/* roulang page: index */
/* ==================== 设计变量 ==================== */
:root {
  --c-primary: #1565c0;
  --c-primary-darker: #0d47a1;
  --c-primary-soft: #e8f1fc;
  --c-accent: #ff8f00;
  --c-accent-soft: #fff3e0;
  --c-dark: #0f172a;
  --c-body-bg: #f4f7fb;
  --c-card-bg: #ffffff;
  --c-text: #334155;
  --c-text-muted: #64748b;
  --c-border: #e2e8f0;
  --c-footer-bg: #0b1220;
  --c-footer-text: #94a3b8;
  --c-white: #ffffff;
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(15,23,42,.05);
  --shadow-md: 0 8px 26px rgba(15,23,42,.08);
  --shadow-lg: 0 16px 44px rgba(15,23,42,.12);
  --transition: all .25s ease;
  --space-section: 88px;
}

/* ==================== 基础 Reset ==================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-body-bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: inline-block;
  vertical-align: middle;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  line-height: 1.3;
  font-weight: 700;
  color: var(--c-dark);
}
p {
  margin: 0;
}
button,
input,
select,
textarea {
  font: inherit;
  outline: none;
}
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==================== 通用按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--r-md);
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  font-size: 15px;
  line-height: 1.4;
  text-align: center;
}
.btn-primary {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
}
.btn-primary:hover {
  background: var(--c-primary-darker);
  border-color: var(--c-primary-darker);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(21,101,192,.28);
}
.btn-outline {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,.7);
}
.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--c-white);
  transform: translateY(-2px);
}
.btn-accent {
  background: var(--c-accent);
  color: var(--c-white);
  border-color: var(--c-accent);
}
.btn-accent:hover {
  background: #f57c00;
  border-color: #f57c00;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255,143,0,.3);
}
.btn-light {
  background: var(--c-white);
  color: var(--c-primary);
  border-color: var(--c-white);
}
.btn-light:hover {
  background: var(--c-primary-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-lg {
  padding: 16px 38px;
  font-size: 16px;
}

/* ==================== Header 导航 ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--c-white);
  box-shadow: 0 2px 12px rgba(15,23,42,.06);
}
.header-top {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  gap: 24px;
}
.brand-area {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--c-dark);
  letter-spacing: .5px;
}
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--c-primary), #42a5f5);
  border-radius: 12px;
  color: var(--c-white);
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(21,101,192,.25);
}
.brand-name {
  color: var(--c-primary-darker);
}
.brand-tag {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-accent);
  background: var(--c-accent-soft);
  border: 1px solid #ffe0b2;
  padding: 2px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.header-search {
  display: flex;
  align-items: center;
  flex: 0 0 320px;
}
.search-wrap {
  position: relative;
  width: 100%;
}
.search-wrap input {
  width: 100%;
  height: 42px;
  border: 1.5px solid var(--c-border);
  border-radius: 30px;
  padding: 0 46px 0 18px;
  font-size: 14px;
  background: #f8fafc;
  transition: var(--transition);
}
.search-wrap input:focus {
  border-color: var(--c-primary);
  background: var(--c-white);
  box-shadow: 0 0 0 3px rgba(21,101,192,.1);
}
.search-wrap button {
  position: absolute;
  right: 4px;
  top: 4px;
  width: 34px;
  height: 34px;
  border: none;
  background: var(--c-primary);
  color: var(--c-white);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}
.search-wrap button:hover {
  background: var(--c-primary-darker);
}
.header-nav {
  background: var(--c-white);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-menu > li > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  border-radius: 8px;
  transition: var(--transition);
}
.nav-menu > li > a i {
  font-size: 14px;
  color: var(--c-text-muted);
}
.nav-menu > li.active > a {
  background: var(--c-primary-soft);
  color: var(--c-primary);
}
.nav-menu > li > a:hover {
  background: var(--c-primary-soft);
  color: var(--c-primary);
}
.nav-menu > li > a:hover i {
  color: var(--c-primary);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 18px;
}
.nav-cta .btn {
  padding: 9px 24px;
  font-size: 14px;
}
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 22px;
  color: var(--c-dark);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
}
.mobile-toggle:hover {
  background: var(--c-primary-soft);
}

/* ==================== Hero ==================== */
.hero-section {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  z-index: 0;
  transform: scale(1.05);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(11,18,32,.92) 0%, rgba(13,35,64,.78) 48%, rgba(21,101,192,.35) 100%);
  z-index: 1;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 48px;
  padding-top: 70px;
  padding-bottom: 70px;
}
.hero-content {
  flex: 1;
  max-width: 600px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: var(--c-white);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
}
.hero-badge i {
  color: #ffca28;
}
.hero-content h1 {
  font-size: 46px;
  font-weight: 800;
  color: var(--c-white);
  line-height: 1.2;
  margin-bottom: 18px;
}
.hero-content h1 span {
  color: #ffca28;
}
.hero-lead {
  color: rgba(255,255,255,.86);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 30px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}
.hero-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.22);
  color: rgba(255,255,255,.92);
  padding: 5px 14px;
  border-radius: 24px;
  font-size: 13px;
}
.hero-tags .tag i {
  color: #81d4fa;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-panel {
  flex: 0 0 380px;
  background: rgba(255,255,255,.96);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.hero-panel-header {
  background: var(--c-primary);
  color: var(--c-white);
  padding: 18px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hero-panel-header h3 {
  color: var(--c-white);
  font-size: 18px;
}
.hero-panel-body {
  padding: 26px;
}
.login-demo-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-dark);
  margin-bottom: 6px;
}
.login-demo-form input {
  width: 100%;
  height: 44px;
  border: 1.5px solid var(--c-border);
  border-radius: 10px;
  padding: 0 14px;
  font-size: 14px;
  margin-bottom: 16px;
  background: #f8fafc;
  transition: var(--transition);
}
.login-demo-form input:focus {
  border-color: var(--c-primary);
  background: var(--c-white);
  box-shadow: 0 0 0 3px rgba(21,101,192,.1);
}
.login-demo-btn {
  width: 100%;
  height: 46px;
  background: var(--c-accent);
  color: var(--c-white);
  border: none;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 14px;
}
.login-demo-btn:hover {
  background: #f57c00;
  transform: translateY(-1px);
}
.login-demo-tip {
  font-size: 12px;
  color: var(--c-text-muted);
  text-align: center;
  line-height: 1.5;
}
.hero-panel-info {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 26px;
  background: #f8fafc;
  border-top: 1px solid var(--c-border);
}
.hero-panel-info i {
  color: var(--c-primary);
  font-size: 20px;
}
.hero-panel-info span {
  font-size: 13px;
  color: var(--c-text-muted);
}

/* ==================== 数据统计 ==================== */
.stats-section {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  padding: 46px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 18px 12px;
}
.stat-number {
  font-size: 38px;
  font-weight: 800;
  color: var(--c-primary);
  line-height: 1.2;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.stat-number span {
  font-size: 20px;
  font-weight: 700;
}
.stat-label {
  color: var(--c-text-muted);
  font-size: 15px;
  font-weight: 500;
}
.stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  font-size: 22px;
  margin-bottom: 12px;
}

/* ==================== 通用板块 ==================== */
.section {
  padding: var(--space-section) 0;
}
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header .section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--c-primary);
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: var(--c-primary-soft);
  padding: 5px 16px;
  border-radius: 24px;
  margin-bottom: 14px;
}
.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--c-dark);
  margin-bottom: 14px;
  letter-spacing: .5px;
}
.section-subtitle {
  color: var(--c-text-muted);
  font-size: 16px;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.7;
}
.section-bg-light {
  background: var(--c-white);
}
.section-bg-muted {
  background: #f1f5f9;
}
.section-bg-dark {
  background: var(--c-dark);
}

/* ==================== 功能特点 ==================== */
.feature-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 32px 26px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-card:hover::after {
  transform: scaleX(1);
}
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  font-size: 22px;
  color: var(--c-white);
  background: linear-gradient(135deg, var(--c-primary), #42a5f5);
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(21,101,192,.22);
}
.feature-icon.accent {
  background: linear-gradient(135deg, var(--c-accent), #ffb74d);
  box-shadow: 0 6px 16px rgba(255,143,0,.22);
}
.feature-icon.green {
  background: linear-gradient(135deg, #2e7d32, #81c784);
  box-shadow: 0 6px 16px rgba(46,125,50,.2);
}
.feature-icon.purple {
  background: linear-gradient(135deg, #7b1fa2, #ba68c8);
  box-shadow: 0 6px 16px rgba(123,31,162,.2);
}
.feature-card h3 {
  font-size: 19px;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--c-text-muted);
  font-size: 14.5px;
  line-height: 1.7;
}

/* ==================== 分类入口 ==================== */
.category-card {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  height: 320px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  background: var(--c-dark);
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.category-card:hover img {
  transform: scale(1.06);
}
.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,18,32,.1) 0%, rgba(11,18,32,.55) 50%, rgba(11,18,32,.88) 100%);
  z-index: 1;
}
.category-content {
  position: relative;
  z-index: 2;
  padding: 28px;
  color: var(--c-white);
  width: 100%;
}
.category-content .cat-label {
  display: inline-block;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.3);
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  backdrop-filter: blur(4px);
  margin-bottom: 10px;
}
.category-content h3 {
  color: var(--c-white);
  font-size: 22px;
  margin-bottom: 8px;
}
.category-content p {
  color: rgba(255,255,255,.82);
  font-size: 14px;
  margin-bottom: 14px;
  line-height: 1.6;
}
.category-link {
  color: var(--c-white);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-bottom: 2px solid rgba(255,255,255,.4);
  padding-bottom: 2px;
  transition: var(--transition);
}
.category-link:hover {
  color: #ffca28;
  border-color: #ffca28;
}

/* ==================== 资讯列表 ==================== */
.news-card {
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 26px;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: transparent;
}
.news-card-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 16px;
  margin-bottom: 14px;
}
.news-card h3 {
  font-size: 17px;
  line-height: 1.5;
  margin-bottom: 10px;
  transition: var(--transition);
}
.news-card h3 a {
  color: var(--c-dark);
}
.news-card h3 a:hover {
  color: var(--c-primary);
}
.news-card p {
  color: var(--c-text-muted);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--c-border);
  padding-top: 14px;
}
.news-card-meta time {
  font-size: 13px;
  color: var(--c-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.news-card-meta a {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-card-meta a:hover {
  color: var(--c-accent);
}
.empty-state {
  text-align: center;
  padding: 50px 20px;
  background: var(--c-white);
  border: 1px dashed var(--c-border);
  border-radius: var(--r-lg);
  grid-column: 1 / -1;
}
.empty-state i {
  font-size: 42px;
  color: var(--c-text-muted);
  margin-bottom: 12px;
  opacity: .4;
}
.empty-state p {
  color: var(--c-text-muted);
  font-size: 15px;
}

/* ==================== 流程步骤 ==================== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}
.process-card {
  background: var(--c-white);
  border-radius: var(--r-lg);
  padding: 34px 24px;
  border: 1px solid var(--c-border);
  position: relative;
  text-align: center;
  transition: var(--transition);
}
.process-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.process-step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-primary);
  color: var(--c-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 18px;
  box-shadow: 0 6px 14px rgba(21,101,192,.25);
}
.process-card:nth-child(2) .process-step-num {
  background: var(--c-accent);
  box-shadow: 0 6px 14px rgba(255,143,0,.25);
}
.process-card:nth-child(3) .process-step-num {
  background: #2e7d32;
  box-shadow: 0 6px 14px rgba(46,125,50,.25);
}
.process-card:nth-child(4) .process-step-num {
  background: #7b1fa2;
  box-shadow: 0 6px 14px rgba(123,31,162,.25);
}
.process-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.process-card p {
  color: var(--c-text-muted);
  font-size: 14px;
  line-height: 1.7;
}
.process-arrow {
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-border);
  font-size: 20px;
  z-index: 2;
  background: transparent;
}
.process-card:last-child .process-arrow {
  display: none;
}

/* ==================== 安全提示 ==================== */
.security-section {
  background: url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
  position: relative;
}
.security-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,18,32,.94) 0%, rgba(11,18,32,.82) 100%);
}
.security-inner {
  position: relative;
  z-index: 2;
}
.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.security-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--r-lg);
  padding: 26px;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.security-card:hover {
  background: rgba(255,255,255,.12);
  transform: translateY(-4px);
}
.security-card i {
  font-size: 26px;
  color: #ffca28;
  margin-bottom: 14px;
}
.security-card h3 {
  color: var(--c-white);
  font-size: 17px;
  margin-bottom: 10px;
}
.security-card p {
  color: rgba(255,255,255,.72);
  font-size: 13.5px;
  line-height: 1.65;
}

/* ==================== 用户反馈 ==================== */
.review-card {
  background: var(--c-white);
  border-radius: var(--r-lg);
  padding: 28px;
  border: 1px solid var(--c-border);
  height: 100%;
  transition: var(--transition);
}
.review-card:hover {
  box-shadow: var(--shadow-md);
}
.stars {
  color: #ffb300;
  font-size: 15px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}
.review-card blockquote {
  margin: 0 0 18px 0;
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.8;
}
.review-card blockquote::before {
  content: "\f10d";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--c-primary);
  margin-right: 8px;
  opacity: .35;
}
.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--c-border);
  padding-top: 16px;
}
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}
.review-user .name {
  font-weight: 700;
  color: var(--c-dark);
  font-size: 15px;
}
.review-user .role {
  font-size: 13px;
  color: var(--c-text-muted);
}

/* ==================== FAQ ==================== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open {
  border-color: var(--c-primary);
  box-shadow: 0 6px 18px rgba(21,101,192,.08);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-dark);
  text-align: left;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--c-primary);
}
.faq-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon {
  background: var(--c-primary);
  color: var(--c-white);
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 22px;
  transition: max-height .35s ease, padding .35s ease;
  color: var(--c-text-muted);
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 22px 22px;
}

/* ==================== CTA ==================== */
.cta-section {
  background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  position: relative;
  padding: 100px 0;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(21,101,192,.9) 0%, rgba(11,18,32,.88) 100%);
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  color: var(--c-white);
}
.cta-inner h2 {
  color: var(--c-white);
  font-size: 36px;
  margin-bottom: 16px;
}
.cta-inner p {
  color: rgba(255,255,255,.82);
  font-size: 17px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==================== 页脚 ==================== */
.site-footer {
  background: var(--c-footer-bg);
  color: var(--c-footer-text);
  padding: 60px 0 24px;
}
.footer-brand {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand i {
  color: #42a5f5;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-footer-text);
  max-width: 320px;
  margin-bottom: 20px;
}
.footer-title {
  color: var(--c-white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: var(--c-footer-text);
  font-size: 14px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: #ffca28;
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 10px;
}
.footer-contact li i {
  color: #42a5f5;
  margin-top: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 44px;
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}
.footer-bottom a {
  color: var(--c-footer-text);
}
.footer-bottom a:hover {
  color: #ffca28;
}

/* ==================== 返回顶部 ==================== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--c-primary);
  color: var(--c-white);
  border: none;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(21,101,192,.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
  z-index: 999;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--c-primary-darker);
  transform: translateY(-3px);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .header-search {
    flex: 0 0 240px;
  }
  .hero-inner {
    gap: 30px;
  }
  .hero-panel {
    flex: 0 0 340px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .process-arrow {
    display: none;
  }
  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 56px;
  }
  .header-top-inner {
    height: auto;
    padding: 12px 0;
    flex-wrap: wrap;
  }
  .header-search {
    flex: 1 1 100%;
    order: 3;
    margin-top: 10px;
  }
  .mobile-toggle {
    display: block;
  }
  .header-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: 280px;
    background: var(--c-white);
    box-shadow: -8px 0 30px rgba(0,0,0,.12);
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 1100;
    overflow-y: auto;
    padding: 24px;
  }
  .site-header.nav-open .header-nav {
    transform: translateX(0);
  }
  .nav-inner {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 18px;
  }
  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .nav-menu > li > a {
    display: flex;
    padding: 12px 14px;
  }
  .nav-cta {
    margin-top: 10px;
  }
  .nav-cta .btn {
    width: 100%;
  }
  .mobile-menu-close {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    border-bottom: 1px solid var(--c-border);
    padding-bottom: 14px;
    margin-bottom: 10px;
  }
  .mobile-menu-close button {
    background: none;
    border: none;
    font-size: 22px;
    color: var(--c-dark);
    cursor: pointer;
    padding: 6px;
  }
  .hero-inner {
    flex-direction: column;
    padding-top: 56px;
    padding-bottom: 56px;
    gap: 36px;
  }
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  .hero-content h1 {
    font-size: 34px;
  }
  .hero-lead {
    font-size: 16px;
  }
  .hero-tags,
  .hero-actions {
    justify-content: center;
  }
  .hero-panel {
    flex: 1 1 100%;
    max-width: 420px;
    margin: 0 auto;
    width: 100%;
  }
  .section-title {
    font-size: 28px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .stat-number {
    font-size: 30px;
  }
  .security-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero-content h1 {
    font-size: 28px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stat-number {
    font-size: 26px;
  }
  .process-steps {
    grid-template-columns: 1fr;
  }
  .security-grid {
    grid-template-columns: 1fr;
  }
  .feature-card {
    padding: 24px 20px;
  }
  .category-content {
    padding: 22px;
  }
  .cta-inner h2 {
    font-size: 28px;
  }
  .cta-buttons .btn {
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
  .brand-tag {
    display: none;
  }
}

/* roulang page: category1 */
:root {
            --primary: #0e6ba8;
            --primary-dark: #0b2545;
            --primary-light: #e8f2fa;
            --accent: #f0a500;
            --accent-dark: #d18e00;
            --bg-light: #f6f9fc;
            --bg-white: #ffffff;
            --text-main: #1e2a38;
            --text-muted: #5b6b7b;
            --text-light: #8b9aac;
            --border: #e3ebf2;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(11, 37, 69, .06);
            --shadow-md: 0 6px 20px rgba(11, 37, 69, .08);
            --shadow-lg: 0 16px 40px rgba(11, 37, 69, .12);
            --spacing-xl: 92px;
            --spacing-lg: 64px;
            --spacing-md: 40px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            background: var(--bg-white);
        }
        .header-top {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }
        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
            gap: 20px;
        }
        .brand-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: .4px;
        }
        .brand-logo:hover {
            color: var(--primary);
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #22b3c1);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(14, 107, 168, .28);
        }
        .brand-name {
            font-size: 21px;
            font-weight: 800;
        }
        .brand-tag {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            border: 1px solid rgba(14, 107, 168, .14);
            white-space: nowrap;
        }
        .header-search {
            flex: 0 0 auto;
            max-width: 320px;
            width: 100%;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 6px 6px 6px 16px;
            transition: border-color .25s ease, box-shadow .25s ease;
        }
        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(14, 107, 168, .1);
        }
        .search-wrap input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-main);
            min-width: 0;
        }
        .search-wrap input::placeholder {
            color: var(--text-light);
        }
        .search-wrap button {
            width: 34px;
            height: 34px;
            border: none;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            cursor: pointer;
            transition: background .25s ease, transform .25s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }
        .search-wrap button:hover {
            background: var(--primary-dark);
            transform: scale(1.05);
        }
        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--bg-white);
            font-size: 18px;
            color: var(--primary-dark);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: background .25s ease;
        }
        .mobile-toggle:hover {
            background: var(--primary-light);
        }
        .header-nav {
            background: var(--primary-dark);
            border-top: 1px solid rgba(255, 255, 255, .04);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 52px;
            gap: 24px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
        }
        .nav-menu li {
            margin: 0;
        }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 12px 18px;
            color: rgba(255, 255, 255, .82);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all .25s ease;
        }
        .nav-menu a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }
        .nav-menu a i {
            font-size: 14px;
            opacity: .75;
        }
        .nav-menu li.active>a {
            color: #fff;
            background: rgba(255, 255, 255, .12);
            font-weight: 600;
            box-shadow: inset 0 -2px 0 var(--accent);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 32px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all .25s ease;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 4px 14px rgba(240, 165, 0, .3);
        }
        .btn-primary:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(240, 165, 0, .38);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary-dark);
        }
        .btn-light:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .mobile-menu-close {
            display: none;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, rgba(11, 37, 69, .92), rgba(14, 107, 168, .78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 74px 0 84px;
            overflow: hidden;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            right: -60px;
            top: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .85);
        }
        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, .5);
        }
        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .page-banner h1 span {
            color: var(--accent);
        }
        .banner-desc {
            max-width: 660px;
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 22px;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-tag {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #fff;
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 30px;
            backdrop-filter: blur(4px);
        }

        /* ===== Section ===== */
        .section {
            padding: var(--spacing-lg) 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-head {
            text-align: center;
            margin-bottom: var(--spacing-md);
        }
        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            border: 1px solid rgba(14, 107, 168, .12);
            padding: 5px 16px;
            border-radius: 30px;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
        }

        /* ===== Overview ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .overview-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .overview-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .overview-image:hover img {
            transform: scale(1.03);
        }
        .overview-badge {
            position: absolute;
            left: 20px;
            bottom: 20px;
            background: rgba(255, 255, 255, .94);
            border-radius: var(--radius-md);
            padding: 12px 18px;
            box-shadow: var(--shadow-md);
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            max-width: 260px;
        }
        .overview-badge i {
            color: var(--accent);
            font-size: 20px;
        }
        .overview-content h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .overview-content .lead {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 24px;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 28px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 18px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all .25s ease;
        }
        .feature-list li:hover {
            border-color: rgba(14, 107, 168, .25);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .feature-list li i {
            color: var(--primary);
            font-size: 18px;
            margin-top: 3px;
            flex-shrink: 0;
            width: 24px;
            text-align: center;
        }
        .feature-list li strong {
            display: block;
            font-size: 15px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 2px;
        }
        .feature-list li span {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ===== Process ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-card {
            position: relative;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px 26px;
            text-align: center;
            transition: all .3s ease;
            overflow: hidden;
        }
        .process-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), #22b3c1);
            opacity: 0;
            transition: opacity .3s ease;
        }
        .process-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(14, 107, 168, .18);
        }
        .process-card:hover::before {
            opacity: 1;
        }
        .process-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 18px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all .3s ease;
        }
        .process-card:hover .process-num {
            background: var(--primary);
            color: #fff;
        }
        .process-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }
        .process-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Guide Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(14, 107, 168, .16);
        }
        .guide-card-media {
            position: relative;
            overflow: hidden;
            height: 190px;
        }
        .guide-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }
        .guide-card:hover .guide-card-media img {
            transform: scale(1.05);
        }
        .guide-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(11, 37, 69, .82);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }
        .guide-card-body {
            padding: 24px 24px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.45;
            margin-bottom: 10px;
            transition: color .25s ease;
        }
        .guide-card:hover .guide-card-body h3 {
            color: var(--primary);
        }
        .guide-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }
        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .guide-card-meta .tag-soft {
            font-size: 12px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 10px;
            border-radius: 20px;
            font-weight: 600;
        }
        .guide-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .25s ease;
        }
        .guide-card-link:hover {
            gap: 10px;
        }

        /* ===== Compare ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .compare-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px 26px;
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
        }
        .compare-card::after {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--primary-light);
            opacity: .4;
            transition: transform .3s ease;
        }
        .compare-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(14, 107, 168, .2);
            transform: translateY(-4px);
        }
        .compare-card:hover::after {
            transform: scale(1.3);
        }
        .compare-card .compare-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }
        .compare-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
        }
        .compare-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .compare-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            padding: 7px 0;
            border-bottom: 1px dashed var(--border);
        }
        .compare-item:last-child {
            border-bottom: none;
        }
        .score-block {
            margin-top: 16px;
        }
        .score-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .score-bar {
            height: 7px;
            border-radius: 8px;
            background: var(--bg-light);
            overflow: hidden;
        }
        .score-bar span {
            display: block;
            height: 100%;
            border-radius: 8px;
            background: linear-gradient(90deg, var(--primary), #22b3c1);
        }
        .score-bar.highlight span {
            background: linear-gradient(90deg, var(--accent), #f7c34f);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all .25s ease;
        }
        .faq-item:hover {
            border-color: rgba(14, 107, 168, .2);
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            list-style: none;
            transition: background .25s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 13px;
            transition: all .3s ease;
        }
        .faq-item[open] summary {
            background: var(--primary-light);
        }
        .faq-item[open] summary .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            border-top: 1px solid rgba(14, 107, 168, .08);
            padding-top: 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), #104a7a), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode: multiply;
            color: #fff;
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(11, 37, 69, .45);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Related ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .related-media {
            height: 150px;
            overflow: hidden;
        }
        .related-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover .related-media img {
            transform: scale(1.05);
        }
        .related-body {
            padding: 18px 20px;
            flex: 1;
        }
        .related-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            line-height: 1.45;
            transition: color .25s ease;
        }
        .related-card:hover .related-body h3 {
            color: var(--primary);
        }
        .related-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .related-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent);
            background: rgba(240, 165, 0, .08);
            border: 1px solid rgba(240, 165, 0, .2);
            padding: 3px 10px;
            border-radius: 20px;
            margin-top: 12px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .75);
            padding: 56px 0 0;
            font-size: 14px;
        }
        .site-footer .row {
            margin-bottom: 36px;
        }
        .site-footer .columns {
            margin-bottom: 24px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand i {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }
        .footer-desc {
            font-size: 13.5px;
            line-height: 1.8;
            margin-bottom: 16px;
            color: rgba(255, 255, 255, .6);
        }
        .footer-contact ul {
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            padding: 4px 0;
            color: rgba(255, 255, 255, .65);
        }
        .footer-contact li i {
            color: var(--accent);
            font-size: 13px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }
        .footer-links {
            margin: 0;
        }
        .footer-links li {
            padding: 5px 0;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .65);
            transition: all .25s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a::before {
            content: "\f105";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 11px;
            color: rgba(255, 255, 255, .4);
            transition: transform .25s ease;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 3px;
        }
        .footer-links a:hover::before {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .overview-grid {
                gap: 36px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
        }
        @media (max-width: 768px) {
            .header-top-inner {
                flex-wrap: wrap;
                min-height: 58px;
                padding: 10px 0;
            }
            .brand-area {
                flex: 1;
            }
            .brand-name {
                font-size: 18px;
            }
            .brand-tag {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .header-search {
                display: none;
            }
            .header-nav {
                position: fixed;
                top: 0;
                right: -320px;
                width: 300px;
                height: 100vh;
                background: var(--primary-dark);
                z-index: 1100;
                transition: right .35s ease;
                box-shadow: -8px 0 30px rgba(0, 0, 0, .18);
                border-radius: 20px 0 0 20px;
                overflow-y: auto;
            }
            .header-nav.open {
                right: 0;
            }
            .mobile-menu-close {
                display: flex;
                justify-content: flex-end;
                padding: 18px 18px 0;
            }
            .mobile-menu-close button {
                width: 38px;
                height: 38px;
                border: none;
                border-radius: 50%;
                background: rgba(255, 255, 255, .1);
                color: #fff;
                font-size: 16px;
                cursor: pointer;
                display: flex;
                align-items: center;
                justify-content: center;
                transition: background .25s ease;
            }
            .mobile-menu-close button:hover {
                background: rgba(255, 255, 255, .22);
            }
            .nav-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 20px;
                min-height: auto;
            }
            .nav-menu {
                flex-direction: column;
                width: 100%;
                gap: 2px;
            }
            .nav-menu a {
                padding: 13px 16px;
                width: 100%;
                border-radius: 10px;
                font-size: 15px;
            }
            .nav-cta {
                width: 100%;
                padding-top: 12px;
                border-top: 1px solid rgba(255, 255, 255, .1);
            }
            .nav-cta .btn {
                width: 100%;
                justify-content: center;
            }
            .section {
                padding: 48px 0;
            }
            .section-head h2 {
                font-size: 27px;
            }
            .page-banner {
                padding: 54px 0 60px;
            }
            .page-banner h1 {
                font-size: 29px;
            }
            .banner-desc {
                font-size: 15px;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .overview-image img {
                height: 260px;
            }
            .process-grid,
            .card-grid,
            .compare-grid,
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 27px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container,
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-head h2 {
                font-size: 23px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .banner-desc {
                font-size: 14px;
            }
            .btn {
                padding: 9px 18px;
                font-size: 13px;
            }
            .faq-item summary {
                padding: 16px 18px;
                font-size: 14.5px;
            }
            .faq-answer {
                padding: 0 18px 18px;
                font-size: 14px;
            }
        }

/* roulang page: article */
:root {
  --primary: #0A5E9E;
  --primary-dark: #074A7B;
  --primary-light: #EAF2FA;
  --accent: #00B8DA;
  --accent-soft: #E0F7FB;
  --success: #00C9A7;
  --bg-light: #F5F8FC;
  --bg-white: #FFFFFF;
  --text: #1E293B;
  --text-light: #64748B;
  --text-lighter: #94A3B8;
  --border: #E2E8F0;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(2, 32, 71, 0.06);
  --shadow: 0 6px 30px rgba(2, 32, 71, 0.08);
  --shadow-lg: 0 16px 48px rgba(2, 32, 71, 0.14);
  --transition: all .3s cubic-bezier(.4, 0, .2, 1);
  --section-space: 84px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button, input, textarea, select { font: inherit; border: none; outline: none; background: none; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-space) 0; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 48px; }
.section-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .83rem; font-weight: 700; letter-spacing: 2px;
  color: var(--primary); text-transform: uppercase;
  background: var(--primary-light); border-radius: 50px;
  padding: 6px 18px; margin-bottom: 14px;
}
.section-header h2 { font-size: 2rem; font-weight: 800; color: var(--text); line-height: 1.3; }
.section-header p { color: var(--text-light); margin-top: 10px; font-size: 1rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 34px; border-radius: 50px; font-size: .95rem; font-weight: 600;
  cursor: pointer; transition: var(--transition); border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(10, 94, 158, .35); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.85); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.15); transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #009fc0; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0, 184, 218, .35); }

.site-header { position: sticky; top: 0; z-index: 100; background: var(--bg-white); box-shadow: var(--shadow-sm); }
.header-top { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); color: #fff; }
.header-top-inner { display: flex; align-items: center; justify-content: space-between; min-height: 62px; gap: 16px; }
.brand-area { display: flex; align-items: center; gap: 10px; }
.brand-logo { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 40px; height: 40px; border-radius: 12px; background: rgba(255,255,255,.18);
  display: flex; align-items: center; justify-content: center; font-size: 1.15rem;
  border: 1px solid rgba(255,255,255,.3);
}
.brand-name { font-size: 1.35rem; font-weight: 800; color: #fff; letter-spacing: 1px; }
.brand-tag {
  font-size: .78rem; font-weight: 500; background: rgba(255,255,255,.18);
  padding: 4px 14px; border-radius: 50px; border: 1px solid rgba(255,255,255,.3); letter-spacing: 1px;
}
.mobile-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; background: rgba(255,255,255,.16); color: #fff; align-items: center; justify-content: center; font-size: 1.15rem; cursor: pointer; }
.header-search { flex: 0 1 340px; }
.search-wrap { display: flex; align-items: center; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.28); border-radius: 50px; padding: 4px 4px 4px 18px; transition: var(--transition); }
.search-wrap:focus-within { background: rgba(255,255,255,.25); }
.search-wrap input { flex: 1; background: transparent; color: #fff; font-size: .9rem; padding: 8px 0; min-width: 0; }
.search-wrap input::placeholder { color: rgba(255,255,255,.75); }
.search-wrap button { width: 36px; height: 36px; border-radius: 50%; background: #fff; color: var(--primary); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.search-wrap button:hover { transform: scale(1.06); }
.header-nav { background: var(--bg-white); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu li a { display: flex; align-items: center; gap: 8px; padding: 15px 22px; font-size: .95rem; font-weight: 500; color: var(--text); border-bottom: 3px solid transparent; transition: var(--transition); }
.nav-menu li a:hover { color: var(--primary); background: var(--primary-light); }
.nav-menu li.active a { color: var(--primary); border-bottom-color: var(--primary); background: var(--primary-light); }
.nav-cta .btn { padding: 10px 26px; font-size: .88rem; font-weight: 600; }
.mobile-menu-close { display: none; }

.page-hero {
  background: linear-gradient(135deg, rgba(10, 94, 158, .94), rgba(0, 184, 218, .86)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 58px 0 92px; color: #fff; position: relative;
}
.page-hero .hero-content { text-align: center; max-width: 820px; margin: 0 auto; }
.page-hero .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28); border-radius: 50px; padding: 6px 18px; font-size: .8rem; font-weight: 500; letter-spacing: 2px; margin-bottom: 18px; }
.page-hero h1 { font-size: 2.2rem; font-weight: 800; line-height: 1.35; letter-spacing: 2px; }
.page-hero .hero-sub { font-size: 1.05rem; opacity: .9; margin-top: 10px; }

.breadcrumb-wrap { background: transparent; margin-top: 20px; }
.breadcrumb { display: flex; align-items: center; justify-content: center; gap: 10px; font-size: .88rem; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255,255,255,.5); font-size: .7rem; }
.breadcrumb .current { color: rgba(255,255,255,.75); }

.article-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px; margin-top: -52px; padding-bottom: var(--section-space);
  position: relative; z-index: 2; align-items: start;
}
.article-main {
  background: var(--bg-white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 44px 48px; border: 1px solid var(--border);
}
.article-header { margin-bottom: 28px; }
.article-header .article-cat { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-light); color: var(--primary); font-size: .82rem; font-weight: 600; padding: 6px 16px; border-radius: 50px; margin-bottom: 16px; }
.article-title { font-size: 1.8rem; font-weight: 800; color: var(--text); line-height: 1.4; margin-bottom: 14px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 20px; color: var(--text-light); font-size: .88rem; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--primary); font-size: .82rem; }

.article-content { font-size: 1.0625rem; line-height: 1.85; color: var(--text); padding: 28px 0 10px; }
.article-content h2 { font-size: 1.5rem; font-weight: 700; margin: 2.2rem 0 1rem; padding-left: 16px; border-left: 4px solid var(--primary); line-height: 1.4; }
.article-content h3 { font-size: 1.25rem; font-weight: 700; margin: 1.8rem 0 .8rem; color: var(--text); }
.article-content p { margin-bottom: 1.25rem; }
.article-content img { border-radius: 14px; margin: 1.6rem auto; box-shadow: var(--shadow); }
.article-content ul, .article-content ol { margin: 1rem 0 1.5rem 1.5rem; }
.article-content ul li { list-style: disc; margin-bottom: .55rem; }
.article-content ol li { list-style: decimal; margin-bottom: .55rem; }
.article-content blockquote { border-left: 4px solid var(--accent); background: var(--accent-soft); padding: 16px 24px; border-radius: 0 14px 14px 0; margin: 1.6rem 0; color: var(--text-light); font-style: italic; }
.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--accent); }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.6rem 0; font-size: .95rem; }
.article-content table th, .article-content table td { padding: 12px 16px; border: 1px solid var(--border); }
.article-content table th { background: var(--primary-light); font-weight: 600; }
.article-content table tr:nth-child(even) td { background: var(--bg-light); }
.article-content code { background: var(--primary-light); padding: 2px 8px; border-radius: 6px; font-size: .9em; }
.article-content pre { background: #1E293B; color: #E2E8F0; padding: 20px; border-radius: 12px; overflow-x: auto; margin: 1.6rem 0; font-size: .9rem; line-height: 1.7; }

.article-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.article-tags .tag { display: inline-flex; align-items: center; gap: 5px; background: var(--bg-light); border: 1px solid var(--border); color: var(--text-light); font-size: .8rem; padding: 6px 14px; border-radius: 50px; }
.article-tags .tag i { color: var(--accent); }
.share-bar { display: flex; align-items: center; gap: 8px; }
.share-bar a { width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--bg-light); border: 1px solid var(--border); color: var(--text-light); font-size: .92rem; }
.share-bar a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

.not-found-card { text-align: center; padding: 40px 20px; }
.not-found-icon { width: 84px; height: 84px; border-radius: 50%; background: var(--primary-light); color: var(--primary); font-size: 2.2rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 24px; }
.not-found-card .article-title { margin: 16px 0 10px; }
.not-found-card p { color: var(--text-light); max-width: 400px; margin: 0 auto 26px; }
.not-found-card .btn { display: inline-flex; }

.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-widget { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border); padding: 26px 24px; }
.sidebar-widget .widget-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 18px; display: flex; align-items: center; gap: 10px; color: var(--text); }
.sidebar-widget .widget-title i { color: var(--primary); }
.widget-info-list li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: .88rem; color: var(--text-light); }
.widget-info-list li:last-child { border-bottom: none; }
.widget-info-list li i { width: 30px; height: 30px; border-radius: 8px; background: var(--primary-light); color: var(--primary); font-size: .75rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sidebar-news-list { display: flex; flex-direction: column; gap: 14px; }
.sidebar-news-link { display: flex; gap: 14px; align-items: flex-start; padding: 12px; border-radius: 12px; transition: var(--transition); background: var(--bg-light); }
.sidebar-news-link:hover { background: var(--primary-light); transform: translateX(4px); }
.sidebar-news-link .news-index { font-size: 1.2rem; font-weight: 800; color: var(--primary); opacity: .35; min-width: 28px; line-height: 1.2; }
.sidebar-news-link .news-title { font-size: .9rem; font-weight: 600; color: var(--text); line-height: 1.5; display: block; }
.sidebar-news-link .news-date { font-size: .78rem; color: var(--text-lighter); margin-top: 4px; display: block; }
.security-card { text-align: center; padding: 24px 18px; }
.security-card i { font-size: 2.4rem; color: var(--primary); margin-bottom: 14px; }
.security-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.security-card p { font-size: .88rem; color: var(--text-light); line-height: 1.6; }

.related-section { background: var(--bg-white); padding: var(--section-space) 0; border-top: 1px solid var(--border); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.related-card { background: var(--bg-light); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); display: flex; flex-direction: column; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.related-image { position: relative; padding-bottom: 62%; overflow: hidden; display: block; }
.related-image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-image img { transform: scale(1.06); }
.related-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.related-cat { font-size: .78rem; font-weight: 600; color: var(--primary); background: var(--primary-light); padding: 4px 12px; border-radius: 50px; display: inline-flex; align-items: center; gap: 5px; width: max-content; margin-bottom: 12px; }
.related-body h3 { font-size: 1.05rem; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.related-body h3 a { color: var(--text); }
.related-body h3 a:hover { color: var(--primary); }
.related-body p { font-size: .86rem; color: var(--text-light); line-height: 1.6; margin-bottom: 14px; flex: 1; }
.related-date { font-size: .8rem; color: var(--text-lighter); display: flex; align-items: center; gap: 6px; }
.related-date i { color: var(--accent); }
.empty-tip { text-align: center; padding: 40px; color: var(--text-lighter); font-size: .95rem; }

.categories-section { padding: var(--section-space) 0; background: var(--bg-light); }
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.category-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); display: flex; flex-direction: column; transition: var(--transition); }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card .cat-image { position: relative; padding-bottom: 54%; overflow: hidden; }
.category-card .cat-image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.category-card:hover .cat-image img { transform: scale(1.05); }
.category-card .cat-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(10, 94, 158, .4), transparent 60%); }
.category-card .cat-body { padding: 30px 32px; }
.category-card h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.category-card h3 i { color: var(--primary); }
.category-card p { color: var(--text-light); font-size: .92rem; line-height: 1.7; margin-bottom: 18px; }

.faq-section { padding: var(--section-space) 0; background: var(--bg-white); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--bg-light); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 28px; margin-bottom: 16px; transition: var(--transition); cursor: pointer; }
.faq-item:hover { background: var(--primary-light); box-shadow: var(--shadow-sm); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 1.05rem; font-weight: 600; color: var(--text); }
.faq-question i { color: var(--primary); transition: transform .3s ease; flex-shrink: 0; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease, margin .3s ease; color: var(--text-light); font-size: .92rem; line-height: 1.7; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-item.open .faq-answer { max-height: 400px; margin-top: 14px; }

.cta-section { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); color: #fff; text-align: center; padding: 80px 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: .12; }
.cta-inner { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.cta-inner h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cta-inner p { font-size: 1.05rem; opacity: .9; margin-bottom: 30px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: #0F172A; color: #94A3B8; padding: 64px 0 0; }
.site-footer .footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.25rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.site-footer .footer-brand i { color: var(--accent); }
.site-footer .footer-desc { font-size: .9rem; line-height: 1.8; margin-bottom: 18px; }
.site-footer .footer-contact ul li { display: flex; align-items: center; gap: 10px; font-size: .85rem; margin-bottom: 8px; }
.site-footer .footer-contact ul li i { color: var(--accent); width: 18px; }
.footer-title { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: .9rem; color: #94A3B8; display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); }
.footer-links a i { font-size: .65rem; color: var(--accent); }
.footer-links a:hover { color: #fff; padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 48px; padding: 22px 0; text-align: center; font-size: .84rem; color: #64748B; }
.footer-bottom p { margin-bottom: 4px; }
.footer-bottom a { color: var(--accent); }

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-top-inner { min-height: 56px; }
  .mobile-toggle { display: flex; }
  .header-search { display: none; }
  .brand-tag { display: none; }
  .brand-name { font-size: 1.15rem; }
  .header-nav { position: fixed; top: 0; right: -320px; width: 300px; height: 100vh; background: var(--bg-white); box-shadow: -6px 0 30px rgba(0,0,0,.12); z-index: 1000; transition: right .35s ease; overflow-y: auto; border-left: 1px solid var(--border); }
  .header-nav.open { right: 0; }
  .mobile-menu-close { display: flex; justify-content: flex-end; padding: 16px 20px 0; }
  .mobile-menu-close button { width: 40px; height: 40px; border-radius: 10px; background: var(--primary-light); color: var(--primary); cursor: pointer; display: flex; align-items: center; justify-content: center; }
  .nav-inner { flex-direction: column; align-items: stretch; padding: 0 20px 24px; }
  .nav-menu { flex-direction: column; gap: 4px; margin-top: 8px; }
  .nav-menu li a { border-radius: 10px; border-bottom: none; background: var(--bg-light); margin-bottom: 4px; }
  .nav-cta { margin-top: 18px; }
  .nav-cta .btn { width: 100%; justify-content: center; }
  .page-hero { padding: 44px 0 72px; }
  .page-hero h1 { font-size: 1.6rem; }
  .article-main { padding: 24px 22px; }
  .article-title { font-size: 1.4rem; }
  .article-sidebar { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .faq-item { padding: 18px 20px; }
  .section-header h2 { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-top-inner { gap: 8px; }
  .brand-icon { width: 34px; height: 34px; font-size: .95rem; }
  .brand-name { font-size: 1rem; }
  .page-hero h1 { font-size: 1.25rem; }
  .page-hero .hero-sub { font-size: .9rem; }
  .article-meta { gap: 12px; }
  .article-footer { flex-direction: column; align-items: flex-start; }
  .share-bar { align-self: flex-end; }
  .cta-inner h2 { font-size: 1.5rem; }
  .cta-buttons .btn { width: 100%; }
  .footer-bottom { font-size: .78rem; }
}

/* roulang page: category2 */
:root{
  --primary:#0f766e;
  --primary-dark:#115e59;
  --primary-light:#99f6e4;
  --accent:#f59e0b;
  --accent-light:#fef3c7;
  --dark:#0f172a;
  --bg:#f8fafc;
  --white:#ffffff;
  --text:#1e293b;
  --text-light:#64748b;
  --border:#e2e8f0;
  --shadow:0 4px 24px rgba(15,23,42,.08);
  --shadow-lg:0 12px 36px rgba(15,23,42,.12);
  --radius:16px;
  --radius-sm:10px;
  --transition:all .3s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.site-header{
  background:var(--white);
  box-shadow:0 2px 20px rgba(15,23,42,.06);
  position:sticky;
  top:0;
  z-index:200;
}
.header-top{
  border-bottom:1px solid var(--border);
  background:var(--white);
}
.header-top-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:20px;
}
.brand-area{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:8px;
}
.brand-icon{
  width:40px;
  height:40px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:18px;
  box-shadow:0 4px 12px rgba(15,118,110,.35);
}
.brand-name{
  font-size:22px;
  font-weight:800;
  color:var(--dark);
  letter-spacing:.5px;
}
.brand-tag{
  background:var(--accent-light);
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  padding:4px 14px;
  border-radius:20px;
  border:1px solid rgba(245,158,11,.25);
  white-space:nowrap;
}
.mobile-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  font-size:18px;
  color:var(--text);
  background:var(--white);
}
.header-search{
  flex:1;
  max-width:380px;
}
.search-wrap{
  display:flex;
  align-items:center;
  background:var(--bg);
  border:2px solid var(--border);
  border-radius:50px;
  padding:0 6px 0 18px;
  transition:var(--transition);
}
.search-wrap:focus-within{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(15,118,110,.12);
}
.search-wrap input{
  border:none;
  background:transparent;
  padding:10px 0;
  outline:none;
  flex:1;
  font-size:14px;
  color:var(--text);
}
.search-wrap button{
  width:34px;
  height:34px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  border:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.search-wrap button:hover{background:var(--primary-dark)}
.header-nav{
  background:var(--white);
  border-top:1px solid var(--border);
}
.mobile-menu-close{
  display:none;
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:56px;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:wrap;
}
.nav-menu li{
  margin:0;
}
.nav-menu a{
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-radius:10px;
  position:relative;
  transition:var(--transition);
}
.nav-menu a i{
  font-size:14px;
  color:var(--text-light);
  transition:var(--transition);
}
.nav-menu a:hover{
  color:var(--primary);
  background:rgba(15,118,110,.06);
}
.nav-menu a:hover i{
  color:var(--primary);
}
.nav-menu li.active a{
  color:var(--primary);
  font-weight:700;
  background:rgba(15,118,110,.1);
}
.nav-menu li.active a i{
  color:var(--primary);
}
.nav-menu li.active a::after{
  content:'';
  position:absolute;
  bottom:-2px;
  left:20px;
  right:20px;
  height:3px;
  background:var(--primary);
  border-radius:3px 3px 0 0;
}
.nav-cta{
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 28px;
  border-radius:50px;
  font-size:15px;
  font-weight:600;
  border:none;
  cursor:pointer;
  transition:var(--transition);
  gap:8px;
  line-height:1.4;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  box-shadow:0 4px 14px rgba(15,118,110,.3);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(15,118,110,.4);
  color:#fff;
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border:2px solid var(--primary);
}
.btn-outline:hover{
  background:var(--primary);
  color:#fff;
}
.btn-light{
  background:#fff;
  color:var(--primary);
  box-shadow:0 4px 14px rgba(0,0,0,.12);
}
.btn-light:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(0,0,0,.18);
  color:var(--primary-dark);
}
.btn-lg{
  padding:16px 38px;
  font-size:17px;
}

/* Banner */
.banner{
  position:relative;
  padding:80px 0;
  background:linear-gradient(135deg,rgba(15,23,42,.92),rgba(15,118,110,.75)),url('/assets/images/backpic/back-2.png') center/cover fixed;
  color:#fff;
}
.banner-inner{
  position:relative;
  z-index:2;
  max-width:760px;
}
.banner-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.15);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.25);
  padding:8px 20px;
  border-radius:50px;
  font-size:14px;
  font-weight:500;
  margin-bottom:20px;
}
.banner-badge i{
  color:var(--accent);
}
.banner h1{
  font-size:42px;
  line-height:1.3;
  font-weight:800;
  margin-bottom:18px;
  letter-spacing:1px;
}
.banner p{
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.88);
  margin-bottom:30px;
}
.banner-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.75);
  margin-bottom:16px;
  flex-wrap:wrap;
}
.breadcrumb a{
  color:rgba(255,255,255,.75);
}
.breadcrumb a:hover{
  color:#fff;
}
.breadcrumb .fa-angle-right{
  font-size:12px;
}

/* Security Section Layout */
.section-padding{
  padding:80px 0;
}
.section-title-wrap{
  margin-bottom:40px;
}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  background:rgba(15,118,110,.08);
  padding:6px 16px;
  border-radius:20px;
  margin-bottom:14px;
}
.section-title{
  font-size:34px;
  font-weight:800;
  color:var(--dark);
  line-height:1.3;
  margin-bottom:12px;
}
.section-sub{
  font-size:16px;
  color:var(--text-light);
  max-width:640px;
  line-height:1.8;
}
.text-center .section-sub{
  margin-left:auto;
  margin-right:auto;
}

/* Security Cards */
.security-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.security-card{
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:32px 28px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.security-card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;
  transition:var(--transition);
}
.security-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(15,118,110,.25);
}
.security-card:hover::before{
  opacity:1;
}
.security-card-icon{
  width:56px;
  height:56px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  margin-bottom:20px;
  background:rgba(15,118,110,.1);
  color:var(--primary);
}
.security-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--dark);
  margin-bottom:12px;
}
.security-card p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.8;
  margin-bottom:16px;
}
.card-tag{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:12px;
  font-weight:600;
  color:var(--primary);
  background:rgba(15,118,110,.08);
  padding:3px 12px;
  border-radius:20px;
}
.card-tag .fa{
  font-size:11px;
}

/* Security Alert Section */
.alert-section{
  background:var(--dark);
  position:relative;
  overflow:hidden;
}
.alert-section .backdrop-text{
  position:absolute;
  right:-20px;
  bottom:-40px;
  font-size:160px;
  font-weight:900;
  color:rgba(255,255,255,.03);
  line-height:1;
  pointer-events:none;
}
.alert-inner{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:60px;
  align-items:center;
}
.alert-content h2{
  font-size:32px;
  font-weight:800;
  color:#fff;
  line-height:1.4;
  margin-bottom:20px;
}
.alert-content p{
  color:rgba(255,255,255,.75);
  font-size:16px;
  line-height:1.9;
  margin-bottom:24px;
}
.alert-list{
  margin-top:10px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.alert-list li{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  font-size:15px;
  font-weight:500;
}
.alert-list li i{
  color:var(--accent);
  font-size:16px;
}
.alert-visual{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:20px;
  padding:32px;
  backdrop-filter:blur(10px);
}
.alert-visual-title{
  color:#fff;
  font-size:18px;
  font-weight:700;
  margin-bottom:24px;
  display:flex;
  align-items:center;
  gap:10px;
}
.alert-visual-title i{
  color:var(--accent);
}
.status-item{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.status-item:last-child{
  border-bottom:none;
}
.status-dot{
  width:10px;
  height:10px;
  border-radius:50%;
  margin-top:8px;
  flex-shrink:0;
}
.status-dot.green{background:#22c55e;box-shadow:0 0 10px rgba(34,197,94,.6)}
.status-dot.yellow{background:var(--accent);box-shadow:0 0 10px rgba(245,158,11,.6)}
.status-dot.red{background:#ef4444;box-shadow:0 0 10px rgba(239,68,68,.6)}
.status-item p{
  color:rgba(255,255,255,.9);
  font-size:14px;
  margin:0;
}
.status-item span{
  display:block;
  color:rgba(255,255,255,.5);
  font-size:12px;
  margin-top:4px;
}

/* Verification steps */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  counter-reset:step;
}
.step-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:30px 24px;
  text-align:center;
  position:relative;
  transition:var(--transition);
}
.step-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow);
}
.step-num{
  position:relative;
  width:60px;
  height:60px;
  margin:0 auto 18px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:22px;
  font-weight:800;
  box-shadow:0 6px 16px rgba(15,118,110,.35);
}
.step-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--dark);
  margin-bottom:10px;
}
.step-card p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.7;
}

/* Comparison */
.compare-section{
  background:var(--white);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:30px;
}
.compare-card{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  transition:var(--transition);
}
.compare-card:hover{
  box-shadow:var(--shadow-lg);
}
.compare-header{
  padding:24px 28px;
  display:flex;
  align-items:center;
  gap:16px;
}
.compare-header.danger{
  background:rgba(239,68,68,.06);
  border-bottom:1px solid rgba(239,68,68,.12);
}
.compare-header.safe{
  background:rgba(34,197,94,.06);
  border-bottom:1px solid rgba(34,197,94,.12);
}
.compare-icon{
  width:48px;
  height:48px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
}
.compare-header.danger .compare-icon{
  background:rgba(239,68,68,.12);
  color:#ef4444;
}
.compare-header.safe .compare-icon{
  background:rgba(34,197,94,.12);
  color:#22c55e;
}
.compare-header h3{
  font-size:20px;
  font-weight:700;
  color:var(--dark);
  margin:0;
}
.compare-list{
  padding:24px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.compare-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15px;
  color:var(--text);
  line-height:1.6;
}
.compare-list li i{
  margin-top:5px;
  font-size:14px;
}
.compare-list li.unsecure i{
  color:#ef4444;
}
.compare-list li.secure i{
  color:#22c55e;
}

/* Tips */
.tips-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.tip-card{
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--border);
  overflow:hidden;
  transition:var(--transition);
}
.tip-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
}
.tip-card iframe,.tip-card .tip-img{
  width:100%;
  height:200px;
  object-fit:cover;
}
.tip-body{
  padding:24px;
}
.tip-badge{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:12px;
  font-weight:600;
  background:var(--accent-light);
  color:var(--accent);
  padding:4px 12px;
  border-radius:20px;
  margin-bottom:12px;
}
.tip-body h3{
  font-size:18px;
  font-weight:700;
  color:var(--dark);
  margin-bottom:10px;
  line-height:1.5;
}
.tip-body p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.8;
}

/* FAQ */
.faq-section{
  background:var(--bg);
}
.faq-list{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(15,118,110,.25);
  box-shadow:var(--shadow);
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 24px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--dark);
  transition:var(--transition);
}
.faq-question i{
  color:var(--primary);
  transition:var(--transition);
  font-size:16px;
}
.faq-item.active .faq-question{
  color:var(--primary);
}
.faq-item.active .faq-question i{
  transform:rotate(180deg);
}
.faq-answer{
  padding:0 24px;
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease, padding .4s ease;
}
.faq-item.active .faq-answer{
  max-height:500px;
  padding:0 24px 20px;
}
.faq-answer p{
  font-size:15px;
  color:var(--text-light);
  line-height:1.9;
  margin:0;
}

/* CTA */
.cta-section{
  position:relative;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  padding:70px 0;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  top:-40px;
  right:-40px;
  width:200px;
  height:200px;
  border-radius:50%;
  background:rgba(255,255,255,.05);
}
.cta-section::after{
  content:'';
  position:absolute;
  bottom:-60px;
  left:20%;
  width:160px;
  height:160px;
  border-radius:50%;
  background:rgba(255,255,255,.04);
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:640px;
  margin:0 auto;
}
.cta-inner h2{
  color:#fff;
  font-size:34px;
  font-weight:800;
  margin-bottom:16px;
}
.cta-inner p{
  color:rgba(255,255,255,.85);
  font-size:16px;
  line-height:1.8;
  margin-bottom:30px;
}
.cta-buttons{
  display:flex;
  gap:14px;
  justify-content:center;
  flex-wrap:wrap;
}

/* Footer */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.7);
  padding:70px 0 0;
}
.site-footer .row{
  max-width:1200px;
  margin:0 auto;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  font-size:22px;
  font-weight:800;
  margin-bottom:18px;
}
.footer-brand i{
  width:40px;
  height:40px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  color:#fff;
}
.footer-desc{
  font-size:14px;
  line-height:1.9;
  margin-bottom:20px;
  color:rgba(255,255,255,.6);
}
.footer-contact ul li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.6);
  margin-bottom:8px;
}
.footer-contact ul li i{
  width:20px;
  color:var(--primary-light);
}
.footer-title{
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:20px;
  position:relative;
  padding-bottom:10px;
}
.footer-title::after{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:36px;
  height:3px;
  background:var(--primary);
  border-radius:3px;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.6);
  transition:var(--transition);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-links a::before{
  content:'›';
  color:var(--primary-light);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:50px;
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
}
.footer-bottom p{
  font-size:13px;
  color:rgba(255,255,255,.45);
  margin:0;
}
.footer-bottom a{
  color:rgba(255,255,255,.45);
}
.footer-bottom a:hover{
  color:#fff;
}

/* Foundation overrides */
.columns{
  margin-bottom:30px;
}
.row .row{
  margin:0;
}

/* Responsive */
@media(max-width:1024px){
  .security-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .steps-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .tips-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .header-search{
    max-width:280px;
  }
}
@media(max-width:768px){
  .header-top-inner{
    flex-wrap:wrap;
    padding:12px 0;
  }
  .mobile-toggle{
    display:flex;
    order:3;
  }
  .header-search{
    order:4;
    width:100%;
    max-width:100%;
    margin-top:10px;
  }
  .brand-area{
    flex:1;
  }
  .brand-tag{
    display:none;
  }
  .mobile-menu-close{
    display:block;
    position:absolute;
    top:16px;
    right:16px;
    z-index:10;
  }
  .mobile-menu-close button{
    width:38px;
    height:38px;
    border-radius:10px;
    border:1px solid var(--border);
    background:var(--white);
    color:var(--text);
    cursor:pointer;
    font-size:16px;
  }
  .header-nav{
    position:fixed;
    top:0;
    right:-100%;
    width:320px;
    height:100%;
    background:#fff;
    z-index:300;
    box-shadow:-8px 0 40px rgba(0,0,0,.15);
    transition:var(--transition);
    border-top:none;
  }
  .header-nav.open{
    right:0;
  }
  .header-nav::before{
    content:'';
    position:fixed;
    top:0;
    left:0;
    width:100vw;
    height:100%;
    background:rgba(15,23,42,.5);
    opacity:0;
    pointer-events:none;
    transition:opacity .3s;
    z-index:-1;
  }
  .header-nav.open::before{
    opacity:1;
    pointer-events:auto;
  }
  .nav-inner{
    flex-direction:column;
    align-items:flex-start;
    padding:70px 24px 24px;
    height:100%;
    overflow-y:auto;
  }
  .nav-menu{
    flex-direction:column;
    align-items:flex-start;
    width:100%;
    gap:4px;
  }
  .nav-menu li{
    width:100%;
  }
  .nav-menu a{
    width:100%;
    padding:14px 16px;
    font-size:16px;
  }
  .nav-menu li.active a::after{
    display:none;
  }
  .nav-cta{
    width:100%;
    margin-top:20px;
  }
  .nav-cta .btn{
    width:100%;
  }
  .banner{
    padding:60px 0;
    background-attachment:scroll;
  }
  .banner h1{
    font-size:30px;
  }
  .alert-inner{
    grid-template-columns:1fr;
    gap:40px;
  }
  .compare-grid{
    grid-template-columns:1fr;
  }
  .section-padding{
    padding:60px 0;
  }
  .section-title{
    font-size:26px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
  .cta-inner h2{
    font-size:28px;
  }
}
@media(max-width:520px){
  .security-grid{
    grid-template-columns:1fr;
  }
  .steps-grid{
    grid-template-columns:1fr;
  }
  .tips-grid{
    grid-template-columns:1fr;
  }
  .brand-name{
    font-size:18px;
  }
  .banner-actions .btn{
    width:100%;
  }
  .cta-buttons .btn{
    width:100%;
  }
  .compare-list{
    padding:20px;
  }
  .alert-visual{
    padding:20px;
  }
}