/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #2F6FED;
  --primary-dark: #2256C4;
  --primary-light: #F0F6FF;
  --accent: #F5A623;
  --success: #16A085;
  --text-main: #1F2A3A;
  --text-secondary: #5B6B7F;
  --text-weak: #8A97A8;
  --border: #E3E9F2;
  --bg-body: #F4F8FC;
  --bg-white: #FFFFFF;
  --card-shadow: 0 6px 20px rgba(47, 111, 237, 0.08);
  --card-shadow-hover: 0 12px 28px rgba(47, 111, 237, 0.12);
  --radius-card: 14px;
  --radius-btn: 8px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Inter", sans-serif;
  --transition: all 0.2s ease;
  --container-max: 1200px;
  --section-gap: 90px;
}

/* ========== Reset / Base ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background-color: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  word-break: break-word;
}

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

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: var(--font-main);
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-main);
  font-size: 15px;
}

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

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-header h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-main);
  letter-spacing: 0.5px;
}

.section-header p {
  margin-top: 16px;
  font-size: 16px;
  color: var(--text-secondary);
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 26px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-main);
  border-radius: var(--radius-btn);
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--primary);
  color: #FFFFFF;
  border: 1px solid var(--primary);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(47, 111, 237, 0.25);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}

.btn-primary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

.btn-secondary:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-secondary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn-accent {
  background-color: var(--accent);
  color: #1F2A3A;
  border: 1px solid var(--accent);
}

.btn-accent:hover {
  background-color: #E09A1A;
  border-color: #E09A1A;
  color: #1F2A3A;
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(245, 166, 35, 0.3);
}

.btn-full {
  width: 100%;
}

/* ========== 导航栏 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

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

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), #4A86F0);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.2px;
  line-height: 1.3;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  transition: var(--transition);
}

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

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

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(47, 111, 237, 0.25);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

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

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

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

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 85vw;
  background: var(--bg-white);
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.08);
  padding: 40px 32px;
  z-index: 1100;
  overflow-y: auto;
}

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

.mobile-menu-close {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 26px;
  line-height: 1;
  color: var(--text-secondary);
  cursor: pointer;
  background: none;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.mobile-menu-close:hover {
  background: var(--bg-body);
  color: var(--text-main);
}

.mobile-menu a {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--primary);
  padding-left: 8px;
}

.mobile-menu .nav-cta {
  margin-top: 24px;
  width: 100%;
  height: 46px;
}

.overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(31, 42, 58, 0.5);
  z-index: 1050;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.overlay.show {
  opacity: 1;
}

/* ========== Hero 首屏 ========== */
.hero {
  position: relative;
  background: var(--bg-body);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -260px;
  right: -180px;
  width: 580px;
  height: 580px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 111, 237, 0.12), transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 48px;
  padding: 80px 0 100px;
  min-height: calc(100vh - 72px);
}

.hero-content {
  flex: 1;
  max-width: 580px;
}

.hero-content .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid rgba(47, 111, 237, 0.15);
  margin-bottom: 24px;
}

.hero-content .hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: -0.3px;
}

.hero h1 .underline {
  position: relative;
  color: var(--primary);
}

.hero h1 .underline::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(245, 166, 35, 0.35);
  border-radius: 4px;
  z-index: -1;
}

.hero-sub {
  margin-top: 24px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-weak);
}

.hero-trust .trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-trust .trust-item .icon {
  color: var(--success);
}

.hero-image {
  flex: 1;
  max-width: 520px;
  position: relative;
}

.hero-image .image-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border);
}

.hero-image .image-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hero-image .image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(31, 42, 58, 0.6));
  pointer-events: none;
}

.hero-image .image-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  border-radius: 12px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-image .image-badge .dot-green {
  width: 10px;
  height: 10px;
  background: var(--success);
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(22, 160, 133, 0.15);
}

.hero-image .image-badge .badge-text {
  font-size: 14px;
  font-weight: 600;
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  line-height: 0;
}

.hero-wave svg {
  display: block;
  width: 100%;
  height: 60px;
}

/* ========== 方案卡片区（痛点问答对） ========== */
.solution {
  background: var(--bg-white);
  padding: var(--section-gap) 0;
}

.solution .container {
  max-width: 1000px;
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.solution-item {
  display: flex;
  align-items: stretch;
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}

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

.solution-index {
  position: relative;
  width: 110px;
  background: linear-gradient(135deg, var(--primary), #4A86F0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.95);
  flex-shrink: 0;
}

.solution-index::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 0;
  transition: height 0.3s ease;
}

.solution-item:hover .solution-index::after {
  height: 100%;
}

.solution-body {
  padding: 28px 32px;
  flex: 1;
}

.solution-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.5;
}

.solution-body p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

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

.solution-link .arrow {
  transition: transform 0.2s ease;
}

.solution-link:hover .arrow {
  transform: translateX(3px);
}

/* ========== 数据板块 ========== */
.stats {
  background: linear-gradient(135deg, #F0F6FF, #E8F1FE);
  padding: 70px 0;
}

.stats .section-header h2 {
  color: var(--text-main);
}

.stats-bar {
  display: flex;
  background: var(--bg-white);
  border-radius: var(--radius-card);
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border);
  overflow: hidden;
  margin-top: 20px;
}

.stat-item {
  flex: 1;
  padding: 36px 24px;
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 48px;
  background: var(--border);
}

.stat-number {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.stat-number .online-dot {
  width: 10px;
  height: 10px;
  background: var(--success);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s infinite;
}

.stat-label {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ========== 最新资讯列表 ========== */
.news {
  padding: var(--section-gap) 0;
  background: var(--bg-body);
}

.news .container {
  max-width: 960px;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.news-item:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
  border-color: rgba(47, 111, 237, 0.3);
}

.news-item-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 10px;
}

.news-item-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  flex: 1;
  min-width: 0;
}

.news-item-title a {
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item-title a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 30px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(47, 111, 237, 0.15);
  white-space: nowrap;
  flex-shrink: 0;
}

.news-item-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.news-item-summary {
  font-size: 14px;
  color: var(--text-secondary);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-item-meta {
  font-size: 13px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.news-item-meta .time {
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-card);
}

.news-empty .empty-icon {
  font-size: 30px;
  color: var(--border);
  margin-bottom: 12px;
  line-height: 1;
}

.news-empty p {
  font-size: 15px;
  color: var(--text-weak);
}

/* ========== FAQ ========== */
.faq {
  background: var(--bg-white);
  padding: var(--section-gap) 0;
}

.faq .container {
  max-width: 900px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: rgba(47, 111, 237, 0.3);
  box-shadow: var(--card-shadow);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
  background: none;
  width: 100%;
  text-align: left;
  line-height: 1.5;
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: var(--transition);
  background: var(--bg-body);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid transparent;
}

.faq-item.active .faq-answer-inner {
  border-top-color: var(--border);
  padding-top: 16px;
}

/* ========== CTA 区 ========== */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, var(--primary-light), #E8F1FE);
  padding: 80px 0;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.08);
}

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

.cta-inner h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
}

.cta-inner p {
  margin-top: 16px;
  font-size: 16px;
  color: var(--text-secondary);
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.cta-note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* ========== 表单弹层 ========== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(31, 42, 58, 0.6);
  z-index: 2000;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
}

.modal-overlay.show {
  display: flex;
}

.modal-card {
  background: var(--bg-white);
  border-radius: 18px;
  width: 420px;
  max-width: 92vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(31, 42, 58, 0.2);
  transform: translateY(12px);
  transition: transform 0.3s ease;
}

.modal-overlay.show .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px 0;
}

.modal-header h3 {
  font-size: 19px;
  font-weight: 700;
}

.modal-close {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--bg-body);
  color: var(--text-secondary);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--border);
  color: var(--text-main);
}

.modal-body {
  padding: 20px 28px 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  background: var(--bg-white);
  transition: var(--transition);
  color: var(--text-main);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.modal-submit {
  margin-top: 6px;
}

.modal-privacy {
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-weak);
  line-height: 1.6;
  text-align: center;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-white);
  border-top: 1px solid var(--border);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 340px;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
}

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

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-weak);
}

.footer-copy span {
  font-family: var(--font-num);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-inner {
    padding: 60px 0 80px;
    min-height: auto;
  }
  .hero h1 {
    font-size: 32px;
  }
  .hero-image {
    max-width: 420px;
  }
  .hero-image .image-wrap img {
    height: 320px;
  }
  .stats-bar {
    flex-wrap: wrap;
  }
  .stat-item {
    flex: 1 1 45%;
    padding: 28px 16px;
  }
  .stat-item:nth-child(2)::after {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap: 60px;
  }
  
  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .header-right .nav-cta {
    display: none;
  }

  .mobile-menu {
    display: block;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }

  .mobile-menu.open {
    transform: translateX(0);
  }

  .hero-inner {
    flex-direction: column;
    padding: 40px 0 60px;
    gap: 32px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero h1 {
    font-size: 26px;
    line-height: 1.35;
  }

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

  .hero-image {
    max-width: 100%;
  }

  .hero-image .image-wrap img {
    height: 260px;
  }

  .hero-wave svg {
    height: 36px;
  }

  .solution-item {
    flex-direction: column;
  }

  .solution-index {
    width: 100%;
    height: 46px;
    font-size: 18px;
  }

  .solution-body {
    padding: 20px;
  }

  .stats-bar {
    flex-direction: column;
  }

  .stat-item:not(:last-child)::after {
    right: 50%;
    top: auto;
    bottom: 0;
    width: 40px;
    height: 1px;
    transform: translateX(50%);
    position: absolute;
  }

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

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

  .news-item-bottom {
    flex-wrap: wrap;
  }

  .news-item-summary {
    width: 100%;
  }

  .news-item-meta {
    width: 100%;
    justify-content: flex-start;
    gap: 8px;
  }

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

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

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

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

  .section-header h2 {
    font-size: 22px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

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

  .hero-trust {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

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

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

  .news-item-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .moda-card {
    border-radius: 14px;
  }
}

/* ========== 滚动条美化 ========== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-body);
}

::-webkit-scrollbar-thumb {
  background: #C5CEDD;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* roulang page: article */
:root {
  --primary: #2F6FED;
  --primary-dark: #2256C4;
  --accent: #F5A623;
  --bg: #F4F8FC;
  --white: #FFFFFF;
  --text: #1F2A3A;
  --text-secondary: #5B6B7F;
  --text-muted: #8A97A8;
  --border: #E3E9F2;
  --shadow: 0 6px 20px rgba(47,111,237,0.08);
  --shadow-hover: 0 12px 28px rgba(47,111,237,0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --transition: all 0.2s ease;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button,
input,
textarea {
  font-family: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}
.logo-text {
  font-weight: 700;
  font-size: 18px;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.main-nav a:hover {
  color: var(--primary);
}
.main-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  padding: 0 8px;
}
.nav-toggle span {
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-cta {
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-sm);
  height: 42px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-outline:hover {
  border-color: var(--primary-dark);
  background: rgba(47, 111, 237, 0.08);
}
.link-btn {
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
}
.link-btn:hover {
  text-decoration: underline;
}

/* Breadcrumb */
.breadcrumb-wrap {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--primary);
}
.breadcrumb .current {
  max-width: 600px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Article */
.article-page {
  padding: 48px 0 24px;
}
.article-container {
  max-width: 920px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px;
  box-shadow: var(--shadow);
}
.article-header {
  text-align: center;
  margin-bottom: 32px;
}
.article-category {
  display: inline-block;
  background: rgba(47, 111, 237, 0.1);
  color: var(--primary);
  border-radius: 20px;
  padding: 4px 16px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.article-header h1 {
  font-size: 34px;
  line-height: 1.4;
  margin-bottom: 16px;
  font-weight: 700;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 13px;
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}
.article-body h2 {
  font-size: 26px;
  margin: 40px 0 16px;
  line-height: 1.4;
}
.article-body h3 {
  font-size: 20px;
  margin: 28px 0 12px;
}
.article-body p {
  margin-bottom: 20px;
}
.article-body ul,
.article-body ol {
  margin: 16px 0 20px;
  padding-left: 24px;
}
.article-body li {
  margin-bottom: 8px;
}
.article-body blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}
.article-body img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 24px 0;
}
.article-body a {
  color: var(--primary);
  text-decoration: underline;
}
.not-found {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}
.not-found p {
  font-size: 18px;
  margin-bottom: 20px;
}

/* Related */
.related-section {
  padding: 64px 0 40px;
}
.section-title {
  text-align: center;
  font-size: 28px;
  margin-bottom: 32px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: block;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.related-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg);
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-info {
  padding: 16px 20px 20px;
}
.related-info h3 {
  font-size: 17px;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--text);
  transition: color 0.2s;
}
.related-card:hover .related-info h3 {
  color: var(--primary);
}
.related-info time {
  font-size: 12px;
  color: var(--text-muted);
}
.related-actions {
  text-align: center;
  margin-top: 28px;
}

/* CTA */
.article-cta {
  padding: 56px 0 72px;
}
.cta-inner {
  background: linear-gradient(135deg, #F0F6FF, #E8F1FE);
  border-radius: 20px;
  padding: 48px 32px;
  text-align: center;
}
.cta-inner h2 {
  font-size: 28px;
  margin-bottom: 12px;
}
.cta-inner p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* Footer */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-brand .logo {
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 380px;
  margin-top: 12px;
}
.footer-title {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--text);
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 8px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-copy span {
  color: var(--text);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
  .main-nav {
    gap: 20px;
  }
  .article-container {
    padding: 32px 24px;
  }
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 300px;
    background: #fff;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 32px;
    gap: 24px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .main-nav.open {
    transform: translateX(0);
  }
  .main-nav a {
    font-size: 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
  .article-page {
    padding: 24px 0;
  }
  .article-container {
    padding: 28px 18px;
    border-radius: 14px;
  }
  .article-header h1 {
    font-size: 28px;
  }
  .article-body {
    font-size: 15px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cta-inner {
    padding: 32px 20px;
  }
}
@media (max-width: 520px) {
  .logo-text {
    font-size: 16px;
  }
  .article-header h1 {
    font-size: 26px;
  }
  .article-meta {
    flex-direction: column;
    gap: 4px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #2F6FED;
  --primary-dark: #2256C4;
  --primary-light: #EAF1FE;
  --accent: #F5A623;
  --success: #16A085;
  --text: #1F2A3A;
  --text-secondary: #5B6B7F;
  --text-muted: #8A97A8;
  --bg: #F4F8FC;
  --white: #FFFFFF;
  --border: #E3E9F2;
  --radius: 14px;
  --shadow: 0 6px 20px rgba(47, 111, 237, 0.08);
  --shadow-hover: 0 12px 28px rgba(47, 111, 237, 0.12);
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-number: "DIN Alternate", "Inter", sans-serif;
  --transition: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), #3D7BF4);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(47, 111, 237, 0.2);
}

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

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a:not(.nav-cta) {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 2px;
  transition: var(--transition);
}

.main-nav a:not(.nav-cta):hover {
  color: var(--primary);
}

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

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 8px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: var(--transition);
}

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

.nav-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-cta {
  display: none;
  margin-top: 28px;
}

.page-hero {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 96px 0;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255, 255, 255, 0.97) 16%, rgba(244, 248, 252, 0.86) 52%, rgba(47, 111, 237, 0.2));
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow);
  margin-bottom: 22px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}

.page-hero h1 {
  font-size: 40px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
}

.page-hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

.section {
  padding: 90px 0;
}

.section-white {
  background: var(--white);
}

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

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 680px;
  margin: 0 auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.step-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 32px 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  overflow: hidden;
}

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

.step-num {
  position: absolute;
  top: 18px;
  right: 24px;
  font-family: var(--font-number);
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  color: rgba(47, 111, 237, 0.1);
  font-variant-numeric: tabular-nums;
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 20px;
  font-family: var(--font-number);
  font-variant-numeric: tabular-nums;
}

.step-card h3 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-secondary);
  font-size: 15px;
}

.issues-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.issue-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: var(--transition);
}

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

.issue-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

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

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

.device-wrap {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 60px;
  align-items: center;
}

.device-img {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 100%;
  min-height: 300px;
}

.device-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.device-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 24px;
  transition: var(--transition);
}

.device-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.device-item .device-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

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

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

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

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

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}

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

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  line-height: 1;
  transition: var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  transition: max-height 0.25s ease, padding 0.25s ease;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 22px;
}

.section-cta {
  background: linear-gradient(135deg, #F0F6FF, #E8F1FE);
  border-top: 1px solid var(--border);
}

.cta-box {
  text-align: center;
  padding: 40px 0;
}

.cta-box h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}

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

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

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

.cta-note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--white);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 340px;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .main-nav {
    gap: 22px;
  }

  .device-wrap {
    gap: 40px;
  }
}

@media (max-width: 992px) {
  .header-inner {
    height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    height: 100vh;
    background: var(--white);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.08);
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 80px 32px 32px;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
  }

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

  .main-nav a:not(.nav-cta) {
    font-size: 17px;
    padding: 12px 0;
  }

  .main-nav a.active::after {
    left: 0;
    right: auto;
    width: 32px;
  }

  .header-right .nav-cta {
    display: none;
  }

  .mobile-cta {
    display: inline-flex;
    margin-top: 28px;
    width: 100%;
  }

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

@media (max-width: 768px) {
  .page-hero {
    padding: 64px 0;
  }

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

  .page-hero p {
    font-size: 16px;
  }

  .section {
    padding: 60px 0;
  }

  .section-head {
    margin-bottom: 32px;
  }

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

  .steps-grid,
  .issues-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .device-img {
    min-height: 220px;
  }

  .cta-box h2 {
    font-size: 24px;
  }

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

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

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

  .logo-icon {
    width: 34px;
    height: 34px;
  }

  .main-nav {
    width: 100%;
  }

  .page-hero {
    padding: 48px 0;
  }

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

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

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

  .issue-item,
  .device-item {
    padding: 18px;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 15px;
  }

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

  .faq-item.open .faq-answer {
    padding: 0 18px 18px;
  }

  .btn {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
  --primary: #2F6FED;
  --primary-dark: #2256C4;
  --accent: #F5A623;
  --deep: #22303C;
  --ink: #1F2A3A;
  --muted: #5B6B7F;
  --weak: #8A97A8;
  --bg: #F4F1E9;
  --card: #FFFBF2;
  --line: #E3DCC9;
  --line-strong: #1F2A3A;
  --shadow-sm: 3px 3px 0 rgba(31,42,58,0.08);
  --shadow-md: 6px 6px 0 rgba(31,42,58,0.10);
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Inter", "PingFang SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

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

.section {
  padding: 90px 0;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(47, 111, 237, 0.08);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
  color: var(--ink);
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin-top: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--muted);
  max-width: 720px;
  line-height: 1.85;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 252, 245, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--line-strong);
  box-shadow: 0 2px 0 rgba(47, 111, 237, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--primary);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--line-strong);
  box-shadow: 2px 2px 0 rgba(31, 42, 58, 0.9);
  flex-shrink: 0;
}

.logo-icon svg {
  display: block;
}

.logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.logo:hover .logo-icon {
  background: var(--primary-dark);
}

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

.main-nav a {
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  border: 2px solid transparent;
  transition: all 0.2s ease;
}

.main-nav a:hover {
  color: var(--ink);
  background: rgba(47, 111, 237, 0.06);
}

.main-nav a.active {
  color: var(--primary);
  background: rgba(47, 111, 237, 0.10);
  border-color: rgba(47, 111, 237, 0.3);
  font-weight: 600;
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius-sm);
  box-shadow: 3px 3px 0 rgba(31, 42, 58, 0.9);
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 4px 4px 0 rgba(31, 42, 58, 0.9);
}

.nav-cta:active {
  transform: translateY(1px);
  box-shadow: 1px 1px 0 rgba(31, 42, 58, 0.9);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 8px;
  transition: all 0.2s ease;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.2s ease;
}

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

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

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

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--weak);
}

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

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

.breadcrumb span.sep {
  margin: 0 8px;
  color: var(--weak);
}

.breadcrumb span.current {
  color: var(--ink);
  font-weight: 600;
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: 90px 0;
  margin-top: 0;
  background: var(--deep);
  color: #fff;
  border-bottom: 3px solid var(--line-strong);
  overflow: hidden;
}

.page-hero .hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.55;
}

.page-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(31, 42, 58, 0.92) 0%, rgba(31, 42, 58, 0.70) 45%, rgba(47, 111, 237, 0.35) 100%);
}

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

.hero-content {
  max-width: 760px;
}

.hero-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
  color: #F8D9A0;
}

.page-hero h1 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 18px;
  color: #fff;
}

.page-hero h1 .divider {
  color: var(--accent);
  margin: 0 8px;
  font-weight: 400;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 28px;
  max-width: 640px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: 100px;
}

.hero-tags .dot {
  width: 6px;
  height: 6px;
  background: #16A085;
  border-radius: 50%;
}

.hero-meta {
  margin-top: 28px;
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

/* ===== Security List ===== */
.security-section {
  background: var(--bg);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 44px;
}

.security-item {
  display: flex;
  gap: 20px;
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  position: relative;
}

.security-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: var(--primary);
  border-radius: 4px 0 0 4px;
}

.security-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}

.security-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: rgba(47, 111, 237, 0.08);
  border: 2px solid rgba(47, 111, 237, 0.25);
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.security-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}

.security-item p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.75;
}

/* ===== Process ===== */
.process-section {
  background: #FFFCF5;
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 44px;
  counter-reset: process;
}

.process-card {
  background: var(--card);
  border: 2px solid var(--line-strong);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.2s ease;
}

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

.process-num {
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
  font-variant-numeric: tabular-nums;
}

.process-card::after {
  content: "";
  position: absolute;
  top: 26px;
  right: -16px;
  width: 20px;
  height: 2px;
  background: var(--accent);
}

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

.process-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--ink);
}

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

/* ===== Channel ===== */
.channel-section {
  background: var(--bg);
}

.channel-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-top: 44px;
}

.channel-image {
  border-radius: var(--radius-lg);
  border: 3px solid var(--line-strong);
  box-shadow: 6px 6px 0 rgba(31, 42, 58, 0.12);
}

.channel-image img {
  border-radius: var(--radius-lg);
  width: 100%;
  height: 380px;
  object-fit: cover;
}

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

.channel-card {
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  background: var(--card);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.channel-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.channel-card.trust {
  border-left: 5px solid #16A085;
}

.channel-card.risk {
  border-left: 5px solid #E45A4A;
}

.channel-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.channel-card.trust h3 {
  color: #16A085;
}

.channel-card.risk h3 {
  color: #E45A4A;
}

.channel-card ul {
  list-style: none;
  padding: 0;
}

.channel-card ul li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 6px;
}

.channel-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.channel-card.trust ul li::before {
  background: #16A085;
}

.channel-card.risk ul li::before {
  background: #E45A4A;
}

/* ===== FAQ ===== */
.faq-section {
  background: #FFFCF5;
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.faq-list {
  max-width: 860px;
  margin: 44px auto 0;
}

.faq-item {
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  border: none;
  text-align: left;
  width: 100%;
  transition: background 0.2s ease;
}

.faq-q:hover {
  background: rgba(47, 111, 237, 0.03);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 400;
  color: var(--weak);
  border: 2px solid var(--line);
  border-radius: 6px;
  transition: all 0.25s ease;
  line-height: 1;
}

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

.faq-a {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-a {
  max-height: 280px;
  padding: 0 24px 22px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--bg);
  padding: 80px 0;
  position: relative;
}

.cta-box {
  background: var(--deep);
  border: 3px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  box-shadow: 8px 8px 0 rgba(31, 42, 58, 0.12);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  background: rgba(245, 166, 35, 0.12);
  border-radius: 50%;
}

.cta-box h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  position: relative;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  background: var(--accent);
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius-sm);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
}

.cta-btn:hover {
  background: #FFB84D;
  color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.35);
}

.cta-btn:active {
  transform: translateY(1px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.35);
}

/* ===== Footer ===== */
.site-footer {
  background: #FFFCF5;
  border-top: 3px solid var(--line-strong);
  padding-top: 56px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
  margin-top: 16px;
  max-width: 380px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: 0.04em;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

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

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

.footer-links a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: all 0.2s ease;
}

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

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.footer-copy {
  font-size: 13px;
  color: var(--weak);
}

.footer-copy span {
  color: var(--muted);
  font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

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

  .channel-image img {
    height: 260px;
  }

  .footer-grid {
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 24px;
  }

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

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: #FFFCF5;
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 28px 28px;
    gap: 12px;
    border-left: 3px solid var(--line-strong);
    box-shadow: -8px 0 24px rgba(31, 42, 58, 0.1);
    transition: right 0.3s ease;
    z-index: 1001;
  }

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

  .main-nav a {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
  }

  .header-right .nav-cta {
    display: none;
  }

  .page-hero {
    padding: 64px 0;
  }

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

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

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

  .security-item {
    padding: 22px 18px;
  }

  .cta-box {
    padding: 40px 24px;
  }

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

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

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

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

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

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

  .hero-tags {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-meta {
    flex-direction: column;
    gap: 8px;
  }

  .security-item {
    flex-direction: column;
  }
}