/* ==========================================================================
   云关科技官网 - 新版样式表 (site.css)
   配色取自品牌 Logo：科技蓝 + 辅助绿
   ========================================================================== */

:root {
  --brand: #1899d6;
  --brand-dark: #0f7cb3;
  --brand-deep: #0e3a56;
  --brand-light: #e7f5fc;
  --brand-soft: #f3fafd;
  --green: #7cb342;
  --green-light: #eef7e4;
  --ink: #22323d;
  --text: #3c4d59;
  --muted: #7a8b96;
  --line: #e3eaf0;
  --bg: #f6f9fb;
  --white: #ffffff;
  --footer-bg: #10202b;
  --radius: 12px;
  --shadow: 0 14px 34px rgba(16, 42, 67, 0.1);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "\5FAE\8F6F\96C5\9ED1", "Segoe UI", Arial, sans-serif;
}

/* ---------- 基础 ---------- */
* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* 锚点跳转时避开吸顶导航遮挡 */
  scroll-padding-top: 82px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text);
  background: var(--white);
}

img {
  max-width: 100%;
  border: 0;
}

a {
  color: var(--brand-dark);
  text-decoration: none;
}

a:hover {
  color: var(--brand);
}

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.4;
  margin: 0 0 14px;
}

p {
  margin: 0 0 14px;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 22px;
}

.text-center { text-align: center; }
.content-narrow { max-width: 900px; margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.25s;
}

.site-header.scrolled {
  box-shadow: 0 10px 28px rgba(16, 42, 67, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  height: 46px;
  width: auto;
  display: block;
}

.nav > ul {
  display: flex;
  align-items: stretch;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav > ul > li {
  position: relative;
}

.nav > ul > li > a {
  display: block;
  padding: 0 18px;
  line-height: 70px;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav > ul > li > a::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.22s;
}

.nav > ul > li:hover > a,
.nav > ul > li.active > a {
  color: var(--brand-dark);
}

.nav > ul > li:hover > a::after,
.nav > ul > li.active > a::after {
  transform: scaleX(1);
}

/* 下拉菜单（桌面端） */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 196px;
  margin: 0;
  padding: 8px 0;
  list-style: none;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 0 0 12px 12px;
  box-shadow: 0 18px 36px rgba(16, 42, 67, 0.14);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.18s, transform 0.18s, visibility 0.18s;
}

.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 9px 20px;
  font-size: 14.5px;
  color: var(--text);
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.dropdown a:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.dropdown a.active {
  color: var(--brand);
  font-weight: 600;
  background: var(--brand-soft);
}

/* 汉堡按钮 */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 8px;
  background: none;
  border: 0;
  cursor: pointer;
}

.burger span {
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.25s, opacity 0.25s;
}

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

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

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

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, #0d3450 0%, #10608d 52%, #1899d6 100%);
  padding: 96px 0 88px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.13) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.5;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-title {
  font-size: 40px;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.hero-sub {
  font-size: 17px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 32px;
}

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

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 56px;
  margin-top: 54px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.stat b {
  display: block;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
}

.stat span {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.75);
}

/* ---------- 内页横幅 ---------- */
.page-banner {
  background: linear-gradient(135deg, #0e3552 0%, #17789f 60%, #1a9ed2 100%);
  color: #fff;
  padding: 58px 0 52px;
}

.page-banner h1 {
  color: #fff;
  font-size: 30px;
  margin-bottom: 10px;
}

.page-banner .banner-desc {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  margin: 0 0 10px;
  max-width: 760px;
}

.breadcrumb {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
}

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

.breadcrumb .sep {
  margin: 0 8px;
  opacity: 0.6;
}

/* ---------- 区块 ---------- */
.section {
  padding: 66px 0;
}

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

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 46px;
}

.section-head h2 {
  font-size: 28px;
  margin-bottom: 0;
  position: relative;
  padding-bottom: 18px;
}

.section-head h2::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 46px;
  height: 3px;
  border-radius: 2px;
  background: var(--brand);
}

.section-head p {
  margin: 16px 0 0;
  color: var(--muted);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.2s, border-color 0.2s;
}

.btn:hover {
  transform: translateY(-1px);
}

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

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

.btn-outline {
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff;
}

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

.btn-ghost {
  border-color: var(--brand);
  color: var(--brand-dark);
}

.btn-ghost:hover {
  background: var(--brand-light);
  color: var(--brand-dark);
}

.btn-block {
  display: block;
  width: 100%;
}

/* ---------- 卡片与栅格 ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: #cfe6f4;
  box-shadow: var(--shadow);
}

.card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.card p {
  color: var(--muted);
  font-size: 14.5px;
  margin: 0;
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: var(--brand-light);
  color: var(--brand-dark);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

/* 链接卡片（解决方案等） */
.card-link {
  display: block;
  color: inherit;
}

.card-link:hover {
  color: inherit;
}

.card-link .card-more {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  color: var(--brand-dark);
  font-weight: 600;
}

.card-link:hover .card-more {
  color: var(--brand);
}

/* 案例卡片 */
.case-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: #cfe6f4;
  box-shadow: var(--shadow);
  color: inherit;
}

.case-thumb {
  display: grid;
  place-items: center;
  height: 232px;
  overflow: hidden;
  background: linear-gradient(180deg, #e9f3f9, #f8fbfd);
}

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

.case-thumb.wide img {
  width: 100%;
  max-height: none;
  height: auto;
}

.case-body {
  padding: 22px 22px 24px;
}

.case-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.case-body p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

/* ---------- 文本区块 ---------- */
.lead {
  font-size: 17px;
  line-height: 1.95;
  color: var(--text);
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.split img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 10px 26px rgba(16, 42, 67, 0.08);
  display: block;
}

.split .split-text h2 {
  font-size: 26px;
}

/* 特性列表 */
.feature-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 30px;
}

.feature-list li {
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  color: var(--text);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 18px;
  height: 18px;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%231899d6" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"><path d="M5 12l5 5 9-11"/></svg>') center/contain no-repeat;
}

/* 编号步骤 */
.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  margin-top: 26px;
}

.step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 12px;
  font-size: 22px;
  font-weight: 700;
  color: var(--brand);
  line-height: 1;
}

.step h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- 图片展示 ---------- */
.shot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
  align-items: start;
  margin: 30px 0;
}

.shot-grid img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  border: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(16, 42, 67, 0.08);
}

.collage {
  margin: 30px 0;
}

.collage img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.diagram {
  max-width: 720px;
  margin: 26px auto;
}

.diagram img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.figure-caption {
  margin-top: 10px;
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
}

/* 说明书文档流 */
.doc-flow {
  max-width: 860px;
  margin: 0 auto;
}

.doc-flow a {
  display: block;
  margin-bottom: 20px;
}

.doc-flow a:last-child {
  margin-bottom: 0;
}

.doc-flow img {
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: box-shadow 0.2s;
}

.doc-flow a:hover img {
  box-shadow: var(--shadow);
}

/* ---------- 视频 ---------- */
.video-wrap {
  position: relative;
  width: 100%;
  max-width: 860px;
  margin: 0 auto 26px;
  padding-bottom: 56.25%;
  height: 0;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
}

.video-wrap video,
.video-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- 下载页 ---------- */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.dl-card {
  display: flex;
  flex-direction: column;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 32px 26px 28px;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.dl-card .dl-badge {
  align-self: center;
  margin-bottom: 16px;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--brand-light);
  color: var(--brand-dark);
  font-size: 12.5px;
  font-weight: 600;
}

.dl-card .dl-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
}

.dl-card .dl-meta {
  color: var(--muted);
  font-size: 13.5px;
  margin: 0 0 20px;
}

.dl-card .btn {
  margin-top: auto;
}

.note {
  background: var(--brand-soft);
  border: 1px solid #d5ecf8;
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 20px 0;
}

.info-table th,
.info-table td {
  border: 1px solid var(--line);
  padding: 10px 14px;
  text-align: left;
}

.info-table th {
  background: var(--brand-soft);
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 860px;
  margin: 0 auto;
}

.faq details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 14px;
  overflow: hidden;
}

.faq summary {
  position: relative;
  padding: 16px 48px 16px 22px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--brand);
  line-height: 1;
}

.faq details[open] summary::after {
  content: "\2212";
}

.faq .faq-body {
  padding: 0 22px 18px;
  color: var(--muted);
  font-size: 14.5px;
}

.faq .faq-body p:last-child {
  margin-bottom: 0;
}

/* ---------- 时间线 / 动态 ---------- */
.timeline {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--line);
}

.timeline-item {
  position: relative;
  margin-bottom: 30px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-light);
}

.timeline-date {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-dark);
  margin-bottom: 4px;
}

.timeline-item h4 {
  font-size: 16.5px;
  margin-bottom: 6px;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 30px;
  align-items: start;
}

.contact-block {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  margin-bottom: 22px;
}

.contact-block h3 {
  font-size: 18px;
  margin-bottom: 16px;
}

.contact-line {
  display: flex;
  gap: 12px;
  margin: 10px 0;
  font-size: 15px;
}

.contact-line b {
  min-width: 70px;
  color: var(--ink);
  font-weight: 600;
}

.contact-line span,
.contact-line a {
  color: var(--text);
}

.contact-line a:hover {
  color: var(--brand);
}

/* ---------- CTA 横幅 ---------- */
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  flex-wrap: wrap;
  background: linear-gradient(135deg, #0e3552, #1787bd);
  color: #fff;
  border-radius: 16px;
  padding: 44px 46px;
}

.cta-band h2 {
  color: #fff;
  font-size: 24px;
  margin-bottom: 8px;
}

.cta-band p {
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
}

/* ---------- 技术栈 ---------- */
.tech-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 38px 46px;
  align-items: center;
  justify-content: center;
}

.tech {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.tech img {
  height: 46px;
  width: auto;
  max-width: 110px;
  display: block;
  margin: 0 auto 8px;
  object-fit: contain;
}

/* ---------- 合作伙伴 ---------- */
.partner-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}

.partner-chip {
  display: inline-flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 18px;
}

.partner-chip img {
  height: 30px;
  width: auto;
  display: block;
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-block;
  margin: 0 8px 8px 0;
  padding: 3px 13px;
  border-radius: 999px;
  background: var(--brand-light);
  color: var(--brand-dark);
  font-size: 12.5px;
}

.tag.green {
  background: var(--green-light);
  color: #567d1f;
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 76px;
  background: var(--footer-bg);
  color: #9db1bd;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr 1fr 1.05fr;
  gap: 30px;
  padding: 58px 0 36px;
}

.footer-brand p {
  font-size: 13.5px;
  line-height: 1.9;
  color: #7f95a2;
  margin: 16px 0 0;
}

.footer-logo {
  height: 42px;
  width: auto;
  background: #fff;
  border-radius: 8px;
  padding: 5px 12px;
  box-sizing: content-box;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
}

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

.footer-col li {
  margin: 9px 0;
}

.footer-col a {
  color: #9db1bd;
  font-size: 13.5px;
}

.footer-col a:hover {
  color: #fff;
}

.footer-contact p {
  margin: 0 0 10px;
  font-size: 13.5px;
}

.footer-contact a {
  color: #cfe3ee;
}

.footer-contact a:hover {
  color: #fff;
}

.footer-partners {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.partner-label {
  color: #7f95a2;
  font-size: 13px;
  margin-right: 4px;
}

.footer-partners .partner-chip {
  border: 0;
  padding: 5px 14px;
}

.footer-partners .partner-chip img {
  height: 24px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 18px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12.5px;
  color: #7f95a2;
}

.footer-bottom a {
  color: #7f95a2;
}

.footer-bottom a:hover {
  color: #fff;
}

/* ---------- 隐私政策页 ---------- */
.policy-page {
  padding: 48px 0 10px;
}

.policy-content {
  max-width: 880px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 42px 46px;
}

.policy-content p {
  font-size: 14.5px !important;
  line-height: 2 !important;
  color: var(--text);
}

.policy-content span {
  font-family: var(--font) !important;
}

.policy-content span[style*="bold"] {
  color: var(--ink);
  font-size: 16px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

@media (max-width: 920px) {
  .brand img {
    height: 40px;
  }

  .burger {
    display: flex;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    max-height: calc(100vh - 64px);
    overflow: auto;
    background: var(--white);
    border-top: 1px solid var(--line);
    box-shadow: 0 20px 36px rgba(16, 42, 67, 0.16);
    padding: 6px 0 16px;
  }

  body.nav-open .nav {
    display: block;
  }

  .nav > ul {
    display: block;
    padding: 0 18px;
  }

  .nav > ul > li {
    border-bottom: 1px solid var(--line);
  }

  .nav > ul > li > a {
    line-height: 52px;
    padding: 0 6px;
    font-size: 15.5px;
  }

  .nav > ul > li > a::after {
    display: none;
  }

  .dropdown {
    position: static;
    min-width: 0;
    margin: 0 0 10px 10px;
    padding: 0;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .has-dropdown.open .dropdown {
    display: block;
  }

  .dropdown a {
    line-height: 44px;
    padding: 0 16px;
    font-size: 14.5px;
  }

  .hero {
    padding: 70px 0 64px;
  }

  .hero-title {
    font-size: 30px;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .page-banner h1 {
    font-size: 25px;
  }

  .section {
    padding: 50px 0;
  }

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

  .cta-band {
    padding: 34px 30px;
  }

  .policy-content {
    padding: 30px 24px;
  }
}

@media (max-width: 620px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  .hero-title {
    font-size: 25px;
  }

  .hero-stats {
    gap: 18px 34px;
  }

  .stat b {
    font-size: 24px;
  }

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

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

  .case-thumb {
    height: 200px;
  }
}