/* 济南汇宏电子设备有限公司官网样式 */
/* 主色调：深海蓝 #1b4b82 */

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

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.6;
}

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

ul, ol {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* ===== 顶部导航 ===== */
.header {
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

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

.logo-icon,
.logo-mark {
  width: 42px;
  height: 42px;
  background: #1b4b82;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: bold;
}

.logo-mark {
  background: #fff;
  border: 1px solid rgba(15,61,99,0.08);
  padding: 4px;
  overflow: hidden;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-text .brand-name {
  font-size: 18px;
  color: #1b4b82;
  line-height: 1.2;
  font-weight: 700;
}

.logo-text span {
  font-size: 12px;
  color: #888;
}

.nav {
  display: flex;
  align-items: center;
  gap: 5px;
}

.nav a {
  padding: 8px 14px;
  font-size: 15px;
  color: #333;
  border-radius: 4px;
  transition: all 0.3s;
  white-space: nowrap;
}

.nav a:hover,
.nav a.active {
  background: #1b4b82;
  color: #fff;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #1b4b82;
  font-size: 16px;
  font-weight: bold;
}

.header-phone .phone-icon {
  width: 32px;
  height: 32px;
  background: #1b4b82;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
}

/* 手机端导航 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  width: 24px;
  height: 3px;
  background: #1b4b82;
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== 轮播 Banner ===== */
.banner {
  position: relative;
  overflow: hidden;
  height: 480px;
}

.banner-slides {
  position: relative;
  height: 100%;
}

.banner-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
}

.banner-slide.active {
  opacity: 1;
  z-index: 1;
}

.banner-slide::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(27, 75, 130, 0.65);
}

.banner-content {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 600px;
}

.banner-content h1,
.banner-content h2 {
  font-size: 36px;
  margin-bottom: 15px;
  line-height: 1.3;
}

.banner-content p {
  font-size: 18px;
  margin-bottom: 25px;
  opacity: 0.9;
}

.banner-btn {
  display: inline-block;
  padding: 12px 30px;
  background: #fff;
  color: #1b4b82;
  font-size: 16px;
  font-weight: bold;
  border-radius: 4px;
  transition: all 0.3s;
}

.banner-btn:hover {
  background: #f0f4fa;
  transform: translateY(-2px);
}

.banner-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
}

.banner-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 0.3s;
}

.banner-dots span.active {
  background: #fff;
  transform: scale(1.2);
}

/* ===== 通用板块标题 ===== */
.section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 30px;
  color: #1b4b82;
  margin-bottom: 10px;
}

.section-title p {
  font-size: 16px;
  color: #888;
}

/* ===== 公司简介板块 ===== */
.about-preview {
  background: #f7f9fc;
}

.about-preview .container {
  display: flex;
  align-items: center;
  gap: 50px;
}

.about-text {
  flex: 1;
}

.about-text h3 {
  font-size: 24px;
  color: #1b4b82;
  margin-bottom: 15px;
}

.about-text p {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 15px;
}

.about-text .btn-outline {
  display: inline-block;
  padding: 10px 25px;
  border: 2px solid #1b4b82;
  color: #1b4b82;
  border-radius: 4px;
  font-size: 15px;
  transition: all 0.3s;
}

.about-text .btn-outline:hover {
  background: #1b4b82;
  color: #fff;
}

.about-img {
  flex: 1;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.about-img-placeholder {
  width: 100%;
  height: 300px;
  background: linear-gradient(135deg, #1b4b82, #2a6bb5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  text-align: center;
  padding: 20px;
}

/* ===== 四大业务板块 ===== */
.business-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.business-card {
  background: #fff;
  border-radius: 8px;
  padding: 30px 20px;
  text-align: center;
  box-shadow: 0 3px 15px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid #eee;
}

.business-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(27,75,130,0.15);
  border-color: #1b4b82;
}

.business-icon {
  width: 70px;
  height: 70px;
  background: #f0f4fa;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-size: 30px;
  color: #1b4b82;
}

.business-card h3 {
  font-size: 18px;
  color: #1b4b82;
  margin-bottom: 10px;
}

.business-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* ===== 服务优势 ===== */
.advantages {
  background: #f7f9fc;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.advantage-item {
  text-align: center;
  padding: 30px 20px;
}

.advantage-num {
  font-size: 40px;
  font-weight: bold;
  color: #1b4b82;
  opacity: 0.2;
  margin-bottom: 10px;
}

.advantage-item h3 {
  font-size: 18px;
  color: #1b4b82;
  margin-bottom: 10px;
}

.advantage-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* ===== 工程案例预览 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.case-card {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
  transition: all 0.3s;
  background: #fff;
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.case-img {
  height: 200px;
  background: linear-gradient(135deg, #1b4b82, #3a7bc8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  text-align: center;
  padding: 20px;
}

.case-body {
  padding: 20px;
}

.case-body h3 {
  font-size: 16px;
  color: #333;
  margin-bottom: 8px;
}

.case-body p {
  font-size: 14px;
  color: #888;
}

/* ===== 底部 ===== */
.footer {
  background: #1b4b82;
  color: #fff;
  padding: 50px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 30px;
}

.footer-col h3 {
  font-size: 18px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: #fff;
}

.footer-col p,
.footer-col li {
  font-size: 14px;
  line-height: 2;
  opacity: 0.85;
}

.footer-col li::before {
  content: '›';
  margin-right: 8px;
}

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding: 20px 0;
  text-align: center;
  font-size: 14px;
  opacity: 0.7;
}

/* ===== 内页通用 ===== */
.page-banner {
  background: linear-gradient(135deg, #1b4b82, #2a6bb5);
  padding: 60px 0;
  text-align: center;
  color: #fff;
}

.page-banner h1 {
  font-size: 36px;
  margin-bottom: 10px;
}

.page-banner p {
  font-size: 16px;
  opacity: 0.85;
}

/* ===== 关于我们页面 ===== */
.about-content h3 {
  font-size: 22px;
  color: #1b4b82;
  margin: 30px 0 15px;
  padding-left: 12px;
  border-left: 4px solid #1b4b82;
}

.about-content p {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 15px;
}

.timeline {
  position: relative;
  padding-left: 30px;
  margin: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #1b4b82;
}

.timeline-item {
  position: relative;
  margin-bottom: 25px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #1b4b82;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px #1b4b82;
}

.timeline-item .year {
  font-weight: bold;
  color: #1b4b82;
  font-size: 16px;
}

.timeline-item p {
  color: #666;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin: 20px 0;
}

.team-card {
  background: #f7f9fc;
  padding: 25px;
  border-radius: 8px;
  text-align: center;
}

.team-card h4 {
  font-size: 18px;
  color: #1b4b82;
  margin-bottom: 5px;
}

.team-card p {
  font-size: 14px;
  color: #888;
}

/* ===== 产品中心 ===== */
.product-sidebar {
  width: 250px;
  float: left;
}

.product-sidebar h3 {
  background: #1b4b82;
  color: #fff;
  padding: 12px 15px;
  font-size: 16px;
  border-radius: 4px 4px 0 0;
}

.product-sidebar a {
  display: block;
  padding: 12px 15px;
  border: 1px solid #eee;
  border-top: none;
  font-size: 15px;
  color: #555;
  transition: all 0.3s;
}

.product-sidebar a:hover,
.product-sidebar a.active {
  background: #f0f4fa;
  color: #1b4b82;
  padding-left: 25px;
}

.product-main {
  margin-left: 280px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.product-card {
  border: 1px solid #eee;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s;
}

.product-card:hover {
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.product-card-img {
  height: 200px;
  background: linear-gradient(135deg, #1b4b82, #3a7bc8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  text-align: center;
  padding: 20px;
}

.product-card-body {
  padding: 20px;
}

.product-card-body h3 {
  font-size: 17px;
  color: #1b4b82;
  margin-bottom: 10px;
}

.product-card-body p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

.product-card-body ul {
  font-size: 13px;
  color: #888;
  margin-top: 10px;
}

.product-card-body ul li::before {
  content: '✓ ';
  color: #1b4b82;
}

/* ===== 解决方案 ===== */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.solution-card {
  background: #fff;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.06);
  border: 1px solid #eee;
  transition: all 0.3s;
}

.solution-card:hover {
  border-color: #1b4b82;
  box-shadow: 0 5px 20px rgba(27,75,130,0.1);
}

.solution-card h3 {
  font-size: 20px;
  color: #1b4b82;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.solution-card h3 span {
  font-size: 24px;
}

.solution-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

.solution-card ul {
  margin-top: 10px;
  font-size: 14px;
  color: #666;
}

.solution-card ul li {
  padding: 5px 0;
  padding-left: 20px;
  position: relative;
}

.solution-card ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #1b4b82;
}

/* ===== 新闻资讯 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.news-card {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 3px 15px rgba(0,0,0,0.06);
  transition: all 0.3s;
  background: #fff;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.news-img {
  height: 180px;
  background: linear-gradient(135deg, #1b4b82, #3a7bc8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
}

.news-body {
  padding: 20px;
}

.news-date {
  font-size: 13px;
  color: #aaa;
  margin-bottom: 8px;
}

.news-body h3 {
  font-size: 16px;
  color: #333;
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-body p {
  font-size: 14px;
  color: #888;
  line-height: 1.6;
}

/* ===== 联系我们 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info h3 {
  font-size: 20px;
  color: #1b4b82;
  margin-bottom: 20px;
}

.contact-info p {
  font-size: 15px;
  color: #555;
  line-height: 2.2;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.contact-icon {
  width: 36px;
  height: 36px;
  background: #f0f4fa;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1b4b82;
  flex-shrink: 0;
}

.contact-form h3 {
  font-size: 20px;
  color: #1b4b82;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: #555;
  margin-bottom: 5px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #1b4b82;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-btn {
  display: inline-block;
  padding: 12px 35px;
  background: #1b4b82;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s;
}

.form-btn:hover {
  background: #153a68;
}

.map-container {
  margin-top: 40px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

.map-placeholder {
  width: 100%;
  height: 350px;
  background: #f0f4fa;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-size: 16px;
  border: 1px solid #ddd;
}

/* ===== 售后服务 ===== */
.service-content h3 {
  font-size: 20px;
  color: #1b4b82;
  margin: 25px 0 15px;
}

.service-content p,
.service-content li {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
}

.service-content ul li {
  padding-left: 20px;
  position: relative;
}

.service-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #1b4b82;
  font-weight: bold;
}

.service-steps {
  display: flex;
  gap: 20px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.step-item {
  flex: 1;
  min-width: 140px;
  text-align: center;
  padding: 20px 15px;
  background: #f7f9fc;
  border-radius: 8px;
}

.step-num {
  width: 40px;
  height: 40px;
  background: #1b4b82;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  font-weight: bold;
}

.step-item p {
  font-size: 14px;
  color: #555;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .business-grid,
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .product-sidebar {
    width: 100%;
    float: none;
    margin-bottom: 30px;
  }

  .product-main {
    margin-left: 0;
  }

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

  .about-preview .container {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .header .container {
    height: 60px;
  }

  .nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  }

  .nav.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .header-phone {
    display: none;
  }

  .banner {
    height: 350px;
  }

  .banner-content h1,
  .banner-content h2 {
    font-size: 24px;
  }

  .banner-content p {
    font-size: 15px;
  }

  .section {
    padding: 40px 0;
  }

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

  .business-grid,
  .advantages-grid,
  .cases-grid,
  .news-grid,
  .product-grid,
  .solution-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .page-banner {
    padding: 40px 0;
  }

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

@media (max-width: 480px) {
  .banner {
    height: 280px;
  }

  .banner-content h1,
  .banner-content h2 {
    font-size: 20px;
  }

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

  .section-title h2 {
    font-size: 20px;
  }
}

/* ===== B2B independent site visual refresh ===== */
:root {
  --ink: #101820;
  --panel: #ffffff;
  --muted: #607083;
  --line: #d9e1ea;
  --brand: #0f3d63;
  --brand-deep: #071d31;
  --accent: #f4b23f;
  --soft: #f4f7fb;
}

body {
  color: var(--ink);
  background: #fff;
}

.container {
  max-width: 1240px;
  padding: 0 24px;
}

.header {
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid rgba(15,61,99,0.08);
  box-shadow: 0 10px 30px rgba(7,29,49,0.08);
}

.header .container {
  height: 78px;
}

.logo-icon,
.logo-mark {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--brand), #1b6d9d);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(15,61,99,0.24);
}

.logo-mark {
  background: #fff;
  box-shadow: 0 10px 24px rgba(15,61,99,0.14);
}

.logo-text .brand-name {
  color: var(--brand-deep);
  font-size: 19px;
  letter-spacing: 0;
}

.logo-text span {
  color: var(--muted);
}

.nav a {
  color: #233142;
  border-radius: 6px;
}

.nav a:hover,
.nav a.active {
  background: var(--brand-deep);
}

.header-phone {
  color: var(--brand-deep);
}

.header-phone .phone-icon {
  background: var(--accent);
  color: var(--brand-deep);
}

.banner {
  height: 660px;
  background: var(--brand-deep);
}

.banner-slide {
  align-items: center;
}

.banner-slide::before {
  background:
    linear-gradient(90deg, rgba(7,29,49,0.92) 0%, rgba(7,29,49,0.76) 42%, rgba(7,29,49,0.28) 100%),
    linear-gradient(180deg, rgba(7,29,49,0.12), rgba(7,29,49,0.72));
}

.banner-content {
  max-width: 760px;
  padding-top: 20px;
}

.hero-kicker,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero-kicker::before,
.section-kicker::before {
  content: '';
  width: 42px;
  height: 2px;
  background: var(--accent);
}

.banner-content h1,
.banner-content h2 {
  font-size: 54px;
  line-height: 1.12;
  margin-bottom: 22px;
  max-width: 840px;
}

.banner-content p {
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255,255,255,0.86);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 30px 0 28px;
}

.banner-btn {
  background: var(--accent);
  color: var(--brand-deep);
  border-radius: 6px;
  padding: 14px 26px;
  box-shadow: 0 16px 34px rgba(244,178,63,0.28);
}

.banner-btn.secondary {
  color: #fff;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.32);
  box-shadow: none;
}

.banner-btn:hover {
  background: #ffd06b;
}

.banner-btn.secondary:hover {
  background: rgba(255,255,255,0.18);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-proof span {
  padding: 8px 12px;
  background: rgba(255,255,255,0.11);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: rgba(255,255,255,0.9);
  font-size: 13px;
}

.banner-dots {
  bottom: 34px;
}

.banner-dots span {
  width: 34px;
  height: 4px;
  border-radius: 99px;
}

.trust-strip {
  background: var(--brand-deep);
  color: #fff;
  border-top: 1px solid rgba(255,255,255,0.12);
}

.trust-strip .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  padding: 30px 24px;
  border-right: 1px solid rgba(255,255,255,0.12);
}

.trust-item:first-child {
  border-left: 1px solid rgba(255,255,255,0.12);
}

.trust-item strong {
  display: block;
  font-size: 38px;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 8px;
}

.trust-item span {
  color: rgba(255,255,255,0.78);
  font-size: 14px;
}

.premium-solutions {
  padding: 78px 0;
  background: var(--soft);
}

.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}

.section-heading-row h2 {
  font-size: 34px;
  line-height: 1.28;
  color: var(--brand-deep);
  max-width: 760px;
}

.section-heading-row > a {
  color: var(--brand);
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 5px;
  white-space: nowrap;
}

.premium-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.premium-card {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(16,24,32,0.08);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.premium-card:hover {
  transform: translateY(-8px);
  border-color: rgba(15,61,99,0.35);
  box-shadow: 0 26px 64px rgba(16,24,32,0.15);
}

.premium-card img {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.premium-card div {
  padding: 24px;
}

.premium-card span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.premium-card h3 {
  margin: 8px 0 10px;
  font-size: 22px;
  color: var(--brand-deep);
}

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

.seo-article-banner {
  text-align: left;
}

.seo-article-banner h1 {
  max-width: 920px;
  line-height: 1.25;
}

.article-layout .container {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 36px;
  align-items: start;
}

.article-main {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 38px;
  box-shadow: 0 18px 44px rgba(16,24,32,0.08);
}

.article-lead {
  color: #334155;
  font-size: 18px;
  line-height: 1.9;
  padding: 18px 20px;
  background: var(--soft);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  margin-bottom: 26px;
}

.article-main h2 {
  color: var(--brand-deep);
  font-size: 24px;
  margin: 30px 0 12px;
  line-height: 1.35;
}

.article-main p {
  color: #4b5b6c;
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 14px;
}

.article-cta {
  margin-top: 34px;
  padding: 24px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand-deep), var(--brand));
  color: #fff;
}

.article-cta strong {
  display: block;
  font-size: 20px;
  margin-bottom: 8px;
}

.article-cta p {
  color: rgba(255,255,255,0.82);
}

.article-cta a {
  display: inline-block;
  margin-top: 8px;
  background: var(--accent);
  color: var(--brand-deep);
  padding: 12px 20px;
  border-radius: 6px;
  font-weight: 700;
}

.article-sidebar {
  position: sticky;
  top: 100px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 18px 44px rgba(16,24,32,0.08);
}

.article-sidebar h3 {
  color: var(--brand-deep);
  font-size: 20px;
  margin-bottom: 14px;
}

.article-sidebar > a {
  display: block;
  padding: 12px 0;
  color: #334155;
  border-bottom: 1px solid var(--line);
}

.article-sidebar > a:hover {
  color: var(--brand);
}

.sidebar-card {
  margin-top: 22px;
  padding: 18px;
  border-radius: 8px;
  background: var(--soft);
}

.sidebar-card strong,
.sidebar-card span,
.sidebar-card small {
  display: block;
}

.sidebar-card span {
  color: var(--brand);
  font-size: 24px;
  font-weight: 800;
  margin: 6px 0;
}

.sidebar-card small {
  color: var(--muted);
  line-height: 1.7;
}

.news-card {
  color: inherit;
}

.news-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 22px;
  background: #fff;
}

.section {
  padding: 78px 0;
}

.section-title h2 {
  color: var(--brand-deep);
  font-size: 34px;
}

.section-title p {
  color: var(--muted);
}

.business-card,
.case-card,
.news-card,
.solution-card,
.team-card,
.product-card {
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(16,24,32,0.07);
}

.business-card:hover,
.case-card:hover,
.news-card:hover,
.solution-card:hover,
.product-card:hover {
  box-shadow: 0 24px 58px rgba(16,24,32,0.13);
}

.business-icon {
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(15,61,99,0.1), rgba(244,178,63,0.16));
}

.page-banner {
  background:
    linear-gradient(90deg, rgba(7,29,49,0.92), rgba(15,61,99,0.82)),
    url('images/banner2.jpg') center/cover;
  padding: 86px 0;
}

.footer {
  background: var(--brand-deep);
}

@media (max-width: 992px) {
  .banner {
    height: 590px;
  }

  .banner-content h1,
  .banner-content h2 {
    font-size: 42px;
  }

  .trust-strip .container,
  .premium-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-heading-row {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .header .container {
    height: 66px;
  }

  .banner {
    height: 620px;
  }

  .banner-content h1,
  .banner-content h2 {
    font-size: 34px;
  }

  .banner-content p {
    font-size: 16px;
  }

  .trust-strip .container,
  .premium-grid,
  .article-layout .container {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .trust-item,
  .trust-item:first-child {
    border-left: 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255,255,255,0.12);
  }

  .section-heading-row h2,
  .section-title h2 {
    font-size: 28px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 18px;
  }

  .banner {
    height: 640px;
  }

  .banner-content h1,
  .banner-content h2 {
    font-size: 30px;
  }

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

  .banner-btn {
    width: 100%;
    text-align: center;
  }
}