/* roulang page: index */
:root {
  --primary: #216FAD;
  --primary-light: #E9F2FA;
  --primary-lighter: #D5E6F6;
  --accent: #F59A2E;
  --accent-deep: #D98A22;
  --page-bg: #F5F8FC;
  --white: #FFFFFF;
  --text-main: #1F2A38;
  --text-secondary: #5C6B7A;
  --text-muted: #95A4B6;
  --border: #E3EBF3;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-btn: 30px;
  --shadow-card: 0 2px 12px rgba(33,111,173,0.05);
  --shadow-hover: 0 10px 28px rgba(33,111,173,0.10);
  --transition: 200ms ease;
  --container-max: 1200px;
  --header-h: 64px;
  --space-section: 80px;
  --space-mobile: 48px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background: var(--page-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-variant-numeric: tabular-nums;
}

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

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

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

input {
  font-family: inherit;
  outline: none;
}

ul, ol {
  list-style: none;
}

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

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 16px rgba(33,111,173,0.06);
}

.nav-wrapper {
  max-width: var(--container-max);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 24px;
}

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

.logo svg {
  width: 30px;
  height: 30px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: 8px;
  flex: 1;
}

.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 2px;
  position: relative;
  transition: color var(--transition);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

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

.nav-menu a.active {
  color: var(--primary);
  background: var(--primary-light);
  border-radius: 16px;
  padding: 6px 16px;
  font-weight: 600;
}

.nav-menu a.active::after {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  background: #F0F4F9;
  border-radius: 30px;
  height: 36px;
  padding: 0 14px;
  gap: 8px;
  border: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(33,111,173,0.15);
}

.search-box svg {
  width: 15px;
  height: 15px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 2;
  flex-shrink: 0;
}

.search-box input {
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-main);
  width: 170px;
  height: 100%;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  padding: 0 24px;
  height: 40px;
  border: 1px solid transparent;
}

.btn-accent:hover {
  background: #E08A1F;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(245,154,46,0.35);
}

.btn-accent:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.6);
  padding: 0 32px;
  height: 48px;
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--primary);
  padding: 0 30px;
  height: 50px;
  font-size: 15px;
  border: 1px solid transparent;
}

.btn-white:hover {
  background: #F0F4F9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,255,255,0.2);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 8px;
  border-radius: 8px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(33,111,173,0.08);
  z-index: 999;
  padding: 12px 24px 24px;
}

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

.mobile-menu a {
  display: block;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  transition: background var(--transition), color var(--transition);
}

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

.mobile-menu a.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  margin-top: var(--header-h);
  background-image: linear-gradient(90deg, rgba(31,42,56,0.85) 0%, rgba(31,42,56,0.6) 40%, rgba(31,42,56,0.15) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 60px 0;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,0.9);
  font-weight: 500;
  margin-bottom: 20px;
  background: rgba(255,255,255,0.1);
  padding: 6px 16px 6px 8px;
  border-radius: 24px;
  backdrop-filter: blur(4px);
}

.hero-tag::before {
  content: "";
  width: 3px;
  height: 16px;
  background: var(--accent);
  border-radius: 3px;
}

.hero h1 {
  font-size: 40px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.hero-subtitle {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-btns {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero .btn-accent {
  height: 48px;
  font-size: 16px;
  padding: 0 36px;
}

.hero-decoration {
  position: absolute;
  right: 8%;
  bottom: 40px;
  width: 160px;
  height: 200px;
  opacity: 0.3;
  z-index: 1;
  pointer-events: none;
}

.hero-decoration svg {
  width: 100%;
  height: 100%;
  stroke: rgba(255,255,255,0.9);
  fill: none;
  stroke-width: 1.5;
}

/* ===== Section Common ===== */
.section {
  padding: var(--space-section) 0;
}

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

.section-header h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.section-header h3 {
  font-size: 20px;
  font-weight: 600;
}

.section-header .section-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

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

.section-link:hover {
  gap: 8px;
  color: var(--primary);
}

/* ===== Quick Channel (Horizontal Scroll) ===== */
.channel-section {
  background: var(--white);
}

.channel-strip {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 12px;
}

.channel-strip::-webkit-scrollbar {
  display: none;
}

.channel-strip {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.channel-card {
  flex: 0 0 220px;
  scroll-snap-align: start;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

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

.channel-card .cover {
  height: 150px;
  overflow: hidden;
  position: relative;
  background: var(--primary-light);
}

.channel-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.channel-card .badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--accent);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 12px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(245,154,46,0.4);
}

.channel-card .card-body {
  padding: 14px 16px;
}

.channel-card .card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== Hot Content Grid ===== */
.hot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.content-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

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

.content-card .cover {
  height: 0;
  padding-top: 56.25%;
  position: relative;
  overflow: hidden;
  background: var(--primary-light);
}

.content-card .cover img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.content-card:hover .cover img {
  transform: scale(1.05);
}

.content-card .card-info {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 10px;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 12px;
  padding: 2px 10px;
}

.read-count {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
}

.read-count svg {
  width: 14px;
  height: 14px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 1.8;
}

.content-card .card-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--text-main);
  min-height: 48px;
}

.content-card .card-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: auto;
}

.card-footer .author {
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-footer .author svg {
  width: 14px;
  height: 14px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 1.8;
}

/* ===== Category Sections ===== */
.category-block {
  padding: var(--space-section) 0;
}

.category-block.alt-bg {
  background: var(--white);
}

.category-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.category-block-header h3 {
  font-size: 20px;
  font-weight: 700;
  position: relative;
  padding-left: 16px;
}

.category-block-header h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: var(--primary);
  border-radius: 4px;
}

.horizontal-card-list {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
}

.horizontal-card-list::-webkit-scrollbar {
  display: none;
}

.mini-card {
  flex: 0 0 280px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  scroll-snap-align: start;
}

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

.mini-card .thumb {
  flex-shrink: 0;
  width: 130px;
  height: 82px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--primary-light);
}

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

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

.mini-card .info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  flex: 1;
}

.mini-card .info .title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mini-card .info .desc {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.enter-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: 20px;
  transition: gap var(--transition);
}

.enter-link:hover {
  gap: 8px;
}

/* ===== CMS Section ===== */
.cms-section {
  padding: var(--space-section) 0;
}

.cms-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.cms-list-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

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

.cms-list-item:hover {
  background: var(--page-bg);
}

.cms-list-item:hover .cms-title {
  color: var(--primary);
}

.cms-date {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  min-width: 90px;
  flex-shrink: 0;
}

.cms-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}

.cms-cat {
  flex-shrink: 0;
}

.cms-empty {
  padding: 64px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 14px;
}

.cms-empty svg {
  width: 64px;
  height: 64px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
}

/* ===== Login Form ===== */
.login-strip {
  padding: var(--space-section) 0;
}

.login-form-row {
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.login-form-row .text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  flex: 1;
  min-width: 200px;
}

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

.login-input {
  flex: 1;
  min-width: 240px;
}

.login-input input {
  width: 100%;
  height: 44px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--white);
  padding: 0 16px;
  font-size: 14px;
  color: var(--text-main);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.login-input input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(33,111,173,0.15);
}

.login-input input::placeholder {
  color: var(--text-muted);
}

.login-form-row .btn-accent {
  height: 44px;
  padding: 0 36px;
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, #1B5387 0%, #216FAD 100%);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.cta-banner::after {
  content: "";
  position: absolute;
  top: -50px;
  right: -30px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.1);
  background: none;
  box-shadow: 0 0 0 30px rgba(255,255,255,0.03), 0 0 0 60px rgba(255,255,255,0.02);
}

.cta-text h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.cta-text p {
  font-size: 14px;
  color: rgba(255,255,255,0.85);
}

/* ===== FAQ ===== */
.faq-section {
  padding: var(--space-section) 0;
}

.faq-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
  align-items: start;
}

.faq-left h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.faq-left p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 4px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main);
  cursor: pointer;
  transition: color var(--transition);
  background: none;
  text-align: left;
  width: 100%;
}

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

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition);
  flex-shrink: 0;
}

.faq-icon svg {
  width: 12px;
  height: 12px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2.5;
  transition: transform var(--transition);
}

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

.faq-item.active .faq-icon svg {
  stroke: var(--white);
}

.faq-answer {
  display: none;
  padding: 0 4px 20px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
}

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

/* ===== Footer ===== */
.site-footer {
  background: #1F2A38;
  color: rgba(255,255,255,0.7);
  border-top: 3px solid var(--primary);
}

.footer-main {
  padding: 56px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer-brand .logo-text {
  color: var(--white);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

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

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

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

.footer-contact {
  font-size: 14px;
}

.footer-contact li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.55);
}

.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: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.footer-bottom a {
  color: rgba(255,255,255,0.4);
  margin-left: 16px;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-menu {
    gap: 16px;
  }
  .search-box input {
    width: 120px;
  }
  .hot-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .hero {
    min-height: 420px;
  }
  .hero h1 {
    font-size: 32px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .search-box {
    display: none;
  }
  .nav-actions .btn-accent {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .hero {
    min-height: 420px;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .section {
    padding: var(--space-mobile) 0;
  }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .section-header h2 {
    font-size: 24px;
  }
  .hot-grid {
    grid-template-columns: 1fr;
  }
  .channel-card {
    flex-basis: 180px;
  }
  .channel-card .cover {
    height: 120px;
  }
  .login-form-row {
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
  }
  .cta-banner .container {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .hero-decoration {
    opacity: 0.15;
  }
  .hero-btns {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-btns .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .logo-text {
    font-size: 16px;
  }
  .hero {
    min-height: 400px;
  }
  .hero h1 {
    font-size: 24px;
  }
  .hero-subtitle {
    font-size: 14px;
  }
  .hero .btn-accent {
    font-size: 15px;
    padding: 0 28px;
  }
  .login-form-row .btn-accent {
    width: 100%;
  }
  .cms-list-item {
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px;
  }
  .cms-date {
    min-width: 70px;
    font-size: 13px;
  }
  .cms-title {
    font-size: 15px;
    white-space: normal;
    flex: 1 1 100%;
  }
  .footer-main {
    padding: 40px 0 24px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #216FAD;
  --primary-light: #E9F2FA;
  --primary-border: #D5E6F6;
  --accent: #F59A2E;
  --bg: #F5F8FC;
  --white: #FFFFFF;
  --text: #1F2A38;
  --text-secondary: #5C6B7A;
  --text-muted: #95A4B6;
  --border: #E3EBF3;
  --radius-card: 10px;
  --radius-btn: 30px;
  --shadow-card: 0 2px 12px rgba(33,111,173,0.05);
  --shadow-hover: 0 10px 28px rgba(33,111,173,0.10);
  --transition: all .2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

button, input {
  font: inherit;
  border: none;
  outline: none;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-blue {
  background: var(--primary-light);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin: 0;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 6px 0 0;
}

.section-head .more-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.section-head .more-link:hover {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background: #E08A1D;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(245, 154, 46, 0.3);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.8);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-light {
  background: #fff;
  color: var(--primary);
}

.btn-light:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 255, 255, 0.18);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(33, 111, 173, 0.06);
  height: 64px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.logo svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.nav-menu {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 14px;
  border-radius: 30px;
  transition: var(--transition);
  white-space: nowrap;
}

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

.nav-menu a.active {
  background: var(--primary);
  color: #fff;
}

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

.search-box {
  width: 220px;
  height: 30px;
  border-radius: 30px;
  background: #F0F4F9;
  border: 1px solid transparent;
  padding: 0 14px;
  font-size: 13px;
  color: var(--text);
  transition: var(--transition);
}

.search-box::placeholder {
  color: var(--text-muted);
}

.search-box:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(33, 111, 173, 0.15);
}

.header-right .btn {
  height: 40px;
  padding: 0 24px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Page Hero */
.page-hero {
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 90px 0;
  color: #fff;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(75deg, rgba(31, 42, 56, 0.90) 15%, rgba(33, 111, 173, 0.55) 80%);
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: var(--transition);
}

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

.page-hero h1 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin: 0 0 12px;
}

.page-hero .page-sub {
  max-width: 640px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
}

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

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 24px;
  transition: var(--transition);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--primary);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}

.feature-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

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

.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 24px;
  height: 100%;
  position: relative;
  transition: var(--transition);
}

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

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}

.step-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

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

.scene-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
}

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

.scene-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
}

.scene-body {
  padding: 20px 24px 24px;
}

.scene-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 30px;
  margin-bottom: 14px;
}

.scene-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 8px;
}

.scene-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.device-tip {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  background: var(--primary-light);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-secondary);
}

.device-tip svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* FAQ */
.faq-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

.faq-left h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
  line-height: 1.3;
}

.faq-left p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
}

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  list-style: none;
  gap: 16px;
}

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

.faq-item summary .icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  transition: transform .25s ease, background .25s ease, color .25s ease;
  flex-shrink: 0;
  line-height: 1;
}

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

.faq-item .answer {
  padding: 0 20px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  border-top: 1px dashed var(--primary-border);
  margin: 0 20px 0;
  padding-left: 0;
  padding-right: 0;
}

/* CTA */
.cta-banner {
  background: linear-gradient(90deg, #1B5387, #216FAD);
  border-radius: 20px;
  padding: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
  overflow: hidden;
  color: #fff;
  margin: 80px 0;
}

.cta-banner::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 220px;
  height: 220px;
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner.cta-orange {
  background: linear-gradient(90deg, #D98A22, #F59A2E);
}

.cta-banner.cta-orange::after {
  border-color: rgba(255, 255, 255, 0.18);
}

.cta-banner .cta-text {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.3;
}

.cta-banner p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  line-height: 1.6;
}

.cta-banner .btn {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  background: #1F2A38;
  color: rgba(255, 255, 255, 0.75);
  border-top: 2px solid var(--primary);
  margin-top: 40px;
}

.footer-main {
  padding: 60px 0 40px;
}

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

.footer-brand .logo {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand .logo svg {
  stroke: #fff;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

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

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

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

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

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

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

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 24px;
    gap: 8px;
    box-shadow: 0 10px 24px rgba(33, 111, 173, 0.12);
    z-index: 99;
    align-items: stretch;
    border-bottom: 1px solid var(--border);
  }

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

  .nav-menu a {
    padding: 12px 16px;
    line-height: 1.4;
  }

  .header-right .search-box {
    display: none;
  }

  .header-right .btn {
    height: 36px;
    padding: 0 18px;
    font-size: 13px;
  }
}

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

  .section-head {
    margin-bottom: 28px;
  }

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

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

  .page-hero h1 {
    font-size: 28px;
  }

  .cta-banner {
    flex-direction: column;
    padding: 36px 24px;
    text-align: center;
    margin: 48px 0;
  }

  .cta-banner h2 {
    font-size: 22px;
  }

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

  .device-tip {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 20px;
  }

  .header-inner {
    padding: 0 20px;
    gap: 12px;
  }

  .logo {
    font-size: 16px;
  }

  .logo svg {
    width: 28px;
    height: 28px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-main {
    padding: 40px 0 32px;
  }

  .cta-banner {
    margin: 40px 0;
  }

  .cta-banner h2 {
    font-size: 20px;
  }
}

/* roulang page: article */
:root {
  --primary: #216FAD;
  --primary-light: #E9F2FA;
  --primary-lighter: #D5E6F6;
  --accent: #F59A2E;
  --bg: #F5F8FC;
  --white: #FFFFFF;
  --text: #1F2A38;
  --text-muted: #5C6B7A;
  --text-weak: #95A4B6;
  --border: #E3EBF3;
  --radius: 10px;
  --radius-btn: 30px;
  --shadow: 0 2px 12px rgba(33,111,173,0.05);
  --shadow-hover: 0 10px 28px rgba(33,111,173,0.10);
  --transition: 180ms ease;
  --container-max: 1200px;
  --header-height: 64px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
input {
  font-family: inherit;
}
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: all var(--transition);
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: #e08a1e;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245,154,46,.35);
}
.btn-white {
  background: #fff;
  color: var(--primary);
}
.btn-white:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}
.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 64px;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 16px rgba(33,111,173,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo svg {
  width: 30px;
  height: 30px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}
.nav-menu a {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 20px;
  transition: all var(--transition);
}
.nav-menu a:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-menu a.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}
.search-box {
  position: relative;
  width: 220px;
}
.search-box input {
  width: 100%;
  height: 36px;
  padding: 0 14px 0 36px;
  border-radius: 30px;
  border: 1px solid transparent;
  background: #F0F4F9;
  font-size: 13px;
  color: var(--text);
  transition: all var(--transition);
}
.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(33,111,173,.15);
}
.search-box svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  stroke: var(--text-weak);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
.nav-toggle .icon-close {
  display: none;
}
.nav-toggle[aria-expanded="true"] .icon-open {
  display: none;
}
.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}
.breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  margin-top: 64px;
}
.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-weak);
  min-width: 0;
}
.breadcrumb-inner a {
  color: var(--text-muted);
  transition: color var(--transition);
  flex-shrink: 0;
}
.breadcrumb-inner a:hover {
  color: var(--primary);
}
.breadcrumb-inner .sep {
  color: var(--text-weak);
  flex-shrink: 0;
}
.breadcrumb-inner .current {
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.article-page {
  padding: 48px 0 24px;
}
.article-layout {
  max-width: 860px;
  margin: 0 auto;
}
.article-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.article-inner {
  padding: 48px 56px;
}
.article-header .category-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 30px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
}
.article-header h1 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 20px;
  word-break: break-word;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: var(--text-muted);
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-variant-numeric: tabular-nums;
}
.article-meta svg {
  width: 15px;
  height: 15px;
  stroke: var(--text-weak);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.article-content {
  padding-top: 32px;
}
.article-content p {
  margin-bottom: 1.5em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 1.6em 0 .8em;
  line-height: 1.4;
  color: var(--text);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 1.5em 0 .6em;
  line-height: 1.4;
  color: var(--text);
}
.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 1.4em 0 .5em;
  color: var(--text);
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.5em;
  padding-left: 1.4em;
}
.article-content li {
  margin-bottom: .5em;
  color: var(--text-muted);
  line-height: 1.7;
}
.article-content img {
  border-radius: 10px;
  margin: 1.5em auto;
  max-height: 500px;
  object-fit: cover;
  width: auto;
  background: var(--primary-light);
}
.article-content img.img-error {
  opacity: 0;
  min-height: 160px;
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin: 1.5em 0;
  color: var(--text-muted);
}
.article-content blockquote p {
  margin-bottom: 0;
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: #e08a1e;
}
.article-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 24px 0 0;
  margin-top: 32px;
  border-top: 1px solid var(--border);
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tags span {
  padding: 5px 14px;
  border: 1px solid var(--primary-lighter);
  border-radius: 30px;
  font-size: 12px;
  color: var(--primary);
  background: var(--primary-light);
}
.share-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}
.share-buttons a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition);
}
.share-buttons a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}
.share-buttons svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.not-found {
  text-align: center;
  padding: 80px 20px;
}
.not-found .nf-icon {
  width: 64px;
  height: 64px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  margin: 0 auto 16px;
}
.not-found p {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.not-found .btn {
  display: inline-flex;
}
.related-section {
  padding: 56px 0 24px;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}
.section-head h2 span {
  color: var(--primary);
}
.section-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition);
}
.section-link:hover {
  color: #e08a1e;
}
.section-link svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--transition);
}
.section-link:hover svg {
  transform: translateX(3px);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.related-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all var(--transition);
  display: block;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.media-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--primary-light);
  overflow: hidden;
}
.media-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .media-cover img {
  transform: scale(1.03);
}
.media-cover img.img-error {
  display: none;
}
.media-cover .img-fallback {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 32px;
  font-weight: 700;
}
.media-cover img.img-error + .img-fallback {
  display: flex;
}
.related-body {
  padding: 16px 18px 18px;
}
.related-body h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 8px;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}
.related-card:hover .related-body h3 {
  color: var(--primary);
}
.related-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-weak);
}
.back-link-wrap {
  text-align: center;
  margin: 40px 0 8px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
}
.back-link svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--transition);
}
.back-link:hover {
  color: var(--primary);
}
.back-link:hover svg {
  transform: translateX(-3px);
}
.cta-banner {
  padding: 24px 0 48px;
}
.cta-inner {
  background-image: linear-gradient(120deg, rgba(27,83,135,.95), rgba(33,111,173,.88)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  border-radius: 16px;
  padding: 44px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 30px rgba(33,111,173,.18);
}
.cta-inner::after {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,.1);
  box-shadow: 0 0 0 30px rgba(255,255,255,.05), 0 0 0 60px rgba(255,255,255,.03);
  pointer-events: none;
}
.cta-text h2 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.4;
}
.cta-text p {
  font-size: 14px;
  color: rgba(255,255,255,.85);
  max-width: 540px;
  line-height: 1.7;
}
.cta-banner .btn-white {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}
.faq-section {
  padding: 0 0 72px;
}
.faq-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 56px;
}
.faq-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.faq-head p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
}
.faq-list {
  display: flex;
  flex-direction: column;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 15px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  position: relative;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--text-weak);
  border-radius: 2px;
  transition: all var(--transition);
}
.faq-icon::before {
  width: 14px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 14px;
}
.faq-item.open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
.faq-item.open .faq-icon::before {
  background: var(--primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
}
.faq-answer-inner {
  padding: 0 0 16px;
}
.faq-item.open .faq-answer {
  max-height: 400px;
}
.site-footer {
  background: #1F2A38;
  color: rgba(255,255,255,.6);
  padding-top: 8px;
}
.footer-main {
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.75;
  margin-top: 14px;
  max-width: 340px;
  color: rgba(255,255,255,.6);
}
.footer-brand .logo-text {
  color: #fff;
}
.footer-col h4 {
  font-size: 14px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li a {
  color: rgba(255,255,255,.6);
  font-size: 13px;
  transition: color var(--transition);
}
.footer-col ul li a:hover {
  color: #fff;
}
.footer-col ul li {
  color: rgba(255,255,255,.6);
  font-size: 13px;
  line-height: 1.6;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a {
  color: rgba(255,255,255,.5);
  transition: color var(--transition);
}
.footer-bottom a:hover {
  color: #fff;
}
@media (max-width: 1024px) {
  .search-box {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 30px rgba(33,111,173,.08);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all .25s ease;
    z-index: 99;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-menu a {
    width: 100%;
    padding: 12px 14px;
    border-radius: 8px;
    line-height: 1.4;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .article-inner {
    padding: 32px 24px;
  }
  .article-header h1 {
    font-size: 30px;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 28px;
  }
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .faq-head p {
    max-width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .logo-text {
    font-size: 15px;
  }
  .header-inner {
    gap: 12px;
  }
  .header-actions {
    gap: 8px;
  }
  .btn-sm {
    padding: 7px 14px;
    font-size: 13px;
  }
  .breadcrumb-inner .current {
    max-width: 160px;
  }
  .article-page {
    padding: 28px 0 16px;
  }
  .article-inner {
    padding: 24px 18px;
  }
  .article-header h1 {
    font-size: 28px;
  }
  .article-meta {
    gap: 14px;
    font-size: 13px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .section-head h2 {
    font-size: 22px;
  }
  .cta-inner {
    padding: 28px 20px;
    border-radius: 12px;
  }
  .cta-text h2 {
    font-size: 20px;
  }
  .cta-text p {
    font-size: 13px;
  }
  .cta-banner .btn-white {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-main {
    padding: 40px 0 24px;
  }
  .article-content h2 {
    font-size: 20px;
  }
  .article-content h3 {
    font-size: 18px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #216FAD;
  --primary-light: #E9F2FA;
  --primary-lighter: #D5E6F6;
  --accent: #F59A2E;
  --bg: #F5F8FC;
  --white: #FFFFFF;
  --text: #1F2A38;
  --text-muted: #5C6B7A;
  --text-placeholder: #95A4B6;
  --border: #E3EBF3;
  --radius-card: 10px;
  --radius-btn: 30px;
  --radius-input: 8px;
  --shadow-card: 0 2px 12px rgba(33,111,173,0.05);
  --shadow-card-hover: 0 10px 28px rgba(33,111,173,0.10);
  --shadow-header: 0 4px 16px rgba(33,111,173,0.06);
  --transition: 200ms ease;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  padding-top: 64px;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button,
input {
  font-family: inherit;
  font-size: 100%;
  line-height: 1;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 80px 0;
}
.section-head {
  max-width: 680px;
  margin: 0 auto 44px;
  text-align: center;
}
.section-head.left {
  text-align: left;
  margin: 0 0 28px;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 30px;
  margin-bottom: 12px;
  font-weight: 600;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 8px;
  color: var(--text);
}
.section-head p {
  font-size: 15px;
  color: var(--text-muted);
  margin: 0;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-header);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 20px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo svg {
  width: 32px;
  height: 32px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}
.nav-menu {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: 28px;
}
.nav-menu a {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  padding: 6px 4px;
  border-radius: 30px;
  transition: color var(--transition), background var(--transition);
}
.nav-menu a:hover {
  color: var(--primary);
  background: rgba(33,111,173,0.06);
}
.nav-menu a.active {
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 16px;
  font-weight: 600;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.search-box input {
  width: 220px;
  height: 30px;
  border-radius: 30px;
  border: 1px solid transparent;
  background: #F0F4F9;
  padding: 0 14px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(33,111,173,0.15);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
  border-radius: 30px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn-accent {
  background: var(--accent);
  color: var(--white);
  height: 40px;
  padding: 0 22px;
  font-size: 14px;
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(245,154,46,0.30);
}
.btn-white {
  background: var(--white);
  color: var(--primary);
  height: 50px;
  padding: 0 34px;
  font-size: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0,0,0,0.12);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--white);
  cursor: pointer;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Page Banner */
.page-banner {
  position: relative;
  min-height: 200px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(31,42,56,0.88) 0%, rgba(31,42,56,0.55) 55%, rgba(31,42,56,0.20) 100%);
}
.banner-content {
  position: relative;
  z-index: 2;
  padding: 40px 24px;
}
.breadcrumb {
  font-size: 12px;
  color: rgba(255,255,255,0.72);
  margin-bottom: 10px;
}
.breadcrumb a {
  color: rgba(255,255,255,0.86);
}
.breadcrumb a:hover {
  color: var(--white);
}
.breadcrumb .sep {
  margin: 0 6px;
}
.breadcrumb .current {
  color: var(--white);
}
.banner-content h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  color: var(--white);
}
.banner-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  margin: 8px 0 0;
  max-width: 560px;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--text);
}
.feature-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0;
}
.stats-band {
  margin-top: 48px;
  background: var(--primary-light);
  border-radius: 16px;
  padding: 28px 32px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item strong {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stat-item span {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Content Layout */
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}
.content-sidebar {
  position: sticky;
  top: 88px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.media-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.media-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.media-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--primary-light);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cover-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  font-weight: 700;
  color: var(--primary);
  z-index: 0;
}
.media-cover img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.media-card:hover .media-cover img {
  transform: scale(1.03);
}
.media-body {
  padding: 18px 20px 20px;
}
.media-tags {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.pill {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: 30px;
  font-weight: 600;
}
.read-num {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-placeholder);
  font-variant-numeric: tabular-nums;
}
.read-num svg {
  width: 14px;
  height: 14px;
}
.media-body h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 6px;
  color: var(--text);
}
.media-body p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.process-head {
  margin-top: 56px;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.process-step {
  background: var(--primary-light);
  border-radius: var(--radius-card);
  padding: 26px 20px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-variant-numeric: tabular-nums;
}
.process-step h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--text);
}
.process-step p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
}

/* Sidebar */
.sidebar-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 22px;
  box-shadow: var(--shadow-card);
}
.sidebar-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.hot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: hot;
}
.hot-list li {
  counter-increment: hot;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 0;
}
.hot-list li::before {
  content: counter(hot);
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.hot-list a {
  font-size: 14px;
  line-height: 1.4;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}
.hot-list a:hover {
  color: var(--primary);
}
.cat-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cat-list a {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  transition: background var(--transition), color var(--transition);
}
.cat-list a:hover {
  background: var(--bg);
  color: var(--primary);
}
.cat-list a.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

/* FAQ */
.faq-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.faq-grid {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 48px;
}
.faq-heading h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--text);
}
.faq-heading p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: color var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  position: relative;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}
.faq-icon::before {
  content: "+";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
}
.faq-item.open .faq-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotate(180deg);
}
.faq-item.open .faq-icon::before {
  content: "×";
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-item.open .faq-answer {
  max-height: 400px;
}
.faq-answer p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
  border-top: 1px dashed var(--border);
  padding: 12px 0 16px;
}

/* CTA */
.cta-banner {
  padding: 60px 0;
  background: linear-gradient(135deg, #D98A22, #F59A2E);
  position: relative;
  overflow: hidden;
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: rgba(255,255,255,0.10);
  border-radius: 16px;
  padding: 40px 44px;
}
.cta-text h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 6px;
}
.cta-text p {
  font-size: 14px;
  color: rgba(255,255,255,0.88);
  margin: 0;
}

/* Footer */
.site-footer {
  background: #1F2A38;
  color: rgba(255,255,255,0.8);
}
.footer-main {
  padding: 48px 0 32px;
  border-top: 3px solid var(--primary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
  max-width: 320px;
  margin: 0;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin: 0 0 14px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  font-size: 14px;
  line-height: 2;
}
.footer-col a {
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}
.footer-col a:hover {
  color: var(--white);
}
.footer-bottom {
  padding: 16px 0;
  border-top: 1px solid rgba(255,255,255,0.10);
  font-size: 13px;
  color: rgba(255,255,255,0.50);
}
.footer-bottom a {
  color: rgba(255,255,255,0.60);
}
.footer-bottom a:hover {
  color: rgba(255,255,255,0.90);
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-header);
    flex-direction: column;
    padding: 8px 24px 16px;
    gap: 0;
    display: none;
    z-index: 99;
  }
  .site-header.nav-open .nav-menu {
    display: flex;
  }
  .nav-menu a {
    line-height: 44px;
    padding: 0 10px;
    border-radius: 8px;
  }
  .nav-menu a.active {
    height: auto;
    line-height: 44px;
    border-radius: 8px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .content-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }
  .content-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .search-box {
    display: none;
  }
  .page-banner {
    min-height: 180px;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 24px;
  }
}
@media (max-width: 640px) {
  body {
    padding-top: 56px;
  }
  .site-header,
  .header-inner {
    height: 56px;
  }
  .header-inner {
    gap: 12px;
  }
  .logo svg {
    width: 28px;
    height: 28px;
  }
  .logo-text {
    font-size: 16px;
  }
  .btn-accent {
    height: 36px;
    padding: 0 16px;
    font-size: 13px;
  }
  .nav-menu {
    top: 56px;
  }
  .section {
    padding: 48px 0;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .banner-content h1 {
    font-size: 26px;
  }
  .banner-content {
    padding: 32px 24px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .media-grid {
    grid-template-columns: 1fr;
  }
  .process-steps {
    grid-template-columns: 1fr;
  }
  .content-sidebar {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    padding: 28px 20px;
  }
  .cta-text h2 {
    font-size: 20px;
  }
  .btn-white {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* roulang page: category3 */
:root {
            --primary: #216FAD;
            --primary-light: #E9F2FA;
            --primary-border: #D5E6F6;
            --accent: #F59A2E;
            --accent-dark: #D98A22;
            --bg-body: #F5F8FC;
            --bg-white: #FFFFFF;
            --bg-deep: #1F2A38;
            --text-main: #1F2A38;
            --text-sub: #5C6B7A;
            --text-weak: #95A4B6;
            --border: #E3EBF3;
            --radius-card: 10px;
            --radius-pill: 30px;
            --radius-input: 8px;
            --shadow-card: 0 2px 12px rgba(33, 111, 173, 0.05);
            --shadow-hover: 0 10px 28px rgba(33, 111, 173, 0.10);
            --container: 1200px;
            --space-section: 80px;
            --transition: all .2s ease;
        }

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

        html {
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", system-ui, "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* 顶部导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            background: #fff;
            border-bottom: 1px solid var(--border);
            transition: box-shadow .2s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(33, 111, 173, 0.06);
        }

        .header-bar {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

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

        .logo svg {
            width: 32px;
            height: 32px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            line-height: 1.4;
        }

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

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .search-box {
            width: 220px;
            height: 30px;
            background: #F0F4F9;
            border-radius: var(--radius-pill);
            padding: 0 14px;
            font-size: 13px;
            color: var(--text-main);
            transition: var(--transition);
        }

        .search-box::placeholder {
            color: var(--text-weak);
        }

        .search-box:focus {
            background: #fff;
            box-shadow: 0 0 0 3px rgba(33, 111, 173, 0.15);
        }

        .btn-accent {
            height: 40px;
            padding: 0 24px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(245, 154, 46, 0.3);
            color: #fff;
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border-radius: 8px;
            transition: var(--transition);
        }

        .menu-toggle span {
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: var(--primary-light);
        }

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

        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }

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

        .mobile-drawer {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            padding: 16px 24px 24px;
            box-shadow: 0 20px 40px rgba(33, 111, 173, 0.12);
            border-bottom: 1px solid var(--border);
            transform: translateY(-110%);
            transition: transform .3s ease;
            z-index: 99;
        }

        .mobile-drawer.open {
            transform: translateY(0);
        }

        .mobile-drawer a {
            display: block;
            line-height: 44px;
            font-size: 15px;
            color: var(--text-main);
            border-bottom: 1px solid #F0F4F9;
            padding: 0 8px;
            border-radius: 6px;
        }

        .mobile-drawer a:last-child {
            border-bottom: none;
        }

        .mobile-drawer a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        /* 页面横幅 */
        .page-banner {
            margin-top: 64px;
            background-size: cover;
            background-position: center;
            position: relative;
            height: 200px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(31, 42, 56, 0.86) 0%, rgba(31, 42, 56, 0.62) 50%, rgba(31, 42, 56, 0.3) 100%);
        }

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

        .breadcrumb {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

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

        .page-banner h1 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .page-banner p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
        }

        /* 数据条 */
        .stats-strip {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding: 28px 0;
        }

        .stat-item {
            text-align: center;
            padding: 8px 0;
        }

        .stat-item strong {
            display: block;
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
        }

        .stat-item span {
            display: block;
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 4px;
        }

        /* 内容区 */
        .content-section {
            padding: var(--space-section) 0 40px;
        }

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 24px;
            align-items: start;
        }

        .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);
        }

        .section-head span {
            font-size: 13px;
            color: var(--text-weak);
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

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

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

        .content-image {
            width: 220px;
            height: 130px;
            flex-shrink: 0;
            overflow: hidden;
            background: var(--primary-light);
            position: relative;
        }

        .content-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

        .content-card:hover .content-image img {
            transform: scale(1.03);
        }

        .content-body {
            padding: 16px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }

        .pill {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            border-radius: 4px;
            font-weight: 600;
        }

        .views {
            font-size: 12px;
            color: var(--text-weak);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .views svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: var(--text-weak);
        }

        .content-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .content-body h3 a {
            color: var(--text-main);
        }

        .content-body h3 a:hover {
            color: var(--primary);
        }

        .content-body p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .card-foot {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 10px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .card-foot .date {
            font-variant-numeric: tabular-nums;
        }

        .card-foot .author {
            color: var(--text-sub);
        }

        /* 侧边栏 */
        .content-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .side-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
        }

        .side-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
            color: var(--text-main);
        }

        .hot-card ol {
            counter-reset: hot;
        }

        .hot-card li {
            counter-increment: hot;
            display: flex;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            align-items: flex-start;
        }

        .hot-card li:last-child {
            border-bottom: none;
        }

        .hot-card li::before {
            content: counter(hot);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.4;
            width: 20px;
            flex-shrink: 0;
            text-align: center;
        }

        .hot-card li a {
            font-size: 13px;
            color: var(--text-main);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-card li a:hover {
            color: var(--primary);
        }

        .category-card ul {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .category-card a {
            display: block;
            padding: 9px 12px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 8px;
        }

        .category-card a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .category-card a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        /* 分页 */
        .pagination-wrap {
            padding: 20px 0 var(--space-section);
        }

        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
        }

        .pagination a {
            height: 38px;
            min-width: 38px;
            padding: 0 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-sub);
            background: #fff;
        }

        .pagination a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        .pagination a.current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .pagination a.disabled {
            color: var(--text-weak);
            pointer-events: none;
            opacity: .6;
        }

        /* 特色板块 */
        .features-section {
            padding: var(--space-section) 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-title {
            text-align: center;
            margin-bottom: 36px;
        }

        .section-title h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
        }

        .section-title p {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 8px;
        }

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

        .feature-card {
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition);
        }

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

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .feature-icon svg {
            width: 26px;
            height: 26px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* 流程 */
        .flow-section {
            padding: var(--space-section) 0;
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .flow-item {
            text-align: center;
            position: relative;
            padding: 8px;
        }

        .flow-item::after {
            content: "";
            position: absolute;
            top: 50%;
            right: -14px;
            width: 28px;
            height: 1px;
            background: var(--primary-border);
        }

        .flow-item:last-child::after {
            display: none;
        }

        .flow-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-variant-numeric: tabular-nums;
            box-shadow: 0 6px 18px rgba(33, 111, 173, 0.25);
        }

        .flow-item h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .flow-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 40px;
            align-items: start;
        }

        .faq-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
        }

        .faq-head p {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 12px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .faq-toggle {
            width: 100%;
            height: 52px;
            padding: 0 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            text-align: left;
            background: transparent;
        }

        .faq-toggle .icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: #fff;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform .25s ease, background .25s ease, color .25s ease;
        }

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

        .faq-answer {
            display: none;
            padding: 0 18px 16px;
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
            border-top: 1px dashed var(--border);
            margin: 0 12px;
        }

        .faq-item.open .faq-answer {
            display: block;
            padding-top: 12px;
        }

        /* CTA */
        .cta-banner {
            padding: 0;
        }

        .cta-banner.accent {
            background: linear-gradient(100deg, var(--accent-dark), var(--accent));
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            padding: 44px 0;
            flex-wrap: wrap;
        }

        .cta-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
        }

        .cta-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 4px;
        }

        .btn-white {
            height: 50px;
            padding: 0 32px;
            background: #fff;
            color: var(--accent-dark);
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            white-space: nowrap;
            transition: var(--transition);
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, 0.15);
            color: var(--accent-dark);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.7);
            border-top: 3px solid var(--primary);
        }

        .footer-main {
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand .logo-text {
            color: #fff;
            font-size: 17px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 10px;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }

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

        .footer-contact li {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

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

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 24px 24px;
                box-shadow: 0 20px 40px rgba(33, 111, 173, 0.12);
                border-bottom: 1px solid var(--border);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                display: block;
                line-height: 44px;
                padding: 0 12px;
                font-size: 15px;
            }
            .search-box {
                width: 140px;
            }
            .menu-toggle {
                display: flex;
            }
            .content-layout {
                grid-template-columns: 1fr;
            }
            .content-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 16px;
            }
            .flow-item::after {
                display: none;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-actions .btn-accent {
                display: none;
            }
        }

        @media (max-width: 640px) {
            :root {
                --space-section: 48px;
            }
            .logo-text {
                font-size: 15px;
            }
            .header-bar {
                gap: 12px;
            }
            .logo svg {
                width: 28px;
                height: 28px;
            }
            .search-box {
                display: none;
            }
            .page-banner {
                height: 160px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item strong {
                font-size: 22px;
            }
            .content-card {
                flex-direction: column;
            }
            .content-image {
                width: 100%;
                height: 160px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .content-sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .flow-steps {
                grid-template-columns: 1fr;
            }
            .cta-inner {
                flex-direction: column;
                text-align: center;
                padding: 32px 0;
            }
            .pagination a {
                min-width: 34px;
                height: 34px;
                padding: 0 10px;
                font-size: 13px;
            }
            .faq-toggle {
                font-size: 13px;
                padding: 0 14px;
                height: 48px;
            }
        }

        @media (max-width: 375px) {
            .header-actions {
                gap: 6px;
            }
            .logo-text {
                font-size: 13px;
            }
            .btn-accent {
                height: 36px;
                padding: 0 16px;
                font-size: 13px;
            }
            .faq-layout {
                gap: 16px;
            }
            .faq-toggle {
                font-size: 12px;
            }
        }