/* roulang page: index */
:root {
  --primary: #6c5ce7;
  --primary-dark: #574bbd;
  --primary-light: #8e7cf3;
  --accent: #fdcb6e;
  --accent-2: #00cec9;
  --bg: #f6f8fc;
  --bg-deep: #0f172a;
  --card: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(15, 23, 42, .08);
  --shadow-hover: 0 16px 40px rgba(15, 23, 42, .16);
  --space-section: 88px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
  list-style: none;
}

::selection {
  background: rgba(108, 92, 231, .2);
}

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

section[id] {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.grid-container {
  max-width: 1220px;
  padding-left: 20px;
  padding-right: 20px;
}

.page-wrapper {
  overflow: hidden;
}

.section {
  padding: var(--space-section) 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

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

.section-tag {
  display: inline-block;
  background: rgba(108, 92, 231, .1);
  color: var(--primary);
  padding: 5px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  line-height: 1.4;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(108, 92, 231, .3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(108, 92, 231, .42);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .65);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, .16);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: #0f172a;
}
.btn-accent:hover {
  background: #f5c04e;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(253, 203, 110, .35);
}

.btn-light {
  background: #fff;
  color: var(--primary);
}
.btn-light:hover {
  background: #f1f4fb;
  transform: translateY(-2px);
}

.card-hover {
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: var(--header-h);
  padding-top: 10px;
  padding-bottom: 10px;
}

.site-brand {
  flex-shrink: 0;
}

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

.brand-mark {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 19px;
  box-shadow: 0 6px 16px rgba(108, 92, 231, .35);
  transition: transform .3s;
}

.brand-logo:hover .brand-mark {
  transform: rotate(-6deg) scale(1.04);
}

.brand-text {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: .3px;
  color: var(--text);
}

.header-search {
  flex: 1;
  max-width: 520px;
  margin: 0 auto;
}

.search-form {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 16px;
  transition: border-color .3s, box-shadow .3s;
}

.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(108, 92, 231, .12);
}

.search-icon {
  color: var(--text-muted);
  margin-right: 10px;
  font-size: 15px;
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 9px 0;
  font-size: 14px;
  color: var(--text);
  min-width: 0;
}

.search-input::placeholder {
  color: #a0aec0;
}

.search-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .3s;
  white-space: nowrap;
}

.search-btn:hover {
  background: var(--primary-dark);
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all .3s;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(108, 92, 231, .08);
}

.nav-link.active {
  color: #fff;
  background: var(--primary);
  font-weight: 600;
  box-shadow: 0 6px 14px rgba(108, 92, 231, .32);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  border-radius: 8px;
  transition: background .3s;
}

.nav-toggle:hover {
  background: rgba(108, 92, 231, .08);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s;
}

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

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

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

/* ===== Hero ===== */
.hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 130px 0 110px;
  color: #fff;
  text-align: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, .88), rgba(76, 29, 149, .75));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 999px;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 26px;
  color: #fff;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: -1px;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .25);
}

.hero h1 .highlight {
  background: linear-gradient(120deg, var(--accent), #ff9f43);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .hero-sub {
  font-size: 18px;
  max-width: 660px;
  margin: 0 auto 36px;
  opacity: .92;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 46px;
  font-size: 14px;
  color: rgba(255, 255, 255, .85);
  flex-wrap: wrap;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

/* ===== Overview ===== */
.overview-section {
  background: var(--bg);
}

.cards-row {
  align-items: stretch;
}

.cards-row .cell {
  display: flex;
}

.cards-row .cell > * {
  width: 100%;
}

.overview-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow);
  transition: all .35s ease;
  height: 100%;
}

.overview-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(108, 92, 231, .25);
}

.overview-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 22px;
}

.overview-card--purple .overview-icon {
  background: rgba(108, 92, 231, .12);
  color: var(--primary);
}

.overview-card--amber .overview-icon {
  background: rgba(253, 203, 110, .22);
  color: #d97706;
}

.overview-card--teal .overview-icon {
  background: rgba(0, 206, 201, .16);
  color: #0d9488;
}

.overview-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.overview-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
}

.overview-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: gap .3s;
}

.overview-link:hover {
  gap: 10px;
}

/* ===== Categories ===== */
.categories-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.category-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 300px;
  border-radius: var(--radius);
  overflow: hidden;
  background-size: cover;
  background-position: center;
  color: #fff;
  box-shadow: var(--shadow);
  transition: transform .35s ease, box-shadow .35s ease;
}

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

.category-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 20%, rgba(15, 23, 42, .45) 60%, rgba(15, 23, 42, .88));
  transition: background .3s;
}

.category-card:hover::after {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 5%, rgba(15, 23, 42, .5) 55%, rgba(15, 23, 42, .92));
}

.category-body {
  position: relative;
  z-index: 2;
  padding: 30px;
  width: 100%;
}

.category-tag {
  display: inline-block;
  background: rgba(255, 255, 255, .2);
  border: 1px solid rgba(255, 255, 255, .3);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  color: #fff;
}

.category-body h3 {
  font-size: 25px;
  font-weight: 800;
  margin: 12px 0 8px;
}

.category-body p {
  font-size: 14px;
  opacity: .88;
  margin-bottom: 18px;
  line-height: 1.65;
  max-width: 420px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .3);
  padding: 9px 20px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: all .3s;
}

.category-card:hover .category-link {
  background: var(--accent);
  color: #0f172a;
  border-color: var(--accent);
}

/* ===== Hot ===== */
.hot-section {
  background: var(--bg);
}

.hot-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all .35s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.hot-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(108, 92, 231, .2);
}

.hot-cover {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.hot-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

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

.hot-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, .94);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .12);
}

.hot-badge i {
  color: #ff6b6b;
}

.hot-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.hot-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.hot-body > p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex: 1;
}

.hot-progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.hot-progress-label span:last-child {
  font-weight: 700;
  color: var(--primary);
}

.progress-wrap {
  background: #eef1f6;
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent-2));
  transition: width .8s ease;
}

.hot-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid #f1f5f9;
  font-size: 13px;
  color: var(--text-muted);
}

.hot-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hot-meta a {
  color: var(--primary);
  font-weight: 600;
  transition: gap .3s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hot-meta a:hover {
  gap: 10px;
}

/* ===== Latest ===== */
.latest-section {
  background: #fff;
}

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

.latest-head .section-head {
  margin-bottom: 0;
}

.latest-item {
  display: flex;
  gap: 18px;
  padding: 24px 22px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all .3s ease;
  height: 100%;
}

.latest-item:hover {
  border-color: rgba(108, 92, 231, .3);
  background: #fff;
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.item-index {
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  min-width: 50px;
  font-variant-numeric: tabular-nums;
}

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

.item-tag {
  display: inline-block;
  background: rgba(108, 92, 231, .1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.item-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 6px;
}

.item-body h3 a {
  transition: color .3s;
}

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

.item-body > p {
  font-size: 14px;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.6;
}

.item-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-muted);
}

.item-meta time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-read {
  color: var(--primary);
  font-weight: 600;
}

.empty-tip {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 16px;
}

/* ===== Stats ===== */
.stats-section {
  position: relative;
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: var(--space-section) 0;
}

.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 23, 42, .88), rgba(76, 29, 149, .8));
}

.stats-wrap {
  position: relative;
  z-index: 2;
}

.stat-block {
  text-align: center;
  padding: 34px 20px;
}

.stat-num {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(135deg, #fff 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  margin-top: 10px;
  font-size: 15px;
  opacity: .85;
}

.stat-divider {
  width: 36px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
  margin: 14px auto 0;
}

/* ===== Process ===== */
.process-section {
  background: var(--bg);
}

.process-step {
  text-align: center;
  padding: 30px 24px;
  position: relative;
}

.process-step::after {
  content: '';
  position: absolute;
  top: 58px;
  right: -8px;
  width: 32px;
  height: 2px;
  background: #dbe2ed;
}

.process-step:last-child::after {
  display: none;
}

.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(108, 92, 231, .3);
  margin-bottom: 20px;
  transition: transform .3s;
}

.process-step:hover .step-num {
  transform: scale(1.08) rotate(-4deg);
}

.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 240px;
  margin: 0 auto;
}

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

.faq-side {
  padding-right: 20px;
}

.faq-side h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}

.faq-side p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
}

.faq-accordion {
  background: transparent;
}

.faq-accordion .accordion-item {
  background: var(--card);
  border: 1px solid var(--border) !important;
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(15, 23, 42, .04);
  transition: border-color .3s, box-shadow .3s;
}

.faq-accordion .accordion-item:hover {
  border-color: rgba(108, 92, 231, .3) !important;
}

.faq-accordion .accordion-item.is-active {
  border-color: rgba(108, 92, 231, .4) !important;
  box-shadow: 0 8px 24px rgba(108, 92, 231, .1);
}

.faq-accordion .accordion-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: var(--card);
  padding: 20px 24px;
  border-bottom: 1px solid transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color .3s, background .3s;
}

.faq-accordion .accordion-title:hover {
  color: var(--primary);
  background: #fafbff;
}

.faq-accordion .accordion-item.is-active > .accordion-title {
  color: var(--primary);
  border-bottom-color: var(--border);
  background: #fafbff;
}

.faq-accordion .accordion-title::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--text-muted);
  transition: transform .3s;
}

.faq-accordion .accordion-item.is-active .accordion-title::after {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-accordion .accordion-content {
  padding: 4px 24px 20px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  background: #fbfcff;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 100px 0;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(87, 75, 189, .92), rgba(15, 23, 42, .9));
}

.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 640px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  opacity: .9;
  line-height: 1.7;
}

.cta-form {
  display: flex;
  gap: 10px;
  margin-top: 32px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 999px;
  padding: 8px 8px 8px 24px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background .3s, border-color .3s;
}

.cta-form:focus-within {
  background: rgba(255, 255, 255, .2);
  border-color: rgba(255, 255, 255, .5);
}

.cta-form input {
  flex: 1;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 15px;
  outline: none;
  min-width: 0;
}

.cta-form input::placeholder {
  color: rgba(255, 255, 255, .7);
}

.cta-form .btn {
  flex-shrink: 0;
}

.cta-hint {
  margin-top: 16px;
  font-size: 13px;
  opacity: .7;
  display: block;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  color: #94a3b8;
  padding: 68px 0 0;
  font-size: 15px;
}

.footer-brand {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .footer-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
}

.site-footer p {
  line-height: 1.7;
  max-width: 360px;
}

.site-footer h4 {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 18px;
}

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

.footer-links a {
  color: #94a3b8;
  transition: color .3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

.footer-info-item {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  align-items: flex-start;
}

.footer-info-item i {
  color: var(--accent);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 22px 0;
  margin-top: 56px;
  text-align: center;
  font-size: 14px;
  color: #7c8ba5;
}

.footer-bottom a {
  color: #a5b4cc;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root {
    --space-section: 72px;
  }

  .header-search {
    max-width: 360px;
  }

  .hero {
    padding: 100px 0 90px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .overview-card {
    padding: 28px 24px;
  }

  .category-card {
    min-height: 260px;
  }

  .stat-num {
    font-size: 40px;
  }

  .process-step::after {
    right: -16px;
    width: 30px;
  }
}

@media (max-width: 900px) {
  .site-header-inner {
    flex-wrap: wrap;
    row-gap: 10px;
  }

  .header-search {
    order: 3;
    flex-basis: 100%;
    max-width: 100%;
  }

  .search-form {
    width: 100%;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 300px;
    background: #fff;
    transform: translateX(100%);
    transition: transform .35s ease;
    box-shadow: -10px 0 40px rgba(15, 23, 42, .16);
    z-index: 998;
    padding: 90px 28px 30px;
    margin-left: 0;
  }

  .site-nav.open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .nav-link {
    display: block;
    padding: 14px 18px;
    font-size: 16px;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .hero-meta {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 60px;
  }

  .site-header-inner {
    min-height: 64px;
  }

  .brand-text {
    font-size: 20px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 17px;
  }

  .hero {
    padding: 70px 0 60px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero .hero-sub {
    font-size: 16px;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-meta {
    gap: 16px;
    font-size: 13px;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .category-card {
    min-height: 240px;
  }

  .category-body h3 {
    font-size: 22px;
  }

  .latest-item {
    padding: 20px 16px;
  }

  .item-index {
    font-size: 28px;
    min-width: 40px;
  }

  .stat-block {
    padding: 24px 16px;
  }

  .stat-num {
    font-size: 36px;
  }

  .process-step::after {
    display: none;
  }

  .faq-side {
    margin-bottom: 30px;
    padding-right: 0;
  }

  .cta-section {
    padding: 70px 0;
  }

  .cta-form {
    flex-direction: column;
    background: transparent;
    border: none;
    padding: 0;
    gap: 12px;
  }

  .cta-form input {
    background: rgba(255, 255, 255, .16);
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 999px;
    padding: 14px 22px;
  }

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

  .site-footer {
    padding-top: 48px;
  }

  .footer-bottom {
    margin-top: 36px;
  }
}

@media (max-width: 520px) {
  :root {
    --space-section: 50px;
  }

  body {
    font-size: 15px;
  }

  .grid-container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .hero {
    padding: 56px 0 48px;
  }

  .hero h1 {
    font-size: 26px;
    letter-spacing: -0.3px;
  }

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

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

  .hero-meta {
    flex-direction: column;
    gap: 10px;
    margin-top: 32px;
  }

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

  .overview-card {
    padding: 24px 20px;
  }

  .category-card {
    min-height: 210px;
    border-radius: 14px;
  }

  .category-body {
    padding: 22px;
  }

  .category-body h3 {
    font-size: 20px;
  }

  .hot-cover {
    height: 150px;
  }

  .hot-body {
    padding: 18px;
  }

  .latest-item {
    flex-direction: row;
    gap: 14px;
  }

  .item-index {
    font-size: 26px;
    min-width: 36px;
  }

  .item-body h3 {
    font-size: 16px;
  }

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

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

  .site-footer h4 {
    font-size: 16px;
  }
}

/* roulang page: article */
:root {
  --primary: #0e2a47;
  --primary-light: #1e4a6f;
  --accent: #f2b84b;
  --accent-dark: #d99a2b;
  --accent-soft: #fdf6e8;
  --bg: #f4f6f9;
  --bg-deep: #e9edf2;
  --card-bg: #ffffff;
  --text: #1c2b3a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(14, 42, 71, 0.06);
  --shadow-md: 0 8px 24px rgba(14, 42, 71, 0.08);
  --shadow-lg: 0 18px 44px rgba(14, 42, 71, 0.14);
  --section-space: 76px;
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-dark); }
img { max-width: 100%; height: auto; display: inline-block; }
ul, ol { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0 0 0.6em; line-height: 1.25; font-weight: 700; color: var(--text); }
p { margin: 0 0 1.2em; }
input, button, textarea { font-family: inherit; }
button { cursor: pointer; border: none; background: none; }
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #f7d794);
  z-index: 9999;
  transition: width 0.1s linear;
  border-radius: 0 3px 3px 0;
}
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 14px rgba(14, 42, 71, 0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
}
.site-brand { display: flex; align-items: center; flex-shrink: 0; }
.brand-logo { display: inline-flex; align-items: center; gap: 0.55rem; }
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(14, 42, 71, 0.25);
}
.brand-text {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
}
.header-search {
  flex: 1;
  max-width: 440px;
  margin: 0 1.2rem;
}
.search-form {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 4px 5px 4px 16px;
  transition: var(--transition);
}
.search-form:focus-within {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(242, 184, 75, 0.18);
}
.search-icon { color: var(--text-muted); font-size: 0.9rem; margin-right: 8px; }
.search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 8px 4px;
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
}
.search-input::placeholder { color: #9aa8bb; }
.search-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 8px 20px;
  border-radius: 50px;
  transition: var(--transition);
  white-space: nowrap;
}
.search-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(217, 154, 43, 0.35); }
.site-nav { flex-shrink: 0; }
.nav-list { display: flex; align-items: center; gap: 0.4rem; }
.nav-link {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}
.nav-link:hover { color: var(--primary); background: var(--bg); }
.nav-link.active { color: #fff; background: var(--primary); box-shadow: 0 4px 12px rgba(14, 42, 71, 0.22); }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 8px;
  border-radius: 10px;
  background: var(--bg);
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.article-hero {
  background: linear-gradient(135deg, rgba(14, 42, 71, 0.94), rgba(30, 74, 111, 0.86)),
              url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 72px 0 56px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.72);
}
.breadcrumb a { color: rgba(255, 255, 255, 0.88); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 0.7rem; opacity: 0.6; }
.breadcrumb .current {
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--accent);
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 1rem;
  backdrop-filter: blur(6px);
}
.hero-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: #fff;
  max-width: 820px;
  line-height: 1.35;
  margin-bottom: 0.7rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 780px;
  margin-bottom: 1.3rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.76);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 0.4rem; }
.hero-meta i { color: var(--accent); }
.article-main { padding: 64px 0 76px; }
.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.6rem;
  margin-bottom: 1.5rem;
}
.article-category-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 0.9rem;
}
.article-header-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.8rem;
  line-height: 1.4;
}
.article-sub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  font-size: 0.86rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.4rem;
  margin-bottom: 1.8rem;
}
.article-sub-meta span { display: inline-flex; align-items: center; gap: 0.4rem; }
.article-body { font-size: 1.06rem; line-height: 1.9; color: var(--text); }
.article-body p { margin: 0 0 1.5em; }
.article-body h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--primary);
  margin: 2.2rem 0 1.1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--accent);
}
.article-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 1.8rem 0 0.9rem;
}
.article-body img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  margin: 1.5rem auto;
  display: block;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 1.1rem 1.4rem;
  margin: 1.8rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--primary-light);
  font-size: 0.98rem;
}
.article-body ul,
.article-body ol { margin: 0 0 1.5em 1.7em; padding: 0; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 0.5rem; }
.article-body a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--accent-dark); }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.94rem;
}
.article-body th,
.article-body td { border: 1px solid var(--border); padding: 0.8rem 1rem; text-align: left; }
.article-body th { background: var(--primary); color: #fff; font-weight: 600; }
.article-body tr:nth-child(even) td { background: #f8fafc; }
.article-body code {
  background: var(--bg-deep);
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 0.9em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.article-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; padding-top: 1.4rem; border-top: 1px solid var(--border); }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg);
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 5px 13px;
  border-radius: 50px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.tag:hover { color: var(--primary); border-color: var(--accent); background: var(--accent-soft); }
.not-found-box {
  text-align: center;
  padding: 4rem 2rem;
}
.not-found-box i { font-size: 3.2rem; color: var(--accent); margin-bottom: 1.2rem; }
.not-found-box h2 { font-size: 1.6rem; color: var(--primary); margin-bottom: 0.5rem; }
.not-found-box p { color: var(--text-muted); margin-bottom: 1.6rem; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 11px 28px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(14, 42, 71, 0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14, 42, 71, 0.3); color: #fff; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1.5px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 10px 24px;
  border-radius: 50px;
  transition: var(--transition);
  background: #fff;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.side-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.4rem 1.5rem;
  margin-bottom: 1.4rem;
}
.side-card-header { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1.2rem; }
.side-card-header i { color: var(--accent); font-size: 1.1rem; }
.side-card-header h3 { font-size: 1.12rem; margin: 0; color: var(--primary); font-weight: 800; }
.side-card-header .header-line { flex: 1; height: 1px; background: var(--border); }
.cover-list { display: flex; flex-direction: column; gap: 0.9rem; }
.cover-item {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  padding: 0.5rem;
  border-radius: 12px;
  transition: var(--transition);
}
.cover-item:hover { background: var(--bg); }
.cover-img {
  width: 74px;
  height: 56px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.cover-info { min-width: 0; }
.cover-info h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cover-info span { font-size: 0.78rem; color: var(--text-muted); }
.hot-list { display: flex; flex-direction: column; }
.hot-list li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.62rem 0.2rem;
  border-bottom: 1px solid #f0f3f7;
  font-size: 0.92rem;
}
.hot-list li:last-child { border-bottom: none; }
.hot-list li a {
  flex: 1;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hot-list li a:hover { color: var(--primary); }
.hot-list i { color: #e05a5a; font-size: 0.8rem; }
.hot-rank {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--bg-deep);
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hot-rank.hot-1 { background: linear-gradient(135deg, #ff6b6b, #e05a5a); color: #fff; }
.hot-rank.hot-2 { background: linear-gradient(135deg, #ffa94d, #f0883e); color: #fff; }
.hot-rank.hot-3 { background: linear-gradient(135deg, #ffd43b, #f2b84b); color: #fff; }
.side-service li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid #f0f3f7;
  font-size: 0.92rem;
  color: var(--text);
}
.side-service li:last-child { border-bottom: none; }
.side-service i { color: var(--accent); margin-top: 0.3rem; font-size: 0.8rem; }
.faq-section {
  background: var(--bg-deep);
  padding: var(--section-space) 0;
}
.section-title {
  text-align: center;
  margin-bottom: 2.4rem;
}
.section-title h2 { font-size: 2rem; font-weight: 800; color: var(--primary); margin-bottom: 0.5rem; }
.section-title p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }
.section-title .title-line {
  display: inline-block;
  width: 52px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-dark));
  margin-bottom: 1rem;
}
.faq-grid { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 0.9rem;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-item details > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.1rem 1.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  position: relative;
}
.faq-item details > summary::-webkit-details-marker { display: none; }
.faq-item details > summary .faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item details[open] > summary .faq-icon {
  background: var(--primary);
  color: var(--accent);
  transform: rotate(45deg);
}
.faq-item details > summary .chevron {
  margin-left: auto;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 0.85rem;
}
.faq-item details[open] > summary .chevron { transform: rotate(180deg); }
.faq-item details > .faq-content { padding: 0 1.4rem 1.2rem 4.2rem; }
.faq-item details > .faq-content p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 64px 0;
  color: #fff;
  text-align: center;
}
.cta-inner { max-width: 680px; margin: 0 auto; }
.cta-inner h2 { color: #fff; font-size: 1.7rem; margin-bottom: 0.5rem; }
.cta-inner p { color: rgba(255, 255, 255, 0.8); margin-bottom: 1.6rem; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary);
  font-weight: 700;
  font-size: 0.98rem;
  padding: 13px 34px;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28); color: var(--primary); }
.site-footer {
  background: #0a1c30;
  color: #aab8c9;
  padding: 60px 0 0;
  font-size: 0.93rem;
}
.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 1rem;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.8rem;
}
.footer-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.site-footer p { color: #8fa4b8; max-width: 360px; }
.footer-links li { margin-bottom: 0.45rem; }
.footer-links a { color: #8fa4b8; font-size: 0.92rem; display: inline-flex; align-items: center; gap: 0.4rem; }
.footer-links a i { font-size: 0.7rem; color: var(--accent); }
.footer-links a:hover { color: #fff; }
.footer-info-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  margin-bottom: 0.8rem;
  color: #8fa4b8;
  line-height: 1.6;
}
.footer-info-item i { color: var(--accent); margin-top: 0.35rem; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 40px;
  padding: 1.4rem 0;
  text-align: center;
  color: #6d8298;
  font-size: 0.85rem;
}
@media (max-width: 900px) {
  .site-header-inner { flex-wrap: wrap; }
  .header-search { order: 3; flex-basis: 100%; max-width: 100%; margin: 0.4rem 0 0; }
  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #fff;
    box-shadow: -10px 0 40px rgba(14, 42, 71, 0.18);
    padding: 70px 1.5rem 2rem;
    transition: right 0.35s ease;
    z-index: 1001;
  }
  .site-nav.open { right: 0; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0.4rem; }
  .nav-link { display: block; padding: 0.8rem 1rem; border-radius: 10px; }
  .nav-toggle { display: inline-flex; }
  .article-hero { padding: 52px 0 42px; }
  .hero-title { font-size: 1.6rem; }
  .hero-desc { font-size: 0.95rem; }
  .article-card { padding: 1.8rem; }
  .article-header-title { font-size: 1.4rem; }
}
@media (max-width: 520px) {
  :root { --section-space: 54px; }
  .brand-text { font-size: 1.1rem; }
  .brand-mark { width: 34px; height: 34px; font-size: 15px; }
  .article-hero { padding: 40px 0 34px; }
  .hero-title { font-size: 1.4rem; }
  .hero-meta { gap: 0.7rem; }
  .article-card { padding: 1.35rem; border-radius: 16px; }
  .article-body { font-size: 0.98rem; }
  .article-body h2 { font-size: 1.28rem; }
  .section-title h2 { font-size: 1.55rem; }
  .faq-item details > summary { font-size: 0.92rem; padding: 1rem 1.1rem; }
  .faq-item details > .faq-content { padding: 0 1.1rem 1.1rem 3.6rem; }
  .cta-inner h2 { font-size: 1.4rem; }
  .search-btn { padding: 8px 14px; font-size: 0.84rem; }
  .footer-bottom { font-size: 0.78rem; }
}
@media (min-width: 1024px) {
  .article-card { padding: 2.8rem; }
}

/* roulang page: category1 */
:root {
  --primary: #0f2b46;
  --primary-light: #1e3a5f;
  --primary-soft: #eaf1f8;
  --accent: #f0a500;
  --accent-strong: #e09100;
  --accent-soft: #fff6e5;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --text: #16222e;
  --text-light: #5a6b7d;
  --text-weak: #8a9aab;
  --border: #e8ecf1;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 35px rgba(15, 43, 70, 0.08);
  --shadow-hover: 0 18px 48px rgba(15, 43, 70, 0.14);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a:hover {
  color: var(--accent-strong);
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

.grid-container {
  max-width: 1240px;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 90px 0;
}

.section-alt {
  background: #ffffff;
}

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

.section-head {
  text-align: center;
  margin-bottom: 50px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-desc {
  max-width: 720px;
  margin: 0 auto;
  color: var(--text-light);
  font-size: 16px;
}

/* ===== Header / Nav ===== */
.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  box-shadow: 0 2px 20px rgba(15, 43, 70, 0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 14px 0;
}

.site-brand {
  flex-shrink: 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  font-weight: 800;
  font-size: 22px;
}

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

.brand-mark {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 6px 16px rgba(15, 43, 70, 0.22);
}

.brand-text {
  letter-spacing: 0.5px;
}

.header-search {
  flex: 1;
  max-width: 440px;
}

.search-form {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 5px 6px 5px 16px;
  transition: var(--transition);
}

.search-form:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(240, 165, 0, 0.12);
  background: #fff;
}

.search-icon {
  color: var(--text-weak);
  margin-right: 10px;
  font-size: 14px;
}

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 7px 0;
  color: var(--text);
  font-size: 14px;
}

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

.search-btn {
  background: var(--accent);
  border: none;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
}

.search-btn:hover {
  background: var(--accent-strong);
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  transition: var(--transition);
}

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

.nav-link.active,
.nav-link.active:hover {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 6px 16px rgba(15, 43, 70, 0.25);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: 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);
}

/* ===== Banner ===== */
.page-banner {
  position: relative;
  background-image: linear-gradient(135deg, rgba(15, 43, 70, 0.9), rgba(30, 58, 95, 0.78)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 100px 0 90px;
  color: #fff;
  overflow: hidden;
}

.page-banner::after {
  content: "";
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 280px;
  height: 280px;
  background: rgba(240, 165, 0, 0.18);
  border-radius: 50%;
  filter: blur(60px);
}

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

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 13px;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
}

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

.page-banner h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
}

.page-banner h1 span {
  color: var(--accent);
}

.banner-desc {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 30px;
}

.banner-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.banner-breadcrumb a {
  color: rgba(255, 255, 255, 0.82);
}

.banner-breadcrumb a:hover {
  color: var(--accent);
}

.banner-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 46px;
}

.banner-metric {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  padding: 12px 20px;
  backdrop-filter: blur(6px);
}

.banner-metric i {
  color: var(--accent);
  font-size: 16px;
}

.banner-metric strong {
  display: block;
  font-size: 18px;
  line-height: 1.2;
}

.banner-metric span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
}

/* ===== Guide Intro ===== */
.guide-intro {
  padding: 90px 0 80px;
}

.intro-grid {
  align-items: center;
}

.intro-media {
  position: relative;
}

.intro-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
}

.intro-media .intro-exp {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 14px;
  padding: 14px 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(8px);
}

.intro-exp .exp-icon {
  width: 42px;
  height: 42px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.intro-exp strong {
  display: block;
  color: var(--primary);
  font-size: 15px;
  line-height: 1.3;
}

.intro-exp span {
  font-size: 12px;
  color: var(--text-light);
}

.intro-content .section-tag {
  margin-bottom: 12px;
}

.intro-content h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--primary);
  margin-bottom: 16px;
}

.intro-content p {
  color: var(--text-light);
  margin-bottom: 14px;
}

.intro-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 24px 0 28px;
}

.intro-feature {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: #f9fbfd;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  transition: var(--transition);
}

.intro-feature:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
  transform: translateY(-2px);
}

.intro-feature i {
  color: var(--accent-strong);
  font-size: 16px;
  margin-top: 4px;
}

.intro-feature strong {
  display: block;
  color: var(--primary);
  font-size: 15px;
}

.intro-feature span {
  font-size: 13px;
  color: var(--text-light);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(15, 43, 70, 0.25);
}

.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(15, 43, 70, 0.32);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(240, 165, 0, 0.25);
}

.btn-accent:hover {
  background: var(--accent-strong);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(240, 165, 0, 0.35);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

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

.btn-light:hover {
  background: var(--accent-soft);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ===== Info Categories ===== */
.category-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 26px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  opacity: 0;
  transition: var(--transition);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(240, 165, 0, 0.4);
}

.category-card:hover::before {
  opacity: 1;
}

.category-icon {
  width: 54px;
  height: 54px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
  transition: var(--transition);
}

.category-card:hover .category-icon {
  background: var(--accent);
  color: #fff;
  transform: rotate(-6deg) scale(1.05);
}

.category-card h3 {
  color: var(--primary);
  font-size: 18px;
  margin-bottom: 8px;
}

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

.category-card .cat-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-strong);
}

.category-card .cat-link i {
  transition: var(--transition);
}

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

/* ===== Hot News ===== */
.news-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

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

.news-card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.news-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-card:hover .news-card-media img {
  transform: scale(1.06);
}

.news-card-media::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.45));
}

.news-rank {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 43, 70, 0.88);
  color: #fff;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  z-index: 2;
  backdrop-filter: blur(4px);
}

.news-rank.rank-top {
  background: var(--accent);
  color: #fff;
}

.hot-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(4px);
  color: #d64b2a;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 50px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hot-badge i {
  color: #ff6b35;
}

.news-card-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
}

.tag-primary {
  background: var(--primary-soft);
  color: var(--primary);
}

.tag-accent {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.tag-featured {
  background: #ff6b35;
  color: #fff;
}

.news-card-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
}

.news-card-body h3 a {
  color: var(--text);
}

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

.news-card-body > p {
  color: var(--text-light);
  font-size: 13px;
  line-height: 1.65;
  flex: 1;
  margin-bottom: 14px;
}

.rank-bar {
  height: 5px;
  background: #eef1f5;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 14px;
}

.rank-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #ff7b4a);
  border-radius: 4px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: var(--text-weak);
  border-top: 1px solid #f0f3f6;
  padding-top: 12px;
}

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

.news-link {
  position: absolute;
  bottom: 20px;
  right: 22px;
  width: 30px;
  height: 30px;
  background: #f0f3f6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 12px;
  transition: var(--transition);
}

.news-card:hover .news-link {
  background: var(--primary);
  color: #fff;
  transform: scale(1.1);
}

/* ===== Update Schedule ===== */
.schedule-list {
  max-width: 780px;
  margin: 0 auto;
  position: relative;
  padding-left: 30px;
}

.schedule-list::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(var(--accent), var(--primary));
  border-radius: 2px;
}

.schedule-item {
  position: relative;
  padding: 22px 26px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.schedule-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(6px);
}

.schedule-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 50%;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--accent);
  transform: translateY(-50%);
}

.schedule-time {
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 50px;
  white-space: nowrap;
}

.schedule-info {
  flex: 1;
  min-width: 200px;
}

.schedule-info strong {
  display: block;
  color: var(--primary);
  font-size: 16px;
  margin-bottom: 3px;
}

.schedule-info span {
  color: var(--text-light);
  font-size: 13px;
}

.schedule-type {
  font-size: 12px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent-strong);
  padding: 4px 12px;
  border-radius: 50px;
}

/* ===== Stats ===== */
.stats-section {
  position: relative;
  background-image: linear-gradient(135deg, rgba(15, 43, 70, 0.94), rgba(30, 58, 95, 0.86)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 90px 0;
}

.stats-section .section-title {
  color: #fff;
}

.stats-section .section-desc {
  color: rgba(255, 255, 255, 0.78);
}

.stats-grid {
  margin-top: 20px;
}

.stat-box {
  text-align: center;
  padding: 30px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.stat-box:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-4px);
}

.stat-box i {
  font-size: 26px;
  color: var(--accent);
  margin-bottom: 12px;
}

.stat-box .stat-number {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
}

.stat-box .stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
  margin-top: 6px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(240, 165, 0, 0.35);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
}

.faq-question {
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}

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

.faq-question i {
  color: var(--accent-strong);
  transition: transform 0.3s ease;
  font-size: 14px;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

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

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background-image: linear-gradient(135deg, rgba(15, 43, 70, 0.96), rgba(30, 58, 95, 0.88)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 80px 0;
  text-align: center;
}

.cta-box {
  max-width: 680px;
  margin: 0 auto;
}

.cta-box .section-tag {
  background: rgba(240, 165, 0, 0.18);
  color: var(--accent);
}

.cta-box h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 14px;
  color: #fff;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  margin-bottom: 30px;
}

.cta-form {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50px;
  padding: 6px 6px 6px 20px;
  max-width: 520px;
  margin: 0 auto;
  backdrop-filter: blur(8px);
}

.cta-form input {
  flex: 1;
  background: transparent;
  border: none;
  color: #fff;
  padding: 10px 0;
  font-size: 14px;
}

.cta-form input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.cta-form button {
  background: var(--accent);
  border: none;
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  padding: 12px 26px;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.cta-form button:hover {
  background: var(--accent-strong);
  transform: scale(1.03);
}

.cta-note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 14px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 24px;
}

/* ===== Footer ===== */
.site-footer {
  background: #0c1f34;
  color: rgba(255, 255, 255, 0.72);
  padding: 70px 0 30px;
  font-size: 14px;
}

.site-footer .grid-container {
  max-width: 1240px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 16px;
}

.footer-mark {
  width: 38px;
  height: 38px;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.site-footer p {
  line-height: 1.8;
  max-width: 380px;
  color: rgba(255, 255, 255, 0.56);
}

.site-footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 700;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.64);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

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

.footer-links i {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.35);
}

.footer-info-item {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.7;
}

.footer-info-item i {
  color: var(--accent);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 50px;
  padding-top: 24px;
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .site-header-inner {
    flex-wrap: wrap;
    gap: 16px;
  }

  .header-search {
    order: 3;
    max-width: 100%;
    width: 100%;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: -320px;
    width: 290px;
    height: 100vh;
    background: #fff;
    box-shadow: -6px 0 30px rgba(0, 0, 0, 0.12);
    transition: right 0.35s ease;
    padding: 80px 24px 30px;
    z-index: 200;
  }

  .site-nav.nav-open {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .nav-link {
    display: block;
    padding: 13px 18px;
    font-size: 15px;
    text-align: left;
    border-radius: 12px;
  }

  .nav-toggle {
    display: flex;
    order: 2;
    margin-left: 0;
  }

  .page-banner {
    padding: 80px 0 70px;
  }

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

  .section {
    padding: 70px 0;
  }

  .schedule-item {
    padding: 18px 20px;
  }
}

@media (max-width: 768px) {
  .grid-container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .page-banner {
    padding: 62px 0 56px;
  }

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

  .banner-desc {
    font-size: 15px;
  }

  .banner-metrics {
    flex-direction: column;
    gap: 12px;
  }

  .banner-metric {
    width: 100%;
  }

  .section-title {
    font-size: 27px;
  }

  .intro-content h2 {
    font-size: 26px;
  }

  .intro-media {
    margin-bottom: 30px;
  }

  .news-card-body {
    padding: 18px;
  }

  .schedule-list {
    padding-left: 24px;
  }

  .schedule-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .schedule-item::before {
    left: -23px;
  }

  .schedule-list::before {
    left: 8px;
  }

  .stat-box .stat-number {
    font-size: 30px;
  }

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

  .cta-form {
    flex-direction: column;
    border-radius: 24px;
    padding: 18px;
  }

  .cta-form input {
    width: 100%;
    text-align: center;
  }

  .cta-form button {
    width: 100%;
  }

  .footer-brand {
    font-size: 19px;
  }
}

@media (max-width: 520px) {
  .brand-text {
    font-size: 18px;
  }

  .brand-mark {
    width: 35px;
    height: 35px;
    border-radius: 10px;
    font-size: 14px;
  }

  .search-btn {
    padding: 8px 14px;
    font-size: 12px;
  }

  .page-banner h1 {
    font-size: 26px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 23px;
  }

  .btn-group {
    flex-direction: column;
    width: 100%;
  }

  .btn-group .btn {
    width: 100%;
  }

  .category-card {
    padding: 24px 20px;
  }

  .news-card-body h3 {
    font-size: 15px;
  }

  .stats-section {
    padding: 60px 0;
  }

  .schedule-time {
    font-size: 12px;
    padding: 5px 10px;
  }

  .schedule-info strong {
    font-size: 14px;
  }

  .schedule-info span {
    font-size: 12px;
  }

  .faq-question {
    font-size: 14px;
    padding: 16px 18px;
  }

  .faq-answer-inner {
    padding: 0 18px 16px;
  }
}