}
.faq-item:hover {
  border-color: rgba(240, 82, 44, .3);
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  cursor: pointer;
  padding: 20px 24px;
  font-weight: 600;
  font-size: 16px;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
  transition: color .2s ease;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform .3s ease;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item .faq-body {
  padding: 0 24px 20px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
}

/* CTA */
.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(240, 82, 44, .92) 0%, rgba(216, 67, 31, .88) 100%);
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 72px 0;
  flex-wrap: wrap;
}
.cta-text h2 {
  color: #fff;
  font-size: clamp(26px, 3.4vw, 38px);
  margin-bottom: 12px;
}
.cta-text p {
  color: rgba(255, 255, 255, .9);
  font-size: 16px;
  max-width: 520px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-white {
  background: #fff;
  color: var(--accent);
}
.btn-white:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost-white {
  background: rgba(255, 255, 255, .16);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, .6);
}
.btn-ghost-white:hover {
  background: #fff;
  color: var(--accent);
}

/* Footer */
.site-footer {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, .75);
}
.footer-main {
  padding: 64px 0 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}
.footer-brand .brand-text {
  color: #fff;
  font-size: 22px;
  margin-bottom: 16px;
}
.footer-brand p {
  color: rgba(255, 255, 255, .65);
  font-size: 14px;
  line-height: 1.7;
  max-width: 360px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: rgba(255, 255, 255, .65);
  font-size: 14px;
  transition: color .2s ease;
}
.footer-col ul li a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
}
.footer-bottom a {
  color: rgba(255, 255, 255, .6);
}
.footer-bottom a:hover {
  color: #fff;
}

/* Focus accessibility */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(240, 82, 44, .5);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Responsive */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .guide-wrap {
    grid-template-columns: 1fr;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .section {
    padding: var(--space-section-md) 0;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    border-radius: 0;
    padding: 12px 24px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: 0 12px 30px rgba(11, 31, 58, .15);
    border-bottom: 1px solid var(--border);
  }
  .main-nav.open {
    display: flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-link {
    border-radius: var(--radius-sm);
    padding: 10px 14px;
  }
  .hero {
    min-height: 540px;
  }
  .hero-content {
    padding: 80px 0;
  }
  .hero-stats {
    grid-template-columns: 1fr;
  }
  .stat-item {
    padding: 14px 20px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
  .cta-text p {
    margin: 0 auto;
  }
  .cta-actions {
    justify-content: center;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (max-width: 520px) {
  .header-inner {
    height: 64px;
    gap: 12px;
  }
  .main-nav {
    top: 64px;
  }
  .brand-text {
    font-size: 18px;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 16px;
  }
  .header-cta .btn {
    padding: 8px 18px;
    font-size: 14px;
  }
  .feature-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .section-head {
    margin-bottom: 32px;
  }
  .cat-card {
    min-height: 320px;
  }
  .cat-card-content {
    padding: 20px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .news-card {
    padding: 18px;
  }
  .faq-item summary {
    font-size: 15px;
  }
  .cta-actions .btn {
    width: 100%;
  }
}

/* roulang page: article */
:root {
            --primary: #0052cc;
            --primary-dark: #003d99;
            --primary-light: #e6f0ff;
            --accent: #ff9f1c;
            --accent-hover: #f5920c;
            --bg-body: #f5f7fb;
            --bg-white: #ffffff;
            --bg-soft: #f0f4fa;
            --bg-dark: #0f1c2e;
            --bg-dark-light: #1a2a40;
            --text-main: #1a2433;
            --text-body: #3d4a5c;
            --text-weak: #7a8798;
            --text-white: #ffffff;
            --border: #e3e8ef;
            --border-dark: #c9d3df;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-full: 999px;
            --shadow-xs: 0 2px 6px rgba(16, 32, 54, 0.06);
            --shadow-sm: 0 4px 14px rgba(16, 32, 54, 0.08);
            --shadow-md: 0 10px 30px rgba(16, 32, 54, 0.1);
            --shadow-lg: 0 20px 50px rgba(16, 32, 54, 0.14);
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 56px;
            --space-xl: 80px;
            --container-w: 1200px;
            --header-h: 76px;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border-radius: var(--radius-full);
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(0, 82, 204, 0.28);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 82, 204, 0.36);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 82, 204, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(0, 82, 204, 0.4);
            outline-offset: 2px;
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 6px 18px rgba(0, 82, 204, 0.24);
        }

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

        .btn-outline:focus-visible {
            outline: 3px solid rgba(0, 82, 204, 0.35);
            outline-offset: 2px;
        }

        .btn-lg {
            padding: 16px 38px;
            font-size: 17px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 14px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-full);
            line-height: 1.5;
        }

        .badge-accent {
            background: #fff4e0;
            color: #d97e06;
        }

        .badge-soft {
            background: var(--bg-soft);
            color: var(--text-body);
            border: 1px solid var(--border);
        }

        .badge-dark {
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.24);
            backdrop-filter: blur(6px);
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 36px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-header p {
            color: var(--text-weak);
            font-size: 15px;
            margin-top: 8px;
            max-width: 520px;
        }

        .section-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            padding: 8px 4px;
            border-radius: 6px;
        }

        .section-more:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        .section-more i {
            font-size: 13px;
            transition: transform 0.25s ease;
        }

        .section-more:hover i {
            transform: translateX(4px);
        }

        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            overflow: hidden;
        }

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

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .tag-item:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }

        .tag-item i {
            font-size: 12px;
        }

        .site-header {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(16, 32, 54, 0.04);
        }

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

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

        .brand-mark {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, #2366e0 60%, #4c8df5 100%);
            color: #fff;
            border-radius: 10px;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
        }

        .brand-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            white-space: nowrap;
            line-height: 1.2;
        }

        .brand-text span {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-full);
            transition: all 0.25s ease;
            position: relative;
            white-space: nowrap;
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: var(--radius-full);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            cursor: pointer;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            transition: all 0.25s ease;
        }

        .nav-toggle:hover {
            background: var(--primary-light);
            border-color: rgba(0, 82, 204, 0.3);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-link:focus-visible,
        .brand:focus-visible,
        .header-cta a:focus-visible {
            outline: 3px solid rgba(0, 82, 204, 0.35);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .article-hero {
            position: relative;
            padding: 64px 0 48px;
            background: linear-gradient(135deg, #0a1420 0%, #10233c 60%, #193457 100%);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 560px;
            height: 560px;
            background: radial-gradient(circle, rgba(0, 82, 204, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -60%;
            left: 10%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(255, 159, 28, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
            max-width: 880px;
            text-align: center;
        }

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(4px);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .breadcrumb i {
            font-size: 11px;
        }

        .article-hero h1 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: -0.015em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        .article-hero .article-hero-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 22px;
        }

        .article-hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            background: rgba(255, 255, 255, 0.08);
            padding: 5px 14px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .article-hero-meta .meta-item i {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
        }

        .article-hero-hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.65);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .article-wrapper {
            padding: 56px 0 64px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
        }

        .article-main {
            min-width: 0;
        }

        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 48px;
            box-shadow: var(--shadow-sm);
        }

        .article-body-content {
            font-size: 16px;
            line-height: 2;
            color: var(--text-body);
        }

        .article-body-content p {
            margin-bottom: 20px;
        }

        .article-body-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin: 40px 0 18px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            border-radius: 2px;
            line-height: 1.4;
        }

        .article-body-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin: 32px 0 14px;
            line-height: 1.4;
        }

        .article-body-content ul,
        .article-body-content ol {
            margin: 0 0 20px;
            padding-left: 24px;
        }

        .article-body-content ul li {
            list-style: disc;
            margin-bottom: 8px;
            padding-left: 6px;
        }

        .article-body-content ol li {
            list-style: decimal;
            margin-bottom: 8px;
            padding-left: 6px;
        }

        .article-body-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(0, 82, 204, 0.35);
        }

        .article-body-content a:hover {
            color: var(--primary-dark);
            text-decoration-color: var(--primary-dark);
        }

        .article-body-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body-content blockquote {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 18px 24px;
            margin: 24px 0;
            font-style: normal;
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.8;
        }

        .article-body-content blockquote p {
            margin-bottom: 0;
        }

        .article-body-content code {
            background: var(--bg-soft);
            padding: 3px 10px;
            border-radius: 6px;
            font-family: "SF Mono", "Fira Code", monospace;
            font-size: 14px;
        }

        .article-divider {
            height: 1px;
            background: var(--border);
            margin: 44px 0 36px;
            position: relative;
        }

        .article-divider::after {
            content: '';
            position: absolute;
            top: -3px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 7px;
            background: var(--primary);
            border-radius: var(--radius-full);
            opacity: 0.8;
        }

        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .article-tags .label {
            font-weight: 600;
            color: var(--text-main);
        }

        .article-nav-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 32px;
        }

        .article-nav-card {
            background: var(--bg-soft);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 20px;
            transition: all 0.3s ease;
        }

        .article-nav-card:hover {
            background: var(--primary-light);
            border-color: rgba(0, 82, 204, 0.25);
            box-shadow: var(--shadow-xs);
        }

        .article-nav-card .dir-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 6px;
            text-transform: uppercase;
            letter-spacing: 0.06em;
        }

        .article-nav-card .dir-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 28px;
            box-shadow: var(--shadow-xs);
        }

        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg-soft);
            position: relative;
        }

        .sidebar-card h3::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .sidebar-info-list .info-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
        }

        .sidebar-info-list .info-row:last-child {
            border-bottom: none;
        }

        .sidebar-info-list .info-label {
            color: var(--text-weak);
            font-weight: 500;
        }

        .sidebar-info-list .info-value {
            color: var(--text-main);
            font-weight: 600;
        }

        .sidebar-recommend-list .recommend-item {
            display: flex;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }

        .sidebar-recommend-list .recommend-item:last-child {
            border-bottom: none;
        }

        .recommend-item .num {
            width: 28px;
            height: 28px;
            background: var(--bg-soft);
            border-radius: 8px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .recommend-item .rec-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s ease;
        }

        .recommend-item:hover .rec-title {
            color: var(--primary);
        }

        .recommend-item .rec-meta {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, #2366e0 100%);
            border: none;
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }

        .sidebar-cta::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.14) 0%, transparent 70%);
            border-radius: 50%;
        }

        .sidebar-cta h3 {
            color: var(--text-white);
            border-bottom-color: rgba(255, 255, 255, 0.2);
        }

        .sidebar-cta h3::after {
            background: var(--accent);
        }

        .sidebar-cta p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .sidebar-cta .btn-block {
            display: flex;
            width: 100%;
            justify-content: center;
            margin-bottom: 8px;
        }

        .related-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 64px 0;
        }

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

        .related-card {
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--bg-white);
            position: relative;
            transition: all 0.3s ease;
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
            border-color: transparent;
        }

        .related-card .article-thumb {
            aspect-ratio: 16/9;
            background: linear-gradient(135deg, #f0f4fa, #e8eef5);
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 16px;
            position: relative;
        }

        .related-card .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .related-card:hover .article-thumb img {
            transform: scale(1.05);
        }

        .related-card .related-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }

        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .related-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .related-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .related-meta i {
            font-size: 12px;
            color: var(--primary);
        }

        .faq-section {
            padding: 72px 0;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            max-width: 960px;
            margin: 0 auto;
        }

        .faq-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 28px;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }

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

        .faq-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .faq-card h3 .faq-icon {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

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

        .cta-section {
            background: linear-gradient(135deg, #0a1420 0%, #10233c 50%, #1a2a40 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -20%;
            left: 5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 82, 204, 0.25) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            right: 10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 159, 28, 0.12) 0%, transparent 70%);
            border-radius: 50%;
        }

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

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .cta-buttons .btn-outline-white {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .cta-buttons .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .cta-section .btn-accent {
            background: var(--accent);
            color: var(--text-main);
            box-shadow: 0 4px 20px rgba(255, 159, 28, 0.35);
        }

        .cta-section .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 159, 28, 0.5);
        }

        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 72px 0 32px;
        }

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

        .footer-brand .brand-text {
            color: #fff;
            font-size: 24px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            transition: all 0.25s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 28px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        .empty-state {
            text-align: center;
            padding: 60px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .empty-state i {
            font-size: 42px;
            color: var(--text-weak);
            margin-bottom: 16px;
        }

        .empty-state h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .empty-state p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                align-items: start;
            }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .header-inner {
                gap: 12px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: center;
                padding: 20px;
                gap: 12px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
            }

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

            .nav-link {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                border-radius: 10px;
            }

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

            .nav-toggle {
                display: flex;
            }

            .header-cta .btn {
                display: none;
            }

            .article-hero {
                padding: 48px 0 40px;
            }

            .article-hero h1 {
                font-size: 26px;
                line-height: 1.4;
            }

            .article-body {
                padding: 28px 22px;
            }

            .article-body-content {
                font-size: 15px;
                line-height: 1.9;
            }

            .article-nav-cards {
                grid-template-columns: 1fr;
            }

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

            .cta-section {
                padding: 56px 0;
            }

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

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

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

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

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

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

            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 17px;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

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

            .article-hero h1 {
                font-size: 22px;
            }

            .article-hero .breadcrumb {
                font-size: 12px;
                padding: 6px 14px;
            }

            .article-body-content h2 {
                font-size: 20px;
            }

            .article-body-content h3 {
                font-size: 17px;
            }

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

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

/* roulang page: category1 */
:root {
  --primary: #c62828;
  --primary-dark: #8e1b1b;
  --primary-light: #ffe9e9;
  --accent: #f5a623;
  --accent-light: #fff4df;
  --dark: #141c2e;
  --dark-soft: #1f2937;
  --bg: #f6f8fb;
  --white: #ffffff;
  --text: #1f2a44;
  --text-weak: #6b7a90;
  --border: #e3e9f1;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 6px 28px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 14px 44px rgba(15, 23, 42, 0.13);
  --gap: 32px;
  --section-space: 88px;
  --max-w: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  transition: all 0.25s ease;
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 18px rgba(198, 40, 40, 0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(198, 40, 40, 0.35); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,0.8); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.14); border-color: #fff; }
.btn-light { background: #fff; color: var(--primary); box-shadow: var(--shadow-md); }
.btn-light:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid rgba(198, 40, 40, 0.4); outline-offset: 2px; }

.section { padding: var(--section-space) 0; }
.section-head { max-width: 760px; margin: 0 auto 54px; text-align: center; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 16px;
  border-radius: 999px;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-title { font-size: 34px; font-weight: 800; line-height: 1.3; color: var(--dark); letter-spacing: -0.5px; }
.section-desc { margin-top: 12px; font-size: 16px; color: var(--text-weak); }

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), #e05a5a);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(198, 40, 40, 0.3);
}
.brand-text { font-size: 21px; font-weight: 800; color: var(--dark); line-height: 1.2; }
.brand-text span { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav-link {
  padding: 9px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  transition: all 0.2s;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: #fff; background: var(--primary); box-shadow: 0 4px 14px rgba(198, 40, 40, 0.3); }
.header-cta { display: flex; align-items: center; gap: 14px; margin-left: 12px; }
.header-cta .btn { padding: 10px 24px; font-size: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--dark); border-radius: 2px; transition: 0.3s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ Hero ============ */
.category-hero {
  position: relative;
  padding: 108px 0 96px;
  background: linear-gradient(135deg, #101826 0%, #1b2437 55%, #24344d 100%);
  overflow: hidden;
}
.category-hero .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}
.category-hero .hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(198,40,40,0.25) 0%, transparent 60%);
}
.hero-inner { position: relative; z-index: 2; }
.hero-breadcrumb { display: flex; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 20px; align-items: center; }
.hero-breadcrumb a:hover { color: var(--accent); }
.hero-breadcrumb span { color: rgba(255,255,255,0.4); }
.hero-title { font-size: 50px; font-weight: 900; color: #fff; line-height: 1.15; letter-spacing: -1px; max-width: 720px; }
.hero-title em { font-style: normal; color: var(--accent); }
.hero-desc { margin-top: 20px; font-size: 17px; color: rgba(255,255,255,0.82); max-width: 660px; line-height: 1.8; }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 16px; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 56px; max-width: 620px; }
.hero-stat {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  backdrop-filter: blur(6px);
}
.hero-stat .num { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.68); margin-top: 4px; }

/* ============ Ticker ============ */
.pulse-bar { background: var(--dark-soft); border-bottom: 1px solid rgba(255,255,255,0.08); }
.pulse-inner { display: flex; align-items: center; gap: 18px; padding: 12px 0; overflow: hidden; }
.pulse-label {
  flex-shrink: 0;
  background: var(--accent);
  color: var(--dark);
  font-size: 13px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}
.pulse-text { color: rgba(255,255,255,0.82); font-size: 14px; white-space: nowrap; animation: pulseMove 30s linear infinite; }
@keyframes pulseMove { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ============ Category Cards ============ */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(198,40,40,0.25); }
.cat-card .icon-wrap {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--primary);
  background: var(--primary-light);
  margin-bottom: 18px;
  transition: all 0.3s;
}
.cat-card:hover .icon-wrap { background: var(--primary); color: #fff; }
.cat-card h3 { font-size: 20px; font-weight: 800; color: var(--dark); margin-bottom: 8px; }
.cat-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
.cat-card .cat-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--primary); }
.cat-card .cat-more i { transition: transform 0.2s; }
.cat-card:hover .cat-more i { transform: translateX(4px); }

/* ============ Guide Steps ============ */
.guide-section { background: var(--dark); position: relative; overflow: hidden; }
.guide-section::before {
  background: url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  opacity: 0.12;
  content: "";
  position: absolute;
  inset: 0;
}
.guide-wrap { position: relative; z-index: 2; }
.guide-section .section-title { color: #fff; }
.guide-section .section-desc { color: rgba(255,255,255,0.7); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 20px; }
.step-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: all 0.3s;
  position: relative;
}
.step-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.step-num {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--accent);
  color: var(--dark);
  font-size: 19px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.step-card h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step-card p { color: rgba(255,255,255,0.65); font-size: 14px; line-height: 1.75; }

/* ============ Match Cards ============ */
.match-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.match-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.match-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.match-cover { position: relative; height: 190px; overflow: hidden; }
.match-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.match-card:hover .match-cover img { transform: scale(1.06); }
.match-badge {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(198,40,40,0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.match-info { padding: 22px 24px 24px; }
.match-info h3 { font-size: 18px; font-weight: 800; color: var(--dark); margin-bottom: 6px; }
.match-league { font-size: 13px; color: var(--text-weak); margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.match-meta { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border); padding-top: 14px; font-size: 13px; color: var(--text-weak); }
.match-meta .time { display: flex; align-items: center; gap: 5px; } 

/* ============ News + Rank ============ */
.news-layout { display: grid; grid-template-columns: 1.7fr 1fr; gap: 40px; }
.news-list .news-item {
  display: flex;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  transition: all 0.2s;
}
.news-list .news-item:first-child { padding-top: 0; }
.news-item:hover h3 { color: var(--primary); }
.news-thumb { width: 168px; height: 108px; border-radius: var(--radius-md); overflow: hidden; flex-shrink: 0; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body h3 { font-size: 17px; font-weight: 700; color: var(--dark); line-height: 1.5; transition: color 0.2s; margin-bottom: 8px; }
.news-body p { font-size: 14px; color: var(--text-weak); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 10px; }
.news-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.news-tags .tag { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: var(--bg); border: 1px solid var(--border); color: var(--text-weak); font-weight: 500; }

.rank-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px;
}
.rank-title { font-size: 18px; font-weight: 800; color: var(--dark); margin-bottom: 22px; display: flex; align-items: center; gap: 10px; }
.rank-title i { color: var(--accent); }
.rank-list li { display: flex; align-items: center; gap: 14px; padding: 13px 0; border-bottom: 1px dashed var(--border); }
.rank-list li:last-child { border-bottom: none; }
.rank-num { width: 26px; height: 26px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; background: var(--bg); color: var(--text-weak); flex-shrink: 0; }
.rank-list li:nth-child(1) .rank-num { background: var(--accent); color: #fff; }
.rank-list li:nth-child(2) .rank-num { background: #b8c2d0; color: #fff; }
.rank-list li:nth-child(3) .rank-num { background: #d9a077; color: #fff; }
.rank-list .rank-text { font-size: 14px; font-weight: 600; color: var(--text); transition: color 0.2s; line-height: 1.4; }
.rank-list li:hover .rank-text { color: var(--primary); }

/* ============ FAQ ============ */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.25s;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
}
.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(--primary);
  font-size: 18px;
  flex-shrink: 0;
}
.faq-item summary::after {
  content: "\f107";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  margin-left: auto;
  color: var(--text-weak);
  transition: transform 0.25s;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 24px 22px 56px; color: var(--text-weak); font-size: 15px; line-height: 1.8; }

/* ============ CTA ============ */
.cta-block {
  background: linear-gradient(135deg, var(--primary) 0%, #a02323 100%);
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-block::before { background: url("/assets/images/backpic/back-3.png") center / cover no-repeat; opacity: 0.15; content: ""; position: absolute; inset: 0; }
.cta-inner { position: relative; z-index: 2; }
.cta-inner h2 { font-size: 34px; font-weight: 800; color: #fff; margin-bottom: 12px; letter-spacing: -0.5px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 30px; }
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ============ Footer ============ */
.site-footer { background: #0f1729; color: rgba(255,255,255,0.82); padding-top: 70px; }
.footer-main { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .brand-text { color: #fff; font-size: 23px; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.62); max-width: 380px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,0.62); transition: all 0.2s; }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.5); }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .match-grid { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr; gap: 32px; }
  .hero-title { font-size: 42px; }
}
@media (max-width: 768px) {
  .site-header { box-shadow: var(--shadow-sm); }
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 30px rgba(15,23,42,0.08);
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-link { text-align: center; padding: 14px; }
  .header-cta { margin-left: 0; }
  .header-cta .btn { display: none; }
  .category-hero { padding: 76px 0 64px; }
  .hero-title { font-size: 34px; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .hero-stat { padding: 14px 12px; }
  .hero-stat .num { font-size: 24px; }
  .section-title { font-size: 28px; }
  .section { --section-space: 64px; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .cta-block { padding: 48px 24px; }
  .cta-inner h2 { font-size: 28px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .cat-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .match-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 29px; }
  .hero-desc { font-size: 15px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .news-item { flex-direction: column; gap: 12px; }
  .news-thumb { width: 100%; height: 150px; }
  .faq-item summary { font-size: 14px; padding: 16px 18px; }
  .faq-item .faq-body { padding: 0 18px 18px 40px; font-size: 14px; }
  .cta-btns .btn { width: 100%; }
  .brand-text { font-size: 18px; }
}