/* roulang page: index */
:root {
  --primary: #0d1b2a;
  --primary-light: #1b2d3f;
  --primary-lighter: #243849;
  --accent: #ff7a1a;
  --accent-hover: #e5660e;
  --accent-soft: rgba(255, 122, 26, 0.12);
  --secondary: #17a2b8;
  --success: #21a46b;
  --body-bg: #f2f4f8;
  --card-bg: #ffffff;
  --text-main: #1c2b36;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 48px rgba(15, 23, 42, 0.12);
  --sidebar-width: 268px;
  --transition-fast: 0.2s ease;
  --transition-slow: 0.35s ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background-color: var(--body-bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--accent);
}
img {
  max-width: 100%;
  display: block;
}
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; }
ul { padding: 0; list-style: none; margin: 0; }
button, input, select, textarea {
  font-family: inherit;
}
button:focus-visible, a:focus-visible {
  outline: 3px solid rgba(255, 122, 26, 0.45);
  outline-offset: 3px;
  border-radius: 4px;
}
::selection {
  background: var(--accent);
  color: #fff;
}
.container {
  max-width: 1280px;
  padding-left: 24px;
  padding-right: 24px;
}
.site-wrapper {
  min-height: 100vh;
  background: var(--body-bg);
}
.main-area {
  margin-left: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Sidebar / Offcanvas 导航 ===== */
.app-sidebar {
  background: linear-gradient(180deg, #0d1b2a 0%, #132736 100%);
  border: none;
  width: var(--sidebar-width);
  z-index: 1050;
}
.app-sidebar.offcanvas-lg {
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}
.offcanvas-header.app-sidebar-header {
  padding: 28px 24px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.sidebar-brand:hover {
  color: #fff;
}
.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent) 0%, #ff9d4d 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 122, 26, 0.35);
  flex-shrink: 0;
}
.brand-name {
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.sidebar-body {
  padding: 24px 0 0;
  display: flex;
  flex-direction: column;
}
.sidebar-nav {
  padding: 0 14px;
}
.sidebar-label {
  display: block;
  padding: 0 12px 10px;
  font-size: 0.75rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border-radius: var(--radius);
  color: #b8c9d9;
  font-size: 0.98rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  margin-bottom: 4px;
}
.sidebar-link .nav-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: #7f97ab;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}
.sidebar-link:hover .nav-icon {
  background: rgba(255, 122, 26, 0.18);
  color: var(--accent);
}
.sidebar-link.active {
  background: linear-gradient(135deg, rgba(255, 122, 26, 0.18) 0%, rgba(255, 122, 26, 0.08) 100%);
  color: #fff;
  font-weight: 600;
}
.sidebar-link.active .nav-icon {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 122, 26, 0.3);
}
.sidebar-footer {
  margin-top: auto;
  padding: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.sidebar-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: #94a3b8;
  margin-bottom: 6px;
}
.info-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(33, 164, 107, 0.15);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}
.sidebar-tip {
  font-size: 0.82rem;
  color: #7d8fa1;
  margin-bottom: 0;
}
.sidebar-home-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.8rem;
  color: #5f7385;
  transition: color var(--transition-fast);
}
.sidebar-home-link:hover {
  color: var(--accent);
}
.btn-close-white {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* ===== Mobile topbar ===== */
.mobile-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--primary);
  padding: 14px 20px;
  position: sticky;
  top: 0;
  z-index: 1030;
  box-shadow: 0 4px 16px rgba(13, 27, 42, 0.18);
}
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 800;
}
.mobile-brand i {
  color: var(--accent);
  font-size: 1.3rem;
}
.mobile-menu-btn {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  color: #fff;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}
.mobile-menu-btn:hover {
  background: rgba(255, 122, 26, 0.2);
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  min-height: 560px;
  display: flex;
  align-items: center;
  padding: 80px 0;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 27, 42, 0.92) 0%, rgba(13, 27, 42, 0.72) 45%, rgba(13, 27, 42, 0.35) 100%);
}
.hero-section .container {
  position: relative;
  z-index: 2;
}
.hero-content {
  max-width: 680px;
  color: #fff;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 122, 26, 0.18);
  border: 1px solid rgba(255, 122, 26, 0.3);
  color: #ffb37a;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 50px;
  margin-bottom: 24px;
  letter-spacing: 0.06em;
}
.hero-content h1 {
  color: #fff;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.2;
  margin-bottom: 18px;
  font-weight: 800;
}
.hero-content .lead {
  font-size: 1.1rem;
  color: #c1d1e0;
  margin-bottom: 30px;
  line-height: 1.8;
  max-width: 560px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  border-radius: 50px;
  padding: 12px 28px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}
.btn-primary {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 122, 26, 0.3);
}
.btn-primary:hover, .btn-primary:active {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 122, 26, 0.36);
}
.btn-outline-light {
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}
.btn-outline-primary {
  border: 1px solid rgba(255, 122, 26, 0.4);
  color: var(--accent);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--accent-soft);
  color: var(--accent-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 36px;
  color: #aabccc;
  font-size: 0.86rem;
}
.hero-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero-meta i {
  color: var(--accent);
}

/* ===== Stats ===== */
.stats-section {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  padding: 50px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-card {
  text-align: center;
  padding: 18px 10px;
  border-radius: var(--radius);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.stat-number {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-number span {
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 800;
}
.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ===== Section common ===== */
.section-padding {
  padding: 72px 0;
}
.section-head {
  margin-bottom: 36px;
}
.section-head.split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}
.section-marker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.section-head h2 {
  color: var(--primary);
  margin-bottom: 8px;
}
.section-head > p {
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 0;
}
.text-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}
.text-link i {
  transition: transform var(--transition-fast);
}
.text-link:hover i {
  transform: translateX(4px);
}
.text-link:hover {
  color: var(--accent-hover);
}

/* ===== Category cards ===== */
.category-section .section-head {
  text-align: center;
}
.category-section .section-head > p {
  margin-left: auto;
  margin-right: auto;
}
.category-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  height: 100%;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.category-img-wrap {
  position: relative;
  overflow: hidden;
  height: 190px;
}
.category-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover .category-img-wrap img {
  transform: scale(1.05);
}
.category-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(13, 27, 42, 0.4) 100%);
}
.category-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 50px;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}
.category-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.category-body h3 {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.category-body p {
  color: var(--text-muted);
  font-size: 0.92rem;
  flex-grow: 1;
  margin-bottom: 18px;
}

/* ===== News list ===== */
.news-section {
  background: var(--body-bg);
}
.news-list {
  display: grid;
  gap: 16px;
}
.news-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition-fast);
}
.news-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 122, 26, 0.3);
  transform: translateX(4px);
}
.news-cat {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 14px;
  border-radius: 50px;
  margin-top: 2px;
  white-space: nowrap;
}
.news-content {
  flex: 1;
}
.news-content h3 {
  color: var(--primary);
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.45;
}
.news-content h3:hover {
  color: var(--accent);
}
.news-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
  line-height: 1.6;
}
.news-date {
  color: var(--text-light);
  font-size: 0.8rem;
}
.news-date i {
  margin-right: 4px;
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px dashed var(--border-color);
  color: var(--text-muted);
}
.empty-state i {
  font-size: 2.4rem;
  color: var(--text-light);
  margin-bottom: 16px;
  display: block;
}
.empty-state p {
  margin-bottom: 0;
}

/* ===== Works / Process ===== */
.works-section {
  background: linear-gradient(180deg, #fff 0%, #f8fafc 100%);
}
.works-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.work-step {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px 24px;
  position: relative;
  text-align: center;
  transition: all var(--transition-slow);
}
.work-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 122, 26, 0.25);
}
.step-num {
  position: absolute;
  top: 16px;
  right: 22px;
  font-size: 2.1rem;
  font-weight: 800;
  color: rgba(13, 27, 42, 0.05);
  line-height: 1;
}
.work-step .step-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: all var(--transition-fast);
}
.work-step:hover .step-icon {
  background: var(--accent);
  color: #fff;
  transform: scale(1.05);
}
.work-step h3 {
  color: var(--primary);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.work-step p {
  color: var(--text-muted);
  font-size: 0.86rem;
  margin-bottom: 0;
  line-height: 1.6;
}

/* ===== Feature / Topics ===== */
.feature-section {
  background: var(--body-bg);
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.feature-img {
  position: relative;
  height: 170px;
  overflow: hidden;
}
.feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.feature-card:hover .feature-img img {
  transform: scale(1.06);
}
.feature-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(13, 27, 42, 0.35) 100%);
}
.feature-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: var(--accent);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  box-shadow: 0 4px 10px rgba(255, 122, 26, 0.3);
}
.feature-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.feature-body h3 {
  color: var(--primary);
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-body p {
  color: var(--text-muted);
  font-size: 0.88rem;
  flex-grow: 1;
  margin-bottom: 14px;
}
.feature-link {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.feature-link i {
  transition: transform var(--transition-fast);
}
.feature-link:hover i {
  transform: translateX(4px);
}
.feature-link:hover {
  color: var(--accent-hover);
}

/* ===== Function Matrix ===== */
.function-section {
  background: var(--primary);
  position: relative;
  overflow: hidden;
}
.function-section::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(255, 122, 26, 0.05);
  top: -200px;
  right: -150px;
}
.function-section::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(23, 162, 184, 0.05);
  bottom: -100px;
  left: -80px;
}
.function-section .container {
  position: relative;
  z-index: 2;
}
.function-section .section-marker {
  background: rgba(255, 122, 26, 0.15);
  color: #ffb37a;
}
.function-section .section-head h2 {
  color: #fff;
}
.function-section .section-head > p {
  color: #94a3b8;
}
.function-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.function-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all var(--transition-fast);
}
.function-box:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 122, 26, 0.3);
  transform: translateY(-4px);
}
.function-box .func-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent) 0%, #ff9d4d 100%);
  color: #fff;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 6px 16px rgba(255, 122, 26, 0.25);
}
.function-box h3 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.function-box p {
  color: #8fa3b8;
  font-size: 0.85rem;
  margin-bottom: 0;
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
}
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
}
.faq-accordion .accordion-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius) !important;
  margin-bottom: 14px;
  background: #fff;
  overflow: hidden;
}
.faq-accordion .accordion-button {
  font-weight: 600;
  color: var(--primary);
  background: #fff;
  padding: 20px 24px;
  font-size: 1rem;
  box-shadow: none;
  border-radius: var(--radius) !important;
}
.faq-accordion .accordion-button:not(.collapsed) {
  background: var(--accent-soft);
  color: var(--accent-hover);
}
.faq-accordion .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.2);
}
.faq-accordion .accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ff7a1a'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.faq-accordion .accordion-body {
  padding: 6px 24px 22px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
  border-top: 1px solid rgba(226, 232, 240, 0.6);
}
.faq-accordion .accordion-body p {
  margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  position: relative;
  padding: 80px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 27, 42, 0.94) 0%, rgba(13, 27, 42, 0.82) 100%);
}
.cta-section .container {
  position: relative;
  z-index: 2;
}
.cta-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.cta-box h2 {
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 14px;
  font-weight: 800;
}
.cta-box p {
  color: #c1d1e0;
  font-size: 1.02rem;
  margin-bottom: 28px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-light {
  background: #fff;
  border: 1px solid #fff;
  color: var(--primary);
  border-radius: 50px;
  font-weight: 600;
  padding: 12px 28px;
}
.btn-light:hover {
  background: #f0f0f0;
  border-color: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
.cta-note {
  color: #8fa3b8;
  font-size: 0.85rem;
  margin-top: 18px;
  display: block;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: #94a3b8;
  padding: 60px 0 30px;
  margin-top: auto;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 14px;
}
.footer-brand i {
  color: var(--accent);
  font-size: 1.4rem;
}
.footer-desc {
  font-size: 0.9rem;
  color: #7d8fa1;
  max-width: 360px;
  margin-bottom: 24px;
  line-height: 1.7;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 30px;
}
.footer-links a {
  color: #b8c9d9;
  font-size: 0.92rem;
  font-weight: 500;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: #5f7385;
}
.footer-bottom a {
  color: #7d8fa1;
}
.footer-bottom a:hover {
  color: var(--accent);
}

/* ===== Responsive ===== */
@media (min-width: 992px) {
  .app-sidebar {
    position: fixed !important;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    transform: none !important;
    visibility: visible !important;
  }
  .main-area {
    margin-left: var(--sidebar-width);
  }
  .mobile-topbar {
    display: none;
  }
}
@media (max-width: 991.98px) {
  .app-sidebar {
    width: 320px !important;
  }
  .hero-section {
    min-height: 480px;
    padding: 60px 0;
  }
}
@media (max-width: 767.98px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  .section-padding {
    padding: 52px 0;
  }
  .hero-section {
    min-height: 440px;
    padding: 50px 0;
  }
  .hero-meta {
    flex-wrap: wrap;
    gap: 12px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stat-number {
    font-size: 1.6rem;
  }
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .function-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .section-head.split {
    flex-direction: column;
    align-items: flex-start;
  }
  .news-item {
    flex-direction: column;
    gap: 10px;
    padding: 20px;
  }
  .news-cat {
    align-self: flex-start;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
}
@media (max-width: 575.98px) {
  .works-grid {
    grid-template-columns: 1fr;
  }
  .function-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #f7b500;
  --primary-dark: #d99a00;
  --primary-light: #ffe27a;
  --secondary: #242f3a;
  --bg: #f1f4f8;
  --bg-sidebar: #0f1923;
  --bg-card: #ffffff;
  --text-main: #1f2a33;
  --text-strong: #0f1923;
  --text-muted: #5f7385;
  --border-color: #e5eaf0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 25, 35, 0.05);
  --shadow-lg: 0 10px 30px rgba(15, 25, 35, 0.1);
  --transition: all 0.25s ease;
}

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

body {
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 16px;
}

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

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

.container {
  max-width: 1400px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ========== 左侧导航系统 ========== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: linear-gradient(160deg, #0f1923 0%, #172433 100%);
  color: #a7b7c7;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1050;
  transition: var(--transition);
  border-right: 1px solid rgba(255, 255, 255, 0.04);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 28px 24px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-brand i {
  font-size: 28px;
  color: var(--primary);
  background: rgba(247, 181, 0, 0.12);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.brand-name small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: #6f8599;
  margin-top: 2px;
}

.sidebar-nav {
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.sidebar-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #5f7184;
  padding: 0 12px 8px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  color: #9eb0c0;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
}

.sidebar-link.active {
  background: linear-gradient(90deg, rgba(247, 181, 0, 0.2), rgba(247, 181, 0, 0.05));
  color: var(--primary);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(247, 181, 0, 0.15);
}

.sidebar-link.active .nav-icon {
  color: var(--primary);
}

.nav-icon {
  width: 22px;
  text-align: center;
  font-size: 16px;
  color: #6d8295;
}

.sidebar-footer {
  padding: 18px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 13px;
  color: #5f7184;
  line-height: 1.5;
}

/* 顶部移动导航 */
.topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1040;
  background: #0f1923;
  color: #ffffff;
  padding: 0 16px;
  height: 60px;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
}

.topbar-brand i {
  color: var(--primary);
  font-size: 20px;
}

.navbar-toggler {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #ffffff;
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

/* ========== 主内容区 ========== */
.main-content {
  flex: 1;
  margin-left: 260px;
  min-width: 0;
}

.page-banner {
  position: relative;
  background: url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  padding: 90px 0 80px;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(15, 25, 35, 0.95) 0%, rgba(15, 25, 35, 0.6) 55%, rgba(15, 25, 35, 0.4) 100%);
}

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

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(247, 181, 0, 0.15);
  border: 1px solid rgba(247, 181, 0, 0.3);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.page-banner h1 {
  color: #ffffff;
  font-size: 40px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
  max-width: 700px;
}

.page-banner h1 em {
  font-style: normal;
  color: var(--primary);
}

.page-banner p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
  max-width: 640px;
  margin-bottom: 0;
}

.breadcrumb-wrap {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.62);
}

.breadcrumb-wrap a {
  color: rgba(255, 255, 255, 0.82);
  transition: var(--transition);
}

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

.breadcrumb-wrap i {
  font-size: 12px;
}

/* 板块通用 */
.section {
  padding: 80px 0;
}

.section-head {
  margin-bottom: 40px;
}

.section-head .se-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(247, 181, 0, 0.1);
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 750;
  color: var(--text-strong);
  margin-bottom: 8px;
  line-height: 1.3;
}

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

/* ========== 赛事资讯列表 ========== */
.news-section {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  height: 100%;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(247, 181, 0, 0.4);
}

.news-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

.news-card:hover .news-image img {
  transform: scale(1.05);
}

.news-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 25, 35, 0.85);
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  backdrop-filter: blur(4px);
  letter-spacing: 0.02em;
}

.news-badge.hot {
  background: var(--primary);
  color: #0f1923;
}

.news-body {
  padding: 22px 22px 24px;
}

.news-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  color: var(--text-strong);
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.news-body p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.news-meta i {
  margin-right: 4px;
  color: var(--primary);
}

/* ========== 赛事数据面板 ========== */
.dashboard-section {
  background: var(--bg);
}

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

.dash-card {
  background: #ffffff;
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.dash-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
  border-radius: 0 4px 4px 0;
  opacity: 0.7;
}

.dash-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(247, 181, 0, 0.12);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
}

.dash-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 6px;
}

.dash-card .dash-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-strong);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.dash-card .dash-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== 赛事类型矩阵 ========== */
.type-section {
  background: #ffffff;
}

.type-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.type-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: 50px;
  transition: var(--transition);
}

.type-tab:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: rgba(247, 181, 0, 0.06);
}

.type-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #0f1923;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(247, 181, 0, 0.25);
}

.type-tab i {
  font-size: 14px;
}

/* ========== 热门赛事排行 ========== */
.rank-section {
  background: var(--bg);
}

.rank-wrap {
  background: #ffffff;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  overflow: hidden;
}

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

.rank-table th {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.rank-table td {
  padding: 16px 14px;
  border-bottom: 1px solid #eef1f4;
  font-size: 15px;
}

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

.rank-table tr:hover td {
  background: rgba(247, 181, 0, 0.02);
}

.rank-num {
  font-weight: 800;
  color: var(--text-strong);
  width: 44px;
}

.rank-num.hot-num {
  color: var(--primary-dark);
}

.rank-sport {
  font-weight: 600;
  color: var(--text-main);
}

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

.rank-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 50px;
  background: rgba(247, 181, 0, 0.1);
  color: var(--primary-dark);
  font-weight: 500;
}

.rank-status.live {
  background: rgba(231, 76, 60, 0.08);
  color: #c0392b;
}

/* ========== 专题推荐 ========== */
.feature-section {
  background: #ffffff;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.feature-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  padding: 20px;
  transition: var(--transition);
  align-items: flex-start;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(247, 181, 0, 0.35);
}

.feature-icon {
  flex: 0 0 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(247, 181, 0, 0.1);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 6px;
  line-height: 1.4;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(247, 181, 0, 0.4);
}

.faq-item summary {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-strong);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.faq-item summary i {
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.faq-item[open] summary i {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
  border-top: 1px solid var(--border-color);
  margin-top: 0;
  padding-top: 16px;
}

/* ========== CTA ========== */
.cta-section {
  background: url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 25, 35, 0.94), rgba(15, 25, 35, 0.75));
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

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

.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  margin-bottom: 30px;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #0f1923;
  font-weight: 700;
  font-size: 16px;
  padding: 14px 36px;
  border-radius: 50px;
  border: none;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(247, 181, 0, 0.3);
}

.btn-cta:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(247, 181, 0, 0.4);
  color: #0f1923;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #0f1923;
  color: #a7b7c7;
  padding: 60px 0 30px;
  margin-left: 260px;
}

.site-footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

.site-footer .footer-brand i {
  color: var(--primary);
  font-size: 24px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #8b9eb0;
  margin-bottom: 20px;
  max-width: 480px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 18px;
}

.footer-links a {
  color: #a7b7c7;
  font-size: 14px;
  transition: var(--transition);
  position: relative;
  padding-bottom: 2px;
}

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

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin: 32px 0 24px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: #5f7385;
  flex-wrap: wrap;
}

/* ========== 响应式 ========== */
@media (max-width: 1199px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 991px) {
  .sidebar {
    display: none;
  }
  .topbar {
    display: flex;
  }
  .main-content {
    margin-left: 0;
    padding-top: 60px;
  }
  .site-footer {
    margin-left: 0;
  }
  .page-banner {
    padding: 60px 0;
  }
  .page-banner h1 {
    font-size: 32px;
  }
  .section {
    padding: 60px 0;
  }
}

@media (max-width: 767px) {
  .news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .dashboard-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .page-banner h1 {
    font-size: 28px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .rank-wrap {
    padding: 16px;
  }
  .type-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }
  .type-tab {
    flex-shrink: 0;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .feature-card {
    flex-direction: column;
  }
  .page-banner {
    padding: 44px 0;
  }
  .page-banner h1 {
    font-size: 24px;
  }
  .page-banner p {
    font-size: 15px;
  }
  .cta-inner h2 {
    font-size: 26px;
  }
  .btn-cta {
    width: 100%;
    justify-content: center;
  }
}

@media (min-width: 992px) {
  .sidebar {
    display: flex;
  }
  .topbar {
    display: none;
  }
}

/* roulang page: article */
:root {
            --primary: #2b5ba7;
            --primary-dark: #1b3a66;
            --primary-light: #dbe8fa;
            --accent: #e8a33d;
            --accent-dark: #c9821f;
            --accent-light: #fdf0dc;
            --bg: #f3f6fb;
            --card: #ffffff;
            --text: #16283a;
            --text-muted: #61809c;
            --border: #dfe8f2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(24, 49, 82, 0.05);
            --shadow: 0 10px 32px rgba(24, 49, 82, 0.08);
            --shadow-lg: 0 20px 50px rgba(24, 49, 82, 0.14);
            --sidebar-w: 272px;
            --transition: 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system, "Segoe UI", Roboto, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input {
            font-family: inherit;
        }

        /* Layout */
        .body-wrap {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--sidebar-w);
            background: linear-gradient(180deg, #101f33 0%, #1d3a5e 100%);
            z-index: 1050;
            padding: 30px 20px 20px;
            display: flex;
            flex-direction: column;
            box-shadow: 2px 0 24px rgba(8, 20, 35, 0.22);
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 4px 8px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 20px;
        }
        .sidebar-brand i {
            font-size: 1.6rem;
            color: var(--accent);
            background: rgba(232, 163, 61, 0.18);
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            flex-shrink: 0;
        }
        .sidebar-brand span {
            font-weight: 800;
            font-size: 1.08rem;
            color: #fff;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }
        .sidebar-label {
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 0.16em;
            color: rgba(255, 255, 255, 0.45);
            padding: 0 12px 10px;
            display: block;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 16px;
            border-radius: 12px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .sidebar-link .nav-icon {
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            font-size: 0.9rem;
            transition: background var(--transition);
        }
        .sidebar-link:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transform: translateX(3px);
        }
        .sidebar-link.active {
            background: var(--accent);
            color: #16283a;
            font-weight: 700;
            box-shadow: 0 6px 20px rgba(232, 163, 61, 0.3);
        }
        .sidebar-link.active .nav-icon {
            background: rgba(22, 40, 58, 0.12);
        }
        .sidebar-copyright {
            padding: 18px 12px 4px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }
        .main-wrapper {
            margin-left: var(--sidebar-w);
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        /* Mobile Header */
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 1030;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 18px;
            align-items: center;
            gap: 12px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        .menu-toggle {
            width: 40px;
            height: 40px;
            border: none;
            background: var(--primary-light);
            border-radius: 10px;
            color: var(--primary);
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: #c9dcf5;
        }
        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            color: var(--text);
            font-size: 1.02rem;
        }
        .mobile-logo i {
            color: var(--accent);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(16, 31, 51, 0.5);
            z-index: 1040;
        }
        .sidebar-overlay.show {
            display: block;
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            padding: 64px 0 56px;
            background-size: cover;
            background-position: center;
            color: #fff;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 31, 51, 0.88) 0%, rgba(43, 91, 167, 0.72) 100%);
        }
        .page-banner-content {
            position: relative;
            z-index: 1;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .breadcrumb-nav i {
            font-size: 0.6rem;
            opacity: 0.6;
        }
        .breadcrumb-nav span {
            color: var(--accent);
        }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 163, 61, 0.2);
            border: 1px solid rgba(232, 163, 61, 0.35);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .page-banner h1 {
            font-size: 2.1rem;
            font-weight: 800;
            line-height: 1.35;
            max-width: 820px;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .page-banner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 680px;
        }

        /* Article Section */
        .article-section {
            padding: 48px 0 0;
        }
        .article-card {
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px;
            margin-bottom: 28px;
            border: 1px solid rgba(223, 232, 242, 0.6);
        }
        .article-hero-image {
            border-radius: 14px;
            overflow: hidden;
            margin-bottom: 26px;
            position: relative;
            max-height: 380px;
        }
        .article-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-hero-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(16, 31, 51, 0.18), transparent 60%);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-bottom: 22px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .meta-item i {
            color: var(--accent);
        }
        .article-body {
            font-size: 1rem;
            color: #3a4f63;
            line-height: 1.9;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 2rem 0 1rem;
            color: var(--text);
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 1.6rem 0 0.8rem;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 1.2rem;
        }
        .article-body img {
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--accent-light);
            padding: 1rem 1.4rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
            color: #7a5a1e;
        }
        .article-body ul,
        .article-body ol {
            padding-left: 1.4rem;
            margin-bottom: 1.2rem;
        }
        .article-body li {
            margin-bottom: 0.5rem;
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body code {
            background: #eef2f8;
            border-radius: 6px;
            padding: 0.15em 0.4em;
            font-size: 0.9em;
            color: #c7254e;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-body table th {
            background: var(--primary-light);
            font-weight: 600;
        }

        /* Tags & Share */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-top: 28px;
            padding-top: 22px;
            border-top: 1px solid var(--border);
        }
        .tag-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            font-weight: 600;
        }
        .tag-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: background var(--transition), color var(--transition);
        }
        .tag-badge:hover {
            background: var(--primary);
            color: #fff;
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 18px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .share-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: #f0f4fa;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.88rem;
            transition: all var(--transition);
        }
        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(43, 91, 167, 0.3);
        }

        /* Article Pager */
        .article-pager {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            background: var(--card);
            border-radius: var(--radius);
            padding: 20px 28px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 28px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border: 1px solid rgba(223, 232, 242, 0.6);
            flex-wrap: wrap;
        }
        .article-pager a {
            color: var(--primary);
            font-weight: 600;
        }

        /* Related Section */
        .related-section {
            padding: 56px 0 60px;
        }
        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-head h2 {
            font-size: 1.7rem;
            font-weight: 800;
            position: relative;
            padding-left: 18px;
        }
        .section-head h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 5px;
            background: var(--accent);
            border-radius: 4px;
        }
        .section-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .section-more:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        .related-card {
            background: var(--card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid transparent;
            transition: all var(--transition);
            height: 100%;
            display: block;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .related-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }
        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-img img {
            transform: scale(1.05);
        }
        .related-body {
            padding: 18px 20px 22px;
        }
        .related-cat {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .related-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 24px;
        }
        .side-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
            border: 1px solid rgba(223, 232, 242, 0.6);
        }
        .side-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }
        .side-title i {
            color: var(--accent);
        }
        .side-search {
            display: flex;
            gap: 0;
        }
        .side-search input {
            flex: 1;
            border: 1px solid var(--border);
            border-radius: 24px 0 0 24px;
            padding: 9px 18px;
            font-size: 0.88rem;
            background: #f8fafd;
            outline: none;
            transition: border-color var(--transition);
        }
        .side-search input:focus {
            border-color: var(--primary);
        }
        .side-search button {
            border: none;
            background: var(--primary);
            color: #fff;
            width: 48px;
            border-radius: 0 24px 24px 0;
            cursor: pointer;
            transition: background var(--transition);
        }
        .side-search button:hover {
            background: var(--primary-dark);
        }
        .side-hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .side-hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 11px 0;
            border-bottom: 1px dashed var(--border);
        }
        .side-hot-list li:last-child {
            border-bottom: none;
        }
        .hot-num {
            font-size: 0.85rem;
            font-weight: 800;
            color: var(--primary);
            background: var(--primary-light);
            width: 30px;
            height: 30px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .side-hot-list li:nth-child(-n+3) .hot-num {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .side-hot-list a {
            font-size: 0.9rem;
            line-height: 1.5;
            font-weight: 500;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .side-hot-list a:hover {
            color: var(--primary);
        }
        .side-cats {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .cat-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: 12px;
            background: #f7f9fd;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .cat-link i {
            color: var(--primary);
            font-size: 1.1rem;
            width: 30px;
            text-align: center;
        }
        .cat-link span {
            margin-left: auto;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .cat-link:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            transform: translateX(4px);
        }
        .cta-card {
            background: linear-gradient(135deg, #1b3a66 0%, #2b5ba7 100%);
            color: #fff;
            text-align: center;
            border: none;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -30%;
            width: 180px;
            height: 180px;
            background: rgba(232, 163, 61, 0.15);
            border-radius: 50%;
        }
        .cta-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
        }
        .cta-card p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 16px;
            position: relative;
        }
        .cta-card>i {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
            position: relative;
        }
        .btn-gold {
            background: var(--accent);
            border: none;
            color: #16283a;
            font-weight: 700;
            padding: 9px 28px;
            border-radius: 30px;
            font-size: 0.88rem;
            transition: all var(--transition);
            position: relative;
            display: inline-block;
        }
        .btn-gold:hover {
            background: #f3b85a;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 163, 61, 0.35);
            color: #16283a;
        }

        /* CTA Section */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #16283c, #1d3a5e);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: rgba(232, 163, 61, 0.1);
            top: -240px;
            right: -120px;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            bottom: -150px;
            left: 10%;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            font-size: 1rem;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-brand {
            background: var(--accent);
            border: none;
            color: #16283a;
            font-weight: 700;
            padding: 12px 32px;
            border-radius: 30px;
            transition: all var(--transition);
        }
        .btn-brand:hover {
            background: #f3b85a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 163, 61, 0.4);
            color: #16283a;
        }
        .btn-outline-light-custom {
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            padding: 12px 32px;
            border-radius: 30px;
            background: transparent;
            font-weight: 600;
            transition: all var(--transition);
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #0e1c2c;
            color: rgba(255, 255, 255, 0.65);
            padding: 52px 0 24px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand i {
            color: var(--accent);
            font-size: 1.4rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 400px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .footer-links {
            display: flex;
            gap: 18px;
            margin-bottom: 14px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.08);
            margin: 28px 0 18px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 10px;
        }

        /* Not Found */
        .not-found-wrap {
            padding: 70px 0 50px;
        }
        .not-found-card {
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 60px 40px;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
            border: 1px solid var(--border);
        }
        .not-found-card i {
            font-size: 3.2rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }
        .not-found-card h1 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .not-found-card p {
            color: var(--text-muted);
            margin-bottom: 26px;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.35s ease;
                width: 280px;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .article-card {
                padding: 24px;
            }
            .article-sidebar {
                position: static;
                margin-top: 12px;
            }
            .sidebar-overlay.show {
                display: block;
            }
        }
        @media (max-width: 767px) {
            .page-banner {
                padding: 38px 0 32px;
            }
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .article-card {
                padding: 18px;
                border-radius: 12px;
            }
            .article-meta {
                gap: 12px;
                flex-direction: column;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-inner h2 {
                font-size: 1.4rem;
            }
            .related-section {
                padding: 40px 0;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .article-card {
                padding: 14px;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .side-card {
                padding: 18px;
            }
            .cta-btns .btn-brand,
            .cta-btns .btn-outline-light-custom {
                width: 100%;
                text-align: center;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
        }
        @media (min-width: 992px) {
            .article-sidebar {
                position: sticky;
                top: 24px;
            }
        }

/* roulang page: category2 */
:root{
      --primary:#0d7a5f;
      --primary-dark:#0a4f3e;
      --primary-light:#e7f3ef;
      --accent:#d49b1c;
      --bg:#f4f7f6;
      --surface:#ffffff;
      --text:#192b26;
      --text-weak:#60766c;
      --border:#dde8e4;
      --radius-lg:18px;
      --radius-md:12px;
      --radius-sm:8px;
      --shadow-card:0 8px 24px rgba(13,52,42,.06);
      --shadow-hover:0 16px 40px rgba(13,52,42,.12);
      --sidebar-width:260px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:'Inter','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
    a{text-decoration:none;color:inherit;transition:color .2s}
    img{max-width:100%;display:block}
    button{font-family:inherit}
    h1,h2,h3,h4{line-height:1.25;font-weight:700;color:var(--text)}
    .container{max-width:1200px;padding-left:24px;padding-right:24px}

    .app-shell{display:flex;min-height:100vh}
    .sidebar{width:260px;position:fixed;top:0;left:0;bottom:0;background:#0b2b20;display:flex;flex-direction:column;padding:28px 20px;z-index:1045;border-right:1px solid rgba(255,255,255,.06)}
    .sidebar-brand{display:flex;align-items:center;gap:12px;padding:0 6px 28px;border-bottom:1px solid rgba(255,255,255,.08)}
    .brand-icon{width:46px;height:46px;border-radius:14px;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#0b2b20;box-shadow:0 6px 18px rgba(212,155,28,.35);flex-shrink:0}
    .brand-text{display:flex;flex-direction:column}
    .brand-name{color:#fff;font-weight:700;font-size:1.06rem;letter-spacing:.2px;line-height:1.2}
    .brand-sub{color:rgba(255,255,255,.42);font-size:.68rem;letter-spacing:1.6px;text-transform:uppercase;margin-top:3px}
    .sidebar-nav{display:flex;flex-direction:column;margin-top:28px;gap:6px}
    .sidebar-label{color:rgba(255,255,255,.35);font-size:.7rem;letter-spacing:2.4px;text-transform:uppercase;padding:0 12px;margin-bottom:10px}
    .sidebar-link{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:12px;color:rgba(255,255,255,.72);font-size:.94rem;font-weight:500;transition:all .25s}
    .sidebar-link .nav-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:9px;background:rgba(255,255,255,.06);color:rgba(255,255,255,.68);font-size:.9rem;transition:all .25s}
    .sidebar-link:hover{background:rgba(255,255,255,.06);color:#fff;transform:translateX(2px)}
    .sidebar-link.active{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(13,122,95,.35)}
    .sidebar-link.active .nav-icon{background:rgba(255,255,255,.18);color:#fff}
    .sidebar-foot{margin-top:auto;padding:18px 12px 0;border-top:1px solid rgba(255,255,255,.08);color:rgba(255,255,255,.3);font-size:.78rem;line-height:1.6}
    .main-wrapper{flex:1;margin-left:260px;display:flex;flex-direction:column;min-width:0}

    .mobile-header{display:none;position:sticky;top:0;z-index:1040;background:#0b2b20;padding:14px 20px;align-items:center;justify-content:space-between;box-shadow:0 6px 20px rgba(0,0,0,.18)}
    .mobile-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1rem}
    .mobile-brand .brand-icon{width:36px;height:36px;border-radius:10px;font-size:1rem}
    .navbar-toggler-custom{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:#fff;width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:all .25s}
    .navbar-toggler-custom:hover{background:rgba(255,255,255,.16)}
    .mobile-offcanvas{background:#0b2b20;color:#fff;max-width:300px}
    .mobile-offcanvas .offcanvas-header{color:#fff;border-bottom:1px solid rgba(255,255,255,.08);padding:20px 24px}
    .mobile-offcanvas .btn-close{background:transparent;opacity:.7;filter:invert(1)}
    .mobile-nav-list{display:flex;flex-direction:column;gap:6px;margin-top:10px;padding:0 8px}
    .mobile-nav-link{display:flex;align-items:center;gap:14px;color:rgba(255,255,255,.75);font-weight:500;font-size:.95rem;padding:14px;border-radius:12px;transition:all .25s}
    .mobile-nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
    .mobile-nav-link.active-nav{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(13,122,95,.35)}
    .mobile-nav-link .nav-icon{width:30px;text-align:center}

    .category-hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden}
    .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
    .category-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,30,23,.92) 20%,rgba(6,30,23,.65) 55%,rgba(6,30,23,.22) 100%);z-index:1}
    .hero-content{position:relative;z-index:2;padding:80px 0;max-width:680px}
    .hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(13,122,95,.35);border:1px solid rgba(13,122,95,.6);color:#d9fff0;padding:8px 18px;border-radius:50px;font-size:.84rem;font-weight:600;letter-spacing:.4px;margin-bottom:22px}
    .hero-content h1{font-size:2.7rem;font-weight:800;color:#fff;line-height:1.2;margin-bottom:20px;letter-spacing:-.5px}
    .hero-content .hero-text{font-size:1.06rem;color:rgba(255,255,255,.82);line-height:1.8;margin-bottom:34px;max-width:580px}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap}

    .btn-primary-custom{background:var(--primary);color:#fff;padding:13px 30px;border-radius:50px;font-weight:600;font-size:.95rem;border:none;display:inline-flex;align-items:center;gap:8px;transition:all .3s;box-shadow:0 8px 22px rgba(13,122,95,.3)}
    .btn-primary-custom:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(13,122,95,.4)}
    .btn-ghost-custom{background:rgba(255,255,255,.1);border:1.5px solid rgba(255,255,255,.5);color:#fff;padding:13px 30px;border-radius:50px;font-weight:600;font-size:.95rem;transition:all .3s;display:inline-flex;align-items:center;gap:8px;backdrop-filter:blur(4px)}
    .btn-ghost-custom:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-2px)}

    .section{padding:90px 0}
    .section-alt{background:var(--surface)}
    .section-soft{background:#eef4f1}
    .section-dark{background:#0b2b20;color:#fff}
    .section-head{margin-bottom:48px;max-width:680px}
    .section-head.center{margin-left:auto;margin-right:auto;text-align:center}
    .section-tag{display:inline-block;background:var(--primary-light);color:var(--primary-dark);font-size:.78rem;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;padding:6px 16px;border-radius:50px;margin-bottom:14px}
    .section-head h2{font-size:2.1rem;font-weight:800;margin-bottom:14px;letter-spacing:-.3px}
    .section-head p{color:var(--text-weak);font-size:1rem;line-height:1.75;margin-bottom:0}
    .section-head.light h2{color:#fff}
    .section-head.light p{color:rgba(255,255,255,.65)}

    .feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;height:100%;transition:all .35s;position:relative;overflow:hidden}
    .feature-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:4px;background:var(--primary);opacity:0;transition:opacity .3s}
    .feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:transparent}
    .feature-card:hover::before{opacity:1}
    .feature-icon{width:56px;height:56px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.35rem;margin-bottom:22px}
    .feature-card h3{font-size:1.16rem;font-weight:700;margin-bottom:10px}
    .feature-card p{color:var(--text-weak);font-size:.92rem;line-height:1.7;margin-bottom:0}

    .cover-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:all .35s;height:100%}
    .cover-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
    .cover-card img{width:100%;height:240px;object-fit:cover;transition:transform .5s}
    .cover-card:hover img{transform:scale(1.06)}
    .cover-card-body{position:absolute;left:0;right:0;bottom:0;padding:60px 22px 22px;background:linear-gradient(to top,rgba(4,24,17,.85),rgba(4,24,17,.02));color:#fff}
    .cover-card .cover-tag{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.6px;background:var(--accent);color:#0b2b20;padding:4px 12px;border-radius:50px;margin-bottom:10px}
    .cover-card h3{font-size:1.1rem;font-weight:700;color:#fff;margin-bottom:6px}
    .cover-card p{font-size:.83rem;color:rgba(255,255,255,.75);margin-bottom:0}

    .stat-box{text-align:center;padding:36px 24px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);transition:all .3s}
    .stat-box:hover{background:rgba(255,255,255,.08);transform:translateY(-4px)}
    .stat-number{font-size:2.5rem;font-weight:800;color:#fff;line-height:1.1;margin-bottom:6px}
    .stat-number em{font-style:normal;color:var(--accent)}
    .stat-label{color:rgba(255,255,255,.6);font-size:.88rem}

    .content-item{display:flex;gap:20px;padding:24px;border-bottom:1px solid var(--border);transition:all .25s;border-radius:12px;margin:0 -12px}
    .content-item:last-child{border-bottom:none}
    .content-item:hover{background:var(--surface);box-shadow:var(--shadow-card);margin:0 -12px}
    .content-num{font-size:1.5rem;font-weight:800;color:var(--primary);opacity:.35;width:48px;flex-shrink:0;display:flex;align-items:center}
    .content-item h3{font-size:1.08rem;font-weight:700;margin-bottom:8px}
    .content-item h3 a{color:var(--text);transition:color .2s}
    .content-item h3 a:hover{color:var(--primary)}
    .content-meta{display:flex;gap:16px;color:var(--text-weak);font-size:.82rem;margin-top:10px;flex-wrap:wrap}
    .content-meta span i{margin-right:6px;color:var(--accent)}
    .content-side-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);position:relative;height:100%}
    .content-side-img img{width:100%;height:100%;object-fit:cover;min-height:360px}
    .content-side-img::after{content:'球王会体育官网 · 运动健康';position:absolute;left:16px;bottom:16px;background:rgba(6,30,23,.7);color:#fff;font-size:.8rem;padding:8px 16px;border-radius:30px;backdrop-filter:blur(6px)}

    .step-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 24px;height:100%;transition:all .3s;position:relative}
    .step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
    .step-num{width:50px;height:50px;border-radius:16px;background:var(--primary);color:#fff;font-size:1.25rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
    .step-card:nth-child(2) .step-num{background:#118a6a}
    .step-card:nth-child(3) .step-num{background:#155f4b}
    .step-card:nth-child(4) .step-num{background:var(--accent);color:#0b2b20}
    .step-card h3{font-size:1.08rem;font-weight:700;margin-bottom:10px}
    .step-card p{font-size:.9rem;color:var(--text-weak);line-height:1.7;margin-bottom:0}

    .accordion-custom .accordion-item{border:1px solid var(--border);border-radius:14px!important;margin-bottom:12px;overflow:hidden;background:var(--surface);box-shadow:none}
    .accordion-custom .accordion-item:first-of-type,.accordion-custom .accordion-item:last-of-type{border-radius:14px!important}
    .accordion-custom .accordion-button{background:var(--surface);color:var(--text);font-weight:600;font-size:1.02rem;padding:20px 24px;box-shadow:none;border:none}
    .accordion-custom .accordion-button:not(.collapsed){background:var(--primary-light);color:var(--primary-dark);border-radius:14px 14px 0 0}
    .accordion-custom .accordion-button:focus{box-shadow:0 0 0 3px rgba(13,122,95,.2)}
    .accordion-custom .accordion-button::after{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230d7a5f'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e")}
    .accordion-custom .accordion-body{padding:8px 24px 24px;color:var(--text-weak);font-size:.94rem;line-height:1.75}

    .cta-section{padding:0 0 90px}
    .cta-box{background:#0e4f3a;border-radius:24px;padding:64px 56px;position:relative;overflow:hidden;color:#fff;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:30px;box-shadow:0 24px 60px rgba(6,40,28,.25)}
    .cta-box::before{content:'';position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;background:rgba(212,155,28,.14)}
    .cta-box::after{content:'';position:absolute;left:-40px;bottom:-90px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.05)}
    .cta-content{position:relative;z-index:2;max-width:620px}
    .cta-content h2{font-size:1.8rem;font-weight:800;color:#fff;margin-bottom:12px}
    .cta-content p{color:rgba(255,255,255,.7);margin-bottom:0;line-height:1.75}
    .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
    .cta-box .btn-primary-custom{background:var(--accent);color:#0b2b20;box-shadow:0 10px 28px rgba(212,155,28,.4)}
    .cta-box .btn-primary-custom:hover{background:#e8b83a;color:#0b2b20}
    .cta-box .btn-ghost-custom{border-color:rgba(255,255,255,.6)}

    .site-footer{background:#0a241b;color:rgba(255,255,255,.7);padding:70px 0 30px;margin-top:auto}
    .footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:1.2rem;font-weight:700;margin-bottom:16px}
    .footer-brand i{width:42px;height:42px;border-radius:12px;background:var(--accent);color:#0b2b20;display:flex;align-items:center;justify-content:center;font-size:1.1rem}
    .footer-desc{color:rgba(255,255,255,.55);line-height:1.8;max-width:520px;margin-bottom:0;font-size:.92rem}
    .footer-links{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:16px}
    .footer-links a{color:rgba(255,255,255,.7);font-size:.94rem;transition:color .2s}
    .footer-links a:hover{color:var(--accent)}
    .footer-divider{border-top:1px solid rgba(255,255,255,.1);margin:44px 0 24px}
    .footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:rgba(255,255,255,.4);font-size:.85rem}

    @media (max-width: 1199.98px){
      .hero-content h1{font-size:2.2rem}
    }
    @media (max-width: 991.98px){
      .sidebar{transform:translateX(-105%);transition:transform .35s}
      .main-wrapper{margin-left:0}
      .mobile-header{display:flex}
      .section{padding:64px 0}
      .hero-content h1{font-size:2rem}
      .hero-content{padding:56px 0}
      .cta-box{padding:44px 32px}
      .cta-content h2{font-size:1.5rem}
    }
    @media (max-width: 767.98px){
      .section{padding:52px 0}
      .section-head h2{font-size:1.65rem}
      .hero-content h1{font-size:1.75rem}
      .category-hero{min-height:440px}
      .content-side-img img{min-height:240px}
      .stat-number{font-size:2rem}
      .cover-card img{height:200px}
    }
    @media (max-width: 575.98px){
      .hero-actions .btn-primary-custom,.hero-actions .btn-ghost-custom{width:100%;justify-content:center}
      .cta-box{padding:36px 24px}
      .footer-bottom{flex-direction:column}
      .content-item{flex-direction:column;gap:12px;padding:18px}
      .content-num{width:auto}
      .cta-actions .btn-primary-custom,.cta-actions .btn-ghost-custom{width:100%;justify-content:center}
    }