/* roulang page: index */
:root {
  --primary: #1668A2;
  --primary-deep: #0B405F;
  --primary-light: #E8F1F8;
  --accent: #D4761A;
  --accent-deep: #B45309;
  --page-bg: #FFFFFF;
  --bg-alt: #F6F9FC;
  --bg-tint: #E8F1F8;
  --footer-bg: #FAFBFC;
  --line: #E5EAF0;
  --text-title: #0E1E2E;
  --text-body: #253645;
  --text-sub: #5C6F82;
  --text-muted: #A7B4C2;
  --radius-sm: 6px;
  --radius-card: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 2px 12px rgba(15, 40, 70, 0.06);
  --shadow-hover: 0 8px 30px rgba(15, 40, 70, 0.10);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--page-bg);
  color: var(--text-body);
  line-height: 1.8;
  font-size: 15px;
}

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

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

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

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

ul,
ol {
  list-style: none;
}

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

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

.section {
  padding: 84px 0;
}

.section-bg-alt {
  background: var(--bg-alt);
}

.section-bg-white {
  background: #FFFFFF;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.4px;
}

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

.section-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.35;
  letter-spacing: 0.2px;
}

.section-desc {
  margin-top: 12px;
  color: var(--text-sub);
  max-width: 640px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background: var(--primary-deep);
  color: #fff;
  box-shadow: 0 6px 18px rgba(22, 104, 162, 0.22);
}

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

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

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

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

.btn-white {
  background: #ffffff;
  color: var(--primary);
}

.btn-white:hover {
  background: #eef4fa;
  color: var(--primary-deep);
}

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 5px;
  background: var(--primary-light);
  color: var(--primary);
}

.badge-orange {
  background: #FCEFDD;
  color: var(--accent-deep);
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.985);
  box-shadow: 0 2px 14px rgba(15, 40, 70, 0.06);
}

.row-top {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.row-sub {
  min-height: 44px;
  border-top: 1px solid #edf1f5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-mark {
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 7px;
  letter-spacing: 1px;
  line-height: 1;
}

.brand-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.brand-text small {
  font-weight: 500;
  color: var(--text-sub);
  font-size: 13px;
  margin-left: 4px;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 220px;
  height: 38px;
  background: #F2F5F8;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 12px;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.search-box:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 104, 162, 0.12);
}

.search-box i {
  color: var(--text-muted);
  font-size: 14px;
}

.search-box input {
  width: 100%;
  background: transparent;
  font-size: 13px;
  color: var(--text-body);
}

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

.login-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-body);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 7px 14px;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

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

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

.main-nav a {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  padding: 6px 14px;
  border-radius: 6px;
  line-height: 1.4;
}

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

.main-nav a.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.nav-trend {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  white-space: nowrap;
}

.nav-trend .hot {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent-deep);
  font-weight: 600;
}

.nav-trend a {
  color: var(--text-sub);
  font-weight: 500;
  border-bottom: 1px dashed transparent;
}

.nav-trend a:hover {
  color: var(--accent-deep);
  border-color: var(--accent);
}

.nav-trend .split {
  color: var(--text-muted);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: var(--text-body);
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
}

.nav-toggle i {
  font-size: 18px;
}

/* mobile drawer */
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(14, 30, 46, 0.35);
  z-index: 199;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  max-width: 86%;
  height: 100vh;
  background: #fff;
  z-index: 200;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  padding: 20px;
  overflow-y: auto;
  box-shadow: -8px 0 32px rgba(15, 40, 70, 0.12);
}

.drawer.open {
  transform: translateX(0);
}

.mask-show {
  opacity: 1;
  visibility: visible;
}

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  margin-bottom: 16px;
}

.drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-body);
  background: #fff;
}

.drawer .mobile-search {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  height: 42px;
  padding: 0 12px;
  margin-bottom: 20px;
  color: var(--text-muted);
}

.drawer .mobile-search input {
  width: 100%;
  font-size: 14px;
  color: var(--text-body);
}

.drawer-group-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  margin: 18px 0 8px;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.drawer-nav a {
  display: block;
  color: var(--text-body);
  font-weight: 500;
  font-size: 15px;
  padding: 10px 6px;
  border-radius: 6px;
}

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

.drawer-btn {
  margin-top: 16px;
  justify-content: center;
  width: 100%;
}

/* hero */
.hero {
  background: linear-gradient(135deg, var(--bg-alt) 0%, #ffffff 65%);
  overflow: hidden;
  padding: 48px 0 84px;
}

.hero-wrap {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 64px;
  align-items: center;
}

.hero-crumb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-sub);
  font-weight: 500;
  margin-bottom: 18px;
}

.hero-crumb span {
  color: var(--accent-deep);
  font-weight: 600;
}

.hero h1 {
  font-size: 40px;
  line-height: 1.28;
  color: var(--text-title);
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.4px;
}

.hero h1 em {
  font-style: normal;
  color: var(--primary);
  border-bottom: 4px solid rgba(212, 118, 26, 0.8);
  padding-bottom: 2px;
}

.hero-sub {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-sub);
  margin-bottom: 30px;
  max-width: 560px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-body);
  font-size: 13px;
  font-weight: 500;
}

.hero-trust-item i {
  color: var(--primary);
  font-size: 15px;
}

.hero-visual {
  position: relative;
}

.hero-img {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 1px solid #EFF3F7;
  aspect-ratio: 16 / 10;
  background-color: var(--bg-tint);
}

.hero-img img {
  width: 100%;
  height: 100%;
}

.hero-status {
  position: absolute;
  right: 15px;
  bottom: 15px;
  background: rgba(255, 255, 255, 0.97);
  border-radius: 10px;
  padding: 12px 15px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 6px 20px rgba(15, 40, 70, 0.14);
  border: 1px solid #EDF0F4;
  max-width: calc(100% - 30px);
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #48A47B;
  position: relative;
  flex-shrink: 0;
}

.status-dot::after {
  content: "";
  position: absolute;
  width: 17px;
  height: 17px;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(72, 164, 123, 0.45);
}

.status-text strong {
  display: block;
  color: var(--text-title);
  font-size: 13px;
  line-height: 1.3;
}

.status-text span {
  font-size: 12px;
  color: var(--text-sub);
}

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

.feature-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 22px 22px 20px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card::before {
  content: "";
  display: block;
  width: 100%;
  height: 6px;
  background: var(--primary);
  border-radius: 6px 6px 0 0;
  margin: -22px -22px 22px;
  width: calc(100% + 44px);
}

.feature-card.orange::before {
  background: var(--accent);
}

.feature-card.deep::before {
  background: var(--primary-deep);
}

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

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

.feature-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-sub);
  margin-bottom: 14px;
}

.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}

.feature-link i {
  font-size: 12px;
  transition: transform 0.2s ease;
}

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

/* flow guide */
.zigzag {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.zigzag.flipped .flow-media {
  order: 1;
}

.flow-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 1px solid #EEF1F5;
  aspect-ratio: 16/10;
  background-color: var(--bg-tint);
}

.flow-media img {
  width: 100%;
  height: 100%;
}

.flow-media-caption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text-body);
  border: 1px solid #EDF0F4;
  font-size: 12px;
  font-weight: 600;
  padding: 7px 12px;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(15, 40, 70, 0.08);
}

.flow-content h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 12px;
}

.flow-desc {
  color: var(--text-sub);
  margin-bottom: 28px;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.step-item:hover {
  border-color: #d0dee9;
  box-shadow: var(--shadow-card);
}

.step-num {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
}

.step-item h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 4px;
}

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

/* news */
.news-list-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.news-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  box-shadow: 0 1px 4px rgba(15, 40, 70, 0.03);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}

.news-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.news-meta-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.news-title {
  margin-bottom: 8px;
}

.news-title a {
  color: var(--text-title);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.news-title a:hover {
  color: var(--primary);
}

.news-summary {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 18px;
  line-height: 1.7;
}

.news-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  color: var(--text-muted);
  font-size: 12px;
}

.news-foot .foot-divider {
  display: flex;
  align-items: center;
  gap: 12px;
}

.news-read {
  color: var(--primary);
  font-weight: 600;
  font-size: 13px;
}

.news-empty {
  background: var(--bg-alt);
  border: 1px dashed #d2dde7;
  border-radius: 14px;
  padding: 70px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

/* feature info */
.info-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.info-left h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-title);
  margin: 12px 0 16px;
  line-height: 1.4;
}

.info-left p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.9;
  margin-bottom: 14px;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.info-tile {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 24px 20px;
  min-height: 142px;
  box-shadow: var(--shadow-card);
}

.info-tile i {
  width: 38px;
  height: 38px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  margin-bottom: 12px;
}

.info-tile.orange i {
  background: #FCEFDD;
  color: var(--accent);
}

.info-tile h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 6px;
}

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

/* faq */
.faq-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.accordion-item:last-child {
  border-bottom: 0;
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 56px;
  padding: 14px 22px;
  font-size: 15px;
  color: var(--text-title);
  background: #fff;
  cursor: pointer;
  text-align: left;
  font-weight: 600;
  line-height: 1.5;
}

.accordion-trigger:hover {
  background: #FAFCFE;
}

.accordion-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--text-sub);
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.accordion-item.open .accordion-trigger {
  color: var(--primary);
  background: #F9FCFF;
}

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

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.accordion-item.open .accordion-panel {
  max-height: 600px;
}

.accordion-inner {
  background: var(--bg-alt);
  padding: 14px 22px 18px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.9;
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  margin: 0 22px 18px;
}

/* CTA */
.cta-banner {
  border-radius: 18px;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(11, 64, 95, 0.95), rgba(22, 104, 162, 0.9)),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  padding: 56px 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: 0 16px 46px rgba(11, 64, 95, 0.18);
}

.cta-left h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}

.cta-left p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

.cta-right {
  flex-shrink: 0;
}

/* footer */
.site-footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--line);
  margin-top: 0;
}

.footer-top {
  padding: 52px 0 40px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-brand .brand-mark {
  background: var(--primary);
  color: #fff;
}

.footer-brand-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-title);
}

.footer-about {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.8;
  max-width: 340px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 18px;
}

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

.footer-links a {
  color: var(--text-sub);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a i {
  font-size: 11px;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 3px;
}

.footer-contact li {
  color: var(--text-sub);
  font-size: 13px;
  margin-bottom: 12px;
  display: flex;
  gap: 8px;
  line-height: 1.7;
}

.footer-contact i {
  color: var(--primary);
  margin-top: 4px;
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 12px;
}

.back-top {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--primary);
  color: var(--primary);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.back-top:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}

.mobile-action-bar {
  display: none;
}

/* moveable */
@media (max-width: 1024px) {
  .hero-wrap {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero h1 {
    font-size: 34px;
  }

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

  .zigzag {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .zigzag.flipped .flow-media {
    order: 0;
  }

  .info-block {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-top {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 58px 0;
  }

  .section-title,
  .info-left h2,
  .cta-left h2 {
    font-size: 24px;
  }

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

  .row-sub {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .search-box {
    display: none;
  }

  .row-top {
    min-height: 58px;
  }

  .brand-text {
    font-size: 15px;
  }

  .brand-text small {
    display: none;
  }

  .login-link span {
    display: none;
  }

  .login-link {
    width: 38px;
    height: 38px;
    padding: 0;
    justify-content: center;
    border: none;
  }

  .login-link i {
    font-size: 18px;
  }

  .hero {
    padding: 36px 0 52px;
  }

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

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

  .hero-btns {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-btns .btn {
    justify-content: center;
    width: 100%;
  }

  .hero-trust {
    gap: 12px 18px;
  }

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

  .news-list-grid {
    grid-template-columns: 1fr;
  }

  .info-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .info-tile {
    padding: 18px 14px;
    min-height: 0;
  }

  .info-tile p {
    font-size: 12px;
  }

  .cta-banner {
    flex-direction: column;
    align-items: stretch;
    gap: 28px;
    padding: 38px 24px;
  }

  .cta-right .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-about {
    max-width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 18px 16px;
  }

  body {
    padding-bottom: 68px;
  }

  .mobile-action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    min-height: 56px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--line);
    box-shadow: 0 -4px 16px rgba(15, 40, 70, 0.08);
    z-index: 90;
    padding: 8px 16px;
  }

  .mobile-action-text {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-body);
    font-size: 13px;
    font-weight: 500;
  }

  .mobile-action-text .mini-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #48A47B;
    position: relative;
    display: block;
  }

  .mobile-action-bar .btn {
    min-height: 40px;
    padding: 0 18px;
    font-size: 13px;
    flex-shrink: 0;
  }
}

@media (max-width: 480px) {
  .brand-mark {
    font-size: 13px;
    padding: 5px 8px;
  }

  .brand-text {
    font-size: 14px;
  }

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

  .flow-content h2 {
    font-size: 23px;
  }

  .accordion-trigger {
    font-size: 14px;
    padding: 13px 12px;
  }

  .accordion-inner {
    margin: 0 12px 14px;
    padding: 12px 14px 14px;
    font-size: 13px;
  }

  .news-title a {
    font-size: 16px;
  }

  .news-item {
    padding: 17px 16px;
  }
}

/* roulang page: article */
:root {
            --primary: #1668A2;
            --primary-deep: #125689;
            --primary-soft: #E8F1F8;
            --accent: #D4761A;
            --accent-deep: #B45309;
            --ink: #0E1E2E;
            --text: #253645;
            --muted: #5C6F82;
            --faint: #A7B4C2;
            --line: #E5EAF0;
            --surface: #F6F9FC;
            --white: #ffffff;
            --radius: 12px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 12px rgba(15, 40, 70, .06);
            --shadow-md: 0 8px 30px rgba(15, 40, 70, .10);
            --shadow-lg: 0 16px 44px rgba(15, 40, 70, .12);
        }

        html {
            scroll-behavior: smooth;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: #fff;
            color: var(--text);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

        ::selection {
            background: var(--primary);
            color: #fff;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .96);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 2px 16px rgba(15, 40, 70, .03);
            backdrop-filter: blur(6px);
        }

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

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

        .brand-mark {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            padding: 6px 12px;
            border-radius: 6px;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .brand-text {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            white-space: nowrap;
            letter-spacing: .5px;
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 230px;
            height: 38px;
            border-radius: 19px;
            background: #f1f4f7;
            border: 1px solid transparent;
            padding: 0 14px;
            transition: border-color .2s, background .2s, box-shadow .2s;
        }

        .search-box:focus-within {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(22, 104, 162, .12);
        }

        .search-box i {
            color: var(--faint);
            font-size: 14px;
        }

        .search-box input {
            border: 0;
            background: transparent;
            width: 100%;
            outline: none;
            font-size: 13px;
            color: var(--text);
        }

        .login-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 12px;
            border-radius: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            transition: background .2s;
        }

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

        .nav-toggle {
            display: none;
            border: 0;
            background: rgba(22, 104, 162, .08);
            width: 38px;
            height: 38px;
            border-radius: 8px;
            color: var(--primary);
            font-size: 17px;
            cursor: pointer;
        }

        .row-sub {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 44px;
            border-top: 1px solid #f0f3f7;
            padding: 4px 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-block;
            line-height: 36px;
            padding: 0 14px;
            border-radius: 6px;
            color: var(--text);
            font-size: 15px;
            font-weight: 500;
            transition: background .18s, color .18s;
        }

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

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

        .nav-trend {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            font-size: 13px;
            color: var(--muted);
        }

        .nav-trend .hot {
            color: var(--accent-deep);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: #fdf3e7;
            padding: 2px 8px;
            border-radius: 20px;
        }

        .nav-trend .split {
            color: var(--line);
            font-weight: 300;
        }

        .nav-trend a {
            color: var(--accent);
            font-weight: 500;
            line-height: 34px;
        }

        .nav-trend a:hover {
            color: var(--accent-deep);
        }

        .nav-toggle.show,
        .nav-toggle.no-js {
            transition: transform .2s;
        }

        /* Article */
        .article-page {
            background: #fff;
        }

        .article-main {
            padding-top: 26px;
            padding-bottom: 56px;
            background: #fff;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 18px;
            flex-wrap: wrap;
            background: var(--surface);
            border: 1px solid #eef2f6;
            border-radius: 10px;
            padding: 11px 16px;
        }

        .breadcrumb a {
            color: var(--muted);
            transition: color .18s;
        }

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

        .breadcrumb .sep {
            color: #bcc8d4;
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--ink);
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 420px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 36px;
            margin-bottom: 28px;
        }

        .article-page-head {
            border-bottom: 1px solid var(--line);
            padding-bottom: 20px;
            margin-bottom: 18px;
        }

        .article-page-head h1 {
            font-size: 32px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 14px 0;
            letter-spacing: .5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--muted);
        }

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

        .article-meta .meta-item i {
            color: var(--faint);
            font-size: 14px;
        }

        .article-meta .meta-cat {
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            line-height: 24px;
            padding: 0 10px;
            border-radius: 30px;
        }

        .source-line {
            border-top: 1px solid var(--line);
            margin-top: 24px;
            padding-top: 14px;
        }

        .post-tip {
            background: #f2f5f8;
            color: var(--muted);
            font-size: 13px;
            padding: 11px 14px;
            border-radius: 10px;
            border-left: 3px solid var(--primary);
        }

        .article-body-card {
            background: #fff;
            border: 1px solid #edf1f5;
            border-radius: 16px;
            box-shadow: 0 2px 12px rgba(15, 40, 70, .04);
            padding: 30px;
        }

        .article-content {
            max-width: 760px;
            margin: 0 auto;
            font-size: 15.5px;
            line-height: 1.95;
        }

        .article-content p {
            margin: 0 0 18px;
        }

        .article-content h2 {
            font-size: 24px;
            color: var(--ink);
            font-weight: 700;
            margin: 34px 0 14px;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 19px;
            color: var(--ink);
            font-weight: 600;
            margin: 24px 0 10px;
        }

        .article-content ul {
            padding-left: 22px;
            margin-bottom: 20px;
        }

        .article-content ul li {
            margin-bottom: 8px;
        }

        .article-content img {
            border-radius: 12px;
            margin: 10px 0 20px;
            box-shadow: 0 5px 18px rgba(15, 40, 70, .08);
        }

        .article-content a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid rgba(22, 104, 162, .3);
        }

        .article-content blockquote {
            margin: 20px 0;
            background: #f7f9fb;
            border-left: 3px solid var(--primary);
            padding: 12px 18px;
            color: var(--text);
            border-radius: 0 8px 8px 0;
        }

        .article-content .content-table-wrap {
            overflow-x: auto;
            background: var(--surface);
            border-radius: 10px;
            padding: 4px;
            border: 1px solid var(--line);
            margin: 14px 0 22px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .article-content th,
        .article-content td {
            border-bottom: 1px solid var(--line);
            padding: 10px 12px;
            text-align: left;
            vertical-align: top;
            word-break: break-word;
        }

        .article-content th {
            color: var(--ink);
            background: #eef3f7;
            font-weight: 600;
        }

        .post-footer-tip {
            background: var(--surface);
            border-left: 3px solid var(--primary);
            font-size: 13px;
            color: var(--muted);
            padding: 10px 14px;
            border-radius: 0 8px 8px 0;
            margin-top: 14px;
        }

        .post-nav-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 26px;
        }

        .post-nav-item {
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 14px 16px;
            min-height: 72px;
            transition: border-color .2s, box-shadow .2s;
        }

        .post-nav-item a {
            display: block;
        }

        .post-nav-label {
            font-size: 13px;
            color: var(--faint);
            margin-bottom: 4px;
        }

        .post-nav-title {
            font-size: 15px;
            color: var(--text);
            font-weight: 600;
            line-height: 1.6;
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 100%;
        }

        .post-nav-item:hover {
            border-color: var(--primary);
            box-shadow: 0 6px 20px rgba(22, 104, 162, .10);
        }

        .post-nav-item.disabled .post-nav-title {
            color: var(--faint);
        }

        .post-nav-item.disabled:hover {
            border-color: var(--line);
            box-shadow: none;
            background: #fafbfc;
        }

        .multi-card-title {
            margin-top: 28px;
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            border-left: 4px solid var(--accent);
            padding-left: 12px;
        }

        .channel-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 16px;
        }

        .channel-card {
            border-radius: 14px;
            border: 1px solid var(--line);
            background: #fff;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(15, 40, 70, .05);
            transition: transform .25s, box-shadow .25s, border-color .25s;
            display: block;
        }

        .channel-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(15, 40, 70, .10);
            border-color: #d4dde6;
        }

        .channel-card .cover-box {
            aspect-ratio: 16/9;
            background: #edf2f7;
            overflow: hidden;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

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

        .channel-card .cover-box .cover-icon {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 30px;
            letter-spacing: .5px;
        }

        .channel-card .card-body {
            padding: 16px 18px 18px;
        }

        .channel-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .channel-card .card-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .channel-card .link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }

        .channel-card .link i {
            font-size: 12px;
            transition: transform .2s;
        }

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

        .notfound-box {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 46px 24px;
            text-align: center;
            max-width: 760px;
            margin: 40px auto 0;
        }

        .notfound-box i {
            color: var(--faint);
            font-size: 36px;
            margin-bottom: 16px;
        }

        .notfound-box h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            margin: 0;
            line-height: 1.5;
        }

        .notfound-box p {
            font-size: 15px;
            color: var(--muted);
            margin: 8px 0 20px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            border: 0;
            border-radius: 8px;
            height: 44px;
            padding: 0 24px;
            font-size: 15px;
            transition: all .18s;
            cursor: pointer;
            line-height: 1;
        }

        .btn-primary:hover {
            background: var(--primary-deep);
            box-shadow: 0 6px 18px rgba(22, 104, 162, .2);
            transform: translateY(-1px);
        }

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

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            border: 1px solid var(--primary);
            border-radius: 8px;
            height: 44px;
            padding: 0 20px;
            font-size: 14px;
            transition: all .18s;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: var(--primary-soft);
        }

        /* Footer */
        .site-footer {
            border-top: 1px solid var(--line);
            background: #fafbfc;
            margin-top: 20px;
            padding: 34px 0 16px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.6fr;
            gap: 28px;
            padding-bottom: 24px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }

        .footer-brand-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            white-space: nowrap;
        }

        .footer-about {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.85;
            margin: 0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 14px 0;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--muted);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
        }

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

        .footer-links a i {
            color: #b6c2cf;
            font-size: 10px;
            line-height: 1;
        }

        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .footer-contact i {
            color: var(--primary);
            margin-top: 3px;
        }

        .footer-bottom {
            border-top: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 15px;
            padding-top: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            margin: 0;
            color: var(--faint);
            font-size: 13px;
        }

        .back-top {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid #cfd7e0;
            color: var(--primary);
            cursor: pointer;
            transition: all .2s;
        }

        .back-top:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        /* mobile drawer */
        .mobile-drawer {
            display: none;
        }

        body.drawer-open {
            overflow: hidden;
        }

        body.drawer-open .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 60;
            display: flex;
            flex-direction: column;
            background: rgba(16, 32, 48, .4);
            visibility: visible;
        }

        .drawer-panel {
            background: #fff;
            width: min(340px, 88vw);
            box-shadow: -8px 0 40px rgba(15, 40, 70, .2);
            height: 100%;
            margin-left: auto;
            overflow-y: auto;
            padding: 22px 20px;
        }

        .drawer-panel a {
            display: block;
            padding: 12px 4px;
            border-bottom: 1px solid #f0f3f7;
            color: var(--ink);
            font-weight: 500;
            font-size: 16px;
        }

        .drawer-panel a.active,
        .drawer-panel a:hover {
            color: var(--primary);
        }

        .drawer-close {
            border: 0;
            background: var(--surface);
            width: 36px;
            height: 36px;
            border-radius: 8px;
            font-size: 18px;
            color: var(--ink);
            cursor: pointer;
            margin-left: auto;
            margin-bottom: 8px;
            display: block;
        }

        .mobile-cta-bar {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 40;
            border-top: 1px solid var(--line);
            background: rgba(255, 255, 255, .98);
            box-shadow: 0 -4px 18px rgba(15, 40, 70, .06);
            padding: 8px 14px;
            display: none;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            backdrop-filter: blur(8px);
            height: auto;
            min-height: 54px;
        }

        .mobile-cta-bar .bar-note {
            color: var(--muted);
            font-size: 13px;
        }

        .mobile-cta-bar .bar-note b {
            color: var(--accent);
        }

        .mobile-cta-bar .btn-bar {
            display: inline-flex;
            flex-shrink: 0;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            border-radius: 6px;
            line-height: 34px;
            height: 34px;
            padding: 0 13px;
            font-size: 13px;
            font-weight: 600;
        }

        .mobile-cta-bar .btn-bar:hover {
            background: var(--primary-deep);
        }

        .mobile-search-layer {
            display: none;
        }

        body.search-open .mobile-search-layer {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 12px;
            background: #fff;
            border-bottom: 1px solid var(--line);
        }

        .mobile-search-layer input {
            flex: 1;
            height: 38px;
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            outline: none;
            font-size: 14px;
            color: var(--text);
        }

        .mobile-search-layer input:focus {
            border-color: var(--primary);
        }

        .nav-search-mobile {
            display: none;
            border: 0;
            background: transparent;
            color: var(--text);
            width: 38px;
            height: 38px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 16px;
            align-items: center;
            justify-content: center;
        }

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

        @media (max-width: 991px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }

            .article-main {
                padding-top: 16px;
            }
        }

        @media (max-width: 767px) {
            .row-top {
                height: 58px !important;
            }

            .search-box {
                display: none;
            }

            .login-link span {
                display: none;
            }

            .login-link {
                padding: 0 8px;
            }

            .login-link i {
                font-size: 18px;
            }

            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .row-sub {
                display: none;
            }

            .channel-cards {
                grid-template-columns: 1fr;
                gap: 15px;
            }

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

            .article-page-head h1 {
                font-size: 23px;
                line-height: 1.5;
            }

            .breadcrumb {
                font-size: 13px;
            }

            .breadcrumb .current {
                max-width: 180px;
            }

            .post-nav-wrap {
                grid-template-columns: 1fr;
            }

            .mobile-cta-bar {
                display: flex;
            }

            .multi-card-title {
                font-size: 19px;
            }

            .footer-bottom p {
                font-size: 12px;
            }

            body {
                padding-bottom: 70px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .article-main {
                padding-top: 6px;
            }

            .brand-mark {
                font-size: 13px;
                padding: 5px 9px;
            }

            .brand-text {
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
      --primary: #1668A2;
      --primary-dark: #115280;
      --primary-light: #E8F1F8;
      --accent: #D4761A;
      --accent-dark: #B45309;
      --bg-soft: #F6F9FC;
      --text-main: #0E1E2E;
      --text-body: #253645;
      --text-muted: #5C6F82;
      --text-disabled: #A7B4C2;
      --border-soft: #E5EAF0;
      --radius-card: 12px;
      --radius-media: 16px;
      --radius-btn: 6px;
      --shadow-card: 0 2px 12px rgba(15, 40, 70, 0.06);
      --shadow-hover: 0 8px 30px rgba(15, 40, 70, 0.10);
      --container-w: 1200px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; color: var(--text-body); background: #fff; line-height: 1.75; font-size: 15px; -webkit-font-smoothing: antialiased; }
    img { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    ul, ol { list-style: none; }
    .container { max-width: var(--container-w); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
    @media (max-width: 640px) { .container { padding-left: 16px; padding-right: 16px; } }

    /* ===== Scrollbar ===== */
    ::-webkit-scrollbar { width: 8px; height: 8px; }
    ::-webkit-scrollbar-track { background: #F0F3F7; }
    ::-webkit-scrollbar-thumb { background: #C2CED9; border-radius: 8px; }
    :focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

    /* ===== Home Header ===== */
    .site-header {
      background: #fff;
      border-bottom: 1px solid var(--border-soft);
      position: sticky;
      top: 0;
      z-index: 100;
      transition: box-shadow .3s ease;
    }
    .site-header.scrolled { box-shadow: 0 4px 18px rgba(15, 40, 70, 0.06); }
    .row-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 60px; }
    .row-sub { position: relative; border-top: 1px solid var(--border-soft); display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 44px; transition: all .3s ease; }
    .site-header.scrolled .row-sub { min-height: 40px; }
    .site-header.scrolled .row-top { height: 52px; }

    .brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
    .brand-mark { background: var(--primary); color: #fff; font-weight: 700; font-size: 14px; padding: 5px 12px; border-radius: 5px; letter-spacing: 1px; line-height: 1.4; }
    .brand-text { font-size: 15px; font-weight: 700; color: var(--text-main); letter-spacing: .5px; }
    @media (max-width: 768px) {
      .row-top { height: 56px; }
      .row-sub { border-top: none; position: fixed; top: 0; right: 0; bottom: 0; width: 280px; background: #fff; flex-direction: column; align-items: flex-start; padding: 76px 28px 20px; box-shadow: -12px 0 40px rgba(15,40,70,.12); transform: translateX(100%); transition: transform .3s ease; z-index: 200; overflow-y: auto; }
      .row-sub.nav-open { transform: translateX(0); }
      .main-nav { flex-direction: column; width: 100%; gap: 4px; }
      .main-nav a { display: block; padding: 12px 0; border-bottom: 1px solid #eef2f6; font-size: 15px; }
      .nav-trend { margin-top: 24px; padding-top: 12px; border-top: 1px solid var(--border-soft); }
    }
    .header-tools { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
    .search-box { display: flex; align-items: center; gap: 8px; background: #F2F5F8; border-radius: 999px; height: 38px; padding: 0 16px; width: 230px; transition: all .25s; border: 1px solid transparent; }
    .search-box i { color: #8A9AA8; font-size: 14px; }
    .search-box input { border: 0; background: transparent; outline: none; width: 100%; font-size: 13px; color: var(--text-body); }
    .search-box:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,104,162,.12); }
    .login-link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-main); padding: 6px 14px; border-radius: 20px; transition: all .2s; background: var(--primary-light); font-weight: 500; }
    .login-link:hover { background: #d4e3f0; }
    .nav-toggle { width: 40px; height: 40px; border: 1px solid var(--border-soft); border-radius: 10px; background: #fff; color: var(--text-main); font-size: 18px; display: none; cursor: pointer; align-items: center; justify-content: center; transition: all .2s; }
    .nav-toggle:hover { border-color: var(--primary); color: var(--primary); }
    @media (max-width: 768px) { .nav-toggle { display: flex; } .search-box { display: none; } .login-link span { display: none; } .login-link { padding: 8px; background: transparent; font-size: 18px; } .row-sub.nav-open + .nav-overlay { display: block; } }
    .main-nav { display: flex; align-items: center; gap: 4px; }
    .main-nav a { display: inline-flex; align-items: center; padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--text-body); border-radius: 6px; position: relative; transition: all .2s; }
    .main-nav a i { font-size: 13px; margin-left: 4px; }
    .main-nav a:hover { background: var(--primary-light); color: var(--primary); }
    .main-nav a.active { color: var(--primary); font-weight: 600; }
    .main-nav a.active::after { content: ''; position: absolute; bottom: 0; left: 16px; right: 16px; height: 2px; background: var(--primary); border-radius: 2px; }
    .nav-trend { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); white-space: nowrap; }
    .nav-trend .hot { color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
    .nav-trend a { color: var(--accent); font-weight: 500; padding: 4px 8px; border-radius: 4px; transition: .15s; }
    .nav-trend a:hover { color: var(--accent-dark); background: rgba(212, 118, 26, .08); }
    .nav-trend .split { color: #C3CED9; }

    .nav-overlay { position: fixed; inset: 0; background: rgba(14, 30, 46, 0.4); z-index: 190; opacity: 0; visibility: hidden; transition: .3s; }
    @media (max-width: 768px) { .nav-overlay.active { opacity: 1; visibility: visible; } }

    /* ===== Shared Footer ===== */
    .site-footer { background: #FAFBFC; border-top: 1px solid var(--border-soft); padding: 56px 0 0; margin-top: 0; }
    .footer-top { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1.6fr; gap: 40px; padding-bottom: 40px; }
    @media (max-width: 1024px) and (min-width: 641px) { .footer-top { grid-template-columns: 1fr 1fr; } }
    @media (max-width: 640px) { .footer-top { grid-template-columns: 1fr; gap: 28px; } }
    .footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
    .footer-brand-text { font-weight: 700; font-size: 16px; color: var(--text-main); }
    .footer-about { color: var(--text-muted); font-size: 13px; line-height: 1.9; }
    .footer-title { font-size: 16px; font-weight: 600; color: var(--text-main); margin-bottom: 16px; }
    .footer-links { display: flex; flex-direction: column; gap: 10px; }
    .footer-links a { color: var(--text-body); font-size: 14px; transition: .2s; display: inline-flex; align-items: center; gap: 6px; }
    .footer-links a i { font-size: 12px; color: var(--primary); transition: .2s; }
    .footer-links a:hover { color: var(--primary); transform: translateX(3px); }
    .footer-links a:hover i { transform: translateX(2px); }
    .footer-contact { display: flex; flex-direction: column; gap: 12px; }
    .footer-contact li { display: flex; align-items: flex-start; gap: 10px; color: var(--text-muted); font-size: 13px; line-height: 1.8; }
    .footer-contact i { color: var(--primary); padding-top: 3px; width: 18px; }
    .footer-bottom { border-top: 1px solid var(--border-soft); padding: 18px 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .footer-bottom p { font-size: 13px; color: var(--text-muted); margin: 0; }
    .back-top { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--primary); background: transparent; color: var(--primary); font-size: 15px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; transition: all .2s; }
    .back-top:hover { background: var(--primary); color: #fff; }
    @media (max-width: 640px) { .footer-bottom { flex-direction: column-reverse; text-align: center; } }
    @media (max-width: 768px) { body { padding-bottom: 56px; } }

    /* ===== Buttons ===== */
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 24px; border-radius: var(--radius-btn); font-size: 15px; font-weight: 600; cursor: pointer; border: 1px solid transparent; transition: all .2s; }
    .btn-primary { background: var(--primary); color: #fff; }
    .btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
    .btn-primary:active { transform: translateY(0); }
    .btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
    .btn-outline:hover { background: var(--primary-light); }
    .btn-accent { background: var(--accent); color: #fff; }
    .btn-accent:hover { background: var(--accent-dark); transform: translateY(-1px); }
    .btn-sm { height: 38px; padding: 0 20px; font-size: 14px; }
    .btn-block { width: 100%; }

    /* ===== Card / Badge ===== */
    .badge { display: inline-block; padding: 3px 10px; border-radius: 4px; background: var(--primary-light); color: var(--primary); font-size: 12px; font-weight: 600; }
    .badge-accent { background: rgba(212, 118, 26, .12); color: var(--accent); }
    .badge-soft { background: #EEF3F8; color: var(--text-muted); }
    .card-hover { transition: all .25s ease; }
    .card-hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }

    /* ===== Image Resize ===== */
    .img-placeholder { background: #E8EDF2; display: flex; align-items: center; justify-content: center; border-radius: 10px; }
    .cover-img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .img-fallback { display: flex; align-items: center; justify-content: center; background: #E8EDF2; color: #A0ADBA; font-size: 28px; }
    .img-fallback i { font-size: 28px; opacity: .6; }

    /* ===== Banner / Hero ===== */
    .page-hero { background: var(--primary-light); border-bottom: 1px solid var(--border-soft); padding: 36px 0 32px; }
    @media (min-width: 768px) {
      .page-hero { padding: 52px 0 44px; }
      .page-hero-inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 36px; }
    }

    /* ===== Section ===== */
    .section { padding: 44px 0; }
    @media (min-width: 768px) { .section { padding: 60px 0; } }
    .section-head { margin-bottom: 28px; }
    .section-inner-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 22px; }

    /* Card Grid */
    .grid-card-group { display: grid; grid-template-columns: 1fr; gap: 20px; }
    @media (min-width: 641px) { .grid-card-group { grid-template-columns: 1fr 1fr; } }
    @media (min-width: 1024px) { .grid-card-group.cols-3 { grid-template-columns: repeat(3, 1fr); } .grid-card-group.cols-4 { grid-template-columns: repeat(4, 1fr); } }

    /* ===== Feature card (colour band) ===== */
    .band-card { background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-card); overflow: hidden; transition: all .3s ease; display: flex; flex-direction: column; height: 100%; }
    .band-card .band { height: 8px; }
    .band-card .band-body { padding: 22px 22px 18px; flex: 1; display: flex; flex-direction: column; }
    .band-card h3 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; }
    .band-card p { font-size: 14px; color: var(--text-muted); flex: 1; }
    .band-card .card-footer-link { margin-top: 14px; font-size: 14px; }
    .band-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }

    /* Card: standard image card */
    .image-card { background: #fff; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); transition: all .25s; height: 100%; display: flex; flex-direction: column; }
    .image-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .image-card .img-wrap { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #E8EDF2; }
    .image-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
    .image-card .img-wrap .badge { position: absolute; left: 12px; top: 12px; }
    .image-card .card-info { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
    .image-card .card-info h3 { font-size: 16px; line-height: 1.8; font-weight: 600; color: var(--text-main); margin-bottom: 8px; }
    .image-card .card-info h3 a:hover { color: var(--primary); }
    .image-card .card-info .desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .image-card .card-meta { margin-top: auto; padding-top: 12px; display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: #A2B1C0; }

    /* Feature = 2 col zig-zag list */
    .media-list .media-row { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: center; }
    @media (min-width: 768px) {
      .media-list .media-row { grid-template-columns: 1.1fr 1fr; }
      .media-list .media-row.media-reverse .text-part { order: 2; } 
      .media-list .media-row.media-reverse .img-part { order: 1; }
    }
    .media-img { border-radius: var(--radius-media); overflow: hidden; box-shadow: var(--shadow-card); position: relative; aspect-ratio: 4/3; background: #edf2f7; }
    .media-img img { width: 100%; height: 100%; object-fit: cover; }
    .process-steps .step { display: flex; gap: 12px; margin-bottom: 16px; }
    .step-number { width: 26px; height: 26px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 600; flex-shrink: 0; margin-top: 2px; }
    .step-content h4 { font-size: 15px; font-weight: 600; color: var(--text-main); }
    .step-content p { font-size: 13.5px; color: var(--text-muted); }

    /* FQA */
    .faq-wrap { border: 1px solid var(--border-soft); border-radius: var(--radius-card); overflow: hidden; background: #fff; }
    .faq-item { border-bottom: 1px solid var(--border-soft); }
    .faq-item:last-child { border-bottom: 0; }
    .faq-q { width: 100%; padding: 0 16px; min-height: 52px; background: #fff; border: 0; text-align: left; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 15px; font-weight: 600; color: var(--text-main); font-family: inherit; }
    .faq-q .plus-icon { width: 24px; height: 24px; position: relative; flex-shrink: 0; }
    .plus-icon::before, .plus-icon::after { content: ''; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 12px; height: 2px; background: var(--primary); transition: all .2s; }
    .plus-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
    .faq-item.active .plus-icon::after { transform: translate(-50%, -50%) rotate(0deg); }
    .faq-item.active .faq-q { color: var(--primary); }
    .faq-a { display: none; padding: 0 16px 16px; }
    .faq-a p { background: var(--bg-soft); padding: 14px 20px; border-radius: 8px; font-size: 14px; color: var(--text-body); line-height: 1.9; }
    .faq-item.active .faq-a { display: block; }

    /* CTA banner */
    .cta-banner { background: var(--primary); border-radius: var(--radius-media); overflow: hidden; position: relative; }
    .cta-inner { padding: 40px 44px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
    .cta-inner h3 { color: #fff; font-size: 24px; font-weight: 700; }
    .cta-inner p { color: rgba(255,255,255,.92); font-size: 15px; margin-top: 8px; line-height: 1.8; }
    @media (max-width: 640px) { .cta-inner { padding: 28px 22px; flex-direction: column; align-items: stretch; text-align: center; } }

    /* Pagination */
    .pagination { display: flex; justify-content: center; gap: 10px; margin-top: 28px; }
    .pagination a, .pagination span { width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; border-radius: 8px; font-size: 15px; color: var(--text-body); background: #fff; border: 1px solid var(--border-soft); transition: .2s; }
    .pagination a:hover { border-color: var(--primary); color: var(--primary); }
    .pagination .current { background: var(--primary); border-color: var(--primary); color: #fff; }

    /* Section helper */
    .bg-soft { background: var(--bg-soft); }
    .text-section-title { font-size: 22px; font-weight: 700; color: var(--text-main); }
    @media (min-width: 768px) { .text-section-title { font-size: 28px; } }
    .eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--primary); margin-bottom: 6px; display: block; }
    .eyebrow-accent { color: var(--accent); }
    .desc-muted { color: var(--text-muted); font-size: 14px; line-height: 1.9; }
    @media (max-width: 768px) { .text-section-title { font-size: 22px; } }

    .sub-footer-mobile-bar {
      display: none;
    }
    @media (max-width: 767px) {
      .sub-footer-mobile-bar { display: flex; align-items: center; justify-content: space-between; padding: 10px 18px; background: rgba(255,255,255,.96); border-top: 1px solid #E2E8F0; box-shadow: 0 -4px 20px rgba(15,40,70,.05); position: fixed; left: 0; bottom: 0; width: 100%; z-index: 180; backdrop-filter: blur(6px); gap: 12px; }
      .sub-footer-mobile-bar .bar-title { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-main); white-space: nowrap; font-weight: 600; }
      .sub-footer-mobile-bar .bar-title i { color: var(--accent); }
      .sub-footer-mobile-bar .bar-actions { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }
      .sub-footer-mobile-bar .btn-mobile-soft { display: inline-flex; padding: 8px 14px; background: var(--primary-light); color: var(--primary); font-size: 13px; border-radius: 8px; font-weight: 600; white-space: nowrap; }
      .sub-footer-mobile-bar .btn-mobile-solid { display: inline-flex; padding: 8px 18px; background: var(--accent); color: #fff; font-size: 14px; border-radius: 8px; font-weight: 600; box-shadow: 0 3px 8px rgba(212,118,26,.25); white-space: nowrap; }
      .sub-footer-mobile-bar .btn-mobile-solid:active { background: var(--accent-dark); transform: scale(.97); }
    }

/* roulang page: category1 */
:root {
  --primary: #1668A2;
  --primary-dark: #0F4C7A;
  --primary-light: #E8F1F8;
  --accent: #D4761A;
  --accent-dark: #B45309;
  --accent-light: #FCF0E3;
  --page-bg: #FFFFFF;
  --soft-bg: #F6F9FC;
  --deep-soft-bg: #E8F1F8;
  --footer-bg: #FAFBFC;
  --line: #E5EAF0;
  --title: #0E1E2E;
  --body: #253645;
  --muted: #5C6F82;
  --disabled: #A7B4C2;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 2px 12px rgba(15, 40, 70, 0.06);
  --shadow-hover: 0 8px 30px rgba(15, 40, 70, 0.10);
  --shadow-hero: 0 12px 42px rgba(15, 40, 70, 0.14);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--page-bg);
  color: var(--body);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button, input { font-family: inherit; }
.container { width: 100%; max-width: 1200px; margin-left: auto; margin-right: auto; padding-left: 20px; padding-right: 20px; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(229, 234, 240, 0.8);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.site-header.is-sticky {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 6px 24px rgba(15, 40, 70, 0.08);
}
.row-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  gap: 18px;
  padding: 6px 0;
}
.row-sub {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  border-top: 1px solid rgba(229, 234, 240, 0.8);
  gap: 18px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  color: var(--primary);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.5px;
  position: relative;
}
.brand-mark::after {
  content: "";
  display: block;
  width: 24px;
  height: 3px;
  background: var(--accent);
  border-radius: 4px;
  margin-top: 3px;
}
.brand-text {
  color: var(--title);
  font-size: 14px;
  font-weight: 500;
  border-left: 1px solid var(--line);
  padding-left: 12px;
  line-height: 1.4;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 220px;
  height: 36px;
  background: #EFF3F7;
  border-radius: 8px;
  padding: 0 12px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.search-box:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 104, 162, 0.08);
}
.search-box i { color: var(--muted); font-size: 14px; }
.search-box input {
  width: 100%;
  border: 0;
  background: transparent;
  font-size: 13px;
  color: var(--title);
  outline: none;
}
.search-box input::placeholder { color: var(--disabled); }
.login-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 6px;
  font-size: 14px;
  color: var(--title);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}
.login-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--title);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}
.main-nav::-webkit-scrollbar { display: none; }
.main-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--body);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}
.main-nav a:hover { color: var(--primary); background: var(--primary-light); }
.main-nav a.active { color: var(--primary); font-weight: 600; background: rgba(232, 241, 248, 0.6); }
.main-nav a.active::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 4px;
  position: absolute;
  bottom: 3px;
  left: 50%;
  transform: translateX(-50%);
}
.main-nav a { position: relative; }
.nav-trend {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}
.nav-trend .hot { color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.nav-trend a { color: var(--accent); font-weight: 500; transition: color 0.2s; }
.nav-trend a:hover { color: var(--accent-dark); }
.nav-trend .split { color: var(--disabled); }

/* Page head */
.page-head-band {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 30px 0 34px;
}
.crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 18px;
}
.crumb a { color: var(--muted); transition: color 0.2s; }
.crumb a:hover { color: var(--primary); }
.crumb .current { color: var(--primary); font-weight: 500; }
.page-title-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}
.page-title-row h1 {
  font-size: clamp(28px, 4vw, 38px);
  color: var(--title);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.5px;
  flex: 0 0 auto;
}
.page-title-row .intro {
  max-width: 680px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  text-align: right;
}

/* Hero */
.access-hero {
  position: relative;
  background:
    linear-gradient(120deg, rgba(246, 249, 252, 0.94) 36%, rgba(232, 241, 248, 0.94)),
    url("/assets/images/backpic/back-2.webp") center center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.hero-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 52px;
  padding: 60px 20px;
}
.hero-copy .status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  padding: 6px 14px;
  border: 1px solid rgba(22, 104, 162, 0.12);
  margin-bottom: 18px;
}
.hero-copy h2 {
  font-size: clamp(24px, 3vw, 34px);
  color: var(--title);
  line-height: 1.4;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.3px;
}
.hero-copy h2 span {
  color: var(--primary);
}
.hero-copy > p {
  color: var(--body);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 24px;
  max-width: 560px;
}
.btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 34px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #1d7bbd; filter: brightness(1.08); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline { background: #fff; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); border-color: var(--primary); }
.btn-outline:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--primary-light); }
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}
.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.hero-points i { color: var(--primary); font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual .img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hero);
  background: var(--primary-light);
  aspect-ratio: 16 / 10;
}
.hero-visual .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.float-status {
  position: absolute;
  bottom: 18px;
  left: -12px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 16px;
  box-shadow: var(--shadow-hover);
}
.float-status .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #2f9a62;
  box-shadow: 0 0 0 4px rgba(47, 154, 98, 0.14);
  flex: 0 0 auto;
}
.float-status span { font-size: 13px; color: var(--body); }

/* Section */
.section-block { padding: 76px 0; }
.section-block.soft { background: var(--soft-bg); }
.section-block.white { background: #fff; }
.section-head {
  max-width: 720px;
  margin-bottom: 40px;
}
.section-head.left { text-align: left; }
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 8px;
}
.section-head h2 {
  font-size: clamp(22px, 3vw, 30px);
  color: var(--title);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
}
.section-head p { color: var(--muted); font-size: 15px; line-height: 1.9; }

/* Routes */
.route-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.route-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.route-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.route-thumb { aspect-ratio: 16 / 8; overflow: hidden; background: var(--primary-light); }
.route-thumb img { width: 100%; height: 100%; object-fit: cover; }
.route-body { padding: 24px; }
.route-body .route-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--primary);
  background: var(--primary-light);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 12px;
  font-weight: 500;
}
.route-body h3 {
  font-size: 20px;
  color: var(--title);
  font-weight: 600;
  margin-bottom: 14px;
}
.route-body ol { padding-left: 0; }
.route-body ol li {
  position: relative;
  padding-left: 32px;
  color: var(--body);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 10px;
}
.route-body ol li::before {
  content: attr(data-num);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Scenario checklist */
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.scenario-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease;
}
.scenario-item:hover { box-shadow: var(--shadow-hover); }
.scenario-num {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.scenario-item h3 { font-size: 16px; color: var(--title); margin-bottom: 4px; font-weight: 600; }
.scenario-item p { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* Content cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.content-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.content-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.content-card .card-img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--primary-light); }
.content-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.content-card:hover .card-img img { transform: scale(1.04); }
.content-card .card-img .cat-badge {
  position: absolute;
  left: 14px;
  top: 14px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  border-radius: 999px;
  padding: 4px 12px;
  box-shadow: 0 2px 6px rgba(15, 40, 70, 0.08);
}
.content-card .card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.content-card .card-body h3 { font-size: 18px; color: var(--title); line-height: 1.45; font-weight: 600; margin-bottom: 10px; }
.content-card .card-body p { font-size: 14px; color: var(--muted); line-height: 1.9; margin-bottom: 16px; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: auto;
  transition: gap 0.2s, color 0.2s;
}
.card-link:hover { color: var(--primary-dark); gap: 10px; }
.card-link i { font-size: 12px; }

/* Pagination */
.pager-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  margin-top: 40px;
}
.pager-note { font-size: 13px; color: var(--muted); }
.pager-btns { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  min-width: 36px;
  padding: 0 12px;
  font-size: 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--body);
  transition: all 0.2s ease;
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.page-btn.current { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.page-btn.disabled { color: var(--disabled); background: var(--soft-bg); pointer-events: none; }

/* FAQ */
.faq-list {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item:last-child { border-bottom: 0; }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 14px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--title);
  background: #fff;
  transition: background 0.2s, color 0.2s;
  list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q:hover { background: var(--soft-bg); }
.faq-icon {
  flex: 0 0 auto;
  color: var(--primary);
  font-size: 15px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: 50%;
  transition: transform 0.3s ease;
}
.faq-item[open] .faq-q { color: var(--primary); background: var(--soft-bg); }
.faq-item[open] .faq-icon { transform: rotate(45deg); color: #fff; background: var(--primary); }
.faq-body { padding: 0 22px 20px; color: var(--muted); line-height: 1.9; font-size: 14px; background: var(--soft-bg); }

/* CTA */
.cta-zone {
  background: var(--primary);
  position: relative;
  overflow: hidden;
}
.cta-zone::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -50px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  pointer-events: none;
}
.cta-zone::after {
  content: "";
  position: absolute;
  left: 35%;
  bottom: -110px;
  width: 300px;
  height: 220px;
  border-radius: 50%;
  background: rgba(212, 118, 26, 0.3);
  filter: blur(2px);
  pointer-events: none;
}
.cta-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 54px 20px;
  position: relative;
  z-index: 2;
}
.cta-wrap .cta-copy h2 {
  color: #fff;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}
.cta-wrap .cta-copy p { color: rgba(255,255,255,0.88); font-size: 15px; line-height: 1.9; }
.cta-wrap .cta-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

/* Footer */
.site-footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--line);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 1fr 1.2fr;
  gap: 40px;
  padding: 46px 0 36px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand .brand-mark { font-size: 20px; }
.footer-brand-text { font-size: 14px; color: var(--title); font-weight: 500; border-left: 1px solid var(--line); padding-left: 10px; line-height: 1.3; }
.footer-about { max-width: 280px; font-size: 14px; color: var(--muted); line-height: 1.9; }
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--title);
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}
.footer-links { display: flex; flex-direction: column; gap: 9px; }
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s;
}
.footer-links a i { color: var(--disabled); font-size: 12px; transition: color 0.2s; }
.footer-links a:hover { color: var(--primary); }
.footer-links a:hover i { color: var(--primary); }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li { display: flex; gap: 10px; font-size: 13px; color: var(--muted); line-height: 1.7; }
.footer-contact i { color: var(--primary); margin-top: 4px; font-size: 14px; flex: 0 0 auto; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding: 16px 0;
}
.footer-bottom p { font-size: 13px; color: var(--muted); }
.back-top {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--primary);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.back-top:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

/* Mobile fixed CTA */
.mobile-cta {
  display: none;
}
@media (max-width: 767px) {
  body { padding-bottom: 58px; }
  .mobile-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    height: 56px;
    background: rgba(255, 255, 255, 0.99);
    border-top: 1px solid var(--line);
    box-shadow: 0 -6px 18px rgba(15, 40, 70, 0.06);
    padding: 0 16px;
  }
  .mobile-cta-copy { display: flex; flex-direction: column; line-height: 1.4; gap: 2px; }
  .mobile-cta-copy strong { font-size: 14px; color: var(--title); font-weight: 600; }
  .mobile-cta-copy span { font-size: 12px; color: var(--muted); }
  .mobile-cta .btn { min-height: 36px; padding: 0 14px; font-size: 14px; }
}

/* Responsive */
@media (max-width: 1023px) {
  .row-top .search-box { width: 160px; }
  .page-title-row { gap: 24px; }
  .hero-layout { gap: 36px; padding: 44px 20px; }
  .hero-layout { grid-template-columns: 1fr 1fr; }
  .float-status { left: 12px; right: 12px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767px) {
  .row-sub {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: 0 16px 34px rgba(15, 40, 70, 0.12);
    padding: 10px 20px 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .site-header.nav-open .row-sub { display: flex; }
  .main-nav { flex-direction: column; align-items: stretch; overflow: visible; }
  .main-nav a { justify-content: flex-start; border-bottom: 1px solid var(--line); border-radius: 0; height: 44px; }
  .main-nav a:last-child { border-bottom: 0; }
  .nav-trend { display: none; }
  .nav-toggle { display: inline-flex; }
  .search-box { display: none; }
  .login-link span { display: none; }
  .login-link { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 0 10px; }
  .access-hero {
    background-position: 18% center;
  }
  .hero-layout {
    grid-template-columns: 1fr;
    padding: 40px 16px;
    gap: 28px;
  }
  .float-status { left: 16px; right: 16px; bottom: -14px; }
  .page-title-row { flex-direction: column; align-items: flex-start; gap: 12px; }
  .page-title-row .intro { text-align: left; }
  .route-wrap { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .section-block { padding: 54px 0; }
  .section-head { margin-bottom: 28px; }
  .cta-wrap { flex-direction: column; align-items: flex-start; padding: 40px 16px; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; padding: 36px 0 20px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .page-head-band { padding: 24px 0 26px; }
}
@media (min-width: 640px) and (max-width: 1023px) {
  .nav-toggle { display: none; }
  .row-sub { display: flex; }
  .nav-trend { display: none; }
}
@media (max-width: 639px) {
  .nav-toggle { display: inline-flex; }
  .row-sub { display: none; }
  .site-header.nav-open .row-sub { display: flex; }
}

/* roulang page: category3 */
:root {
      --primary: #1668A2;
      --primary-light: #E8F1F8;
      --primary-dark: #0F4E7D;
      --accent: #D4761A;
      --accent-dark: #B45309;
      --bg-body: #FFFFFF;
      --bg-soft: #F6F9FC;
      --bg-accent: #E8F1F8;
      --footer-bg: #FAFBFC;
      --border-color: #E5EAF0;
      --text-heading: #0E1E2E;
      --text-body: #253645;
      --text-muted: #5C6F82;
      --text-faint: #A7B4C2;
      --radius-btn: 6px;
      --radius-card: 12px;
      --radius-img: 16px;
      --shadow-card: 0 2px 12px rgba(15, 40, 70, 0.06);
      --shadow-card-hover: 0 8px 30px rgba(15, 40, 70, 0.10);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

    /* ===== Reset & Base ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-sans);
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-body);
      background: var(--bg-body);
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    img {
      max-width: 100%;
      display: block;
    }
    button {
      font-family: inherit;
      cursor: pointer;
    }
    input {
      font-family: inherit;
    }
    ul,
    ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    @media (max-width: 640px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    /* ===== Typography ===== */
    .h1-category {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 700;
      color: var(--text-heading);
      letter-spacing: -0.01em;
    }
    .h2-section {
      font-size: 30px;
      line-height: 1.3;
      font-weight: 700;
      color: var(--text-heading);
    }
    @media (max-width: 768px) {
      .h1-category {
        font-size: 28px;
      }
      .h2-section {
        font-size: 22px;
      }
    }
    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      letter-spacing: 0.05em;
      margin-bottom: 10px;
    }
    .section-eyebrow::before {
      content: "";
      display: inline-block;
      width: 20px;
      height: 3px;
      border-radius: 3px;
      background: var(--accent);
    }

    /* ===== Header / Navigation ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.98);
      border-bottom: 1px solid transparent;
      transition: box-shadow 0.3s ease, border-color 0.3s ease;
    }
    .site-header.is-scrolled {
      border-bottom-color: var(--border-color);
      box-shadow: 0 2px 16px rgba(15, 40, 70, 0.06);
    }
    .site-header .row-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 60px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      font-size: 15px;
      padding: 6px 12px;
      border-radius: 6px;
      letter-spacing: 0.02em;
      white-space: nowrap;
    }
    .brand-text {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-heading);
      white-space: nowrap;
      letter-spacing: 0.01em;
    }
    .header-tools {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .search-box {
      display: flex;
      align-items: center;
      gap: 8px;
      background: #F2F5F8;
      border-radius: 6px;
      padding: 0 12px;
      height: 36px;
      width: 220px;
      border: 1px solid transparent;
      transition: all 0.25s ease;
    }
    .search-box:focus-within {
      background: #fff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(22, 104, 162, 0.10);
    }
    .search-box i {
      color: var(--text-faint);
      font-size: 14px;
    }
    .search-box input {
      width: 100%;
      border: none;
      background: transparent;
      outline: none;
      font-size: 14px;
      color: var(--text-body);
    }
    .login-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-body);
      padding: 6px 10px;
      border-radius: 6px;
      transition: background 0.2s ease;
      white-space: nowrap;
    }
    .login-link:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .login-link i {
      font-size: 15px;
      color: var(--primary);
    }
    .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 20px;
      color: var(--text-heading);
      padding: 6px 8px;
      border-radius: 6px;
    }
    .nav-toggle:hover {
      background: var(--bg-soft);
    }

    .site-header .row-sub {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 48px;
      border-top: 1px solid #F0F3F6;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      height: 100%;
    }
    .main-nav a {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      border-radius: 6px;
      transition: all 0.2s ease;
      height: 36px;
      position: relative;
    }
    .main-nav a:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .main-nav a.active {
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 600;
    }
    .main-nav a.active::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 14px;
      right: 14px;
      height: 2px;
      border-radius: 2px;
      background: var(--primary);
    }
    .nav-trend {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
      white-space: nowrap;
    }
    .nav-trend .hot {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: var(--accent);
      font-weight: 600;
    }
    .nav-trend .hot i {
      font-size: 12px;
    }
    .nav-trend a {
      color: var(--accent);
      font-weight: 500;
      transition: color 0.2s ease;
    }
    .nav-trend a:hover {
      color: var(--accent-dark);
    }
    .nav-trend .split {
      color: var(--border-color);
    }

    /* Mobile Drawer */
    .drawer-mask {
      position: fixed;
      inset: 0;
      z-index: 199;
      background: rgba(14, 30, 46, 0.5);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }
    .drawer-mask.open {
      opacity: 1;
      pointer-events: auto;
    }
    .drawer-panel {
      position: fixed;
      top: 0;
      right: 0;
      bottom: 0;
      z-index: 200;
      width: 290px;
      max-width: 85%;
      background: #fff;
      box-shadow: -8px 0 32px rgba(15, 40, 70, 0.15);
      transform: translateX(100%);
      transition: transform 0.35s ease;
      display: flex;
      flex-direction: column;
      padding: 20px 16px;
    }
    .drawer-panel.open {
      transform: translateX(0);
    }
    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 20px;
      padding-bottom: 16px;
      border-bottom: 1px solid #EEF2F5;
    }
    .drawer-close {
      background: none;
      border: none;
      font-size: 22px;
      color: var(--text-muted);
      width: 36px;
      height: 36px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s ease;
    }
    .drawer-close:hover {
      background: var(--bg-soft);
    }
    .drawer-link {
      display: block;
      padding: 12px 10px;
      font-size: 16px;
      font-weight: 500;
      color: var(--text-body);
      border-radius: 8px;
      margin-bottom: 4px;
      transition: all 0.2s ease;
    }
    .drawer-link:hover,
    .drawer-link.active-mobile {
      background: var(--primary-light);
      color: var(--primary);
    }

    @media (max-width: 1023px) {
      .search-box {
        width: 160px;
      }
    }
    @media (max-width: 768px) {
      .site-header .row-top {
        height: 56px;
      }
      .search-box {
        display: none;
      }
      .login-link span {
        display: none;
      }
      .nav-toggle {
        display: inline-flex;
      }
      .site-header .row-sub {
        display: none;
      }
      .brand-mark {
        font-size: 13px;
        padding: 5px 10px;
      }
      .brand-text {
        font-size: 14px;
      }
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb-bar {
      background: var(--bg-soft);
      padding: 10px 0;
      border-bottom: 1px solid #F0F3F6;
      font-size: 13px;
      color: var(--text-muted);
    }
    .breadcrumb-bar .container {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px;
    }
    .breadcrumb-bar a {
      color: var(--primary);
      transition: color 0.2s ease;
    }
    .breadcrumb-bar a:hover {
      color: var(--accent);
    }

    /* ===== Page Header ===== */
    .category-header {
      background: #fff;
      border-bottom: 1px solid var(--border-color);
      padding: 40px 0;
    }
    .category-header .container {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
    }
    .category-header .page-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 520px;
      text-align: right;
    }
    @media (max-width: 768px) {
      .category-header {
        padding: 28px 0;
      }
      .category-header .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
      .category-header .page-desc {
        text-align: left;
        font-size: 14px;
      }
    }

    /* ===== Section Spacing ===== */
    .section-block {
      padding: 64px 0;
    }
    @media (max-width: 768px) {
      .section-block {
        padding: 48px 0;
      }
    }

    /* ===== Cards Grid ===== */
    .guide-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    @media (max-width: 1023px) {
      .guide-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 640px) {
      .guide-grid {
        grid-template-columns: 1fr;
      }
    }

    .guide-card {
      background: #fff;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid #EEF2F5;
      transition: box-shadow 0.3s ease, transform 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .guide-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    .guide-card .card-cover {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #DEE6ED;
    }
    .guide-card .card-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .guide-card:hover .card-cover img {
      transform: scale(1.04);
    }
    .guide-card .cover-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(4px);
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      box-shadow: 0 1px 6px rgba(15, 40, 70, 0.08);
    }
    .guide-card .card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .guide-card .card-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 8px;
      line-height: 1.5;
    }
    .guide-card .card-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      flex: 1;
    }
    .guide-card .card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 16px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      transition: color 0.2s ease, gap 0.2s ease;
    }
    .guide-card .card-link:hover {
      color: var(--accent);
      gap: 10px;
    }
    .guide-card .card-link i {
      font-size: 12px;
    }

    /* ===== Feature / Steps ===== */
    .steps-wrap {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      counter-reset: step;
    }
    @media (max-width: 1023px) {
      .steps-wrap {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
      }
    }
    @media (max-width: 768px) {
      .steps-wrap {
        grid-template-columns: 1fr;
        gap: 20px;
      }
    }
    .step-item {
      background: #fff;
      border-radius: var(--radius-card);
      padding: 28px 24px;
      border: 1px solid #EEF2F5;
      box-shadow: var(--shadow-card);
      transition: box-shadow 0.3s ease;
      position: relative;
    }
    .step-item:hover {
      box-shadow: var(--shadow-card-hover);
    }
    .step-item .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .step-item h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-heading);
      margin-bottom: 10px;
      line-height: 1.5;
    }
    .step-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* ===== Devices ===== */
    .device-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    @media (max-width: 1023px) {
      .device-grid {
        gap: 20px;
      }
    }
    @media (max-width: 640px) {
      .device-grid {
        grid-template-columns: 1fr;
      }
    }
    .device-card {
      background: var(--bg-soft);
      border-radius: var(--radius-card);
      padding: 28px;
      border: 1px solid #EAF0F5;
      transition: background 0.3s ease;
    }
    .device-card:hover {
      background: var(--primary-light);
    }
    .device-card .device-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 20px;
    }
    .device-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-heading);
      margin-bottom: 12px;
    }
    .device-card p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }
    .device-feature-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .feature-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #fff;
      border: 1px solid #E5EAF0;
      border-radius: 999px;
      padding: 4px 12px;
      font-size: 13px;
      color: var(--text-body);
      font-weight: 500;
    }
    .feature-chip i {
      color: var(--primary);
      font-size: 12px;
    }

    /* ===== Notice Panel ===== */
    .notice-panel {
      background: var(--bg-accent);
      border-radius: var(--radius-card);
      padding: 32px;
      display: flex;
      align-items: center;
      gap: 24px;
      border-left: 4px solid var(--primary);
    }
    .notice-panel i.notice-icon {
      font-size: 32px;
      color: var(--primary);
      flex-shrink: 0;
    }
    .notice-panel .notice-content h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-heading);
      margin-bottom: 6px;
    }
    .notice-panel .notice-content p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
    }
    @media (max-width: 640px) {
      .notice-panel {
        flex-direction: column;
        padding: 24px;
        gap: 14px;
        text-align: center;
      }
    }

    /* ===== FAQ ===== */
    .faq-container {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      overflow: hidden;
      background: #fff;
    }
    .faq-item {
      border-bottom: 1px solid var(--border-color);
    }
    .faq-item:last-child {
      border-bottom: none;
    }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 0 24px;
      min-height: 56px;
      background: none;
      border: none;
      text-align: left;
      font-size: 16px;
      font-weight: 500;
      color: var(--text-body);
      transition: color 0.2s ease;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-question .faq-icon {
      position: relative;
      width: 20px;
      height: 20px;
      flex-shrink: 0;
    }
    .faq-question .faq-icon::before,
    .faq-question .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--primary);
      border-radius: 2px;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }
    .faq-question .faq-icon::before {
      width: 16px;
      height: 2px;
      top: 9px;
      left: 2px;
    }
    .faq-question .faq-icon::after {
      width: 2px;
      height: 16px;
      top: 2px;
      left: 9px;
    }
    .faq-item.active .faq-question {
      color: var(--primary);
      font-weight: 600;
    }
    .faq-item.active .faq-icon::after {
      transform: scaleY(0);
      opacity: 0;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      background: var(--bg-soft);
    }
    .faq-answer .inner {
      padding: 18px 24px 22px;
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
    }

    /* ===== CTA Panel ===== */
    .cta-panel {
      background: linear-gradient(135deg, #1668A2 0%, #1B7CBE 100%);
      border-radius: var(--radius-img);
      padding: 52px 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      box-shadow: 0 12px 36px rgba(22, 104, 162, 0.2);
    }
    .cta-panel h2 {
      font-size: 30px;
      color: #fff;
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 10px;
    }
    .cta-panel p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 15px;
      line-height: 1.7;
    }
    .btn-white-solid {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: #fff;
      color: var(--primary);
      font-weight: 600;
      font-size: 16px;
      padding: 12px 32px;
      border-radius: var(--radius-btn);
      min-height: 48px;
      white-space: nowrap;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    }
    .btn-white-solid:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }
    .btn-white-solid:active {
      transform: translateY(0);
    }
    @media (max-width: 768px) {
      .cta-panel {
        flex-direction: column;
        text-align: center;
        padding: 40px 24px;
      }
      .cta-panel h2 {
        font-size: 24px;
      }
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--footer-bg);
      border-top: 1px solid var(--border-color);
      padding-top: 56px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 40px;
    }
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 14px;
    }
    .footer-brand-text {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-heading);
    }
    .footer-about {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 260px;
      margin-top: 12px;
    }
    .footer-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-heading);
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      color: var(--text-muted);
      transition: color 0.2s ease;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-links a i {
      font-size: 12px;
      color: var(--text-faint);
      transition: color 0.2s ease;
    }
    .footer-links a:hover i {
      color: var(--accent);
    }
    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .footer-contact li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .footer-contact li i {
      color: var(--primary);
      margin-top: 3px;
      font-size: 15px;
      width: 20px;
      text-align: center;
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 0;
      border-top: 1px solid var(--border-color);
    }
    .footer-bottom p {
      font-size: 13px;
      color: var(--text-faint);
    }
    .back-top {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      border: 1px solid var(--primary);
      background: transparent;
      color: var(--primary);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all 0.25s ease;
    }
    .back-top:hover {
      background: var(--primary);
      color: #fff;
    }
    @media (max-width: 1023px) {
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 640px) {
      .site-footer {
        padding-top: 40px;
      }
      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }

    /* ===== Mobile Bottom Bar ===== */
    .mobile-bottom-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 90;
      background: rgba(255, 255, 255, 0.98);
      border-top: 1px solid var(--border-color);
      box-shadow: 0 -4px 20px rgba(15, 40, 70, 0.06);
      padding: 8px 16px;
      height: 56px;
      align-items: center;
      justify-content: space-between;
    }
    .mobile-bottom-bar .bar-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.4;
    }
    .mobile-bottom-bar .bar-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      padding: 8px 18px;
      border-radius: var(--radius-btn);
      white-space: nowrap;
      transition: background 0.25s ease;
      border: none;
    }
    .mobile-bottom-bar .bar-btn:hover {
      background: var(--primary-dark);
    }
    @media (max-width: 767px) {
      body {
        padding-bottom: 56px;
      }
      .mobile-bottom-bar {
        display: flex;
      }
    }

    /* ===== Pagination ===== */
    .pagination-wrap {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin-top: 40px;
    }
    .page-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 38px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      background: #fff;
      color: var(--text-body);
      font-size: 14px;
      font-weight: 500;
      padding: 0 12px;
      transition: all 0.2s ease;
    }
    .page-btn:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .page-btn.active-page {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
    }

    /* ===== Focus visibility ===== */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

    @media (max-width: 480px) {
      .guide-card .card-body {
        padding: 18px;
      }
      .notice-panel {
        padding: 20px;
      }
    }