/* roulang page: index */
:root {
  --primary: #1D63D5;
  --primary-dark: #1650A8;
  --primary-light: #6C9FF0;
  --sky: #DDEEFF;
  --accent: #F5A623;
  --accent-dark: #D98E1D;
  --bg: #FAFBFC;
  --card: #FFFFFF;
  --text: #1F2933;
  --text-weak: #7B8794;
  --border: #E5E9F2;
  --radius: 8px;
  --shadow-sm: 0 2px 8px rgba(14, 30, 37, 0.05);
  --shadow-lg: 0 12px 32px rgba(14, 30, 37, 0.10);
  --header-h: 72px;
  --space-64: 64px;
  --space-96: 96px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  font-feature-settings: "tnum";
}
h1, h2, h3, h4, h5, p {
  margin-top: 0;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
a:hover {
  color: var(--primary-dark);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button,
input,
textarea,
select {
  font: inherit;
}
ul,
ol {
  margin: 0;
  padding: 0;
}
:focus-visible {
  outline: 3px solid rgba(29, 99, 213, 0.32);
  outline-offset: 2px;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 9999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
  color: #fff;
}
.container,
.grid-container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}
.section {
  padding: var(--space-96) 0;
}
.section-alt {
  background: #F2F7FF;
}
.section-header {
  max-width: 780px;
  margin-bottom: 48px;
}
.section-header.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.1em;
  font-size: 14px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-eyebrow::before {
  content: "";
  width: 14px;
  height: 3px;
  border-radius: 99px;
  background: var(--accent);
}
.section-title {
  font-size: 32px;
  line-height: 40px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  line-height: 28px;
  color: var(--text-weak);
  margin-bottom: 0;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(229, 233, 242, 0.82);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
}
.brand b {
  color: var(--primary);
}
.brand-logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-right: 6px;
}
.brand-strong {
  color: var(--text);
}
.brand-soft {
  color: var(--primary);
  font-weight: 500;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.menu-list {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}
.menu-list a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 99px;
  color: var(--text);
  font-weight: 500;
  transition: all 0.2s ease;
}
.menu-list a:hover {
  color: var(--primary);
  background: rgba(29, 99, 213, 0.06);
}
.menu-list a.active {
  color: var(--primary);
  background: rgba(29, 99, 213, 0.10);
  font-weight: 600;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-entry-btn {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  padding: 11px 24px;
  border-radius: 999px;
  font-weight: 600;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 6px 18px rgba(29, 99, 213, 0.22);
}
.nav-entry-btn:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(29, 99, 213, 0.28);
}
.nav-entry-btn:active {
  transform: translateY(0);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 20px;
  color: var(--text);
  padding: 0;
}
.hero {
  position: relative;
  background-color: #EAF3FF;
  background-image: linear-gradient(95deg, rgba(250, 251, 252, 0.98) 8%, rgba(232, 243, 255, 0.94) 45%, rgba(223, 238, 255, 0.40) 75%), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: right center;
  padding: 96px 0 88px;
  border-bottom: 1px solid rgba(229, 233, 242, 0.7);
  overflow: hidden;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 40px;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(29, 99, 213, 0.16);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 22px;
}
.hero-eyebrow i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #21A67A;
  display: inline-block;
  margin-right: 8px;
}
.hero h1 {
  font-size: 42px;
  line-height: 53px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero h1 strong {
  color: var(--primary);
}
.hero-lead {
  font-size: 18px;
  line-height: 31px;
  color: #3D4C5C;
  max-width: 560px;
  margin-bottom: 30px;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-bottom: 34px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  font-weight: 600;
  text-align: center;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  padding: 14px 32px;
  font-size: 16px;
  box-shadow: 0 8px 20px rgba(29, 99, 213, 0.22);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(29, 99, 213, 0.28);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}
.btn-outline {
  background: #fff;
  color: var(--primary);
  border-color: rgba(29, 99, 213, 0.35);
  padding: 14px 30px;
  font-size: 16px;
}
.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(29, 99, 213, 0.06);
  color: var(--primary-dark);
  transform: translateY(-1px);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  padding: 14px 32px;
  font-size: 16px;
  box-shadow: 0 8px 20px rgba(245, 166, 35, 0.26);
}
.btn-accent:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
}
.btn-accent i,
.btn-primary i,
.btn-outline i {
  font-style: normal;
  transition: transform 0.2s ease;
}
.btn-accent:hover i,
.btn-primary:hover i,
.btn-outline:hover i {
  transform: translateX(4px);
}
.btn-lg {
  padding: 16px 36px;
  font-size: 17px;
}
.hero-safe-line {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #54657A;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(229, 233, 242, 0.8);
  border-radius: 12px;
  padding: 10px 16px;
  font-size: 14px;
  max-width: 620px;
}
.hero-safe-line i {
  color: #21A67A;
}
.hero-visual {
  flex: 1;
  position: relative;
}
.hero-visual-inner {
  position: relative;
  border-radius: 20px;
  overflow: visible;
  z-index: 1;
}
.hero-visual-inner img {
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 8px solid #fff;
  object-fit: cover;
  width: 100%;
}
.hero-shadow-card {
  position: absolute;
  bottom: 18px;
  left: -18px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-radius: 14px;
  padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(229, 233, 242, 0.8);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 600;
}
.hero-shadow-card .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #21A67A;
  flex-shrink: 0;
}
.trust-section {
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.trust-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 40px 0;
}
.stat-item {
  text-align: center;
  padding: 8px 20px;
  border-right: 1px solid var(--border);
}
.stat-item:last-child {
  border-right: 0;
}
.stat-num {
  font-size: 34px;
  line-height: 42px;
  font-weight: 800;
  color: var(--primary);
}
.stat-label {
  margin-top: 4px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 22px;
}
.steps-section {
  background: var(--bg);
}
.steps-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.step-list {
  list-style: none;
}
.step-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.step-item:last-child {
  border-bottom: 0;
}
.step-number {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--sky);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 17px;
}
.step-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.step-desc {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 26px;
  margin: 0;
}
.steps-image img {
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}
.checklist-section {
  background: #fff;
}
.two-col-block {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 56px;
  align-items: center;
}
.block-illustration img {
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  width: 100%;
}
.check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.check-list li {
  display: flex;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  align-items: flex-start;
}
.check-list .list-icon {
  width: 36px;
  height: 36px;
  font-size: 17px;
  flex-shrink: 0;
  border-radius: 10px;
  background: rgba(245, 166, 35, 0.12);
  color: var(--accent-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.check-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
}
.check-list p {
  margin: 0;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 24px;
}
.support-card-section {
  background: linear-gradient(180deg, #EAF3FF 0%, var(--bg) 100%);
}
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 20px;
}
.tier-card {
  position: relative;
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 38px 28px 30px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border 0.2s ease;
}
.tier-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.tier-card .tier-label {
  display: inline-flex;
  align-self: flex-start;
  padding: 6px 16px;
  background: var(--sky);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  border-radius: 999px;
  margin-bottom: 18px;
}
.tier-card .tier-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 10px;
}
.tier-card .tier-desc {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 26px;
  margin-bottom: 24px;
}
.tier-card.featured {
  border: 2px solid var(--primary);
  box-shadow: 0 12px 32px rgba(29, 99, 213, 0.14);
  transform: scale(1.02);
}
.tier-card .featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  padding: 5px 16px;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 6px 16px rgba(29, 99, 213, 0.22);
}
.tier-card .tier-link {
  margin-top: auto;
  color: var(--primary);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
}
.tier-link i {
  transition: transform 0.2s ease;
}
.tier-link:hover i {
  transform: translateX(4px);
}
.compare-wrap {
  margin-top: 50px;
}
.support-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.support-table th,
.support-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}
.support-table th {
  background: #F5F9FF;
  font-weight: 700;
  color: var(--text);
}
.support-table .table-head-col {
  background: var(--primary);
  color: #fff;
}
.support-table .table-row-title {
  background: #FBFCFD;
  font-weight: 600;
}
.support-table tr:last-child td {
  border-bottom: 0;
}
.table-scroll {
  overflow-x: auto;
}
.activity-section {
  padding: 40px 0;
}
.activity-band {
  border-radius: 24px;
  background-image: linear-gradient(105deg, rgba(15, 49, 88, 0.94) 20%, rgba(27, 88, 174, 0.85) 70%, rgba(29, 99, 213, 0.72) 100%), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 70px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: var(--shadow-lg);
}
.activity-content h2 {
  color: #fff;
  font-size: 30px;
  margin-bottom: 12px;
}
.activity-content p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  max-width: 600px;
  margin: 0;
}
.activity-btn {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
  transition: all 0.2s ease;
}
.activity-btn:hover {
  background: #fff;
  color: var(--primary-dark);
  border-color: #fff;
  transform: translateY(-2px);
}
.cms-section {
  background: #fff;
}
.post-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}
.post-list-head .section-title {
  margin-bottom: 0;
}
.post-list {
  list-style: none;
}
.post-item {
  display: flex;
  gap: 20px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
}
.post-item:hover {
  background: rgba(29, 99, 213, 0.02);
}
.post-item:first-child {
  border-top: 1px solid var(--border);
}
.post-item-meta {
  flex-shrink: 0;
  width: 210px;
}
.time-badge {
  display: inline-block;
  background: var(--sky);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 6px;
}
.post-category {
  font-size: 13px;
  color: var(--text-weak);
}
.post-item-content {
  flex: 1;
  min-width: 0;
}
.post-item-title {
  font-size: 20px;
  line-height: 28px;
  font-weight: 700;
  margin-bottom: 6px;
}
.post-item-title a {
  color: var(--text);
}
.post-item-title a:hover {
  color: var(--primary);
}
.post-excerpt {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 26px;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-item-link {
  font-size: 15px;
  font-weight: 600;
}
.empty-panel {
  background: #F7F9FC;
  border: 1px dashed #C7D2E0;
  border-radius: 16px;
  text-align: center;
  padding: 44px 20px;
  color: var(--text-weak);
  font-size: 16px;
}
.faq-section {
  background: #F2F7FF;
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 56px;
  align-items: start;
}
.faq-intro .section-title {
  margin-bottom: 18px;
}
.faq-intro p {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 28px;
}
.faq-card {
  background: #fff;
  border-radius: 16px;
  padding: 12px 28px 8px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child {
  border-bottom: 0;
}
.faq-item summary {
  list-style: none;
  position: relative;
  padding: 20px 48px 20px 4px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  display: block;
  transition: color 0.2s ease;
}
.faq-item summary:hover {
  color: var(--primary);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  transition: transform 0.25s ease;
}
.faq-item summary .plus-ico {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-style: normal;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.faq-item details[open] summary .plus-ico {
  background: var(--primary);
  color: #fff;
  transform: translateY(-50%) rotate(45deg);
}
.faq-item .faq-answer {
  padding: 0 8px 22px 6px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 28px;
}
.cta-section {
  background: #fff;
}
.consult-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  background: #F5F9FF;
  border-radius: 24px;
  padding: 48px;
  border: 1px solid #DCE9FA;
  box-shadow: var(--shadow-sm);
}
.consult-info h2 {
  font-size: 30px;
  line-height: 40px;
  margin-bottom: 16px;
}
.consult-info p {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 28px;
  margin-bottom: 22px;
}
.consult-safe-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.consult-safe-list li {
  background: rgba(29, 99, 213, 0.08);
  color: var(--primary-dark);
  border: 1px solid rgba(29, 99, 213, 0.10);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
}
.consult-form-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  padding: 30px;
}
.form-field {
  margin-bottom: 18px;
}
.form-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid #D4DFEB;
  border-radius: 10px;
  padding: 13px 16px;
  background: #FBFCFE;
  color: var(--text);
  transition: border 0.2s ease, box-shadow 0.2s ease;
  outline: none;
  margin-bottom: 0;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29, 99, 213, 0.12);
  background: #fff;
}
.form-field textarea {
  resize: vertical;
  min-height: 110px;
}
.form-note {
  font-size: 13px;
  color: var(--text-weak);
  margin: 12px 0 0;
  line-height: 20px;
}
.form-submit {
  margin-top: 10px;
  background: var(--primary);
  border: none;
  color: #fff;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 8px 20px rgba(29, 99, 213, 0.2);
  width: 100%;
}
.form-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(29, 99, 213, 0.26);
}
.form-submit:active {
  transform: translateY(0);
}
.form-submit:disabled {
  opacity: .6;
  transform: none;
  box-shadow: none;
  cursor: not-allowed;
}
.site-footer {
  background: #F0F3F7;
  border-top: 1px solid var(--border);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand {
  color: var(--text);
  font-size: 22px;
  font-weight: 800;
  display: inline-flex;
  gap: 6px;
  margin-bottom: 12px;
}
.footer-brand strong {
  color: var(--primary);
}
.footer-about {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 27px;
  margin-bottom: 18px;
  max-width: 380px;
}
.footer-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
}
.footer-menu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-menu-list a {
  color: #3E4C5B;
  font-size: 15px;
}
.footer-menu-list a:hover {
  color: var(--primary);
}
.footer-safe-box {
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(199, 210, 229, 0.8);
  padding: 18px 20px;
  border-radius: 12px;
  color: #3E4C5B;
  font-size: 14px;
  line-height: 25px;
}
.footer-safe-box i {
  color: var(--accent-dark);
  margin-right: 6px;
}
.footer-bottom {
  border-top: 1px solid #E0E5EC;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-weak);
  font-size: 14px;
}
.footer-bottom em {
  font-style: normal;
  color: #69798A;
}
@media (max-width: 1100px) {
  .hero h1 {
    font-size: 36px;
    line-height: 47px;
  }
  .hero {
    padding: 72px 0 72px;
  }
}
@media (max-width: 1024px) {
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 18px 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .site-nav.open {
    display: flex;
  }
  .menu-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .menu-list a {
    padding: 12px 16px;
    border-radius: 10px;
  }
  .menu-list a.active {
    background: rgba(29, 99, 213, 0.10);
  }
  .nav-actions {
    margin-top: 12px;
    display: grid;
    gap: 10px;
  }
  .nav-entry-btn {
    width: 100%;
    justify-content: center;
  }
  .hero-inner {
    flex-direction: column;
    gap: 36px;
  }
  .hero-content {
    max-width: 640px;
  }
  .hero-visual {
    width: 100%;
    max-width: 620px;
    margin: 0 auto;
  }
  .trust-stats {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 30px;
  }
  .stat-item {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .stat-item:nth-last-child(-n+2) {
    border-bottom: 0;
  }
  .steps-grid,
  .two-col-block,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .tier-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }
  .tier-card.featured {
    transform: none;
  }
  .activity-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 44px 36px;
  }
  .consult-grid {
    grid-template-columns: 1fr;
    padding: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 28px;
    line-height: 37px;
  }
  .hero h1 {
    font-size: 30px;
    line-height: 39px;
  }
  .hero-lead {
    font-size: 16px;
  }
  .hero-shadow-card {
    left: 8px;
    bottom: 8px;
    padding: 10px 14px;
    font-size: 13px;
  }
  .brand {
    font-size: 20px;
  }
  .post-item {
    flex-direction: column;
    gap: 12px;
  }
  .post-item-meta {
    width: 100%;
  }
  .activity-band {
    border-radius: 18px;
    padding: 34px 24px;
  }
  .activity-content h2 {
    font-size: 25px;
  }
  .consult-grid {
    padding: 24px;
    border-radius: 16px;
  }
  .consult-form-card {
    padding: 24px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .footer-bottom {
    flex-direction: column;
  }
}
@media (max-width: 520px) {
  .container,
  .grid-container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .trust-stats {
    grid-template-columns: 1fr;
  }
  .stat-item {
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
  }
  .stat-item:last-child {
    border-bottom: 0;
  }
  .step-item {
    gap: 14px;
  }
  .section-title {
    font-size: 24px;
    line-height: 34px;
  }
  .hero h1 {
    font-size: 27px;
    line-height: 38px;
  }
  .hero-buttons .btn {
    width: 100%;
  }
  .hero-safe-line {
    font-size: 13px;
    padding: 12px;
  }
  .activity-btn {
    width: 100%;
    text-align: center;
  }
  .post-list-head {
    align-items: flex-start;
  }
  .faq-card {
    padding: 6px 18px 2px;
  }
  .faq-item summary {
    font-size: 16px;
    padding-left: 0;
    padding-right: 44px;
  }
  .faq-item .faq-answer {
    font-size: 15px;
  }
  .consult-info h2 {
    font-size: 25px;
    line-height: 34px;
  }
}

/* roulang page: article */
:root {
  --primary: #1D63D5;
  --primary-dark: #154AA3;
  --primary-soft: #DDEEFF;
  --accent: #F5A623;
  --accent-dark: #DE8F0F;
  --bg: #FAFBFC;
  --card: #FFFFFF;
  --ink: #1F2933;
  --muted: #7B8794;
  --line: #E3E9F0;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(14, 30, 37, 0.05);
  --shadow-md: 0 10px 28px rgba(14, 30, 37, 0.09);
  --space-section: 88px;
  --space-inner: 48px;
  --header-h: 72px;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-stack);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "tnum";
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

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

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5 {
  color: #17202E;
  line-height: 1.35;
  margin: 0 0 .6em;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
}

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

.container-narrow {
  max-width: 860px;
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 99;
  background: rgba(255, 255, 255, 0.86);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(227, 233, 240, 0.9);
}

.site-header .container {
  padding-left: 24px;
  padding-right: 24px;
}

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  font-size: 23px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink);
}

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

.brand-soft {
  color: var(--primary-dark);
  font-weight: 500;
}

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

.menu-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.menu-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 15px;
  color: #334155;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: color .2s, background .2s;
}

.menu-list a:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.menu-list a.active {
  color: var(--primary);
  background: #EFF5FF;
}

.nav-actions {
  display: flex;
  align-items: center;
}

.nav-entry-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 20px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  border-radius: 999px;
  box-shadow: 0 5px 14px rgba(29, 99, 213, 0.24);
  white-space: nowrap;
  transition: all .2s ease;
}

.nav-entry-btn:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 9px 20px rgba(29, 99, 213, 0.3);
}

.nav-entry-btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(29, 99, 213, 0.28);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 18px;
  border-radius: 10px;
  cursor: pointer;
  transition: background .2s, border-color .2s;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: all .2s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 5px 14px rgba(29, 99, 213, 0.22);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  box-shadow: 0 9px 20px rgba(29, 99, 213, 0.3);
}

.btn-outline {
  background: #fff;
  border-color: #C9D8EA;
  color: var(--primary);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: #F4F9FF;
  color: var(--primary-dark);
}

.btn-warm {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(245, 166, 35, .25);
}

.btn-warm:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn-warm:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(245, 166, 35, .22);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 46px;
  padding: 0 12px;
  font-weight: 700;
  color: var(--primary);
}

.article-main {
  overflow: hidden;
}

/* 文章首屏 */
.article-hero {
  position: relative;
  background:
    linear-gradient(112deg, rgba(255, 255, 255, .95) 0%, rgba(235, 245, 255, .86) 55%, rgba(221, 238, 255, .72) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  padding: 72px 0 58px;
  border-bottom: 1px solid rgba(221, 238, 255, .6);
}

.article-hero::after {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -120px;
  bottom: -160px;
  background: radial-gradient(circle, rgba(29, 99, 213, .12), transparent 70%);
  pointer-events: none;
}

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

.article-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 22px;
}

.article-crumb a {
  color: var(--muted);
}

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

.article-crumb span {
  opacity: .5;
}

.article-crumb .current {
  color: var(--ink);
  font-weight: 600;
  opacity: 1;
}

.article-kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.article-badge {
  display: inline-flex;
  align-items: center;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}

.article-badge-light {
  background: #EDF5FF;
  color: var(--primary);
  border: 1px solid #CFE2FF;
}

.article-hero .grid-x {
  align-items: center;
}

.article-hero-copy {
  padding-right: 24px;
}

.article-title {
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: 18px;
  color: #14243C;
}

.article-summary {
  font-size: 17px;
  color: #516078;
  max-width: 620px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 20px;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px dashed rgba(103, 126, 157, .25);
  padding-top: 22px;
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.meta-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
}

.safe-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #EAF9F0;
  color: #217C50;
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 600;
}

.article-hero-cover {
  position: relative;
}

.article-hero-cover img {
  width: 100%;
  border-radius: 22px;
  box-shadow: 0 22px 45px rgba(14, 30, 37, .13);
  border: 6px solid rgba(255, 255, 255, .85);
}

.article-cover-note {
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(15, 28, 46, .74);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 13px;
  padding: 8px 15px;
  border-radius: 999px;
}

/* 正文区 */
.article-body-block {
  padding: 64px 0 72px;
}

.article-prose {
  font-size: 16.5px;
  line-height: 1.9;
  color: #344054;
}

.article-prose p {
  margin-bottom: 1.25em;
}

.article-prose h2 {
  font-size: 27px;
  margin-top: 34px;
  padding-top: 12px;
}

.article-prose h3 {
  font-size: 21px;
  margin-top: 28px;
}

.article-prose a {
  border-bottom: 1px solid rgba(29, 99, 213, .3);
}

.article-prose img {
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  margin: 32px 0;
}

.article-prose blockquote {
  margin: 30px 0;
  padding: 18px 24px;
  border-left: 4px solid var(--primary);
  background: #F4F9FF;
  border-radius: 0 12px 12px 0;
  color: #405272;
  font-size: 16px;
}

.article-prose ul,
.article-prose ol {
  padding-left: 24px;
  margin: 0 0 1.4em;
}

.article-prose ul {
  list-style: disc;
}

.article-prose ol {
  list-style: decimal;
}

.article-prose li {
  margin-bottom: .55em;
}

.article-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.article-prose table th,
.article-prose table td {
  padding: 12px 14px;
  border: 1px solid var(--line);
  text-align: left;
}

.article-prose code {
  background: #EFF3FA;
  color: #B03A62;
  padding: 3px 8px;
  border-radius: 5px;
  font-size: .92em;
}

.article-prose pre {
  background: #102131;
  color: #E7F0FF;
  padding: 22px 24px;
  border-radius: 14px;
  overflow-x: auto;
  margin: 28px 0;
}

.article-prose pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.article-backbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 0 28px;
  border-top: 1px solid var(--line);
}

.article-backbar a {
  color: var(--primary);
  font-weight: 600;
}

/* 安全提示 */
.safety-strip {
  background: #F0F6FF;
  border-top: 1px solid rgba(29, 99, 213, .1);
  border-bottom: 1px solid rgba(29, 99, 213, .1);
  padding: 34px 0;
}

.safety-strip .grid-x {
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.safety-strip .safety-text h2 {
  font-size: 19px;
  margin-bottom: 5px;
}

.safety-strip .safety-text p {
  margin: 0;
  color: var(--muted);
}

.safety-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

/* FAQ */
.faq-section {
  padding: 84px 0;
  background: #fff;
}

.section-heading {
  text-align: center;
  margin-bottom: 42px;
}

.section-heading .eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .08em;
  margin-bottom: 10px;
}

.section-heading h2 {
  font-size: 32px;
  margin-bottom: 10px;
}

.section-heading p {
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto;
}

.faq-list {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #FAFBFC;
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-item.is-open {
  background: #fff;
  border-color: #C4DAFF;
  box-shadow: 0 6px 20px rgba(29, 99, 213, .06);
}

.faq-btn {
  background: transparent;
  border: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 62px;
  padding: 18px 24px;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  transition: color .2s;
}

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

.faq-btn-icon {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #EEF4FB;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: transform .3s ease, background .3s;
}

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

.faq-panel {
  display: none;
  padding: 0 24px 22px;
}

.faq-item.is-open .faq-panel {
  display: block;
  animation: faqIn .3s ease;
}

.faq-panel p {
  color: #526071;
  line-height: 1.85;
  margin: 0;
}

@keyframes faqIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* CTA */
.cta-block {
  background:
    linear-gradient(96deg, rgba(14, 31, 53, .88), rgba(29, 99, 213, .76)),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 84px 0;
}

.cta-inner {
  max-width: 720px;
  margin: 0 auto;
}

.cta-eyebrow {
  display: block;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .1em;
  font-size: 14px;
  margin-bottom: 14px;
}

.cta-block h2 {
  color: #fff;
  font-size: 32px;
  line-height: 1.4;
  margin-bottom: 12px;
}

.cta-block p {
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 28px;
}

.text-btn-onlight {
  color: #fff;
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 14px;
  font-weight: 600;
}

.text-btn-onlight:hover {
  color: var(--accent);
}

/* 404 */
.not-found-page .container {
  padding-top: 80px;
  padding-bottom: 100px;
}

.not-found-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  padding: 70px 32px;
  max-width: 640px;
  margin: 0 auto;
}

.not-found-card .error-mark {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 16px;
  background: #FFF4E5;
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 800;
}

.not-found-card h1 {
  font-size: 28px;
  margin-bottom: 10px;
}

.not-found-card p {
  color: var(--muted);
  margin-bottom: 26px;
}

/* 页脚 */
.site-footer {
  background: #EEF3F8;
  border-top: 1px solid #DCE6F0;
  color: #56657A;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr;
  gap: 44px;
  padding: 58px 0 42px;
}

.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .01em;
  margin-bottom: 16px;
}

.footer-brand span {
  color: #1F2933;
}

.footer-brand strong {
  color: var(--primary-dark);
  font-weight: 800;
}

.footer-about {
  font-size: 14px;
  line-height: 1.9;
  max-width: 420px;
}

.footer-title {
  font-size: 16px;
  color: #27415F;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-menu-list li + li {
  margin-top: 10px;
}

.footer-menu-list a {
  color: #56657A;
  font-size: 14px;
}

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

.footer-safe-box {
  background: #E9F1FB;
  border: 1px solid #D7E5F7;
  border-radius: 12px;
  padding: 17px 18px;
  font-size: 13px;
  line-height: 1.9;
  color: #496079;
}

.footer-safe-box i {
  font-style: normal;
  font-weight: 700;
  color: var(--primary);
  margin-right: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(46, 79, 118, .14);
  padding: 18px 0 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  justify-content: space-between;
  color: #7A8CA3;
  font-size: 13px;
}

/* 响应式 */
@media screen and (max-width: 1023px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    background: rgba(255, 255, 255, .98);
    border-bottom: 1px solid var(--line);
    padding: 16px 24px 22px;
    box-shadow: 0 18px 36px rgba(30, 45, 63, .12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .2s, transform .2s, visibility .2s;
  }

  .site-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .menu-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .menu-list a {
    display: flex;
    justify-content: flex-start;
    padding: 0 12px;
  }

  .nav-actions .nav-entry-btn {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
  }

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

@media screen and (max-width: 767px) {
  :root {
    --space-section: 56px;
  }

  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-header .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .brand {
    font-size: 19px;
  }

  .article-hero {
    padding: 46px 0 42px;
  }

  .article-hero-copy {
    padding-right: 0;
  }

  .article-title {
    font-size: 29px;
  }

  .article-summary {
    font-size: 15.5px;
  }

  .article-meta {
    gap: 10px 14px;
  }

  .article-body-block {
    padding: 38px 0 52px;
  }

  .article-prose {
    font-size: 15px;
    line-height: 1.9;
  }

  .article-prose h2 {
    font-size: 22px;
  }

  .article-backbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .safety-strip {
    padding: 24px 0;
  }

  .faq-section {
    padding: 52px 0;
  }

  .section-heading h2 {
    font-size: 25px;
  }

  .faq-btn {
    font-size: 15px;
    padding: 16px 18px;
    min-height: 56px;
  }

  .faq-panel {
    padding: 0 18px 18px;
  }

  .cta-block {
    padding: 56px 0;
  }

  .cta-block h2 {
    font-size: 25px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
    max-width: 320px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 44px 0 36px;
  }

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

  .footer-bottom span {
    display: block;
    width: 100%;
    text-align: center;
  }

  .nav-entry-btn {
    white-space: normal;
  }

  .not-found-page .container {
    padding-top: 50px;
    padding-bottom: 70px;
  }
}

@media (max-width: 520px) {
  .article-hero-cover {
    display: none;
  }

  .article-hero .grid-x {
    display: block;
  }

  .article-hero .cell {
    max-width: none;
  }

  .footer-bottom span:first-child {
    max-width: 100%;
  }
}

/* roulang page: category1 */
:root {
    --primary: #1D63D5;
    --primary-dark: #1650B4;
    --primary-deep: #0C3F94;
    --primary-light: #DDEEFF;
    --primary-soft: #EFF6FF;
    --accent: #F5A623;
    --accent-dark: #E09200;
    --bg: #FAFBFC;
    --white: #FFFFFF;
    --text: #1F2933;
    --muted: #7B8794;
    --border: #E4E7EB;
    --dark-line: rgba(13, 34, 64, 0.12);
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(14, 30, 37, 0.05);
    --shadow-md: 0 8px 20px rgba(14, 30, 37, 0.08);
    --shadow-lg: 0 12px 32px rgba(14, 30, 37, 0.10);
    --space-section: 88px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  h1, h2, h3, h4, p, ul, ol, figure {
    margin: 0;
  }

  ul, ol {
    padding-left: 0;
    list-style: none;
  }

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

  img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius);
  }

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

  .container {
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 24px;
  }

  section[id],
  div[id] {
    scroll-margin-top: 96px;
  }

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

  :focus-visible {
    outline: 3px solid rgba(29, 99, 213, 0.35);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
  }

  /* ========== Header / Nav ========== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(228, 231, 235, 0.8);
  }

  .header-inner {
    display: flex;
    align-items: center;
    min-height: 72px;
    position: relative;
  }

  .brand {
    display: inline-flex;
    align-items: baseline;
    font-size: 21px;
    font-weight: 800;
    letter-spacing: .04em;
    white-space: nowrap;
    color: var(--primary-deep);
  }

  .brand-strong {
    color: var(--primary-deep);
  }

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

  .site-nav {
    display: flex;
    align-items: center;
    margin-left: auto;
    gap: 32px;
  }

  .menu-list {
    display: flex;
    align-items: center;
    gap: 30px;
  }

  .menu-list a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 500;
    color: #3E4C59;
    padding: 9px 2px;
    position: relative;
  }

  .menu-list a::after {
    content: "";
    position: absolute;
    left: 50%;
    right: 50%;
    bottom: 2px;
    height: 3px;
    border-radius: 999px;
    background: var(--primary);
    transition: left .25s ease, right .25s ease;
  }

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

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

  .menu-list a.active::after {
    left: 4px;
    right: 4px;
  }

  .nav-actions {
    display: flex;
    align-items: center;
  }

  .nav-entry-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff !important;
    font-weight: 600;
    font-size: 15px;
    line-height: 1;
    padding: 12px 20px;
    border-radius: 999px;
    box-shadow: 0 6px 16px rgba(29, 99, 213, 0.25);
    transition: background .2s ease, box-shadow .2s ease, transform .15s ease;
  }

  .nav-entry-btn:hover {
    background: var(--primary-dark);
    box-shadow: 0 9px 22px rgba(29, 99, 213, 0.3);
    transform: translateY(-1px);
  }

  .nav-entry-btn:active {
    transform: translateY(0);
    box-shadow: 0 3px 8px rgba(29, 99, 213, 0.22);
  }

  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    align-items: center;
    justify-content: center;
  }

  .nav-toggle:hover {
    background: var(--primary-soft);
    border-color: var(--primary-light);
  }

  /* ========== Buttons ========== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: none;
    cursor: pointer;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1;
    padding: 14px 26px;
    transition: all .2s ease;
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 20px rgba(29, 99, 213, 0.22);
  }

  .btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(29, 99, 213, 0.28);
  }

  .btn-primary:active {
    transform: none;
    box-shadow: 0 4px 10px rgba(29, 99, 213, 0.2);
  }

  .btn-ghost {
    background: #fff;
    color: var(--primary);
    border: 1px solid rgba(29, 99, 213, 0.35);
    box-shadow: none;
  }

  .btn-ghost:hover {
    background: var(--primary-soft);
    border-color: var(--primary);
    transform: translateY(-1px);
  }

  .btn-warm {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 10px 24px rgba(245, 166, 35, 0.3);
  }

  .btn-warm:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(245, 166, 35, 0.36);
  }

  .btn-warm:active {
    transform: none;
    box-shadow: 0 4px 10px rgba(245, 166, 35, 0.22);
  }

  .btn .arrow {
    transition: transform .2s ease;
  }

  .btn:hover .arrow {
    transform: translateX(4px);
  }

  .btn.disabled,
  .btn:disabled {
    opacity: .55;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
  }

  main a {
    color: var(--primary);
  }

  /* ========== Hero banner ========== */
  .category-hero {
    background: linear-gradient(180deg, #EAF2FF 0%, #F8FBFF 55%, #FAFBFC 100%);
    padding: 68px 0 74px;
    text-align: center;
    overflow: hidden;
    border-bottom: 1px solid rgba(221, 238, 255, 0.7);
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 30px;
  }

  .breadcrumb i {
    color: #b9c5d1;
    font-size: 12px;
  }

  .hex {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(29, 99, 213, 0.08);
    color: var(--primary);
    border: 1px solid rgba(29, 99, 213, 0.16);
    border-radius: 999px;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .04em;
  }

  .category-hero h1 {
    font-size: 44px;
    line-height: 1.28;
    font-weight: 800;
    letter-spacing: .02em;
    color: var(--primary-deep);
    margin: 20px auto 16px;
    max-width: 920px;
  }

  .category-hero h1 span {
    color: var(--primary);
  }

  .hero-lead {
    max-width: 760px;
    margin: 0 auto 34px;
    font-size: 18px;
    line-height: 1.8;
    color: #52606D;
  }

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

  .hero-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 42px;
  }

  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid rgba(228, 231, 235, 0.9);
    border-radius: 999px;
    font-size: 13px;
    color: #52606D;
    padding: 8px 16px;
    box-shadow: var(--shadow-sm);
  }

  .hero-tag i {
    color: var(--primary);
    font-size: 13px;
  }

  /* ========== Section globals ========== */
  .section {
    padding: 86px 0;
  }

  .section-soft {
    background: #F1F6FD;
  }

  .section-heading {
    margin-bottom: 40px;
    max-width: 720px;
  }

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

  .section-heading .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: .08em;
    font-size: 14px;
    margin-bottom: 10px;
  }

  .section-heading h2 {
    font-size: 34px;
    line-height: 1.35;
    font-weight: 800;
    color: var(--primary-deep);
    letter-spacing: .01em;
  }

  .section-heading .lead {
    margin-top: 14px;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.8;
  }

  /* ========== 四项自检 Cards ========== */
  .check-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .check-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px 24px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
    position: relative;
  }

  .check-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 24px;
    right: 24px;
    height: 3px;
    border-radius: 0 0 6px 6px;
    background: var(--primary);
    opacity: 0;
    transition: opacity .25s ease;
  }

  .check-card:hover {
    transform: translateY(-5px);
    border-color: rgba(29, 99, 213, 0.22);
    box-shadow: var(--shadow-md);
  }

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

  .check-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 21px;
    margin-bottom: 18px;
  }

  .check-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.4;
  }

  .check-card p {
    font-size: 14px;
    line-height: 1.8;
    color: #616E7C;
  }

  /* ========== Guide flow ========== */
  .flow-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
  }

  .flow-list {
    counter-reset: flow;
    display: grid;
    gap: 18px;
    margin-top: 28px;
  }

  .flow-item {
    counter-increment: flow;
    display: flex;
    gap: 18px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    box-shadow: var(--shadow-sm);
    transition: transform .2s ease, box-shadow .2s ease;
  }

  .flow-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
  }

  .flow-item::before {
    content: counter(flow, decimal-leading-zero);
    font-size: 15px;
    font-weight: 800;
    color: var(--primary);
    background: var(--primary-soft);
    border-radius: 10px;
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 44px;
  }

  .flow-item h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
  }

  .flow-item p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.75;
  }

  .image-panel {
    position: relative;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
  }

  .image-panel img {
    width: 100%;
    height: 460px;
    object-fit: cover;
    border-radius: 0;
  }

  .floating-card {
    position: absolute;
    left: 24px;
    right: 24px;
    bottom: 20px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius);
    padding: 14px 18px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    box-shadow: var(--shadow-md);
  }

  .floating-card i {
    color: var(--primary);
    font-size: 20px;
    margin-top: 2px;
  }

  .floating-card strong {
    display: block;
    font-size: 15px;
    color: var(--text);
  }

  .floating-card span {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.6;
  }

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

  .device-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 30px 26px;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    box-shadow: var(--shadow-sm);
  }

  .device-card:hover {
    transform: translateY(-5px);
    border-color: rgba(29, 99, 213, 0.18);
    box-shadow: var(--shadow-lg);
  }

  .device-card .icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
  }

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

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

  .mini-tag {
    display: inline-flex;
    gap: 7px;
    font-size: 13px;
    color: var(--primary);
    background: var(--primary-soft);
    border-radius: 999px;
    padding: 6px 12px;
    font-weight: 600;
  }

  /* ========== Checklist panel ========== */
  .checklist-panel {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: 34px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .cl-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
  }

  .cl-title i {
    color: var(--primary);
  }

  .cl-list li {
    display: flex;
    gap: 12px;
    padding: 9px 0;
    color: #52606D;
    font-size: 15px;
    border-bottom: 1px dashed #EDEFF2;
    line-height: 1.7;
  }

  .cl-list li:last-child {
    border-bottom: 0;
  }

  .cl-list li i {
    color: #31B57A;
    margin-top: 5px;
    font-size: 14px;
    flex: 0 0 16px;
  }

  /* ========== Security band ========== */
  .security-band {
    background: linear-gradient(116deg, #0B2A5B 0%, #10407F 100%);
    border-radius: var(--radius-xl);
    padding: 44px 44px;
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 44px;
    align-items: center;
    margin-top: 8px;
  }

  .security-band h2 {
    font-size: 26px;
    line-height: 1.45;
    color: #fff;
    font-weight: 700;
    margin-bottom: 12px;
  }

  .security-band p {
    color: rgba(255, 255, 255, 0.82);
    font-size: 15px;
    line-height: 1.85;
  }

  .security-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
  }

  .security-note {
    display: flex;
    gap: 14px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin-top: 28px;
    border-left: 4px solid var(--accent);
  }

  .security-note i {
    color: var(--accent);
    font-size: 18px;
    margin-top: 3px;
  }

  .security-note p {
    font-size: 14px;
    color: #52606D;
    line-height: 1.75;
  }

  .security-note strong {
    color: var(--text);
  }

  /* ========== FAQ ========== */
  .faq-shell {
    max-width: 840px;
    margin: 40px auto 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
  }

  .faq-item + .faq-item {
    border-top: 1px solid #E8ECF0;
  }

  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
    background: transparent;
    border: none;
    padding: 24px 28px;
    cursor: pointer;
    text-align: left;
    color: var(--text);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.6;
    transition: background .2s ease;
  }

  .faq-q:hover {
    background: var(--primary-soft);
  }

  .faq-q .plus {
    flex: 0 0 34px;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 300;
    transition: transform .3s ease, background .2s ease, color .2s ease;
  }

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

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .3s ease;
  }

  .faq-a-inner {
    padding: 0 28px 22px 62px;
    font-size: 15px;
    line-height: 1.85;
    color: #616E7C;
  }

  .faq-item.active .faq-a {
    max-height: 500px;
  }

  /* ========== Bottom CTA ========== */
  .cta-section {
    padding: 90px 0 96px;
  }

  .cta-band {
    background:
      linear-gradient(rgba(9, 28, 58, 0.80), rgba(9, 28, 58, 0.82)),
      url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
    border-radius: var(--radius-xl);
    padding: 60px 64px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
  }

  .cta-band h2 {
    color: #fff;
    font-size: 34px;
    line-height: 1.4;
    font-weight: 800;
    margin-bottom: 14px;
  }

  .cta-band p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    line-height: 1.85;
    max-width: 640px;
    margin: 0 auto 30px;
  }

  .cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
  }

  .cta-band .btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
  }

  .cta-band .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.7);
  }

  /* ========== Footer ========== */
  .site-footer {
    background: #EDF1F5;
    border-top: 1px solid #DDE3EA;
    padding-top: 64px;
  }

  .site-footer .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1.2fr;
    gap: 48px;
    padding-bottom: 42px;
  }

  .footer-brand {
    font-size: 21px;
    font-weight: 800;
    color: var(--primary-deep);
    letter-spacing: .02em;
  }

  .footer-brand span {
    color: var(--primary);
    font-weight: 800;
  }

  .footer-about {
    font-size: 14px;
    color: #616E7C;
    line-height: 1.85;
    max-width: 400px;
    margin-top: 14px;
  }

  .footer-title {
    font-size: 16px;
    font-weight: 700;
    color: #1F2933;
    margin-bottom: 14px;
    position: relative;
    padding-bottom: 10px;
  }

  .footer-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 3px;
    background: var(--primary);
    border-radius: 999px;
  }

  .footer-menu-list li + li {
    margin-top: 8px;
  }

  .footer-menu-list a {
    font-size: 14px;
    color: #52606D;
    transition: color .2s ease, padding-left .2s ease;
  }

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

  .footer-safe-box {
    background: #fff;
    border: 1px solid rgba(221, 226, 235, 0.9);
    border-left: 3px solid var(--accent);
    padding: 14px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    line-height: 1.8;
    color: #52606D;
  }

  .footer-safe-box i {
    color: var(--accent);
    font-style: normal;
    font-weight: 700;
    margin-right: 4px;
  }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    border-top: 1px solid #D5DCE4;
    padding: 18px 0 24px;
    font-size: 13px;
    color: #7B8794;
  }

  .footer-bottom span {
    color: #7B8794;
  }

  /* ========== Responsive ========== */
  @media (max-width: 1023px) {
    .check-cards {
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }

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

    .image-panel img {
      height: 360px;
    }

    .device-cards {
      grid-template-columns: repeat(3, 1fr);
    }

    .section {
      padding: 72px 0;
    }

    .category-hero h1 {
      font-size: 38px;
    }

    .security-band {
      grid-template-columns: 1fr;
      gap: 26px;
    }

    .security-actions {
      align-items: flex-start;
    }

    .cta-band {
      padding: 48px 40px;
    }

    .site-header {
      padding-top: 0;
    }

    .site-nav {
      position: absolute;
      top: 72px;
      left: 0;
      width: 100%;
      background: #fff;
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      display: none;
      border: none;
      box-shadow: 0 24px 38px rgba(14, 30, 37, 0.12);
      border-radius: 0 0 16px 16px;
      padding: 12px 8px 18px;
    }

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

    .menu-list {
      width: 100%;
      flex-direction: column;
      gap: 2px;
      align-items: stretch;
    }

    .menu-list a {
      width: 100%;
      padding: 13px 18px;
      border-radius: var(--radius);
      font-size: 16px;
    }

    .menu-list a::after {
      display: none;
    }

    .menu-list a.active {
      background: var(--primary-soft);
      color: var(--primary);
    }

    .nav-actions {
      width: 100%;
      padding: 8px 12px 0;
    }

    .nav-entry-btn {
      width: 100%;
      justify-content: center;
      font-size: 16px;
      padding: 14px 20px;
    }

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

    .brand {
      margin-right: auto;
    }
  }

  @media (max-width: 767px) {
    .container {
      padding: 0 18px;
    }

    .category-hero {
      padding: 50px 0 58px;
    }

    .category-hero h1 {
      font-size: 32px;
      line-height: 1.35;
    }

    .hero-lead {
      font-size: 16px;
      line-height: 1.8;
    }

    .hero-tags {
      margin-top: 30px;
    }

    .section {
      padding: 58px 0;
    }

    .section-heading h2,
    .cta-band h2 {
      font-size: 26px;
      line-height: 1.4;
    }

    .check-cards {
      grid-template-columns: 1fr;
    }

    .device-cards {
      grid-template-columns: 1fr;
    }

    .checklist-panel {
      grid-template-columns: 1fr;
      gap: 24px;
      padding: 24px 20px;
    }

    .flow-item {
      padding: 16px;
      gap: 14px;
    }

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

    .image-panel img {
      height: 300px;
    }

    .floating-card {
      left: 14px;
      right: 14px;
      bottom: 14px;
    }

    .security-band {
      padding: 28px 22px;
    }

    .security-band h2 {
      font-size: 22px;
    }

    .cta-section {
      padding: 64px 0 70px;
    }

    .cta-band {
      padding: 40px 22px;
      border-radius: var(--radius-lg);
    }

    .cta-actions,
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }

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

    .faq-q {
      padding: 18px 18px;
      font-size: 15px;
      line-height: 1.6;
      align-items: flex-start;
    }

    .faq-a-inner {
      padding: 0 18px 20px 58px;
      font-size: 14px;
    }

    .faq-q .plus {
      flex: 0 0 32px;
      width: 32px;
      height: 32px;
    }

    .site-footer .footer-grid {
      grid-template-columns: 1fr;
      gap: 34px;
      padding-bottom: 30px;
    }

    .footer-bottom {
      align-items: flex-start;
      flex-direction: column;
      gap: 10px;
    }

    .container {
      padding-left: 18px;
      padding-right: 18px;
    }
  }

/* roulang page: category2 */
:root {
      --primary: #1D63D5;
      --primary-dark: #0B4DAF;
      --primary-deep: #0A3F91;
      --primary-light: #DDEEFF;
      --accent: #F5A623;
      --accent-dark: #E08F00;
      --bg: #FAFBFC;
      --surface: #FFFFFF;
      --text-main: #1F2933;
      --text-muted: #7B8794;
      --border: #E5E9F0;
      --border-soft: #EAF1FA;
      --radius: 18px;
      --radius-sm: 10px;
      --shadow-low: 0 2px 8px rgba(14, 30, 37, 0.05);
      --shadow-hover: 0 14px 34px rgba(14, 30, 37, 0.10);
      --header-height: 72px;
      --space-vertical: 72px;
    }

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

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

    body {
      margin: 0;
      background: var(--bg);
      color: var(--text-main);
      font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      font-feature-settings: "tnum";
    }

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

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

    ul,
    ol {
      margin: 0;
      padding: 0;
    }

    h1,
    h2,
    h3,
    h4,
    p {
      margin: 0;
    }

    button {
      font-family: inherit;
      border: 0;
      cursor: pointer;
      background: none;
    }

    :focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
      border-radius: 4px;
    }

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

    .page-shell {
      overflow: hidden;
      min-height: 100vh;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 99;
      background: rgba(255, 255, 255, 0.86);
      -webkit-backdrop-filter: blur(14px);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(220, 228, 238, 0.9);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      height: var(--header-height);
    }

    .brand {
      display: inline-flex;
      align-items: baseline;
      gap: 4px;
      flex-shrink: 0;
      font-size: 24px;
      font-weight: 800;
      letter-spacing: 0.3px;
      color: var(--primary-dark);
      line-height: 1.2;
    }

    .brand .brand-soft {
      color: var(--primary);
      font-weight: 500;
    }

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

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

    .menu-list {
      list-style: none;
      display: flex;
      align-items: center;
      gap: 6px;
      margin: 0;
      padding: 0;
    }

    .menu-list a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 14px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      line-height: 1.4;
      transition: all 0.2s ease;
    }

    .menu-list a:hover {
      color: var(--primary-dark);
      background: #F0F6FF;
    }

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

    .nav-actions {
      flex-shrink: 0;
    }

    .nav-entry-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 11px 20px;
      background: var(--primary);
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      border-radius: 999px;
      box-shadow: 0 6px 16px rgba(29, 99, 213, 0.22);
      transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
    }

    .nav-entry-btn:hover {
      background: var(--primary-dark);
      color: #fff;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(29, 99, 213, 0.28);
    }

    .nav-entry-btn span {
      transition: transform 0.2s ease;
      display: inline-block;
    }

    .nav-entry-btn:hover span {
      transform: translateX(4px);
    }

    .nav-toggle {
      display: none;
      font-size: 26px;
      color: var(--text-main);
      width: 44px;
      height: 44px;
      border-radius: 10px;
      align-items: center;
      justify-content: center;
      background: transparent;
    }

    .nav-toggle:hover {
      background: #F2F5F8;
    }

    .skip-link {
      position: absolute;
      left: -999px;
      top: 8px;
      z-index: 200;
      background: var(--primary);
      color: #fff;
      padding: 10px 16px;
      border-radius: 8px;
    }

    .skip-link:focus {
      left: 12px;
      color: #fff;
    }

    .category-hero {
      position: relative;
      color: #fff;
      padding: 76px 0 64px;
      background:
        linear-gradient(105deg, rgba(10, 52, 104, 0.96) 0%, rgba(16, 82, 166, 0.9) 42%, rgba(29, 99, 213, 0.72) 100%),
        url("/assets/images/backpic/back-1.png") center / cover no-repeat;
      isolation: isolate;
    }

    .category-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: radial-gradient(circle at 84% 20%, rgba(255, 255, 255, 0.13) 0%, transparent 42%);
      pointer-events: none;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 28px;
      color: rgba(255, 255, 255, 0.72);
      font-size: 14px;
    }

    .breadcrumb a {
      color: rgba(255, 255, 255, 0.82);
      transition: color 0.2s;
    }

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

    .breadcrumb .sep {
      color: rgba(255, 255, 255, 0.46);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.16);
      border: 1px solid rgba(255, 255, 255, 0.24);
      padding: 5px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.4px;
      color: #EAF3FF;
      margin-bottom: 18px;
    }

    .hero-grid h1 {
      font-size: clamp(32px, 4.2vw, 46px);
      line-height: 1.22;
      font-weight: 800;
      letter-spacing: 0.2px;
      margin-bottom: 20px;
      color: #fff;
    }

    .hero-lead {
      color: rgba(255, 255, 255, 0.86);
      font-size: 17px;
      line-height: 1.9;
      max-width: 620px;
    }

    .hero-actions {
      margin-top: 34px;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 14px 26px;
      border-radius: 999px;
      font-size: 16px;
      font-weight: 700;
      transition: all 0.2s ease;
      line-height: 1.4;
      cursor: pointer;
      border: 1px solid transparent;
    }

    .btn i {
      transition: transform 0.2s ease;
    }

    .btn:hover i {
      transform: translateX(4px);
    }

    .btn-light-primary {
      background: #fff;
      color: var(--primary-dark);
      box-shadow: 0 10px 24px rgba(6, 29, 63, 0.18);
    }

    .btn-light-primary:hover {
      background: #EAF2FF;
      color: var(--primary-deep);
      transform: translateY(-2px);
    }

    .btn-outline-light {
      border-color: rgba(255, 255, 255, 0.72);
      color: #fff;
      background: transparent;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.14);
      color: #fff;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 8px 22px rgba(29, 99, 213, 0.24);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      color: #fff;
      box-shadow: 0 12px 28px rgba(29, 99, 213, 0.32);
    }

    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 8px 22px rgba(245, 166, 35, 0.3);
    }

    .btn-accent:hover {
      background: var(--accent-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 26px rgba(245, 166, 35, 0.36);
    }

    .hero-visual {
      position: relative;
    }

    .hero-visual img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 24px;
      box-shadow: 0 24px 60px rgba(5, 28, 60, 0.3);
      border: 4px solid rgba(255, 255, 255, 0.22);
    }

    .mini-note {
      position: absolute;
      left: -24px;
      bottom: 26px;
      background: #fff;
      color: var(--text-main);
      box-shadow: var(--shadow-hover);
      border-radius: 14px;
      padding: 12px 16px;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 600;
      max-width: 220px;
      border-bottom: 3px solid var(--primary-light);
    }

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

    .hero-note-line {
      margin-top: 38px;
      background: rgba(255, 255, 255, 0.13);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 14px;
      padding: 14px 18px;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 14px;
      line-height: 1.7;
      color: rgba(255, 255, 255, 0.9);
    }

    .hero-note-line i {
      flex-shrink: 0;
      margin-top: 4px;
      color: #FFCE80;
    }

    .safe-intro-section {
      padding: var(--space-vertical) 0 56px;
    }

    .intro-panel {
      background: var(--surface);
      border-radius: 24px;
      padding: 56px 48px;
      box-shadow: var(--shadow-low);
      border: 1px solid #EDF1F6;
      display: grid;
      grid-template-columns: 1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: clamp(25px, 3vw, 34px);
      line-height: 1.35;
      font-weight: 800;
      color: #152A44;
      letter-spacing: 0.1px;
    }

    .section-desc {
      margin-top: 14px;
      color: var(--text-muted);
      font-size: 16px;
      line-height: 1.9;
    }

    .check-list {
      list-style: none;
      margin-top: 24px;
      display: grid;
      gap: 12px;
    }

    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      background: #F6FAFF;
      border-radius: 12px;
      padding: 12px 16px;
      font-size: 15px;
      line-height: 1.7;
      border-left: 3px solid var(--primary);
    }

    .check-list i {
      color: var(--primary);
      margin-top: 4px;
      flex-shrink: 0;
    }

    .intro-image {
      border-radius: 22px;
      overflow: hidden;
      position: relative;
      box-shadow: var(--shadow-low);
    }

    .intro-image img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .intro-image:hover img {
      transform: scale(1.02);
    }

    .shield-section {
      background: var(--primary-light);
      padding: 76px 0;
    }

    .section-head {
      text-align: center;
      max-width: 700px;
      margin: 0 auto 44px;
    }

    .section-head .section-kicker {
      justify-content: center;
    }

    .section-head .section-title {
      color: #102A47;
    }

    .section-head .section-desc {
      color: #4B627B;
    }

    .cards-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 20px;
    }

    .shield-card {
      background: var(--surface);
      border-radius: var(--radius);
      padding: 28px 24px;
      box-shadow: var(--shadow-low);
      border: 1px solid #EDF1F6;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      height: 100%;
    }

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

    .shield-icon {
      width: 54px;
      height: 54px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary-light);
      border-radius: 16px;
      font-size: 22px;
      color: var(--primary);
      margin-bottom: 22px;
    }

    .shield-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: #152A44;
      margin-bottom: 10px;
    }

    .shield-card p {
      color: var(--text-muted);
      font-size: 14.5px;
      line-height: 1.8;
    }

    .levels-section {
      padding: 80px 0 68px;
      background: #fff;
    }

    .levels-grid {
      margin-top: 24px;
      display: grid;
      grid-template-columns: 1fr 1.12fr 1fr;
      gap: 26px;
      align-items: stretch;
    }

    .level-card {
      background: #F8F9FB;
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 34px 28px;
      position: relative;
      transition: all 0.25s ease;
    }

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

    .level-card.recommend {
      background: #0D4FAE;
      color: #fff;
      border-color: transparent;
      box-shadow: 0 22px 48px rgba(15, 78, 162, 0.28);
      transform: scale(1.02);
    }

    .level-card.recommend:hover {
      transform: translateY(-6px) scale(1.02);
      box-shadow: 0 30px 60px rgba(15, 78, 162, 0.34);
      background: #0C46A0;
    }

    .level-flag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--accent);
      color: #fff;
      border-radius: 999px;
      padding: 4px 12px;
      font-size: 12.5px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .level-card .empty-flag {
      display: block;
      height: 26px;
      margin-bottom: 16px;
    }

    .level-card h3 {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 6px;
      color: #142C46;
    }

    .level-card.recommend h3 {
      color: #fff;
    }

    .level-fit {
      font-size: 14px;
      color: var(--text-muted);
      background: rgba(29, 99, 213, 0.06);
      display: inline-flex;
      padding: 4px 10px;
      border-radius: 8px;
      margin-bottom: 16px;
    }

    .level-card.recommend .level-fit {
      background: rgba(255, 255, 255, 0.18);
      color: #DAEBFF;
    }

    .level-card ul {
      list-style: none;
      display: grid;
      gap: 10px;
      margin-top: 16px;
    }

    .level-card li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      font-size: 14.5px;
      line-height: 1.7;
    }

    .level-card li i {
      margin-top: 5px;
      color: var(--primary);
    }

    .level-card.recommend li i {
      color: #FFD379;
    }

    .scenario-section {
      padding: 72px 0;
      background: #F2F6FA;
    }

    .scenario-wrap {
      display: grid;
      grid-template-columns: 0.72fr 1.28fr;
      gap: 52px;
      align-items: start;
    }

    .scenario-intro {
      position: sticky;
      top: 100px;
    }

    .scenario-intro .section-title {
      margin: 10px 0 14px;
    }

    .scenario-intro p {
      color: var(--text-muted);
    }

    .scenario-list {
      background: var(--surface);
      border-radius: 22px;
      overflow: hidden;
      box-shadow: var(--shadow-low);
      border: 1px solid #E9EEF5;
    }

    .scenario-item {
      display: grid;
      grid-template-columns: 54px 1fr;
      gap: 16px;
      padding: 22px 26px;
      border-bottom: 1px solid #EDF1F6;
      transition: background 0.2s ease;
    }

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

    .scenario-item:hover {
      background: #F7FAFE;
    }

    .scenario-icon {
      width: 46px;
      height: 46px;
      background: var(--primary-light);
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 19px;
    }

    .scenario-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: #152A44;
      margin-bottom: 5px;
    }

    .scenario-item p {
      color: var(--text-muted);
      font-size: 14.5px;
      line-height: 1.8;
    }

    .process-section {
      padding: 76px 0 72px;
      background: #fff;
      position: relative;
    }

    .process-section::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--primary-light));
    }

    .steps-grid {
      counter-reset: step;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .step-card {
      background: var(--bg);
      border: 1px solid #E7EDF5;
      border-radius: 18px;
      padding: 30px 22px 26px;
      position: relative;
      counter-increment: step;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .step-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: transparent;
    }

    .step-card::before {
      content: "0" counter(step);
      position: absolute;
      top: 18px;
      right: 18px;
      font-size: 30px;
      font-weight: 800;
      color: rgba(29, 99, 213, 0.12);
      line-height: 1;
    }

    .step-card h3 {
      color: var(--primary);
      font-size: 18px;
      font-weight: 700;
      margin: 8px 0 10px;
      padding-right: 54px;
    }

    .step-card p {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .step-icon {
      font-size: 26px;
      color: var(--primary);
    }

    .faq-section {
      padding: 76px 0 72px;
      background: #F7F9FC;
    }

    .faq-panel {
      max-width: 820px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--surface);
      border: 1px solid #E7EDF5;
      border-radius: 16px;
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .faq-item.is-open {
      border-color: rgba(29, 99, 213, 0.45);
      box-shadow: 0 6px 18px rgba(29, 99, 213, 0.07);
    }

    .faq-q {
      margin: 0;
    }

    .faq-btn {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      width: 100%;
      padding: 19px 22px;
      text-align: left;
      font-size: 17px;
      font-weight: 600;
      color: #152A44;
      min-height: 58px;
      background: transparent;
      transition: color 0.2s ease;
    }

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

    .faq-icon {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      border: 1px solid rgba(29, 99, 213, 0.3);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 14px;
      flex-shrink: 0;
      transition: transform 0.25s ease, background 0.2s ease;
    }

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

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.9;
      border-top: 1px solid #EFF3F8;
      margin-top: 0;
      padding-top: 16px;
    }

    .is-open .faq-answer {
      display: block;
      animation: answerFade 0.25s ease;
    }

    @keyframes answerFade {
      from {
        opacity: 0;
        transform: translateY(-4px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .guide-cta {
      padding: 72px 0 80px;
      background:
        linear-gradient(108deg, rgba(13, 58, 115, 0.95) 0%, rgba(29, 99, 213, 0.92) 60%, rgba(29, 118, 213, 0.82) 100%),
        url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
      color: #fff;
    }

    .guide-card {
      max-width: 780px;
      margin: 0 auto;
      text-align: center;
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.24);
      border-radius: 28px;
      padding: 52px 44px;
    }

    .guide-card .big-icon {
      width: 70px;
      height: 70px;
      background: #fff;
      color: var(--primary);
      font-size: 28px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      box-shadow: 0 12px 28px rgba(10, 32, 74, 0.2);
    }

    .guide-card h2 {
      font-size: clamp(24px, 3vw, 32px);
      line-height: 1.4;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .guide-card p {
      color: rgba(255, 255, 255, 0.88);
      font-size: 16px;
      line-height: 1.9;
      margin-bottom: 28px;
    }

    .guide-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: center;
    }

    .site-footer {
      background: #EDF1F5;
      padding-top: 60px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 1.2fr;
      gap: 48px;
      padding-bottom: 44px;
    }

    .footer-brand {
      font-size: 25px;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .footer-brand strong {
      color: var(--primary);
      font-weight: 600;
    }

    .footer-about {
      color: #59697A;
      font-size: 14px;
      line-height: 1.9;
      max-width: 340px;
    }

    .footer-title {
      font-size: 16px;
      font-weight: 700;
      color: #1F2933;
      margin-bottom: 18px;
    }

    .footer-menu-list {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .footer-menu-list a {
      color: #4F6275;
      font-size: 15px;
      transition: all 0.2s ease;
    }

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

    .footer-safe-box {
      background: #E3EAF3;
      border-radius: 14px;
      padding: 16px 18px;
      font-size: 13.5px;
      color: #3C4F66;
      line-height: 1.8;
      display: flex;
      gap: 10px;
    }

    .footer-safe-box i {
      color: var(--accent-dark);
      font-style: normal;
      font-size: 17px;
      flex-shrink: 0;
    }

    .footer-bottom {
      border-top: 1px solid #D7DFE9;
      padding: 20px 0 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      color: #728294;
      font-size: 13px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      :root {
        --space-vertical: 62px;
      }

      .hero-grid {
        gap: 36px;
      }

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

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

      .intro-panel {
        grid-template-columns: 1fr;
        padding: 40px 28px;
        gap: 32px;
      }

      .intro-image {
        max-width: 640px;
      }

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

      .scenario-intro {
        position: static;
      }

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

    @media (max-width: 860px) {
      .header-inner {
        height: 64px;
      }

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

      .site-nav {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        background: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid #E1E8F0;
        padding: 18px 24px 24px;
        box-shadow: 0 16px 30px rgba(0, 0, 0, 0.06);
        gap: 16px;
      }

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

      .menu-list {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
      }

      .menu-list a {
        padding: 12px 14px;
        border-radius: 12px;
        justify-content: flex-start;
      }

      .nav-actions {
        width: 100%;
        margin-top: 8px;
      }

      .nav-entry-btn {
        width: 100%;
        justify-content: center;
      }

      .category-hero {
        padding: 56px 0 44px;
      }

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

      .hero-visual {
        max-width: 540px;
      }

      .mini-note {
        left: 12px;
      }

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

      .level-card.recommend {
        transform: none;
      }

      .level-card.recommend:hover {
        transform: translateY(-5px);
      }

      .guide-card {
        padding: 36px 24px;
      }
    }

    @media (max-width: 620px) {
      .cards-row {
        grid-template-columns: 1fr;
      }

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

      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .category-hero {
        padding: 42px 0 34px;
      }

      .breadcrumb {
        margin-bottom: 18px;
      }

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

      .hero-note-line {
        flex-direction: column;
      }

      .intro-panel {
        padding: 30px 18px;
        border-radius: 16px;
        box-shadow: none;
        border: 1px solid #EAF0F7;
      }

      .section-head {
        text-align: left;
      }

      .section-head .section-kicker {
        justify-content: flex-start;
      }

      .shield-section {
        padding: 56px 0;
      }

      .scenario-item {
        grid-template-columns: 1fr;
      }

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

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .guide-card {
        padding: 30px 18px;
      }

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

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