/* ===== 全局样式 ===== */
:root {
  --primary: #1a3a5c;
  --primary-light: #2a5a8c;
  --primary-dark: #0f2440;
  --secondary: #c8a45c;
  --secondary-light: #e0c080;
  --secondary-dark: #a88840;
  --accent: #2d7bcb;
  --text: #333333;
  --text-light: #666666;
  --text-lighter: #999999;
  --bg: #f8f9fa;
  --bg-white: #ffffff;
  --bg-dark: #1a1a2e;
  --border: #e5e7eb;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--secondary);
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-title p {
  color: var(--text-light);
  font-size: 1.05rem;
  margin-top: 8px;
}

/* ===== 顶部信息栏 ===== */
.top-bar {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  padding: 6px 0;
  display: none;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar a {
  color: var(--secondary);
}

.top-bar a:hover {
  color: var(--secondary-light);
}

@media (min-width: 768px) {
  .top-bar {
    display: block;
  }
}

/* ===== 头部导航 ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-white);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,0.1);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  font-weight: bold;
}

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

.nav {
  display: none;
}

.nav-list {
  display: flex;
  gap: 5px;
}

.nav-list a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--primary);
  background: rgba(26, 58, 92, 0.06);
}

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

.header-cta {
  display: none;
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200, 164, 92, 0.4);
}

@media (min-width: 992px) {
  .nav {
    display: flex;
  }
  .header-cta {
    display: inline-block;
  }
}

/* ===== 移动端菜单按钮 ===== */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

@media (min-width: 992px) {
  .menu-toggle {
    display: none;
  }
}

/* ===== 移动端菜单 ===== */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--bg-white);
  z-index: 2000;
  padding: 80px 30px 30px;
  transition: var(--transition);
  box-shadow: -10px 0 40px rgba(0,0,0,0.1);
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 1999;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.mobile-menu-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu .close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: none;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
}

.mobile-menu .nav-list {
  flex-direction: column;
  gap: 5px;
}

.mobile-menu .nav-list a {
  display: block;
  padding: 12px 16px;
  font-size: 1.05rem;
  border-radius: var(--radius-sm);
}

.mobile-menu .nav-list a:hover,
.mobile-menu .nav-list a.active {
  background: rgba(26, 58, 92, 0.06);
  color: var(--primary);
}

.mobile-menu .header-cta {
  display: block;
  text-align: center;
  margin-top: 20px;
}

/* ===== Hero 区域 ===== */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: white;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,164,92,0.08) 0%, transparent 70%);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45,123,203,0.1) 0%, transparent 70%);
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.hero-content h1 {
  font-size: 2.2rem;
  line-height: 1.3;
  margin-bottom: 16px;
  font-weight: 800;
}

.hero-content h1 span {
  color: var(--secondary);
}

.hero-content p {
  font-size: 1.05rem;
  opacity: 0.9;
  margin-bottom: 30px;
  max-width: 540px;
  line-height: 1.8;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.hero-stat {
  text-align: center;
  padding: 16px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
}

.hero-stat .number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--secondary);
  display: block;
}

.hero-stat .label {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-top: 4px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
  box-shadow: 0 4px 15px rgba(200,164,92,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200,164,92,0.45);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: var(--secondary);
  color: var(--secondary);
  background: rgba(200,164,92,0.1);
}

.hero-image {
  display: none;
}

@media (min-width: 768px) {
  .hero {
    padding: 120px 0 100px;
  }
  .hero-content h1 {
    font-size: 2.8rem;
  }
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .hero-image-placeholder {
    width: 100%;
    max-width: 450px;
    aspect-ratio: 1;
    background: rgba(255,255,255,0.05);
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    position: relative;
    overflow: hidden;
  }
  .hero-image-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(200,164,92,0.1), transparent);
  }
}

/* ===== 服务卡片 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(180deg, var(--secondary), var(--secondary-dark));
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.service-card:hover::before {
  height: 100%;
}

.service-card .icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.15rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.service-card p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.7;
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===== 为什么选择我们 ===== */
.why-us {
  background: var(--bg-white);
}

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

.feature-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius);
  background: var(--bg);
  transition: var(--transition);
  border: 1px solid transparent;
}

.feature-card:hover {
  border-color: var(--secondary);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.feature-card .icon {
  font-size: 2.8rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-light);
  font-size: 0.9rem;
}

@media (min-width: 600px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* ===== 资质类型 ===== */
.qual-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.qual-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 500;
}

.qual-item .icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
  display: block;
}

.qual-item:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(26, 58, 92, 0.2);
}

@media (min-width: 600px) {
  .qual-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .qual-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ===== 政策新闻 ===== */
.policy-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 20px;
}

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

.policy-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.policy-card h3 {
  font-size: 1.05rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.policy-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.7;
}

@media (min-width: 600px) {
  .policy-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .policy-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-question {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--primary);
  font-size: 0.98rem;
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(26, 58, 92, 0.02);
}

.faq-question .arrow {
  transition: var(--transition);
  font-size: 0.8rem;
  color: var(--text-lighter);
}

.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
  color: var(--secondary);
}

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

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

.faq-answer p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* ===== 案例 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.case-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 4px;
  margin: 24px 24px 0;
  font-weight: 500;
}

.case-card h3 {
  font-size: 1.05rem;
  color: var(--primary);
  padding: 12px 24px 8px;
}

.case-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  padding: 0 24px 24px;
  line-height: 1.7;
}

@media (min-width: 600px) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .cases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== CTA 区域 ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: white;
  text-align: center;
  padding: 80px 0;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.cta-section p {
  opacity: 0.9;
  margin-bottom: 30px;
  font-size: 1.05rem;
}

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

/* ===== 页脚 ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  font-size: 1.05rem;
  color: white;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--secondary);
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.8;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 0.9rem;
  opacity: 0.8;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  opacity: 1;
  color: var(--secondary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-contact li a {
  color: var(--secondary);
  opacity: 1;
}

.footer-qr {
  margin-top: 16px;
  text-align: center;
}

.footer-qr-box {
  width: 120px;
  height: 120px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.footer-qr span {
  font-size: 0.82rem;
  opacity: 0.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.6;
}

.footer-bottom a {
  color: var(--secondary);
}

@media (min-width: 600px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* ===== 页面横幅 ===== */
.page-banner {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: white;
  padding: 60px 0;
  text-align: center;
}

.page-banner h1 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.page-banner p {
  opacity: 0.85;
  font-size: 1rem;
}

/* ===== 内容页面 ===== */
.page-content {
  padding: 60px 0;
}

/* ===== 关于我们 ===== */
.about-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.about-text h2 {
  color: var(--primary);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.about-text p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.about-stat {
  background: var(--bg);
  padding: 24px;
  border-radius: var(--radius);
  text-align: center;
}

.about-stat .number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--secondary);
  display: block;
}

.about-stat .label {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-top: 4px;
}

@media (min-width: 768px) {
  .about-section {
    grid-template-columns: 1fr 1fr;
  }
  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

.contact-info h2 {
  color: var(--primary);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 24px;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.contact-detail .icon {
  font-size: 1.5rem;
  width: 44px;
  height: 44px;
  background: var(--bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail .text {
  color: var(--text);
}

.contact-detail .text .label {
  font-size: 0.82rem;
  color: var(--text-lighter);
}

.contact-detail .text .value {
  font-weight: 500;
}

.contact-detail .text .value a {
  color: var(--accent);
}

.contact-form {
  background: var(--bg-white);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.contact-form h3 {
  color: var(--primary);
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45,123,203,0.1);
}

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

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===== 资质标准 ===== */
.standard-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

.standard-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.standard-item h3 {
  color: var(--primary);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.standard-item p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.7;
}

.standard-item .badge {
  display: inline-block;
  background: rgba(200,164,92,0.15);
  color: var(--secondary-dark);
  font-size: 0.8rem;
  padding: 3px 10px;
  border-radius: 4px;
  margin-top: 10px;
  font-weight: 500;
}

@media (min-width: 600px) {
  .standard-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== 文章列表 ===== */
.article-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

.article-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.article-item .date {
  font-size: 0.82rem;
  color: var(--text-lighter);
  margin-bottom: 6px;
}

.article-item h3 {
  color: var(--primary);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.article-item p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.7;
}

.article-item .read-more {
  display: inline-block;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 500;
  margin-top: 12px;
}

.article-item .read-more:hover {
  color: var(--primary);
}

/* ===== 浮动咨询按钮 ===== */
.float-consult {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  color: white;
}

.float-btn.phone {
  background: linear-gradient(135deg, #22c55e, #16a34a);
}

.float-btn.message {
  background: linear-gradient(135deg, var(--accent), var(--primary-light));
}

.float-btn.top-btn {
  background: var(--primary);
}

.float-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

/* ===== 动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.88rem;
  color: var(--text-lighter);
}

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

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

.breadcrumb span {
  color: var(--text-lighter);
}

/* ===== 政策提示 ===== */
.policy-alert {
  background: #fff8e6;
  border: 1px solid #f0dbaa;
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 30px;
}

.policy-alert h3 {
  color: #8a6d2b;
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.policy-alert ul {
  padding-left: 0;
}

.policy-alert ul li {
  color: #6b5a2e;
  font-size: 0.9rem;
  padding: 4px 0;
  line-height: 1.7;
  position: relative;
  padding-left: 16px;
}

.policy-alert ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #c8a45c;
  font-weight: bold;
}

/* ===== 标准页面双栏布局 ===== */
.standards-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 30px;
  padding: 30px 0 60px;
}

/* ===== 侧边栏 ===== */
.standards-sidebar {
  position: sticky;
  top: 90px;
  align-self: start;
}

.sidebar-section {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  margin-bottom: 20px;
}

.sidebar-section h3 {
  font-size: 1rem;
  color: var(--primary);
  padding: 16px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.sidebar-nav-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.88rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.sidebar-nav-list a:last-child {
  border-bottom: none;
}

.sidebar-nav-list a:hover,
.sidebar-nav-list a.active {
  background: rgba(26, 58, 92, 0.04);
  color: var(--primary);
  font-weight: 500;
}

.sidebar-consult {
  padding: 20px;
  text-align: center;
}

.sidebar-consult h4 {
  color: var(--primary);
  font-size: 1rem;
  margin-bottom: 6px;
}

.sidebar-consult p {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.sidebar-consult .phone-link {
  display: block;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--secondary-dark);
  text-decoration: none;
}

.sidebar-consult .phone-link:hover {
  color: var(--secondary);
}

/* ===== 标准内容区 ===== */
.standards-content-header {
  margin-bottom: 24px;
}

.standards-content-header h2 {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.standards-content-header p {
  color: var(--text-lighter);
  font-size: 0.88rem;
}

/* ===== 资质详情卡片 ===== */
.standard-article {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.standard-article:hover {
  box-shadow: var(--shadow);
  border-color: var(--secondary);
}

.standard-article .article-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.standard-article .article-header h3 {
  font-size: 1.08rem;
  color: var(--primary);
  flex: 1;
}

.standard-article .article-header h3 a {
  color: var(--primary);
}

.standard-article .article-header h3 a:hover {
  color: var(--accent);
}

.article-badge {
  display: inline-block;
  background: rgba(200, 164, 92, 0.15);
  color: var(--secondary-dark);
  font-size: 0.78rem;
  padding: 2px 10px;
  border-radius: 4px;
  font-weight: 600;
  white-space: nowrap;
}

.article-category {
  display: inline-block;
  background: rgba(26, 58, 92, 0.08);
  color: var(--primary-light);
  font-size: 0.82rem;
  padding: 2px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.article-desc {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.article-actions .btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-actions .btn-detail {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--accent);
}

.article-actions .btn-detail:hover {
  border-color: var(--accent);
  background: rgba(45,123,203,0.05);
}

.article-actions .btn-consult {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
  border: none;
}

.article-actions .btn-consult:hover {
  box-shadow: 0 4px 15px rgba(200,164,92,0.35);
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .standards-layout {
    grid-template-columns: 1fr;
  }
  .standards-sidebar {
    position: static;
    order: -1;
  }
  .sidebar-section {
    margin-bottom: 16px;
  }
  .sidebar-nav-list {
    display: flex;
    flex-wrap: wrap;
    padding: 8px;
    gap: 4px;
  }
  .sidebar-nav-list a {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 14px;
    font-size: 0.82rem;
  }
  .sidebar-nav-list a:last-child {
    border-bottom: 1px solid var(--border);
  }
}

/* ===== 资质详情页 ===== */
.detail-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 30px;
  padding: 30px 0 60px;
}

.detail-article {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 36px;
}

.detail-article h1 {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.detail-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  font-size: 0.88rem;
  color: var(--text-light);
}

.detail-meta span {
  background: var(--bg);
  padding: 4px 12px;
  border-radius: 4px;
}

.detail-section {
  margin-bottom: 28px;
}

.detail-section h2 {
  font-size: 1.15rem;
  color: var(--primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--bg);
}

.detail-section p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 8px;
}

.detail-section ul {
  padding-left: 0;
}

.detail-section ul li {
  color: var(--text-light);
  font-size: 0.92rem;
  padding: 5px 0 5px 20px;
  position: relative;
  line-height: 1.7;
}

.detail-section ul li::before {
  content: '•';
  position: absolute;
  left: 4px;
  color: var(--secondary);
  font-weight: bold;
}

.detail-section ul li strong {
  color: var(--text);
}

.detail-cta-box {
  background: linear-gradient(135deg, var(--bg), var(--bg-white));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 32px;
  text-align: center;
}

.detail-cta-box h3 {
  color: var(--primary);
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.detail-cta-box p {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.detail-cta-box .cta-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.detail-footer {
  margin-top: 24px;
  padding: 16px 20px;
  background: var(--bg);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--text-lighter);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.detail-footer a {
  color: var(--accent);
}

.detail-footer a:hover {
  text-decoration: underline;
}

/* 相关资质推荐 */
.related-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

.related-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: var(--transition);
}

.related-item:hover {
  border-color: var(--secondary);
  box-shadow: var(--shadow);
}

.related-item h4 {
  font-size: 0.95rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.related-item p {
  font-size: 0.85rem;
  color: var(--text-lighter);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-item .related-link {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
}

.related-item .related-link:hover {
  color: var(--primary);
}

@media (max-width: 992px) {
  .detail-layout {
    grid-template-columns: 1fr;
  }
  .related-list {
    grid-template-columns: 1fr;
  }
  .detail-article {
    padding: 24px 20px;
  }
}

/* ===== 响应式通用 ===== */
@media (max-width: 768px) {
  .section {
    padding: 50px 0;
  }
  .section-title h2 {
    font-size: 1.5rem;
  }
  .hero-content h1 {
    font-size: 1.6rem;
  }
  .hero {
    padding: 60px 0 50px;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .hero-stat {
    padding: 12px;
  }
  .hero-stat .number {
    font-size: 1.4rem;
  }
  .cta-section {
    padding: 50px 0;
  }
  .cta-section h2 {
    font-size: 1.5rem;
  }
  .page-banner {
    padding: 40px 0;
  }
  .page-banner h1 {
    font-size: 1.6rem;
  }
}