/* roulang page: index */
:root {
  --primary: #1B5A7D;
  --primary-light: #2E7FA3;
  --accent: #E8843C;
  --bg: #F6F8FB;
  --card-bg: #FFFFFF;
  --text-main: #22303E;
  --text-sub: #5C6B7A;
  --text-weak: #93A1B0;
  --border: #E8EDF2;
  --radius-lg: 16px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 16px rgba(27, 90, 125, 0.08);
  --shadow-hover: 0 12px 32px rgba(27, 90, 125, 0.14);
  --shadow-btn: 0 4px 12px rgba(27, 90, 125, 0.3);
  --transition: all 0.25s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul {
  list-style: none;
}

button {
  font-family: var(--font-main);
  cursor: pointer;
}

input {
  font-family: var(--font-main);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Header / Nav ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  height: 72px;
}

.header.scrolled {
  background: rgba(246, 248, 251, 0.92);
  box-shadow: 0 2px 12px rgba(34, 48, 62, 0.08);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 72px;
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.nav-right {
  justify-content: flex-end;
}

.nav-item {
  display: block;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: var(--radius-pill);
  position: relative;
  transition: var(--transition);
}

.nav-item:hover {
  color: var(--primary);
  background: rgba(27, 90, 125, 0.06);
}

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

.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.logo-center {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
}

.logo-text {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 1px;
  line-height: 1;
  display: flex;
  align-items: center;
}

.logo-text .dot {
  color: var(--accent);
  font-size: 32px;
  margin-left: 2px;
}

.logo-center a:hover {
  color: var(--text-main);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-main);
  padding: 8px;
  cursor: pointer;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  background: linear-gradient(90deg, rgba(20, 34, 48, 0.8) 0%, rgba(20, 34, 48, 0.35) 60%, rgba(20, 34, 48, 0.05) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: 120px 0 80px;
  margin-top: 72px;
}

.hero-content {
  max-width: 640px;
  color: #F9FBFD;
}

.hero h1 {
  font-size: 50px;
  line-height: 1.2;
  font-weight: 800;
  color: #F9FBFD;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero-sub {
  font-size: 16px;
  line-height: 1.8;
  color: #C8D4DF;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(232, 132, 60, 0.35);
  transition: var(--transition);
}

.btn-primary:hover {
  background: #f09250;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 132, 60, 0.45);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 500;
  transition: var(--transition);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: #fff;
}

.hero-stats {
  display: flex;
  gap: 0;
  margin-top: 48px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: center;
  padding: 0 32px;
  position: relative;
}

.stat-item:first-child {
  padding-left: 0;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.3);
}

.stat-num {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  color: #F9FBFD;
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: #C8D4DF;
  margin-left: 10px;
}

.hero-side-card {
  position: absolute;
  right: 48px;
  bottom: 80px;
  width: 260px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-hover);
}

.hero-side-card .card-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-side-card .mini-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.hero-side-card .mini-item:last-child {
  border-bottom: none;
}

.hero-side-card .mini-item a {
  font-size: 13px;
  color: var(--text-main);
  display: block;
  line-height: 1.5;
  transition: var(--transition);
}

.hero-side-card .mini-item a:hover {
  color: var(--primary);
}

.hero-play-btn {
  position: absolute;
  right: 48px;
  top: 50%;
  transform: translateY(-50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.hero-play-btn:hover {
  background: rgba(232, 132, 60, 0.8);
  border-color: transparent;
  transform: translateY(-50%) scale(1.1);
}

/* ===== Content Rail ===== */
.section {
  padding: 80px 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
}

.section-more {
  font-size: 14px;
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.section-more:hover {
  color: var(--primary);
}

.rail-wrapper {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 12px;
  margin: 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.rail-wrapper::-webkit-scrollbar {
  height: 4px;
}

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

.rail-track {
  display: flex;
  gap: 20px;
  min-width: max-content;
}

.rail-card {
  width: 300px;
  flex-shrink: 0;
  scroll-snap-align: start;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

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

.rail-card .cover {
  position: relative;
  width: 100%;
  height: 169px;
  overflow: hidden;
}

.rail-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.rail-card:hover .cover img {
  transform: scale(1.03);
}

.rail-card .badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  z-index: 2;
}

.rail-card .duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 12px;
  font-family: var(--font-num);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
}

.rail-card .text-area {
  padding: 16px;
}

.rail-card .title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
  min-height: 48px;
}

.rail-card .meta {
  font-size: 13px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===== Featured ===== */
.featured {
  background: var(--bg);
}

.featured-grid {
  display: flex;
  gap: 32px;
}

.featured-main {
  flex: 0 0 65%;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
  transition: var(--transition);
}

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

.featured-main .cover {
  height: 340px;
  overflow: hidden;
  position: relative;
}

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

.featured-main .cover .top-flag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: 1px;
}

.featured-main .text-area {
  padding: 24px;
}

.featured-main .f-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.featured-main .f-desc {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-side {
  flex: 0 0 35%;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.side-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: var(--transition);
}

.side-item:first-child {
  padding-top: 0;
}

.side-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.side-item:hover .thumb img {
  transform: scale(1.05);
}

.side-item .thumb {
  width: 110px;
  height: 74px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  flex-shrink: 0;
}

.side-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.side-item .info {
  flex: 1;
}

.side-item .info .t {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.side-item .info .m {
  font-size: 12px;
  color: var(--text-weak);
}

.top-label {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-right: 6px;
  vertical-align: 2px;
}

/* ===== List Sections ===== */
.list-section {
  background: #fff;
}

.list-section:nth-child(even) {
  background: var(--bg);
}

.section-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  color: rgba(27, 90, 125, 0.12);
  margin-right: 16px;
  line-height: 1;
}

.section-header-inner {
  display: flex;
  align-items: center;
}

.list-rows {
  display: flex;
  flex-direction: column;
}

.list-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

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

.list-row:hover {
  background: rgba(246, 248, 251, 0.6);
}

.list-row .thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  flex-shrink: 0;
}

.list-row .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.list-row:hover .thumb img {
  transform: scale(1.04);
}

.list-row .info {
  flex: 1;
}

.list-row .info .t {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.list-row .info .d {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.list-row .meta {
  font-size: 13px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.list-row .category-tag {
  background: rgba(27, 90, 125, 0.08);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
}

.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.grid-card {
  display: flex;
  gap: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.grid-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.grid-card .cover {
  width: 140px;
  height: 100px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  flex-shrink: 0;
}

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

.grid-card .info .t {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
  line-height: 1.4;
}

.grid-card .info .d {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.grid-card .info .m {
  font-size: 12px;
  color: var(--text-weak);
  margin-top: 8px;
}

.compact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.compact-row:last-child {
  border-bottom: none;
}

.compact-row .t {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  flex: 1;
}

.compact-row .t:hover {
  color: var(--primary);
}

.compact-row .c {
  font-size: 12px;
  color: var(--text-weak);
  background: rgba(27, 90, 125, 0.06);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-left: 12px;
}

.compact-row .time {
  font-size: 13px;
  color: var(--text-weak);
  font-family: var(--font-num);
  min-width: 80px;
  text-align: right;
}

/* ===== CMS List ===== */
.cms-section {
  background: var(--bg);
}

.cms-list-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

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

.cms-item-cat {
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  flex-shrink: 0;
  min-width: 72px;
  text-align: center;
}

.cms-item-main {
  flex: 1;
  min-width: 0;
}

.cms-item-main .t {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  display: block;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cms-item-main .t:hover {
  color: var(--primary);
}

.cms-item-main .d {
  font-size: 13px;
  color: var(--text-sub);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cms-item-meta {
  font-size: 13px;
  color: var(--text-weak);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 16px;
}

.cms-item-meta .time {
  font-family: var(--font-num);
}

.cms-item-meta .link {
  color: var(--primary);
  font-weight: 500;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.cms-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-weak);
  font-size: 15px;
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
}

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

.faq-item {
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

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

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}

.faq-q .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(27, 90, 125, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::after {
  content: '';
  position: absolute;
  right: -100px;
  top: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  z-index: 1;
}

.cta-left .t {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.cta-left .d {
  font-size: 15px;
  color: #AEC8DB;
  max-width: 480px;
  line-height: 1.7;
}

.cta-right {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.cta-right .btn-primary {
  background: var(--accent);
  min-width: 140px;
  justify-content: center;
}

.cta-right .btn-cta-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.cta-right .btn-cta-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* ===== Footer ===== */
.footer {
  background: #1F2A36;
  color: #B0BCC8;
  padding: 64px 0 0;
  position: relative;
}

.footer::before {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--primary-light);
  border-radius: 3px;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

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

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

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

.footer-brand .desc {
  font-size: 14px;
  line-height: 1.7;
  color: #8FA0AE;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: #8FA0AE;
  font-size: 14px;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary-light);
}

.footer-contact {
  font-size: 14px;
  color: #8FA0AE;
  line-height: 2;
}

.footer-contact i {
  width: 20px;
  color: var(--primary-light);
  margin-right: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #6B7B89;
}

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

.footer-bottom .links a {
  color: #6B7B89;
  font-size: 13px;
}

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

/* ===== Mobile Menu ===== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--bg);
  z-index: 999;
  box-shadow: 0 8px 24px rgba(34, 48, 62, 0.1);
  padding: 16px 0;
  border-top: 1px solid var(--border);
}

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

.mobile-menu .mobile-nav-item {
  display: block;
  padding: 14px 32px;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
}

.mobile-menu .mobile-nav-item:last-child {
  border-bottom: none;
}

.mobile-menu .mobile-nav-item.active {
  color: var(--primary);
  background: rgba(27, 90, 125, 0.04);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  
  .featured-grid {
    flex-direction: column;
  }
  
  .featured-main {
    flex: auto;
  }
  
  .featured-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  
  .side-item {
    border-bottom: none;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px;
  }
  
  .hero-side-card {
    display: none;
  }
  
  .hero-play-btn {
    display: none;
  }
}

@media (max-width: 767px) {
  .header-inner {
    padding: 0 16px;
  }
  
  .nav-left, .nav-right {
    display: none;
  }
  
  .nav-toggle {
    display: block;
    font-size: 22px;
  }
  
  .header-inner {
    justify-content: space-between;
  }
  
  .logo-center {
    order: 0;
  }
  
  .hero {
    min-height: 56vh;
    padding: 100px 0 60px;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .hero-sub {
    font-size: 15px;
  }
  
  .hero-buttons .btn-primary,
  .hero-buttons .btn-outline {
    padding: 12px 20px;
    font-size: 14px;
  }
  
  .hero-stats {
    gap: 0;
  }
  
  .stat-item {
    padding: 0 16px;
  }
  
  .stat-num {
    font-size: 20px;
  }
  
  .stat-label {
    font-size: 11px;
    margin-left: 6px;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .section-title {
    font-size: 22px;
  }
  
  .grid-2col {
    grid-template-columns: 1fr;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-inner {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
  
  .cta-left .t {
    font-size: 24px;
  }
  
  .cta-right {
    flex-direction: column;
    width: 100%;
  }
  
  .cta-right .btn-primary,
  .cta-right .btn-cta-outline {
    width: 100%;
    justify-content: center;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  
  .list-row {
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .list-row .thumb {
    width: 80px;
    height: 56px;
  }
  
  .list-row .info {
    flex: 1;
    min-width: calc(100% - 100px);
  }
  
  .list-row .info .d {
    display: none;
  }
  
  .list-row .meta {
    width: 100%;
    padding-left: 90px;
  }
  
  .cms-list-item {
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .cms-item-main {
    flex: 0 0 100%;
    order: 2;
  }
  
  .cms-item-cat {
    order: 1;
  }
  
  .cms-item-meta {
    order: 3;
    width: 100%;
    padding-left: 0;
    gap: 12px;
  }
  
  .grid-card {
    flex-direction: column;
  }
  
  .grid-card .cover {
    width: 100%;
    height: 160px;
  }
  
  .side-item {
    grid-template-columns: 1fr;
  }
  
  .side-item .thumb {
    width: 100%;
    height: 120px;
  }
  
  .side-item {
    flex-direction: column;
  }
  
  .side-item .info {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero-buttons .btn-primary,
  .hero-buttons .btn-outline {
    width: 100%;
    justify-content: center;
  }
  
  .hero-stats {
    margin-top: 32px;
  }
  
  .stat-item {
    padding: 0 12px;
  }
  
  .stat-num {
    font-size: 18px;
  }
  
  .stat-label {
    font-size: 11px;
    margin-left: 4px;
    white-space: nowrap;
  }
  
  .featured-side {
    grid-template-columns: 1fr;
  }
  
  .compact-row .time {
    display: none;
  }
}

/* roulang page: article */
:root {
  --primary: #1B5A7D;
  --primary-light: #2E7FA3;
  --accent: #E8843C;
  --bg: #F6F8FB;
  --card: #FFFFFF;
  --text-main: #22303E;
  --text-sub: #5C6B7A;
  --text-weak: #93A1B0;
  --border: #E8EDF2;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 16px rgba(27, 90, 125, 0.08);
  --shadow-hover: 0 12px 32px rgba(27, 90, 125, 0.14);
  --container: 1280px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-light); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  height: 72px;
  background: rgba(246, 248, 251, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.header.scrolled { box-shadow: 0 2px 12px rgba(34, 48, 62, 0.08); }
.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  height: 72px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.nav-left, .nav-right { flex: 1; display: flex; align-items: center; gap: 4px; }
.nav-left { justify-content: flex-end; }
.nav-right { justify-content: flex-start; }
.nav-item {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: var(--radius-md);
  position: relative;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-item:hover { color: var(--primary); background: rgba(27, 90, 125, 0.05); }
.nav-item.active { color: var(--primary); font-weight: 600; }
.nav-item.active::after {
  content: '';
  position: absolute;
  left: 16px; right: 16px; bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.logo-center { flex-shrink: 0; padding: 0 28px; }
.logo-text { font-size: 26px; font-weight: 800; color: var(--text-main); letter-spacing: 1px; }
.logo-text .dot { color: var(--accent); font-size: 30px; line-height: 1; vertical-align: -2px; }
.nav-toggle { display: none; padding: 8px 12px; font-size: 20px; color: var(--text-main); border-radius: 8px; }
.nav-toggle:hover { background: rgba(27, 90, 125, 0.06); }

/* ===== Article Main ===== */
.article-main {
  padding-top: 72px;
  min-height: calc(100vh - 72px);
}
.container-article {
  max-width: 1160px;
  padding: 40px 32px 80px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .current {
  color: var(--text-weak);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.breadcrumb i { font-size: 10px; color: var(--text-weak); }

/* Article Card */
.article-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px 56px;
  margin-bottom: 40px;
}
.article-header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.article-header h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}
.meta-item {
  font-size: 14px;
  color: var(--text-weak);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i { font-size: 13px; color: var(--primary-light); }

/* Article Content */
.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
}
.article-content p { margin-bottom: 24px; }
.article-content h2,
.article-content h3,
.article-content h4 {
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
  margin-top: 1.6em;
  margin-bottom: 0.8em;
}
.article-content h2 { font-size: 24px; }
.article-content h3 { font-size: 20px; }
.article-content h4 { font-size: 17px; }
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
  margin: 32px auto;
}
.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 24px;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg);
  padding: 16px 24px;
  margin: 24px 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-sub);
  font-style: italic;
}
.article-content pre {
  background: #F0F3F7;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 24px;
  font-family: var(--font-num);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 15px;
}
.article-content table th,
.article-content table td {
  padding: 12px 14px;
  border: 1px solid var(--border);
  text-align: left;
}
.article-content table th { background: var(--bg); font-weight: 600; color: var(--text-main); }

/* Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-sub);
  transition: all 0.2s ease;
}
.tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Related */
.related-section { margin-bottom: 40px; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.section-head h2 { font-size: 24px; font-weight: 700; color: var(--text-main); }
.more-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease, gap 0.2s ease;
}
.more-link:hover { color: var(--accent); gap: 10px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.related-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-cover img { transform: scale(1.03); }
.related-cover::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 60px;
  background: linear-gradient(180deg, transparent, rgba(34, 48, 62, 0.25));
}
.related-card h3 {
  padding: 16px 20px 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}
.related-card h3:hover { color: var(--primary); }
.related-meta {
  display: block;
  padding: 0 20px 18px;
  font-size: 13px;
  color: var(--text-weak);
}

/* Back Link */
.article-back { text-align: center; margin-top: 48px; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: all 0.2s ease;
}
.back-link:hover { color: var(--primary); border-color: var(--primary); box-shadow: var(--shadow-card); }
.back-link i { font-size: 13px; }

/* Not Found */
.article-not-found {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 80px 40px;
  text-align: center;
}
.not-found-icon { font-size: 48px; color: var(--text-weak); margin-bottom: 20px; }
.article-not-found h2 { font-size: 28px; font-weight: 700; color: var(--text-main); margin-bottom: 12px; }
.article-not-found p { color: var(--text-sub); margin-bottom: 32px; }

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  border: none;
  transition: all 0.2s ease;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(27, 90, 125, 0.3); }
.btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline: 3px solid rgba(27, 90, 125, 0.3); outline-offset: 2px; }

/* ===== Footer ===== */
.footer {
  background: #1F2A36;
  color: #B0BCC8;
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo-text { color: #fff; font-size: 26px; font-weight: 800; }
.footer-brand .desc {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: #8FA0B0;
  max-width: 360px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 48px;
  height: 2px;
  background: var(--primary-light);
  border-radius: 2px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { color: #B0BCC8; font-size: 14px; transition: color 0.2s ease; }
.footer-col ul li a:hover { color: #fff; }
.footer-contact p {
  font-size: 14px;
  margin-bottom: 12px;
  color: #B0BCC8;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i { color: var(--primary-light); width: 18px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #6C7D8C;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom .links { display: flex; gap: 20px; }
.footer-bottom .links a { color: #6C7D8C; transition: color 0.2s ease; }
.footer-bottom .links a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .container-article { padding: 32px 24px 64px; }
  .article-card { padding: 40px 32px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-item { padding: 8px 12px; font-size: 14px; }
  .logo-center { padding: 0 16px; }
  .logo-text { font-size: 24px; }
}

@media (max-width: 768px) {
  .header, .header-inner { height: 64px; }
  .header-inner {
    flex-wrap: wrap;
    padding: 0 20px;
    align-items: center;
  }
  .header.nav-open,
  .header.nav-open .header-inner { height: auto; }
  .nav-left { order: 4; display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; padding: 8px 0 4px; gap: 4px; }
  .nav-right { order: 5; display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; padding: 4px 0 12px; gap: 4px; }
  .header.nav-open .nav-left,
  .header.nav-open .nav-right { display: flex; }
  .logo-center {
    order: 2;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    padding: 0;
  }
  .logo-text { font-size: 22px; }
  .nav-toggle {
    order: 3;
    display: block;
    margin-left: auto;
  }
  .nav-item {
    padding: 12px 12px;
    font-size: 16px;
    border-radius: 8px;
  }
  .nav-item.active { background: rgba(27, 90, 125, 0.06); }
  .nav-item.active::after { display: none; }
  .article-main { padding-top: 64px; }
  .container-article { padding: 24px 16px 48px; }
  .article-card { padding: 28px 20px; margin-bottom: 32px; }
  .article-header h1 { font-size: 24px; }
  .article-meta { gap: 16px; }
  .meta-item { font-size: 13px; }
  .article-content { font-size: 15px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer { padding: 48px 0 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .breadcrumb .current { max-width: 220px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-card { padding: 24px 16px; }
  .article-header h1 { font-size: 22px; }
  .related-cover { aspect-ratio: 16 / 9; }
  .footer-contact p { font-size: 13px; }
  .tag { font-size: 12px; padding: 6px 12px; }
}

/* roulang page: category1 */
:root {
        --main: #1B5A7D;
        --main-light: #2E7FA3;
        --accent: #E8843C;
        --bg: #F6F8FB;
        --card-bg: #FFFFFF;
        --text: #22303E;
        --text-muted: #5C6B7A;
        --text-weak: #93A1B0;
        --border: #E8EDF2;
        --radius-lg: 16px;
        --radius-md: 10px;
        --radius-sm: 8px;
        --shadow: 0 4px 16px rgba(27, 90, 125, 0.08);
        --shadow-hover: 0 12px 32px rgba(27, 90, 125, 0.14);
        --transition: 0.25s ease;
    }
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
        background: var(--bg);
        color: var(--text);
        font-size: 16px;
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.2s ease;
    }
    img {
        max-width: 100%;
        display: block;
    }
    button,
    input {
        font-family: inherit;
        border: none;
        cursor: pointer;
    }
    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ========== Button ========== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 44px;
        padding: 0 28px;
        border-radius: var(--radius-md);
        font-size: 15px;
        font-weight: 600;
        transition: all 0.25s ease;
        white-space: nowrap;
    }
    .btn-primary {
        background: var(--accent);
        color: #fff;
        box-shadow: 0 4px 12px rgba(232, 132, 60, 0.3);
    }
    .btn-primary:hover {
        background: #f09050;
        box-shadow: 0 8px 20px rgba(232, 132, 60, 0.4);
        transform: translateY(-2px);
    }
    .btn-primary:active {
        transform: translateY(1px);
        box-shadow: 0 2px 8px rgba(232, 132, 60, 0.3);
    }
    .btn-outline {
        background: transparent;
        color: #F9FBFD;
        border: 1.5px solid rgba(255, 255, 255, 0.7);
    }
    .btn-outline:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: #fff;
        transform: translateY(-2px);
    }
    .btn-outline-light {
        background: transparent;
        color: #fff;
        border: 1.5px solid rgba(255, 255, 255, 0.6);
    }
    .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.15);
        border-color: #fff;
        transform: translateY(-2px);
    }
    .btn:focus-visible {
        outline: 3px solid rgba(46, 127, 163, 0.4);
        outline-offset: 2px;
    }

    /* ========== Header ========== */
    .header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(246, 248, 251, 0.92);
        backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--border);
        height: 72px;
        transition: box-shadow 0.3s ease;
    }
    .header.scrolled {
        box-shadow: 0 2px 12px rgba(34, 48, 62, 0.08);
    }
    .header-inner {
        max-width: 1280px;
        margin: 0 auto;
        height: 72px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 24px;
        position: relative;
    }
    .nav-left,
    .nav-right {
        display: flex;
        align-items: center;
        gap: 32px;
        flex: 1;
        min-width: 0;
    }
    .nav-right {
        justify-content: flex-end;
    }
    .logo-center {
        flex-shrink: 0;
        padding: 0 16px;
    }
    .logo-text {
        font-size: 26px;
        font-weight: 800;
        color: var(--text);
        letter-spacing: 1px;
        line-height: 1;
    }
    .logo-text .dot {
        color: var(--accent);
        font-size: 30px;
        line-height: 1;
        vertical-align: middle;
    }
    .nav-item {
        font-size: 15px;
        font-weight: 500;
        color: var(--text-muted);
        padding: 8px 2px;
        position: relative;
        transition: color 0.2s ease;
    }
    .nav-item:hover {
        color: var(--main);
    }
    .nav-item.active {
        color: var(--main);
        font-weight: 600;
    }
    .nav-item.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 2px;
        background: var(--main);
        border-radius: 2px;
    }
    .nav-toggle {
        display: none;
        background: none;
        font-size: 22px;
        color: var(--text);
        width: 44px;
        height: 44px;
        border-radius: var(--radius-sm);
        transition: background 0.2s ease;
    }
    .nav-toggle:hover {
        background: rgba(27, 90, 125, 0.08);
    }

    /* ========== Page Hero ========== */
    .page-hero {
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        position: relative;
        height: 320px;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
    }
    .page-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(20, 34, 48, 0.85) 0%, rgba(20, 34, 48, 0.55) 100%);
    }
    .hero-content {
        position: relative;
        z-index: 2;
        color: #F9FBFD;
        max-width: 780px;
        padding: 0 24px;
    }
    .hero-breadcrumb {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: 16px;
    }
    .hero-breadcrumb a {
        color: rgba(255, 255, 255, 0.8);
    }
    .hero-breadcrumb a:hover {
        color: #fff;
        text-decoration: underline;
    }
    .hero-breadcrumb .sep {
        color: rgba(255, 255, 255, 0.4);
    }
    .page-hero h1 {
        font-size: 44px;
        font-weight: 800;
        line-height: 1.2;
        margin-bottom: 16px;
        letter-spacing: 2px;
    }
    .page-hero p {
        color: #C8D4DF;
        font-size: 16px;
        line-height: 1.7;
        margin-bottom: 32px;
    }
    .hero-btns {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    /* ========== Layout ========== */
    .main-layout {
        padding: 60px 0 80px;
    }
    .main-layout .container {
        display: flex;
        gap: 40px;
        align-items: flex-start;
    }
    .main-content {
        flex: 1;
        min-width: 0;
    }
    .sidebar {
        width: 300px;
        flex-shrink: 0;
        position: sticky;
        top: 92px;
    }
    .section-block {
        margin-bottom: 56px;
    }
    .section-title-wrap {
        display: flex;
        align-items: center;
        gap: 14px;
        margin-bottom: 24px;
    }
    .section-index {
        font-family: "DIN Alternate", "Roboto Mono", monospace;
        font-size: 42px;
        font-weight: 700;
        color: var(--border);
        line-height: 1;
        user-select: none;
    }
    .section-title {
        font-size: 26px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.3;
    }
    .section-title::after {
        content: '';
        display: block;
        width: 36px;
        height: 3px;
        background: var(--accent);
        border-radius: 99px;
        margin-top: 8px;
    }

    /* ========== Intro Card ========== */
    .intro-card {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow);
        overflow: hidden;
        display: flex;
    }
    .intro-card .media {
        width: 46%;
        flex-shrink: 0;
        overflow: hidden;
    }
    .intro-card .media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .intro-card:hover .media img {
        transform: scale(1.04);
    }
    .intro-card .body {
        padding: 36px 32px;
        flex: 1;
    }
    .intro-card .body h3 {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 16px;
        line-height: 1.4;
    }
    .intro-card .body p {
        color: var(--text-muted);
        font-size: 15px;
        line-height: 1.8;
        margin-bottom: 12px;
    }
    .tag-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 18px;
    }
    .tag {
        display: inline-block;
        padding: 4px 14px;
        background: rgba(27, 90, 125, 0.08);
        color: var(--main);
        border-radius: 999px;
        font-size: 13px;
        font-weight: 500;
        border: 1px solid rgba(27, 90, 125, 0.1);
        transition: all 0.2s ease;
    }
    .tag:hover {
        background: var(--main);
        color: #fff;
        border-color: var(--main);
    }

    /* ========== Match Grid ========== */
    .match-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .match-card {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: transform 0.25s ease, box-shadow 0.25s ease;
        border: 1px solid var(--border);
    }
    .match-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .match-card .cover {
        position: relative;
        height: 180px;
        overflow: hidden;
    }
    .match-card .cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.35s ease;
    }
    .match-card:hover .cover img {
        transform: scale(1.06);
    }
    .match-card .badge {
        position: absolute;
        top: 12px;
        left: 12px;
        background: var(--accent);
        color: #fff;
        font-size: 12px;
        font-weight: 600;
        padding: 3px 12px;
        border-radius: 999px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
    }
    .match-card .info {
        padding: 18px 16px;
    }
    .match-card .info h4 {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 8px;
        line-height: 1.4;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }
    .match-card .meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 13px;
        color: var(--text-weak);
    }
    .match-card .meta .cat {
        color: var(--main-light);
        font-weight: 500;
    }

    /* ========== Feature Grid ========== */
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .feature-item {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        padding: 26px 24px;
        transition: all 0.25s ease;
    }
    .feature-item:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
    }
    .feature-item .icon {
        font-size: 24px;
        color: var(--main);
        margin-bottom: 14px;
        width: 52px;
        height: 52px;
        background: rgba(27, 90, 125, 0.08);
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: background 0.25s ease, color 0.25s ease;
    }
    .feature-item:hover .icon {
        background: var(--main);
        color: #fff;
    }
    .feature-item h4 {
        font-size: 17px;
        font-weight: 600;
        margin-bottom: 8px;
    }
    .feature-item p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }

    /* ========== Steps ========== */
    .steps {
        display: flex;
        gap: 20px;
    }
    .step {
        flex: 1;
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        padding: 28px 20px;
        text-align: center;
        transition: all 0.25s ease;
    }
    .step:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
    }
    .step .num {
        width: 38px;
        height: 38px;
        background: var(--main);
        color: #fff;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 16px;
        font-family: "DIN Alternate", "Roboto Mono", monospace;
        margin: 0 auto 14px;
    }
    .step h4 {
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 8px;
    }
    .step p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.6;
    }

    /* ========== FAQ ========== */
    .faq-wrap {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        padding: 8px 32px 24px;
        margin-bottom: 56px;
        box-shadow: var(--shadow);
    }
    .faq-item {
        border-bottom: 1px solid var(--border);
    }
    .faq-item:last-child {
        border-bottom: none;
    }
    .faq-q {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 0;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        gap: 16px;
        transition: color 0.2s ease;
    }
    .faq-q:hover {
        color: var(--main);
    }
    .faq-icon {
        font-size: 20px;
        color: var(--main-light);
        transition: transform 0.3s ease;
        flex-shrink: 0;
    }
    .faq-item.active .faq-icon {
        transform: rotate(45deg);
    }
    .faq-a {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease;
        padding: 0;
        color: var(--text-muted);
        font-size: 14px;
        line-height: 1.8;
    }
    .faq-item.active .faq-a {
        max-height: 260px;
        padding-bottom: 20px;
    }

    /* ========== Sidebar ========== */
    .sidebar-card {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        padding: 24px;
        margin-bottom: 24px;
        box-shadow: var(--shadow);
    }
    .sidebar-card h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border);
        position: relative;
    }
    .sidebar-card h3::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: -1px;
        width: 42px;
        height: 2px;
        background: var(--accent);
    }
    .sidebar-nav {
        list-style: none;
    }
    .sidebar-nav li {
        margin-bottom: 4px;
    }
    .sidebar-nav a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 12px;
        border-radius: var(--radius-sm);
        font-size: 14px;
        color: var(--text-muted);
        transition: all 0.2s ease;
    }
    .sidebar-nav a:hover {
        background: rgba(27, 90, 125, 0.06);
        color: var(--main);
    }
    .sidebar-nav a .count {
        font-size: 12px;
        color: var(--text-weak);
        background: var(--bg);
        padding: 2px 10px;
        border-radius: 999px;
        transition: background 0.2s ease, color 0.2s ease;
    }
    .sidebar-nav a:hover .count {
        background: var(--main);
        color: #fff;
    }
    .sidebar-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .sidebar-tags .tag {
        cursor: pointer;
    }
    .sidebar-contact {
        text-align: center;
        padding: 10px 0 0;
    }
    .sidebar-contact .icon-wrap {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: rgba(27, 90, 125, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        color: var(--main);
        margin: 0 auto 14px;
    }
    .sidebar-contact p {
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 8px;
    }
    .sidebar-contact p i {
        color: var(--main-light);
        width: 20px;
        margin-right: 4px;
    }
    .sidebar-contact .btn {
        width: 100%;
        justify-content: center;
        margin-top: 16px;
    }

    /* ========== CTA ========== */
    .cta-banner {
        background: var(--main);
        border-radius: var(--radius-lg);
        padding: 56px 48px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 32px;
        margin: 0 24px 80px;
        max-width: 1280px;
        position: relative;
        overflow: hidden;
    }
    .cta-banner::before {
        content: '';
        position: absolute;
        right: -60px;
        top: -60px;
        width: 220px;
        height: 220px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.05);
    }
    .cta-banner::after {
        content: '';
        position: absolute;
        right: 40px;
        bottom: -40px;
        width: 120px;
        height: 120px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.04);
    }
    .cta-text {
        position: relative;
        z-index: 2;
    }
    .cta-text h3 {
        color: #fff;
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 10px;
        line-height: 1.3;
    }
    .cta-text p {
        color: #AEC8DB;
        font-size: 15px;
        line-height: 1.7;
        max-width: 520px;
    }
    .cta-btns {
        display: flex;
        gap: 12px;
        flex-shrink: 0;
        position: relative;
        z-index: 2;
    }

    /* ========== Footer ========== */
    .footer {
        background: #1F2A36;
        color: #B0BCC8;
        padding: 60px 0 24px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 48px;
        margin-bottom: 48px;
    }
    .footer-brand .logo-text {
        color: #fff;
        font-size: 24px;
    }
    .footer-brand .dot {
        color: var(--accent);
    }
    .footer-brand .desc {
        margin-top: 14px;
        font-size: 14px;
        line-height: 1.8;
        max-width: 380px;
        color: #8FA0B0;
    }
    .footer-col h4 {
        color: #fff;
        font-size: 16px;
        margin-bottom: 16px;
        font-weight: 600;
        position: relative;
        padding-bottom: 10px;
    }
    .footer-col h4::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 32px;
        height: 2px;
        background: var(--main-light);
        border-radius: 2px;
    }
    .footer-col ul {
        list-style: none;
    }
    .footer-col ul li {
        margin-bottom: 10px;
    }
    .footer-col ul a {
        font-size: 14px;
        color: #B0BCC8;
        transition: color 0.2s ease;
    }
    .footer-col ul a:hover {
        color: #fff;
        padding-left: 4px;
    }
    .footer-contact p {
        font-size: 14px;
        margin-bottom: 10px;
        color: #B0BCC8;
    }
    .footer-contact i {
        margin-right: 8px;
        color: var(--main-light);
        width: 16px;
        text-align: center;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 13px;
        color: var(--text-weak);
    }
    .footer-bottom .links a {
        color: var(--text-weak);
        margin-left: 20px;
        font-size: 13px;
        transition: color 0.2s ease;
    }
    .footer-bottom .links a:hover {
        color: #fff;
    }

    /* ========== Responsive ========== */
    @media (max-width: 1024px) {
        .container {
            padding: 0 20px;
        }
        .main-layout .container {
            flex-direction: column;
        }
        .sidebar {
            width: 100%;
            position: static;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 8px;
        }
        .sidebar-card {
            margin-bottom: 0;
        }
        .intro-card {
            flex-direction: column;
        }
        .intro-card .media {
            width: 100%;
            height: 240px;
        }
        .cta-banner {
            margin-left: 20px;
            margin-right: 20px;
        }
    }
    @media (max-width: 768px) {
        .header {
            height: 60px;
        }
        .header-inner {
            height: 60px;
            padding: 0 16px;
            justify-content: center;
        }
        .nav-toggle {
            display: block;
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
        }
        .nav-left,
        .nav-right {
            display: none;
        }
        .header.nav-open {
            height: auto;
            box-shadow: 0 2px 12px rgba(34, 48, 62, 0.08);
        }
        .header.nav-open .header-inner {
            flex-wrap: wrap;
            height: auto;
            padding: 0 16px;
        }
        .header.nav-open .logo-center {
            order: 0;
            flex: 1;
        }
        .header.nav-open .nav-toggle {
            order: 1;
            position: static;
            transform: none;
        }
        .header.nav-open .nav-left {
            order: 2;
            flex-basis: 100%;
            display: flex;
            justify-content: center;
            gap: 28px;
            padding: 12px 0 4px;
            border-top: 1px solid var(--border);
        }
        .header.nav-open .nav-right {
            order: 3;
            flex-basis: 100%;
            display: flex;
            justify-content: center;
            gap: 28px;
            padding: 4px 0 14px;
        }
        .header.nav-open .nav-item {
            font-size: 15px;
            padding: 6px 0;
        }
        .logo-text {
            font-size: 22px;
        }

        .page-hero {
            height: 280px;
        }
        .page-hero h1 {
            font-size: 34px;
        }
        .page-hero p {
            font-size: 14px;
        }
        .main-layout {
            padding: 40px 0 56px;
        }
        .section-block {
            margin-bottom: 40px;
        }
        .match-grid {
            grid-template-columns: 1fr;
        }
        .feature-grid {
            grid-template-columns: 1fr;
        }
        .steps {
            flex-direction: column;
        }
        .sidebar {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .sidebar-card {
            margin-bottom: 0;
        }
        .cta-banner {
            flex-direction: column;
            text-align: center;
            padding: 40px 24px;
            margin: 0 16px 56px;
        }
        .cta-btns {
            flex-direction: column;
            width: 100%;
        }
        .cta-btns .btn {
            width: 100%;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .footer-bottom {
            flex-direction: column;
            gap: 12px;
            text-align: center;
        }
        .footer-bottom .links a {
            margin: 0 10px;
        }
    }
    @media (max-width: 480px) {
        .page-hero h1 {
            font-size: 28px;
        }
        .hero-btns {
            flex-direction: column;
        }
        .hero-btns .btn {
            width: 100%;
        }
        .intro-card .body {
            padding: 24px;
        }
        .faq-wrap {
            padding: 0 20px 16px;
        }
        .section-title {
            font-size: 22px;
        }
        .section-index {
            font-size: 34px;
        }
    }

/* roulang page: category2 */
:root {
  --primary: #1B5A7D;
  --primary-light: #2E7FA3;
  --accent: #E8843C;
  --bg: #F6F8FB;
  --card-bg: #FFFFFF;
  --text: #22303E;
  --text-sub: #5C6B7A;
  --text-weak: #93A1B0;
  --border: #E8EDF2;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 16px rgba(27, 90, 125, 0.08);
  --shadow-hover: 0 12px 32px rgba(27, 90, 125, 0.14);
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

input {
  font-family: inherit;
}

ul {
  list-style: none;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 248, 251, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(34, 48, 62, 0.08);
  height: 72px;
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-item {
  padding: 8px 18px;
  font-size: 15px;
  color: var(--text-sub);
  border-radius: 8px;
  position: relative;
  white-space: nowrap;
  transition: var(--transition);
}

.nav-item:hover {
  color: var(--primary);
  background: rgba(27, 90, 125, 0.04);
}

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

.nav-item.active::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.logo-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 50%;
  transform: translate(-50%, -50%);
}

.logo-text {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  letter-spacing: 1px;
}

.logo-text .dot {
  color: var(--accent);
  font-size: 30px;
}

.nav-toggle {
  display: none;
  background: transparent;
  font-size: 22px;
  color: var(--primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.nav-toggle:hover {
  background: rgba(27, 90, 125, 0.06);
  color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(232, 132, 60, 0.35);
}

.btn-accent:hover {
  background: #f39650;
  box-shadow: 0 6px 18px rgba(232, 132, 60, 0.45);
  color: #fff;
}

.btn-outline-light {
  background: transparent;
  border-color: #fff;
  color: #fff;
}

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

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(27, 90, 125, 0.3);
}

.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
  box-shadow: 0 6px 18px rgba(27, 90, 125, 0.4);
}

/* Page Hero */
.page-hero {
  min-height: 340px;
  background: linear-gradient(90deg, rgba(20, 34, 48, 0.88) 0%, rgba(20, 34, 48, 0.5) 60%, rgba(20, 34, 48, 0.2) 100%), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  display: flex;
  align-items: center;
  color: #F9FBFD;
  padding: 80px 0;
}

.hero-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  background: rgba(232, 132, 60, 0.18);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  border: 1px solid rgba(232, 132, 60, 0.35);
}

.page-hero h1 {
  font-size: 48px;
  line-height: 1.2;
  font-weight: 800;
  color: #F9FBFD;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.hero-sub {
  font-size: 17px;
  color: #C8D4DF;
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 32px;
}

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

/* Section */
.section {
  padding: 80px 0;
}

.section-head {
  margin-bottom: 48px;
  max-width: 640px;
}

.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 12px;
}

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

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

/* Channel Cards */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.channel-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.channel-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.channel-card .img-wrap {
  height: 180px;
  overflow: hidden;
  position: relative;
}

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

.channel-card:hover .img-wrap img {
  transform: scale(1.04);
}

.channel-card .img-wrap .badge-num {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(20, 34, 48, 0.75);
  color: #fff;
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.channel-card .content {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.channel-card .content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.channel-card .content p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.channel-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
}

.channel-card .card-link i {
  transition: transform 0.2s ease;
}

.channel-card .card-link:hover {
  color: var(--primary-light);
}

.channel-card .card-link:hover i {
  transform: translateX(4px);
}

/* Stats Band */
.stats-band {
  background: var(--primary);
  padding: 64px 0;
  color: #fff;
}

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

.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item:first-child {
  border-left: none;
}

.stat-num {
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  color: #AEC8DB;
}

/* Features */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 72px;
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row.reverse .feature-img {
  order: 2;
}

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

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

.feature-text .feature-index {
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.feature-text h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.feature-text p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 20px;
}

.feature-list {
  margin-top: 12px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 10px;
}

.feature-list li i {
  color: var(--primary);
  font-size: 13px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(27, 90, 125, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Steps */
.steps-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.step-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
}

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

.step-num {
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 44px;
  font-weight: 800;
  color: rgba(27, 90, 125, 0.14);
  line-height: 1;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* FAQ */
.faq-wrap {
  max-width: 860px;
  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: var(--transition);
}

.faq-item:hover {
  border-color: #d3dfe8;
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  background: transparent;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(27, 90, 125, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  background: var(--bg);
  border-top: 0;
}

/* CTA Band */
.cta-band {
  background: var(--primary);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
  color: #fff;
}

.cta-band::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.cta-text h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
}

.cta-text p {
  font-size: 15px;
  color: #AEC8DB;
  max-width: 480px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: #1F2A36;
  color: #B0BCC8;
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand .logo-text {
  color: #fff;
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand .desc {
  font-size: 14px;
  line-height: 1.8;
  color: #B0BCC8;
  max-width: 340px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 12px;
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

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

.footer-col ul li a {
  color: #B0BCC8;
  font-size: 14px;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: #fff;
  padding-left: 6px;
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  margin-bottom: 12px;
  color: #B0BCC8;
}

.footer-contact p i {
  color: var(--primary-light);
  width: 18px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #7E8B98;
}

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

.footer-bottom .links a {
  color: #7E8B98;
}

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

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--bg);
  z-index: 99;
  box-shadow: 0 12px 24px rgba(34, 48, 62, 0.1);
  padding: 16px 24px 24px;
}

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

.mobile-menu a {
  display: block;
  padding: 14px 16px;
  font-size: 16px;
  color: var(--text);
  border-radius: var(--radius-md);
  margin-bottom: 4px;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(27, 90, 125, 0.08);
  color: var(--primary);
  font-weight: 600;
}

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

  .nav-item {
    padding: 8px 14px;
    font-size: 14px;
  }

  .channel-grid {
    gap: 20px;
  }

  .channel-card .img-wrap {
    height: 160px;
  }

  .stats-band .container {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-item {
    border-left: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .feature-row {
    gap: 32px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  .page-hero {
    min-height: 300px;
    padding: 60px 0;
  }

  .page-hero h1 {
    font-size: 36px;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .nav-toggle {
    display: flex;
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
  }

  .logo-center {
    position: static;
    transform: none;
  }

  .header-inner {
    justify-content: center;
    position: relative;
  }

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

  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
  }

  .feature-row.reverse .feature-img {
    order: 0;
  }

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

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

  .cta-actions {
    width: 100%;
  }

  .cta-actions .btn {
    flex: 1;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

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

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

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

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

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

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

  .stats-band .container {
    grid-template-columns: 1fr 1fr;
    padding: 0 16px;
  }

  .stat-num {
    font-size: 32px;
  }

  .stat-label {
    font-size: 13px;
  }

  .cta-inner {
    gap: 24px;
  }

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

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

/* roulang page: category3 */
:root {
  --primary: #1B5A7D;
  --primary-light: #2E7FA3;
  --accent: #E8843C;
  --bg: #F6F8FB;
  --card: #FFFFFF;
  --text: #22303E;
  --text-secondary: #5C6B7A;
  --text-muted: #93A1B0;
  --border: #E8EDF2;
  --radius-lg: 16px;
  --radius-sm: 10px;
  --shadow-md: 0 4px 16px rgba(27, 90, 125, 0.08);
  --shadow-hover: 0 12px 32px rgba(27, 90, 125, 0.14);
  --shadow-btn: 0 4px 12px rgba(27, 90, 125, 0.3);
  --transition: 0.25s ease;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

ul,
ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
  background: rgba(232, 132, 60, 0.12);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: 1px;
}

.section-desc {
  max-width: 460px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn i {
  font-size: 14px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(232, 132, 60, 0.3);
}

.btn-primary:hover {
  background: #f0924e;
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(232, 132, 60, 0.35);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 8px rgba(232, 132, 60, 0.3);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.7);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: #fff;
  color: #fff;
  text-decoration: none;
}

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

.btn-outline-light:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  text-decoration: none;
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(46, 127, 163, 0.4);
  outline-offset: 2px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.header.scrolled {
  background: rgba(246, 248, 251, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(34, 48, 62, 0.08);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: var(--header-h);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.nav-left {
  justify-content: flex-start;
}

.nav-right {
  justify-content: flex-end;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  height: 72px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-item::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0.5);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.nav-item:hover,
.nav-item.active {
  color: var(--primary);
  text-decoration: none;
}

.nav-item:hover::after,
.nav-item.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.logo-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-text {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--primary);
  text-decoration: none;
  line-height: 1;
}

.logo-text:hover {
  color: var(--primary);
  text-decoration: none;
}

.logo-text .dot {
  color: var(--accent);
  font-size: 28px;
  vertical-align: middle;
  margin-left: 2px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(27, 90, 125, 0.08);
}

/* ===== Cat Hero ===== */
.cat-hero {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 60px) 0 70px;
  background: #142230;
  overflow: hidden;
}

.cat-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.5;
}

.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(20, 34, 48, 0.82) 0%, rgba(20, 34, 48, 0.45) 55%, rgba(20, 34, 48, 0.2) 100%);
  z-index: 1;
}

.cat-hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
}

.cat-hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 28px;
}

.cat-hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s ease;
}

.cat-hero-breadcrumb a:hover {
  color: #fff;
  text-decoration: underline;
}

.cat-hero-breadcrumb span.current {
  color: var(--accent);
}

.cat-hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: #F9FBFD;
  line-height: 1.2;
  letter-spacing: 2px;
  margin-bottom: 18px;
}

.cat-hero-desc {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.8;
  color: #C8D4DF;
  margin-bottom: 36px;
}

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

/* ===== Main ===== */
.main {
  padding: 80px 0 100px;
}

.page-block {
  margin-bottom: 80px;
}

.page-block:last-child {
  margin-bottom: 0;
}

/* split grid */
.split-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 40px;
  align-items: stretch;
}

.split-reverse {
  grid-template-columns: 2fr 3fr;
}

.split-grid .split-left,
.split-grid .split-right {
  min-width: 0;
}

/* module card */
.module-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.module-card .card-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.module-card .card-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* feature list */
.feature-list {
  display: flex;
  flex-direction: column;
}

.feature-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
}

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

.feature-item:hover {
  background: rgba(246, 248, 251, 0.6);
}

.feature-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(27, 90, 125, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 17px;
}

.feature-text {
  flex: 1;
}

.feature-text h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* data block */
.data-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  height: 100%;
}

.data-item {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 110px;
  border: 1px solid var(--border);
}

.data-num {
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.data-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* topic list */
.topic-list {
  display: flex;
  flex-direction: column;
}

.topic-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 12px;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}

.topic-item:hover {
  background: var(--bg);
}

.topic-rank {
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-muted);
  width: 32px;
  text-align: center;
  flex-shrink: 0;
}

.topic-item:nth-child(1) .topic-rank {
  color: var(--accent);
}

.topic-item:nth-child(2) .topic-rank {
  color: var(--primary-light);
}

.topic-item:nth-child(3) .topic-rank {
  color: var(--primary-light);
}

.topic-item:nth-child(4) .topic-rank {
  color: var(--primary-light);
}

.topic-info {
  flex: 1;
  min-width: 0;
}

.topic-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topic-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.topic-meta .badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(27, 90, 125, 0.08);
  color: var(--primary);
}

.topic-replies {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-light);
  flex-shrink: 0;
}

.topic-replies i {
  margin-right: 4px;
}

/* activity card */
.activity-wrap {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.activity-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.activity-cover {
  height: 150px;
  overflow: hidden;
  position: relative;
}

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

.activity-card:hover .activity-cover img {
  transform: scale(1.04);
}

.activity-cover .badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

.activity-info {
  padding: 16px 18px 18px;
}

.activity-info h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.activity-meta {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.activity-meta i {
  width: 16px;
  color: var(--primary-light);
}

/* journey / timeline */
.journey-block {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.journey-item {
  position: relative;
  padding: 0 0 30px 36px;
}

.journey-item:last-child {
  padding-bottom: 0;
}

.journey-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: -2px;
  width: 2px;
  background: var(--border);
}

.journey-item:last-child::before {
  display: none;
}

.journey-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--card);
  border: 3px solid var(--primary-light);
}

.journey-item .journey-stage {
  font-family: "DIN Alternate", "Roboto Mono", monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.journey-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 4px 0 6px;
}

.journey-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* quote card */
.quote-card {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 24px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
  position: relative;
}

.quote-card .quote-icon {
  color: var(--primary-light);
  font-size: 18px;
  margin-bottom: 10px;
  opacity: 0.6;
}

.quote-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 12px;
}

.quote-card .quote-author {
  font-size: 13px;
  color: var(--text-muted);
}

.rule-card {
  background: rgba(27, 90, 125, 0.04);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  border: 1px dashed rgba(27, 90, 125, 0.2);
}

.rule-card h5 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--primary);
}

.rule-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rule-card ul li {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.rule-card ul li i {
  color: var(--accent);
  font-size: 10px;
  transform: translateY(5px);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}

.faq-section .section-head {
  margin-bottom: 48px;
}

.faq-grid-tight {
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color 0.2s ease;
}

.faq-item.open {
  border-color: rgba(27, 90, 125, 0.2);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

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

.faq-question i {
  color: var(--primary-light);
  font-size: 14px;
  transition: transform 0.3s ease;
  margin-left: 16px;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  right: -120px;
  top: 50%;
  transform: translateY(-50%);
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.cta-section::after {
  content: "";
  position: absolute;
  right: 60px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-left {
  flex: 1;
}

.cta-title {
  font-size: 30px;
  font-weight: 700;
  color: #F9FBFD;
  line-height: 1.3;
  margin-bottom: 12px;
}

.cta-left p {
  font-size: 15px;
  color: #AEC8DB;
  line-height: 1.7;
  max-width: 520px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}

/* ===== Footer ===== */
.footer {
  background: #1F2A36;
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  position: relative;
}

.footer-grid::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-brand .logo-text {
  color: #fff;
}

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

.footer-brand .desc {
  font-size: 14px;
  color: #B0BCC8;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 380px;
}

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

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul li a {
  color: #B0BCC8;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-contact p {
  font-size: 14px;
  color: #B0BCC8;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.footer-contact p i {
  width: 16px;
  color: var(--accent);
  font-size: 13px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: #7E8E9D;
}

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

.footer-bottom .links a {
  color: #7E8E9D;
  font-size: 13px;
  text-decoration: none;
}

.footer-bottom .links a:hover {
  color: #fff;
  text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 1279px) {
  .container {
    padding: 0 24px;
    width: 96%;
  }
  .cat-hero-content,
  .cta-inner {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (max-width: 1023px) {
  .split-grid,
  .split-reverse {
    grid-template-columns: 1fr;
  }
  .split-right,
  .split-left {
    width: 100%;
  }
  .data-block {
    grid-template-columns: repeat(4, 1fr);
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .header-inner {
    padding: 0 16px;
    height: 60px;
  }
  .header {
    height: 60px;
  }
  .nav-left,
  .nav-right {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg);
    padding: 16px 24px;
    gap: 4px;
    z-index: 999;
    box-shadow: 0 12px 24px rgba(34, 48, 62, 0.1);
  }
  .nav-left {
    top: 60px;
    border-bottom: 1px solid var(--border);
  }
  .nav-right {
    top: 180px;
  }
  .header.menu-open .nav-left,
  .header.menu-open .nav-right {
    display: flex;
  }
  .nav-item {
    height: 48px;
    padding: 0 16px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }
  .nav-item::after {
    display: none;
  }
  .nav-item:hover,
  .nav-item.active {
    background: rgba(27, 90, 125, 0.08);
  }
  .logo-center {
    position: static;
    transform: none;
  }
  .logo-text {
    font-size: 22px;
  }
  .nav-toggle {
    display: flex;
  }
  .header-inner {
    justify-content: space-between;
  }
  .cat-hero {
    min-height: 300px;
    padding: 80px 0 48px;
  }
  .cat-hero h1 {
    font-size: 32px;
  }
  .cat-hero-desc {
    font-size: 15px;
    margin-bottom: 24px;
  }
  .cat-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .cat-hero-actions .btn {
    width: 100%;
  }
  .main {
    padding: 48px 0 64px;
  }
  .page-block {
    margin-bottom: 48px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .module-card {
    padding: 24px 20px;
  }
  .data-block {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .data-num {
    font-size: 24px;
  }
  .topic-item {
    padding: 12px 8px;
  }
  .topic-title {
    font-size: 14px;
  }
  .activity-cover {
    height: 120px;
  }
  .cta-section {
    padding: 48px 0;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .cta-title {
    font-size: 24px;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    flex: 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: auto;
  }
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
  .faq-section {
    padding: 48px 0;
  }
  .faq-question {
    padding: 16px 18px;
    font-size: 14px;
  }
  .faq-answer-inner {
    padding: 0 18px 16px;
    padding-top: 14px;
    font-size: 13px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .cat-hero-breadcrumb {
    font-size: 12px;
  }
  .data-block {
    gap: 10px;
  }
  .data-item {
    padding: 14px 10px;
    min-height: 90px;
  }
  .data-num {
    font-size: 20px;
  }
  .topic-meta {
    flex-wrap: wrap;
    gap: 6px;
  }
}